CN114101757B - Double-edge cutter and machining method thereof - Google Patents
Double-edge cutter and machining method thereof Download PDFInfo
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- CN114101757B CN114101757B CN202111510992.9A CN202111510992A CN114101757B CN 114101757 B CN114101757 B CN 114101757B CN 202111510992 A CN202111510992 A CN 202111510992A CN 114101757 B CN114101757 B CN 114101757B
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Abstract
The invention relates to the technical field of jewelry processing cutters, in particular to a double-edge cutter and a processing method thereof. According to the invention, when the double-edge cutter is used for processing the jewelry, the cutter point can be used as the center, and the first cutting edge and the second cutting edge are used for rapidly drilling and polishing the jewelry, so that a smaller or ideal hole position is easy to obtain, and the efficiency of drilling the jewelry is improved.
Description
Technical Field
The invention relates to the technical field of jewelry processing cutters, in particular to a double-edge cutter and a processing method thereof.
Background
Along with the improvement of living standard of people, ornaments are more and more attracted and favored by people, the appearance of the ornaments determines the popularity degree of the ornaments to a great extent, so that various cutters for processing the surfaces of ornaments such as diamond inlaying and the like appear in the prior art, and play a non-negligible role in drilling and polishing the ornaments.
At present, when using the cutter to drill, polish the ornament, the service condition and the effect of cutter receive the restriction, and on the one hand, the structure of current cutter makes drilling hardly obtain less or ideal hole site, and on the other hand, the restriction of cutter material for partly need drill, the ornament of polishing can only select manual work.
The Chinese patent discloses a special cutter for processing jewelry and a using method thereof, and the special cutter comprises a cutter body, wherein a diamond cutter head is arranged at the end part of the cutter body, the diamond cutter head is provided with an inner groove along the cutting direction, the inner groove is provided with at least two groove wall surfaces, and the included angle between the adjacent groove wall surfaces is more than or equal to 90 degrees and less than 180 degrees.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a double-edge cutter and a processing method thereof, which are suitable for drilling jewelry, have high drilling speed, improve the efficiency of drilling the jewelry and are easy to obtain smaller or ideal hole sites.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a double-edged tool, includes the cutter arbor, the cutter arbor top is provided with the tool bit, the top of tool bit is equipped with first cutting edge and second cutting edge, first cutting edge with the top edge of second cutting edge all has the contained angle with the horizontal plane, first cutting edge with the crossing formation knife tip of second cutting edge, the knife tip is located the axis of cutter arbor.
According to the double-edge cutter, the first cutting edge and the second cutting edge are arranged at the top of the cutter head, when the jewelry is machined, the first cutting edge and the second cutting edge can simultaneously polish the jewelry, included angles are formed between the top edges of the first cutting edge and the second cutting edge and the horizontal plane, the first cutting edge and the second cutting edge are intersected to form the cutter point, the cutter point is located on the central axis of the cutter rod, when the jewelry is machined, the cutter point can be used as the center to rapidly drill and polish the jewelry, small or ideal hole sites are easy to obtain, and the efficiency of drilling the jewelry is improved.
Further, the included angles between the top edges of the first cutting edge and the second cutting edge and the horizontal plane are both 13.9-14.1 degrees.
Furthermore, the two sides of the top of the cutter bar are respectively provided with a first cutter back, the included angle between the first cutter back and the horizontal plane is 59-61 degrees, the first cutter back can be utilized to reduce chip removal resistance, and effective space avoidance and chip removal are carried out
Further, the top of the cutter bar is provided with a cutter groove, the cutter head is provided with a first position surface and a second position surface which are opposite, the cutter head is arranged on the cutter groove, the first position surface and the second position surface are respectively connected with two sides of the cutter groove, two first tool backs are respectively arranged on two sides of the cutter groove, the cutter groove can be used for better and conveniently installing and welding the cutter head, and the chip removal effect is achieved
Furthermore, second knife backs are respectively arranged on two sides of the knife grooves and are positioned between the knife grooves and the first knife back, and an included angle between each second knife back and the horizontal plane is 12-14 degrees, so that the situation that the strength of two side walls of the knife grooves is reduced due to the fact that the first knife backs directly extend to the two sides of the knife grooves is prevented, and meanwhile, the effects of avoiding empty and removing chips can be achieved.
Further, the first blade comprises a first front inclined surface located on the second position surface and a first rear inclined surface located on the first position surface, the second blade comprises a second front inclined surface located on the first position surface and a second rear inclined surface located on the second position surface, the first front inclined surface and the second front inclined surface respectively form an included angle of 61-63 degrees with the horizontal plane, the radial force of the double-blade cutter can be improved, the double-blade cutter is not prone to tipping during drilling and polishing, the double-blade cutter is more stable, the first rear inclined surface and the second rear inclined surface respectively form an included angle of 47.5-49.5 degrees with the horizontal plane, and the first rear inclined surface and the second rear inclined surface are respectively matched with the first front inclined surface and the second front inclined surface to adjust the cutting strength of the first blade and the second blade.
Further, the first blade further comprises a third rear inclined surface located on the first position surface, the third rear inclined surface is connected between the first rear inclined surface and the first front inclined surface, the second blade further comprises a fourth rear inclined surface located on the second position surface, the fourth rear inclined surface is connected between the second rear inclined surface and the second front inclined surface, and the third rear inclined surface and the fourth rear inclined surface respectively form an included angle of 4.9-5.1 degrees with the horizontal plane, so that the double-edge blade is prevented from contacting with the processing surface of the jewelry to influence the finish of the processing surface.
The invention also provides a processing method of the double-edge cutter, which comprises the following steps:
s1: preparing a cutter bar and a cutter head, and mounting the cutter head on the top of the cutter bar to form an initial cutter;
s2: and processing a first cutting edge and a second cutting edge by the cutter head, so that the top edges of the first cutting edge and the second cutting edge form included angles with the horizontal plane, and simultaneously, the cutter point formed by the intersection of the first cutting edge and the second cutting edge is positioned on the central axis of the cutter bar, thereby finishing the processing of the double-edge cutter.
The processing method of the double-edged tool comprises the steps of firstly installing the tool bit on the top of the tool bar to form an initial tool, then processing the initial tool, and processing a first cutting edge and a second cutting edge on the tool bit, so that the top edges of the first cutting edge and the second cutting edge form included angles with the horizontal plane, and simultaneously, a tool tip formed by the intersection of the first cutting edge and the second cutting edge is positioned on the central axis of the tool bar.
Preferably, in step S1, the process of preparing the cutter bar is: a cutter groove is cut at one end of the cutter bar, and a first cutter back and a second cutter back are respectively ground at two sides of the cutter groove, wherein the included angle between the first cutter back and the horizontal plane is 59-61 degrees, and the included angle between the second cutter back and the horizontal plane is 12-14 degrees.
Preferably, in step S2, the tool bit is provided with a first position surface and a second position surface which are opposite to each other, and the process of machining the tool bit is as follows: two symmetrical inclined planes which form an angle of 13.9-14.1 degrees with the horizontal plane are ground at the top of the cutter head along the length direction of the cutter groove, then a first front inclined plane and a second front inclined plane which form an angle of 61-63 degrees with the horizontal plane are respectively ground at the top of the cutter head along the width direction of the cutter groove, then a first back inclined plane which forms an angle of 47.5-49.5 degrees with the horizontal plane and a third back inclined plane which forms an angle of 4.9-5.1 degrees with the horizontal plane are ground at the first plane, a second back inclined plane which forms an angle of 47.5-49.5 degrees with the horizontal plane and a fourth back inclined plane which forms an angle of 4.9-5.1 degrees with the horizontal plane are ground at the second plane, the third back inclined plane is connected between the third back inclined plane and the first front inclined plane, the fourth back inclined plane is connected between the second back inclined plane and the second front inclined plane, and the intersection of the first front inclined plane, and the third back inclined plane and the intersection of the second front inclined plane and the fourth back inclined plane are formed.
Compared with the background technology, the double-edge cutter and the processing method thereof of the invention have the following beneficial effects:
the tool point is positioned on the central axis of the tool bar, when the double-edge tool is used for processing the jewelry, the tool point can be used as the center, and the first cutting edge and the second cutting edge are simultaneously used for rapidly drilling and polishing the jewelry, so that smaller or ideal hole positions are easily obtained, and the efficiency of drilling the jewelry is improved; the tool bit is a single crystal diamond structure, is an ideal tool material for ultra-precision cutting, is suitable for jewelry processing, and has high processing efficiency; the tool grooves are arranged, so that the double-edge tool can conveniently remove chips during drilling and polishing of the jewelry; the arrangement of the first knife back and the second knife back can realize effective space avoidance during processing of jewelry, can be used for chip removal, and simultaneously ensures the strength of the side wall of the knife groove; the first cutting edge and the second cutting edge respectively comprise a first front inclined surface and a second front inclined surface, so that the radial force of the double-edge cutter can be improved, the double-edge cutter is not easy to tip during drilling and polishing, and the double-edge cutter is more stable; the first cutting edge and the second cutting edge respectively comprise a first back inclined surface and a second back inclined surface, and the cutting strength of the first cutting edge and the cutting strength of the second cutting edge can be adjusted by respectively matching with the first front inclined surface and the second front inclined surface; the first cutting edge and the second cutting edge respectively comprise a third rear inclined plane and a fourth rear inclined plane, so that the smooth finish of the processing surface is prevented from being influenced by the contact of the double-edge cutter and the jewelry processing surface.
Drawings
FIG. 1 is a schematic structural diagram of a double-edged tool according to an embodiment of the present invention;
FIG. 2 is a schematic view of a tool bar according to an embodiment of the present invention;
FIG. 3 is a schematic view of a tool tip according to an embodiment of the invention from a first perspective;
FIG. 4 is a schematic view of a tool tip from a second perspective in an embodiment of the invention;
FIG. 5 is a flow chart of the double-edged tool according to an embodiment of the present invention;
in the drawings: 1, cutting a tool bar; 11-a first blade back; 12-a second blade back; 2-a cutter head; 21-a first blade edge; 211 — a first front bevel; 212-first rear bevel; 213-third rear bevel; 22-a second blade edge; 221-a second front bevel; 222-a second rear bevel; 223-a fourth rear bevel; 23-a first bit plane; 24-a second bit plane; 25-a tool nose; 3-knife grooves.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example one
As shown in fig. 1 and 3, a double-edged cutting tool comprises a tool bar 1, wherein a tool bit 2 is arranged at the top of the tool bar 1, a first cutting edge 21 and a second cutting edge 22 are arranged at the top of the tool bit 2, included angles are formed between the top edges of the first cutting edge 21 and the second cutting edge 22 and the horizontal plane, the first cutting edge 21 and the second cutting edge 22 are intersected to form a tool nose 25, and the tool nose 25 is located on the central axis of the tool bar 1.
Foretell twolip cutter, 2 tops of tool bit are equipped with first cutting edge 21 and second cutting edge 22, add man-hour to ornament, first cutting edge 21 and second cutting edge 22 can be polished ornament simultaneously, and the top edge of first cutting edge 21 and second cutting edge 22 all has the contained angle with the horizontal plane, first cutting edge 21 intersects with second cutting edge 22 and forms knife tip 25, knife tip 25 is located the axis of cutter arbor 1, add man-hour to ornament, can knife tip 25 be central, carry out quick drilling to ornament and polish, easily obtain less or ideal hole site, and improve the efficiency of driling to ornament.
The tool bit 2 is of a single crystal diamond structure, the single crystal diamond has high hardness, good wear resistance, high strength and good surface roughness, and the first cutting edge 21 and the second cutting edge 22 which are extremely sharp can be sharpened, so that the tool bit is an ideal tool material for ultraprecise cutting, is suitable for jewelry processing and has high processing efficiency.
The cutter bar 1 is of a tungsten steel structure, and the cutter bar 1 is high in strength, good in toughness, heat-resistant, corrosion-resistant and the like.
The top of tool bit 2 is the toper, and the bottom of tool bit 2 is the cuboid shape, and first cutting edge 21 and second cutting edge 22 use knife tip 25 to distribute as symmetry center symmetry, can make drilling, the effect of polishing to ornament better.
The included angles between the top edges of the first cutting edge 21 and the second cutting edge 22 and the horizontal plane are both 13.9-14.1 degrees, and effective clearance can be realized when the jewelry is processed by utilizing the included angles between the top edges of the first cutting edge 21 and the second cutting edge 22 and the horizontal plane, and the included angles can be used for chip removal.
As shown in figures 1 and 2, two sides of the top of the cutter bar 1 are respectively provided with a first cutter back 11, and the included angle between the first cutter back 11 and the horizontal plane is 59-61 degrees, when the jewelry is machined, the first cutter back 11 can be utilized to reduce the chip removal resistance, so that effective space avoidance and chip removal are carried out.
As shown in fig. 1 and 2, the cutter bar 1 is cylindrical, can be well used by most processing equipment, and is easy to popularize and use.
As shown in fig. 1 and 2, a knife slot 3 is formed in the top of the knife bar 1, the knife head 2 is mounted in the knife slot 3, and the two first knife backs 11 are respectively located on two sides of the knife slot 3, so that the knife head 2 can be mounted and welded conveniently, and the function of removing chips is achieved. Specifically, the width of the knife groove 3 is 1.005 mm-1.01 mm, the knife head 2 is provided with a first position surface 23 and a second position surface 24 which are opposite to each other, the first position surface 23 and the second position surface 24 are respectively welded with the two sides of the knife groove 3, and the welding thicknesses of the first position surface 23, the second position surface 24 and the two sides of the knife groove 3 are small and uniform, so that the knife head 2 can be better fixed, the concentrated stress caused by the welding position cannot be generated during processing, the knife head 2 is damaged, the knife head 2 is located in the center of the top of the knife handle due to uniform welding, when jewelry is drilled and polished, the phenomenon that the processing position is partially empty cannot be generated, and the drilling or polishing accuracy is higher.
As shown in fig. 1 and 2, the two sides of the knife slot 3 are respectively provided with a second knife back 12, the second knife back 12 is located between the knife slot 3 and the first knife back 11, an included angle between the second knife back 12 and a horizontal plane is 12 to 14 degrees, specifically, an included angle between the second knife back 12 and the horizontal plane is 13 degrees, the situation that the strength of two side walls of the knife slot 3 is reduced due to the fact that the first knife back 11 directly extends to the two sides of the knife slot 3 is prevented, and meanwhile, the functions of avoiding empty space and discharging chips can be achieved.
Example two
The present embodiment is similar to the embodiment, except that, as shown in fig. 3 and 4, the first blade 21 includes a first front inclined surface 211 located on the second location surface 24, the second blade 22 includes a second front inclined surface 221 located on the first location surface 23, and the first front inclined surface 211 and the second front inclined surface 221 respectively form an included angle of 61 ° to 63 ° with the horizontal plane, specifically, the first front inclined surface 211 and the second front inclined surface 221 respectively form an included angle of 62 ° with the horizontal plane, so that the first blade 21 and the second blade 22 respectively have a negative rake angle of 28 °, which can improve the radial force of the double-edged tool, and is not easy to break during drilling and grinding, so that the double-edged tool is more stable.
As shown in fig. 3 and 4, the first blade 21 includes a first back bevel 212 located on the first location surface 23, the second blade 22 includes a second back bevel 222 located on the second location surface 24, the first back bevel 212 and the second back bevel 222 respectively form an included angle of 47.5 ° to 49.5 ° with the horizontal plane, specifically, the first back bevel 212 and the second back bevel 222 respectively form an included angle of 48.5 ° with the horizontal plane, that is, the first blade 21 has a first back angle of 48.5 °, the second blade 22 has a second back angle of 48.5 °, the first back angle and the first back angle cooperate with the first negative front angle to the blade to adjust the cutting strength of the first blade 21, and the second back angle and the negative front angle of the second blade 22 cooperate with adjust the cutting strength of the second blade 22.
As shown in fig. 3 and 4, the first blade 21 further includes a third rear inclined surface 213 located on the first position surface 23, the third rear inclined surface 213 is connected between the first rear inclined surface 212 and the first front inclined surface 211, the second blade 22 further includes a fourth rear inclined surface 223 located on the second position surface 24, the fourth rear inclined surface 223 is connected between the second rear inclined surface 222 and the second front inclined surface 221, and the third rear inclined surface 213 and the fourth rear inclined surface 223 respectively form an included angle of 4.9 ° to 5.1 ° with the horizontal plane. Specifically, the third rear inclined surface 213 and the fourth rear inclined surface 223 respectively form an included angle of 5 degrees with the horizontal plane, that is, the first blade 21 has a third clearance angle of 5 degrees, the second blade 22 has a fourth clearance angle of 5 degrees, and the third clearance angle and the fourth clearance angle play a role in clearance avoidance, so as to prevent the double-edged tool from contacting with the jewelry processing surface to affect the finish of the processing surface.
EXAMPLE III
A method for machining a double-edged tool, as shown in fig. 5, comprises the steps of:
s1: preparing a cutter bar 1 and a cutter head 2, and mounting the cutter head 2 on the top of the cutter bar 1 to form an initial cutter;
s2: and (3) processing a first cutting edge 21 and a second cutting edge 22 on the cutter head 2, so that the top edges of the first cutting edge 21 and the second cutting edge 22 form included angles with the horizontal plane, and simultaneously, a cutter point 25 formed by intersecting the first cutting edge 21 and the second cutting edge 22 is positioned in the central axis of the cutter rod 1, thereby finishing the processing of the double-edge cutter.
In step S1, the process of preparing the cutter bar 1 is: the wire laying speed of the wire cutting machine tool is 2000mm/h, a cutter groove 3 with the width of 1.005mm is cut out of one end of a cutter bar 1, then the cutter bar 1 is placed on a five-axis numerical control multifunctional grinding machine, and a first cutter back 11 with the angle of 60 degrees and a second cutter back 12 with the angle of 13 degrees are respectively ground at two sides of the cutter groove 3.
The tool groove 3 is used for installing the tool bit 2, and can also play a role in chip removal when a double-edge tool is used for processing jewelry, the first tool back 11 and the second tool back 12 can reduce chip removal resistance and effectively avoid space and remove chips, and meanwhile, the second tool back 12 prevents the two side walls of the tool groove 3 from being reduced in strength as the first tool back 11 directly extends to the two sides of the tool groove 3.
The process of preparing the cutter head 2 and welding the cutter head 2 and the cutter bar 1 comprises the following steps: bonding a tool bit 2 made of single crystal diamond in the tool groove 3 by using alloy powder, calibrating the installation position of the tool bit 2, putting the tool into a vacuum welding machine, continuously heating at 860 ℃ for 120min, waiting for temperature reduction after welding is finished, and taking out an initial tool;
in step S2, the process of processing the tool bit 2 specifically includes: placing an initial cutter on a powerful grinder, setting the rotating speed of a grinding wheel to be 2100rpm, firstly, grinding two symmetrical inclined planes which form an angle of 14 degrees with the horizontal plane at the top of a cutter head 2 along the length direction of a cutter groove 3, namely, the top edges of a first cutting edge 21 and a second cutting edge 22 form an included angle with the horizontal plane; then a first front inclined plane 211 and a second front inclined plane 221 which form 62 degrees with the horizontal plane are respectively ground on the top of the cutter head 2 along the width direction of the cutter slot 3, the first front inclined plane 211 is positioned on a second position surface 24, the second front inclined plane 221 is positioned on a first position surface 23, then a first rear inclined plane 212 which forms 48.5 degrees with the horizontal plane and a third rear angle which forms 5 degrees with the horizontal plane are ground on the first position surface 23, a second rear inclined plane 222 which forms 48.5 degrees with the horizontal plane and a fourth rear angle which forms 5 degrees with the horizontal plane are ground on the second position surface 24, the third rear inclined plane 213 is connected between the third rear inclined plane 213 and the first front inclined plane 211, and the fourth rear inclined plane 223 is connected between the second rear inclined plane 222 and the second front inclined plane 221, so that the machining of the first cutter blade 21 and the second cutter blade 22 is completed, and a cutter point 25 is formed at the intersection of the first front inclined plane, the third rear inclined plane, the second front inclined plane and the fourth rear inclined plane, the cutter head 2 is cooled by cooling water, and the machining of double blades is completed;
wherein, 2 mounted position of tool bit calibrate, can make the accuracy of twolip cutter higher, treat to take out initial cutter after the cooling, avoid the high temperature to cause the injury to the staff, prevent simultaneously because of the inside and outside temperature of vacuum welding machine differs greatly, lead to the tool bit 2 of the twolip cutter taken out to turn yellow, reduce the hardness and the toughness of tool bit 2.
The top of the cutter head 2 is polished into two symmetrical inclined planes which form an angle of 14 degrees with the horizontal plane along the length direction of the cutter groove 3, so that space avoidance and chip removal can be effectively realized during processing of jewelry; the top of the tool bit 2 is respectively ground into a first front inclined surface 211 and a second front inclined surface 221 which form an angle of 62 degrees with the horizontal plane along the width direction of the tool slot 3, so that the first cutting edge 21 and the second cutting edge 22 have a negative rake angle of 28 degrees, the radial force of the double-edge tool can be improved, the tool is not easy to break during drilling and grinding, and the double-edge tool is more stable; the first rear inclined surface 212 and the second rear inclined surface 222 respectively form an included angle of 48.5 degrees with the horizontal plane, that is, the first blade 21 has a first clearance angle of 48.5 degrees, the second blade 22 has a second clearance angle of 48.5 degrees, the first clearance angle is matched with the first negative rake angle to the blade to adjust the cutting strength of the first blade 21, and the second clearance angle is matched with the negative rake angle of the second blade 22 to adjust the cutting strength of the second blade 22; the third rear inclined plane 213 and the fourth rear inclined plane 223 respectively form an included angle of 5 degrees with the horizontal plane, that is, the first cutting edge 21 has a third clearance angle of 5 degrees, the second cutting edge 22 has a fourth clearance angle of 5 degrees, and the third clearance angle and the fourth clearance angle play a role of clearance avoidance, so that the double-edged tool is prevented from contacting with the jewelry processing surface to influence the smoothness of the processing surface.
According to the double-edge cutter processed by the processing method, the distance deviation between the cutter point 25 and the central axis of the cutter bar 1 is within 0.005mm, the cutter point 25 is used as the center, rapid drilling and polishing are carried out on jewelry, and small or ideal hole positions are easily obtained.
Example four
The present embodiment is similar to the third embodiment, except that, in step S1, the process of preparing the tool bar 1 is as follows: the method comprises the steps of setting the wiring speed of a linear cutting machine to be 2000mm/h, cutting a cutter groove 3 with the width of 1.005mm from one end of a cutter bar 1, placing the cutter bar 1 on a five-axis numerical control multifunctional grinding machine, and grinding a first cutter back 11 with the angle of 61 degrees and a second cutter back 12 with the angle of 12 degrees on two sides of the cutter groove 3 respectively.
In step S2, the process of processing the tool bit 2 specifically includes: placing an initial cutter on a powerful grinding machine, setting the rotating speed of a grinding wheel to be 2000rpm, firstly grinding two symmetrical inclined planes which form an angle of 13.9 degrees with the horizontal plane at the top of a cutter head 2 along the length direction of a cutter groove 3, namely forming included angles between the top edges of a first cutting edge 21 and a second cutting edge 22 and the horizontal plane; then a first front inclined plane 211 and a second front inclined plane 221 which form an angle of 61 degrees with the horizontal plane are respectively ground on the top of the tool bit 2 along the width direction of the tool slot 3, the first front inclined plane 211 is positioned on a second position surface 24, the second front inclined plane 221 is positioned on a first position surface 23, a first rear inclined plane 212 which forms an angle of 47.5 degrees with the horizontal plane and a third rear angle which forms an angle of 4.9 degrees with the horizontal plane are ground on the first position surface 23, a second rear inclined plane 222 which forms an angle of 47.5 degrees with the horizontal plane and a fourth rear angle which forms an angle of 4.9 degrees with the horizontal plane are ground on the second position surface 24, the third rear inclined plane 213 is connected between the third rear inclined plane 213 and the first front inclined plane 211, the fourth rear inclined plane 223 is connected between the second rear inclined plane 222 and the second front inclined plane 221, the processing of the first blade 21 and the second blade 22 is finished, and a tool bit 25 is formed at the intersection of the first front inclined plane, the third rear inclined plane, the second rear inclined plane, the tool bit 2 is cooled by cooling water, and the double cutting edge is finished;
EXAMPLE five
This embodiment is similar to the third embodiment, except that in step S1, the process of preparing the tool bar 1 is as follows: the method comprises the steps of setting the wiring speed of a linear cutting machine to be 2000mm/h, cutting a cutter groove 3 with the width of 1.01mm from one end of a cutter bar 1, placing the cutter bar 1 on a five-axis numerical control multifunctional grinding machine, and grinding a first cutter back 11 with the angle of 59 degrees and a second cutter back 12 with the angle of 14 degrees on two sides of the cutter groove 3 respectively.
In step S2, the process of processing the tool bit 2 specifically includes: placing an initial cutter on a powerful grinder, setting the rotating speed of a grinding wheel to 2200rpm, firstly, grinding two symmetrical inclined planes which form an angle of 14.1 degrees with the horizontal plane at the top of a cutter head 2 along the length direction of a cutter groove 3, namely, the top edges of a first cutting edge 21 and a second cutting edge 22 form an included angle with the horizontal plane; then a first front inclined plane 211 and a second front inclined plane 221 which form 63 degrees with the horizontal plane are respectively ground on the top of the tool bit 2 along the width direction of the tool slot 3, the first front inclined plane 211 is positioned on a second position surface 24, the second front inclined plane 221 is positioned on a first position surface 23, a first rear inclined plane 212 which forms 49.5 degrees with the horizontal plane and a third rear angle which forms 5.1 degrees with the horizontal plane are ground on the first position surface 23, a second rear inclined plane 222 which forms 49.5 degrees with the horizontal plane and a fourth rear angle which forms 5.1 degrees with the horizontal plane are ground on the second position surface 24, the third rear inclined plane 213 is connected between the third rear inclined plane 213 and the first front inclined plane 211, the fourth rear inclined plane 223 is connected between the second rear inclined plane 222 and the second front inclined plane 221, the processing of the first blade 21 and the second blade 22 is finished, a tool bit 25 is formed at the intersection of the first front inclined plane, the third rear inclined plane, the second front inclined plane and the fourth rear inclined plane, cooling water is used for cooling the tool bit 2, and processing of double blades is finished;
in the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A double-edge cutter comprises a cutter bar (1), wherein a cutter head (2) is arranged at the top of the cutter bar (1), a first cutter edge (21) and a second cutter edge (22) are arranged at the top of the cutter head (2), and included angles are formed between the top edges of the first cutter edge (21) and the second cutter edge (22) and a horizontal plane, and the double-edge cutter is characterized in that the first cutter edge (21) and the second cutter edge (22) are intersected to form a cutter point (25), and the cutter point (25) is located on the central axis of the cutter bar (1); two sides of the top of the cutter bar (1) are respectively provided with a first cutter back (11); the top of the cutter bar (1) is provided with a cutter groove (3), the cutter head (2) is provided with a first position surface (23) and a second position surface (24) which are opposite, the cutter head (2) is installed on the cutter groove (3), the first position surface (23) and the second position surface (24) are respectively connected with two sides of the cutter groove (3), and the two first cutter backs (11) are respectively located on two sides of the cutter groove (3); second knife backs (12) are respectively arranged on two sides of the knife groove (3), and the second knife backs (12) are positioned between the knife groove (3) and the first knife back (11); the first cutting edge (21) comprises a first front inclined surface (211) positioned on the second position surface (24) and a first rear inclined surface (212) positioned on the first position surface (23), the second cutting edge (22) comprises a second front inclined surface (221) positioned on the first position surface (23) and a second rear inclined surface (222) positioned on the second position surface (24), the first front inclined surface (211) and the second front inclined surface (221) form an included angle of 61-63 degrees with the horizontal plane respectively, and the first rear inclined surface (212) and the second rear inclined surface (222) form an included angle of 47.5-49.5 degrees with the horizontal plane respectively; the first blade (21) further comprises a third rear inclined surface (213) located on the first plane (23), the third rear inclined surface (213) is connected between the first rear inclined surface (212) and the first front inclined surface (211), the second blade (22) further comprises a fourth rear inclined surface (223) located on the second plane (24), the fourth rear inclined surface (223) is connected between the second rear inclined surface (222) and the second front inclined surface (221), and the third rear inclined surface (213) and the fourth rear inclined surface (223) respectively form an included angle of 4.9-5.1 degrees with the horizontal plane.
2. A double-edged tool as claimed in claim 1, characterized in that the top edges of the first and second cutting edges (21, 22) both enclose an angle of 13.9 ° to 14.1 ° with the horizontal plane.
3. A double-edged tool as claimed in claim 1, characterized in that the angle between the first tool back (11) and the horizontal plane is 59 ° to 61 °.
4. A double-edged tool as claimed in claim 1, characterized in that the angle of the second back (12) to the horizontal is 12 ° to 14 °.
5. A method of machining a double-edged tool as claimed in any of claims 1 to 4, characterized by the steps of:
s1: preparing a cutter bar (1) and a cutter head (2), cutting a cutter groove (3) at one end of the cutter bar (1), grinding a first cutter back (11) and a second cutter back (12) at two sides of the cutter groove (3) respectively, and installing the cutter head (2) in the cutter groove (3) at the top of the cutter bar (1) to form an initial cutter;
s2: processing a first blade (21) and a second blade (22) on the cutter head (2), enabling the top edges of the first blade (21) and the second blade (22) to form an included angle with the horizontal plane, arranging a first position surface (23) and a second position surface (24) which are opposite to each other on the cutter head (2), respectively grinding a first front inclined surface (211) and a second front inclined surface (221) which form an included angle of 61-63 degrees with the horizontal plane along the width direction of the cutter groove (3) on the top of the cutter head (2), grinding a first rear inclined surface (212) which forms an included angle of 47.5-49.5 degrees with the horizontal plane and a third rear inclined surface (213) which forms an included angle of 4.9-5.1 degrees with the horizontal plane on the first position surface (23), grinding a second rear inclined surface (222) which forms an included angle of 47.5-49.5 degrees with the horizontal plane on the second position surface (24), forming a fourth rear inclined surface (223) which forms an included angle of 4.9-5.1 degrees with the horizontal plane and the central axis (213) and is connected between the third rear inclined surface (213) and the first front inclined surface (22), and the cutter head (25), and the second rear inclined surface (221) are formed on the cutter head (2), and the cutter head (21, and the cutter head (2) are connected between the fourth inclined surface (222), and finishing the machining of the double-edged tool.
6. The method for machining a double-edged tool as claimed in claim 5, characterized in that, in step S1, the first tool back (11) forms an angle of 59 to 61 ° with the horizontal plane, and the second tool back (12) forms an angle of 12 to 14 ° with the horizontal plane.
7. The method of claim 5, wherein the step S2 of forming the included angle between the top edge of the first cutting edge (21) and the top edge of the second cutting edge (22) and the horizontal plane is as follows: two symmetrical inclined planes which form an angle of 13.9-14.1 degrees with the horizontal plane are ground at the top of the cutter head (2) along the length direction of the cutter groove (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111510992.9A CN114101757B (en) | 2021-12-10 | 2021-12-10 | Double-edge cutter and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111510992.9A CN114101757B (en) | 2021-12-10 | 2021-12-10 | Double-edge cutter and machining method thereof |
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| CN114101757A CN114101757A (en) | 2022-03-01 |
| CN114101757B true CN114101757B (en) | 2023-03-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
| CN210023873U (en) * | 2019-06-11 | 2020-02-07 | 四川建安工业有限责任公司 | Composite cutter bar for hole machining |
| CN213560144U (en) * | 2020-10-15 | 2021-06-29 | 常州昊锐工具有限公司 | Multi-step milling cutter for machining precision holes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL129665A (en) * | 1999-04-29 | 2008-06-05 | Rafael Morgulis | Cutting tool assembly and cutting insert therefor |
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2021
- 2021-12-10 CN CN202111510992.9A patent/CN114101757B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
| CN210023873U (en) * | 2019-06-11 | 2020-02-07 | 四川建安工业有限责任公司 | Composite cutter bar for hole machining |
| CN213560144U (en) * | 2020-10-15 | 2021-06-29 | 常州昊锐工具有限公司 | Multi-step milling cutter for machining precision holes |
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| CN114101757A (en) | 2022-03-01 |
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