CN212350401U - Big-cutting-depth double-hole double-head rear sweeping knife - Google Patents
Big-cutting-depth double-hole double-head rear sweeping knife Download PDFInfo
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- CN212350401U CN212350401U CN202021007079.8U CN202021007079U CN212350401U CN 212350401 U CN212350401 U CN 212350401U CN 202021007079 U CN202021007079 U CN 202021007079U CN 212350401 U CN212350401 U CN 212350401U
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Abstract
The utility model discloses a double-hole double-head rear sweeping knife with large cutting depth; the rear sweeping cutter comprises a rear sweeping cutter body, wherein the rear sweeping cutter body comprises a cutter body and two cutter heads arranged at the upper end and the lower end of the cutter body; the cutter body is provided with a first mounting hole and a second mounting hole for fixing the cutter body; the cutter head comprises a main rear sweeping surface and a chip breaker groove; the chip breaker groove is arranged on one side of the cutter head connected with the main rear scanning surface; an air avoiding surface is arranged on one side of the cutter head opposite to the main rear sweeping surface; a front tool face is arranged between the main rear scanning face and the chip breaker groove, and a rough rear scanning cutting edge is formed by the intersection line of the front tool face and the main rear scanning face; one end of the top of the cutter head, which is close to the front cutter face, is provided with an auxiliary rear sweeping surface, and the intersection line of the auxiliary rear sweeping surface and the front cutter face forms a finish machining rear sweeping cutting edge; the utility model discloses convenient to use, machining efficiency is good, saves process time, and the rigidity is good, long-lived.
Description
Technical Field
The utility model relates to a machining cutter field specifically is a big deep-cutting's double-hole double-end back sweep sword.
Background
A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The cutting tools for cutting wood are called woodworking tools. There is also a class of tools of particular application for geological exploration, well drilling, mine drilling, known as mine tools.
The lathe machining is divided according to the technology, namely turning cutter, drilling cutter, milling cutter, thread machining cutter, turning tool, blade cutter grain, drill bit, twist drill, step drill, milling cutter ball cutter, silk plate cone tap, thread milling cutter and the like.
The rear sweeping cutter is also called as a back cutter, the turning tool is divided into a left offset cutter and a right offset cutter, the rear sweeping cutter is actually an inverse offset cutter, the left offset cutter (the installation direction of the cutter needs to be seen when the cutters are arranged) is needed to be used for processing from the inside of the main shaft to the outside of the workpiece, but the rear sweeping cutter is not a common inverse offset cutter in shape, for example, a cutter head of a lower cutter in a groove or a common left offset cutter is interfered, and the rear sweeping cutter with a blade right in a special shape is needed for processing.
Under the existing technical conditions, when a cutting blade is used for carrying out back turning processing, the requirement of a workpiece is met by multiple times of feeding when the workpiece is cut to a large depth, and due to the rigidity and design reasons of a blank body, the rigidity of a rear sweeping blade is not enough, so that the direct one-time cutting forming cannot be realized, and the processing efficiency is influenced.
Therefore, a further improvement on the prior art is needed, and a large-cutting-depth double-hole double-head rear sweeping knife with convenient use and good rigidity is provided, so that the efficiency of back-sweeping knife back-up machining is improved, the machining time is saved, and the service life of the rear sweeping knife is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the weak point that exists among the above-mentioned technique, provide a convenient to use, the good diplopore double-end back-sweeping blade of big cutting depth of rigidity, improve the back-sweeping blade back-carrying vehicle and add man-hour efficiency, save process time, improve processingquality, prolong the life of back-sweeping blade simultaneously.
In order to achieve the purpose of the utility model, the utility model provides a following technical scheme: a double-hole double-head rear sweeping knife with large cutting depth comprises a rear sweeping knife body, wherein the rear sweeping knife body comprises a knife body and two knife heads which are respectively arranged at the upper end and the lower end of the knife body;
the cutter body is provided with a first mounting hole and a second mounting hole for fixing the cutter body; the first mounting hole and the second mounting hole penetrate through the front side and the rear side of the cutter body along the horizontal direction; the first mounting hole and the second mounting hole are arranged on the cutter body in an up-down manner;
each cutter head comprises a main rear sweeping surface and a chip breaker groove; the chip breaker groove is arranged on one side of the cutter head connected with the main rear scanning surface; the chip breaker groove is a V-shaped groove which is obliquely arranged and comprises a first inclined surface, a circular arc-shaped transition surface and a second inclined surface which are sequentially connected;
an air avoiding surface is arranged on one side of the cutter head opposite to the main rear sweeping surface;
a front cutter face is arranged between the main rear sweeping surface and the chip breaker groove and is connected with the first inclined surface; the intersection line of the front cutter face and the main back sweeping face forms a rough rear sweeping cutting edge;
the tail end of the cutter head is provided with an auxiliary rear scanning surface, the auxiliary rear scanning surface is connected with the front cutter surface, and a fine-machining rear scanning cutting edge is formed at the connection position of the auxiliary rear scanning surface and the front cutter surface; and a cutter point is arranged at the joint of one end of the front cutter surface, which is close to the auxiliary rear sweeping surface, and the clearance avoiding surface, and is in an arc shape.
Preferably, the length of the rear sweeping knife body is 34mm, the width of the rear sweeping knife body is 8mm, and the thickness of the rear sweeping knife body is 4 mm.
Preferably, the first mounting hole and the second mounting hole are circular holes and have the same size; the diameters of the first mounting hole and the second mounting hole are both 4.6 mm; the vertical distance between the circle center of the first mounting hole and the circle center of the second mounting hole is 11.5 mm.
Preferably, the first transition inclined plane and the second transition inclined plane are respectively arranged at the joints of the first mounting hole and the front side surface and the rear side surface of the cutter body.
Preferably, the joints of the second mounting hole and the front side surface and the rear side surface of the cutter body are respectively provided with a third transition inclined surface and a fourth transition inclined surface.
Preferably, the first transition slope and the third transition slope have the same size; the second transition inclined plane and the fourth transition inclined plane are consistent in size; the maximum diameters of the first transition inclined plane, the second transition inclined plane, the third transition inclined plane and the fourth transition inclined plane are all 5.8 mm.
Preferably, the length of the escape surface is 6.5 mm.
Preferably, the included angle between the rough machining rear sweeping cutting edge and the horizontal plane is 60 degrees; and the included angle between the fine-machined sweeping cutting edge and the horizontal plane is 15 degrees.
Preferably, the arc radius of the arc-shaped transition surface is 0.55-0.6 mm.
Preferably, the radius of the tip is 0.1mm and the relief angle of the tip is 5 °.
Advantageous effects
Compared with the prior art, the utility model discloses the beneficial effect who gains: the utility model provides a big deep-cutting's double-hole double-end back sweep sword, back sweep sword body 1 adopts length to be 34mm, and the width is 8mm, and thickness is 4 mm's ligand preparation, and the rigidity of cutter is stronger. The utility model discloses a set up first mounting hole and second mounting hole on the cutter body, the setting of first mounting hole and second mounting hole is convenient for right the cutter body is installed fixedly, and it is better to make the back sweep the sword man-hour steadiness. The utility model is provided with a rough machining back sweeping cutting edge and a finish machining back sweeping cutting edge, and realizes the rough and finish integrated machining by the rough machining back sweeping cutting edge and the finish machining back sweeping cutting edge, thereby improving the machining efficiency and the machining quality and saving the machining time; meanwhile, one-knife cutting and multi-knife cutting can be carried out according to actual needs, the maximum processing depth of the one-knife cutting is 5.7mm, the processing depth of the multi-knife cutting is 6.2mm, and the large and small cutting depth universality is realized; the utility model discloses a design into V type groove with the chip breaker, the bits of being convenient for process out are broken more easily, place to twine the bits. The utility model discloses a knife tip carries out passivation treatment, and the knife tip after the passivation is the circular arc type, the radius of knife tip is 0.1mm, and the setting of this structure is for the abrasive resistance of reinforcing sword point department, reduces the cutting thickness of sword point department, makes machined surface form under less cutting thickness, is favorable to improving work piece surface finish, improves the heat dissipation condition of sword point department, reducing wear, extension the utility model discloses a life.
Drawings
Fig. 1 is an overall structure diagram of a double-hole double-head rear sweeping knife with large cutting depth of the utility model.
Fig. 2 is an enlarged view of the cutter head of fig. 1.
Fig. 3 is a front view of a double-hole double-head rear sweeping knife with large cutting depth of the utility model.
Fig. 4 is a rear view of a double-hole double-head rear sweeping knife with large cutting depth of the utility model.
Fig. 5 is a right side view of the double-hole double-head rear sweeping knife with large cutting depth of the utility model.
Wherein, the technical characteristics that each reference numeral refers to are as follows: 1-rear sweeping cutter body, 2-cutter body, 21-first mounting hole, 211-first transition inclined plane, 212-second transition inclined plane, 22-second mounting hole, 221-third transition inclined plane, 222-fourth transition inclined plane, 3-cutter head, 31-main rear sweeping plane, 32-chip breaker groove, 321-first inclined plane, 322-circular arc transition plane, 323-second inclined plane, 33-clearance plane, 34-front cutter face, 35-auxiliary rear sweeping plane, 36-rough machining rear sweeping edge, 37-finish machining rear sweeping edge and 38-cutter point.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
As shown in figure 1, the large-cutting-depth double-hole double-head rear sweeping cutter comprises a rear sweeping cutter body 1, wherein the rear sweeping cutter body 1 is made of a ligand with the length of 34mm, the width of 8mm and the thickness of 4mm, and the cutter is higher in rigidity.
As shown in fig. 1 to 5, the rear wiper body 1 includes a wiper body 2 and two wiper heads 3 respectively disposed at upper and lower ends of the wiper body 2; the arrangement of the tool bit 3 is convenient for cutting a machined workpiece during back turning.
As shown in fig. 1, 3 and 4, the cutter body 2 is provided with a first mounting hole 21 and a second mounting hole 22 for fixing the cutter body 2; the first mounting hole 21 and the second mounting hole 22 penetrate through the front side and the rear side of the cutter body 2 along the horizontal direction; the first mounting hole 2 and the second mounting hole 22 are arranged on the cutter body 2 in an up-down manner; the first mounting hole 21 and the second mounting hole 22 are circular holes and have the same size; the diameters of the first mounting hole 21 and the second mounting hole 22 are both 4.6 mm; the vertical distance between the circle center of the first mounting hole 21 and the circle center of the second mounting hole 22 is 11.5 mm. The first mounting hole 21 and the second mounting hole 22 are convenient for the cutter body 2 to be mounted and fixed, so that the rear sweeping cutter has better stability during machining.
As shown in fig. 1, 3 and 4, the first transition inclined surface 211 and the second transition inclined surface 212 are respectively disposed at the connection positions of the first mounting hole 21 and the front side surface and the rear side surface of the cutter body 2. The joints of the second mounting hole 22 and the front side and the rear side of the cutter body 2 are respectively provided with a third transition inclined surface 221 and a fourth transition inclined surface 222. The first transition inclined surface 211 and the third transition inclined surface 221 have the same size; the second transition slope 212 and the fourth transition slope 222 are the same in size; the maximum diameters of the first transition inclined surface 211, the second transition inclined surface 212, the third transition inclined surface 221 and the fourth transition inclined surface 222 are all 5.8 mm. The first transition inclined surface 211, the second transition inclined surface 212, the third transition inclined surface 221 and the fourth transition inclined surface 222 facilitate installation of a screw to lock the cutter body 2.
As shown in fig. 1 to 5, each of the tool bits 3 includes a main rear swept surface 31 and a chip breaker 32; the chip breaker groove 32 is arranged on one side of the cutter head 3 connected with the main rear scanning surface 31; the chip breaker groove 32 is a V-shaped groove which is obliquely arranged towards the tail end of the tool bit 3 and comprises a first inclined surface 321, a circular arc-shaped transition surface 322 and a second inclined surface 323 which are sequentially connected; the arc radius of the arc-shaped transition surface 322 is 0.55-0.6 mm. The utility model discloses a design into V type groove with chip breaker 32, the bits of being convenient for process out are broken more easily, place to twine the bits, and the setting of convex transition face 322 can prevent that the tool bit 3 end is close to simultaneously the part of chip breaker 32 is crowded by the bits and is collapsed.
As shown in fig. 1, 4 and 5, an evacuation surface 33 is provided on the opposite side of the cutter head 3 from the main rear scanning surface 31; the length of the void-avoiding surface 33 is 6.5 mm. The arrangement of the clearance avoiding surface 33 ensures that the rear sweeping knife avoids the contact between the side surface of the rear sweeping knife and a processing workpiece when carrying out back-up processing, and reduces the resistance received by the rear sweeping knife.
As shown in fig. 1, 2 and 5, a rake surface 34 is provided between the main relief surface 31 and the chip breaker 32, and the rake surface 34 is connected to the first inclined surface 321; the intersection line of the front tool face 34 and the main back sweeping surface 31 forms a rough back sweeping cutting edge 36; the included angle between the rough machining rear sweeping cutting edge 36 and the horizontal plane is 60 degrees; the arrangement of the rough machining rear sweeping cutting edge 36 facilitates rough machining of a machined workpiece, improves the durability of the rear sweeping cutter, and prolongs the service life of the rear sweeping cutter.
As shown in fig. 1, 2 and 5, the tip end of the cutting head 2 is provided with a sub back surface 35, the sub back surface 35 is connected with the rake surface 34, and a finishing back sweeping edge 37 is formed at the connection part of the sub back surface 35 and the rake surface 34; the angle between the fine machining back sweeping cutting edge 37 and the horizontal plane is 15 degrees. The arrangement of the fine machining rear sweeping cutting edge 37 is convenient for carrying out fine machining on a machined workpiece when carrying out back turning machining.
The rear sweeping knife of the utility model realizes the rough and fine integrated processing through the rough processing rear sweeping cutting edge 36 and the fine processing rear sweeping cutting edge 37, thereby improving the processing efficiency and the processing quality and saving the processing time; meanwhile, one-knife cutting and multi-knife cutting can be carried out according to actual requirements, the maximum processing depth of the one-knife cutting is 5.7mm, the processing depth of the multi-knife cutting is 6.2mm, and the universal large and small cutting is realized.
As shown in fig. 1, 2 and 5, a cutting edge 38 is provided at a joint between one end of the rake face 34 close to the sub-relief surface 35 and the clearance surface 33, the cutting edge 38 is passivated, and the passivated cutting edge 38 is arc-shaped. The radius of the nose 38 is 0.1mm and the relief angle of the nose is 5 °. The setting of this structure is for the abrasive resistance of reinforcing knife tip 38 department, reduces the cutting thickness of knife tip 38 department, makes the machined surface form under less cutting thickness, is favorable to improving work piece surface finish, improves the heat dissipation condition of knife tip 38 department, reduces wearing and tearing, the extension the utility model discloses a life.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims, and the modifications and changes of the above embodiments can be made by those skilled in the art in light of the disclosure and guidance of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (10)
1. The large-cutting-depth double-hole double-head rear sweeping knife is characterized by comprising a rear sweeping knife body, wherein the rear sweeping knife body comprises a knife body and two knife heads respectively arranged at the upper end and the lower end of the knife body;
the cutter body is provided with a first mounting hole and a second mounting hole for fixing the cutter body; the first mounting hole and the second mounting hole penetrate through the front side and the rear side of the cutter body along the horizontal direction; the first mounting hole and the second mounting hole are arranged on the cutter body in an up-down manner;
each cutter head comprises a main rear sweeping surface and a chip breaker groove; the chip breaker groove is arranged on one side of the cutter head connected with the main rear scanning surface; the chip breaker groove is a V-shaped groove which is obliquely arranged and comprises a first inclined surface, a circular arc-shaped transition surface and a second inclined surface which are sequentially connected;
an air avoiding surface is arranged on one side of the cutter head opposite to the main rear sweeping surface;
a front cutter face is arranged between the main rear sweeping surface and the chip breaker groove and is connected with the first inclined surface; the intersection line of the front cutter face and the main back sweeping face forms a rough rear sweeping cutting edge;
the tail end of the cutter head is provided with an auxiliary rear scanning surface, the auxiliary rear scanning surface is connected with the front cutter surface, and a fine-machining rear scanning cutting edge is formed at the connection position of the auxiliary rear scanning surface and the front cutter surface; and a cutter point is arranged at the joint of one end of the front cutter surface, which is close to the auxiliary rear sweeping surface, and the clearance avoiding surface, and is in an arc shape.
2. The large-cutting-depth double-hole double-head back sweeping knife as claimed in claim 1, wherein the length of the back sweeping knife body is 34mm, the width of the back sweeping knife body is 8mm, and the thickness of the back sweeping knife body is 4 mm.
3. The large-cutting-depth double-hole double-head rear sweeping knife according to claim 1, wherein the first mounting hole and the second mounting hole are circular holes and are consistent in size; the diameters of the first mounting hole and the second mounting hole are both 4.6 mm; the vertical distance between the circle center of the first mounting hole and the circle center of the second mounting hole is 11.5 mm.
4. The large-cutting-depth double-hole double-head rear sweeping knife as claimed in claim 3, wherein the joints of the first mounting hole and the front side surface and the rear side surface of the knife body are respectively provided with a first transition inclined surface and a second transition inclined surface.
5. The large-cutting-depth double-hole double-head rear sweeping knife as claimed in claim 4, wherein the joints of the second mounting hole and the front side surface and the rear side surface of the knife body are respectively provided with a third transition inclined surface and a fourth transition inclined surface.
6. The large-cutting-depth double-hole double-head rear sweeping knife according to claim 5, wherein the first transition inclined surface and the third transition inclined surface are the same in size; the second transition inclined plane and the fourth transition inclined plane are consistent in size; the maximum diameters of the first transition inclined plane, the second transition inclined plane, the third transition inclined plane and the fourth transition inclined plane are all 5.8 mm.
7. A large cutting depth double hole double head back sweep as defined in claim 1 wherein said clearance surface is 6.5mm in length.
8. The large-cutting-depth double-hole double-head rear sweeping knife according to claim 1, wherein the included angle between the rough machining rear sweeping cutting edge and the horizontal plane is 60 degrees; and the included angle between the fine-machined sweeping cutting edge and the horizontal plane is 15 degrees.
9. The large-cutting-depth double-hole double-head rear sweeping knife according to claim 1, wherein the arc radius of the arc-shaped transition surface is 0.55-0.6 mm.
10. The large-cutting-depth double-hole double-head rear sweeping knife according to claim 1, wherein the radius of the knife point is 0.1mm, and the back angle of the knife point is 5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021007079.8U CN212350401U (en) | 2020-06-04 | 2020-06-04 | Big-cutting-depth double-hole double-head rear sweeping knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021007079.8U CN212350401U (en) | 2020-06-04 | 2020-06-04 | Big-cutting-depth double-hole double-head rear sweeping knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212350401U true CN212350401U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021007079.8U Active CN212350401U (en) | 2020-06-04 | 2020-06-04 | Big-cutting-depth double-hole double-head rear sweeping knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212350401U (en) |
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2020
- 2020-06-04 CN CN202021007079.8U patent/CN212350401U/en active Active
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