CN214640513U - Composite milling cutter - Google Patents
Composite milling cutter Download PDFInfo
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- CN214640513U CN214640513U CN202120661786.7U CN202120661786U CN214640513U CN 214640513 U CN214640513 U CN 214640513U CN 202120661786 U CN202120661786 U CN 202120661786U CN 214640513 U CN214640513 U CN 214640513U
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- cutter
- milling cutter
- cutting edge
- milling
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Abstract
The utility model provides a composite milling cutter, the side surface of a cutter head is provided with at least two cutter grooves, and a milling cutter and a reticulate pattern cutter are respectively arranged in the cutter grooves; the milling cutter comprises milling cutter heads, and the heights of the upper end surfaces of any one of the milling cutter heads are consistent; the reticulation cutter comprises a reticulation cutter head, and the upper end surface of the reticulation cutter head is higher than the upper end surface of the milling cutter head; the intersection line of the front cutter face and the main rear cutter face on the same cutter head forms a main cutting edge, the intersection line of the front cutter face and the auxiliary rear cutter face on the same cutter head forms an auxiliary cutting edge, and the included angle formed by the main cutting edge and the auxiliary cutting edge on the milling cutter head is larger than the included angle formed by the main cutting edge and the auxiliary cutting edge on the reticulate cutter head. The utility model provides a rough machining and finish machining twice production processes can be accomplished to compound milling cutter, one-time processing, effectively improves machining efficiency and machining precision, can prevent simultaneously that shock resistance is more weak reticulation sword by overuse and damage, guarantee the life of reticulation sword.
Description
Technical Field
The utility model relates to a milling cutter technical field, in particular to compound milling cutter.
Background
The reason why the mutual combination of parts is often required in the mechanical industry, for example, the combination surface of a variable shell and an off-shell in a car transmission occasionally has oil leakage fault is that the combination surface of the transmission shell and the clutch shell has certain shape errors, and the combination part needs to be filled with sealant in order to ensure the sealing property of the transmission.
In order to increase the adhesion effect of the casing joint surface to the sealant, in the prior art, the casing joint surface is generally processed into a textured surface, and the textured surface can store a small amount of sealant on one hand, increase the adhesion area of the sealant on the other hand, and further improve the adhesion of the sealant, so that the good sealing performance of the gearbox casing joint surface and the clutch casing joint surface is ensured, and the problem of oil leakage of the joint surface is solved.
However, in the prior art, when the joint surface of the shell is machined, firstly, a milling cutter with strong impact resistance is used for rough machining to cut a large margin, and then, a reticulate pattern cutter is used for finish machining to form reticulate patterns.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a compound milling cutter to a rough machining and finish machining twice process can be accomplished in one shot forming, machining efficiency and machining precision are improved.
A composite milling cutter comprises a cutter head, a milling cutter and a reticulate pattern cutter;
the side surface of the cutter head is provided with at least two cutter grooves, the milling cutter and the reticulate pattern cutter are respectively arranged in the cutter grooves, and the cutter grooves are internally provided with adjusting mechanisms which are used for fixedly adjusting the milling cutter and the reticulate pattern cutter;
the milling cutter comprises milling cutter heads, and the heights of the upper end surfaces of any one of the milling cutter heads are consistent;
the reticulate pattern cutter comprises a reticulate pattern cutter head, and the upper end face of the reticulate pattern cutter head is higher than the upper end face of the milling cutter head;
milling cutter head with the reticulation tool bit all includes rake face, main back knife face and vice back knife face, and is same on the tool bit the rake face with the intersection line of main back knife face constitutes main cutting edge, and is same on the tool bit the rake face with the intersection line of vice back knife face constitutes vice cutting edge, milling cutter head is last main cutting edge is greater than with the contained angle that vice cutting edge formed on the reticulation tool bit main cutting edge is greater than with the contained angle that vice cutting edge formed.
According to the composite milling cutter, the milling cutter and the reticulate pattern cutter are installed on the cutter head in a unified mode, two machining processes of rough machining and finish machining can be completed through one-time machining, the production process is simplified, the production efficiency is greatly improved, meanwhile, the upper end face of the reticulate pattern cutter is higher than that of the milling cutter, the included angle formed by the main cutting edge and the auxiliary cutting edge of the milling cutter is larger than that formed by the main cutting edge and the auxiliary cutting edge of the reticulate pattern cutter, the milling cutter can feed and cut large allowance firstly, then the reticulate pattern cutter which follows in the process carries out finish machining on reticulate patterns, the machined reticulate pattern depth is guaranteed to be uniform through one-time machining forming, the machining precision is effectively improved, meanwhile, the reticulate pattern cutter is prevented from being used in a transitional mode, and the service life of the reticulate pattern cutter is guaranteed.
Furthermore, the distance from the milling cutter head to the center of the cutter head is 0.5-2mm greater than the distance from the reticulate pattern cutter head to the center of the cutter head.
Furthermore, the adjusting mechanism comprises a tightening screw and an adjusting nut, the tightening screw is used for fixing the milling cutter or the mesh cutter, and the adjusting nut is used for adjusting the height of the milling cutter or the mesh cutter.
Furthermore, mounting holes are formed in the middle of the milling cutter and the middle of the mesh cutter, the mounting holes are oval, and the long diameter of each oval mounting hole is 2-5mm higher than the diameter of the tightening screw.
Furthermore, a compression bolt is arranged at the center of the cutter head and is used for fixedly mounting the cutter head on the cutter handle.
Furthermore, an arc knife point is arranged at the intersection of the main cutting edge and the auxiliary cutting edge, and the radius range of the arc knife point is 0.2-0.6 mm.
Furthermore, the included angle formed by the main cutting edge and the auxiliary cutting edge on the milling cutter head is 90 degrees0-1200The included angle formed by the main cutting edge and the auxiliary cutting edge on the reticulate pattern cutter head is 75 degrees0-1050。
Further, the number of the milling cutters is at least 5, and the number of the net grain cutters is at least 1.
Furthermore, the milling cutter and the mesh cutter are made of PCD materials, and the cutter head is made of hard alloy materials.
Drawings
Fig. 1 is an exploded schematic view of a composite milling cutter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a compound milling cutter according to an embodiment of the present invention;
FIG. 3 is a schematic view of the milling cutter head of FIG. 1;
FIG. 4 is a schematic view of the construction of the screen head of FIG. 1;
fig. 5 is a schematic structural view of the rake surface, the main relief surface, and the sub relief surface in fig. 1.
Description of the main element symbols:
| |
100 | |
10 |
| |
20 | |
30 |
| Knife |
40 | |
201 |
| Reticulate |
301 | |
101 |
| Main |
102 | |
103 |
| |
104 | |
105 |
| |
50 | Knife |
106 |
| |
60 | Adjusting |
70 |
| |
80 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
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 in the description of the invention herein 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.
Referring to fig. 1 to 5, a composite milling cutter 100 according to an embodiment of the present invention is shown, including a cutter head 10, a milling cutter 20, and a cross-hatch cutter 30;
the side surface of the cutter head 10 is provided with at least two cutter grooves 40, the milling cutter 20 and the reticulation cutter 30 are respectively arranged in the cutter grooves 40, the cutter grooves 40 are internally provided with an adjusting mechanism, the adjusting mechanism is used for fixedly adjusting the milling cutter 20 and the reticulation cutter 30, in the embodiment, the side surface of the cutter head 10 is provided with eight cutter grooves 40, seven cutter grooves 40 are used for installing the milling cutter 20, and one cutter groove 40 is used for installing the reticulation cutter 30;
the milling cutter 20 comprises milling cutter heads 201, and the heights of the upper end surfaces of any one of the milling cutter heads 201 are consistent;
the net knife 30 comprises a net knife head 301, the upper end surface of the net knife head 301 is higher than the upper end surface of the milling knife head 201, in this embodiment, the upper end surface of the net knife head 301 is higher than the upper end surface of the milling knife head 201 by 0.009mm, namely, the net depth obtained by processing is 0.009mm, which can be understood;
the milling cutter head 201 and the reticulation cutter head 301 respectively comprise a rake face 101, a main flank face 102 and an auxiliary flank face 103, the intersection line of the rake face 101 and the main flank face 102 on the same cutter head forms a main cutting edge 104, the intersection line of the rake face 101 and the auxiliary flank face 103 on the same cutter head forms an auxiliary cutting edge 105, and the included angle formed by the main cutting edge 104 and the auxiliary cutting edge 105 on the milling cutter head 201 is larger than the included angle formed by the main cutting edge 104 and the auxiliary cutting edge 105 on the reticulation cutter head 301.
According to the composite milling cutter 100, the milling cutter 20 and the reticulate pattern cutter are integrally installed on the cutter head 10, two machining processes of rough machining and finish machining can be completed through one-time machining, the production process is simplified, the production efficiency is greatly improved, meanwhile, the upper end face of the reticulate pattern cutter 30 is higher than that of the milling cutter 20, the included angle formed by the main cutting edge 104 and the auxiliary cutting edge 105 of the milling cutter 20 is larger than that formed by the main cutting edge 104 and the auxiliary cutting edge 105 of the reticulate pattern cutter 30, the milling cutter 20 can firstly feed and cut large allowance, then, the following reticulate pattern cutter 30 performs finish machining on reticulate patterns, one-time machining and forming ensures that the machined reticulate patterns are uniform in depth, the machining precision is effectively improved, meanwhile, the reticulate pattern cutter 30 is prevented from being used in a transition mode, and the service life of the reticulate pattern cutter 30 is guaranteed.
Further, the number of the milling cutters 20 is at least 5, the number of the reticulation cutters 30 is at least 1, in the embodiment, seven milling cutters 20 and one reticulation cutter 30 are mounted on the cutter head 10, and meanwhile, the rotating speed of the machine tool is set to 15000 r/min, so that reticulation machining can be completed efficiently.
It can be understood that the center of blade disc 10 is equipped with clamp bolt 50, and clamp bolt 50 is used for with blade disc 10 fixed mounting on the handle of a knife, through setting up clamp bolt 50, can realize installing blade disc 10 fast on the handle of a knife, convenient to detach simultaneously to improve work efficiency.
Further, the distance from the milling cutter head 201 to the center of the cutter disc 10 is 0.5-2mm greater than the distance from the reticulate pattern cutter head 301 to the center of the cutter disc 10, in this embodiment, the distance from the milling cutter head 201 to the center of the cutter disc 10 is 1mm greater than the distance from the reticulate pattern cutter head 301 to the center of the cutter disc 10, so that the rotation radius of the milling cutter 20 is 1mm greater than the rotation radius of the reticulate pattern cutter 30, it is further ensured that the milling cutter 20 performs cutting for a large margin first during machining, and the reticulate pattern cutter 30 does not participate in cutting for the large margin, and is specially used for cutting reticulate patterns, so that the service life of the cutter is effectively prolonged, it can be understood that when the distance difference between the milling cutter head 201 and the reticulate pattern cutter head 301 to the center of the cutter disc 10 is less than 0.5mm, the reticulate pattern cutter 30 participates in cutting for a part of the margin, and affects the service life of the reticulate pattern cutter 30; when the difference between the distances of the milling cutter head 201 and the reticulation cutter head 301 to the center of the cutter disc 10 is higher than 2mm, the milling cutter 20 is easily damaged.
In particular, the angle formed by the main cutting edge 104 and the minor cutting edge 105 of the milling cutter head 201 is 90 degrees0-1200The angle formed by the main cutting edge 104 and the minor cutting edge 105 of the screen head 301 is 750-1050In the present embodiment, the included angle formed by the main cutting edge 104 and the minor cutting edge 105 of the milling cutter head 201 is 100 degrees0The milling insert 201 has an orthogonal face angle of 5 to the work piece0The angle formed by the main cutting edge 104 and the secondary cutting edge 105 of the screen head 301 is 90 degrees0The cross-plane angle of the screen tip 301 to the work piece is 150When in machining, the main cutting edge 104 bears the main cutting task, the secondary cutting edge 105 participates in part of the cutting task, meanwhile, the milling cutter head 201 has the polishing function in the cutting process, the flatness of the reticulate cutter head 301 before feeding machining is ensured, and the milling cutter head 201 playing a role in machining large allowance can be understood, and the included angle between the main cutting edge 104 and the secondary cutting edge 105 of the milling cutter head is larger than 90 DEG0But if it exceeds 1200The cutting edge is easily worn; the textured cutting tip 301 is used for texturing if the included angle between the main cutting edge 104 and the minor cutting edge 105 is less than 750Or above 1050And the wear is easy to occur when the reticulate pattern is processed, and the service life is influenced.
It can be understood that, because the edge 106 portion of the cutting tool has poor strength and is easy to break, in order to increase the strength and wear resistance of the composite milling cutter 100, the arc edge 106 is provided at the intersection of the main cutting edge 104 and the secondary cutting edge 105, the radius of the arc edge 106 ranges from 0.2 mm to 0.6mm, in this embodiment, the radius of the arc edge 106 is set to 0.4mm, and by providing the arc transition edge 106 of 0.4mm, the strength of the edge 106 portion is effectively increased, and the occurrence of breaking during machining is prevented.
In the present embodiment, the adjusting mechanism includes a tightening screw 60 and an adjusting nut 70, the tightening screw 60 is used for fixing the milling cutter 20 or the net-work cutter 30, and the adjusting nut 70 is used for adjusting the height of the milling cutter 20 or the net-work cutter 30.
Further, the middle parts of the milling cutter 20 and the reticulation cutter 30 are respectively provided with a mounting hole 80, the mounting holes 80 are in an oval shape, the long diameter of each oval mounting hole 80 is 2-5mm higher than the diameter of the tightening screw 60, the tightening screw 60 sequentially penetrates through the mounting holes 80 in the middle parts of the milling cutter 20 or the reticulation cutter 30 and the threaded holes in the cutter groove 40, so that the milling cutter 20 and the reticulation cutter 30 are mounted in the cutter groove 40, in this embodiment, the oblong mounting hole 80 has a major diameter 3mm greater than the diameter of the tightening screw 60, and the adjusting nut 70 is installed at the end of the milling cutter 20 and the knurling cutter 30, the adjusting nut 70 is a hexagonal nut, and each side is provided with a through hole, by rotating the hexagonal nut, the height of the milling cutter 20 or the knurling cutter 30 can be precisely adjusted, and, of course, since the oblong diameter of the oval mounting hole 80 provided in this embodiment is 3mm larger than the diameter of the tightening screw 60, the height range that can be adjusted is 3 mm.
Preferably, the milling cutter 20 and the mesh cutter 30 are made of PCD, and the cutter head 10 is made of cemented carbide, so that the composite milling cutter 100 is durable and has good processing quality.
According to the utility model provides a compound milling cutter 100, through installing milling cutter 20 and reticulation sword on blade disc 10 in unison, rough machining and finish machining twice manufacturing procedure can be accomplished in one shot, the production technology has been simplified, very big improvement production efficiency, simultaneously, the up end of reticulation sword 30 is higher than the up end of milling cutter 20, and the contained angle that main cutting edge 104 on milling cutter 20 and vice cutting edge 105 formed is greater than the contained angle that main cutting edge 104 on reticulation sword 30 and vice cutting edge 105 formed, make milling cutter 20 can feed the cutting big allowance earlier, reticulation sword 30 that follow-up afterwards goes out the reticulation by finish machining again, one shot forming has guaranteed that the reticulation degree of depth that processes out is even, effectively improve the machining precision, avoid reticulation sword 30 to be used excessively simultaneously, the life of reticulation sword 30 has been ensured; by setting the long diameter of the oval mounting hole 80 to be 2-5mm higher than the diameter of the tightening screw 60, the heights of the milling edge and the textured edge can be adjusted by rotating the adjusting nut 70 to obtain textured patterns of different depths; meanwhile, the arc tool nose 106 is designed to increase the strength of the tool and effectively prevent tipping.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. A composite milling cutter comprises a cutter head, a milling cutter and a reticulate pattern cutter, and is characterized in that,
the side surface of the cutter head is provided with at least two cutter grooves, the milling cutter and the reticulate pattern cutter are respectively arranged in the cutter grooves, and the cutter grooves are internally provided with adjusting mechanisms which are used for fixedly adjusting the milling cutter and the reticulate pattern cutter;
the milling cutter comprises milling cutter heads, and the heights of the upper end surfaces of any one of the milling cutter heads are consistent;
the reticulate pattern cutter comprises a reticulate pattern cutter head, and the upper end face of the reticulate pattern cutter head is higher than the upper end face of the milling cutter head;
milling cutter head with the reticulation tool bit all includes rake face, main back knife face and vice back knife face, and is same on the tool bit the rake face with the intersection line of main back knife face constitutes main cutting edge, and is same on the tool bit the rake face with the intersection line of vice back knife face constitutes vice cutting edge, milling cutter head is last main cutting edge is greater than with the contained angle that vice cutting edge formed on the reticulation tool bit main cutting edge is greater than with the contained angle that vice cutting edge formed.
2. The compound milling cutter according to claim 1, wherein the distance of the milling cutter head to the center of the cutter disc is 0.5-2mm greater than the distance of the reticulation cutter head to the center of the cutter disc.
3. The composite milling cutter according to claim 1, wherein the adjustment mechanism includes a tightening screw for fixing the milling cutter or the griffe and an adjustment nut for adjusting a height of the milling cutter or the griffe.
4. The composite milling cutter according to claim 3, wherein the milling cutter and the mesh cutter are each provided at a central portion thereof with a mounting hole having an oval shape, and a major diameter of the mounting hole is 2-5mm higher than a diameter of the tightening screw.
5. The composite milling cutter according to claim 1, wherein the cutter head is centrally provided with a compression bolt for fixedly mounting the cutter head to the shank.
6. The composite milling cutter according to claim 1, wherein the intersection of the primary cutting edge and the secondary cutting edge is provided with a rounded nose having a radius in the range of 0.2-0.6 mm.
7. The composite milling cutter according to claim 1, wherein the angle formed by the major cutting edges and the minor cutting edges on the milling insert is 90 degrees0-1200The included angle formed by the main cutting edge and the auxiliary cutting edge on the reticulate pattern cutter head is 75 degrees0-1050。
8. The composite milling cutter according to claim 1, wherein the number of milling cutters is at least 5 and the number of gritty cutters is at least 1.
9. The composite milling cutter according to claim 1, wherein the milling cutter and the mesh cutter are made of PCD material, and the cutter head is made of hard alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120661786.7U CN214640513U (en) | 2021-03-30 | 2021-03-30 | Composite milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120661786.7U CN214640513U (en) | 2021-03-30 | 2021-03-30 | Composite milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214640513U true CN214640513U (en) | 2021-11-09 |
Family
ID=78458008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120661786.7U Active CN214640513U (en) | 2021-03-30 | 2021-03-30 | Composite milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214640513U (en) |
-
2021
- 2021-03-30 CN CN202120661786.7U patent/CN214640513U/en active Active
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