High-precision thread milling cutter convenient to install and based on aero-engine
Technical Field
The utility model relates to a thread milling cutter specifically is a high accuracy thread milling cutter based on aeroengine is with being convenient for installation belongs to milling cutter technical field.
Background
The traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. With the development of numerical control machining technology, particularly the appearance of a three-axis linkage numerical control machining system, a more advanced thread machining mode, namely, the numerical control milling of threads, is realized. Compared with the traditional thread machining mode, the thread milling machining has great advantages in the aspects of machining precision and machining efficiency, the machining is not limited by a thread structure and a thread turning direction, and the existing thread milling cutter is widely applied in the aviation industry.
The existing thread milling cutter has some problems when in use:
1) The existing thread milling cutter has the advantages that the cutter head and the cutter bar are generally designed integrally, when the cutter head is seriously abraded, the cutter head needs to be replaced, the existing replacement mode is to replace the whole cutter, the use cost is increased, and the existing milling cutter lacks a necessary positioning device, so that disorder is easy to occur during milling;
2) When being connected with the lathe, current thread milling cutter steps are loaded down with trivial details, and the installation effectiveness is low, and the sweeps that produce when current milling cutter mills moreover all piles up on the work piece surface, influences milling cutter and mills the progress.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high accuracy thread milling cutter based on aeroengine is convenient for install in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose: comprises that
The upper end of the cutter bar is fixedly provided with a connector, and a clamping groove is formed in one side of the cutter bar, so that the milling cutter can be conveniently connected with a machine tool through the connector and the clamping groove;
a cutter head mounted at the lower end of the cutter bar;
the cutting edge, it is provided with three groups, and it installs respectively the outside of tool bit, through setting up three groups of cutting edges, can improve and mill efficiency.
As a further aspect of the present invention: the center of the lower end of the cutter head is fixedly provided with a centering device.
As the utility model discloses further scheme again: locating grooves are symmetrically formed in two sides of the lower end of the cutter bar, and locating blocks matched with the locating grooves are connected to two sides of the upper end of the cutter head.
As the utility model discloses further scheme again: the inside screw hole that all is provided with of both sides lateral wall of cutter arbor and tool bit, and the both sides lateral wall outer wall of cutter arbor and tool bit is provided with the connecting plate, the both sides of connecting plate are provided with the fastening bolt with screw hole matched with, cutter arbor and tool bit are connected through the cooperation between connecting plate, screw hole and the fastening bolt.
As a further aspect of the present invention: the surface winding of tool bit is provided with the chip groove.
As the utility model discloses further scheme again: the cutter bar, the cutter head and the cutting edge are all made of tungsten steel materials, and hard coatings are arranged on the outer sides of the cutter bar, the cutter head and the cutting edge.
As the utility model discloses further scheme again: and a non-slip pad is arranged at the joint of the cutter bar and the cutter head.
The utility model has the advantages that:
1) The utility model discloses detachable connection during between tool bit and the cutter arbor, when installing, through the positioning action between constant head tank and the locating piece, can dock cutter arbor and tool bit fast, then connect cutter arbor and tool bit through the cooperation between connecting plate, screw hole and the fastening bolt, the mounting means is simple, provides convenience for the later stage to change the tool bit, and the lower extreme central point at the tool bit puts the fixed centering that is provided with, can when milling, fix a position the work piece, avoid taking place the dislocation, improve and mill the accuracy;
2) The utility model discloses in be provided with the chip groove through the surface winding at the tool bit, can clear up the sweeps that mill the production, avoid it to pile up at workpiece surface, cause the influence to the precision of thread machining, all adopt the wolfram steel material to make at cutter arbor, tool bit and cutting edge in addition, can improve this milling cutter's hardness, and then improve its life to be provided with the slipmat in the junction of cutter arbor and tool bit, can reduce the wearing and tearing between cutter arbor and the tool bit, practice thrift use cost.
Drawings
FIG. 1 is a schematic view of the high-precision thread milling cutter of the present invention;
FIG. 2 is a schematic view of the disassembly structure of the high-precision thread milling cutter of the present invention;
fig. 3 is the utility model discloses the high accuracy thread milling cutter tool bit overlooks the structure sketch map.
In the figure: 1. the tool comprises a tool bar, 2, a connector, 3, a connecting plate, 4, a fastening bolt, 5, a tool bit, 6, a chip groove, 7, a cutting edge, 8, a clamping groove, 9, a threaded hole, 10, a positioning groove, 11, a positioning block, 12, centering, 13, a hard coating, 14 and an anti-slip pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 3, a high-precision thread milling cutter for aircraft engine includes
The milling cutter comprises a cutter bar 1, a connecting head 2 is fixedly arranged at the upper end of the cutter bar 1, a clamping groove 8 is formed in one side of the cutter bar, and the milling cutter and a machine tool can be conveniently connected by arranging the connecting head 2 and the clamping groove 8;
a cutter head 5 mounted on the lower end of the cutter bar 1;
the cutting edges 7 are provided with three groups and are respectively arranged on the outer side of the cutter head 5, and the milling efficiency can be improved by arranging the three groups of cutting edges 7.
The embodiment of the utility model provides an in, the fixed centering 12 that is provided with of lower extreme central point of tool bit 5 can be when milling, fixes a position the work piece, avoids taking place the dislocation, improves and mills the accuracy.
The embodiment of the utility model provides an in, constant head tank 10 has been seted up to the lower extreme bilateral symmetry of cutter arbor 1, and the upper end both sides of tool bit 5 be connected with constant head tank 10 matched with locating piece 11, through the positioning action between constant head tank 10 and the locating piece 11, can dock cutter arbor 1 and tool bit 5 fast.
The embodiment of the utility model provides an in, the inside screw hole 9 that all is provided with of both sides lateral wall of cutter arbor 1 and tool bit 5, and the both sides lateral wall outer wall of cutter arbor 1 and tool bit 5 is provided with connecting plate 3, the both sides of connecting plate 3 are provided with fastening bolt 4 with screw hole 9 matched with, cutter arbor 1 and tool bit 5 are connected through the cooperation between connecting plate 3, screw hole 9 and the fastening bolt 4, and the mounting means is simple, provides convenience for later stage change tool bit 5.
Example two
Referring to fig. 1 to 3, a high-precision thread milling cutter for aircraft engine includes
The milling cutter comprises a cutter bar 1, a connecting head 2 is fixedly arranged at the upper end of the cutter bar 1, a clamping groove 8 is formed in one side of the cutter bar, and the milling cutter and a machine tool can be conveniently connected by arranging the connecting head 2 and the clamping groove 8;
a cutter head 5 mounted on the lower end of the cutter bar 1;
the cutting edges 7 are provided with three groups and are respectively arranged on the outer side of the cutter head 5, and the milling efficiency can be improved by arranging the three groups of cutting edges 7.
The embodiment of the utility model provides an in, the surface winding of tool bit 5 is provided with chip groove 6, can clear up the sweeps that mills the production, avoids it to pile up at the work piece surface, causes the influence to the precision of screw thread processing.
The embodiment of the utility model provides an in, cutter arbor 1, tool bit 5 and cutting edge 7 all adopt the wolfram steel material to make, and its outside all is provided with hard coating 13, can improve this milling cutter's hardness, and then improve its life.
The embodiment of the utility model provides an in, the junction of cutter arbor 1 and tool bit 5 is provided with slipmat 14, can reduce the wearing and tearing between cutter arbor 1 and the tool bit 5, practices thrift use cost.
The working principle is as follows: when using this kind of high accuracy thread milling cutter based on installation of being convenient for aeroengine, at first assemble this thread milling cutter, carry out quick butt joint with cutter arbor 1 and tool bit 5 through the positioning action between constant head tank 10 and the locating piece 11, then utilize connecting plate 3, screw hole 9 and fastening bolt 4 between the cooperation connect, the mounting means is simple, simultaneously when tool bit 5 wearing and tearing are serious, it is also more convenient to change, when milling, through the centering 12 that sets up, can be when milling, fix a position the work piece, avoid taking place the dislocation, improve and mill the accuracy, the sweeps that mills the production can be cleared up through chip groove 6, avoid it to pile up on the work piece surface, cause the influence to the precision of thread processing, and cutter arbor 1, tool bit 5 and cutting edge 7 all adopt the tungsten steel material to make, its outside all is provided with stereoplasm coating 13, can improve this milling cutter's hardness, and then improve its life.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.