CN210451129U

CN210451129U - Tungsten steel single-edge key milling cutter

Info

Publication number: CN210451129U
Application number: CN201921516050.XU
Authority: CN
Inventors: 钱洪良
Original assignee: Zhangjiagang Ruizheng Tool Co ltd
Current assignee: Zhangjiagang Ruizheng Tool Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-05-05
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a tungsten steel single-edge key milling cutter in the technical field of key milling cutters, which comprises a cutter body, a frustum connecting part and a cutter head, wherein the cutter body and the cutter head are cylindrical, the diameter of the cutter body is larger than that of the cutter head, the frustum connecting part is positioned between the cutter body and the cutter head, the cutter body, the frustum connecting part and the cutter head are of an integrally formed structure, the diameter of one end of the frustum connecting part is equal to that of the cutter body, the diameter of the other end of the frustum connecting part is equal to that of the cutter head, a spiral groove is arranged on the surface of the cutter head, one side of the spiral groove is a cutter edge, a polishing tooth surface which has the same rotating direction as the spiral groove is also arranged on the surface of the cutter head, a second discharge groove is arranged on the surface of the frustum connecting part, the tungsten steel single-edge key milling cutter has a simple structure, can be installed through three installation modes, is, has higher degree of finish, and is beneficial to the processing of keys.

Description

Tungsten steel single-edge key milling cutter

Technical Field

The utility model relates to a key milling cutter technical field specifically is a tungsten steel single-blade key milling cutter.

Background

The key is a common unlocking tool in people's life, and the material of making the key mainly is copper, zinc, aluminium, iron and other metals, and the key is various, has ordinary key, intelligent key, remote control key, electron key etc..

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

Need use single-blade milling cutter to process the key work piece when key preparation or key duplication, but the chip groove of traditional single-blade milling cutter is vertical constant diameter spiral for take the bits to be difficult to discharge, add man-hour, have burr and mar on the wall of slot, influence the pleasing to the eye of key, traditional single-blade milling cutter's mounting means is comparatively single in addition, is unfavorable for the processing of key, can not satisfy the requirement of processing.

Based on this, the utility model designs a specifically be a tungsten steel single-blade key milling cutter to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tungsten steel single-blade key milling cutter to solve traditional single-blade milling cutter's that proposes in the above-mentioned background art chip groove and be vertical isometric spiral, make the expense bits be difficult to discharge, add man-hour, have burr and mar on the wall of slot, influence the pleasing to the eye of key, traditional single-blade milling cutter's comparatively single problem of mounting means in addition.

In order to achieve the above object, the utility model provides a following technical scheme: a tungsten steel single-edge key milling cutter comprises a cutter body, a frustum connecting part and a cutter head, wherein the cutter body and the cutter head are cylindrical, the diameter of the cutter body is larger than that of the cutter head, the frustum connecting part is located between the cutter body and the cutter head, the cutter body, the frustum connecting part and the cutter head are of an integrally formed structure, the diameter of one end of the frustum connecting part is equal to that of the cutter body, the diameter of the other end of the frustum connecting part is equal to that of the cutter head, a spiral groove is formed in the surface of the cutter head, a cutting edge is arranged on one side of the spiral groove, a polishing tooth surface which is the same as the spiral groove in the rotating direction of the spiral groove is further arranged on the surface of the cutter head, a second discharging groove is formed in the surface of the frustum connecting part, one end of the second discharging groove is communicated with the spiral groove; the surface of the end, far away from the frustum connecting part, of the cutter body is provided with a straight surface and is provided with at least two mounting holes along the radial direction.

Preferably, the polishing tooth surface is composed of a plurality of square blocks, the surfaces of the square blocks are rough, and a gap is reserved between every two adjacent square blocks.

Preferably, the connection part of the second discharging groove, the first discharging groove and the spiral groove is smooth.

Preferably, the spiral angle of the spiral groove is 15 to 30 °.

Preferably, the spiral angle of the spiral groove is 25 °.

Preferably, the volume of the spiral groove is 30% -50% of the volume of the cutter head.

Preferably, the volume of the spiral groove is 40% of the volume of the cutter head.

Preferably, the number of the straight surfaces is four, and the four straight surfaces are uniformly arranged on the surface of the knife body.

Preferably, the number of mounting holes is three, and three mounting holes are evenly distributed along the axial direction of the cutter body, and the mounting holes are located on the straight surface.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a cutting edge sets up the slot on the key work piece, and the piece that mills moves along the helicla flute, when removing to second row of silo in, utilizes the gradient of second row of silo for the piece outwards moves, and when the piece was more, the piece on the second row of silo recycles first row of silo and carries out the chip removal to guarantee that the piece can break away from the tool bit completely; the cutting edge polishes the wall of the groove, removes burrs and scratches on a machined part and ensures that a key workpiece has higher finish; the milling cutter is cylindrical, can be mounted through the spring chuck, can be mounted through the four-jaw chuck by utilizing the flat surface, and can be fixed through the shaft pin and the bolt by utilizing the mounting hole, so that the milling cutter can be mounted through three mounting modes, the application range of the milling cutter is enlarged, and the mounting is convenient for a user; this tungsten steel single-blade key milling cutter simple structure can install through three kinds of mounting means, and the person of facilitating the use operates, adds the easier bits of spending of processing and discharges, and the key burr and the mar of processing out have more less, have higher finish, are favorable to the processing of key.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic top view of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a blade body; 11. a first discharging groove; 12. flat surface; 13. mounting holes; 2. a frustum connecting part; 21. a second discharge chute; 3. a cutter head; 31. a helical groove; 32. a blade; 33. and (5) polishing the tooth surface.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a tungsten steel single-edge key milling cutter comprises a cutter body 1, a frustum connecting part 2 and a cutter head 3, wherein the cutter body 1, the frustum connecting part 2 and the cutter head 3 are of an integrally formed structure and are made of tungsten steel, the cutter body 1 and the cutter head 3 are both cylindrical, the diameter of the cutter body 1 is larger than that of the cutter head 3, specifically, the diameter of the cutter body 1 is 15mm, the diameter of the cutter head 3 is 8mm, the frustum connecting part 2 is located between the cutter body 1 and the cutter head 3, the diameter of one end of the frustum connecting part 2 is equal to that of the cutter body 1, the diameter of the other end of the frustum connecting part is equal to that of the cutter head 3, a spiral groove 31 is formed in the surface of the cutter head 3, the spiral angle of the spiral groove 31 is 25 degrees, the volume of the spiral groove 31 is 40 percent of the volume of the cutter head 3, the volume of chip removal on the cutter head 3 is increased by setting the volume of the, and then let the piece discharge more easily, and one side of the helical groove 31 is the cutting edge 32, the surface of the tool bit 3 also has the same direction of rotation as the helical groove 31 to polish the flank 33, polish the flank 33 and have a plurality of square block group, the surface of the square block is rough, and leave the interval between two adjacent square blocks, through polishing the setting of the flank 33, when the tool bit 3 rotates, the cutting edge 32 polishes the wall of the slot when processing the slot on the key work piece, remove the burr and scratch of the processing position, guarantee the key work piece has higher smooth finish, the surface of the frustum connecting portion 2 offers the second discharge chute 21, one end of the second discharge chute 21 communicates with helical groove 31, the surface of the blade 1 near one end of the frustum connecting portion 2 offers the first discharge chute 11 communicating with another end of the second discharge chute 21, wherein the second discharge chute 21 spirals along the surface of the frustum connecting portion 2, the first discharging groove 11, the second discharging groove 21 and the spiral groove 31 have the same rotating direction, when the key workpiece is machined by the cutting edge 32, milled chips move along the spiral groove 31, when the key workpiece moves into the second discharging groove 21, the chips move outwards by utilizing the gradient of the second discharging groove 21, when the chips are more, the chips on the second discharging groove 21 are discharged by utilizing the first discharging groove 11 again to discharge the chips so as to ensure that the chips can be completely separated from the tool bit 3, the joint of the second discharging groove 21, the first discharging groove 11 and the spiral groove 31 is smooth, and the chips can be discharged more easily by smooth processing at the joint; the surface that frustum connecting portion 2 one end was kept away from to blade 1 is equipped with four straight faces 12, and along radially seting up quantity at least for three mounting hole 13, and four 14 are evenly setting up on the surface of blade 1, three mounting hole 13 is evenly distributed along the axial of blade 1, and mounting hole 13 is located straight face 12, setting through straight face 12 and mounting hole 13, this milling cutter itself is cylindrical, can install through collet chuck, utilize straight face 12 to make this milling cutter can install through four-jaw chuck, utilize mounting hole 13 to make this milling cutter can fix through pivot and bolt, and then let this milling cutter can install through three kinds of mounting means, the range of application of this milling cutter has been increased, the person of facilitating the use operates.

One specific application of this embodiment is: when the milling cutter is installed, the milling cutter is cylindrical and can be installed through a spring chuck, the milling cutter can be installed through a four-jaw chuck by utilizing the flat surface 12, the milling cutter can be fixed through a shaft pin and a bolt by utilizing the installation hole 13, so that the milling cutter can be installed through three installation modes, the application range of the milling cutter is enlarged, the milling cutter is convenient for a user to install, the milling cutter is installed on a milling lathe, then a driving motor on the milling lathe is started to drive the milling cutter to rotate on a key workpiece, a groove is formed on the key workpiece by the cutting edge 32, milled chips move along the spiral groove 31, when the milled chips move into the second discharge groove 21, the chips move outwards by utilizing the inclination of the second discharge groove 21, when more chips exist, the chips on the second discharge groove 21 are discharged by utilizing the first discharge groove 11 to ensure that the chips can be completely separated from the cutter head 3, in addition, the blade 32 polishes the wall of the groove to remove burrs and scratches on the machined part, and ensures that the key workpiece has high smoothness.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a tungsten steel single-edge key milling cutter, includes blade (1) and tool bit (3), its characterized in that: blade (1) and tool bit (3) are cylindrically, and the diameter of blade (1) is greater than the diameter of tool bit (3), still be equipped with frustum connecting portion (2) between blade (1) and tool bit (3), and blade (1), frustum connecting portion (2) and tool bit (3) be the integrated into one piece structure, the diameter of frustum connecting portion (2) one end equals with blade (1), the diameter of the other end equals with tool bit (3), helicla flute (31) has been seted up on the surface of tool bit (3), and one side of helicla flute (31) is cutting edge (32), the surface of tool bit (3) still is equipped with and revolves to the same flank of tooth (33) of polishing with helicla flute (31), second row material groove (21) has been seted up on the surface of frustum connecting portion (2), the one end and helicla flute (31) intercommunication are arranged to the second, blade (1) is close to the surface of arranging material connecting portion (2) one end and has been seted up with second groove (21) the other end A first discharge groove (11) communicated with the first discharge groove; the surface of one end of the cutter body (1) far away from the frustum connecting part (2) is provided with a flat surface (12) and is provided with at least two mounting holes (13) along the radial direction.

2. A tungsten steel single-edge key milling cutter as claimed in claim 1, wherein: the polishing tooth surface (33) is composed of a plurality of square blocks, the surfaces of the square blocks are rough, and a gap is reserved between every two adjacent square blocks.

3. A tungsten steel single-edge key milling cutter as claimed in claim 2, wherein: the connecting part of the second discharging groove (21), the first discharging groove (11) and the spiral groove (31) is smooth.

4. A tungsten steel single-edge key milling cutter as claimed in claim 3, wherein: the spiral angle of the spiral groove (31) is 15-30 degrees.

5. The tungsten steel single-edge key milling cutter as claimed in claim 4, wherein: the spiral angle of the spiral groove (31) is 25 degrees.

6. The tungsten steel single-edge key milling cutter as claimed in claim 4, wherein: the volume of the spiral groove (31) is 30-50% of the volume of the tool bit (3).

7. The tungsten steel single-edge key mill as claimed in claim 6, wherein: the volume of the spiral groove (31) is 40% of the volume of the tool bit (3).

8. The tungsten steel single-edge key mill as claimed in claim 6, wherein: the number of the straight surfaces (12) is four, and the four straight surfaces (14) are uniformly arranged on the surface of the knife body (1).

9. A tungsten steel single-edge key milling cutter as claimed in claim 8, wherein: the quantity of mounting hole (13) is three, and three mounting hole (13) are evenly distributed along the axial of blade (1), and mounting hole (13) are located flat plane (12).