CN210877749U

CN210877749U - Unequal rake angle end mill

Info

Publication number: CN210877749U
Application number: CN201921488421.8U
Authority: CN
Inventors: 鄂福大; 唐建洋
Original assignee: Changzhou Zhengheyuan Tool Co ltd
Current assignee: Changzhou Zhengheyuan Tool Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-06-30
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an unequal front angle end mill, which comprises a cutter holder, a cutter head and an adjusting mechanism, wherein the cutter holder is fixedly provided with the cutter head at one end, two adjusting mechanisms are fixedly provided at one end of the cutter holder far away from the cutter head, the two adjusting mechanisms have the same specification and are mutually distributed in axial symmetry about the central axis of the cutter holder, an open slot is arranged at one end of the cutter holder far away from the cutter head, a fixed disc is filled in the open slot, the thickness of the fixed disc is equal to the width of the open slot, two phases of the open slot are internally provided with two slots, the central positions of the two slots respectively penetrate through the upper top and the lower bottom of the cutter holder and are provided with cylindrical holes, connecting pipes are embedded and installed in the two cylindrical holes, the unequal front angle end mill is provided with the adjusting mechanism, two, thereby facilitating the matching installation of different installation structures.

Description

Unequal rake angle end mill

Technical Field

The utility model relates to an end mill, in particular to rake angle that varies end mill belongs to milling cutter technical field.

Background

End mills are a very important branch of the milling cutter art, with end mills with unequal rake angles being the most common.

The traditional unequal rake angle end mill always faces the problem of inconvenient installation, because the installation position of the traditional unequal rake angle end mill is fixed and is inconvenient to adapt to the installation of different installation structures, and the unequal rake angle end mill needs to be designed.

Disclosure of Invention

The utility model provides a rake angle end mill varies to solve the problem of mentioning in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a rake angle end mill varies, includes blade holder, milling cutter head and adjustment mechanism, blade holder one end fixed mounting has the milling cutter head, the blade holder is kept away from milling cutter head one end fixed mounting has two adjustment mechanism, two adjustment mechanism specification is unanimous and is axisymmetric distribution about the blade holder axis each other.

As a preferred technical scheme of the utility model, the blade holder is kept away from milling cutter head one end and is seted up the open slot, the open slot intussuseption is filled with the fixed disk, the thickness of fixed disk equals the width of open slot, the double-phase internal cell wall central point of open slot puts and runs through the blade holder top respectively and go to the bottom and seted up the cylinder hole, two the connecting pipe is installed, two to the downthehole equal embedding of cylinder the outer wall of connecting pipe all sets up with the laminating of the hole wall in cylinder hole mutually.

As an optimal technical scheme of the utility model, the annular spacing groove has all been seted up to the central point that goes to the bottom put and put in the top of the going up of blade holder central point, two the annular spacing groove specification is unanimous.

As a preferred technical scheme of the utility model, adjustment mechanism all includes the nut, two the equal fixed mounting in one side in opposite directions of nut has annular locating part, two annular locating part sets up with two annular spacing groove looks adaptations respectively, the nut all rotates the installation in the annular spacing groove that corresponds through annular locating part.

As a preferred technical scheme of the utility model, two equal threaded connection has the screw shaft in the nut, two the screw shaft is in the connecting tube that corresponds, two the equal fixed mounting of one end has a limit flange piece, the external diameter of limit flange piece is greater than the external diameter of screw shaft in keeping away from the screw shaft mutually.

As a preferred technical scheme of the utility model, two the outer rampart of spacing flange piece all is about two dead levers of centrosymmetric fixedly connected with, the dead lever is close to the equal perpendicular fixedly connected with gag lever post of blade holder one end, the gag lever post is kept away from dead lever one end and is all inserted in the blade holder, two the equal fixed mounting in one side, two are kept away from mutually to the spacing flange piece the connecting hole that two looks parallel has all been run through to two opposite flanks of connecting block.

The utility model discloses the beneficial effect who reaches is: the utility model relates to a rake angle end mill varies has easy to assemble's characteristics, in specific use, compares with traditional rake angle end mill varies, and this rake angle end mill varies is provided with adjustment mechanism, and the screw-thread fit through nut and screw shaft makes two connecting blocks can realize the regulation of relative position, and the spacing horizontal angle that makes the connecting hole through the gag lever post simultaneously does not change, and then makes things convenient for different mounting structure's cooperation installation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

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

fig. 3 is a schematic top view of a part of the adjusting mechanism of the present invention.

In the figure: 1. a tool apron; 2. a milling head; 3. an adjustment mechanism; 11. an open slot; 12. fixing the disc; 13. a connecting pipe; 14. an annular limiting groove; 31. a nut; 32. an annular limiting member; 33. a threaded shaft; 34. a limiting flange sheet; 35. fixing the rod; 36. a limiting rod; 37. connecting blocks; 38. and connecting the holes.

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.

Examples

As shown in fig. 1-3, the utility model relates to an end mill with unequal rake angles, including blade holder 1, milling cutter head 2 and adjustment mechanism 3, 1 one end fixed mounting of blade holder has milling cutter head 2, blade holder 1 is kept away from 2 one end fixed mounting of milling cutter head and is had two adjustment mechanism 3, two 3 specifications of adjustment mechanism are unanimous and are axial symmetry distribution about 1 axis of blade holder each other.

Wherein, blade holder 1 is kept away from 2 one ends of milling cutter head and has been seted up open slot 11, open slot 11 intussuseption is filled with fixed disk 12, the thickness of fixed disk 12 equals the width of open slot 11, the double-phase internal cell wall central point of open slot 11 puts and runs through blade holder 1 respectively and pushes up and the cylinder hole has been seted up to the bottom, two the downthehole equal embedding of cylinder installs connecting pipe 13, two the outer wall of connecting pipe 13 all sets up with the laminating of the interior hole wall in cylinder hole mutually, makes things convenient for the flexible of screw spindle 33 through setting up connecting pipe.

The upper top center position and the lower bottom center position of the tool apron 1 are both provided with annular limiting grooves 14, the specifications of the two annular limiting grooves 14 are consistent, and the annular limiting grooves 14 are arranged to cooperate with the annular limiting piece 32 to realize the positioning rotation of the nut 31.

Wherein, adjustment mechanism 3 all includes nut 31, two the equal fixed mounting in one side in opposite directions of nut 31 has annular locating part 32, two annular locating part 32 sets up with two annular spacing groove 14 looks adaptations respectively, nut 31 all rotates the installation in the annular spacing groove 14 that corresponds through annular locating part 32, and the rotatory location of nut 31 is realized to cooperation annular spacing groove 14.

Wherein, two equal threaded connection has screw spindle 33 in the nut 31, two screw spindle 33 is in opposite directions the one end all inserts corresponding connecting pipe 13 in, two screw spindle 33 keeps away from the equal fixed mounting of one end mutually and has spacing flange piece 34, the external diameter of spacing flange piece 34 is greater than the external diameter of screw spindle 33, carries out spacing protection through spacing flange piece 34 to screw spindle 33.

The outer ring walls of the two limiting flange pieces 34 are fixedly connected with two fixing rods 35 symmetrically about the center, one ends, close to the tool apron 1, of the fixing rods 35 are fixedly connected with limiting rods 36 vertically, one ends, far away from the fixing rods 35, of the limiting rods 36 are inserted into the tool apron 1, connecting blocks 37 are fixedly mounted on one sides, far away from the fixing rods 35, of the two limiting flange pieces 34, and two connecting holes 38 which are parallel to each other are formed in two opposite side faces of the two connecting blocks 37 in a penetrating mode.

Specifically, the utility model discloses during the use, the utility model discloses a milling head 2 is the common anterior angle end mill that varies in market, does not do too much narration here, and specific installation steps are as follows: firstly, the relative distance between two connecting blocks 37 and auxiliary connecting holes 38 thereof is adjusted according to the specific specification of an external mounting structure matched with an end mill, two nuts 31 are respectively rotated to drive corresponding threaded shafts 33 to rotate, and because the end parts of the threaded shafts 33 far away from each other are fixedly provided with a limiting flange piece 34 and a connecting block 37, the threaded shafts 33 are also used for driving the limiting flange pieces 34 and the connecting blocks 37 to rotate, but because the limiting rods 36 are always inserted into the tool apron 1, the limiting effect is achieved on the limiting flange pieces 34 and the connecting blocks 37, so that the two connecting blocks 37 only do linear motion far away from each other without rotary motion, further the two connecting blocks 37 and the auxiliary connecting holes 38 are far away from each other, and the mounting step is conveniently completed by matching the external mounting structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an end mill with unequal rake angles, its characterized in that includes blade holder (1), milling cutter head (2) and adjustment mechanism (3), blade holder (1) one end fixed mounting has milling cutter head (2), blade holder (1) is kept away from milling cutter head (2) one end fixed mounting and is had two adjustment mechanism (3), two adjustment mechanism (3) specification is unanimous and is axial symmetric distribution about blade holder (1) axis each other.

2. The end mill with unequal rake angles according to claim 1, wherein an open slot (11) is formed in one end of the cutter holder (1) away from the milling cutter head (2), a fixed disc (12) is filled in the open slot (11), the thickness of the fixed disc (12) is equal to the width of the open slot (11), two inner wall centers of the open slot (11) respectively penetrate through the top and the bottom of the cutter holder (1) to form a cylindrical hole, connecting pipes (13) are embedded in the two cylindrical holes, and outer walls of the two connecting pipes (13) are attached to inner walls of the cylindrical hole.

3. The end mill with unequal rake angles according to claim 1, wherein the tool holder (1) is provided with annular limiting grooves (14) at the top center and the bottom center, and the two annular limiting grooves (14) have the same specification.

4. The end mill with unequal rake angles according to claim 1, wherein the adjusting mechanisms (3) each comprise a nut (31), two ring-shaped limiting members (32) are fixedly mounted on opposite sides of the nuts (31), the two ring-shaped limiting members (32) are respectively matched with the two ring-shaped limiting grooves (14), and the nuts (31) are rotatably mounted in the corresponding ring-shaped limiting grooves (14) through the ring-shaped limiting members (32).

5. The end mill with unequal rake angles according to claim 4, wherein a threaded shaft (33) is threadedly connected to each of the two nuts (31), opposite ends of the two threaded shafts (33) are respectively inserted into the corresponding connecting pipes (13), a limiting flange piece (34) is fixedly mounted to each of the two threaded shafts (33) far away from each other, and the outer diameter of the limiting flange piece (34) is larger than that of the threaded shafts (33).

6. The end mill with unequal rake angles according to claim 5, wherein two fixing rods (35) are fixedly connected to the outer annular walls of the two limiting flange pieces (34) symmetrically with respect to the center, one ends of the fixing rods (35) close to the tool holder (1) are vertically and fixedly connected with limiting rods (36), one ends of the limiting rods (36) far away from the fixing rods (35) are inserted into the tool holder (1), connecting blocks (37) are fixedly mounted on one sides of the two limiting flange pieces (34) far away from each other, and two connecting holes (38) parallel to each other are formed in two opposite side surfaces of the two connecting blocks (37) in a penetrating mode.