CN215787007U

CN215787007U - Replaceable ball end mill

Info

Publication number: CN215787007U
Application number: CN202121868626.6U
Authority: CN
Inventors: 耿祥红; 赵启彪; 赵强; 熊维勇; 余万秋; 蒋勇
Original assignee: Luzhou Changjiang Machinery Co ltd
Current assignee: Luzhou Changjiang Machinery Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-02-11
Anticipated expiration: 2031-08-10

Abstract

The utility model belongs to the technical field of milling cutter equipment, and particularly relates to a replaceable ball-end milling cutter, which comprises a cutter handle, wherein one end of the cutter handle is fixedly connected with a connecting column, the lower end of the connecting column is provided with a connecting bulge, two groups of connecting threaded holes are formed in the connecting bulge, one end of the connecting column is fixedly connected with a milling cutter head, the upper end of the inner part of the milling cutter head is provided with a connecting groove, the outer surface of the milling cutter head close to the upper end is provided with two groups of first threaded holes, the inner parts of the two groups of first threaded holes are rotatably connected with two groups of first bolts, the outer surface of the two groups of first bolts close to the tail part is rotatably connected with two groups of first nuts, the lower end of the inner part of the milling cutter head is provided with a blade groove, the outer surface of the milling cutter head close to the lower end is provided with two groups of second threaded holes, the inner parts of the two groups of second threaded holes are rotatably connected with two groups of second bolts, the outer surfaces of the two groups of second bolts close to the tail part are rotatably connected with two groups of second nuts, the milling cutter blade is fixedly connected inside the blade groove, and four groups of blade threaded holes are formed inside the milling cutter blade.

Description

Replaceable ball end mill

Technical Field

The utility model belongs to the technical field of milling cutter equipment, and particularly relates to a replaceable ball end milling cutter.

Background

The milling cutter is a tool made of tungsten steel hard alloy and is generally mainly used for a numerical control machining center, the ball end milling cutter can carve raw materials under the driving of driving equipment, so that the raw materials are changed into required shapes after being machined by the ball end milling cutter, and the milling cutter is very practical and convenient for machining the raw materials.

There are the following problems:

at present, along with the complex diversification of processing raw materials, a single common milling cutter can not meet the processing requirement, and the common milling cutter blade can not be replaced, so that the milling cutter blade needs to be frequently and frequently replaced when different raw materials are processed, and the problem of influencing the processing speed can be caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a replaceable ball end milling cutter, and solves the problem that the processing speed is influenced because the common milling cutter blade cannot be replaced, so that the milling cutter blade needs to be frequently replaced when different raw materials are processed.

In order to achieve the purpose, the utility model adopts the following technical scheme: a replaceable ball end mill comprises a cutter handle, wherein one end of the cutter handle is fixedly connected with a connecting column, the lower end of the connecting column is provided with a connecting bulge, two groups of connecting threaded holes are formed in the connecting bulge, one end of the connecting column is fixedly connected with a mill head, the upper end in the mill head is provided with a connecting groove, two groups of first threaded holes are formed in the outer surface of the mill head close to the upper end, two groups of first threaded holes are rotatably connected in the two groups of first threaded holes, two groups of first nuts are rotatably connected on the outer surface of the first bolts close to the tail part, a blade groove is formed in the lower end in the mill head, two groups of second threaded holes are formed in the outer surface of the mill head close to the lower end, two groups of second threaded holes are rotatably connected in the two groups of second threaded holes, two groups of second nuts are rotatably connected on the outer surface of the second bolts close to the tail part, the milling cutter is characterized in that a milling cutter blade is fixedly connected inside the blade groove, and a plurality of groups of blade threaded holes are formed inside the milling cutter blade.

As a further description of the above technical solution:

one end of the connecting column is fixedly connected with one end of the cutter handle in a welding mode, the connecting protrusion is the same as the connecting groove in shape, and the connecting groove is slightly larger than the connecting protrusion.

As a further description of the above technical solution:

two sets of first bolt runs through two sets of first screw holes, and two sets of first bolt all is inside the connecting groove and the connecting thread hole screwed connection of connecting protruding surface.

As a further description of the above technical solution:

the distance between the two groups of first threaded holes is the same as that between the two groups of connecting threaded holes, and the connecting bulges are fixedly connected with the connecting grooves through the two groups of first bolts.

As a further description of the above technical solution:

and the two groups of second bolts penetrate through the two groups of second threaded holes, and are in threaded connection with the blade threaded holes in the outer surface of the milling blade in the blade groove.

As a further description of the above technical solution:

the distance between the two groups of second threaded holes is the same as that between the two adjacent groups of blade threaded holes, and the milling blade is fixedly connected with the blade groove through two groups of second bolts.

As a further description of the above technical solution:

the number of the blade threaded holes is four, and the distance between every two adjacent blade threaded holes of the four groups of the blade threaded holes is the same.

Compared with the prior art, the utility model provides a replaceable ball end mill, which has the following beneficial effects:

this ball end milling cutter, can select different blade access mode according to the processing needs, choose the adjacent two sets of wherein of four group's blade screw holes of milling cutter piece surface wantonly, the adjacent two sets of blade screw holes that will select are connected on the second bolt, we select the adjacent two sets of blade screw holes of difference and make the blade shape that we insert also different, conveniently process different raw materials, can also directly change whole milling cutter head through connecting the arch according to the processing needs, the milling cutter piece, the unable change of solving ordinary milling cutter piece makes us need change the milling cutter piece frequently and frequently when processing different raw materialss, influence the problem of process speed.

Drawings

FIG. 1 is a schematic structural view of a ball end mill body according to the present invention;

FIG. 2 is a schematic view of a connecting portion of the ball end mill of the present invention;

fig. 3 is a schematic view of the internal structure of the ball end mill of the present invention.

Illustration of the drawings:

1. a knife handle; 2. connecting columns; 3. a connecting projection; 4. connecting the threaded hole; 5. a milling head; 6. a first threaded hole; 7. a connecting groove; 8. a first bolt; 9. a second threaded hole; 10. a second bolt; 11. milling a blade; 12. a blade threaded bore; 13. a first nut; 14. a second nut; 15. an insert pocket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, an embodiment of the present invention is provided: a replaceable ball end mill comprises a cutter handle 1, one end of the cutter handle 1 is fixedly connected with a connecting column 2, the lower end of the connecting column 2 is provided with a connecting bulge 3, two groups of connecting threaded holes 4 are formed in the connecting bulge 3, one end of the connecting column 2 is fixedly connected with a milling head 5, the upper end in the milling head 5 is provided with a connecting groove 7, the outer surface of the milling head 5 close to the upper end is provided with two groups of first threaded holes 6, the inner parts of the two groups of first threaded holes 6 are rotatably connected with two groups of first bolts 8, the outer surface of the two groups of first bolts 8 close to the tail part is rotatably connected with two groups of first nuts 13, the lower end in the milling head 5 is provided with a blade groove 15, the outer surface of the milling head 5 close to the lower end is provided with two groups of second threaded holes 9, the inner parts of the two groups of second threaded holes 9 are rotatably connected with two groups of second bolts 10, and the outer surfaces of the two groups of second bolts 10 close to the tail part are rotatably connected with two groups of second nuts 14, the milling cutter blade 11 is fixedly connected inside the blade groove 15, and a plurality of groups of blade threaded holes 12 are formed inside the milling cutter blade 11.

In the embodiment, one end of the connecting column 2 is fixedly connected with one end of the cutter handle 1 in a welding mode, the connecting protrusion 3 is the same as the connecting groove 7 in shape, the connecting groove 7 is slightly larger than the connecting protrusion 3, and the connecting column 2 is fixed, so that the connecting protrusion 3 can be completely placed in the connecting groove 7; two groups of first bolts 8 penetrate through two groups of first threaded holes 6, the two groups of first bolts 8 are in threaded connection with the connecting threaded holes 4 on the outer surface of the connecting protrusion 3 in the connecting groove 7, and the connecting column 2 is fixedly connected with the milling cutter head 5 through the connection of the two groups of first bolts 8 with the two groups of first threaded holes 6 and the two groups of connecting threaded holes 4; the distance between the two groups of first threaded holes 6 is the same as that between the two groups of connecting threaded holes 4, the connecting protrusions 3 are fixedly connected with the connecting grooves 7 through the two groups of first bolts 8, so that the distances between the two groups of first threaded holes 6 and the two groups of connecting threaded holes 4 are the same, and the two groups of first bolts 8 can connect the two groups of first threaded holes 6 and the two groups of connecting threaded holes 4 in series; two groups of second bolts 10 penetrate through two groups of second threaded holes 9, the two groups of second bolts 10 are in threaded connection with blade threaded holes 12 in the outer surface of the milling blade 11 in the blade groove 15, and the milling cutter head 5 is fixedly connected with the milling blade 11 through the connection of the two groups of second bolts 10 with the two groups of second threaded holes 9 and the two groups of blade threaded holes 12; the distance between the two groups of second threaded holes 9 is the same as the distance between the two adjacent groups of blade threaded holes 12, the milling blade 11 is fixedly connected with the blade groove 15 through the two groups of second bolts 10, so that the distances between the two groups of second threaded holes 9 and the two groups of blade threaded holes 12 are the same, and the two groups of second bolts 10 can ensure that the two groups of second threaded holes 9 and the two groups of blade threaded holes 12 can be connected in series; the number of the insert threaded holes 12 is four, the distance between every two adjacent insert threaded holes 12 of the four groups of insert threaded holes 12 is the same, and the distance between every two adjacent insert threaded holes 12 is the same, so that the two adjacent groups of insert threaded holes 12 can be selected randomly to be connected into the milling head 5 according to the machining requirement.

The working principle and the using process of the utility model are as follows: when a user uses the ball-end milling cutter to process raw materials, the shape of the milling cutter blade 11 connected into the milling cutter head 5 can be selected according to the requirements of the processed raw materials, four groups of blade threaded holes 12 on the outer surface of the milling cutter blade 11 provide four selection possibilities, the corresponding milling cutter blade 11 has four different connection shapes, two groups of adjacent blade nut holes are randomly selected from the four groups of blade threaded holes 12 on the outer surface of the milling cutter blade 11 and are fixed through the second bolt 10, the milling cutter can work, if the processed raw materials change, the two groups of adjacent blade threaded holes 12 which can be correspondingly selected can be changed, the whole milling cutter head 5 and the milling cutter blade 11 can be directly replaced through the connecting bulge 3 according to the processing requirements, the ball-end milling cutter is suitable for processing various raw materials, and the processing time is saved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a ball end mill that can change, includes handle of a knife (1), its characterized in that: one end of the knife handle (1) is fixedly connected with a connecting column (2), the lower end of the connecting column (2) is provided with a connecting bulge (3), two groups of connecting threaded holes (4) are formed in the connecting bulge (3), one end of the connecting column (2) is fixedly connected with a milling head (5), the upper end in the milling head (5) is provided with a connecting groove (7), the outer surface of the milling head (5) close to the upper end is provided with two groups of first threaded holes (6), the inner part of the two groups of first threaded holes (6) is rotatably connected with two groups of first bolts (8), the outer surface of the two groups of first bolts (8) close to the tail part is rotatably connected with two groups of first nuts (13), the lower end in the milling head (5) is provided with a blade groove (15), the outer surface of the milling head (5) close to the lower end is provided with two groups of second threaded holes (9), the inner part of the second threaded hole (9) is rotatably connected with two groups of second bolts (10), the outer surface of the second bolts (10) close to the tail part is rotatably connected with two groups of second nuts (14), the inner part of the blade groove (15) is fixedly connected with a milling blade (11), and a plurality of groups of blade threaded holes (12) are formed in the milling blade (11).

2. A replaceable ball nose mill as set forth in claim 1, wherein: the tool handle is characterized in that one end of the connecting column (2) is fixedly connected with one end of the tool handle (1) in a welding mode, the connecting protrusion (3) is the same as the connecting groove (7) in shape, and the connecting groove (7) is slightly larger than the connecting protrusion (3).

3. A replaceable ball nose mill as set forth in claim 1, wherein: two sets of first bolt (8) run through two sets of first screw hole (6), and two sets of first bolt (8) all are in connecting groove (7) inside and connect protruding (3) surface connecting thread hole (4) screwed connection.

4. A replaceable ball nose mill as set forth in claim 1, wherein: the distance between the two groups of first threaded holes (6) is the same as that between the two groups of connecting threaded holes (4), and the connecting protrusions (3) are fixedly connected with the connecting grooves (7) through two groups of first bolts (8).

5. A replaceable ball nose mill as set forth in claim 1, wherein: the two groups of second bolts (10) penetrate through the two groups of second threaded holes (9), and the two groups of second bolts (10) are in threaded connection with the blade threaded holes (12) in the outer surface of the milling blade (11) in the blade groove (15).

6. A replaceable ball nose mill as set forth in claim 1, wherein: the distance between the two groups of second threaded holes (9) is the same as that between the two adjacent groups of blade threaded holes (12), and the milling blade (11) is fixedly connected with the blade groove (15) through two groups of second bolts (10).

7. A replaceable ball nose mill as set forth in claim 1, wherein: the number of the blade threaded holes (12) is four, and the distance between every two adjacent blade threaded holes (12) of the four groups of the blade threaded holes (12) is the same.