CN218192776U

CN218192776U - Ball-end milling cutter

Info

Publication number: CN218192776U
Application number: CN202222519946.1U
Authority: CN
Inventors: 展桂杰; 吴博; 张汉葳
Original assignee: Daibel Suzhou Cutting Tool Co ltd
Current assignee: Daibel Suzhou Cutting Tool Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-03
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a ball-end milling cutter, including cutter main body and blade group, cutter main body includes bulb, sword neck and the handle of a knife of integral type design, the one end that the sword neck is close to the bulb is encircleed and is fixed with a plurality of chip groove, blade group is equipped with a plurality of, a plurality of altogether blade group is encircleed and is fixed around the bulb, blade group includes the blade groove that a plurality of connected gradually and fixes the main blade in blade groove one side, from bulb center to bulb outer fringe the height in blade groove scales up in proper order. This bulb type milling cutter simple structure, the modern design, the convenient sweeps that produces the blade when the curved surface cutting is discharged along the chip groove, prevents that the sweeps from piling up, and the guarantee chip removal is unobstructed, and then can process with faster feed speed, has greatly improved machining efficiency.

Description

Ball-end milling cutter

Technical Field

The utility model belongs to the technical field of cutting tool, concretely relates to ball head type milling cutter.

Background

Cutting tools are tools used in machining for cutting operations. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The cutter is of various types, the cutter for processing the outer surfaces of various parts comprises a turning tool, a planer tool, a milling cutter, an outer surface broach, a file and the like, and a ball-end milling cutter in the milling cutter is a cutter with a cutting edge similar to a ball end and assembled on a milling machine for milling various curved surfaces and arc grooves. The ball end milling cutter is also called as an R cutter, when a deep groove is machined, the cutter can sink completely, because the chip groove of the ball end milling cutter is relatively small, the chip removal capability is poor, when a relatively viscous material (such as red copper) is machined, if the feeding speed is high, the cutter is easy to break, the feeding speed can only be reduced, and further the machining efficiency is low. Therefore, it is urgently required to design a ball-end type milling cutter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball-end milling cutter to solve the problem that exists among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ball-end type milling cutter, includes cutter main body and blade group, the cutter main body includes bulb, sword neck and the handle of a knife of integral type design, the one end that the sword neck is close to the bulb is encircleed and is fixed with a plurality of chip groove, the blade group is equipped with a plurality of altogether, a plurality of the blade group is encircleed and is fixed around the bulb, the blade group includes the blade groove that a plurality of connected gradually and fixes the main blade in blade groove one side, from bulb center to bulb outer fringe the height in blade groove scales up in proper order.

Further, bulb, sword neck and the coaxial setting of handle of a knife, wherein, the bulb is the hemisphere structure, the sword neck is the cylinder structure, the bulb is the same with the diameter of sword neck, the one end of handle of a knife is equipped with the spread groove, and is equipped with spacing hole on the side surface of the other end.

Furthermore, the length of the cutter neck is 3-4 times of the diameter of the cutter neck.

Furthermore, the blade group is provided with three groups, and the three groups of blade groups are distributed at equal intervals and are obliquely arranged along the clockwise direction.

Furthermore, each blade group comprises three blade grooves which are welded in sequence, and the inclination angle of the blade grooves from the center of the ball head to the outer edge of the ball head is gradually decreased.

Still further, the chip groove is equipped with four altogether, four the chip groove equidistance distributes and sets up along the anticlockwise slope, the chip groove is "L" type structure, the tip of chip groove is towards the one end of bulb, the tip welding of chip groove has vice blade.

Still further, the material in cutter main part and blade groove is the steel, what main blade and vice blade adopted is the diamond compact piece, main blade and blade groove welding, blade groove and bulb welding.

Still further, the auxiliary blade comprises a first processing edge, a guide edge, a second processing edge and a third processing edge which are sequentially connected, the first processing edge, the second processing edge and the third processing edge are straight edges, and the guide edge is an arc-shaped edge.

The utility model discloses a technological effect and advantage: this bulb type milling cutter simple structure, the modern design through the blade group that sets up along clockwise slope, the chip groove that the cooperation set up along anticlockwise slope uses, and the sweeps that conveniently produces the blade when the curved surface cutting is discharged along the chip groove, prevents that the sweeps from piling up, and the guarantee chip removal is unobstructed, and then can process with faster feed speed, has greatly improved machining efficiency.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a detailed view of the part a of the present invention.

In the figure: 100. a cutter body; 101. a ball head; 102. a cutter neck; 103. a knife handle; 1031. connecting grooves; 1032. a limiting hole; 200. a blade set; 201. an insert pocket; 202. a main blade; 204. a chip groove; 205. a secondary blade; 2051. a first processing blade; 2052. a guide blade; 2053. a second processing blade; 2054. and a third processing blade.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a ball-end milling cutter as shown in fig. 1-3, including cutter main body 100 and blade group 200, cutter main body 100 includes the bulb 101 of integral type design, sword neck 102 and handle of a knife 103, sword neck 102 is close to the one end of bulb 101 and encircles and be fixed with four chip grooves 204, blade group 200 is equipped with three groups altogether, three blade group 200 of group encircle the axis setting of bulb 101 and fix around bulb 101, blade group 200 includes three welded blade groove 201 in proper order and three main blade 202 of fixing respectively in blade groove 201 with one side, highly progressively increase in proper order from the blade groove 201 of bulb 101 center to bulb 101 outer fringe, and then make the height of main blade 202 from bulb 101 center to bulb 101 outer fringe progressively increase in proper order, conveniently process the curved surface.

In addition, bulb 101, the coaxial setting of sword neck 102 and handle of a knife 103, be favorable to improving the stability when cutter main part 100 spin-cut, wherein, bulb 101 is the hemisphere structure, conveniently process the curved surface, sword neck 102 is the cylinder structure, bulb 101 is the same with the diameter of sword neck 102, conveniently transmit the revolving force to bulb 101 through sword neck 102 better, the one end of handle of a knife 103 is equipped with connecting groove 1031, conveniently be connected with the lathe main shaft, be equipped with spacing hole 1032 on the side surface of the handle of a knife 103 other end, be used for exerting pressure to the lathe main shaft through spacing post, make handle of a knife 103 and lathe main shaft be connected the fastening.

Specifically, the length of the tool neck 102 is 3 to 4 times of the diameter thereof, which is beneficial to improving the feeding depth of the tool body 100 and facilitating the processing of deep grooves.

It should be mentioned that the three groups of blade sets 200 are equidistantly distributed and are obliquely arranged along the clockwise direction, so that the cutting ranges of the three groups of blade sets 200 are the same, the abrasion degrees of the main blades 202 in the three groups of blade sets 200 are the same, the maintenance cost is reduced, and meanwhile, scraps generated by cutting the three groups of blade sets 200 can be uniformly discharged.

Specifically, each blade group 200 comprises three blade grooves 201 welded in sequence, the inclination angle from the center of the ball head 101 to the blade groove 201 at the outer edge of the ball head 101 decreases gradually in sequence, so that the cutting areas at two adjacent ends of three main blades 202 in the same blade group 200 are overlapped, and further, each blade group 200 can cut a complete surface at one time, and the cutting quality is improved.

It should be noted that four chip grooves 204 are formed, the four chip grooves 204 are distributed at equal intervals and are obliquely arranged along the counterclockwise direction, so that waste chips can be discharged along the chip grooves 204, accumulation of the waste chips is effectively avoided, the chip grooves 204 are of an L-shaped structure, the end portions of the chip grooves 204 face one end of the ball head 101, and the auxiliary blades 205 are welded at the end portions of the chip grooves 204, so that secondary milling processing of a workpiece is facilitated.

Specifically, the cutter body 100 and the blade groove 201 are made of steel, the main blade 202 and the auxiliary blade 205 are made of diamond composite sheets, the diamond composite sheets are formed by sintering diamond micro powder and a hard alloy substrate under the conditions of ultrahigh pressure and high temperature, the diamond composite sheets have the high hardness, high wear resistance and thermal conductivity of diamond and the strength and impact toughness of hard alloy, and are ideal materials for manufacturing cutting tools, drilling bits and other wear-resistant tools, the main blade 202 is welded with the blade groove 201, the blade groove 201 is welded with the ball head 101, and the structure is stable.

Specifically, the auxiliary blade 205 comprises a first processing edge 2051, a guide edge 2052, a second processing edge 2053 and a third processing edge 2054 which are sequentially connected, the first processing edge 2051, the second processing edge 2053 and the third processing edge 2054 are straight edges, and the guide edge 2052 is an arc-shaped edge, so that the periphery of a workpiece processing point is conveniently milled through the auxiliary blade 205, and the feeding of the tool body 100 is facilitated.

The working principle is as follows: when the ball-end milling cutter is used, firstly, the connecting groove 1031 of the cutter handle 103 is connected with a machine tool spindle, then the cutter handle 103 is limited by the limiting column penetrating through the limiting hole 1032, the machine tool spindle drives the cutter main body 100 to rotate, then, parts are attached to the ball head 101, under the cutting action of the main blade 202, the cutting depth is continuously deepened, the cutting depth of the center of the ball head 101 is larger than the cutting depth of the periphery of the ball head 101, the cutting processing of a curved surface is finally completed, and when the main blade 202 cuts, waste chips are discharged along the chip discharge groove 204. This bulb type milling cutter simple structure, the modern design through the blade group 200 that sets up along clockwise slope, and the chip groove 204 that sets up is followed counterclockwise slope in the cooperation uses, has effectively prevented that the sweeps from piling up, and the guarantee chip removal is unobstructed, and then can process with faster feed speed, has greatly improved machining efficiency.

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 can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A ball end mill, characterized in that: including cutter main body (100) and blade group (200), cutter main body (100) include bulb (101), sword neck (102) and handle of a knife (103) of integral type design, the one end that sword neck (102) are close to bulb (101) is encircleed and is fixed with a plurality of chip groove (204), blade group (200) are equipped with a plurality of altogether, a plurality of blade group (200) are encircleed and are fixed around bulb (101), blade group (200) include blade groove (201) that a plurality of connected gradually and fix main blade (202) in blade groove (201) one side, follow bulb (101) center to bulb (101) outer fringe the height of blade groove (201) increases progressively in proper order.

2. The ball nose type milling cutter according to claim 1, wherein: bulb (101), sword neck (102) and handle of a knife (103) coaxial setting, wherein, bulb (101) are the hemisphere structure, sword neck (102) are the cylinder structure, bulb (101) are the same with the diameter of sword neck (102), the one end of handle of a knife (103) is equipped with connecting groove (1031), and is equipped with spacing hole (1032) on the side surface of the other end.

3. The ball nose type milling cutter according to claim 1, wherein: the length of the cutter neck (102) is 3-4 times of the diameter of the cutter neck.

4. The ball nose type milling cutter according to claim 1, wherein: the blade set (200) is provided with three groups in all, and the three groups of blade set (200) are distributed at equal intervals and are obliquely arranged along the clockwise direction.

5. The ball nose type milling cutter according to claim 1, wherein: each blade group (200) comprises three blade grooves (201) welded in sequence, and the inclination angles of the blade grooves (201) from the center of the ball head (101) to the outer edge of the ball head (101) are gradually decreased.

6. The ball nose type milling cutter according to claim 1, wherein: chip groove (204) are equipped with four altogether, four chip groove (204) equidistance distributes and sets up along anticlockwise slope, chip groove (204) are "L" type structure, the tip of chip groove (204) is towards the one end of bulb (101), the tip welding of chip groove (204) has vice blade (205).

7. The ball nose type milling cutter according to claim 6, wherein: the material of cutter main part (100) and blade groove (201) is the steel, what main blade (202) and auxiliary blade (205) adopted is the diamond compact piece, main blade (202) and blade groove (201) welding, blade groove (201) and bulb (101) welding.

8. The ball nose type milling cutter according to claim 6, wherein: the auxiliary blade (205) comprises a first processing edge (2051), a guide edge (2052), a second processing edge (2053) and a third processing edge (2054) which are sequentially connected, the first processing edge (2051), the second processing edge (2053) and the third processing edge (2054) are straight edges, and the guide edge (2052) is an arc-shaped edge.