CN219443584U - Strong heavy four-edge end mill - Google Patents

Abstract

The utility model relates to a strong and heavy four-edge end mill, which comprises a milling cutter, wherein a cutter handle is arranged at the right end of the end mill, a cutter edge is arranged at the left end of the end mill, a side edge is arranged on the outer surface of the cutter edge, four end teeth are arranged at the left end of the cutter edge, chip flutes are arranged between the adjacent end teeth, spiral chip flutes are arranged between the side edges, the cutter handle is in threaded connection with a reinforcing piece, a threaded hole a is formed in the left surface of the upper end of the reinforcing piece, and memory cotton is arranged on the inner surface of the right end of the reinforcing piece; by arranging the non-equidistant four blades and the memory cotton, the vibration generated by the end milling cutter during working is slowed down, the abrasion of the cutter is reduced, and the service life is prolonged; by arranging the reinforcing piece, the length of the end mill can be shortened during shallow groove machining and surface machining, and the operation accuracy and strength are improved; through setting up the elastic cotton at the reinforcement, prevent that the flying into inside the reinforcement of during operation sweeps.

Description

Strong heavy four-edge end mill

Technical Field

The utility model relates to the technical field of end milling cutters, in particular to a strong and heavy four-edge end milling cutter.

Background

End mills typically have more than two cutter teeth with cutting edges, and these cutter teeth are typically, but not necessarily, helically twisted about the axis of rotation of the end mill, which types of end mills can be used for different machining purposes by acting the cutting edges of the cutting portions on the workpiece, and the present design mainly slows down chatter, regenerative vibration of the end mill tool, increasing the strength of the end mill tool.

One chinese patent of the utility model, CN201920440105.7, discloses an end mill. The chip flute is arranged between the end teeth of the cutting part, a smooth curve is formed between the rear cutter surface of at least one end tooth and the surface of the chip flute and close to the center, so that the end teeth are guaranteed to have enough chip removal space, the stress concentration of the end teeth of the original end milling cutter is reduced, the cutter strength is improved, the service life of the end teeth of the end milling cutter is prolonged, the outflow of chips can be effectively guaranteed, and the end tooth tipping condition caused by unsmooth chip removal of the end teeth is reduced. The end mill can be used in the smart phone machining industry and achieves good surface quality and life, in particular end mills with diameters below 6mm, but the apparatus has the following problems: the end mill has no function of reducing chatter and regenerative vibration of the end mill, and has no function of changing the length of the side edge of the end mill.

Disclosure of Invention

The utility model aims at solving the technical problems of large vibration, easy tool abrasion and low strength of an end mill during working by means of unequal four blades and memory cotton and reinforcing pieces.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a four sword end mill of strong heavy, includes end mill, the end mill right-hand member is equipped with the handle of a knife, just the end mill left end is equipped with the cutting edge, the cutting edge surface is equipped with the side sword, the cutting edge left end is equipped with four end teeth, and is adjacent be equipped with the chip flute between the end tooth, be equipped with spiral chip flute between the side sword, handle of a knife threaded connection reinforcement, reinforcement front end surface is equipped with suggestion mark a, just reinforcement upper end left side surface is equipped with screw hole a, reinforcement right-hand member internal surface is equipped with memory cotton.

Preferably, the surface of the tool handle is provided with a concave thread, the left side surface of the front end of the tool handle is provided with a prompt sign b, the left side of the concave thread is provided with a threaded hole b, and the threaded hole b is embedded into the upper end surface of the tool handle.

Preferably, the left end of the end tooth is provided with a tooth edge, an included angle formed between adjacent tooth edges is an alpha included angle, the angles of adjacent alpha included angles are different, and the angles of symmetrical alpha included angles are the same.

Preferably, a male thread is arranged in the middle of the inner surface of the reinforcement, the male thread is connected with a female thread in an adaptive mode, the threaded hole a and the threaded hole b are matched in structure, and the male thread and the female thread are connected with bolts.

Preferably, an L-shaped step is arranged on the left side of the inner surface of the reinforcement, and elastic cotton is arranged on the surface of the L-shaped step.

Preferably, the end mill is a flat end mill or a T-shaped end mill, and the end mill and the reinforcement are cemented carbide.

The utility model has the beneficial effects that:

(1) According to the utility model, through arrangement of the non-equidistant four blades and the memory cotton, vibration and regeneration vibration generated by the end mill during working are slowed down, the abrasion of the cutter is reduced, and the service life is prolonged.

(2) The utility model increases the weight of the end mill by arranging the reinforcing piece, shortens the length of the end mill during shallow groove processing and surface processing, increases the accuracy and strength of operation and is not easy to break.

(3) The cutter is integrally made of hard alloy, rigidity is improved, and elastic cotton is arranged on the reinforcing piece, so that collision between the end mill and the reinforcing piece can be reduced, and scraps can be prevented from flying into the reinforcing piece during working.

In conclusion, the equipment has the advantages of simple structure, high strength and vibration reduction, and is particularly suitable for the technical field of end milling cutters.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings described below are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of a strong heavy-duty four-edged end mill.

Fig. 2 is a schematic front view of an end mill.

Fig. 3 is a schematic left-hand view of an end mill.

Fig. 4 is a schematic cross-sectional elevation view of a stiffener.

Fig. 5 is a schematic view of a four-edged end mill in use.

Detailed Description

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 5, the present utility model provides a strong and heavy four-edge end mill, including an end mill 1, the right end of the end mill 1 is provided with a shank 11, which mainly plays a role of fixing and supporting, and the left end of the end mill 1 is provided with a cutting edge 12, the outer surface of the cutting edge 12 is provided with a side edge 122, the left end of the cutting edge 12 is provided with four end teeth 124 for surface processing, chip flutes 123 are provided between adjacent end teeth 124, the chip flutes 123 are embedded in the surface of a spiral chip flute 121, the chip space at the top end of the cutting edge is increased, which is conducive to chip removal of residues, the side edge 122 is provided with a spiral chip flute 121, the shank 11 is in threaded connection with a reinforcing member 2, compared with a conventional end mill cutter, the reinforcing member 2 increases the weight and core thickness of the whole cutter, the strength of the cutter is increased, the front end surface of the reinforcing member 2 is provided with a prompt mark a21, during production and assembly, the prompt mark a21 and the prompt mark b112 are kept aligned, the threaded hole a23 and the threaded hole b113 are enabled to be coincident in a loose state between the reinforcing member 2 and the end mill 1, the screw bolt 2 is fixedly connected with the screw hole 2, and the screw hole 2 is prevented from being in a loose state, and the screw hole 2 is prevented from being deformed by the vibration due to the vibration of the screw bolt 1, and the end mill is provided with a high-end mill surface quality and the hollow end mill surface is filled with a high-quality and a high-quality end milling material, and a quality material is used in the quality 1.

Further, as shown in fig. 2, the surface of the tool shank 11 is provided with a concave thread 111, and the left surface of the front end of the tool shank 11 is provided with a prompt mark b112, which is aligned with the prompt mark a21 to play a role in limiting prompt and quicken the working efficiency, the left side of the concave thread 111 is provided with a threaded hole b113, and the threaded hole b113 is embedded into the upper surface of the tool shank 11.

Further, as shown in fig. 3, the left end of the end tooth 124 is provided with a tooth edge 1241, an included angle formed between adjacent tooth edges 1241 is an α included angle 125, angles of adjacent α included angles 125 are different, angles of symmetrical α included angles 125 are the same, unequal tooth pitches are formed, resonance of the cutter during cutting is reduced, and smoothness of reaming is improved.

Further, as shown in fig. 4, the middle part of the inner surface of the reinforcement (2) is provided with a male thread 24, the male thread 24 is connected with a female thread 111 in an adapting manner, in the screwing state of the male thread 24 and the female thread 111, the fixing effect is achieved, the threaded hole a23 and the threaded hole b113 are matched in structure, the threaded hole a23 and the threaded hole b113 can be overlapped in the unscrewing state between the reinforcement 2 and the end mill 1, the fastening connection is convenient, and the threaded hole a23 and the threaded hole b113 are both connected with the bolt 3.

Further, the left side of the inner surface of the reinforcement 2 is provided with an L-shaped step, more space is reserved for elastic cotton, the surface of the L-shaped step is provided with elastic cotton 22, gaps between the cutting edge 12 and the reinforcement 2 are filled, collision between parts is reduced, and scraps can be prevented from flying into the reinforcement during working.

Further, the end mill 1 is a flat end mill or a T-shaped end mill, and the end mill 1 and the reinforcement 2 are both cemented carbide, and have good rigidity, so as to provide better strength support for the tool.

The working process comprises the following steps: during assembly, firstly, the prompt sign a21 is aligned with the prompt sign b112, and then the reinforcement 2 is in threaded connection with the outside of the end mill 1; when rotated to a state where the screw hole a23 and the screw hole b113 overlap, both are fixed by the bolts 3; then clamping the reinforcement 2 on a cantilever of a vertical milling machine; when shallow groove processing is needed, the bolt 3 is screwed down, the end mill 1 is rotated until the end mill is screwed with the reinforcing piece 2, the length of the end mill is shortened, the operation accuracy and strength are improved, and long cutter breakage is avoided.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front and rear", "left and right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or component in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

Of course, in this disclosure, those skilled in the art will understand that the term "a" or "an" is to be interpreted as "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, and in another embodiment, the number of elements may be multiple, and the term "a" is not to be construed as limiting the number.

The foregoing is merely a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art under the technical teaching of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (6)

1. A strong, heavy-duty four-edged end mill characterized by: including end mill (1), end mill (1) right-hand member is equipped with handle of a knife (11), just end mill (1) left end is equipped with cutting edge (12), cutting edge (12) surface is equipped with side sword (122), cutting edge (12) left end is equipped with four end teeth (124), adjacent be equipped with chip flute (123) between end teeth (124), be equipped with spiral chip flute (121) between side sword (122), handle of a knife (11) threaded connection reinforcement (2), reinforcement (2) front end surface is equipped with suggestion mark a (21), just reinforcement (2) upper end left side surface is equipped with screw hole a (23), reinforcement (2) right-hand member internal surface is equipped with memory cotton (25).

2. The heavy-duty four-edge end mill according to claim 1, wherein the surface of the shank (11) is provided with a concave thread (111), the left surface of the front end of the shank (11) is provided with a prompt mark b (112), the left side of the concave thread (111) is provided with a threaded hole b (113), and the threaded hole b (113) is embedded into the upper surface of the shank (11).

3. The heavy-duty four-edge end mill according to claim 1, wherein the left end of the end tooth (124) is provided with a tooth edge (1241), an included angle formed between adjacent tooth edges (1241) is an alpha included angle (125), angles of adjacent alpha included angles (125) are different, and angles of symmetrical alpha included angles (125) are the same.

4. A strong and heavy duty four edge end mill according to claim 1, characterized in that the middle part of the inner surface of the reinforcement (2) is provided with a male thread (24), the male thread (24) is adapted to be connected with a female thread (111), the threaded hole a (23) and the threaded hole b (113) are structurally matched, and both are connected with a bolt (3).

5. A strong and heavy duty four edge end mill according to claim 1, characterized in that the left side of the inner surface of the reinforcement (2) is provided with an L-shaped step, the L-shaped step surface being provided with resilient cotton (22).

6. A strong and heavy duty four edge end mill according to claim 1, characterized in that the end mill (1) is a flat end mill or a T-shaped end mill, the end mill (1) and the reinforcement (2) being cemented carbide.