CN220407217U

CN220407217U - Three-edge milling cutter

Info

Publication number: CN220407217U
Application number: CN202322075021.7U
Authority: CN
Inventors: 刘光强; 谌庆林
Original assignee: Mug Precision Tools Hangzhou co Ltd
Current assignee: Mug Precision Tools Hangzhou co Ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-01-30
Anticipated expiration: 2033-08-03

Abstract

The three-edge milling cutter comprises a milling cutter disc and a plurality of cutter heads formed in the circumferential direction of the milling cutter disc, wherein corresponding milling cutter blades are arranged on the cutter heads, bumps are formed on one sides of the cutter heads, an installation space for installing the milling cutter blades is formed between the bumps and the cutter heads, a cutting cutter head is formed on the milling cutter heads, and the cutting cutter head comprises at least two cutting heads which are arranged in parallel; the top of the cutter head is provided with a first clearance groove, and the cutting cutter head is provided with a cutting edge groove corresponding to the first clearance groove; compared with the prior art, through the cutting tool bit that sets up on the milling cutter piece, the cutting tool bit includes two at least cutting heads, when the helicla flute processing to percussion drill both sides, two cutting heads can process two helicla flute simultaneously to the one shot forming of helicla flute has been realized, the efficiency of processing has been improved.

Description

Three-edge milling cutter

Technical Field

The utility model relates to the technical field of cutting tools, in particular to a three-edge milling cutter.

Background

A face milling cutter is a cutting tool for metal machining, the cutting head of which has three cutting edges, typically distributed around the cutting head, which design enables the milling cutter to cut three different faces of a metal work piece simultaneously when performing a milling operation. Face milling cutters are typically used for efficient metal machining because they can perform more cutting work in one operation. The head of such milling cutters is usually made of cemented carbide or high speed steel to ensure wear resistance and cutting ability of the cutter. The three-edge milling cutter can be used on milling machines, milling machines and other processing equipment, and is suitable for different metal materials, such as steel, aluminum, copper and the like.

The Chinese patent with the application number of 201720286042.5 discloses a three-sided milling cutter, the milling cutter comprises a milling cutter disc, milling blades and fixing screws, a plurality of chip removal grooves are formed in the circumferential direction of the milling cutter disc, each chip removal groove comprises a fixing surface for fixing the milling blade and a chip removal surface convenient for chip removal, a T-shaped groove is formed in the middle of the fixing surface and communicated with the side surface of the milling cutter disc, and first threaded holes are formed in two sides of the fixing surface; the milling cutter blade comprises a contact surface which is contacted with the fixed surface, a T-shaped protruding block is integrally formed in the middle of the contact surface, and waist-shaped threaded holes which are convenient for adjusting the position of the milling cutter blade are formed in two sides of the contact surface; t type lug and T type recess assorted, set screw pass through waist type screw hole and first screw hole with milling cutter piece fixed on milling cutter dish, through set up waist type screw hole in the both sides of contact surface to make things convenient for milling cutter piece adjustment position, guarantee to polish the milling cutter piece that shortens and can continue to use. The chinese patent of application No. 200520076138.6 discloses a three-sided milling cutter, which comprises a key slot, an inner hole, a cutter body and cutting edges, wherein the cutting edges are three-sided cutting edges welded with the cutter body together, the cutting edges are 14-40 pieces, and the cutting edges are uniformly welded on the periphery of the cutter body at intervals. The beneficial effects of the utility model are as follows: simple structure, convenient to use, furthest's cost is reduced on the basis of guaranteeing the precision.

The milling cutter blade in the prior art disclosed by the above can only process one side of the spiral groove at a time when the spiral groove of the impact drill is grooved, when a plurality of spiral grooves are required to be processed on a workpiece, the workpiece is required to be subjected to a plurality of spiral groove operations, so that the workpiece is required to be repeatedly clamped for a plurality of times, the workpiece is easy to deviate in the clamping process, the processing precision of the spiral groove is affected, and meanwhile, the processing efficiency is low due to the mode of repeated clamping and repeated processing.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the three-edge milling cutter which is convenient to replace and can finish machining of spiral grooves on two sides of a percussion drill at one time.

In order to achieve the above object, the present utility model adopts the following technical scheme: the three-edge milling cutter comprises a milling cutter disc and a plurality of cutter heads formed in the circumferential direction of the milling cutter disc, wherein corresponding milling cutter blades are arranged on the cutter heads, bumps are formed on one sides of the cutter heads, an installation space for installing the milling cutter blades is formed between the bumps and the cutter heads, a cutting cutter head is formed on the milling cutter heads, and the cutting cutter head comprises at least two cutting heads which are arranged in parallel; the top of the cutter head is provided with a first clearance groove, and the cutting cutter head is provided with a cutting edge groove corresponding to the first clearance groove.

As a preferred embodiment of the present utility model, the first clearance groove communicates with the corresponding cutting edge groove.

As a preferred embodiment of the present utility model, the first clearance groove is flush with the corresponding cutting edge groove.

As a preferred embodiment of the present utility model, the cutter head is formed with a mounting hole to which the milling blade is connected.

As a preferable mode of the present utility model, the milling insert is formed with bolt holes corresponding to the mounting holes.

As a preferable mode of the utility model, the cutter head is provided with a second clearance groove, and the second clearance groove is arranged along the axial direction of the milling cutter disc.

As a preferable mode of the utility model, the second empty avoiding groove is formed at the bottom of the installation space.

As a preferred embodiment of the utility model, the milling cutter blade is simultaneously abutted against the lug and the cutter head, and the milling cutter blade is flush with the end of the lug.

As a preferred embodiment of the utility model, the side surfaces of the milling cutter blade are flush with the side surfaces of the cutter head.

As a preferable scheme of the utility model, a mounting groove for mounting the milling cutter disc is formed in the middle of the milling cutter disc, and two oppositely arranged key grooves are formed in the mounting groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the cutting tool bit that sets up on the milling cutter piece, the cutting tool bit includes two at least cutting heads, when the helicla flute processing to the impact drill both sides, two cutting heads can process two helicla flute simultaneously, thereby realized the one shot forming of helicla flute, improved the efficiency of processing, simultaneously through setting up first clearance groove at the top of tool bit, be formed with the cutting edge groove that corresponds with first clearance groove on the cutting tool bit, when processing the helicla flute of impact drill, avoided cutting tool bit and tool bit to the impact drill of course of working to the damage that causes impact drill and tool bit and cutting tool bit, the security in the course of working has been guaranteed;

2. under the action of the first clearance groove, the cutting edge groove and the second clearance groove arranged in the installation space, chips generated in the machining process can be discharged, so that chips are prevented from accumulating at the cutting tool bit and affecting the machining of the spiral groove;

3. through the lug that sets up in tool bit one side, when the installation milling cutter piece, the milling cutter piece butt is on the lug, at milling cutter piece working process, has avoided the milling cutter piece to appear rotatory condition through the spacing of lug to the milling cutter piece to the quality of helical groove processing has been guaranteed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic view of the structure of the cutter head;

FIG. 4 is a schematic view of a milling insert

Reference numerals: milling cutter head 1, mounting groove 101, key groove 102, cutter head 2, projection 201, mounting space 202, mounting hole 203, first clearance groove 204, second clearance groove 205, cutter blade 3, cutting edge groove 301, bolt hole 302, cutting head 303, and cutting head 3031.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, a three-sided milling cutter comprises a milling cutter disc 1 and a plurality of cutter heads 2 formed on the circumferential direction of the milling cutter disc 1, wherein corresponding milling cutter blades 3 are mounted on the cutter heads 2, protruding blocks 201 are formed on one sides of the cutter heads 2, a mounting space 202 for mounting the milling cutter blades 3 is formed between the protruding blocks 201 and the cutter heads 2, a cutting cutter head 303 is formed on the milling cutter blade 3, and the cutting cutter head 303 comprises at least two cutting heads 3031 which are arranged in a flush manner.

Further, the plurality of cutter heads 2 are uniformly and equidistantly arranged on the side face of the milling cutter disc 1, the orientations of the plurality of cutter heads 2 are the same, and the end faces of the cutter heads 2 are arranged in parallel with the radial direction of the milling cutter disc 1; the bump 201 is located at an end of the tool bit 2, and an end surface of the bump 201 is parallel to an end surface of the tool bit 2.

The cutting heads 303 are positioned at two ends of the milling blade 3, and when the cutting heads 303 at one end of the cutting heads 303 are damaged, the cutting heads 303 at the other end of the milling blade 3 and the damaged cutting heads 303 can be directly changed in position, so that the milling blade 3 can be continuously used, and the production cost is reduced.

The top of tool bit 2 is formed with first clearance groove 204, be formed with on the cutting tool bit 303 with the corresponding cutting edge groove 301 of first clearance groove 204, first clearance groove 204 is linked together with corresponding cutting edge groove 301, first clearance groove 204 sets up along the direction of rotation of tool bit 2, cutting edge groove 301 on the cutting tool bit 303 is located between two cutting heads 3031, when making milling blade 3 when the helicla flute of percussion drill through first clearance groove 204 and cutting edge groove 301, avoid milling blade 3 to collide with tool bit 2 and strike the drill, thereby avoid the damage of milling blade 3 and percussion drill, simultaneously under the effect of first clearance groove 204 and cutting edge groove 301, can discharge the piece that produces in the course of working, thereby avoided the piece to pile up in cutting tool bit department and to the processing of helicla flute to cause the influence.

The first clearance groove 204 is flush with the corresponding cutting edge groove 301, so that the cutting head 3031 is ensured not to be higher than the cutter head 2, the cutter head 2 plays a role in protecting the cutting head 3031, and the cutting edge on the cutting head 3031 is prevented from being damaged due to collision of the cutting head 3031, so that the processing quality is influenced.

The milling head 2 is formed with a mounting hole 203 connected with the milling blade 3, the mounting hole 203 is positioned at the center of the milling head 2, and the milling blade 3 is connected and fixed with the milling head 2 through bolts.

The milling insert 3 is formed with bolt holes 302 corresponding to the mounting holes 203.

The cutter head 2 is provided with the second clearance groove 205, the second clearance groove 205 is arranged along the axial direction of the milling cutter disc 1, the second clearance groove 205 is formed at the bottom of the installation space 202, further, the second clearance groove 205 is of a circular arc structure, the bottom end of the cutter blade 3 is abutted against the second clearance groove 205, the cutter head 303 positioned at the bottom of the cutter blade 3 is prevented from colliding with the bottom of the installation space 202 when the cutter blade 3 is installed under the action of the second clearance groove 205, so that the cutter head 3031 is damaged, and meanwhile, the cutter head 3031 can be discharged through the second clearance groove 205 to generate scraps in the spiral groove machining process, so that the scraps are prevented from being accumulated on the cutter blade 3, and the influence of the scraps on the machining of the spiral groove is avoided.

The milling cutter blade 3 is simultaneously abutted with the lug 201 and the cutter head 2, the end of the milling cutter blade 3 is flush with the lug 201, the side surface of the milling cutter blade 3 is flush with the side surface of the cutter head 2, specifically, the surface of the milling cutter blade 3 is located on the same plane with the end of the lug 201, the milling cutter blade 3 is abutted with the end surface of the cutter head 2 under the fastening of a bolt, and the side surface of the milling cutter blade 3 is located on the same plane with the side surface of the cutter head 2, so that the milling cutter blade 3 is located in the size range of the cutter head 2, the milling cutter blade 3 is prevented from colliding due to exceeding the size range of the cutter head 2, and the safety of the milling cutter blade 3 is ensured.

The middle part of milling cutter dish 1 is formed with the mounting groove 101 that is used for installing milling cutter dish 1, is formed with two keyway 102 that set up relatively on the mounting groove 101, can realize the installation fixed to milling cutter dish 1 through mounting groove 101, can ensure the firm of milling cutter dish 1 through two keyway 102 that set up symmetrically simultaneously.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more herein: milling cutter disc 1, mounting groove 101, key groove 102, cutter head 2, projection 201, mounting space 202, mounting hole 203, first clearance groove 204, second clearance groove 205, cutter blade 3, cutting edge groove 301, bolt hole 302, cutting head 303, cutting head 3031, etc., but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The three-edge milling cutter comprises a milling cutter disc (1) and a plurality of cutter heads (2) formed in the circumferential direction of the milling cutter disc (1), wherein corresponding milling cutter blades (3) are installed on the cutter heads (2), and the three-edge milling cutter is characterized in that a lug (201) is formed on one side of each of the cutter heads (2), an installation space (202) for installing the milling cutter blades (3) is formed between each lug (201) and each cutter head (2), a cutting cutter head (303) is formed on each milling cutter head (3), and each cutting cutter head (303) comprises at least two cutting heads (3031) which are arranged in parallel; the top of the tool bit (2) is provided with a first clearance groove (204), and the cutting tool bit (303) is provided with a cutting edge groove (301) corresponding to the first clearance groove (204).

2. The face milling cutter according to claim 1, wherein the first clearance groove (204) communicates with the corresponding cutting edge groove (301).

3. The face milling cutter according to claim 2, wherein the first relief groove (204) is flush with the corresponding cutting edge groove (301).

4. A three-sided milling cutter according to claim 1, characterized in that the cutter head (2) is formed with a mounting hole (203) for connection with the milling insert (3).

5. The three-sided milling cutter according to claim 4, wherein the milling insert (3) is formed with bolt holes (302) corresponding to the mounting holes (203).

6. The three-sided milling cutter according to claim 1, characterized in that the cutter head (2) is formed with a second clearance groove (205), the second clearance groove (205) being arranged in the axial direction of the milling cutter head (1).

7. The three-sided milling cutter according to claim 6, wherein the second void-avoidance groove (205) is formed at the bottom of the installation space (202).

8. The three-sided milling cutter according to claim 1, characterized in that the milling insert (3) is simultaneously in abutment with the lug (201) and the cutter head (2), and that the milling insert (3) is flush with the end of the lug (201).

9. A three-sided milling cutter according to claim 8, characterized in that the side of the milling insert (3) is flush with the side of the cutter head (2).

10. The three-sided milling cutter according to claim 1, wherein a mounting groove (101) for mounting the milling cutter disc (1) is formed in the middle of the milling cutter disc (1), and two oppositely arranged key grooves (102) are formed in the mounting groove (101).