CN219966664U

CN219966664U - High-precision gear cutting blade

Info

Publication number: CN219966664U
Application number: CN202320983679.5U
Authority: CN
Inventors: 袁著
Original assignee: ZHEJIANG SHANGYOU TOOLS CO Ltd
Current assignee: ZHEJIANG SHANGYOU TOOLS CO Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-11-07
Anticipated expiration: 2033-04-24

Abstract

The utility model provides a high-precision gear cutting blade, and belongs to the field of cutters. The gear hob solves the problems of low machining precision and short service life of blades of the existing gear hob. The high-precision tooth cutting blade comprises a blade holder which is arranged in a cylindrical structure, a blade holder which is arranged in a spiral structure and integrally formed with the blade holder is arranged around the periphery of the blade holder, a plurality of cutter grooves are uniformly formed in the blade holder, blades which are used for hobbing and can be turned are arranged in the cutter grooves, the blades comprise cutter bars and cutter heads which are positioned on two sides of the cutter bars, two inclined grooves I and two inclined grooves II are formed in one side of the cutter bars, two inclined grooves III and four inclined grooves IV which are symmetrical with the inclined grooves I and the inclined grooves II in a central mode are formed in the other side of the cutter bars, and a slope I which can be installed in a matched mode with the inclined grooves I and the inclined grooves III and a slope II which can be installed in a matched mode with the inclined grooves II and the inclined grooves IV are formed in the cutter grooves. The utility model has the advantages of high blade processing precision and long service life.

Description

High-precision gear cutting blade

Technical Field

The utility model belongs to the field of cutters, relates to a gear forming cutter, and particularly relates to a high-precision gear cutting blade.

Background

The gear cutter, also called a gear forming cutter, comprises a gear hobbing cutter, a gear milling cutter, a gear shaving cutter and the like, and the gear hobbing cutter has the characteristics of high production efficiency and high surface quality of a gear hobbing gear, and is widely applied to gear mass production.

Currently, the hobbing cutter on the market is generally of an integrated structure, the blade and the cutter holder are integrated into one piece, and because the hobbing cutter is larger in abrasion to the hobbing cutter, the service life of the hobbing cutter is shorter, and further the production cost is improved, so that the hobbing cutter with detachable blade appears on the market, and only the blade on the cutter holder is replaced after the blade is abraded, thereby greatly reducing the production cost. However, due to frequent disassembly and unstable connection structure of the cutter and the cutter rod, the machining precision of the cutter is affected after the cutter is disassembled for many times, so that the qualification rate of the machined gear is reduced, and the benefit is reduced.

Therefore, a high precision tooth cutting insert with a detachable insert, high machining precision and a long insert life is currently desired.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a high-precision gear cutting blade with detachable blade, higher processing precision and long service life.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a high accuracy gear cutting blade, its characterized in that, including the blade holder that is cylindrical structure setting, the blade holder periphery encircle have be spiral structure setting and with blade holder integrated into one piece's knife rest, the knife rest on evenly set up a plurality of sword groove, a plurality of sword inslot all install and be used for the gear hobbing and indexable blade, the blade contain cutter arbor and be located the tool bit of cutter arbor both sides, cutter arbor one side have two chute I and chute II, cutter arbor opposite side still have two chute III and chute IV with above-mentioned chute I and chute II central symmetry, the sword inslot have can with chute I and chute III match slope one of installation and can with chute II and chute IV match slope two of installation.

In the above-mentioned high-precision tooth cutting blade, the first inclined groove and the second inclined groove have opposite inclination directions, the third inclined groove and the fourth inclined groove have opposite inclination directions, and the first inclined slope and the second inclined slope have opposite inclination directions.

In the high-precision gear cutting blade, one side of the cutter bar is also provided with a large positioning surface for abutting against the side wall of the cutter groove, and the cutter heads on two sides are respectively provided with a small positioning surface capable of abutting against the inner wall of the cutter groove.

In the high-precision gear cutting blade, the cutter bar is further provided with the through hole which is obliquely arranged, the cutter groove is internally provided with the threaded hole which coincides with the central axis of the through hole, and the blade and the cutter rest are fastened by screws which are arranged in the through hole and the threaded hole.

In the high-precision gear cutting blade, the edge of one side of the cutter bar is also provided with a chip guiding cutting groove for removing fine chips at the cutter head, and one side of the cutter bar, which is positioned at the cutter groove, is provided with a circular arc-shaped chip removing groove.

Compared with the prior art, the high-precision gear cutting blade has the following advantages: through the slope matching installation in each chute and the sword inslot on the blade, compare in traditional only rely on screw and lateral wall to lean on, this structure can further pinpoint the blade, and can offset the reaction force that partial work piece applyed the blade at the cutting in-process, and then reduce the wearing and tearing that blade vibration produced and the error that accumulated displacement formed, improve machining precision and improve blade life-span.

Drawings

Fig. 1 is a schematic view of the installation of the present high precision tooth cutting insert.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a schematic perspective view of a blade.

Fig. 4 is a schematic perspective view of the sipe.

In the figure, 1, a tool apron; 2. a tool holder; 3. a knife slot; 4. a blade; 5. a cutter bar; 6. a cutter head; 7. a chute I; 8. a chute II; 9. a chute III; 10. a chute IV; 11. slope one; 12. slope II; 13. a large positioning surface; 14. a small positioning surface; 15. a through hole; 16. a threaded hole; 17. a screw; 18. chip guiding grooving; 19. chip removal groove.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the high-precision tooth cutting blade comprises a blade holder 1 which is arranged in a cylindrical structure, a blade holder 2 which is arranged in a spiral structure and is integrally formed with the blade holder 1 is surrounded on the periphery of the blade holder 1, a plurality of blade grooves 3 are uniformly formed in the blade holder 2, blades 4 which are used for hobbing and can be indexed are arranged in the plurality of blade grooves 3, the blades 4 comprise a cutter bar 5 and cutter heads 6 which are positioned on two sides of the cutter bar 5, two chute I7 and chute II 8 are arranged on one side of the cutter bar 5, two chute III 9 and chute IV 10 which are symmetrical with the centers of the chute I7 and the chute II 8 are arranged on the other side of the cutter bar 5, and a slope I11 which can be matched and installed with the chute I7 and the chute III 9 and a slope II 12 which can be matched and installed with the chute II 8 and the chute IV 10 are arranged in the blade groove 3.

Further, the inclined directions of the first inclined groove 7 and the second inclined groove 8 are opposite, the inclined directions of the third inclined groove 9 and the fourth inclined groove 10 are opposite, the inclined directions of the first inclined groove 11 and the second inclined groove 12 are opposite, the mounting areas of the left side and the right side of the blade 4 after being mounted are guaranteed to be the same, and further the blade 4 and the tool rest 2 are guaranteed to be uniformly stressed, and lateral movement and rotation are not easy to occur.

Preferably, one side of the cutter bar 5 is also provided with a large positioning surface 13 for abutting against the side wall of the cutter groove 3, and the cutter heads 6 on both sides are provided with small positioning surfaces 14 capable of abutting against the inner wall of the cutter groove 3.

Preferably, the cutter bar 5 is also provided with a through hole 15 which is obliquely arranged, the cutter groove 3 is internally provided with a threaded hole 16 which is coincident with the central axis of the through hole 15, and the cutter blade 4 and the cutter rest 2 are fastened by adopting screws 17 which are arranged in the through hole 15 and the threaded hole 16.

Preferably, the corner on one side of the cutter bar 5 is also provided with a chip guiding cutting groove 18 for removing fine chips on the cutter head 6, and the cutter rest 2 is provided with a circular arc-shaped chip removing groove 19 on one side of the cutter groove 3.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the insert holder 1, the insert holder 2, the insert pocket 3, the insert 4, the insert holder 5, the insert head 6, the first chute 7, the second chute 8, the third chute 9, the fourth chute 10, the first ramp 11, the second ramp 12, the large locating surface 13, the small locating surface 14, the through hole 15, the threaded hole 16, the screw 17, the chip-guiding slot 18, the chip-discharging slot 19 are used more herein, 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 utility model provides a high accuracy gear cutting blade, its characterized in that, including blade holder (1) that is cylindrical structure setting, blade holder (1) periphery encircle have be spiral structure setting and with blade holder (1) integrated into one piece's knife rest (2), knife holder (2) on evenly offer a plurality of sword groove (3), a plurality of sword groove (3) in all install be used for hobbing and indexable blade (4), blade (4) contain cutter arbor (5) and be located cutter arbor (5) tool bit (6) of both sides, cutter arbor (5) one side have two chute one (7) and chute two (8), cutter arbor (5) opposite side still have two and above-mentioned chute one (7) and chute two (8) central symmetry's chute three (9) and chute four (10), sword groove (3) in have slope one (11) that can match the installation with chute one (7) and chute three (9) and slope two (12) that can match installation with chute two (8) and four (10).

2. The high precision tooth cutting blade as claimed in claim 1, wherein the first inclined groove (7) is inclined in a direction opposite to that of the second inclined groove (8), the third inclined groove (9) is inclined in a direction opposite to that of the fourth inclined groove (10), and the first inclined groove (11) is inclined in a direction opposite to that of the second inclined groove (12).

3. A high precision tooth cutting insert as claimed in claim 1, characterized in that one side of the shank (5) is provided with a large locating surface (13) for abutment against the side wall of the pocket (3), and that the cutting heads (6) on both sides are provided with small locating surfaces (14) for abutment against the inner wall of the pocket (3).

4. The high-precision gear cutting blade according to claim 1, wherein the cutter bar (5) is further provided with a through hole (15) which is obliquely arranged, the cutter groove (3) is internally provided with a threaded hole (16) which coincides with the central axis of the through hole (15), and the blade (4) and the cutter rest (2) are fastened by adopting screws (17) which are arranged in the through hole (15) and the threaded hole (16).

5. A high precision tooth cutting insert as claimed in claim 1, characterized in that the corner of the shank (5) is provided with a chip guiding slot (18) for removing fine chips from the cutting head (6), and the shank (2) is provided with a circular arc-shaped chip removing groove (19) on the side of the cutting slot (3).