CN220216848U

CN220216848U - Single-head gear milling cutter

Info

Publication number: CN220216848U
Application number: CN202321621171.7U
Authority: CN
Inventors: 马五星; 于文涛; 徐海州; 吕良兆
Original assignee: Qingdao Greer Transmission Technology Co ltd
Current assignee: Qingdao Greer Transmission Technology Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-12-22
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a single-head gear milling cutter, which belongs to the technical field of gear processing cutters and comprises a cutter disc, and large blades and small blades fixed on the cutter disc, wherein the large blades and the small blades are uniformly distributed on the cutter disc at intervals in an array mode, a first inclined chip removing groove is formed in the front end of each large blade on the cutter disc, a second inclined chip removing groove is formed in the front end of each small blade on the cutter disc, and inclined chip removing grooves are formed in the front ends of the large blades and the small blades, so that scrap iron generated at cutting positions of the blades can be discharged through the inclined chip removing grooves in time in the cutting process of the cutter, the inclination angle of the first inclined chip removing grooves is larger than that of the second inclined chip removing grooves, and the first inclined chip removing grooves are matched with the second inclined chip removing grooves to enable scrap iron generated in cutting to be enabled to be separated from the cutter body and the surface of a gear rapidly, and the surface of the scrap iron is prevented from being scratched.

Description

Single-head gear milling cutter

Technical Field

The utility model relates to the technical field related to gear machining cutters, in particular to a single-head gear milling cutter.

Background

The gear machining tool is a gear machining tool dedicated to cutting various gear tooth profiles. The gear machining cutter can be divided into a straight tooth gear cutter, an arc tooth gear cutter, an extended outer cycloidal gear cutter and the like according to the types of gears to be cut, and the existing gear machining cutter head has the defects that scrap iron is not easy to discharge and the surface of a workpiece is easily scratched due to unreasonable arrangement of a chip groove in the cutting process.

Disclosure of Invention

The utility model provides a single-head gear milling cutter, which aims to solve the technical defects.

The specific technical scheme provided by the utility model is as follows:

the utility model provides a single-head gear milling cutter which comprises a cutter disc, and large blades and small blades fixed on the cutter disc, wherein the large blades and the small blades are uniformly distributed on the cutter disc at intervals, a first inclined chip groove is formed in the front end of each large blade on the cutter disc, a second inclined chip groove is formed in the front end of each small blade on the cutter disc, and the inclination angle of the first inclined chip groove is larger than that of the second inclined chip groove.

Optionally, 16 large blades and 16 small blades are uniformly distributed on the cutterhead, and the large blades and the small blades are embedded and fixed on the cutterhead.

Optionally, a cutter mounting groove and a threaded hole are formed in the cutter, and the large blade and the small blade are embedded and fixed in the threaded hole formed in the cutter by bolts.

Optionally, both sides of blade disc all are provided with installation flange and keyway, the middle part of installation flange is provided with the through-hole, still be provided with the screw hole on the installation flange.

Optionally, the depth of the first inclined junk slots is greater than the depth of the second inclined junk slots.

Optionally, the cross sections of the first inclined junk slots and the second inclined junk slots are parabolic structures.

Optionally, the rear end face and the side face of the big blade and the small blade are both abutted on the side wall of the cutter head mounting groove.

Optionally, the cutting rake angle and the cutting relief angle of the large blade and the small blade after being fixed on the cutter head are respectively 8-15 degrees and 2-5 degrees.

The utility model has the following beneficial technical effects:

the embodiment of the utility model provides a single-head gear milling cutter which comprises a cutter disc, and large blades and small blades fixed on the cutter disc, wherein the large blades and the small blades are uniformly distributed on the cutter disc at intervals, a first inclined chip groove is formed in the front end of each large blade on the cutter disc, a second inclined chip groove is formed in the front end of each small blade on the cutter disc, and the inclined chip grooves are formed in the front ends of the large blades and the small blades, so that scrap iron generated at cutting positions of the blades in the cutting process of the cutter can be discharged through the inclined chip grooves in time.

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, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a single-head gear milling cutter according to an embodiment of the present utility model;

fig. 2 is a schematic front view of a single-head gear milling cutter according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of a single-head gear milling cutter according to an embodiment of the present utility model;

fig. 4 is a schematic top view of a single-head gear milling cutter according to an embodiment of the present utility model;

fig. 5 is an enlarged partial schematic view of the portion a in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes a single-head gear milling cutter according to an embodiment of the present utility model in detail with reference to fig. 1 to 5.

Referring to fig. 1-5, the single-head gear milling cutter provided by the embodiment of the utility model comprises a cutter head 1, a large blade 2 and a small blade 3 which are fixed on the cutter head 1, wherein the large blade 2 and the small blade 3 are uniformly arranged on the cutter head 1 at intervals, a first inclined chip groove 4 is formed in the front end of each large blade 2 on the cutter head 1, a second inclined chip groove 5 is formed in the front end of each small blade 3 on the cutter head 1, and the inclination angle of the first inclined chip groove 4 is larger than that of the second inclined chip groove 5; the front ends of the large blade and the small blade are respectively provided with the inclined chip grooves, so that scrap iron generated at the cutting part of the blade in the cutting process of the cutter can be discharged through the inclined chip grooves in time, moreover, the inclined angle of the first inclined chip groove is larger than that of the second inclined chip groove, and the first inclined chip groove is matched with the second inclined chip groove to promote the scrap iron generated by cutting to be separated from the cutter body and the gear surface rapidly, so that the scrap iron is prevented from scratching the gear surface.

Further, referring to fig. 1, 2, 3 and 4, 16 large blades 2 and 16 small blades 3 are uniformly distributed on the cutter head 1, and the large blades 2 and the small blades 3 are embedded and fixed on the cutter head 1, so that the cutter can be uniformly stressed in the processing process, and the cutting effect and the longer service life can be better achieved. The large blade 2 and the small blade 3 are both installed on the cutter head 1 in an embedded and fixed mode, so that the interference influence of the blade body in the cutting process can be avoided. Specifically, a cutter head mounting groove 6 and a threaded hole 7 are formed in the cutter head 1, and the large cutter blade 2 and the small cutter blade 3 are embedded and fixed in the cutter head mounting groove 6 formed in the cutter head 1 through bolts.

Referring to fig. 1, 2, 3 and 4, both sides of the cutterhead 1 are provided with a mounting boss 8 and a key slot 9, the middle part of the mounting boss 8 is provided with a through hole 10, the mounting boss 8 is further provided with a screw hole 11, and connection between the cutterhead 1 and a fixed shaft is realized through the mounting boss 8 and the key slot 9.

Referring to fig. 1, 2, 3 and 4, the depth of the first inclined junk slots 4 is greater than the depth of the second inclined junk slots 5. The cross sections of the first inclined chip groove 4 and the second inclined chip groove 5 are of parabolic structures, so that the inclined chip grooves can accelerate the separation between scrap iron and the cutter body and between the scrap iron and the workpiece, and the scrap iron is not easy to scratch the surface of the workpiece.

Referring to fig. 1, 2, 3 and 4, the rear end faces and the side faces of the large blade 2 and the small blade 3 are all abutted against the side wall of the cutter disc mounting groove 6, so that the fixing reliability and the cutting strength of the large blade 2 and the small blade 3 can be improved, and when the cutter is used for cutting, the rear end faces and the side faces of the blades can be stressed by the cutter body, and meanwhile, the cut profile is ensured to be more accurate and stable. The cutting rake angle and the cutting relief angle of the large blade 2 and the small blade 3 after being fixed on the cutter head 1 are respectively 8-15 degrees and 2-5 degrees, so that the cutter has the characteristics of lower cutting force, higher speed, better chip removal and longer service life in the cutting process.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present utility model without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present utility model fall within the scope of the claims and the equivalents thereof, the present utility model is also intended to include such modifications and variations.

Claims

1. The utility model provides a single-end gear milling cutter, its characterized in that, single-end gear milling cutter includes the blade disc, fixes big blade and the little blade on the blade disc, big blade with little blade evenly spaced array arranges on the blade disc, on the blade disc at each big blade's front end all is provided with first slope chip groove, on the blade disc at each the front end of little blade all is provided with a second slope chip groove, and the inclination of first slope chip groove is greater than the inclination of second slope chip groove.

2. The single-head gear milling cutter according to claim 1, wherein 16 large blades and 16 small blades are uniformly distributed on the cutter disc, and the large blades and the small blades are embedded and fixed on the cutter disc.

3. The single-head gear milling cutter according to claim 2, wherein a cutter mounting groove and a threaded hole are formed in the cutter, and the large blade and the small blade are embedded and fixed in the threaded hole formed in the cutter by bolts.

4. The single-head gear milling cutter according to claim 1, wherein mounting bosses and key slots are arranged on two sides of the cutter head, a through hole is formed in the middle of each mounting boss, and screw holes are further formed in each mounting boss.

5. The single head gear milling cutter of claim 1 wherein the depth of the first angled junk slots is greater than the depth of the second angled junk slots.

6. The single head gear milling cutter of claim 1 wherein the first and second inclined flutes are parabolic in cross-section.

7. The single-head gear milling cutter according to claim 3, wherein the rear end surfaces and the side surfaces of the large blade and the small blade are abutted against the side wall of the cutter head mounting groove.

8. A single-head gear milling cutter according to claim 1 or 3, wherein the cutting rake angle and the cutting relief angle after the large blade and the small blade are fixed on the cutterhead are 8 ° -15 ° and 2 ° -5 °, respectively.