CN113523449A

CN113523449A - Hobbing cutter before grinding with small modulus and indexable blades

Info

Publication number: CN113523449A
Application number: CN202111016400.8A
Authority: CN
Inventors: 范晓海; 王斌; 朱广涛
Original assignee: Meigeli Zhejiang Technology Co ltd
Current assignee: Meigeli Zhejiang Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-10-22

Abstract

The invention provides a small-modulus indexable cutter blade pre-grinding hob, and belongs to the technical field of cutters. It has solved the problem that can't change after the blade wearing and tearing of current hobbing cutter. This hobbing cutter before little modulus indexable insert grinds, including the cutter body and around a plurality of base member on the cutter body perisporium, install the blade groove that a plurality of blade and a plurality of supply corresponding blade installation on the cutter body, a blade terminal surface is terminal surface A, and another terminal surface is terminal surface B, still is equipped with the mounting groove that compresses tightly the voussoir and supply to compress tightly the voussoir installation on the base member, and base member one end has outside bellied location bead, has the constant head tank that supplies the location bead to stretch into on the terminal surface A of blade. The invention has the advantages of convenient blade disassembly and assembly, long service life of the whole cutter and good use effect.

Description

Hobbing cutter before grinding with small modulus and indexable blades

Technical Field

The invention belongs to the technical field of cutters, relates to a hob, and particularly relates to a small-modulus indexable cutter before grinding.

Background

The hob is a gear processing cutter with cutter teeth arranged along a cylinder or a cone in a spiral line. The blade in the existing hob is made of high-speed steel and is usually integrally formed with the hob body, and in the actual machining process, the blade is easy to wear after being used for a period of time, needs to be polished, is relatively troublesome in process, and needs to be replaced for the whole hob if the blade is seriously damaged, so that the replacement cost is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a small-modulus indexable cutter before grinding, which can be used for independently replacing a worn cutter without replacing the whole cutter, so that the replacement cost is reduced.

The purpose of the invention can be realized by the following technical scheme: a hob before grinding of a small module indexable insert is characterized by comprising a hob body and a plurality of base bodies surrounding the circumferential wall of the hob body, wherein the hob body is provided with a plurality of inserts and a plurality of insert grooves for installing corresponding inserts, one end face of each insert is an end face A, the other end face of each insert is an end face B, the base bodies are further provided with pressing wedges and mounting grooves for installing the pressing wedges, one end of each base body is provided with a positioning convex edge protruding outwards, the end face A of each insert is provided with a positioning groove for the positioning convex edge to extend into, the positioning convex edges are provided with a plurality of positioning surfaces C, the positioning grooves are provided with a plurality of positioning surfaces C1 attached to the corresponding positioning surfaces C, the end face of the base body is further provided with a plurality of positioning surfaces D1 attached to the corresponding positioning surfaces D, the pressing wedge block is provided with a ridge F which is abutted against the end face B of the corresponding blade, and the pressing wedge block is fixedly arranged on the mounting groove through a fixing piece.

In the small-modulus indexable insert before-grinding hob, the fixing piece is a stud bolt.

In the hob before grinding with the indexable insert with small modulus, the groove surface of the mounting groove is provided with a first threaded hole, the pressing wedge block is provided with a second threaded hole, and the first threaded hole is in threaded connection with the second threaded hole through a stud bolt.

In the small module indexable insert before grinding hob, the positioning surface C and the positioning surface C1 are both inclined surfaces.

In the small-modulus indexable insert before-grinding hob, both sides of the insert are provided with insert convex parts which extend outwards, and inclined slope surfaces are arranged on the insert convex parts and between the insert convex parts and the insert.

Compared with the prior art, the small-modulus indexable blade pre-grinding hob has the following advantages:

1. the blade in the hob before the small-modulus indexable blade is ground is stably arranged on the blade groove, the positioning in all directions is firm, the displacement and the shaking are not easy to occur, the connection stability of the blade is higher, and the working effect achieved by the blade is better;

2. the blades are detachably connected, so that the whole cutter does not need to be replaced after the single blades are worn, the blades are convenient to replace, and the use cost of the cutter is reduced;

3. the blade is made of hard alloy materials, so that the cutter has the using effect of long service life and high efficiency, the blade is prevented from being frequently replaced, and the service life of the blade is prolonged.

Drawings

Fig. 1 is a schematic perspective view of the hob before grinding with the small module indexable insert.

Fig. 2 is an enlarged structural schematic diagram of the hob before grinding of the small module indexable insert.

Fig. 3 is a perspective view of the blade.

FIG. 4 is a mating view of the insert and compression wedge.

In the figure, 1, a cutter body; 2. a substrate; 3. a blade; 4. compressing the wedge block; 5. positioning the convex ribs; 6. positioning a groove; 7. a fixing member; 8. a blade boss; 9. a slope surface.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the hob for milling front of a small module indexable insert comprises a hob body 1 and a plurality of base bodies 2 surrounding the circumferential wall of the hob body 1, wherein the hob body 1 is provided with a plurality of inserts 3 and a plurality of insert 3 slots for installing corresponding inserts 3, one end surface of each insert 3 is an end surface a, the other end surface of each insert 3 is an end surface B, the base body 2 is further provided with a pressing wedge 4 and an installation slot for installing the pressing wedge 4, one end of the base body 2 is provided with an outward convex positioning rib 5, the end surface a of each insert 3 is provided with a positioning slot 6 for extending the positioning rib 5, the insert 3 is axially limited by the matching of the positioning rib 5 and the positioning slot 6, the positioning rib 5 is provided with a plurality of positioning surfaces C, the positioning slot 6 is provided with a plurality of positioning surfaces C1 attached to the corresponding positioning surfaces C, the end surface of the base body 2 is further provided with a plurality of positioning surfaces D, the end face A of the blade 3 is provided with a plurality of positioning faces D1 which are attached to corresponding positioning faces D, the compression wedge block 4 is provided with a ridge F which is abutted to the end face B of the corresponding blade 3, the compression wedge block 4 is fixedly arranged on the mounting groove through a fixing piece 7, the positioning face C is attached to and positioned with the positioning face C1 to realize axial limiting of the blade 3, the positioning face D is attached to and positioned with the positioning face D1 and is matched with the compression effect of the compression wedge block 4 to realize radial positioning of the blade 3, the compression wedge block 4 is in line-surface contact with the blade 3, and more effective compression effect is realized, so that the blade 3 is fixedly limited in the groove of the blade 3; meanwhile, the replaceable blade 3 can independently replace the worn blade 3, so that the service life of the cutter is prolonged.

Preferably, the fixing member 7 is a stud bolt.

Preferably, a first threaded hole is formed in the groove surface of the mounting groove, a second threaded hole is formed in the pressing wedge block 4, and the first threaded hole is connected with the second threaded hole through a stud bolt.

Preferably, the positioning surface C and the positioning surface C1 are both inclined surfaces.

Preferably, both sides of the blade 3 are provided with blade protrusions 8 protruding outwards, and inclined slope surfaces 9 are arranged on the blade protrusions 8 and between the blade protrusions and the blade 3.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The small-modulus indexable insert pre-grinding hob is characterized by comprising a hob body (1) and a plurality of base bodies (2) surrounding the circumferential wall of the hob body (1), wherein the hob body (1) is provided with a plurality of inserts (3) and a plurality of insert (3) grooves for installing the corresponding inserts (3), one end face of each insert (3) is an end face A, the other end face of each insert is an end face B, the base body (2) is also provided with a pressing wedge block (4) and an installation groove for installing the pressing wedge block (4), one end of the base body (2) is provided with a positioning convex edge (5) protruding outwards, the end face A of each insert (3) is provided with a positioning groove (6) for the positioning convex edge (5) to extend into, the positioning convex edge (5) is provided with a plurality of positioning surfaces C, and the positioning groove (6) is provided with a plurality of positioning surfaces C1 attached to the corresponding positioning surfaces C, still have a plurality of locating surface D on this terminal surface of base member (2), have a plurality of locating surface D1 with the laminating of corresponding locating surface D on the terminal surface A of blade (3), compress tightly the edges and strips F that have and contradict with the terminal surface B of corresponding blade (3) on voussoir (4), compress tightly voussoir (4) through mounting (7) fixed mounting on the mounting groove.

2. The low modulus indexable insert premill hob according to claim 1, characterized in that the fixture (7) is a stud bolt.

3. The front grinding hob for the small-modulus indexable insert according to claim 1, wherein a first threaded hole is formed in a groove surface of the mounting groove, a second threaded hole is formed in the pressing wedge block (4), and the first threaded hole is in threaded connection with the second threaded hole through a stud bolt.

4. The small module indexable insert premolishing hob of claim 1 wherein the locating surface C and the locating surface C1 are both inclined surfaces.

5. The front grinding hob of a small module indexable insert according to claim 1, characterized in that, both sides of the insert (3) are provided with outwardly extending raised insert protrusions (8), and the insert protrusions (8) are provided with inclined ramp surfaces (9) obliquely arranged with the insert (3).