CN211564637U - Gear finish milling blade with four cutting edges - Google Patents

Abstract

The utility model discloses a gear finish milling blade with four cutting edges, which comprises a base body configured into a rectangular structure; wherein the largest two surfaces of the base body are configured as mounting surfaces; and the positions of the matrix, which are matched with the long edges of the mounting surfaces, are respectively provided with a curve-shaped cutting edge matched with the gear parameters. The utility model provides a gear finish milling blade of four-edged orifice, it can be through the cutting edge with original processing gear involute profile of tooth in the blade, increase to 4 blades by original 2 blades, make its blade quantity increase one time, the life of blade promotes one time, use cost has reduced 50%.

Description

Gear finish milling blade with four cutting edges

Technical Field

The utility model relates to a gear tooth's socket finish machining among the machining takes shape technical field. More specifically, the utility model relates to a directly accomplish the gear finish milling cutter piece of the fine-machined four blades of gear profile of tooth in gear profile of tooth processing.

Background

Gear milling cutters generally comprise: the cutter comprises a plurality of blades for finishing gear tooth-shaped finish milling operation and a cutter head (cutter body) for mounting each blade, wherein a plurality of cutter grooves and a plurality of cutter blade seats matched with the blades are arranged on the circumferential surface of the cutter head according to requirements; the blades are mounted on the blade seats such that the cutting edges of the blades extend beyond the periphery of the cutterhead, and the outer profile of the cutting edges of the blades is generally configured to match the shape of the tooth grooves of the gear being machined.

As shown in fig. 2, in the prior art, the gear finish milling blade is generally provided with only two cutting edges, so that the number of the cutting edges is small, the utilization rate of the cutting edges is low, the overall machining service life of the blade is short, and the use cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

The utility model discloses it is also an object to provide a gear finish milling blade of four-edged orifice, its cutting edge that can be through the blade in with original processing gear involute profile of tooth increases to 4 blades by original 2 blades, makes its blade quantity increase one time, and the life of blade promotes one time, and use cost has reduced 50%.

To achieve these objects and other advantages in accordance with the purpose of the invention, a four-edged gear finish milling insert is provided, including a base configured in a rectangular structure;

wherein the largest two surfaces of the base body are configured as mounting surfaces;

and the positions of the matrix, which are matched with the long edges of the mounting surfaces, are respectively provided with a curve-shaped cutting edge matched with the gear parameters.

Preferably, the base body is provided with a front corner groove matched with the distribution direction of the cutting edge on the long side surface matched with each long side.

Preferably, the rake groove is configured to intersect each cutting edge.

Preferably, each mounting surface is configured to have an inwardly-contracted curved surface at the cutting edge, so that each cutting edge is spatially curved under the action of the curved surface.

Preferably, the mounting surface has a fixing surface spatially higher than the curved surface under the action of each curved surface so as to be matched with the mounting groove on the cutter body.

Preferably, the blade is provided with a fixing hole matched with the cutter body mounting groove;

the fixing hole is provided with a fixing part matched with a screw on the screw at the center of the blade;

the fixing parts are arranged on one side matched with each mounting surface and are respectively provided with an expansion part matched with the nut end on the screw;

the expansion parts and the fixing parts are connected in a transition mode through matched contraction parts.

The utility model discloses at least, include following beneficial effect: one of which, the utility model discloses can increase to 4 blades by original 2 blades through the cutting edge with original processing gear involute profile of tooth to the blade, make its blade quantity increase one time, improve the utilization ratio of blade for the life of blade promotes one time, and use cost has reduced 50%, and the practicality is stronger, and adaptability is better.

And secondly, the utility model discloses can be through seting up the matched with preceding corner groove in each blade department for the cutting force of blade reduces relatively, and the cutting is lighter fast, and the volume bits is effectual, promotes the cutting performance of blade.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a front view structural schematic diagram of a gear finishing milling cutter blade with four cutting edges according to an embodiment of the present invention;

FIG. 2 is a schematic view of a prior art insert configuration for a gear milling cutter;

fig. 3 is a schematic front view of a gear finishing milling insert with four cutting edges according to an embodiment of the present invention;

fig. 4 is a schematic side perspective view of a four-edged gear finishing milling insert according to an embodiment of the present invention;

fig. 5 is a schematic top view of a four-edged gear finishing insert according to an embodiment of the present invention;

FIG. 6 is a side view of the structure of FIG. 2;

fig. 7 is a schematic top view of fig. 2.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Fig. 1 and 3-5 show a four-edge gear finish milling blade implementation form of the present invention, which includes a rectangular base 1 (including a rectangular structure and a text structure), and the structure of the base allows more cutting edges to be provided, and after the base is assembled with a cutter groove on a cutter body, the reliability of the base and the cutter groove is better during processing, so as to ensure the structural stability of the blade during processing;

the largest two surfaces of the base body are configured to be mounting surfaces 2, preferably a cuboid structure is adopted, and the relatively larger upper and lower end surfaces of the cuboid structure are set to be the mounting surfaces, so that the stability of the base body in matching with the cutter body is ensured;

the base body is provided with a curved cutting edge 3 matched with gear parameters at the position matched with the long edge of each mounting surface respectively, each mounting surface has two long edges in a rectangular structure due to the largest area, the matched cutting edge is arranged on each long edge to ensure the processing effect, and simultaneously matched with the depth of a tooth socket, the base body of the blade has two large surfaces (upper and lower end surfaces), two long edge surfaces (front and back surfaces) and two short edge surfaces (side surfaces), the cutting edges are respectively arranged at the positions close to the long edges at the two sides of the large surfaces, four cutting edges for finish milling are arranged in space, compared with the two cutting edges in the prior art, the cutting edges are doubled, the utilization rate of the blade can be effectively improved in the scheme, the service life of the blade is doubled, the use cost is reduced by 50%, and the practicability is stronger, the adaptability is better.

As shown in fig. 1, in another example, the base body is provided with rake grooves 5 matched with the distribution direction of the cutting edges on the long side surfaces 4 matched with the long sides, and the scheme can obtain 4 rake grooves matched with the cutting edges by providing the matched rake grooves on one side of the long side surfaces of the cutting edges, so that the cutting force of the blade is relatively reduced, the cutting is light and fast, the chip curling effect is good, and the cutting performance of the blade is improved.

In another example, as shown in fig. 1, 3-4, the rake grooves are configured to intersect with the respective cutting edges, in this scheme, by intersecting the cutting edges with the rake grooves, the curved cutting edges required for finish machining are formed, and after being mounted on the cutter body, the involute tooth profile required by the customer can be finally completed in one time after being combined with the compound angle carried on the cutter body and the cutter grooves.

In another example, as shown in fig. 1, each of the mounting surfaces is configured with inwardly-tapered curved surfaces 6 at both ends of the cutting edge, so that the cutting edges are spatially distributed in a curve under the action of the curved surfaces, the cutting edges are curves related to gear parameters, and after the blades are assembled on a specific gear milling cutter disc, the cutter disc rotates to form an involute curve associated with the specific gear.

In another example, as shown in fig. 1, the mounting surface has a fixing surface 7 spatially higher than the curved surface under the action of each curved surface to match with the mounting groove on the cutter body, and the fixing surface in this scheme has a larger mounting area, and the spatial height positions of the fixing surface and the cutting edge can be staggered, so that the interference between the fixing surface and the cutting edge is ensured to be smaller, and the using smoothness and the processing finish degree are better.

In another example, as shown in fig. 1 and 5, the blade is provided with a fixing hole 8 matched with the blade body mounting groove, and the blade is fixed by matching the blade with the blade body mounting groove through the fixing hole;

the fixing hole is provided with a fixing part 80 matched with a screw rod on the screw at the center of the blade, and the fixing part is used for realizing interference between the blade and the screw and ensuring the structural connection stability of equipment;

the fixing parts are respectively provided with an expansion part 81 matched with the nut end on the screw at one side matched with each mounting surface, and the expansion parts are used for limiting the position of a nut in the screw so as to ensure the flatness of the surface of the blade after the blade is mounted;

the expansion parts and the fixing parts are connected in a transition mode through matched contraction parts 82, and the contraction parts ensure the matched combination tightness between the screw and the external structure of the blade and further ensure the installation stability of the blade.

The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. A four-edged gear finishing insert comprising a base configured in a rectangular configuration;

wherein the largest two surfaces of the base body are configured as mounting surfaces;

and the positions of the matrix, which are matched with the long edges of the mounting surfaces, are respectively provided with a curve-shaped cutting edge matched with the gear parameters.

2. The four-edged gear finishing milling cutter according to claim 1, wherein the base body is provided with a rake groove on a long-edge surface thereof which is engaged with each of the long edges, and which is engaged with the direction in which the cutting edges are arranged.

3. A four-edged gear finishing milling insert as recited in claim 2 wherein the rake groove is configured to intersect each cutting edge.

4. A four-edged gear finishing milling insert as claimed in claim 1 wherein each of said mounting faces is configured at the cutting edges with an inwardly converging curved surface such that each cutting edge is spatially curved under the action of the curved surface.

5. A four-edged gear finishing insert as defined in claim 4 wherein the mounting face has a mounting face spatially higher than the curved face for mating with the mounting slot in the cutter body under the influence of each curved face.

6. A four-edged gear finishing milling insert as defined in claim 1 wherein the insert is provided with a fixing hole for fitting with the cutter body mounting groove;

the fixing hole is provided with a fixing part matched with a screw on the screw at the center of the blade;

the fixing parts are arranged on one side matched with each mounting surface and are respectively provided with an expansion part matched with the nut end on the screw;

the expansion parts and the fixing parts are connected in a transition mode through matched contraction parts.

Images