CN219130806U

CN219130806U - Indexable composite boring cutter

Info

Publication number: CN219130806U
Application number: CN202320124706.3U
Authority: CN
Inventors: 肖勇
Original assignee: Chongqing Chuannan Electromechanical Co ltd
Current assignee: Chongqing Chuannan Electromechanical Co ltd
Priority date: 2023-01-14
Filing date: 2023-01-14
Publication date: 2023-06-06
Anticipated expiration: 2033-01-14

Abstract

The utility model discloses an indexable composite boring cutter, which belongs to the technical field of machining cutter equipment, and the technical scheme is that the indexable composite boring cutter comprises a cutter head and a cutter body connected with the cutter head, wherein the cutter head and the cutter body are rotary bodies, the end part of the cutter body is provided with a cutting cutter head rod, the center position of the cutting cutter head rod is fixedly connected with the cutter body and is vertical to the cutter body, the middle part of the cutting cutter head rod is provided with a first cutting cutter blade group, and the end part of the cutting cutter head rod is provided with a second cutting cutter blade group; the cutter head, the cutter body and the cutting cutter head rod are internally provided with a communicated cooling pipeline group, and the water outlet end of the cooling pipeline group is arranged on the end face of the cutting cutter head rod; the utility model provides an indexable composite boring cutter, which is provided with a composite cutter surface, so that the cutting processing of stepped hole sites with various sizes can be realized.

Description

Indexable composite boring cutter

Technical Field

The utility model belongs to the technical field of machining tool equipment, and particularly relates to an indexable composite boring tool.

Background

The hole is a common structure on mechanical workpieces, the precision of the hole sometimes directly determines the installation and positioning precision of the workpiece, and the workpiece hole is generally processed by a boring cutter. The hole forms on the workpiece are various, the stepped hole is a common form, and the boring process of the multi-stepped hole is adopted in the current domestic large-scale steam turbine and heavy machine tool manufacturing industry. Such as bearing positions of a front bearing box and a rear bearing box of a steam turbine and an inner cavity of a square ram of a heavy machine tool. Boring cutters are one of the indispensable cutters in the field of machining. The boring cutter is an important cutter which is indispensable in precision hole machining, is mainly used for inner hole machining, reaming, profiling and the like, has one or two cutting parts and is a cutter which is specially used for carrying out rough machining, semi-finish machining or finish machining on the existing hole.

The boring cutter in the prior art has a single structure, and the number of the arranged cutting edges is small, so that the cutting function of the boring cutter cannot meet the requirements of some relatively complex and special workpieces, such as workpieces with stepped holes with a plurality of steps, and the like, and the boring cutter needs to be frequently replaced, so that the processing efficiency of boring processing is not improved.

Disclosure of Invention

The utility model aims to provide an indexable composite boring cutter, which can realize cutting machining of stepped hole sites with various sizes by arranging the boring cutter with a composite cutter surface.

The utility model aims at realizing the indexable composite boring cutter, which comprises a cutter head and a cutter body connected with the cutter head, wherein the cutter head and the cutter body are rotary bodies, a cutting cutter head rod is arranged at the end part of the cutter body, the center position of the cutting cutter head rod is fixedly connected with the cutter body and is vertical to the cutter body, a first cutting cutter blade group is arranged in the middle of the cutting cutter head rod, and a second cutting cutter blade group is arranged at the end part of the cutting cutter head rod; the cutter head, the cutter body and the cutting cutter head rod are internally provided with a cooling pipeline group which is communicated, and the water outlet end of the cooling pipeline group is arranged on the end face of the cutting cutter head rod.

Further, a knife edge groove is formed in the middle of the cutting blade rod, the first cutting blade set is arranged in the knife edge groove, the knife edge groove is a counter bore groove, and one side of the knife edge groove is arranged on the side of the cutting blade rod and is in an opening shape.

Further, the knife edge groove and the first cutting blade group form a first cutting unit, the cutting blade rod is provided with two first cutting units, and the two first cutting units are rotationally symmetrically arranged on the end face of the cutting blade rod.

Further, the first cutting blade set is provided with two blades, and the two blades are arranged on the side wall of the knife edge groove, which is close to the center of the cutting blade rod.

Further, the cutting faces of both said blades are distributed with an obtuse angle.

Further, a cutting groove is formed in the side wall of the cutting blade rod in the length direction, and the second cutting blade group is arranged in the cutting groove; the second cutting insert set includes an end cutting insert set adjustably disposed in the cutting slot.

Further, the end cutting blade group comprises a base and an end blade arranged on the base, wherein the end blade is arranged at the end position of the base through a bolt; the base is disposed in the cutting slot by an adjustable screw.

Further, a top blade is also provided on the base, the cutting face of the top blade being in an obtuse angle distribution with the cutting face of the end blade.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the cutter head is arranged, the cutter body is arranged on the cutter head, and the cutter head is connected with the rotating part to realize integral rotating connection, so that cutting processing is realized; more specifically, according to the hole sites of different workpieces, through the transposition adjustment of the boring cutter, namely the adjustment of the azimuth, the corresponding knife edge is arranged in the hole site of the workpiece, so that the processing of different hole sites is realized, the complicated processing of replacing the boring cutter is omitted, the processing efficiency of the boring is improved, meanwhile, due to the fact that the communicated cooling pipeline groups are arranged in the cutter head, the cutter body and the cutting cutter head rod, the cooling treatment of the cutter from inside to outside is realized through the corresponding cooling pipelines arranged in the boring cutter, and compared with the cooling treatment of the cutter outside, the cooling effect of the cutter body is better, and the service life of the boring cutter is prolonged.

2. In the utility model, the knife edge groove is arranged at the middle part of the cutting knife head rod, and the first cutting knife blade group is arranged in the knife edge groove, so that the knife edge in the first cutting knife blade group is arranged at the protruding position; therefore, the rotary cutting processing is realized under the drive of the rotation of the cutter body by the cutting cutter head rod; furthermore, one side of the knife edge groove is arranged at the side part of the cutting knife head rod and is in an opening shape, so that chip removal treatment of the cut chips is facilitated.

3. In the utility model, the first cutting blade group is provided with two blades, and the two blades are arranged on the side wall of the knife edge groove, which is close to the center of the cutting blade rod; therefore, the cutting faces of the two blades are arranged in a protruding mode on the edges, and the rotary cutting function is achieved under the rotation action of the cutting tool head rod.

4. According to the utility model, the cutting groove is formed in the side wall of the cutting blade rod in the length direction, so that the end part of the cutting blade rod has a cutting function when the cutting blade rod rotates, and further, the second cutting blade set is arranged in the cutting groove, and the cutting blade set in the second cutting blade set is arranged on the edge corner end part of the cutting groove, so that the end part of the cutting blade rod has the cutting function in the rotating process, and therefore, the cutting blade rod has a plurality of cutting positions capable of being adjusted in an indexing mode, and the cutting processing of different hole sites is further met.

5. In the utility model, an end cutting blade group is provided with a base for mounting the blade, and the base is arranged at the end position of the base through a bolt; meanwhile, the base can be arranged in the cutting groove after certain adjustment, so that the position of the end blade on the base can be adjusted relative to the inner part of the cutting groove, and further the cutting machining of hole sites with different sizes is met.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of a boring tool according to the present utility model;

fig. 2 is a schematic top view of the boring tool of the present utility model.

In the drawings, 1-bit, 2-body, 3-cutting bit bar, 4-first cutting blade set, 5-second cutting blade set, 6-cooling duct set, 7-knife edge groove, 8-first cutting unit, 9-blade, 10-cutting groove, 11-end cutting blade set, 12-base, 13-end blade, 14-bolt, 15-adjustable screw, 16-top blade.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

The indexable composite boring cutter comprises a cutter head 1 and a cutter body 2 connected with the cutter head 1, wherein the cutter head 1 and the cutter body 2 are rotary bodies, a cutting cutter head rod 3 is arranged at the end part of the cutter body 1, the center position of the cutting cutter head rod 3 is fixedly connected with the cutter body 2 and is perpendicular to the cutter body 2, a first cutting blade set 4 is arranged in the middle of the cutting cutter head rod 3, and a second cutting blade set 5 is arranged at the end part of the cutting cutter head rod 3; the cutter head 1, the cutter body 2 and the cutter head rod 3 are internally provided with a cooling pipeline group 6 which is communicated, and the water outlet end of the cooling pipeline group 6 is arranged on the end face of the cutter head rod 3.

The cutter head 1 is arranged, the cutter body 2 is arranged on the cutter head 1, and the cutter head 1 is connected with the rotating part to realize integral rotating connection, so that cutting processing is realized; furthermore, as the end part of the cutter body 2 is provided with the cutting tool bit 1 rod, and the cutting tool bit 1 rod is provided with a compound knife edge, the cutting processing of workpieces with different sizes is realized; more specifically, according to the hole sites of different workpieces, through the transposition adjustment of the boring cutter, namely the adjustment of the azimuth, the corresponding knife edge is arranged in the hole site of the workpiece, so that the processing of different hole sites is realized, the complicated processing of replacing the boring cutter is omitted, the processing efficiency of boring is improved, meanwhile, due to the fact that the cooling pipeline group 6 communicated with each other is arranged in the cutter head 1, the cutter body 2 and the cutting cutter head 1 rod, the cooling treatment of the cutter from inside to outside is realized through the corresponding cooling pipeline arranged in the boring cutter, and compared with the cooling effect of the cutter body 2, the service life of the boring cutter is prolonged.

Preferably, the cutting blade rod 3 is provided with a knife edge groove 7 at a middle position, the first cutting blade set 4 is arranged in the knife edge groove 7, the knife edge groove 7 is a counter bore groove, and one side of the knife edge groove 7 is arranged at the side part of the cutting blade rod 3 and is in an opening shape.

By arranging the knife edge groove 7 at the middle part of the cutting knife head rod 3 and arranging the first cutting knife blade group 4 therein, the knife edge in the first cutting knife blade group 4 is arranged at a protruding position, thereby realizing rotary cutting processing under the drive of the rotation of the knife body 2 of the cutting knife head 1 rod; further, since one side of the cutting edge groove 7 is provided at the side of the cutting tip rod 3 and is opened, chip removal treatment of the cut chips is facilitated.

Preferably, the cutter body 2 may be made of an YG6x alloy material, the end blade 13 and the top blade 16 may be made of PCD, and the PCD is a diamond material, and the service life of the cutter can be effectively prolonged by more than 10 times after the two materials are welded together and the diamond (PCD) is welded on the cutting edge part. So the existing automobile engine and new energy automobile generator are all made of diamond PCD material to improve the surface finish and cutter

Preferably, the knife edge groove 7 forms a first cutting unit 8 with the first cutting insert set 4, the cutting insert shaft 3 being provided with two first cutting units, which are arranged rotationally symmetrically on the end face of the cutting insert shaft 3.

Preferably, the first cutting blade set 4 is provided with two blades 9, both said blades 9 being arranged on the side wall of the cutting edge slot 7 near the centre of the cutting edge bar 3.

Since the first cutting blade group 4 is provided with two blades 9, and the two blades 9 are arranged on the side wall of the knife edge groove 7, which is close to the central position of the rod of the cutting tool bit 1, the cutting faces of the two blades 9 can be arranged in a protruding manner on the edge, and the rotating cutting function is realized under the rotating action of the rod of the cutting tool bit 1.

Preferably, the cutting faces of both said blades 9 are distributed with an obtuse angle.

Preferably, the cutting insert rod 3 is provided with a cutting groove 10 on a side wall in a length direction, and the second cutting insert set 5 is provided in the cutting groove 10; the second cutting insert set 5 comprises an end cutting insert set 11 adjustably arranged in the cutting slot 10.

By providing the cutting groove 10 on the side wall of the cutting bit 1 bar in the length direction, the end of the cutting bit bar 3 has a cutting function when rotating, and further, the second cutting blade set 5 is arranged in the cutting groove 10, and the cutting blades 9 in the second cutting blade set 5 are arranged on the edge end of the cutting groove 10, so that the end of the cutting bit bar 3 has a cutting function when rotating, thereby, the cutting bit bar 3 has a plurality of cutting positions which can be adjusted by transposition, and further, the cutting processing of different hole sites is satisfied.

Preferably, the end cutting blade group 11 includes a base 12, an end blade 13 provided on the base 12, the end blade 13 being provided at an end position of the base 12 by a bolt 14; the base 12 is arranged in the cutting slot 10 by means of an adjustable screw 15.

Mounting the insert 9 by arranging the end cutting insert 9 group on a base 12, the base 12 being arranged at an end position of the base 12 by a bolt 14; meanwhile, the base 12 can be arranged in the cutting groove 10 after certain adjustment, so that the position of the end blade 13 on the base 12 relative to the inside of the cutting groove 10 can be adjusted, and further the cutting machining of hole sites with different sizes can be satisfied.

Preferably, the base 12 is further provided with a top blade 16, and the cutting surface of the top blade 16 is distributed with the cutting surface of the end blade 13 at an obtuse angle.

The working principle and the working process of the utility model are as follows:

according to the utility model, the cutter head 1 is arranged, the cutter body 2 is arranged on the cutter head 1, and the cutter head 1 is connected with the rotating part to realize integral rotating connection, so that cutting processing is realized; furthermore, as the end part of the cutter body 2 is provided with the cutting tool bit 1 rod, and the cutting tool bit 1 rod is provided with a compound knife edge, the cutting processing of workpieces with different sizes is realized; more specifically, according to the hole sites of different workpieces, the corresponding knife edges are arranged in the hole sites of the workpieces through the transposition adjustment, namely the azimuth adjustment, of the boring cutters, so that the processing of the different hole sites is realized, the complicated processing of replacing the boring cutters is avoided, and the processing efficiency of boring is improved.

Meanwhile, as the cooling pipeline groups 6 which are communicated are arranged in the cutter head 1, the cutter body 2 and the cutting cutter head 1, the cutter is cooled from inside to outside by arranging corresponding cooling pipelines in the boring cutter, compared with the external cooling of the boring cutter, the cooling effect of the cutter body 2 is better, and the service life of the boring cutter is prolonged.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. The indexable composite boring cutter comprises a cutter head (1) and a cutter body (2) connected with the cutter head (1), and is characterized in that the cutter head (1) and the cutter body (2) are rotary bodies, a cutting cutter head rod (3) is arranged at the end part of the cutter body (2), the center position of the cutting cutter head rod (3) is fixedly connected with the cutter body (2) and is perpendicular to the cutter body (2), a first cutting cutter blade group (4) is arranged in the middle of the cutting cutter head rod (3), and a second cutting cutter blade group (5) is arranged at the end part of the cutting cutter head rod (3); the cutter head (1), the cutter body (2) and the cutting cutter head rod (3) are internally provided with a cooling pipeline group (6) which is communicated, and the water outlet end of the cooling pipeline group (6) is arranged on the end face of the cutting cutter head rod (3).

2. The indexable composite boring tool according to claim 1, wherein the cutting insert rod (3) is provided with an insert slot (7) at a middle position, the first cutting insert set (4) is arranged in the insert slot (7), the insert slot (7) is a counter bore slot, and one side of the insert slot (7) is arranged at a side part of the cutting insert rod (3) and is in an opening shape.

3. An indexable compound boring cutter according to claim 2, characterized in that the edge groove (7) forms a first cutting unit (8) with the first cutting insert set (4), the cutting insert shaft (3) being provided with two first cutting units, which are arranged rotationally symmetrically on the end face of the cutting insert shaft (3).

4. An indexable composite boring tool according to claim 3, wherein the first cutting insert set (4) is provided with two inserts (9), the two inserts (9) being provided on the side wall of the cutting edge slot (7) near the centre of the cutting insert rod (3).

5. An indexable compound boring tool according to claim 4, wherein the cutting faces of the two inserts (9) are of blunt angular distribution.

6. An indexable composite boring tool according to claim 1, wherein the cutting insert rod (3) is provided with cutting grooves (10) on a side wall in a length direction, the second cutting insert set (5) being provided in the cutting grooves (10); the second cutting insert set (5) comprises an end cutting insert set (11) adjustably arranged in a cutting slot (10).

7. The indexable composite boring tool according to claim 6, wherein the end cutting insert set (11) comprises a base (12), an end insert (13) disposed on the base (12), the end insert (13) being disposed in an end position of the base (12) by a bolt (14); the base (12) is arranged in the cutting groove (10) by an adjustable screw (15).

8. An indexable compound boring tool according to claim 7 wherein the base (12) is further provided with a top insert (16), the cutting face of the top insert (16) being in an obtuse angle with the cutting face of the end insert (13).