CN214640524U

CN214640524U - Machining tool

Info

Publication number: CN214640524U
Application number: CN202120812769.9U
Authority: CN
Inventors: 顾荣华; 李建刚; 黄建松; 史胜祥; 蒋伟群; 惠炜; 张磊; 汤芬华; 汤晓明
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-09
Anticipated expiration: 2031-04-20

Abstract

The utility model belongs to the technical field of engine cylinder block bent axle thrust surface processing, a processing cutter is disclosed, include: the cutter body comprises two milling cutter discs and a connecting rod, and the two milling cutter discs are axially opposite; the connecting rod is axially connected between the two milling cutter discs; the facing cutter includes: the milling cutter head main body is provided with a circumferential surface protruding out of the connecting rod, and a plurality of cutter grooves are formed in the circumferential surface; a blade disposed in the pocket; and the abutting block is selectively arranged in the cutter groove and positioned at the rear side of the blade to abut against the blade. The front and the rear milling cutter discs are used for machining front and rear thrust surfaces, and the abutting blocks are arranged on the rear sides of the blades of the milling cutter discs, so that the positions of the blades can be further adjusted, the precision of a cutter is improved, and multi-cutter cutting is performed according to the change of machining allowance of the thrust surfaces.

Description

Machining tool

Technical Field

The utility model relates to an engine cylinder block bent axle thrust surface processing technology field especially relates to a processing cutter.

Background

The crankshaft thrust surface has the remarkable characteristic that the contact area of the crankshaft thrust surface is much larger than that of the side surfaces of other shaft necks, and various precision requirements are high. At present, the grinding burn of the thrust surface is a common defect in the production of crankshafts. The crankshaft is one of the important parts in the engine, and has special shape, thinness and length, poor processing performance of the used material and various processing techniques.

The existing machining cutter has the problems that multi-cutter cutting cannot be carried out according to the change of the machining allowance of the thrust surface, and the cutter blade of the milling cutter disc cannot be finely adjusted, so that the cutter adjusting quality cannot be ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a processing cutter to solve and can't carry out the problem that the multitool was cut according to the change of thrust surface machining allowance.

To achieve the purpose, the utility model adopts the following technical proposal:

a machining tool comprising: the cutter body comprises two milling cutter discs and a connecting rod, and the two milling cutter discs are axially opposite; the connecting rod is axially connected between the two milling cutter discs;

wherein, the facing cutter dish includes:

the milling cutter head main body is provided with a circumferential surface protruding out of the connecting rod, and a plurality of cutter grooves are formed in the circumferential surface;

a blade disposed in the pocket; and

and the abutting block is selectively arranged in the cutter groove and is positioned at the rear side of the blade so as to abut against the blade.

As a preferable scheme of the above processing cutter, the connecting rod and the milling cutter disc are fixedly connected into an integral structure.

The connecting rod of the machining cutter and the milling cutter discs are fixedly connected into an integral structure, so that the size of the spacing position between the two milling cutter discs is fixed and unchanged, errors caused by manual assembly are reduced, and the machining precision is improved.

As a preferable aspect of the above processing tool, the pocket includes:

the main groove body is consistent with the blade in shape, and the blade is arranged in the main groove body; and

and the extension groove is selectively arranged at the rear side of the main groove body, and the abutting block is arranged in the extension groove.

The main groove body is used for placing a blade, the extension groove is used for placing a butting block, and the two positions are not interfered with each other.

As a preferable scheme of the above machining tool, the blades are in threaded connection in the main groove body along the radial direction of the milling cutter head body, and the abutting block is in threaded connection in the extension groove along the radial direction of the milling cutter head body.

The cutter body and the butt block are respectively connected in the main groove body and the extension groove along the radial direction of the milling cutter head main body, so that the axial displacement can be reduced during turning and milling, and the cutter body and the butt block are conveniently disassembled in a threaded connection mode.

As a preferable scheme of the above processing cutter, the blade is provided with two first side surfaces which are opposite to each other, and the inner wall of the main groove body is in clearance fit with the first side surfaces.

The blade and the main groove body are in clearance fit, and guide and proper limit are performed during installation.

As a preferable mode of the machining tool, the blade is further provided with a second side surface which is arranged between the two first side surfaces and can be contacted with the abutting block;

the cutting surface and the second side surface of the blade are opposite to each other in the axial direction of the connecting rod.

The second side of butt piece butt blade and then realize spacingly to the blade.

As a preferable scheme of the above machining tool, the spacing angles between any two adjacent cutter grooves on each milling cutter head body are the same.

As a preferable mode of the above machining tool, each of the cutter disc main bodies is provided with six cutter grooves, wherein two cutter grooves symmetrical in the radial direction of the cutter disc main body are provided with the extension groove.

Only two of the six cutter grooves are provided with extension grooves, so that the manufacturing cost is reduced when the machining allowance change of the thrust surface is met.

As a preferred scheme of the machining tool, the machining tool further comprises a tool shank connected with the tool body, and the tool shank is an HSK universal tool shank to be matched with a spindle interface of an HSK machining center.

The tool shank is designed into an HSK form according to an HSK machine tool spindle interface form, and the problem that the universality of a connection mode of a machining tool and a machine tool is not enough is solved.

As a preferable scheme of the above machining tool, the tool shank is provided with an internal cooling hole, and an outlet end of the internal cooling hole extends to the circumferential surface of the milling cutter disc main body.

And cooling liquid is injected through the inner cooling hole, so that the temperature of the cutter body is reduced, and the chip removal effect is achieved.

The utility model has the advantages that: the front and the rear milling cutter discs are used for machining front and rear thrust surfaces, and the abutting blocks are arranged on the rear sides of the blades of the milling cutter discs, so that the positions of the blades can be further adjusted, the precision of a cutter is improved, and multi-cutter cutting is performed according to the change of machining allowance of the thrust surfaces.

Drawings

FIG. 1 is a schematic view of a first perspective of a machining tool according to an embodiment of the present application;

fig. 2 is a structural diagram of a second perspective of the machining tool according to the embodiment of the present application.

In the figure:

100-a milling cutter disc;

1-a milling cutter disc main body; 2-a blade; 3-a butt-joint block; 11-a knife slot;

200-a connecting rod;

300-a knife handle; 301-internal cooling hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a processing cutter, as shown in fig. 1 and fig. 2, processing cutter includes cutter body and handle of a knife 300, and wherein the cutter body is located the left side of handle of a knife 300, and handle of a knife 300 sets up to HSK general handle of a knife to cooperation HSK machining center main shaft interface solves the not enough problem of processing cutter and lathe connected mode commonality.

Further, the tool shank 300 is provided with an inner cooling hole 301, and an outlet end of the inner cooling hole 301 extends to the circumferential surface of the cutter head body 1. By injecting cooling liquid into the inner cooling hole 301, the temperature of the cutter body is reduced, and the chip removal effect is achieved.

The cutter body comprises two milling cutter discs 100 and a connecting rod 200, the connecting rod 200 being axially connected between the two milling cutter discs 100. In the embodiment of the present application, the front and rear two milling cutter discs 100 have the same shape and size, and the centers of the two milling cutter discs 100 and the connecting rod 200 are coaxially arranged.

The milling cutter disc 100 comprises a milling cutter disc main body 1, blades 2 and a butt joint block 3, wherein the milling cutter disc main body 1 is provided with a circumferential surface protruding out of the connecting rod 200, the circumferential surface is provided with a plurality of cutter grooves 11, in other words, the outer diameter of the milling cutter disc main body 1 is larger than that of the connecting rod 200. The inserts 2 are arranged in the pockets 11, i.e. one insert 2 is mounted in each pocket 11, and the abutment block 3 is optionally arranged in the pocket 11 at the rear side of the insert 2 to abut against the insert 2.

The front and rear milling cutter discs 100 are used for machining front and rear thrust surfaces, and the abutting block 3 is arranged on the rear side of the blade 2 of the milling cutter disc 100, so that the position of the blade 2 can be further adjusted, the precision of the cutter is improved, and multi-cutter cutting is performed according to the change of machining allowance of the thrust surfaces.

Further, the connecting rod 200 and the milling cutter disc 100 are fixedly connected into an integral structure. It should be noted that, in the embodiment of the present application, two ends of the connecting rod 200 are respectively welded to one milling cutter disc 100. The connecting rod 200 of the machining cutter and the milling cutter discs 100 are fixedly connected into an integral structure, so that the size of the spacing position between the two milling cutter discs 100 is fixed and unchanged, errors caused by manual assembly are reduced, and the machining precision is improved.

Further, the sipe 11 includes a main groove body and an extension groove.

The main groove body is in accordance with the shape of the blade 2, and the blade 2 is arranged in the main groove body.

An extension groove is optionally provided at the rear side of the main groove body, and the abutment block 3 is provided in the extension groove. In other words, the sipe 11 not provided with the extension groove has only a main groove body, and only one blade 2 is mounted.

The blades 2 are in threaded connection in the main groove body along the radial direction of the milling cutter disc main body 1, and the abutting blocks 3 are in threaded connection in the extension grooves along the radial direction of the milling cutter disc main body 1.

Specifically, the main groove body is provided with a threaded hole extending in the radial direction of the milling cutter head body 1, and the blade 2 is provided with a threaded hole, and is fixed by penetrating through a thread of the blade 2 connected to the main groove body through a bolt. The abutting block 3 is the same, and will not be described in detail.

Further, the blade 2 is roughly in a hexahedral structure, the blade 2 is provided with two first side surfaces which are opposite to each other, and the inner wall of the main groove body is in clearance fit with the first side surfaces. The blade 2 is in clearance fit with the main groove body, and is guided and properly limited during installation.

The blade 2 is also provided with a second side face which is arranged between the two first side faces and is capable of contacting the abutment block 3, and the cutting face of the blade 2 is opposite to the second side face in the axial direction of the connecting rod 200.

Any two adjacent cutter grooves 11 on each cutter disc main body 1 are spaced at the same angle.

Further, each milling cutter head body 1 is provided with six cutter grooves 11, two adjacent cutter grooves 11 are separated by an included angle of 60 degrees, wherein two cutter grooves 11 which are symmetrical along the radial direction of the milling cutter head body 1 are provided with extension grooves. Namely, two radially symmetrical sipes 11 of the six sipes 11 are provided with extension grooves therein.

The installation method of the machining cutter in the embodiment of the application comprises the following steps: connecting the tool holder 300 with a spindle interface of an HSK machining center, connecting each tool bit 2 into a main groove body of the tool groove 11, then installing the abutting block 3 in each extending groove and abutting against the tool bit 2 to finish installation, and in the machining process, injecting cooling liquid into the inner cooling hole 301.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A machine tool, comprising: the cutter body comprises two milling cutter discs (100) and a connecting rod (200), wherein the two milling cutter discs (100) are axially opposite; the connecting rod (200) is axially connected between the two milling cutter discs (100);

wherein the milling cutter disc (100) comprises:

the milling cutter head main body (1) is provided with a circumferential surface protruding out of the connecting rod (200), and a plurality of cutter grooves (11) are formed in the circumferential surface;

a blade (2) disposed in the pocket (11); and

an abutment block (3) optionally arranged in the pocket (11) and located at the rear side of the blade (2) to abut against the blade (2).

2. The machining tool according to claim 1, characterized in that the connecting rod (200) and the milling cutter disc (100) are fixedly connected in an integrated structure.

3. The machining tool according to claim 1, characterized in that the pocket (11) comprises:

the main groove body is consistent with the blade (2) in shape, and the blade (2) is arranged in the main groove body; and

an extension groove, optionally arranged at the rear side of the main groove body, wherein the abutting block (3) is arranged in the extension groove.

4. The machining tool according to claim 3, characterized in that the insert (2) is screwed in the main groove body along a radial direction of the milling cutter disc body (1), and the abutment block (3) is screwed in the extension groove along a radial direction of the milling cutter disc body (1).

5. Machining tool according to claim 3, characterized in that the insert (2) is provided with two mutually opposite first sides, the inner wall of the main channel body being in clearance fit with the first sides.

6. Machining tool according to claim 5, characterized in that the insert (2) is also provided with a second side face, which is arranged between the two first side faces and can be brought into contact with the abutment block (3);

the cutting surface and the second side surface of the blade (2) are opposite to each other in the axial direction of the connecting rod (200).

7. The machining tool according to any one of claims 3 to 6, characterized in that any two adjacent cutter grooves (11) on each of the cutter disc bodies (1) are equally angularly spaced.

8. The machining tool according to claim 7, characterized in that each of the cutter disc bodies (1) is provided with six of the cutter grooves (11), wherein two of the cutter grooves (11) symmetrical in a radial direction of the cutter disc body (1) are provided with the extension groove.

9. The machining tool according to any one of claims 1-6, further comprising a tool shank (300) connected to the tool body, the tool shank (300) configured as an HSK universal tool shank to mate with an HSK machining center spindle interface.

10. The machining tool according to claim 9, characterized in that the tool shank (300) is provided with an internal cold bore (301), an outlet end of the internal cold bore (301) extending to a circumferential surface of the milling cutter disc body (1).