CN217192796U

CN217192796U - Side milling head inner hole compound cutter

Info

Publication number: CN217192796U
Application number: CN202122308568.8U
Authority: CN
Inventors: 朱均; 朱敖平; 薛彩虹
Original assignee: Changzhou Yege Tools Co ltd
Current assignee: Changzhou Yege Tools Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-08-16
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a side milling head hole compound cutter, which comprises a hole cutter head, a milling groove cutter head and a cutter handle which are coaxially arranged and are sequentially connected, wherein the milling groove cutter head is in an axisymmetric shape and consists of a group of relative arc edges and a group of relative straight edges, and the relative arc edges are respectively provided with an end face groove blade; an inner hole cutter head is arranged on the disc surface of the milling groove cutter disc, the inner hole cutter head is in a central rotation symmetry type and is provided with two groups of opposite sides, the first group of opposite sides are perpendicular to two straight edges of the milling groove cutter disc, the second group of opposite sides are respectively provided with an inner hole milling blade, and the inner hole milling blades are perpendicular to the straight edges of the milling groove cutter disc and protrude out of the surface where the straight edges are located; the work of milling the inner wall of the hole and the end surface groove of the hole can be finished at one time, the machining precision is high, and the efficiency is high.

Description

Side milling head inner hole compound cutter

Technical Field

The utility model belongs to the machining cutter field, concretely relates to side milling head hole compound sword.

Background

The surface of an inner hole is one of important surfaces forming a mechanical part, in the mechanical part, the part with the hole generally accounts for 50-80% of the total number of the part, and the step of processing the inner hole on a solid material generally comprises the steps of firstly drilling the hole by using tools such as a twist drill, a center drill, a deep hole drill and the like, and then carrying out reaming processing on the existing hole by using a reamer, a boring cutter, a reamer and the like. On some parts that the leakproofness required ratio is higher, generally need set up the terminal surface groove around the hole terminal surface for installation sealing washer or oil blanket, sealing requirement when in order to satisfy the assembly, traditional processing mode is to accomplish hole drilling, reaming's processing, then uses grooving tool or lathe tool to turn out the terminal surface groove around fashioned hole, and this kind of mode needs the secondary to the heart, and not only machining efficiency is lower, produces the concentricity error moreover easily, makes the machining precision low, and the product defective rate is high.

Disclosure of Invention

To the problem and the technical demand, the utility model provides a side milling head hole compound sword can once only accomplish the work of milling hole inner wall and hole end face slot, can effectively avoid the error increase because of the tool changing processing leads to.

The technical scheme of the utility model as follows: the side milling head inner hole compound cutter comprises an inner hole cutter head, a milling groove cutter disc and a cutter handle which are coaxially arranged and sequentially connected, wherein the milling groove cutter disc is in an axial symmetry shape and consists of a group of opposite arc edges and a group of opposite straight edges, and the opposite arc edges are respectively provided with an end face groove blade; the disc surface of the milling groove cutter disc is provided with an inner hole cutter head which is in central rotational symmetry and is provided with two groups of opposite sides, the first group of opposite sides are perpendicular to the two straight edges of the milling groove cutter disc, the second group of opposite sides are respectively provided with an inner hole milling cutter blade, and the inner hole milling cutter blades are perpendicular to the straight edges of the milling groove cutter disc and protrude out of the surface where the straight edges are located. The hole tool bit is used for the reaming milling process of hole, when the hole tool bit accomplishes set degree of depth and adds man-hour, the terminal surface groove blade in the milling flutes blade disc quotation reachs the machined surface, feeds once more thereupon, directly processes out concentric circular shape channel round the hole terminal surface, and this groove is the terminal surface groove, can install sealing fittings, has good sealed anti-skidding effect when making the assembly.

Further, the second group of opposite sides of the inner hole tool bit are respectively provided with a right-angle ladder, the inner hole milling blade is fixedly arranged at the ladder, and four right-angle positions where the first group of opposite sides and the second group of opposite sides are intersected are provided with chamfers. The one-level ladder is arranged, so that a plane for supporting the back is arranged when the milling inner hole blade is installed, the stability of the milling inner hole blade is better, the vibration during machining is effectively avoided, and the chamfer has the function of avoiding the blade.

Furthermore, a conical counter bore is arranged at the center of the end face of the inner bore cutter head, the taper of the counter bore is 90 degrees, and a mounting hole is formed in the center of the counter bore. The drill bit can be installed in the installation hole, so that the composite function of the cutter is more powerful, and the countersunk hole ensures the flatness of the end face of the inner hole cutter head after the drill bit is installed.

Furthermore, the end face groove blade is installed on the groove milling cutter disc through the blade base, the blade base is arranged close to the arc edge of the groove milling cutter disc, the radian of the outer edge of the blade base is consistent with that of the arc edge, and the thickness of the blade base is gradually reduced backwards along the rotation direction of the groove milling cutter disc.

Furthermore, the end face slot blade is installed on the end face of the thicker end of the blade base, and meanwhile, the end face slot blade is perpendicular to the disc face of the milling groove cutter disc. When the end face groove blade is used for milling an annular sealing groove, the blade base with the thinner rear part can avoid the mounting surface in front, so that the end face groove blade can smoothly complete turning without interference.

Furthermore, the end face slot blade is T-shaped.

Furthermore, in order to facilitate the clamping of the tool handle, the tool handle is conical, a section of the tool handle close to the end head is hexagonal, and a threaded clamping hole is formed in the center of the end face of the tool handle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the cutter is used for the reaming processing of hole, it is in the same place the compound hole tool bit and the milling flutes cutter head, the hole tool bit is at first reamed to the hole, when reaching the limited depth, the milling flutes cutter head goes out at the terminal surface in hole and mills out the terminal surface groove concentric with the hole directly, this kind of mode can one-step refining, obtain the hole of accomplishing the hole enlargement and rather than the terminal surface groove of assorted simultaneously, and can guarantee that the concentricity is identical completely, make the machining precision promoted, avoid appearing bad machined part, can reach stable sealed effect when installing seal assembly in later stage; simultaneously, once accomplish the machining efficiency that processing can promote the hole greatly, save the recruitment cost.

Drawings

FIG. 1 is a front end view of the side milling head inner hole compound cutter of the present invention;

FIG. 2 is a schematic cross-sectional view at C of FIG. 1;

FIG. 3 is an axial schematic view of the inner hole compound cutter of the side milling head of the present invention;

FIG. 4 is a schematic view of the rotary cutting profile at B in FIG. 3;

FIG. 5 is a rear end view of the side milling head inner hole compound cutter of the present invention;

labeled as: the milling cutter comprises an inner hole cutter head 1, an inner hole milling blade 11, a counter bore 12, a mounting hole 13, a groove milling cutter head 2, an end face groove blade 21, a blade base 22, a cutter handle 3, a hexagonal prism 31 and a thread clamping hole 32.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

The inner hole compound cutter of the side milling head of the utility model comprises an inner hole cutter head 1, a milling groove cutter head 2 and a cutter handle 3 which are coaxially arranged and connected in sequence.

The milling groove cutter disc 2 is in an axial symmetry shape and consists of a group of opposite arc edges and a group of opposite straight edges, wherein the opposite arc edges are respectively provided with an end face groove blade 21; the end face groove blade 21 is installed on the milling groove cutter disc 2 through the blade base 22, the blade base 22 is arranged close to the arc edge of the milling groove cutter disc 2, the radian of the outer edge of the blade base is consistent with that of the arc edge, and the thickness of the blade base 22 is gradually reduced backwards along the rotating direction of the milling groove cutter disc 2. The end face grooving blade 21 is mounted on the end face of the thicker end of the blade base 22, meanwhile, the end face grooving blade 21 is perpendicular to the disc face of the groove milling cutter disc 2, and the end face grooving blade 21 is T-shaped. When the end face slot blade 21 is used for milling an annular sealing groove, the blade base with a thinner rear part can avoid the mounting surface in front, so that the end face slot blade 21 can smoothly complete turning without interference.

The disc surface of the milling groove cutter disc 2 is provided with an inner hole cutter head 1, the inner hole cutter head 1 is in a central rotation symmetry type and is provided with two groups of opposite sides, the first group of opposite sides are perpendicular to two straight edges of the milling groove cutter disc 2, the second group of opposite sides are respectively provided with an inner hole milling cutter blade 11, and the inner hole milling cutter blades 11 are perpendicular to the straight edges of the milling groove cutter disc 2 and protrude out of the surface where the straight edges are located. Further, the second group of opposite sides of the inner hole tool bit 1 are respectively provided with a right-angle ladder, the inner hole milling blade 11 is fixedly arranged at the ladder, and four right-angle positions where the first group of opposite sides and the second group of opposite sides are intersected are provided with chamfers. The one-level ladder is arranged, so that a supported plane is arranged on the back of the milling inner hole blade 11 during installation, the stability of the milling inner hole blade 11 is better, vibration during machining is effectively avoided, and the chamfer has the function of avoiding the blade. The end face center of the inner hole cutter head 1 is provided with a conical counter sink 12, the conicity of the counter sink 12 is 90 degrees, and the center of the counter sink 12 is provided with a mounting hole 13. The drill bit can be installed in the installation hole 13, so that the composite function of the cutter is stronger, and the countersunk hole 12 ensures the flatness of the end surface of the inner hole cutter head 1 after the drill bit is installed.

In order to facilitate the clamping of the tool shank 3, the tool shank 3 is conical, a section of the tool shank 3 close to the end head is in the shape of a hexagon prism 31, and a threaded clamping hole 32 is formed in the center of the end face of the tool shank 3.

The above description is only for the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Side milling head hole compound sword, its characterized in that: the milling cutter head is in an axial symmetry shape and consists of a group of opposite arc edges and a group of opposite straight edges, wherein the opposite arc edges are respectively provided with an end face slot blade; the disc surface of the milling groove cutter disc is provided with an inner hole cutter head which is in central rotational symmetry and is provided with two groups of opposite sides, the first group of opposite sides are perpendicular to the two straight edges of the milling groove cutter disc, the second group of opposite sides are respectively provided with an inner hole milling cutter blade, and the inner hole milling cutter blades are perpendicular to the straight edges of the milling groove cutter disc and protrude out of the surface where the straight edges are located.

2. The side milling head inner hole compound cutter as claimed in claim 1, wherein: the second group of opposite sides of hole tool bit respectively is equipped with a right angle ladder to the edge, mills hole blade fixed mounting in ladder department, and four crossing right angle departments of first group of opposite side and second group opposite side all are equipped with the chamfer.

3. The side milling head internal bore compound cutter as claimed in claim 2, wherein: the end face center of the inner hole cutter head is provided with a conical counter sink, the taper of the counter sink is 90 degrees, and the center of the counter sink is provided with a mounting hole.

4. The side milling head internal bore compound cutter as claimed in claim 1, wherein: the end face groove blade is installed on the groove milling cutter disc through the blade base, the blade base is arranged close to the arc edge of the groove milling cutter disc, the radian of the outer edge of the blade base is consistent with that of the arc edge, and the thickness of the blade base is gradually reduced along the rotating direction of the groove milling cutter disc.

5. The side milling head inner bore compound cutter as claimed in claim 4, wherein: the end face slot blade is arranged on the end face of the thicker end of the blade base, and is perpendicular to the disc face of the groove milling cutter disc.

6. The side milling head inner hole compound cutter as claimed in claim 4, wherein: the end face slot blade is T-shaped.

7. The side milling head internal bore compound cutter as claimed in claim 1, wherein: the handle of a knife is the toper, and the handle of a knife is close a section of end head department and is hexagonal prism shape, and the center department of handle of a knife terminal surface is equipped with screw thread clamping hole.