CN211991092U

CN211991092U - Inner hole forming cutter

Info

Publication number: CN211991092U
Application number: CN202020403943.XU
Authority: CN
Inventors: 叶泉
Original assignee: Shanghai Huaxun Auto Parts Co ltd
Current assignee: Shanghai Huaxun Auto Parts Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-24
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a hole shaping cutter, it includes cutter body, the first cutting sword of a plurality of and a plurality of conducting bar, a plurality of chip groove and a plurality of mounting groove have on cutter body's the outer peripheral face, a plurality of chip groove, a plurality of mounting groove, a plurality of first cutting sword and a plurality of the conducting bar one-to-one, the mounting groove is located the processing end of chip groove internal face, first cutting sword with the conducting bar is all installed and is set up in the mounting groove, just the conducting bar expose in on cutter body's the outer peripheral face, the outer fringe of first cutting sword for the part of exposing of conducting bar outwards extends. The guide strip is exposed out of the peripheral surface of the cutter body and is lower than the outer edge of the first cutting edge, and the guide strip plays a supporting role, so that the swinging and vibration of the inner hole forming cutter are effectively reduced, an oil film is formed on the inner surface of a machined workpiece, and the quality problem of the inner surface caused by direct contact is effectively prevented.

Description

Inner hole forming cutter

Technical Field

The utility model relates to an inner hole forming cutter.

Background

When the steering engine shell is machined and manufactured, the inner hole of the machined part is large and deep, so that the whole weight is heavy after the cutter is designed, the inner hole is close to the upper limit of a main shaft of a machining center, the high-speed stability of the main shaft is poor in the machining process, the size precision of the inner hole of the machined part is high, the main shaft is required to run at a high speed, and the size of the inner hole is unstable after machining due to the combination of the main shaft and the inner hole. Meanwhile, the vibration of the cutter causes obvious vibration of cutter lines, and the quality problem is serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned not enough of current existence, the utility model provides an inner hole shaping cutter.

The utility model discloses a realize through following technical scheme:

the utility model provides an inner hole shaping cutter, its includes cutter body, the first cutting edge of a plurality of and a plurality of conducting bar, a plurality of chip groove and a plurality of mounting groove have on the outer peripheral face of cutter body, a plurality of chip groove, a plurality of mounting groove, a plurality of first cutting edge and a plurality of the conducting bar one-to-one, the mounting groove is located the processing end of chip groove internal face, first cutting edge with the conducting bar all installs and sets up in the mounting groove, just the conducting bar expose in on the outer peripheral face of cutter body, the outer fringe of first cutting edge for the exposed part of conducting bar outwards extends.

Further, an internal cooling hole is formed in the cutter body, extends inwards from one end of the cutter body along the length direction of the cutter body, and does not penetrate through the other end of the cutter body;

this internal first reposition of redundant personnel hole of a plurality of that still has of cutter, the both ends of first reposition of redundant personnel hole communicate respectively in interior cold bore with the chip groove, and a plurality of first reposition of redundant personnel hole site in the drill way orientation of chip groove first cutting sword with the conducting bar.

Further, the hole shaping cutter still includes a plurality of second cutting edge, first cutting edge with the second cutting edge is located respectively the both ends of cutter body, the second cutting edge connect in the cutter body.

Further, still have a plurality of second reposition of redundant personnel hole in the cutter body, the both ends of second reposition of redundant personnel hole communicate respectively in interior cold hole with the chip groove, just the second reposition of redundant personnel hole is located the drill way orientation of chip groove the second cutting edge.

Further, the cutter body comprises a cutter handle and a cutter body, the first cutting edge and the guide strips are connected to the processing end of the cutter body, and the cutter handle is connected to the other end of the cutter body.

Further, the first cutting edge and the lead bar are connected to each other.

Furthermore, the number of the first cutting edges and the number of the guide bars are four, and the four guide bars are uniformly distributed on the outer peripheral surface of the cutter body.

The beneficial effects of the utility model reside in that: the guide strip is exposed out of the outer peripheral surface of the cutter body and is lower than the outer edge of the first cutting edge, so that the guide strip plays a supporting role in the cutting process of the inner hole forming cutter, the swinging and vibration of the inner hole forming cutter are effectively reduced, an oil film can be formed on the inner surface of a machined workpiece, and the quality problem of the inner surface caused by direct contact is effectively prevented.

Drawings

Fig. 1 is a schematic perspective view of an inner hole forming tool according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the inner hole forming tool according to the embodiment of the present invention.

Fig. 3 is a schematic view of an internal structure of the inner hole forming tool according to the embodiment of the present invention.

Description of reference numerals:

tool body 1

Chip groove 11

Inner cooling hole 12

First flow dividing orifice 13

Second flow dividing orifice 14

Cutter body 15

Knife handle 16

A first cutting edge 2

Conducting bar 3

Second cutting edge 4

Detailed Description

The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.

As shown in fig. 1, fig. 2 and fig. 3, the present embodiment discloses an inner hole forming tool, the inner hole forming tool includes a tool body 1, a plurality of first cutting edges 2 and a plurality of conducting bars 3, a plurality of chip grooves 11 and a plurality of mounting grooves are provided on the outer peripheral surface of the tool body 1, the plurality of chip grooves 11, the plurality of mounting grooves, the plurality of first cutting edges 2 and the plurality of conducting bars 3 are in one-to-one correspondence, the mounting grooves are located at the processing end of the inner wall surface of the chip grooves 11, the first cutting edges 2 and the conducting bars 3 are all installed and arranged in the mounting grooves, the conducting bars 3 are exposed out of the outer peripheral surface of the tool body 1, and the outer edges of the first cutting edges 2 extend outwards relative to the exposed parts of the conducting bars 3.

Expose in the outer peripheral face of cutter body 1 and be less than the outer fringe of first cutting edge 2 through conducting bar 3 for hole shaping cutter is at the cutting in-process, and conducting bar 3 plays the supporting role, thereby effectively reduces hole shaping cutter's swing, shake the sword, has improved hole shaping cutter's stability greatly. Simultaneously, hole shaping cutter can form the oil film with the internal surface of work piece for conducting bar 3 will support and lean on the oil film, effectively prevents the internal surface's of direct contact work piece quality problem that causes the work piece.

The cutter body 1 comprises a cutter handle 16 and a cutter body 15, a plurality of first cutting edges 2 and a plurality of guide bars 3 are connected to the processing end of the cutter body 15, and the cutter handle 16 is connected to the other end of the cutter body 15. The chip groove 11 is machined and manufactured on the cutter body 15, the first cutting edge 2 and the guide bar 3 are connected with the cutter body 15, the cutter handle 16 is connected with the other end of the cutter body 15, the structure is simple, and machining and manufacturing are convenient. The number of the first cutting edges 2 and the number of the guide bars 3 are four, and the four guide bars 3 are uniformly distributed on the peripheral surface of the cutter body 1.

The tool body 1 is internally provided with an inner cooling hole 12, and the inner cooling hole 12 extends inwards from one end of the tool body 1 along the length direction of the tool body 1 and does not penetrate through the other end of the tool body 1; the tool body 1 is also internally provided with a plurality of first branch holes 13, two ends of each first branch hole 13 are respectively communicated with the inner cooling hole 12 and the chip groove 11, and the plurality of first branch holes 13 are positioned at the hole of the chip groove 11 and face the first cutting edge 2 and the guide bar 3. The hole shaping cutter is at the cutting in-process, and the cutting fluid will flow to the interior downthehole of processing through interior cold hole 12 to can effectual cooling hole shaping cutter, play the effect that reduces the wearing and tearing of hole shaping cutter, extension hole shaping cutter life. The cutting fluid flows into the first diversion hole 13 through the inner cooling hole 12 and flows into the chip removal groove 11 after passing through the first diversion hole 13, so that the chip removal impurities of the chip removal groove 11 are effectively discharged. Meanwhile, the orifices of the first branch holes 13 face the first cutting edge 2 and the guide bar 3 respectively, so that the cooling of the first cutting edge 2 and the guide bar 3 is effectively enhanced, and the service life of the inner hole forming cutter is further prolonged.

The inner hole forming cutter further comprises a plurality of second cutting edges 4, the first cutting edges 2 and the second cutting edges 4 are respectively located at two ends of the cutter body 1, and the second cutting edges 4 are connected to the cutter body 1. The first cutting edge 2 is provided at the machining end of the tool body 1, and the second cutting edge 4 is provided at the other end of the tool body 1, and the orifice of the inner bore can be machined by the second cutting edge 4. In the present embodiment, the first cutting edge 2 and the second cutting edge 4 are respectively provided at both ends of the cutter body 15.

The tool body 1 is also provided with a plurality of second branch holes 14, two ends of each second branch hole 14 are respectively communicated with the inner cooling hole 12 and the chip groove 11, and the second branch holes 14 are positioned at the hole openings of the chip grooves 11 and face the second cutting edge 4. The cutting fluid flows into the second diversion hole 14 through the inner cooling hole 12 and flows into the chip removal groove 11 after passing through the second diversion hole 14, so that the chip removal impurities in the chip removal groove 11 are effectively discharged. Meanwhile, the opening of the second flow dividing hole 14 faces the second cutting edge 4, so that the cooling of the second cutting edge 4 is effectively enhanced, and the service life of the inner hole forming cutter is further prolonged.

The first cutting edge 2 and the guide strip 3 are interconnected. Effectively strengthen the overall structure intensity of the inner hole forming cutter. The guide bar 3 is arranged in the mounting groove, the first cutting edge 2 is connected with the guide bar 3 and the cutter body 1 in a mounting mode, the guide bar 3 is exposed out of the cutter body 1 on the circumferential surface, and the first cutting edge 2 is exposed out of the guide bar 3.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an inner hole shaping cutter, its characterized in that, it includes cutter body, the first cutting edge of a plurality of and a plurality of conducting bar, a plurality of chip groove and a plurality of mounting groove have on the outer peripheral face of cutter body, a plurality of chip groove, a plurality of mounting groove, a plurality of first cutting edge and a plurality of the conducting bar one-to-one, the mounting groove is located the processing end of chip groove internal face, first cutting edge with the conducting bar all installs and sets up in the mounting groove, just the conducting bar expose in on the outer peripheral face of cutter body, the outer fringe of first cutting edge for the exposed part of conducting bar outwards extends.

2. The bore forming tool of claim 1, wherein the tool body has a bore therein, the bore extending inwardly from one end of the tool body along a length of the tool body and not extending through to the other end of the tool body;

3. The bore shaping tool of claim 2 further comprising a plurality of second cutting edges, said first cutting edges and said second cutting edges being located at respective ends of said tool body, said second cutting edges being connected to said tool body.

4. The inner hole forming tool as claimed in claim 3, wherein the tool body is further provided with a plurality of second flow dividing holes, two ends of the second flow dividing holes are respectively communicated with the inner cooling hole and the chip discharge groove, and the second flow dividing holes are positioned at the hole openings of the chip discharge groove and face the second cutting edge.

5. The bore forming tool of claim 1, wherein the tool body includes a shank and a body, a plurality of the first cutting edges and a plurality of the leads are connected to the machining end of the body, and the shank is connected to the other end of the body.

6. The bore-forming tool as claimed in claim 1, wherein said first cutting edge is interconnected with said lead.

7. The tool for shaping the inner bore of claim 1, wherein the number of the first cutting edge and the number of the bars are four, and the four bars are uniformly distributed on the outer circumferential surface of the tool body.