CN114682849A

CN114682849A - Head-replaceable reamer

Info

Publication number: CN114682849A
Application number: CN202011566870.7A
Authority: CN
Inventors: 王亚新; 王文龙
Original assignee: Suzhou Kaduo Cutting Tool Co ltd
Current assignee: Suzhou Kaduo Cutting Tool Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-07-01

Abstract

The invention provides a head-changeable reamer, comprising: handle of a knife and tool bit, the tool bit lateral wall is provided with a plurality of cutting edges, handle of a knife one side is provided with interior taper hole, tool bit one side is provided with the outer conical surface that forms interference fit with interior taper hole, be provided with adapter sleeve in the interior taper hole, adapter sleeve is close to tool bit side and outer conical surface and all is provided with the screw hole, the handle of a knife passes through double-end screw and screw hole cooperation and is connected with the tool bit, be provided with first interior cold tube way in the tool bit, it is provided with interior cold tube way of second to correspond first interior cold tube way in the handle of a knife, first interior cold tube way and the interior cold tube way intercommunication of second. As described above, the reamer with the replaceable head provided by the invention solves the problems that in the prior art, when a new cutter is replaced, the cutter needs to be clamped again for cutter adjustment, errors are easy to generate, the production cost of the new cutter is high, the period is long, and the production efficiency is seriously affected.

Description

Head-replaceable reamer

Technical Field

The invention relates to the technical field of machining, in particular to a head-replaceable reamer.

Background

When the existing reamer is used and the service life is prolonged, a new cutter needs to be replaced, the cutter needs to be clamped again during replacement, and errors are easy to generate. And the new cutter has higher production cost and longer period, and seriously influences the production efficiency.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a head-replaceable reamer, which is used for solving the problems that in the prior art, when a new cutter is replaced, the cutter needs to be clamped again, errors are easy to generate, the production cost of the new cutter is high, the period is long, and the production efficiency is seriously influenced.

To achieve the above and other related objects, the present invention provides an interchangeable head reamer, comprising: the outer side wall of the cutter head is provided with a plurality of cutting edges,

an inner taper hole is arranged at one side of the knife handle, an outer conical surface which forms interference fit with the inner taper hole is arranged at one side of the knife head,

a connecting sleeve is arranged in the inner taper hole, threaded holes are formed in the connecting sleeve, the side of the connecting sleeve close to the cutter head, and the outer conical surface,

the tool holder is matched with the tool bit through a double-end screw and a threaded hole, a first inner cooling pipeline is arranged in the tool bit, a second inner cooling pipeline is arranged in the tool holder corresponding to the first inner cooling pipeline, and the first inner cooling pipeline is communicated with the second inner cooling pipeline.

Preferably, the cutting edge is a straight cutting edge and/or a beveled cutting edge.

According to the preferable technical scheme, the side, far away from the knife handle, of the knife head is provided with an inner cavity conical surface, the inner side wall of the inner cavity conical surface is provided with threads, and an adjusting screw is arranged in the inner cavity conical surface and corresponds to the threads.

As a preferred technical scheme, a pin hole is formed in the connecting sleeve, a stop pin is arranged on the side wall of the cutter handle, and the stop pin partially extends into the pin hole.

As described above, the present invention provides an interchangeable reamer, which has the following beneficial effects: adopt interference fit between tool bit and the handle of a knife for guarantee the precision of tool bit, and connect through stud, after the tool bit reached life promptly, only need change the tool bit can, reasonable in design is suitable for production and popularization and application.

Drawings

FIG. 1 is a schematic structural view of an interchangeable reamer according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural diagram of a cutter head of the reamer with an interchangeable head according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a holder of the reamer with an interchangeable head according to an embodiment of the present invention;

fig. 5 is an exploded schematic view of an interchangeable reamer according to an embodiment of the present invention.

Wherein the reference numerals are specified as follows: 1. an adjusting screw; 2. a cutter head; 3. a knife handle; 4. a double-headed screw; 5. a stop pin; 6. an outer conical surface; 7. an inner taper hole; 8. a cutting edge; 9. a first internally cooled conduit; 10. a second internally cooled conduit; 11. a conical surface of the inner cavity; 12. and connecting the sleeve.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 5, the present invention provides an interchangeable reamer, including: handle of a knife 3 and

tool bit

2, 2 lateral walls of tool bit are provided with a plurality of cutting edges 8, 3 one sides of handle of a knife are provided with interior taper hole 7, 2 one sides of tool bit are provided with the external cone surface 6 that forms interference fit with interior taper hole 7, be provided with adapter sleeve 12 in the interior taper hole 7, adapter sleeve 12 is close to tool bit 2 side and external cone surface 6 and all is provided with the screw hole, handle of a knife 3 is connected with tool bit 2 through double-end screw 4 and screw hole cooperation, be provided with first interior cold tube 9 in the tool bit 2, it is provided with interior cold tube 10 of second to correspond first interior cold tube 9 in the handle of a knife 3, interior cold tube 9 of first interior cold tube 9 and the interior cold tube 10 intercommunication of second.

In the reamer with the replaceable head, the cutting edge 8 is a straight cutting edge 8 and/or a slant cutting edge 8.

The interchangeable hair style reamer that this embodiment provided, tool bit 2 keep away from 3 sides of handle of a knife and open and be equipped with the inner chamber

conical surface

11, and 11 inside walls of inner chamber conical surface are provided with the screw, and it is provided with adjusting screw 1 to correspond the screw in the 11 interior chamber conical surfaces.

The embodiment provides a changeable hair style reamer, is provided with the pinhole on adapter sleeve 12, and 3 lateral walls of handle of a knife are provided with

stop pin

5, and 5 parts of stop pin stretch into the pinhole, make adapter sleeve 12 can not take place to rotate for handle of a knife 3 through stop pin 5.

In a specific use: adopt interference fit between tool bit 2 and the handle of a knife 3 for guarantee tool bit 2's precision, and connect through stud 4, after tool bit 2 reached life promptly, only need change tool bit 2 can, the tool changing time is short, need not preset, compensation, tool setting.

In conclusion, the reamer with the replaceable head disclosed by the invention solves the problems that in the prior art, when a new cutter is replaced, the cutter needs to be clamped again for cutter setting, errors are easy to generate, the production cost of the new cutter is high, the period is long, and the production efficiency is seriously influenced. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An interchangeable reamer, comprising: the outer side wall of the cutter head is provided with a plurality of cutting edges,

the utility model discloses a cold-proof tool bit, including handle of a knife, threaded hole, tool bit, handle of a knife, the handle of a knife pass through the double-end screw with the threaded hole cooperation with the tool bit is connected, be provided with first interior cold duct in the tool bit, correspond in the handle of a knife first interior cold duct is provided with interior cold duct of second, first interior cold duct with interior cold duct intercommunication of second.

2. The interchangeable tipped reamer of claim 1, wherein the cutting edge is a straight cutting edge and/or a beveled cutting edge.

3. The reamer with the replaceable head of claim 1, wherein an inner cavity conical surface is formed on the side, away from the cutter handle, of the cutter head, threads are arranged on the inner side wall of the inner cavity conical surface, and adjusting screws are arranged in the inner cavity conical surface and correspond to the threads.

4. The interchangeable reamer of claim 1 wherein the coupling sleeve has a pin hole and the handle has a stop pin partially extending into the pin hole.