CN217859132U

CN217859132U - Double-edged knife for removing burrs of crossed holes

Info

Publication number: CN217859132U
Application number: CN202221029138.0U
Authority: CN
Inventors: 朱敏磊
Original assignee: Autocam China Automobile Parts Co ltd
Current assignee: Autocam China Automobile Parts Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-22
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a remove alternately hole burr twolip sword, include: the lower end of the knife handle is connected with a shell through threads, a blade is arranged in the shell and comprises a first blade and a second blade which are symmetrically arranged, the first blade and the second blade are connected through a spring, the blade is connected with the shell through a positioning bolt, and the blade can rotate around the positioning bolt; in this way, the utility model discloses can lean on the hard contact of cutting edge to cut, produce the chamfer, the deburring is more thorough, moves more stably, and life is longer.

Description

Double-edged knife for removing burrs of crossed holes

Technical Field

The utility model relates to a metal working field especially relates to a remove alternately hole burr twolip sword.

Background

The existing cross hole burr cutter generally utilizes a spring device in a tool to provide extrusion force to remove burrs, the blade contacts workpiece burrs, and larger burrs and hard flanges cannot be removed when the blade contacts the workpiece burrs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a remove cross hole burr twolip sword, can lean on the hard contact of cutting edge to cut, produces the chamfer, and the deburring is more thorough, moves more stably, and life is longer.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a remove alternately hole burr twolip sword, includes the handle of a knife, the handle of a knife lower extreme has the casing through threaded connection, the inside blade that is provided with of casing, the blade is including first blade and the second blade that the symmetry set up, first blade and second blade pass through spring coupling, the blade with connect through positioning bolt between the casing, the blade can wind positioning bolt rotates.

Preferably, the blade comprises a blade edge and a blade back, the upper end of the blade back is provided with a groove, and the spring is fixed between the two grooves.

Preferably, the cutting edge is divided into an upper cutting edge and a lower cutting edge, and is in a sharp triangle shape.

Preferably, the side edge of the shell is provided with an upper knife outlet and a lower knife outlet at positions corresponding to the upper knife edge and the lower knife edge.

Preferably, the housing includes a main housing and a cover plate, the cover plate is connected to the main housing through a positioning bolt, and the blade is located between the cover plate and the main housing.

Preferably, the blade is made of hard alloy materials.

The utility model has the advantages that: the utility model discloses utilize cutting edge and work piece hard contact, upper and lower cutting edge atress simultaneously directly cuts, and the deburring is more thorough, and is more stable.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention in its raw state;

FIG. 3 is a schematic cross-sectional view of the processing state of the present invention;

the parts in the drawings are numbered as follows:

1. a knife handle; 2. a housing; 21. a main housing; 22. a cover plate; 3. a blade; 41. a first blade; 42. a second blade; 5. A spring; 6. positioning a bolt; 71. a knife edge is formed; 72. discharging a knife edge; 8. a power tool apron; 9. an intersection; 10. a knife back; 101. a groove; 11. an upper blade; 12. a lower blade; 13. a blade.

Detailed Description

The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.

As shown in fig. 1, fig. 2 and fig. 3, the embodiment of the present invention includes: handle of a knife 1, the upper end of handle of a knife 1 is fixed on power blade holder 8, there is casing 2 lower extreme of handle of a knife 1 through threaded connection, casing 2 includes main casing body 21 and apron 22, main casing body 21's inside is provided with blade 3, blade 3 is including first blade 41 and the second blade 42 of symmetry setting, main casing body 21, blade 3 and apron 22 pass through positioning bolt 6 fixed connection, blade 3 can wind positioning bolt 6 and rotate, blade 3 has back of a knife blade 10 and cutting edge 13 two parts, the back of a knife blade 10 upper end of blade 3 is provided with recess 101, be connected with spring 5 between two recess 101, cutting edge 13 divide into cutting edge 11 and lower sword 12, last cutting edge 71 and lower cutting edge 72 have been seted up respectively in last cutting edge 11 and lower sword 12's corresponding position to the side of main casing body 21, carbide material can be chooseed for use to the blade 3 material, increase the durability of blade.

The utility model discloses the use as follows:

as shown in fig. 1, 2 and 3, in the unprocessed state, the upper blade 11 is pressed by the spring 5, extends from the upper blade outlet 71 along the extending direction of the spring, and the lower blade 12 is retracted in the housing 2; when the power tool apron 8 drives the double-edged knife for removing the burrs of the cross hole to enter the cross hole 9, the upper knife edge 11 extending out of the upper knife outlet 71 contacts with a workpiece firstly, the upper knife edge 11 contracts inwards under the extrusion force along the compression direction of the spring, the first knife blade 3 and the second knife blade 4 rotate around the positioning bolt 6, the lower knife edge 12 extends out of the lower knife outlet 72, the upper knife edge 11 and the lower knife edge 12 are stressed at the same time when the upper knife edge 11 and the lower knife edge 12 rotate to a certain position, and then the burrs are cut off.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cross-hole burr removing double-edged knife comprising: the knife handle, the handle of a knife lower extreme has the casing through threaded connection, its characterized in that, the inside blade that is provided with of casing, the blade is including first blade and the second blade that the symmetry set up, first blade and second blade pass through spring coupling, the blade with connect through positioning bolt between the casing, the blade can wind positioning bolt rotates.

2. A double-edged knife for deburring according to claim 1 wherein said blade includes a cutting edge and a back, said back having a recess at an upper end thereof, said spring being secured between said recesses.

3. A double-edged knife for removing cross-hole burrs as claimed in claim 2, wherein the cutting edge is divided into an upper cutting edge and a lower cutting edge and has a sharp triangle shape.

4. The double-edged knife for removing the burrs of the crossed hole as claimed in claim 3, wherein the side of the housing has an upper cutting edge and a lower cutting edge at positions corresponding to the upper cutting edge and the lower cutting edge.

5. The double-edged hole-deburring tool as claimed in claim 1, wherein said housing comprises a main housing and a cover plate, said cover plate is connected to said main housing by a set bolt, and said blade is located between said cover plate and said main housing.

6. A cross-hole burr removing double-edged knife as defined in claim 1, wherein said blade is made of cemented carbide.