KR101254768B1

KR101254768B1 - Boring head

Info

Publication number: KR101254768B1
Application number: KR1020100095275A
Authority: KR
Inventors: 서성권; 강영원
Original assignee: (주)대신기술
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2013-04-15
Also published as: KR20120033646A

Abstract

The present invention, in the boring head mounted on the boring equipment, the insertion portion is formed in the upper portion of the cylindrical body, the insertion hole is formed on the outer surface of the body, the through hole connecting the insertion portion and the insertion hole is A housing formed; A cutting edge provided in the insertion portion of the housing and for finishing the hole of the cylinder liner; A connection piece inserted into the through hole and the cutting edge and one side of which are grounded; An adjustment member inserted into the insertion hole and adjusting a position of the connection piece; Fastening means fastened to the insertion hole to prevent separation of the adjustment member inserted into the insertion hole, and adjusting the position of the adjustment member; And a housing cover fastened to an upper portion of the housing to fix the cutting edge, wherein the connecting piece has a cylindrical shape, and a first protrusion protruding upward is formed at an upper end of the connecting piece, and a lower side of the connecting piece is downward. It provides a boring head, characterized in that the protruding second projection is formed.
Therefore, since the protruding length of the cutting edge provided in the boring head can be adjusted, the work time is shortened by not replacing the boring head according to the diameter of the workpiece to be worked, and the operator's convenience is improved, and the diameter is different. By not having a plurality of boring heads, it is possible to reduce the cost of equipment, and by providing a guide bar to prevent sagging and shaking of the boring heads, it is possible to reduce the defective rate occurred during drilling and widening of the holes. have.

Description

Boring head

The present invention relates to a boring head, and more particularly, to a boring head which is mounted on a boring equipment to drill a hole or widen a drilled hole in a workpiece.

In general, the boring head is a tool that is mounted on the spindle of a cutting machine such as a boring machine, a machining center, or the like to drill a hole in a workpiece or to cut a hole to widen it.

Such boring heads are generally configured such that the bit is mounted on the body of the cylindrical boring head. When machining a workpiece having a different inner diameter, the boring head suitable for the inner diameter to be processed cannot be used, which causes a problem that the bite-mounted boring head needs to be replaced from time to time according to the diameter of the workpiece to be worked.

In addition, when the drilling operation is performed, the boring head is shaken and deflected so that the hole is not drilled in the vertical direction but is drilled in an oblique direction.In the case of expanding the hole, the hole is not widened to a uniform diameter but shifted to one side. There was a problem of widening.

The present invention relates to a boring head to adjust the protruding length of the cutting edge provided in the housing to a desired diameter, and to adjust the protruding length of the guide bar for preventing shaking and sagging of the boring head.

The present invention, in the boring head mounted on the boring equipment, the insertion portion is formed in the upper portion of the cylindrical body, the insertion hole is formed on the outer surface of the body, the through hole connecting the insertion portion and the insertion hole is A housing formed; A cutting edge provided in the insertion portion of the housing and for finishing the hole of the cylinder liner; A connection piece inserted into the through hole and the cutting edge and one side of which are grounded; An adjustment member inserted into the insertion hole and adjusting a position of the connection piece; Fastening means fastened to the insertion hole to prevent separation of the adjustment member inserted into the insertion hole, and adjusting the position of the adjustment member; And a housing cover fastened to an upper portion of the housing to fix the cutting edge, wherein the connecting piece has a cylindrical shape, and a first protrusion protruding upward is formed at an upper end of the connecting piece, and a lower side of the connecting piece is downward. It provides a boring head, characterized in that the protruding second projection is formed.

In the present invention, the housing has a hollow hole penetrating the housing in the longitudinal direction at the center of the housing, a plurality of insertion grooves formed in a direction perpendicular to the hollow hole with respect to the hollow hole, and the housing A connection hole connected to the hollow hole may be formed at an outer side thereof, and the insertion groove may be provided with a guide bar for preventing shaking and sagging of the housing.

The boring head according to the present invention has the following effects.

First, since the protruding length of the cutting edge provided in the boring head can be adjusted, the work time is shortened by not replacing the boring head according to the diameter of the workpiece to be worked, and the operator's convenience is improved, and the equipment cost is reduced. Can be saved.

Second, by providing a guide bar for preventing sagging and shaking of the boring head, it is possible to reduce the defective rate that occurred during the drilling and widening operation.

1 is a perspective view showing a boring head according to an embodiment of the present invention.
2 is a view showing a process of adjusting the protruding length of the cutting edge of FIG.
3 is a view illustrating a process of adjusting the protruding length of the guide bar of FIG. 1.
4 is a view illustrating a state in which the cutting edge of the protrusion length of FIG. 2 is fixed.
5 is a view illustrating a state in which the guide bar of which the protrusion length of FIG. 3 is adjusted is fixed.
6 is a view illustrating a housing in which an insertion part, an insertion hole, a through hole, and a hollow hole are formed.
7 is a view illustrating a housing in which an insertion groove and a connection hole are formed.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 7, the boring head according to the present invention, the housing 10, the cutting edge 20, the connecting piece 30, the adjustment member 40, the fixing means 50, And a housing cover 60, a guide bar 70, an adjusting piece 80, and a first adjusting member 90.

The housing 10 has a cylindrical shape, and an insertion portion 11 is formed at an upper portion of the body, and an insertion hole 12 is formed at an outer surface of the body, and the insertion portion 11 and the insertion hole 12 are formed. ) Is formed with a through hole 13 for connecting.

In addition, the housing 10 is formed with a hollow hole 14 penetrating the housing 10 in the longitudinal direction at the center of the housing 10, a plurality of insertion in the direction perpendicular to the hollow hole 14 A groove 15 is formed, and a connection hole 16 connected to the hollow hole 14 is formed on an outer surface of the housing 10.

Insertion portion 11 of the housing 10 is provided with a cutting edge 20, the cutting edge 20 serves to finish the hole drilled in the cylinder liner, one side of the cutting edge 20 It is formed to have an inclined surface 22.

The cutting edge 20 is widely used in the market, a detailed description of the configuration of the cutting edge 20 will be omitted.

The connecting piece 30 having a cylindrical shape is inserted into the through hole 13 of the housing 10. A first protrusion 32 protruding upward is formed at an upper end of the connection piece 30, and a second protrusion 34 protruding downward is formed at a lower end of the connection piece 30. The first protrusion 32 is grounded with the inclined surface 22 of the cutting edge 20.

The adjusting member 40 is inserted into the insertion hole 12 of the housing 10, and a protrusion 42 is formed at one side of the adjusting member 40, and the protrusion 42 is connected to the connection piece 30. It has the same angle of inclination as the second protrusion 34 so as to slide in contact with the second protrusion 34.

The fixing means 50 is fastened to the insertion hole 12 of the housing 10, and the fixing means 50 has an adjustment member 40 inserted into the insertion hole 12 at the insertion hole 12. It prevents the departure and serves to adjust the position of the adjustment member (40).

The fixing means 50 is preferably a tanned bolt, it is fastened to the inside of the insertion hole 12, to adjust the position while preventing the departure of the control member (40).

The insertion groove 15 of the housing 10 is provided with a guide bar 70 for preventing the shaking and sagging of the boring head of the present invention for finishing the hole drilled in the workpiece, the guide bar 70 is the housing A plurality of circumferential surfaces of the housing 10 are provided around the hollow hole 14 of the housing 10.

The guide bar 70 is provided to advance the traveling direction of the boring head 1 of the present invention to perform the operation of drilling a hole or widening the hole in the workpiece in the desired direction, the rotation is the cutting edge 20 and It serves to guide the direction in which the direction is changed by the vibration of the boring head (1), the inclined surface 72 is formed on one side of the guide bar (70).

The adjusting piece 80 for adjusting the protruding length of the guide bar 70 is inserted into the hollow hole 14 of the housing 10, and the adjusting piece 80 is cylindrical in shape and the adjusting piece 80 ) Has a first inclined surface 82 and a second inclined surface 84 having different inclination angles from the outside to the inside.

The first inclined surface 82 is formed to have the same inclination angle as the inclined surface 72 formed on one side of the guide bar 70.

In the connection hole 16 of the housing 10, a first adjusting member 90 and the first adjusting member 90 for adjusting the position of the adjusting piece 80 inserted into the hollow hole 14 are provided. Fixing means (50) for preventing the separation from the thermal hole 16 is provided.

An inclined surface 92 having the same inclination angle as the second inclined surface 84 of the adjusting piece 80 is formed on one side of the first adjusting member 90, and a tanned bolt is used as the fixing means 50. It is desirable to be.

The housing cover 60 is fastened to the upper portion of the housing 10, and serves to fix the cutting edge 20 and the guide bar 70, and the cutting edge 20 is attached to the housing cover 60. ) Is provided with a fixing pad 62 for fixing the fixing part 64 for fixing the guide bar 70.

The fixing part 64 for fixing the guide bar 70 includes a stopper pin 65, a polishing rod 66, and an elastic member 67.

After adjusting the protruding length of the cutting edge 20 and the guide bar 70 of the boring head 1 of the present invention, a process of assembling will be described.

First, a process of adjusting the protruding length of the cutting edge 20 provided in the boring head 1 will be described. An insertion part 11 is formed on the upper portion of the cylindrical housing 10, and the Insertion holes 12 are formed in the outer surface, and a through hole 13 connecting the insertion part 11 and the insertion hole 12 in the longitudinal direction is formed in the upper portion of the housing 10.

The insertion portion 11 is provided with a cutting edge 20 for drilling a hole in the workpiece or widening the drilled hole, and the connection piece 30 having one side grounded with the cutting edge 20 is inserted in the through hole 13. In addition, the insertion hole 12 is inserted into the adjustment member 40 for adjusting the position of the connecting piece (30).

The connection piece 30 is formed with a first protrusion 32 and a second protrusion 34 protruding upward and downward about a central axis, and one side of the cutting edge 20 is formed of the first connection piece 30. An inclined surface 22 having an inclination corresponding to the inclined surface of the first protrusion 32 is formed, and one side of the adjusting member 40 has an inclination corresponding to the inclined surface of the second protrusion 34 of the connecting piece 30. The protrusion 42 having the inclined surface is protruded.

When the cutting blade 20 protrudes from the housing 10, the control member 40 inserted into the insertion hole 13 of the housing 10 prevents the control member 40 from being separated. When the fixing means 50, which serves to adjust the position, is moved inwards by the pecking, the adjusting member 40 pushes the connecting piece 30 upward, and the connecting piece 30 rises upward. As a result, the cutting edge 20 protrudes out of the housing 10.

On the contrary, when inserting the cutting edge 20 into the housing 10, the fixing means 50 is cut off the adjustment member 40 inserted into the insertion hole 13 of the housing 10 When the adjusting member 40 is moved to the outside by releasing), the connecting piece 30 grounded with the adjusting member 40 is lowered, and the connecting piece 30 moves downward. The cutting blade 20 grounded with the connecting piece is moved inside the housing 10.

In addition, a process of adjusting the protruding length of the guide bar 70 provided in the boring head 1 will be described. In the housing 10, a hollow hole 14 penetrating through the housing in a longitudinal direction is formed in the housing 10. Insertion grooves 15 are formed in the vertical direction about the hollow hole 14, and a connection hole 16 connected to the hollow hole 14 is formed on the outer surface of the housing 10. .

The connection hole 16 is preferably formed in the lower portion of the insertion hole 12 into which the adjustment member 40 is inserted.

A guide bar 70 is inserted into the plurality of insertion grooves 15. An inclined surface 72 is formed at one side of the guide bar 70, and the guide bar 70 is inserted into the hollow hole 14. The adjusting piece 80 to adjust the length of the inserted, the adjusting piece 80 is formed with a first inclined surface 82 and the second inclined surface 84 having different inclination angle from the outside to the inside.

The connecting hole 16 is inserted into the first adjusting member 90 for adjusting the position of the adjusting piece 80 inserted into the hollow hole 14, the one side of the first adjusting member 90 An inclined surface 92 having the same inclination angle as the second inclined surface 84 of the adjusting piece 80 is formed.

In order to protrude the guide bar 70 to the outside of the housing 10, when the first adjusting member 90 inserted in the connecting hole 16 is moved from the inside to the outside, the adjusting piece 80 It moves from the top to the bottom, and the adjusting piece 80 is moved to the bottom to protrude the guide bar 70 from the inside of the housing to the outside.

On the contrary, in order to insert the guide bar 70 into the inside of the housing, when the first adjusting member 90 is moved from the outside to the inside of the housing, the guide bar 70 is grounded with the first adjusting member 90. The adjusting piece 80 is moved upwards, and the guide bar 70 is inserted from the outside of the housing 10 to the inside while the adjusting piece 80 moves upward.

When the protruding length of the cutting blade 20 and the guide bar 70 provided on the housing 10 is adjusted, the housing cover 60 is fastened to the upper portion of the housing 10, and the housing Fixing pad 62 and fixing portion 64 provided in the cover 60 is to fix the cutting edge 20 and the guide bar 70, respectively.

It is preferable that the cutting edge 20 protruding to the outside of the housing 10 protrudes slightly more than the protruding length of the guide bar 70.

The reason why the protruding length of the cutting edge 20 is slightly longer than the protruding length of the guide bar 70 is to facilitate the operation of drilling a hole in the workpiece or widening the drilled hole. If the protruding length of the guide bar 70 is the same, it is because the cutting edge 20 is not able to perform the operation of drilling or widening the hole.

Therefore, by adjusting the protruding length of the cutting edge 20 and the guide bar 70 provided in the boring head 1 of the present invention, working time by not replacing the boring head according to the diameter of the workpiece to be worked Due to the shortened, improved operator's convenience, and the absence of a plurality of boring heads having different working diameters, it is possible to reduce equipment costs and to provide a guide bar for preventing sagging and shaking of the boring head. The failure rate that occurred during drilling and widening of holes can be reduced.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Boring Head 10: Housing
20: cutting edge 30: connecting piece
40: adjusting member 50: fixing means
60: housing cover 70: guide bar
80: adjusting piece 90: first adjusting member

Claims

In the boring head mounted on the boring equipment,
A housing having an insertion portion formed on an upper portion of the cylindrical body, an insertion hole formed on an outer surface of the body, and a through hole connecting the insertion portion and the insertion hole;
A cutting edge provided in the insertion portion of the housing and for finishing the hole of the cylinder liner;
A connection piece inserted into the through hole and the cutting edge and one side of which are grounded;
An adjustment member inserted into the insertion hole and adjusting a position of the connection piece;
Fastening means fastened to the insertion hole to prevent separation of the adjustment member inserted into the insertion hole, and adjusting the position of the adjustment member;
A housing cover fastened to an upper portion of the housing to fix the cutting edge;
The connecting piece has a cylindrical shape, a boring head, characterized in that the upper end of the connecting piece is formed with a first protrusion protruding upwards, the lower end of the connecting piece is formed with a second protrusion protruding downward.

delete

The method according to claim 1,
One side of the cutting edge boring head is formed with an inclined surface sliding in contact with the inclined surface of the first protrusion projecting upward from the upper end of the connecting piece.

The method according to claim 1,
Boring head is formed on one side of the adjustment member has a protrusion having an inclined surface sliding in contact with the inclined surface of the second protrusion projecting downward from the lower end of the connecting piece.

The method according to claim 1,
A boring head is provided on the lower side of the housing cover is provided with a fixing pad fixed to the upper portion of the cutting edge at a position corresponding to the position of the cutting edge.

The method according to claim 1,
In the housing,
A hollow hole penetrating the housing in the longitudinal direction at the center of the housing;
A plurality of insertion grooves formed in a direction perpendicular to the hollow hole with respect to the hollow hole;
Boring head, characterized in that the connection hole is formed in the outer surface of the housing is connected to the hollow hole.

The method of claim 6,
Boring head is provided in the insertion groove is provided with a guide bar for preventing shaking and sagging of the housing.

The method of claim 7,
Boring head which is inserted into the hollow hole the adjusting piece for adjusting the protruding length of the guide bar.

The method according to claim 8,
The boring head has a cylindrical shape, the first inclined surface and the second inclined surface having a different inclination angle from the outer side to the inner side of the adjustment piece, respectively.

The method according to claim 9,
Boring head is formed on one side of the guide bar has an inclined surface having the same inclination angle as the first inclined surface of the adjusting piece.

The method of claim 10,
The boring head is provided in the connection hole is provided with a first control member for adjusting the position of the adjustment piece inserted into the hollow hole, and a fixing means for preventing the first control member from being separated from the connection hole.

The method of claim 11,
One side of the first adjustment member is boring head is formed integrally with the control piece inserted into the hollow hole, the inclined surface having the same inclination angle as the second inclined surface provided on the lower portion of the adjusting piece.

The method of claim 7,
Boring head having a fixing portion for fixing the guide bar in the housing cover.

The method according to claim 13,
The fixed part boring head consisting of a stopper pin, a polishing rod and an elastic member.