KR101582970B1

KR101582970B1 - Tool device for counter sinking

Info

Publication number: KR101582970B1
Application number: KR1020150079232A
Authority: KR
Inventors: 현승호
Original assignee: 현승호
Priority date: 2015-06-04
Filing date: 2015-06-04
Publication date: 2016-01-06

Abstract

The present invention relates to a counter-sinking tool, and more particularly, to a counter-sinking tool for a tool apparatus that is connected to various power generators to perform a counter boring operation. The tool is detachably fastened to a tool gear of a tool, The present invention relates to a counter sinking tool capable of smoothly and reliably performing a counter boring operation by further preventing a departure from engagement after engagement by further forming a departure preventing portion at a contact portion of each other.

Description

Tools for counter sinking {TOOL DEVICE FOR COUNTER SINKING}

The present invention is provided in a boring and chamfering counterbore tooling device for a backface hole, in which a tool for performing a counter boring operation by receiving a rotational force is mounted on a tool gear in a counter boring operation on a hole of a workpiece, So that a safe operation can be performed.

Generally, a drill is used to drill a hole for bolting to a workpiece during an assembling operation, and the drill is mainly used in a drilling machine. Alternatively, a hole can be drilled using a milling machine.

When a bolt is fastened to a hole completed by drilling by such a drilling machine, the bolt head or nut may come out higher than the surface, or it may be buried in the body of the workpiece, or a sharp portion may be removed, The counter boring operation is performed. Such a spot facing operation is mainly performed by the counter bores.

In addition, the counter bore is provided with a cutting portion for cutting the workpiece and an angle portion for discharging the cut portion by the cutting portion, thereby spot-facing the counter bore.

However, since the conventional counter bore is formed integrally with the drill part, when the number of the blades of the counter bore is two or more, high precision is required, which makes the manufacture itself difficult. There is a problem that the whole must be replaced.

Further, there is a problem in that when the drilling operation is performed by the drilling machine, the drill portion is broken due to a relatively large force as compared with the counter bore formed integrally with the drill portion.

In addition, when the counterboring operation is performed between the workpiece and the workpiece, since the counterbore is positioned through the side surface, the boring operation is not easy and the space corresponding to the length of the counterbore must be formed. There is a problem that it can not be done.

Particularly, in the case of a cast product, the surface is irregular, and when a bolt or a nut is fastened, a clearance is formed between the surface of the work and the fastening portion of the bolt and the nut.

Published Patent Application No. 10-2010-0043171 Published Utility Model Publication No. 20-2000-0016369 Published Patent Application No. 10-2003-0089638

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a boring and chamfer counterboring tool for a backface hole detachably attached to various drilling machines, milling machines, And a release preventing portion formed in an O-ring shape or a ball spring shape so that the tool can be detached from the tool gear at the time of mounting, There is a purpose.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

The invention provides a tool for countersinking installed in a boring and chamfering counterbore tooling (100) for a backface hole for counterboring work in a hole of a workpiece, A tool 60 detachably attached to one end tool gear 50 of the tool 100 and rotated by the rotational force of the tool gear 50 to perform a counter boring operation directly on the workpiece; A separation preventing portion 80 formed at an outer periphery of the tool 60 to prevent the tool 60 from being separated from the tool gear 50; And a control unit.

As described above, according to the present invention, in the case of a tool installed in the boring and chamfering counterbore tooling for the backface hole, a separation preventing portion is formed at the contact portion with the tool gear, .

Further, the counter-sinking tool of the present invention is installed in a boring and chamfering counter bore tooling device for a backface hole detachably attached to a power generating device such as a drilling machine, a milling machine, etc., and performs a counterboring operation on a workpiece As a result, it is possible to attach and detach to any power generating device, so that practicality and efficiency are good, and only a part required for breakage or replacement can be replaced, thereby reducing the cost.

The present invention also allows the boring and chamfering counterbore tooling apparatus with the tool of the present invention to be positioned through the side surface during counterboring operations between the workpiece and the workpiece or in the backface of the workpiece, , The boring and chamfering counterbore tool apparatuses are low in height, so there is no restriction on the working space, and boring work can be performed in various places.

FIG. 1 is a schematic view showing a tool having a release preventing portion according to an embodiment of the present invention; FIG.
3 is an operation diagram according to an embodiment of a departure prevention portion according to the present invention;
4 is a perspective view of another embodiment of a tool for counter sinking according to an embodiment of the present invention;
FIG. 5 is a conceptual diagram showing an embodiment of a method of using a tool device provided with a counter sinking tool according to the present invention. FIG.
6 is a front view showing a tool device equipped with a tool for counter sinking according to the present invention,
FIG. 7 is a sectional view of FIG. 6; FIG.
FIG. 8 is a perspective view of an embodiment of a tooling apparatus provided with a counter sinking tool according to the present invention and further including a support bar according to the present invention. FIG.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

The tool for countersinking, which is installed in a boring and chamfering counter bore tooling device (100) for a backface hole for a counter boring operation in a hole of a workpiece according to an embodiment of the present invention, A tool 60 detachably attached to one end tool gear 50 of the tool gear 50 and rotated by the rotational force of the tool gear 50 to directly perform a counter boring operation on the workpiece; A separation preventing portion 80 formed at an outer periphery of the tool 60 to prevent the tool 60 from being separated from the tool gear 50; And a control unit.

In addition, the release preventing portion 80 includes an insertion hole 66 formed at a predetermined length from the outer periphery of the tool 60 toward the inside thereof; An elastic member 67 installed in the insertion hole 66; A release cigarette 68 installed in the insertion hole 66 and projecting to the outer periphery of the tool 60 locally by the elastic force of the elastic member 67; A fastening groove 69 formed at the inner periphery of the tool gear 50 so that the protruding portion of the releasing rest 68 is correspondingly inserted when the tool 60 is engaged with the tool gear 50; And a control unit.

The fastening groove 69 is formed in a semicircular shape corresponding to the protrusion of the release reservoir 68 or is formed in a ring shape along the inner circumferential circumferential surface of the tool gear 50 do.

The release preventing portion 80 includes an O-ring engagement groove 65 formed at the outer periphery of the tool 60 to seal the gap between the tool 60 and the tool gear 50 when the tool 60 is engaged with the tool gear 50. An O-ring 64 fitted into the O-ring engagement groove 65; .

In addition, the tool 60 includes a boring portion 61 for performing a counter boring operation directly on the workpiece; And a coupling part 62 integrally formed on one end face of the boring part 61 and inserted into the center of the tool gear 50 and having a coupling groove 63 for coupling the coupling pin to the outer periphery , And the tool (60) is detachable by the connecting pin.

In addition, the counter-sinking tool 100 includes a housing 10 which is separated upward / downward; A power shaft (20) for transmitting rotational power of the power generating device; The driving shaft 20 is provided inside the housing 10 and has one side protruding from one end surface of the housing 10 and connected to the power shaft 20. The driving shaft 20 transmits the rotational force transmitted from the power shaft 20 horizontally, (30); An idle gear 40 provided inside the housing 10 for engaging with the driving gear 30 and transmitting rotational force in the same direction; A tool gear (50) provided inside the housing (10) and engaged with the idle gear (40) to transmit rotational force; And a control unit.

A support bar 11 is further formed on the outer surface of the housing 10 so that the housing 10 is supported without being rotated along the power shaft 20 when the power shaft 20 rotates, And one side of the housing 11 is supported by the member to prevent the housing 10 from rotating.

A plurality of idle gears 40 are provided according to the length of the housing 10. The idle gears 40 are formed in an odd number of teeth including the driving gear 30 and the tool gear 50, And the tool gear 50 is rotatable in the same direction.

Hereinafter, a tool for counter sinking according to a preferred embodiment will be described in detail with reference to FIGS. 1 to 8. FIG.

As shown, the tool for countersinking according to the present invention includes a tool 60 and an escape preventing portion 80.

The tool 60 includes a boring and chamfering counter bore tooling 100 for a backface hole for a counter boring operation in a hole (work area) of a workpiece (workpiece) (hereinafter referred to as a "tool device" And is detachably mounted on the tool gear 50 at one end of the various tool devices, and is subjected to a counter boring operation on the workpiece of the workpiece by receiving the rotational force. The configuration of the tool device including such a tool 60 will be described in detail below.

The release preventing portion 80 is fixedly mounted without being easily detached from the tool gear 50 after the tool 60 is mounted on the tool gear 50 so that the rotational force can be smoothly transmitted from the tool gear 50 .

In the present invention, two embodiments are proposed as the departure prevention part 80 for this purpose.

1 to 3, the release preventing portion 80 is formed as a ball spring. The release preventing portion 80 includes an insertion hole 66, an elastic member 67, A releasing chamber 68, and a fastening groove 69.

An insertion hole 66 is formed in the upper end outer periphery (more specifically, the outer periphery of the connection portion) of the tool 60 inserted into the tool gear 50 so as to be inwardly punched to the center and horizontal with the ground surface, So that the elastic member 67 and the releasing-preventing portion 68 are sequentially inserted into the elastic member 66.

At this time, one side of the insertion hole 66 (the outer circumferential side of the tool 60) is formed with a narrow portion where the diameter gradually decreases, and is inserted into the insertion hole 66 by the elastic member 67 A portion of the outer periphery has a structure that locally protrudes into the outer periphery of the tool 60 through the insertion hole 66 without being released to the outside of the insertion hole 66. [

In addition, the inner peripheral edge of the tool gear 50 into which the tool 60 is inserted is provided with a fastening groove 69 (corresponding to the outer peripheral edge of the tool 60) The breakaway portions 80 of the ball spring may be formed in the tool 60 in a single or a plurality of holes or a plurality of holes. It may be recessed in a semicircular shape to correspond to the protrusion of the release reservoir 68 or may be recessed in the shape of a ring along the inner circumferential circumferential surface of the tool gear 50. [

The separation preventing portion 80 of the second embodiment is provided with an outer circumference (more specifically, an outer circumference of the connection portion) of the tool 60 so that an O-ring 64, which seals the gap, The O-ring engagement groove 65 is formed in the circumferential direction.

In the following, a tool device (such as a boring and chamfering counterbore tooling device 100 for a back face hole) in which the aforementioned tool 60 described above is mounted will be described in detail with reference to Figs.

The tool device 100 of the present invention is an apparatus for forming a boring, chamfer and counter bore so that bolts, nuts, and the like are not protruded beyond the surface of the workpiece in the holes formed in the workpiece, A power shaft 20, a drive gear 30, an idle gear 40, a tool gear 50, and a tool 60. Here, the tool device 100 of the present invention is easily used for forming a gap in a workpiece, a boring, a chamfer and a counter bore between a workpiece and a workpiece.

The housing 10 is divided into upper and lower housings 10 so that the upper and lower housings 10 are separated from each other. At this time, the upper and lower housings 10 are mutually connected and fixed by a coupling member such as a bolt or a nut.

A space portion (not shown) is formed in the housing 10 so that the driving gear 30, the idle gear 40 and the tool gear 50 are provided. And a through hole (not shown) is formed so that the power shaft 20 connected to the gear 30 is penetrated.

A through hole is formed in the other side surface of the housing 10 so that the tool 60 connected to the tool gear 50 passes through the through hole.

A support bar 11 is further formed on the outer surface of the housing 10 so that the housing 10 is supported without being rotated along the power shaft 20 when the power shaft 20 rotates, One side of the housing 11 is supported by a fixed device such as a member or a power generator to prevent the housing 10 from rotating.

The power shaft 20 is connected to the power generating device to transmit rotational power of the power generating device (not shown). At this time, the power generating device corresponds to a device generating a rotational force, such as a drill machine or a milling machine.

The power shaft 20 has an insertion groove 21 formed at one end thereof to insert one side of the driving gear 30 and a bolt, (30).

The other side of the power shaft 20 is connected to the power generator. The boring and chamfering counterbored tool device 100 can be used up to a long distance according to the length of the other side of the power shaft 20.

The driving gear 30 is provided inside the housing 10 and has an end protruding from one end face of the housing 10 and is fixed to the insertion groove 21 of the power shaft 20, 20) to transmit in a horizontal direction (direction perpendicular to the power shaft 20).

Here, the drive gear 30 is provided inside the housing 10 at one side thereof, and the other side thereof is protruded to the outside of the housing 10 and connected to the power shaft 20.

A plurality of bearings 70 are installed on the outer surface of the drive gear 30 to prevent the bearings 70 from being damaged due to friction with the housing 10.

The idle gear 40 is provided inside the housing 10 and is engaged with the driving gear 30 in series to transmit rotational force in the same direction.

A plurality of idle gears 40 are provided in accordance with the length of the housing 10. The idle gear 40 is rotatably supported by the driving gear 30 and the tool gear 50 such that the driving gear 30 and the tool gear 50 can rotate in the same direction. ) Are formed in an odd number. That is, the total quantity of the drive gear 30, the tool gear 50, and the idle gear 40 is formed to be an odd number (3, 5, 7 .....).

The tool gear 50 is provided inside the housing 10 and is engaged with the idle gear 40 in series to transmit rotational force to the tool 60.

A hole (not shown) is formed at the center of the tool gear 50, and the tool 60 is inserted into the hole.

A separate bearing 70 is installed on the outer surface of the idle gear 40 and the tool gear 50 in order to prevent breakage or the like due to friction with the housing 10 during rotation.

The tool 60 is detachably attached to the center hole of the tool gear 50 so as to protrude from the outside of the housing 10 and is rotatably supported by the tool 60 are rotated to perform counterboring work directly on the workpiece.

Here, the tool 60 includes a boring part 61 for performing a counter boring operation directly on the workpiece; And a connecting portion 62 integrally formed on one end surface of the boring portion 61 and coupled to the tool gear 50.

The coupling portion 62 is inserted into the central portion of the tool gear 50. The coupling groove 63 is formed on the outer periphery of the coupling portion 62 so that the coupling pin (not shown) Ring engagement groove 65 is formed in the outer circumferential surface so as to fit the O-ring 64 of the O-ring-shaped release preventing portion 80 (when engaged with the tool gear 50) The tool 60 is detachably attachable to the tool gear 50 by the connecting pin so that mutual detachment is prevented after engaging.

The boring portion 61 is formed in various shapes so as to perform various operations such as countersinking or counterbore during the counterboring work in the hole of the workpiece and is provided with a tool 60 according to the shape of the boring portion 61 ) Can be used by replacing it, so that convenience and practicality are excellent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will readily occur to those skilled in the art without departing from the spirit and scope of the invention. Therefore, it should be understood that the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense, and that the true scope of the invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof, .

10: housing 11: support bar
20: Power shaft 21: Insert groove
30: driving gear 40: idle gear
50: Tool Gear 60: Tool
61: boring part 62: connection part
63: engaging groove 64: o-ring
65: O-ring coupling groove 66: insertion hole
67: Elastic member 68:
69: fastening groove 70: bearing
80:
100: Boring and chamfering counter bore tooling

Claims

Boring and chamfering for a backface hole for counterboring work in a hole of a workpiece A tool for countersinking installed in a counterbore tooling device (100)
A tool 60 detachably attached to the tool gear 50 at one end of the tool 100 for counter sinking and rotated by the rotational force of the tool gear 50 to perform a counter boring operation directly on the workpiece;
(80) formed on the outer periphery of the tool (60) to prevent the tool (60) from being separated from the tool gear (50)
The departure prevention portion 80
An insertion hole 66 formed at a predetermined length inward from the outer periphery of the tool 60;
An elastic member 67 installed in the insertion hole 66;
A release cigarette 68 installed in the insertion hole 66 and projecting to the outer periphery of the tool 60 locally by the elastic force of the elastic member 67;
And a fastening groove 69 formed at the inner periphery of the tool gear 50 such that the protruding portion of the releasing rest 68 is correspondingly inserted when the tool 60 is engaged with the tool gear 50 ,
The fastening groove 69
Or recessed in the form of a ring along the inner circumferential circumferential surface of the tool gear 50,
The departure prevention portion 80
An O-ring engagement groove 65 formed at the outer periphery of the tool 60 to seal the gap between the tool 60 and the tool gear 50 when the tool 60 is engaged with the tool gear 50;
And an O-ring (64) fitted in the O-ring engagement groove (65)
The tool (60)
A boring portion 61 for performing a counter boring operation directly on the workpiece;
A connecting portion 62 formed integrally on one end face of the boring portion 61 and inserted into the center portion of the tool gear 50 and having an engaging groove 63 for engaging the connecting pin on the outer periphery, And is detachably attachable / detachable,
The counter sinking tool (100)
A housing 10 separated / joined up and down;
A power shaft (20) for transmitting rotational power of the power generating device;
The driving shaft 20 is provided inside the housing 10 and has one side protruding from one end surface of the housing 10 and connected to the power shaft 20. The driving shaft 20 transmits the rotational force transmitted from the power shaft 20 horizontally, (30);
An idle gear 40 provided inside the housing 10 for engaging with the driving gear 30 and transmitting rotational force in the same direction;
And a tool gear (50) provided inside the housing (10) and adapted to engage with the idle gear (40) to transmit rotational force,
A supporting bar 11 is further formed on the outer surface of the housing 10 so that the housing 10 is supported without being rotated along the power shaft 20 when the power shaft 20 rotates, Is supported on the member to prevent rotation of the housing 10,
A plurality of idle gears 40 are provided according to the length of the housing 10 and the number of the idle gears 40 including the driving gear 30 and the tool gear 50 is an odd number, (50) are rotatable in the same direction.

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