KR101626946B1

KR101626946B1 - drill machine

Info

Publication number: KR101626946B1
Application number: KR1020160006515A
Authority: KR
Inventors: 석대환
Original assignee: 석대환
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2016-06-02
Also published as: CN206605071U

Abstract

The present invention relates to a drill machine of a new structure capable of easily extending a length thereof and preventing chips or dust generated when drilling a hole in an object from scattering to the periphery.
The drill machine according to the present invention is advantageously provided with an adapter (A) coupled to the chuck (3) so that it can be conveniently used when drilling the hole (6) in the high ceiling (5).
Particularly, the adapter A is provided to extend in the front and rear direction, the rear end portion is coupled to the chuck 3, and the auxiliary chuck 11 configured to detachably couple the drill bit 4 and the like to the front end portion A first tubular body 20 provided on the outer side of the rotary shaft 10 and a second tubular body 20 provided on the outer side of the rotary shaft 10 and having a rear end formed on the front end of the first tubular body 20 in the longitudinal direction , A collecting part (40) extending forwardly to surround the periphery of the auxiliary chuck (11) at a front end of the second tube body (30), a second tubular body And an elastic member 50 provided between the first and second tubes 20 and 30 so as to elastically press the second tube 30 and the collecting unit 40 forward. Chips and dust generated when the hole 6 is pierced are collected in the collecting part 40 and the first and second tubes 20 and 30 to be used as chips or dust There is an advantage that can prevent scattering.

Description

[0001] DRILL MACHINE [0002]

The present invention relates to a drill machine of a new structure capable of easily extending a length thereof and preventing chips or dust generated when drilling a hole in an object from scattering to the periphery.

Generally, as shown in FIG. 1, a drill machine used when an operator drills a hole of an object comprises a main body 1 and a drive shaft 2a provided in the main body 1 and extending in the longitudinal direction And a chuck 3 provided at a front end of a drive shaft 2a of the drive motor 2 and capable of detachably coupling a drill bit 4, , The drill is rotated to form a hole in the object.

However, such a drill machine is held by a user's hand, and in order to drill a hole in a high ceiling or the like, a ladder or the like must be stepped on and operated.

In addition, when such a drilling machine is used to drill a hole, chip or dust is generated in the object. Such a chip or dust is scattered to the periphery, and the periphery becomes dirty. Also, since such chip or dust is blown to the worker, In some cases.

Therefore, there is a need for a new method to solve such a problem.

In addition, the drill machine performs various operations by combining various components, such as driver tabs, in addition to the drill bit 4 on the chuck 3.

Registration Utility Model 20-0355535

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a drill machine of a new structure which can easily extend its length and prevent chip or dust generated when drilling a hole in an object from scattering around. There is a purpose.

In order to achieve the above object, the present invention provides a driving apparatus for a vehicle, comprising a main body, a driving motor provided in the main body and having a driving shaft extending in the front- (3) provided at a front end portion of a drive shaft (2a) of the chuck (3) and capable of detachably coupling a drill bit (4) or the like, The adapter A is provided to extend in the front and rear direction and the rear end of the adapter A is coupled to the chuck 3 and the front end of the adapter A is detachably coupled to the drill bit 4, A first tubular body 20 provided on the outer side of the rotary shaft 10 and a second tubular body 20 provided on the outer side of the rotary shaft 10 and having a rear end portion of the first tubular body 20, A second tube body 30 slidably coupled to the front end of the second tube body 30 so as to be slidable in the longitudinal direction; An elastic member 50 for elastically pressing the second tubular body 30 and the collecting part 40 so as to advance the second tubular body 30 and the collecting part 40 by being connected to the second tubular body 30; ) Of the drill machine.

According to another aspect of the present invention, there is provided a drill machine, wherein a discharge port (21) extending laterally is formed at the rear end of the first tube body (20).

According to another aspect of the present invention, a diameter-enlarged diameter portion 22 is formed at the rear end of the first tube body 20, and the enlarged diameter portion 22 is fixed to the periphery of the chuck 3 A drill machine is provided, characterized in that the support tube (23) to be coupled is rotatably coupled.

According to another aspect of the present invention, when the second tubular body 30 and the collecting part 40 are provided in the first and second tubes 20 and 30 and are retracted by a predetermined length, (71, 72) for stopping the operation of the drill machine.

According to another aspect of the present invention, the operation control means 71 and 72 include first and second brackets 25 and 31 fixed to the first tube body 20 and the second tube body 30, respectively, And a limit switch 71 and a push bar 72 provided respectively to the first bracket 25 and the second bracket 31. The limit switch 71 protrudes toward the push bar 72 A push button 71a is provided to stop the drive motor 2 when the push button 71a is pressed by the push bar 72. [

According to still another aspect of the present invention, there is provided an anti-vibration member (60) provided inside the first or second body (20, 30) to prevent the rotation shaft (10) from being vibrated, The preventing member 60 includes an inner supporting portion 61 having a diameter larger than the outer diameter of the rotary shaft 10 and having a ring shape with one side opened and an inner supporting portion 61 extending outward from both ends of the inner supporting portion 61 And an outer supporting part 63 extending in opposite directions at an outer end of the connecting part 62 and being tightly fixed to an inner circumferential surface of the first or second tubular body 20 or 30, Drill machines are provided

According to another aspect of the present invention, there is further provided a lifting mechanism (B) provided on the main body (1) so as to extend rearwardly, the lifting mechanism (B) A pair of support bars 82 and 83 extending rearward from the rear end of the holder 81 and extending in the lateral direction and having one end hinged to the rear ends of the support bars 82 and 83, And a foot 84 formed on the other end so as to be rounded upward and formed with a pressing portion 84a that can be stepped on by a worker.

The drill machine according to the present invention is advantageously provided with an adapter (A) coupled to the chuck (3) so that it can be conveniently used when drilling the hole (6) in the high ceiling (5).

Particularly, the adapter A is provided to extend in the front and rear direction, the rear end portion is coupled to the chuck 3, and the auxiliary chuck 11 configured to detachably couple the drill bit 4 and the like to the front end portion A first tubular body 20 provided on the outer side of the rotary shaft 10 and a second tubular body 20 provided on the outer side of the rotary shaft 10 and having a rear end formed on the front end of the first tubular body 20 in the longitudinal direction , A collecting part (40) extending forwardly to surround the periphery of the auxiliary chuck (11) at a front end of the second tube body (30), a second tubular body And an elastic member 50 provided between the first and second tubes 20 and 30 so as to elastically press the second tube 30 and the collecting unit 40 forward. Chips and dust generated when the hole 6 is pierced are collected in the collecting part 40 and the first and second tubes 20 and 30 to be used as chips or dust There is an advantage that can prevent scattering.

1 is a reference view showing a general drill machine,
2 is a side view of a drill machine according to the present invention,
3 is a side cross-sectional view of a drill machine according to the present invention,
4 is a side sectional view showing an adapter of a drill machine according to the present invention,
Fig. 5 is a front sectional view showing a cross-sectional view taken along the line CC in Fig. 4,
6 is a perspective view showing a vibration preventing member of a drill machine according to the present invention,
7 to 10 are reference views for explaining the operation of the drill machine according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 10 show a drilling machine according to the present invention, which is used for piercing a hole 6 in a ceiling 5.

The drill machine comprises a main body 1, a drive motor 2 provided in the main body 1 and provided with a drive shaft 2a extending in the fore and aft direction, And a chuck 3 provided at the front end and capable of detachably coupling the drill bit 4 and the like.

According to the present invention, there is further provided an adapter (A) detachably coupled to the chuck (3) and an elevating mechanism (B) detachably coupled to the main body (1).

4, the adapter A is provided to extend in the front-rear direction, the rear end thereof is coupled to the chuck 3, and the drill bit 4 or the like is detachably coupled to the front end thereof. A first tubular body 20 provided on the outer side of the rotary shaft 10 and a second tubular body 20 provided on the outer side of the rotary shaft 10, A second tube body 30 slidably coupled to the front end of the first tube body 20 so as to be slidable in the longitudinal direction and a second tube body 30 extending forwardly to surround the periphery of the auxiliary chuck 11 at the front end of the second tube body 30, An elastic member 50 connected to the second tubular body 30 to elastically press the second tubular body 30 and the collecting unit 40 forward so as to advance the second tubular body 30 and the collecting unit 40, (60) provided inside the first tubular body (30) to prevent the rotation shaft (10) from being vibrated, And operation control means 71 and 72 for stopping the operation of the driving motor 2 when the second tubular body 30 and the collecting portion 40 are retracted by a predetermined length.

The rotation shaft 10 is formed in a hexagonal bar shape having a high strength and is configured to fix the rear end portion to the chuck 3 while the auxiliary chuck 11 is fixed to the chuck 3 And the chuck 3 is rotated by driving the driving motor 2 so that the rotary shaft 10 and the auxiliary chuck 11 are coupled together at the front end of the rotary shaft 10 .

The first tubular body 20 is made of a synthetic resin material having a high strength and has an inner diameter larger than the outer diameter of the rotary shaft 10 so that the space between the first tubular body 20 and the second tubular body 30 Is formed.

At this time, a discharge port 21 extending in the lateral direction and a diameter-enlarged diameter portion 22 are formed at the rear end of the first tubular body 20.

A support tube 23 fixedly coupled to the periphery of the chuck 3 is rotatably coupled to the enlarged diameter portion 22.

The support tube 23 is formed in the shape of a single pipe having an engaging portion 23a through which the chuck 3 is inserted and formed on the inner surface of the rear end portion. And is rotatably coupled to the inside.

Therefore, even if the chuck 3 is rotated by the drive motor 2 while the support tube 23 is fixed to the chuck 3, only the support tube 23 is rotated and the first tube 20 is rotated The rear end portion is not supported in the support tube body 23 and is not rotated.

The rear end of the second tubular body 30 is slidably coupled to the inside of the first tubular body 20 in the front-rear direction.

The collecting part 40 is formed at the rear end thereof with a coupling hole 41 into which the distal end of the second tubular body 30 is fitted. The front end of the collecting part 40 has a funnel shape and is made of a transparent synthetic resin material.

When the second tubular body 30 is completely advanced by the elastic member 50, the first and second tubular bodies 20 and 30 and the collecting unit 40 are separated from each other by the tip of the collecting unit 40 Is positioned on the same plane as the end of the drill bit (4) coupled to the auxiliary chuck (11).

The elastic member 50 uses a compression coil spring which is fitted on the outer sides of the first and second tubes 20 and 30 and pushes the second tube 30 forward.

At this time, first and second brackets 25 and 31 are provided on outer circumferences of the first and second tubes 20 and 30, and both ends of the elastic member 50 are connected to the first and second brackets (20, 30) so as to be fixed to the adjacent surfaces of the first and second tubes (25, 31).

As shown in FIGS. 5 and 6, the vibration preventing member 60 is formed by bending a strip of an elastic metal material. The vibration preventing member 60 has a diameter larger than the outer diameter of the rotating shaft 10, (62) extending outward from both ends of the inner support portion (61), and a second connection portion (62) extending in opposite directions at an outer end of the connection portion (62) And an outer supporting portion 63 which is tightly fixed to the inner peripheral surface of the tube 30.

Therefore, the circumferential surface of the rotary shaft 10 is caught by the inner circumferential surface of the inner support portion 61, and the rotary shaft 10 is supported so as not to move in the lateral direction.

4, the operation control means 71 and 72 are constituted by a limit switch 71 and a push bar 72 provided in the first bracket 25 and the second bracket 31, respectively .

The limit switch 71 is provided in the first bracket 25 and is connected to the intermediate portion of a power line connected to the drive motor 2 to apply power to the drive motor 2, A push button 71a extending forward toward the bar 72 is provided so that the power supplied to the drive motor 2 through the power supply line is cut off when the push button 71a is pressed, Stop.

The push bar 72 is formed with a slot 72a extending in the forward and backward direction and is inserted through the slot 72a and is inserted into the second bracket 31, The rear end of the second tubular body 30 is brought into close contact with the push button 71a of the limit switch 71 to press the push button 71a .

7, the main body 1 is pressed toward the ceiling 5 after driving the drive motor 2 in a state in which the end portion of the collecting portion 40 is in close contact with the ceiling 5, The main body 1 and the rotary shaft 10 and the first tube 20 are relatively advanced while the second tubular body 30 is retracted so that the drill bit 4 coupled to the rotary shaft 10 The surface of the ceiling 5 is digged into the hole 6 to form the hole 6.

At this time, when the drill bit 4 fills the surface of the ceiling 5 and the hole 6 is formed, the second tubular body 30 and the second bracket 31 And the push bar 72 are retracted.

When the depth of the hole 6 is increased by the distance between the rear end of the push bar 72 and the limit switch 71, the push bar 72 presses the push button 71a of the limit switch 71 The operation of the drive motor 2 is stopped so that the drill bit 4 no longer digs into the ceiling 5.

The elevating mechanism B includes a holder 81 detachably coupled to the main body 1, support bars 82 and 83 extending rearward from the rear end of the holder 81, And a stepped plate 84 having one end hinged to the rear end of the support bars 82 and 83 and a pressing part 84a extended to the upper end so as to be stepped on by the operator.

The support bars 82 and 83 are composed of first and second support bars 82 and 83 slidably coupled to each other. As shown in FIG. 8, after the second tube 83 is slid The length of the entire support bars 82 and 83 can be adjusted by fixing the second tubular body 83 so as not to be slid by using an unillustrated fastening means.

10, in a state in which the collecting portion 40 and the drill bit 4 are directed upward and the foot plate 84 is brought into close contact with the bottom surface 7 as shown in Fig. 9, As shown in the figure, when the operator presses the pressing portion 84a of the foot plate 84, the foot plate 84 is rotated while the pressing portion 84a is attached thereto, The entire drill machine including the holder 81 is elevated, so that it can be conveniently used when drilling the hole 6 in the ceiling 5.

The drill machine thus constructed is provided with an adapter A which is coupled to the chuck 3 and has an advantage that it can be conveniently used when drilling the hole 6 in the high ceiling 5. [

A discharge port 21 extending laterally is formed at the rear end of the first tube 20 so that the collected chips 40 and the chips collected in the first and second tubes 20, And dust are discharged to the outside through the discharge port 21, so that collected chips and dust can be easily handled.

Particularly, when a separate collecting bag or a vacuum cleaner is connected to the discharge port 21, chips or dust collected inside the collecting unit 40 and the first and second tubes 20 and 30 can be more effectively treated .

The enlarged diameter portion 22 is formed at the rear end of the first tube 20 and the support tube 23 fixedly coupled to the periphery of the chuck 3 is provided in the enlarged diameter portion 22, So that the rear end of the first tube 20 is firmly supported on the chuck 3. [

The first and second tubes 20 and 30 include operation control means for stopping the operation of the drive motor 2 when the second tube body 30 and the collecting portion 40 are retracted by a predetermined length 71 and 72 are provided.

Particularly, the operation control means 71 and 72 include first and second brackets 25 and 31 fixed to the first tube body 20 and the second tube body 30, respectively, The limit switch 71 includes a push button 71a protruding toward the push bar 72 and a push button 71a projecting toward the push bar 72. The limit switch 71 is connected to the first bracket 31, And the driving motor 2 is stopped when the push button 71a is pressed by the push bar 72. [

Therefore, when the depth of the hole 6 formed by the drill bit 4 becomes deeper by the distance between the push bar 72 and the limit switch 71, the drive motor 2 is automatically stopped, There is an advantage that the depth of the hole 6 to be excavated can be accurately adjusted by using the drill bit 4 because the hole 6 is not held.

At this time, by positioning the push bar 72 in the forward and backward directions and separating the push bar 72 and the limit switch 71, the drill bit 4 is used to dig holes 6 of various depths It is also possible.

The vibration preventing member 60 is provided inside the second tube body 30 to prevent the vibration of the rotating shaft 10, and the vibration preventing member 60 has an outer diameter An inner supporting portion 61 having a diameter larger than that of the inner supporting portion 61 and having a ring shape with one side opened and a connecting portion 62 extending outward from both ends of the inner supporting portion 61, And an outer support portion 63 extending in mutually opposite directions at the end portions and tightly fixed to the inner circumferential surface of the second tubular body 30 so that it is possible to effectively prevent the rotation shaft 10 from being vibrated in the lateral direction There are advantages to be able to.

The elevator device B includes a holder 81 detachably coupled to the main body 1 and a holder 81 connected to the holder 81. The holder 81 is detachably attached to the main body 1, And one end of the support bar 82 is hinged to the rear end of the support bars 82 and 83 and the other end of the support bar 82 is extended to be rounded upward, And the foot 84 is formed so that the foot 84 can be stepped on the foot 7. When the foot 84 is placed on the floor 7 and then the pressing portion 84a is depressed, 5 are formed with holes 6.

Therefore, it is more convenient to use than the conventional drill machine in which the operator has to hold the main body 1 by his hand in order to form the hole 6 in the ceiling 5 and push it upward.

The limit switch 71 is provided on the first bracket 25 and the push bar 72 is provided on the second bracket 31. However, And the position of the push bar 72 may be changed.

Although the vibration preventing member 60 is provided inside the second tubular body 30, the vibration preventing member 60 may be provided in the first tubular body 20, And can be provided inside the tubes 20 and 30, respectively.

A. adapter 10. rotating shaft
20. First tube 30. Collecting section
50. Elastic member 60. Anti-vibration member
70. Operation control means B. Lift mechanism

Claims

A drive motor 2 provided in the main body 1 and provided with a drive shaft 2a extending in the front and rear direction and a drive motor 2 provided at a front end of the drive shaft 2a of the drive motor 2, A drill machine comprising a chuck (3) adapted to detachably couple a bit (4), etc.,
Further comprising an adapter (A) detachably coupled to the chuck (3)
The adapter (A)
A rotary shaft 10 having a rear end portion coupled to the chuck 3 and a front end portion having an auxiliary chuck 11 detachably coupled to the drill bit 4,
A first tubular body 20 provided on the outer side of the rotary shaft 10,
A second tubular body 30 provided at the outer side of the rotary shaft 10 and having a rear end slidably coupled to a front end of the first tubular body 20 in the longitudinal direction,
A collecting part 40 extending forward from the front end of the second tube 30 to surround the periphery of the auxiliary chuck 11,
An elastic member 50 connected to the second tubular body 30 to elastically press the second tubular body 30 and the collecting unit 40 forward,
Operation control means provided in the first and second tubes 20 and 30 to stop the operation of the drive motor 2 when the second tube 30 and the collecting portion 40 are retracted by a predetermined length 71, 72)
The operation control means (71, 72)
First and second brackets (25, 31) fixed to the first tube body (20) and the second tube body (30), respectively,
A limit switch 71 and a push bar 72 provided on the first bracket 25 and the second bracket 31, respectively,
The limit switch 71 is provided with a push button 71a protruding toward the push bar 72 so that the push button 71a is pressed by the push bar 72 so that the drive motor 2 is stopped Wherein the drilling machine comprises:

The method according to claim 1,
And a laterally extending outlet (21) is formed in the rear end of the first tube (20).

The method according to claim 1,
A diameter-enlarged diameter portion 22 is formed at the rear end of the first tube 20,
And a support tube (23) fixedly coupled to the periphery of the chuck (3) is rotatably coupled to the enlarged diameter portion (22).

delete

The method according to claim 1,
Further comprising an anti-vibration member (60) provided inside the first or second body (20, 30) to prevent the rotation shaft (10) from being vibrated,
The anti-vibration member (60)
An inner supporting portion 61 having a diameter larger than the outer diameter of the rotary shaft 10 and having a ring shape with one side opened,
A connection portion 62 extending outward from both ends of the inner support portion 61,
And an outer supporting part (63) extending in mutually opposite directions at an outer end of the connecting part (62) and tightly fixed to the inner circumferential surface of the first or second tube body (20, 30).

The method according to claim 1,
Further comprising an elevating mechanism (B) provided on the main body (1) so as to extend rearward,
The elevating mechanism (B)
A holder 81 detachably coupled to the main body 1,
Supporting bars 82 and 83 extending rearward from the rear end of the holder 81,
A foot plate 84 formed to extend in the lateral direction and hinged to a rear end of the support bars 82 and 83 at one end thereof and having a pressing portion 84a extended to be rounded upward at the other end, The drill machine comprising: