JP2010281180A - Tool guide mechanism and deep-hole drilling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool guide mechanism capable of easily changing the direction of a drain hole for discharging the used cooling water. <P>SOLUTION: This tool guide mechanism 30 used for a deep-hole drilling machine 1 for drilling a deep hole in a floor surface 2 by a long rotary tool 13 includes a guide base 20 supported on the base 10 of the deep-hole drilling machine 1 and a tool guide member 32 which has a through hole in which a guide bush 31 rotatably supporting the rotary tool 13 is fitted and guides the rotary tool 13. The tool guide member 32 is attached to the guide base 20 rotatably about the axis of the through hole. A drain chamber for storing the cooling water discharged from the front end of the rotary tool 13 is formed in the through hole of the tool guide member 32 further on the floor surface 2 side than the guide bush 31. A drain hole 37b communicating with the drain chamber is formed in the outer peripheral surface of the tool guide member 32. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a deep hole drilling machine for drilling deep holes in a work surface such as a concrete floor or wall, and a tool guide mechanism used in the deep hole drilling machine.

  As a deep hole drilling machine for drilling deep holes in a concrete floor, a base fixed to the floor, a support erected on the upper surface of the base, and a rotary tool moved along the support A lifting mechanism; a guide base attached to the base; and a tool guide member that is fixed to the guide base and guides the rotary tool. There is one provided with a water supply / drainage device that collects used cooling water from a member (for example, see Patent Document 1).

In such a conventional deep hole drilling machine, the drainage hose of the water supply / drainage device is connected to the drainage port formed on the outer peripheral surface of the tool guide member, and the water supply / drainage device uses the cooling water used from the tool guide member through the drainage hose. Is recovered.
The used cooling water discharged from the tip of the rotary tool is mixed with the concrete powder generated when the rotary tool cuts the floor surface, so the water supply / drainage device filters the recovered cooling water through a filter. , It is supplied again to the tip of the rotary tool.

JP 2008-261203 A (paragraphs 0033 to 0052, FIG. 3)

  When the above-mentioned conventional deep hole drilling machine is installed on a vertical wall surface and a horizontal deep hole is drilled in the wall surface, if the drainage port of the tool guide member faces upward, the cooling water is discharged from the drainage port. It becomes difficult. Moreover, in the conventional deep hole drilling machine, since the direction of the drainage port is fixed, the handling of the drainage hose connecting the drainage port and the water supply / drainage device may be complicated.

  Therefore, in the present invention, the above-described problems can be solved, and a deep hole can be drilled stably and reliably on a concrete work surface, and further, used cooling water can be discharged. It is an object of the present invention to provide a deep hole drilling machine and a tool guide mechanism used for the deep hole drilling machine that can easily change the direction of the drain outlet.

  In order to solve the above problems, the present invention provides a tool guide mechanism used in a deep hole drilling machine for drilling a deep hole in a work surface with a long rotary tool, and is supported on a base of the deep hole drilling machine. A guide base having a through hole into which a guide bush for rotatably supporting the rotary tool is fitted, and a tool guide member for guiding the rotary tool. It is attached to the guide base so as to be rotatable around the axis of the through hole. In the through hole of the tool guide member, the tip of the rotary tool is closer to the working surface than the guide bush. A drainage chamber for storing cooling water discharged from the section is formed, and a drainage port communicating with the drainage chamber is formed on the outer peripheral surface of the tool guide member.

  In order to solve the above-mentioned problem, as another configuration of the present invention, a deep hole drilling machine, which is detachably fixed to the concrete work surface, and is erected on the base A strut, a guide member guided along the strut, a long rotating tool with a drilling tool attached to the tip, and a rotational drive mechanism attached to the guide member for rotationally driving the rotary tool And an elevating mechanism for moving the guide member along the support column, and the tool guide mechanism.

  In these configurations, by rotating the tool guide member with respect to the guide base, the direction of the drain port formed on the outer peripheral surface of the tool guide member can be easily changed. As a result, when drilling a deep hole in a vertical wall with a deep hole drilling machine using the tool guide mechanism of the present invention, the cooling water in the drainage chamber is reliably discharged from the drainage port by directing the drainage port downward. can do. As described above, according to the present invention, the direction of the drainage port can be changed according to the use conditions, so that the used cooling water can be reliably discharged from the tool guide member. Moreover, in this invention, the direction of a drainage port can be adjusted in consideration of the handling of the drainage hose which connects a drainage port and a water supply / drainage apparatus.

In the above-described tool guide mechanism, the drainage chamber of the tool guide member is disposed on the work surface side with respect to the guide base, and a rotation shaft portion protruding from the tool guide member includes: It can comprise so that it may penetrate in the support hole formed in the said guide base.
In this configuration, the tool guide member can be rotated with a simple structure, and the manufacturing cost of the tool guide mechanism can be reduced.

In the above-described tool guide mechanism, the tool guide member is attached to the guide base via a guide holder, and the guide holder includes a cylindrical insertion portion that is inserted into the support hole, and the insertion portion. A flange portion that protrudes outward from the guide base, and the flange portion is attached to the guide base so as to be movable in a radial direction of the support hole, and the rotation shaft of the guide member is attached to the insertion portion The part can be configured to be inserted.
In this configuration, since the guide holder can be moved in the radial direction of the support hole with respect to the guide base, the position of the tool guide member can be easily fine-tuned corresponding to the axial center position of the rotary tool. it can.

  In the above-described tool guide mechanism, a brush member in which a brush protrudes from the inner surface of the through hole toward the center portion is attached to the tool guide member, and the brush is in contact with the outer peripheral surface of the rotary tool. It can be constituted as follows.

  Here, there is a possibility that the cooling water in the drainage chamber travels along the outer peripheral surface of the rotating tool and is scattered from the through hole to the outside of the tool guide member due to vibration generated in the rotating tool rotating during the drilling operation. In the above-described configuration, the brush is in contact with the outer peripheral surface of the rotary tool, and the cooling water traveling along the outer peripheral surface of the rotary tool is blocked by the brush, so that it is possible to prevent the cooling water from being scattered outside the tool guide member. it can.

In the above-described tool guide mechanism, the tool guide member includes: a bush holder in which the guide bush is fitted; and a drainage member fixed to the bush holder and having the drainage chamber formed therein; The brush member can be attached to the tool guide member by sandwiching the outer peripheral edge of the brush member between the drainage member.
In this configuration, the brush member can be easily and reliably attached to the tool guide member.

In the above-described tool guide mechanism, a flexible cylindrical bonding pad is attached to an opening edge portion on the work surface side in the through hole of the tool guide member, and the tool guide member includes the bonding pad. It can attach to the said work surface via.
In this configuration, since the space between the opening edge of the through hole and the work surface is sealed by the cylindrical bonding pad, the water tightness of the drainage chamber can be enhanced.

  In the tool guide mechanism and the deep hole drilling machine of the present invention, the direction of the drainage port can be easily changed, and the direction of the drainage port can be adjusted according to the use conditions. In addition to being applicable to work, the drain port and the water supply / drainage device can be easily connected.

It is the perspective view which showed the whole structure of the deep hole drilling machine of this embodiment. It is the side view which showed the whole structure of the deep hole drilling machine of this embodiment. It is the perspective view which showed the guide mechanism of this embodiment. It is the sectional side view which showed the guide mechanism of this embodiment. It is the disassembled perspective view which looked at the guide mechanism of this embodiment from the top. It is the disassembled perspective view which looked at the guide mechanism of this embodiment from the bottom. It is the disassembled perspective view which looked at the tool guide member of this embodiment from the bottom. It is the figure which showed the fixing method of the guide bush in the tool guide member of this embodiment, (a) is a perspective view before fixing a guide bush with a stopper, (b) is a perspective view after fixing a guide bush with a stopper. It is. It is front sectional drawing which showed the clamp member of the tool guide member of this embodiment. In the tool guide member of this embodiment, it is the perspective view which showed the rotation state of the drain outlet. It is the side view which showed the use condition of the deep hole drilling machine of this embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the present embodiment, as shown in FIG. 1, a deep hole drill 1 installed on the floor 2 in order to drill a deep hole perpendicular to the horizontal floor 2 (work surface) made of concrete. explain.
In the following description, the up / down / front / rear / left / right directions correspond to the directions shown in the drawings. Each direction is set for convenience in describing the structure of the deep hole drilling machine, and does not limit the configuration of the deep hole drilling machine.

(Overall structure of deep hole drilling machine)
As shown in FIG. 1, the deep hole drilling machine 1 includes a base 10 that is fixed to the floor 2, a support 11 that is erected on the upper surface of the base 10, and a guide member that is guided along the support 11. 12, a long rotary tool 13, a rotation drive mechanism 14 fixed to the guide member 12, an elevating mechanism 15 that moves the guide member 12 along the column 11, and a tool guide mechanism 30 that guides the rotary tool 13. And a water supply / drainage device 40 that supplies cooling water to the lower end portion of the rotary tool 13 and collects used cooling water.

(Configuration of base)
As shown in FIG. 2, the base 10 is a box-like member that is detachably fixed to the floor surface 2, and includes a lower frame 10 a having an open lower surface and an upper frame 10 b attached to the upper surface of the lower frame 10 a. And.
The entire inner surface of the lower frame 10a is covered with a flexible vacuum pad 10c. In the present embodiment, a rubber vacuum pad 10c is used, and the lower end opening edge of the vacuum pad 10c is in contact with the floor surface 2, so that the concrete floor surface 2 having irregularities on the surface can also be used. The airtightness of the internal space of the lower frame 10a is maintained.

  A suction hole 10d is formed on the upper surface of the lower frame 10a, and a suction hose 4a of the vacuum suction device 4 is connected to the suction hole 10d. And the base 10 can be made to adsorb | suck to the floor surface 2 by attracting | sucking the air in the lower frame 10a by the vacuum suction apparatus 4, and making it a vacuum state.

A fixing bolt 10e is erected on the upper surface of the lower frame 10a. The fixing bolt 10e is inserted into a long hole 10f (see FIG. 1) formed in the upper surface of the upper frame 10b. And the upper frame 10b is being fixed to the upper surface of the lower flame | frame 10a with the fixing nut 10g screwed together by the upper end part of the fixing bolt 10e.
Since the long hole 10f of the upper frame 10b extends in the left-right width direction of the deep hole drilling machine 1 as shown in FIG. 1, the upper frame 10b is moved to the lower frame with the fixing nut 10g loosened. The position of the upper frame 10b can be adjusted by moving it in the left-right width direction with respect to 10a.

(Structure of the support)
As shown in FIG. 1, the column 11 is a member having a rectangular cross section that is erected perpendicularly to the upper surface of the upper frame 10 b of the base 10. As shown in FIG. 2, the column 11 is disposed on the front surface 11 a of the column 11. A rack 11b extending in the vertical direction is attached.

(Configuration of guide member)
As shown in FIG. 1, the guide member 12 includes a frame body 12a that surrounds the outer peripheral surface of the support column 11, and an installation portion 12b that protrudes forward from the front surface of the frame body 12a. 12 a is configured to be guided in the vertical direction along the column 11.
As shown in FIG. 2, the front part of the installation part 12b is formed hollow, and a water supply chamber 12c is formed in the internal space. Note that through holes for penetrating a drive shaft 14b of the rotary drive mechanism 14 described later in the vertical direction are formed in the upper and lower surfaces of the front portion of the installation portion 12b.

(Configuration of rotating tool)
As shown in FIG. 2, the rotary tool 13 includes a long shaft portion 13 a penetrating the front portion of the installation portion 12 b of the guide member 12 in the vertical direction, and a drilling hole that is detachably attached to the lower end portion of the shaft portion 13 a. A tool 13b.
The drilling tool 13b is a tool that is detachably screwed to the lower end portion of the shaft portion 13a. For example, a tool having a bit of diamond or super hard metal can be used.
Further, the shaft portion 13a and the drilling tool 13b of the rotary tool 13 have a water supply hole 13c penetrating in the vertical direction, and the lower end portion of the water supply hole 13c is open to the outer surface of the drilling tool 13b.
Depending on the depth of the deep hole to be drilled, an extension rod can be interposed between the shaft portion 13a and the drilling tool 13b. The water supply hole penetrates in the vertical direction.

(Configuration of rotation drive mechanism)
As shown in FIG. 1, the rotation drive mechanism 14 is detachably fixed to the front portion of the installation portion 12b of the guide member 12, and includes a motor 14a and a drive shaft 14b connected to the output shaft of the motor 14a. And. In this rotational drive mechanism 14, a motor 14a is disposed above the front portion of the installation portion 12b of the guide member 12, and the drive shaft 14b is fixed in a state of being inserted through the front portion of the installation portion 12b.

As shown in FIG. 2, a water supply hole 14 c is formed in the vertical direction below the drive shaft 14 b, and the upper end of the water supply hole 14 c opens into the water supply chamber 12 c of the guide member 12.
An upper end portion of the shaft portion 13a of the rotary tool 13 is screwed to a lower end portion of the drive shaft 14b, and a water supply hole 14c of the drive shaft 14b and a water supply hole 13c of the rotary tool 13 are communicated with each other.

(Configuration of lifting mechanism)
As shown in FIG. 2, the elevating mechanism 15 includes a pinion gear 15a that is pivotally supported in a frame 12a of the guide member 12 so as to be vertically rotatable and meshes with a rack 11b that is attached to the front surface of the column 11, and a frame 12a. And a rod-like handle 15b connected to the shaft member of the pinion gear 15a that protrudes laterally from the frame body 12a.
In the elevating mechanism 15, the guide member 12 can be moved in the vertical direction along the column 11 by rotating the handle 15 b and moving the pinion gear 15 a in the vertical direction on the tooth surface of the rack 11 b.

(Configuration of tool guide mechanism)
As shown in FIG. 4, the tool guide mechanism 30 guides the vertical movement of the rotary tool 13, and rotatably supports the guide base 20 supported by the base 10 and the rotary tool 13. A guide bush 31, a tool guide member 32 having a through hole 32a into which the guide bush 31 is fitted, a guide holder 33 for attaching the tool guide member 32 to the support hole 21a of the guide base 20, and a tool guide And a bonding pad 34 attached to the lower end opening edge of the through hole 32a of the member 32.

As shown in FIG. 1, the guide base 20 is formed with a flat plate-like support portion 21 at the front, and a clamp portion that fits into a fitting protrusion 10 h formed on the front surface of the base 10 at the rear. 22 is formed.
As shown in FIGS. 5 and 6, a circular support hole 21 a passes through the support portion 21. The support hole 21a is formed in such a size that a rotation shaft portion 36b of a tool guide member 32 to be described later can be inserted.

The clamp portion 22 is a mechanism that sandwiches and holds a tenon-shaped fitting projection portion 10h formed on the base 10 (see FIG. 1) from the left and right directions, and a movable member 22a is attached to one inner side surface. Yes.
As shown in FIGS. 6 and 9, the movable member 22 a includes spring pins 22 b and 22 b that are press-fitted into two holes 22 c and 22 c formed on the inner surface of the clamp portion 22.
Further, a screw hole 22d penetrates the side wall portion of the clamp portion 22 in the left-right direction, and a screw portion 22f of a lever 22e disposed outside the clamp portion 22 is screwed, and a tip portion of the screw portion 22f is It contacts the side surface of the movable member 22a.
Therefore, by rotating the lever 22e about the axis and pushing the movable member 22a to the inside of the clamp portion 22 (left direction in FIG. 9), the fitting protrusion 10h of the base 10 (see FIG. 1) is clamped. 22 can be sandwiched.

As shown in FIG. 3, the tool guide member 32 is a cylindrical member that is disposed below the support portion 21 of the guide base 20 and is rotatably attached to the support hole 21a of the support portion 21. As shown in FIG. 5, a through hole 32a is formed at the center.
As shown in FIG. 7, the tool guide member 32 includes a bush holder 36, a drainage member 37 fixed to the lower surface of the bush holder 36, and a brush member 38 attached between the bush holder 36 and the drainage member 37. And is composed of.

Bush holder. 36, a disk-shaped mounting portion 36a, a cylindrical rotation shaft 36b protruding from the central portion of the upper surface of the mounting portion 36a, is formed, the through-holes 32a ₁ in the center It penetrates in the vertical direction.
A clip groove 36c is formed on the entire outer peripheral surface of the upper end portion of the rotation shaft portion 36b. Further, a cylindrical fitting convex portion 36d (see FIG. 4) projects from the center portion of the lower surface of the mounting portion 36a.

As shown in FIG. 7, the drainage member 37 is a cylindrical member fixed to the lower surface of the bush holder 36, and a through hole 32 a ₂ penetrates in the vertical direction in the center.
As shown in FIG. 4, the internal space of the through hole 32 a ₂ of the drainage member 37 is a drainage chamber 37 a that stores used cooling water during drilling work.
On the outer peripheral surface of the drainage member 37, a drainage port 37b communicating with the drainage chamber 37a is formed. A female screw is formed at the outer peripheral surface side in the drain port 37b, and a connecting plug 37c for connecting a drain hose 43 of a water supply / drainage device 40 (see FIG. 1), which will be described later, to the drain port 37b is screwed. Yes.

At the center of the upper surface of the drainage member 37, a circular fitting recess 37d into which the fitting projection 36d formed on the lower surface of the bush holder 36 is fitted is formed.
A circular housing recess 37e is formed at the center of the bottom surface of the fitting recess 37d. The depth of the housing recess 37e is set to the same dimension as the thickness of the annular frame 38a of the brush member 38 described later.

A cylindrical pad attachment portion 37f is projected at the center of the lower surface of the drainage member 37, and the lower end opening edge of the pad attachment portion 37f protrudes inward.
When the fitting projection 36d protruding from the lower surface of the bush holder 36 is fitted into the fitting recess 37d formed on the upper surface of the drainage member 37, the drainage member 37 is formed as shown in FIG. The two insertion holes 37h, 37h and the screw holes 36e, 36e formed in the mounting portion 36a of the bush holder 36 are in communication with each other.
Then, the two bolts 37i, 37i are respectively inserted into the insertion holes 37h, 37h from below the drainage member 37, and the bolts 37i, 37i are screwed into the screw holes 36e, 36e of the bush holder 36, whereby the bush A drainage member 37 is fixed to the lower surface of the holder 36.

  The brush member 38 has a brush 38b planted from the entire inner circumference of the annular frame 38a toward the center. As shown in FIG. 4, an opening through which the shaft 13 a of the rotary tool 13 can be inserted is formed at the center of the brush member 38, and when the shaft 13 a is inserted through the center of the brush member 38. The tip of the brush 38b is in contact with the entire circumference of the shaft portion 13a.

  The brush member 38 is housed in a housing recess 37 e formed in the drainage member 37, and the fitting projection 36 d of the bush holder 36 is in contact with the upper surface of the annular frame 38 a of the brush member 38. Thus, the annular frame 38 a of the brush member 38 is sandwiched between the bush holder 36 and the drainage member 37, so that the brush member 38 is attached to the tool guide member 32, and the tool guide member 32 penetrates. The brush 38b protrudes from the inner peripheral surface of the hole 32a toward the center.

  As shown in FIG. 6, the guide holder 33 is a cylindrical member fixed to the upper surface of the support portion 21 of the guide base 20, and a bearing hole 33 a passes through the center portion in the vertical direction. The guide holder 33 is formed with an insertion portion 33b inserted into the support hole 21a of the support portion 21 and a flange portion 33c protruding outward from the entire circumference of the upper end opening edge of the insertion portion 33b.

As shown in FIG. 5, the flange portion 33 c of the guide holder 33 has two screw holes formed on the upper surface of the support portion 21 when the guide holder 33 is attached to the upper surface of the support portion 21 of the guide base 20. Two holes 33d and 33d communicating with 21b and 21b are formed.
The screw portions 33f and 33f of the two levers 33e and 33e are respectively inserted into the hole portions 33d and 33d from above the guide holder 33, and as shown in FIG. 4, the screw portions 33f and 33f are inserted into the guide base. The guide holder 33 is fixed to the upper surface of the support portion 21 of the guide base 20 via the guide holder 33 by being screwed into the screw holes 21 b and 21 b of the support portion 21 of the base 20.

  The diameters of the holes 33d and 33d of the guide holder 33 are formed larger than the diameters of the screw portions 33f and 33f of the levers 33e and 33e, and the levers 33e and 33e are connected to the screws of the guide base 20. In the loosened state with respect to the holes 21 b and 21 b, the flange portion 33 c is movable with respect to the guide base 20 in the radial direction of the support hole 21 a. Then, after the guide holder 33 is moved and positioned in the radial direction of the support hole 21a with respect to the guide base 20, the levers 33e and 33e are fastened to the screw holes 21b and 21b of the guide base 20, thereby guiding the guide. The holder 33 can be fixed to the guide base 20.

With the guide holder 33 fixed to the upper surface of the support portion 21 of the guide base 20, the rotation shaft portion 36b of the tool guide member 32 is inserted into the bearing hole 33a from below the support portion 21, and the rotation shaft portion. The upper end portion of 36 b protrudes from the upper surface of the guide holder 33.
As shown in FIGS. 3 and 4, a C-shaped clip 39 is externally fitted in the clip groove 36c of the rotation shaft portion 36b, and the rotation shaft portion 36b is prevented from coming off from the bearing hole 33a of the guide holder 33. It is configured.

  The rotation shaft portion 36 b is supported by the support portion 21 of the guide base 20 via the guide holder 33 when the clip 39 is hooked on the upper surface of the guide holder 33, and the rotation shaft portion 36 b is supported by the guide holder 33. On the other hand, it is rotatable around the axis. Therefore, the tool guide member 32 is rotatable around the axis of the through hole 32 a with respect to the support portion 21 of the guide base 20. Further, the drainage chamber 37 a of the guide member 32 is disposed on the floor surface 2 side with respect to the support portion 21 of the guide base 20.

As shown in FIG. 7, the guide bush 31 is a cylindrical member in which a guide hole 31 a in the vertical direction passes through the center portion. The guide bush. 31, removably be freely internally fitted in the through hole 32a ₁ of the bushing holder 36 of the tool guide member 32, as shown in FIG. 4, the shaft portion 13a of the rotary tool 13 into the guide hole 31a is inserted. The guide bush 31 is positioned at the upper end portion of the through hole 32a ₁ by abutting against a positioning rib 32b projecting in the through hole 32a ₁ of the bush holder 36, and the upper surface of the guide bush 31 is a tool guide member. It is flush with the upper surface of 32.

On the upper surface of the rotary shaft portion 36b of the bushing holder 36, a stopper 35 constituting the retaining of the guide bush 31 which is fitted into the through-holes 32a ₁ is mounted.
As shown in FIG. 7, the stopper 35 is a plate-like member curved along the outer peripheral shape of the guide bush 31, and has a long hole 35 a extending in the radial direction of the guide bush 31.
The stopper 35 is fixed to the upper surface of the rotating shaft portion 36b by screwing a fixing bolt 35b inserted through the long hole 35a into a screw hole 36f formed on the upper surface of the rotating shaft portion 36b. Further, the stopper 35 can be moved in the radial direction of the guide bush 31 in a state where the fixing bolt 35 b is loosened.

When the guide bush 31 is inserted into the through hole 32a ₁ of the bush holder 36, as shown in FIG. 8A, the stopper 35 is moved outward so as not to protrude into the opening of the through hole 32a ₁ , and the guide bush 31 Is inserted into the through hole 32a ₁ from above. Then, after inserting the guide bush 31 into the through hole 32a _1, as shown in FIG. 8 (b), it moves the stopper 35 so as to protrude into the opening of the through hole 32a ₁ on the inside, in this state, fixed When the bolt 35b is tightened to fix the stopper 35 to the upper surface of the rotation shaft portion 36b, the guide bush 31 is sandwiched between the stopper 35 and the positioning rib 32b in the through hole 32a ₁ as shown in FIG. Retained.

As shown in FIGS. 5 and 6, the bonding pad 34 is a flexible cylindrical member, and can be formed using, for example, rubber or sponge. A mounting groove 34 a is formed on the outer peripheral surface of the bonding pad 34 over the entire circumference.
As shown in FIG. 4, the upper portion of the bonding pad 34 is inserted into the lower end opening of the through hole 32 a ₂ of the drainage member 37, and the lower end edge of the pad mounting portion 37 f of the drainage member 37 is formed in the mounting groove 34 a of the bonding pad 34. by fitting, bonding pads 34 are attached to the lower opening edge of the through hole 32a _2.
As shown in FIG. 2, the bonding pad 34 is a member interposed between the tool guide member 32 and the floor surface 2 when the deep hole drilling machine 1 is installed on the floor surface 2. The lower end opening of the through hole 32 a (32 a ₂ ) of the member 32 is joined to the floor surface 2 via the joining pad 34.

(Configuration of water supply / drainage system)
As shown in FIG. 2, the water supply / drainage device 40 supplies cooling water from the device main body 41 to the water supply chamber 12 c of the guide member 12 through the water supply hose 42 and to the drainage chamber 37 a (see FIG. 4) of the tool guide member 32. The apparatus main body 41 collects the stored used cooling water through the drainage hose 43, and the used cooling water is filtered inside the apparatus main body 41, whereby the cooling water is repeatedly used.
The water supply hose 42 communicates with a water supply chamber 12 c formed in the installation portion 12 b of the guide member 12, and the drainage hose 43 is formed in the tool guide member 32 via a connection plug 37 c of the tool guide member 32. To the drainage chamber 37a.

(Drilling method using deep hole drilling machine)
Next, a procedure for making a deep hole perpendicular to the horizontal floor 2 using the deep hole drill 1 of the present embodiment will be described.
First, as shown in FIG. 2, the base 10 is placed on the floor surface 2, and the inside of the lower frame 10 a is evacuated by the vacuum suction device 4, so that the base 10 is adsorbed to the floor surface 2.

  When positioning the deep hole position on the floor surface 2, a rod-like hollow sleeve with a sharp tip is attached to the lower end of the drive shaft 14 b of the rotary drive mechanism 14, and the guide member 12 is lowered along the column 11. Thus, the operator can visually determine the drilling position by bringing the tip of the hollow sleeve into contact with the floor surface 2. Then, after loosening the fixing nut 10 g of the base 10 and finely adjusting the position of the frame 10 b, the guide base 20 is attached to the base 10.

  When the guide base 20 is attached to the base 10, the levers 33 e and 33 e inserted into the holes 33 d and 33 d of the guide holder 33 shown in FIG. 4 are connected to the screw holes 21 b and 21 b of the guide base 20. In the loosened state, the hollow sleeve is inserted through the through hole 32a of the tool guide member 32 attached to the guide base 20. As a result, the guide holder 33 is guided by the hollow sleeve and moves in the radial direction of the support hole 21a, and the axial center position of the hollow sleeve and the center position of the through hole 32a of the tool guide member 32 are arranged concentrically. In this state, the levers 33 e and 33 e are fastened to the screw holes 21 b and 21 b of the guide base 20 to fix the guide holder 33 to the support portion 21 of the guide base 20. When the rotary tool 13 is attached to the rotary drive mechanism 14 (see FIG. 2) instead of the hollow sleeve, the axial center position of the rotary tool 13 and the center position of the through hole 32a of the tool guide member 32 are arranged in a concentric position. Is done.

  After the guide base 20 is attached to the base 10 in this way, the tool guide member 32 is rotated around the axis of the through hole 32a with respect to the support portion 21 of the guide base 20 as shown in FIG. The direction of the drainage port 37b is adjusted in consideration of the routing of the drainage hose 43 that connects the drainage port 37b and the water supply / drainage device 40 (see FIG. 2).

As shown in FIG. 2, after fixing the base 10 to the floor surface 2, the motor 14 a of the rotational drive mechanism 14 is driven, and while rotating the shaft portion 13 a and the drilling tool 13 b of the rotary tool 13 around the axis, By lowering the guide member 12 along the column 11, a deep hole is made in the floor surface 2 by the drilling tool 13 b attached to the lower end portion of the rotary tool 13.
The shaft portion 13a of the rotary tool 13 is rotatably supported by the guide bush 31 of the tool guide member 32, and the rotary tool 13 can be stably moved in the vertical direction, so that it is perpendicular to the floor surface 2. Deep holes can be accurately drilled.

  In addition, the rotary tool 13 can drill a deep hole with a diameter of about 7 to 20 (7 to 15) mm, for example, and when the hole depth exceeds 100 cm, the shaft portion 13a and the drilling tool An extension rod is interposed between the cable 13b and 13b. In the deep hole drilling machine 1 of the present embodiment, since the rotary tool 13 is guided by the tool guide member 32, even if the hole depth exceeds 100 cm, the rotary tool 13 can be prevented from swinging. This is effective when digging a hole depth of 10 times or more with respect to the hole diameter formed by the drilling tool 13b, and is most effective when it is 50 times or more.

Further, at the time of drilling work, cooling water is supplied from the water supply / drainage device 40 into the water supply chamber 12 c of the guide member 12. The cooling water stored in the water supply chamber 12c is supplied from the water supply hole 14c formed in the drive shaft 14b to the drilling tool 13b through the water supply hole 13c of the rotary tool 13, and is discharged from the drilling tool 13b to the inside of the deep hole. Is done.
The cooling water supplied to the deep hole flows out from the opening of the deep hole and is stored in the drainage chamber 37a (see FIG. 4) of the tool guide member 32 installed on the floor surface 2.
In addition, the used cooling water stored in the drainage chamber 37a is collected from the drainage port 37b (see FIG. 4) through the drainage hose 43 to the apparatus main body 41, and the cooling water is filtered inside the apparatus main body 41. Later, the water is supplied again to the water supply chamber 12 c of the guide member 12.

(Functional effects of tool guide mechanism and deep hole drilling machine)
In the tool guide mechanism 30 and the deep hole drilling machine 1 of the present embodiment, as shown in FIG. 10, the tool guide member 32 is rotated around the axis of the through hole 32 a with respect to the guide base 20, thereby providing a tool guide. The direction of the drain port 37b formed in the outer peripheral surface of the member 32 can be changed easily, and the direction of the drain port 37b can be adjusted according to use conditions.
For example, when the deep hole drilling machine 1 is installed on the floor 2 as in the usage pattern A shown in FIG. 11, the drainage hose 43 that connects the drainage port 37b and the water supply / drainage device 40 (see FIG. 1) is routed. In consideration of the above, the direction of the drain outlet 37b can be adjusted.
In addition, when the deep hole drilling machine 1B is installed on the wall surface 3 as in the usage pattern B shown in FIG. 11, the cooling water in the tool guide member 32 is directed to the drainage port 37b by directing the drainage port 37b downward. Can be reliably discharged.

Further, in the present embodiment, as shown in FIG. 4, the rotation shaft portion 36 b protruding from the tool guide member 32 is inserted into the support hole 21 a formed in the guide base 20, and the tool guide member Since 32 can be rotated with a simple structure, the manufacturing cost of the deep hole drill 1 can be reduced.
Further, since the guide holder 33 can be moved in the radial direction of the support hole 21 with respect to the guide base 20, the position of the tool guide member 32 can be easily finely adjusted according to the axial center position of the rotary tool 13. can do.

  In the present embodiment, the brush 38b of the brush member 38 attached to the tool guide member 32 is in contact with the outer peripheral surface of the rotary tool 13, so that the vibration generated in the rotary tool 13 during the drilling operation causes the inside of the drain chamber 37a. Even when the cooling water is transmitted upward on the outer peripheral surface of the rotary tool 13, the cooling water is blocked by the brush 38 b, so that the cooling water can be prevented from being scattered outside the tool guide member 32.

  In the present embodiment, as shown in FIGS. 4 and 7, the annular frame 38 a of the brush member 38 is sandwiched between the bush holder 36 and the drainage member 37, so that the brush member 38 becomes a tool guide member. Therefore, the brush member 38 can be easily and reliably attached to the tool guide member 32.

  Further, in the present embodiment, as shown in FIGS. 2 and 4, the tool guide member 32 is attached to the floor surface 2 via a bonding pad 34 attached to the lower end opening edge of the through hole 32 a of the tool guide member 32. Since the space between the lower end opening edge of the through hole 32a and the floor surface 2 is sealed by the bonding pad 34, the water tightness of the drain chamber 37a can be improved.

(Other embodiments)
The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
For example, in this embodiment, as shown in FIG. 4, the tool guide member 32 is attached by attaching a C-shaped clip 39 to the upper end portion of the rotating shaft portion 36 b inserted through the support hole 21 a of the guide base 20. Although it is rotatably attached to the guide base 20, the configuration for attaching the tool guide member 32 to the guide base 20 is not limited, and a bearing or various joints can be used.

Further, in the brush member 38 of the present embodiment, as shown in FIG. 7, the brush 38b is planted from the entire inner surface of the annular frame 38a toward the center, but from one side to the inner surface of the annular frame 38a. The brush may be planted toward the center, the brush may be implanted from the other side toward the center, and the rotary tool 13 may be sandwiched between the two-direction brushes.
Further, the configuration for attaching the brush member 38 to the tool guide member 32 is not limited. When the brush member 38 is not sandwiched between the bush holder 36 and the drainage member 37, the tool guide member 32 need not be divided into the bush holder 36 and the drainage member 37.

  Further, in the deep hole drilling machine 1 of the present embodiment, as shown in FIG. 2, the base 10 is adsorbed to the floor surface 2 by making the inside of the lower frame 10 a vacuum by the vacuum suction device 4. The configuration for fixing the base body 10 to the floor surface 2 or the wall surface is not limited. For example, the base 10 can be fixed to the floor 2 or the wall by attaching the upper frame 10b to an anchor bolt installed on the floor 2 or the wall without using the lower frame 10a.

DESCRIPTION OF SYMBOLS 1 Deep hole drilling machine 2 Floor surface 4 Vacuum suction apparatus 10 Base 10a Lower frame 10b Upper frame 11 Support | pillar 12 Guide member 12c Water supply chamber 13 Rotary tool 13a Shaft part 13b Drilling tool 13c Water supply hole 14 Rotation drive mechanism 14a Motor 14b Drive Shaft 14c Water supply hole 15 Elevating mechanism 20 Guide base 21 Support part 21a Support hole 22 Clamp part 22a Movable member 30 Tool guide mechanism 31 Guide bush 31a Guide hole 32 Tool guide member 32a Through hole 33 Guide holder 34 Bonding pad 35 Stopper 36 Bush Holder 36a Mounting portion 36b Rotating shaft portion 36c Clip groove 37 Drainage member 37a Drainage chamber 37b Drainage port 37c Connection plug 38 Brush member 38a Annular frame 38b Brush 39 Clip 40 Water supply / drainage device 41 Device book 42 water supply hose 43 drainage hose

Claims (7)

A tool guide mechanism used in a deep hole drilling machine for drilling deep holes in a work surface with a long rotating tool,
A guide base supported by a base of the deep hole drilling machine;
A tool guide member that has a through hole into which a guide bush that rotatably supports the rotary tool is fitted, and that guides the rotary tool;
The tool guide member is attached to the guide base in a state of being rotatable about the axis of the through hole,
In the through hole of the tool guide member, a drainage chamber for storing cooling water discharged from the tip of the rotary tool is formed on the working surface side of the guide bush.
A tool guide mechanism, wherein a drainage port communicating with the drainage chamber is formed on an outer peripheral surface of the tool guide member. The drainage chamber of the tool guide member is disposed on the work surface side with respect to the guide base,
The tool guide mechanism according to claim 1, wherein a rotation shaft portion protruding from the tool guide member is inserted through a support hole formed in the guide base. The tool guide member is attached to the guide base via a guide holder,
The guide holder includes a cylindrical insertion portion that is inserted into the support hole, and a flange portion that protrudes outward from the insertion portion,
The flange portion is attached to the guide base so as to be movable in a radial direction of the support hole, and the rotating shaft portion of the guide member is inserted into the insertion portion. The tool guide mechanism according to 2.   The brush member, in which a brush protrudes from an inner surface of the through hole toward a central portion, is attached to the tool guide member, and the brush is in contact with an outer peripheral surface of the rotary tool. The tool guide mechanism according to any one of claims 1 to 3. The tool guide member is
A bush holder in which the guide bush is fitted;
A drainage member fixed to the bush holder and having the drainage chamber formed thereon,
The tool according to claim 4, wherein the brush member is attached to the tool guide member by sandwiching an outer peripheral edge portion of the brush member between the bush holder and the drainage member. Guide mechanism. In the through hole of the tool guide member, a flexible cylindrical bonding pad is attached to the opening edge on the work surface side,
The tool guide mechanism according to any one of claims 1 to 5, wherein the tool guide member is attached to the work surface via the bonding pad. The base fixed detachably to the work surface made of concrete;
A column erected on the base;
A guide member guided along the column;
The long rotating tool with a drilling tool attached to the tip; and
A rotational drive mechanism attached to the guide member and configured to rotationally drive the rotary tool;
An elevating mechanism for moving the guide member along the support;
A deep hole drilling machine comprising the tool guide mechanism according to any one of claims 1 to 6.

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