GB2483645A

GB2483645A - Drill positioning device with cooling chamber

Info

Publication number: GB2483645A
Application number: GB1015272.6A
Authority: GB
Inventors: He Johnson
Original assignee: HANGZHOU XIAOSHAN JOHNSON TOOLS CO Ltd
Current assignee: HANGZHOU XIAOSHAN JOHNSON TOOLS CO Ltd
Priority date: 2010-09-14
Filing date: 2010-09-14
Publication date: 2012-03-21
Also published as: GB201015272D0

Abstract

A drill positioning device comprises a base 30 with a groove 31 to insert and limit a drilling tool, a fixing assembly disposed on the base 30 to fix the base 30 to a work piece (50, Fig 6), and a pad 35 mounted on a bottom end of the base 30 for abutting the work piece (50) and including a receiving chamber 351 corresponding to the groove 31 of the base 30. The receiving chamber 351 may include a channel 352 for into which a fluid pipe may be inserted. The groove 31 of the base 30 may include a limiting structure to adjust a suitable limiting range corresponding to an outer diameter of the drilling tool. Limiting structure may include an adjusting plate 32 with guiding slots 323, and base 30 may include two screw elements 301, 33 that are inserted into the guiding slots 323, the screw elements 301, 33 being used to adjust the limiting structure. The fixing assembly may comprise suckers 34. In use, the receiving chamber 351 is full of fluid for cooling the drilling tool.

Description

POSITIONING DEVICE FOR A DRILL TOOL

BACKGROUND OF THE JNVENTION

Field of the InventIon

The present invention relates to a positioning device for a drill tool that is capable of cooling the drilling tool quickly and preventing the cool fluid and clips from splash, thus prolonging a service life of the drilling tool.

A conventional circular drilling tool is used to drill hard stone materials, such as glasses, tiles, marbles, granite, etc, howevei such a circular drilling tool I 0 is positioned difficultly and broken quickly because of a high heat general:ed during a drilling process to lower its service life.

Referring to Fig. I, an improved positioning device for a drilling tool is disclosed in TW Pub. No. 487029 and includes a base I U having a first element with a first groove Ill and a second element 12 with a second groove 12; the base 10 includes a sucker i 01 disposed on a bottom end thereof to attach the base on a workpiece 20, and the first groove 111 of the first element 11 extends out of the base 10, the first element 11 includes two locking blocks 112 mounted on two sides thereof respectively to screw with the second element 12, the second element 12 includes two guiding slots 122 fixed on two sides thereof to fit the locking blocks 112 individually so that the second element 12 displaces along the locking blocks 112 by ways of the guiding slots 122, each locking block 112 includes a screw element 113 to screw with the second element 12, such that between the first groove 1 11 of the first element ii and the second groove 121 of the second element 12 is defined a limiting space 12 to limit a drilling tool 21, hence during a drilling process, the drilling tool 21 is limited by the limiting space 13 to drill a hole on the wo.rkpiece 20, but such an improved positioning device still has the flowing disadvantages: 1. During the drilling process, a cool fluid is sprayed toward a desired drilling position and the drilling tool 21 so as to cool the drilling tool 21, but when the drilling tool 21 rotates, it can riot contact with the cool fluid completely, causing a poor cooling effect to lower a service life of the drilling tool.

2. In addition, when the drill ing tool rotates quickly during the drilling process, the cool fluid and clips splashes everywhere.

The present invention has arisen to mitigate and/or obviate the aforedescribed disadvantages.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a positioning device for a drill tool that a cool fluid is fed into the receiving chamber of the pad and the drilling tool. inserted in. the limiting range is driven to have the drilling process so that during the drilling process, the pad sulTounds the drilling tool and the desired drilling position on the workpiece, the receiving chamber of the pad is fun of cool fluid to cool the drilling tool quickly and. to prevent the cool fluid and clips from splash, thus prolonging a service life of the drilling tool and having drilling process conveniently.

Another object of the present invention is to provide a positioning device for a drill tool that a fluid pipe is inserted into the channel of the base so that the cool fluid is fed through the fluid pipe, and the drilling tool inserted n the limiting range is driven to have the drilling process. During the drilling process, the pad surrounds the drilling tool and the desired driiiin.g position on the workpiece, and the fluid pipe is inserted to contact with the workpiece, therefore the cool fluid flows downward along the workpiece to cool the drilling tool quickly and to prevent the cool fluid and clips from splash. thus prolonging a service life of the drilling tool and having drilling process conveniently.

A positioning device for a drill tool according to the present invention contains: a base including a groove to insert and limit the drilling tool; a fixing assembly disposed on the base so that the base is fixed on a a pad mounted on a bottom end of the base so that its bottom end abuts against the workpicce tightly an.d including a receiving chamber mounted therein to correspond to the groove of the base.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. I is a perspective view of a conventional positioning device for a drifi tool of TW Pub. it. 487029; Fig. 2 is a perspective view showing the exploded components of a positioning device for a drill tool according to a preferred embodiment of the present invention; Fig. 3 is a perspective view showing the assembly of the positioning device for the drill tool according to the referred embodiment of the present invention; Fig. 4 is a cross sectional view showing the assembly of the positioning device for the drill tool according to the preferred embodiment of the present invention; Fig. 5 is a perspective view showing the operation of the positioning device for the drill tool according to the preferred embodiment of the present invention; Fig. 6 is another perspective view showing the. operation of the positioning device for the drill tool according to the preferred embodiment of the present invention; Fig. 7 is another perspective view showing the operation of the positioning device for the drill tool according to the preferred embodiment of the present invention; Fig. 8 is a cross sectional view taken along the line AA of Fig. 7; Fig. 9 is also another perspective view showing the operation of the positioning device for the drill tool according to the preferred embodiment of the present invention; Fig. 10 is another perspective view showing the operation of the positioning device for the drill tool according to the preferred embodiment of the *1 present invention; Fig. 11 is a cross sectional view taken along the line B-B of Fig 10.

DI1AILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to Figs. 2-4, a positioning device for a drill tool according to a preferred embodiment of the present invention comprises a base 30 including a groove 31, and the groove 31 including a V-shaped first peripheral side 311 mounted on one side thereof; a V-shaped second peripheral side opposite to the first peripheral side 311 fixed on another side thereof; and a limiting structure formed therein to adjust a suitable limiting range to match with an outer diameter of the drilling tool so as to further insert and limit the drilling tool; wherein the limiting structure includes an adjusting plate 32 secured on the groove 31 of the base 30 and is capable of being fixed at a suitable position, the adjusting plate 32 includes a V-shaped first defining rim 321 opposite to the first peripheral side 311 of the groove 31 disposed on one side thereof and a V-shaped second defining rim 322 opposite to the second peripheral side 312 of the groove 31 mounted on another side thereof, and the base 30 includes two screw elements 301 extending from two sides of the groove 31 thereof respectively, the adjusting plate 32 includes two guiding slots 323 arranged on two sides thereof to insert the two screw element 301 individually, and each screw element 301 includes a rotary knob 33 screwed thereon so that the first and the second defining rims 321, 322 of the adjusting plate 32 displace along the screw elements 301 by using the guiding slots 323 and screw with the rotary knobs 33, such that between the first defining rim 321 of the adjusting plate 32 and the first peripheral side 311 of the groove 31 or between the second defining rim 322 of the adjusting plate 32 arid the second peripheral side 312 of the groove 31 is formed the suitable limiting range to match with the outer diameter of the drilling tool so as to further limit the drilling tooL and the first defining rim 321 or the second defining rim 322 includes a scale 324 arranged thereon to see a moving distance so as to further adjust the suitable limiting range matching with the outer diameter of the drilling tool. The base 30 also includes a fixing assembly arranged on an end portion thereof to position the base 30 on a workpiece 50, wherein the fixing assembly includes two suckers 34, and each sucker 34 includes a lever 341 connected thereon so as to control the sucker 34 to attach on the workpiece 50; the base 30 further includes a pad 35 disposed on a bottom end thereof and made of foam or plastic material to matingly contact with the workpiece 50, the pad 35 includes a receiving chamber 351 mounted therein to correspond to the groove 31 of the base 30, and the receiving chamber 351 includes a channel 352 fixed on one side thereof 1 communicate with a top end of the base 30 and to insert a fluid pipe.

As shown in Fig. 5, when a drilling tool 40 is forced vertically (eg, the workpiece 50 is placed on a horizontal surface) in a drilling process, the adjusting plate 32 of the limiting structure is moved to a suitable position based on the outer diameter of the drilling tool 40, and then the rotary knob 33 is locked, the first defining rim 321 of the adjusting plate 32 and the first peripheral side 311 of the groove 31 are used to form the iimiti.ng range suitable for the outer diameter of the drilling tool 40. Referring to Fig. 6, the base 30 is placed on the workpiece 50, and the limiting range fonned by the first defining rim 321 of the adjusting plate 32 and the first peripheral side 311 of the groove 31 is aligned with a desired drilling position, the lever 341 of the fixing assembly is further rotated so that the sucker 34 attaches on the workpiece 50 and a bottom end of the pad 35 abuts against the workpiece tightly, then the base 30 is fixed on the workpiece 50.

With reference to Figs. 7 and 8, after the base 30 is fixed, a cool fluid 41 is fed into the receiving chamber 351 of the pad 35, and the drilling tool 40 inserted in the limiting range is driven to have the drilling process. During the drilling process, the pad 35 surrounds the drilling tool 40 and the desired drilling position on the workpiece 50, the receiving chamber 351 of the pad 35 is full of cool fluid 41 to cool the drilling tool 40 quickly and to prevent the cool fluid and clips from splash, thus prolonging a service life of the drilling tool and having drilling process conveniently.

Referring to Fig. 9, when the drilling tool 40 is forced horizontally (e.g., another workpiece 60 is fixed on a vertical surface) in the drilling process, the first defining rim 321 of the adjusting plate 32 and the first peripheral side 311 of the groove 31 are used to form the limiting range suitable for the outer diameter of the drilling tool 40, and the limiting range formed by the first defining rim 321 of the adjusting plate 32 and the first peripheral side 311 of the groove 31 is aligned with another desired drilling position, then the sucker 34 is used to attach the base 30 on the workpiece 60. With reference to Figs. 10 and 11, after the base is fixed, a fluid pipe 42 is inserted into the channel 352 of the base 30 so that the cool fluid 411s fed through the fluid pipe 42, arid the drilling tool 40 inserted in the limiting range is driven to have the drilling process. During the drilling process, the pad 35 surrounds the drilling tool 40 and the desired drilling position on the workpiece 60, and the fluid pipe 42 is inserted to contact with the workpiece 60 therefore the cool fluid 41 flows downward along the workpiece to cool the drilling tool 40 quickly and to prevent the cool fluid and clips from splash, thus prolonging a service life of the drilling tool and having drilling process conveniently.

While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from th.e scope of the present invention,