JP3714672B2 - Levels and drilling methods for portable drills and taps - Google Patents

Description

The present invention relates to a portable drill and tapping level and a drilling method in the field of drilling and tapping .

  In order to attach or assemble a member, drilling or tapping with a portable electric drill is widely performed. When drilling or tapping the work material, the power drill is held so that the drill is perpendicular to the work surface, but the operator holds the power drill by visual inspection or intuition. A drill was applied to the processed surface for drilling and tapping.

  Therefore, as a result of conducting a prior patent search on the above technique, Japanese Patent Laid-Open No. 8-215910, Japanese Patent Laid-Open No. 2000-337875, Japanese Utility Model Laid-Open No. 60-120708, and the like were searched.

In JP-A-8-215910, JP-A-2000-337875, and Japanese Utility Model Application Laid-Open No. 60-120708, a level is attached to the drill body and the level is adjusted in the vertical and horizontal directions of the drill. It has been proposed that the angle of inclination is variable and the hole is made perpendicular to the surface to be processed. In any of these, the level can be adjusted in two dimensions with respect to the inclined surface of the work surface, and the applicant has developed a level in which the level can be variably set in three dimensions.
JP-A-8-215910 JP 2000-337875 A Japanese Utility Model Publication No. 60-120708

  However, when these materials are used, the holes can be opened more accurately than when the level is not used, but the verticality of the surface to be processed varies. As a result of investigating the cause, the operator was looking at the level from a slightly oblique direction rather than the vertical direction at the time of opening. Also, it was not easy and accurate.

  The problem to be solved by the present invention is, for example, when opening a hole using a spirit level, it is not easy to set the spirit level, and the bubble position can be confirmed even slightly obliquely from the vertical direction of the spirit level. There is a variation in the opening accuracy and the like.

The present invention has been made in view of the above points, and in order to solve the above-described problems, the spirit level is reduced in size or thickness and attached to a portable drill through the mounting base of the spirit level. A level for portable drills and taps that drills or taps at a right angle to the surface to be processed so that the bubble position in the liquid of the bubble holding part of the main body is located in the center, At the center of the side part, attach a level support shaft at a right angle to the side surface, and attach a spherical material to the tip of the level support shaft. A hook-shaped shaft support is projected on both sides of the end, and a pinching material with a spherical seat on the inner surface is screwed inwardly on the inside of both sides, and the above-mentioned level between the pinching materials Hold the spherical material protruding from the side of the container body via the spherical seats inside the clamping material on both sides One of the screws is tightened by tightening or loosening a screw to form a level body that can be tilted in a three-dimensional manner. 3 so that the drill or tap of the portable drill can be easily and accurately opposed to the work surface with the above-described level that is formed so as to be detachable from the drill chuck. The object of the present invention is to provide a portable drill and a tap level characterized by combining a level spirit level and a right angle centering tool .

  In addition, in order to confirm the position of the bubble in the liquid of the bubble holding part of the level body, a cylinder having an inner diameter of 5 to 10 mm and a height or depth of 5 to 10 mm so as to accurately see the position of the bubble at the center. Another object of the present invention is to provide a spirit level for a portable drill, characterized in that a sight-like or hollow viewing portion is disposed in a bubble holding portion of a spirit level body.

Furthermore, the level is made small and thin and attached to a portable drill via the leveling base, so that the bubble position in the liquid in the bubble holding part of the level body is positioned at the center. A drilling method using a portable drill or tapping level that drills and taps at right angles to the machined surface, and is leveled in the direction perpendicular to the side surface at the center of the side of the leveler body. Attach the leveler support shaft, attach the spherical material to the tip of the leveler support shaft, and project hook-type shaft support parts on both sides of the leveler body side end of the leveler mount. On the inside of both sides, a clamping member having a spherical seat on the inner surface is screwed inwardly so that it can be tightened inward, and the spherical material protruding from the side of the level body is sandwiched between the clamping members. Clamp it via the spherical seat inside the clamping material, and tighten one of the clamping materials by tightening the loosening screw. Then, attach the spirit level body that can be tilted three-dimensionally to the portable drill, and drill the right angle axis of the right angle centering tool that makes contact with the work surface at right angles. Bubbles in the liquid in the bubble holder of the leveler body by inserting the chuck into the chuck, abutting the right-angled centering tool on the work surface, and tilting the above-described three-dimensionally tiltable level Set the position so that it is located in the center, take out the right-angled centering tool from the drill chuck of the portable drill, insert the predetermined drill or tap, and carry the portable drill on the drilled part or the work surface of the tap part To provide a drilling method for a portable drill or tap, wherein the drill or tap is drilled by confirming the horizontal state of the spirit level body of the above level with the drill or tap facing is there.

The present invention is a portable drill or tapping level that performs drilling and tapping processing at a right angle to the surface to be processed so that the bubble position in the liquid of the bubble holding part of the level body is located at the center. The level support shaft is attached to the center of the side of the level body in the direction perpendicular to the side surface, and a spherical material is attached to the tip of the level support shaft. A hook-shaped shaft support is projected on both sides of the end on the level level body side, and a clamping material with a spherical seat on the inner surface is screwed inside the both sides so that it can be tightened inward. Hold the spherical material projecting on the side of the level body in between via the spherical seats inside the clamping material on both sides, and tighten one of the clamping materials by tightening the tightening screw by the tilting freely formed in three dimensions the level body, the spherical member projecting from the side of the level body on both sides thereof The leveling body can be tilted by clamping one of the clamping materials through the spherical seat on the inner side of the holding material and tightening the loosening screw. Or it can be tilted around the vertical axis and can be swiveled in three dimensions for easy use.

In addition, a level in which a perpendicular axis of a right-angled centering tool that is in contact with the surface to be machined at right angles is formed so as to be detachable from a drill chuck of a portable drill, and is tiltably attached in the above-described three dimensions. By combining a three-dimensional level and a right-angle centering tool so that the drill or tap of a portable drill can be easily and accurately opposed to the work surface at a right angle, the right-angle centering tool is brought into contact with the work surface. If the right angle axis of the right angle centering tool is inserted into the drill body drill chuck, the drill body can be easily centered at right angles to the surface to be machined. By removing the right-angle centering tool and inserting the necessary drills and taps, it can be processed with higher accuracy than before.
Therefore, even if the work surface is any inclined surface or curved surface, the portable drill can be easily and accurately opposed to the work surface at a right angle, and can be tilted or easily perpendicular to the curved work surface. Accuracy can be improved, and drilling and tapping can be performed with high accuracy.

  In addition, in order to confirm the position of the bubble in the liquid of the bubble holding part of the level body, a cylinder having an inner diameter of 5 to 10 mm and a height or depth of 5 to 10 mm so that the position of the bubble can be accurately seen from directly above the center. If the bubble in the bubble holding part of the spirit level is located near the cylindrical or hollow see-through part, the bubble position can be accurately determined. Therefore, the vertical accuracy can be increased easily and inexpensively.

Furthermore, a right-angled centering tool is brought into contact with the surface to be processed, and the above-described three-dimensional tilting attached level is tilted so that the bubble position in the liquid of the bubble holding portion of the leveling device main body is at the center. Set the position so that it is positioned, remove the right-angled centering tool from the drill chuck of the portable drill, insert the specified drill or tap, and place the drill or tap of the portable drill on the work surface of the drilled part or tap part. Oppositely, the level of the spirit level body of the above-mentioned spirit level is confirmed, and drilling of drills and taps is performed to make it easy and accurate regardless of the inclined surface or curved surface. The portable drill can be opposed to the surface to be machined at right angles, and it can be tilted, and the accuracy of the perpendicularity can be easily increased with respect to the curved surface to be drilled. it can.

The portable drill and tap level of the present invention, and the drilling method, the bubble level of the spirit level body is attached to the portable drill through the mounting base of the level as a small or thin level A level for a portable drill that drills or taps at a right angle to the surface to be processed so that the bubble in the liquid is positioned at the center, and the side of the level at the center of the side of the level body A level support shaft is attached at right angles to the level, and a spherical material is attached to the tip of the level support shaft. A pinching part with a spherical seat on the inside surface is screwed into the inner side of both sides so that it can be tightened inward, and between the pinching parts, it protrudes from the side of the level body The spherical material is clamped via the spherical seats inside the clamping material on both sides, and one of the clamping materials is tightened By tightening and tightening, the leveling body is formed to be tiltable in three dimensions, and the perpendicular axis of the right-angled centering tool that makes contact with the work surface at right angles is used as the drill chuck for portable drills. Formed so that it can be inserted and removed freely, and with the above-mentioned level that can be tilted in a three-dimensional manner, the drill and tap of a portable drill can be easily and accurately positioned at right angles to the work surface. It is characterized by a combination of centering tools .

  As shown in FIGS. 1 (a) and 1 (b), the spirit level 1 is provided in the bubble holding part 3 of the spirit level body 2 with 5 to 5 so that drilling and tapping can be easily and accurately performed at right angles to the surface to be processed. A cover sheet 4 such as a 10 mm-thick plastic sheet or a transparent tempered glass sheet is coated, and a peeping part 5 having an inner diameter of 5 to 10 mm and a height or depth of 5 to 10 mm is disposed in the center thereof. The position of the bubble cannot be accurately confirmed if the bubble in one bubble holding portion 3 is not located near the cylindrical or hollow peeping portion 5.

  If the inner diameter of the sight portion 5 is 5 mm or less, it is difficult to see bubbles, and if it is 10 mm or more, the accuracy is not good, and if the height or depth is shallower than 5 mm, the accuracy is not so good, and if it is higher or deeper than 10 mm Although accuracy is improved, it is not preferable because it is difficult to see.

  The spirit level body 2 is preferably thin and small, and can be applied to a plastic container or the like that is available in the market, such as a one-piece low-cost one in which air bubbles are contained, and a portable electric drill 6 In order to attach to and use, it is preferable that the level 1 is detachably attached via a joint means 7 of a universal joint so as to be tiltable in three dimensions.

  As this joint means 7, for example, as shown in FIGS. 1A and 1B, hook-shaped shaft support portions 9 are provided at both ends of the mounting base 8, and the clamping member 10 can be tightened inward on both sides thereof. A spherical material 12 that is screwed and attached to the tip of a level support shaft 11 that is axially attached to the center of the side of the spirit level body 2 between the clamping materials 10 is a side surface of the clamping material 12 described above. The leveling device 1 can be a universal joint that can be tilted in three dimensions by tightening or loosening the fastening screw 13. Reference numeral 14 denotes a countersunk screw for screwing the holding member 10 on the other side of the fastening screw 13.

  Then, the mounting base 8 of the joint means 7 is attached / detached to / from an appropriate position on the side surface of the drill body 16 of the portable electric drill 6 as shown in FIG. 2 by attaching / detaching means 15 such as a velvet fastener, a magnet body, and a double-sided adhesive tape. It can be attached as possible, and drilling and tapping can be performed at right angles to the work surface.

  Also, as shown in FIGS. 3 and 4, a right-angle centering tool 18 is inserted into the drill chuck 17 of the drill body 16 so that the drill body 16 can be accurately positioned perpendicular to the work surface. At the same time, the level 1 is tilted to the horizontal state via the joint means 7 described above, the bubble is positioned in the center of the bubble holding portion 3, the right-angle centering tool 18 is replaced, and the drill body 16 is objectively processed. Can be processed at right angles to the surface.

  As the right-angled centering tool 18, as shown in FIGS. 3A and 3B, a right-angle shaft 21 is vertically screwed at the center of a leg member 20 having an appropriate length of 50 to 80 mm that can be assembled in an orthogonal shape. By attaching the right-angle shaft 21 to the drill chuck 17 as shown in FIG. 4, the drill body 16 can be opposed to the surface to be processed at right angles as described above.

  The right-angle centering tool 18 is preferably assembled in a right-angle shape in this way because it is convenient for transportation and storage. However, the right-angle centering tool 18 can be used in a cross shape, a cup shape, a pyramid shape, an arc shape, or other surfaces to be processed. Thus, a suitable modification can be obtained.

  Moreover, as the peeping part 5 of the level 1, the plastic sheet 4 of 5 to 10 mm is recessed as shown in FIGS. 5 (a) and 5 (b), or as shown in FIGS. 6 (a) and 6 (b). It is preferable to use a cylindrical shape and to cover the surface with the magnifying lens 22 as shown in FIG.

  In addition, the level 1 of the present invention is preferably attached to a portable electric drill that can be used by tilting in three dimensions or two dimensions as described above.

  1 and 2 show an embodiment of the present invention. The level 1 of the present invention is detachably attached to a side surface of a drill body 16 of a small portable drill 6 as shown in FIG. 2 by means of a velvet fastener attachment / detachment means 15 via a joint means 7 of a universal joint. Therefore, drilling and tapping can be performed easily and accurately at a right angle.

  As shown in FIGS. 1 (a) and 1 (b), the level 1 is provided with hook-shaped shaft support portions 9 on both sides of the mounting base 8, and the clamping member 10 is screwed inside the both sides so as to be freely tightened. The spherical member 12 attached to the tip of the level support shaft 11 which is pivotally attached to the center of the side of the leveler body 2 between the holding members 10 at the right angle is the spherical seat on the side of the holding member 12 described above. The level 1 is tilted in three dimensions by tightening and loosening one tightening screw 13 on one side of the shaft support 9.

  The level 1 has a slightly colored plastic cover sheet 4 having a thickness of 6 mm on the bubble holder 3 of the level 2 so that it can be drilled and tapped at right angles to the surface to be processed easily and accurately. Is provided in the central portion with a 5 mm inner diameter and 5 mm depth viewing portion 5, and the bubbles in the bubble holding portion 3 of the spirit level 1 are removed as shown in FIG. The bubble position can be accurately confirmed from A immediately above A.

  The spirit level body 2 is preferably thin and small, and an inexpensive one-piece molded plastic container or the like that is available in the market can be applied.

  In particular, in the universal joint 7 shown in FIGS. 1 (a) and 1 (b), the spherical member 12 is sandwiched by the sandwiching member 10, so that the level 1 is placed horizontally by the tightening operation of one tightening screw 13. It can be swiveled around an axis and / or a vertical axis and is easy to use.

  In addition, by providing a hollow viewing portion 5 having a depth of 5 mm and an inner diameter of 5 mm in the central portion of the bubble holding portion 3 of the level body 2, the leveling portion of the leveling portion 5 can be properly connected as described above. The accuracy of the verticality can be easily and inexpensively checked by accurately confirming the bubble position from above.

  Further, as shown in FIG. 4, when the right angle shaft 21 of the right angle centering tool 18 is inserted into the drill chuck 17 of the drill body 16 and the right angle centering tool 18 is brought into contact with the work surface, the drill body 16 can be easily covered. The machined surface can be centered at a right angle, and the level 1 is adjusted to be horizontal as described above, and the right-angled centering tool 18 is removed, and a necessary drill or tap is inserted to make it more conventional. It can be processed with high accuracy. In addition, it can cope with making the leg material 20 of the right-angled centering tool 18 into a circular arc shape, and opening a cylindrical pipe.

  Thus, since the level 1 can be tilted in three dimensions, the drill body 16 can be easily opposed to the inclined surface at right angles regardless of the inclined surface or curved surface to be drilled and tapped. In addition, the level can be easily attached to the electric drill by a simple attaching / detaching means of a velvet fastener or a magnet, and can be processed accurately.

In particular, by inserting a right-angle centering tool into the drill chuck, the drill body can be positioned easily and accurately at right angles to the work surface. Tapping can be performed.

A plan view (a) and a side view (b) of a level of one embodiment of the present invention, Side view with attached to the drill Plan view (a) and exploded view (b) of the right-angled centering tool same as above. Side view of an embodiment using the same right angle centering tool as above, A plan view (a) and a side view (b) of another embodiment of the level of the above, A plan view (a) and a side view (b) of still another embodiment of the level of the above, The side view of the Example of the further another spirit level same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Level level 2 ... Level level body 3 ... Bubble holding part 4 ... Cover sheet 5 ... Viewing part 6 ... Portable drill 16 ... Drill body 22 ... Magnifying lens

Claims (3)

Make the spirit level small or thin and attach it to a portable drill through the leveling base. Make sure that the air bubble position in the air bubble holding part of the spirit level is located in the center of the surface. A portable drill or tapping level that drills and taps at right angles,
A level support shaft is attached to the center of the level of the above level in the direction perpendicular to the side surface, and a spherical material is attached to the tip of the level support shaft. A hook-shaped shaft support is projected on both sides of the end of the device body side, and a clamping material with a spherical seat on the inner surface is screwed inwardly on the inside of both sides. The spherical material projecting from the side of the level body is sandwiched between the spherical seats inside the sandwiching material on both sides, and one of the sandwiching materials is tightened by tightening the tightening screw. The container body is tilted in three dimensions,
In the above-mentioned level, the orthogonal right axis of the right-angled centering tool designed to come into contact with the surface to be machined can be inserted into and removed from the drill chuck of the portable drill and can be tilted in three dimensions. A portable drill and tap level that combines a three-dimensional level and a right-angle centering tool so that the drill and tap of the portable drill can be easily and accurately opposed to the work surface at a right angle. In order to confirm the position of the bubble in the liquid of the bubble holding part of the spirit level body, a cylindrical shape having an inner diameter of 5 to 10 mm and a height or depth of 5 to 10 mm so that the position of the bubble at the center is accurately seen from directly above or 2. The portable drill or tap level according to claim 1, wherein the hollow peeping portion is disposed in the bubble holding portion of the level body. Make the spirit level small or thin and attach it to a portable drill through the leveling base. Make sure that the air bubble position in the air bubble holding part of the spirit level is located in the center of the surface. It is a drilling method using a portable drill that taps and taps at right angles and a level for tapping,
A level support shaft is attached to the center of the level of the above level in the direction perpendicular to the side surface, and a spherical material is attached to the tip of the level support shaft. A hook-shaped shaft support is projected on both sides of the end of the device body side, and a clamping material with a spherical seat on the inner surface is screwed inwardly on the inside of both sides. The spherical material projecting from the side of the level body is sandwiched between the spherical seats inside the sandwiching material on both sides, and one of the sandwiching materials is tightened by tightening the tightening screw. Attach a spirit level that can be tilted in three dimensions to a portable drill or tap,
Insert the right-angled axis of the right-angle centering tool that makes contact with the work surface at a right angle into the drill chuck of a portable drill or lip, and contact the right-angle centering tool with the work surface. Set the bubble level in the liquid in the bubble holding part of the leveling unit to be located in the center by tilting the level attached to tilt in three dimensions,
Take out the right-angle centering tool from the portable drill or the tap chuck of the tap, insert the specified drill or tap, and place the portable drill or tap drill or tap against the work surface of the hole or tap. A drilling method for portable drills and taps, wherein the drilling and tapping holes are drilled by checking the horizontal state of the leveling device main body.

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