JP2897009B1 - Box rectangularity measuring instrument and how to use it - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide an instrument which can easily and efficiently measure a rectangular angle of a rectangular parallelepiped, and to disclose a method of using the instrument. A horizontal ruler 1 is provided with a guide rod 3 protruding inward in the longitudinal direction with a hook 3a at the tip and protruding with a handle 3b at the other end.
a, and the vertical ruler 1b is attached to the outside of the guide ruler 3 of the horizontal ruler 1 on the handle side in the width direction so as to be perpendicular to the horizontal ruler 1a in a protruding state of a fixed width.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectangular parallelepiped square angle measuring tool used in machine tool processing and a method of using the same.

[0002]

2. Description of the Related Art As a ruler for cutting and grinding a work into a rectangular parallelepiped as in the manufacture of a mold, an L-shaped square ruler (square) is successively brought into contact with a work to eliminate a gap with the square ruler. This is performed by performing a grinding process as described above.

[0003]

When machining a workpiece, when the work is light and relatively small, there is not much problem, but the work is relatively large and heavy, but it is often used for squareness measurement. It takes time and effort. The present invention has been made to solve the above problems.

[0004]

According to the present invention, there is provided a horizontal ruler comprising a guide rod which protrudes into a longitudinal direction thereof with a hook at a tip thereof and has a handle at the other end thereof and which can be pulled. The vertical ruler is attached to the outside of the horizontal ruler in the width direction on the handle side of the guide rod so as to be orthogonal to the horizontal ruler so as to protrude with a constant width. At this time, one end of the length direction of the horizontal ruler is formed into an L-shaped key piece in plan view, and the vertical ruler is locked via the key piece. A plurality of screw holes are engraved, screw bolts are screwed into the screw holes from the back side of the horizontal ruler, and it can be detached at any height position, and the screw holes are inclined at a fixed angle. By this, the vertical ruler is tightly attached to the L-shaped key piece of the horizontal ruler without any gap by the tightening.

When the work is tightened and fixed between the bases of the machine vise, the work is swung in the horizontal direction between the lower surface of the work and the base of the machine vise. Providing a supporting member to be acceptable, while holding the three-dimensional workpiece in the machine vise mouthpiece in this state, placing the horizontal ruler of the rectangular parallelepiped squareness measuring tool on the upper surface of the contact side mouthpiece of the three-dimensional workpiece, In addition to contacting the length side of the horizontal ruler with the side surface of the three-dimensional workpiece, the hook of the guide rod protruding toward the tip of the horizontal ruler abuts the front side of the three-dimensional workpiece, and Hold the handle and pull the handle side surface of the three-dimensional workpiece close to the side end of the vertical ruler that protrudes outward in the width direction of the horizontal ruler, and tighten the pressing side base of the machine vice under the close contact condition To fix the three-dimensional workpiece. In this state, when the top surface of the three-dimensional workpiece is cut or ground, the three-dimensional workpiece is clamped and fixed between the machine vise bases in a genuine horizontal state orthogonal to the vertical plane.

[0006]

FIG. 1 is an overall perspective view of a rectangular parallelepiped angle measuring instrument 1 according to the present invention, which comprises a horizontal ruler 1a and a vertical ruler 1b as shown in the illustrated example. Here, the horizontal ruler 1a is provided with a guide groove 2 on the inner surface, and a guide rod 3 having a hook claw 3a at the tip is movably provided. The hook 3a protrudes from the tip of the horizontal ruler 1a by a predetermined length, and the handle 3b at the other end projects to the other end of the horizontal ruler 1a opposite to the above.

On the other hand, the vertical ruler 1b is attached to the end of the horizontal ruler 1a where the handle side of the guide rod 3 is located so as to extend to the outside in the width direction and orthogonal to the horizontal ruler. An L-shaped key piece 4 is formed on the ruler 1a in a plan view, and the ruler 1a is brought into contact with the key piece 4 and fixed.

At this time, a solid ruler 1b is used for the fastening.
In the length direction, a plurality of screw holes 5 are formed at equal intervals, and at least two of the screw holes 5 are fastened to the horizontal ruler 1a from the side of the horizontal ruler 1a using screw bolts 6. . In order for the vertical ruler 1b to abut on the inner surface of the L-shaped key piece 4 without any gap by the fixing, the screw hole 5 is formed as an oblique hole inclined at a predetermined angle. In tightening the vertical ruler 6, the vertical ruler 1b can be pulled toward the right angled inside of the L-shaped key piece 4 as much as possible so that there is no gap, and the vertical ruler 1b has two faces sandwiching the right angle. Thus, the screw bolt 6 can be fixed stably and exactly, and the screw bolt 6 does not loosen.

FIG. 2 shows a state in which the above-mentioned measuring tool is used to cut or grind the work 7 into a rectangular hexahedral mold product. The work 7 is initially a base of a machine vise 8. The base is set to a state where it is slightly lifted from the base 8c via the support member 9 onto the base 8c between the bases 8a and 8b, and in this state, the base 8c can swing with a small force in the left-right direction. Temporarily tighten between 8a and 8b.

In the above state, the bottom side of the horizontal ruler 1a of the rectangular parallelepiped angle measuring instrument 1 is fixed to the fixed side base 8a of the machine vise 8.
While being placed on the upper surface, the hook 3a of the guide rod 3 protruding toward the distal end is brought into contact with the side surface m of the work 7,
The grip 3b of the guide rod 3 is gripped by hand and pulled toward the user's hand in the manner of using the finger and thumb when measuring the caliper. This opposes the side surface m of the workpiece 7 which is in contact with the hook 3a. The opposite side n is brought into contact with the side p of the three-dimensional ruler 1b protruding from the side of the horizontal ruler 1a, and the work 7 is slightly lifted up via the support member 9 at this time. Even with a weak force pulling the handle 3b toward the hand, the handle 3b can be easily swung in the left-right direction and properly brought into contact with the side surface p of the vertical ruler 1b.

Next, when the work 7 is completely brought into contact with the side surface p of the vertical ruler 1b as described above, the machine vise 8
Move the pressing side base 8b of the
Is firmly pinched and fixed. Then
In the above fixed state, the upper surface k of the work 7 is ground or cut by a grinding machine or a milling machine. When this is completed, the work 7 is rolled so that the surface to be cut or ground next becomes the upper surface. Do it. At this time, the hexagonal processing of the rectangular parallelepiped is performed six times by plane processing, but the present apparatus may be used at the beginning and the fifth time.

[0012]

The present invention is constructed as described above. In the measuring instrument of the present invention, the horizontal ruler 1a and the vertical ruler 1b are in a T-shaped relationship, and the vertical ruler 1b is the horizontal ruler 1.
a, the one side of the work 7 is brought into contact with the vertical ruler 1b while the horizontal ruler 1a is mounted on the upper surface of the machine vise base. Then, the ground surface of the work 7 is cut or ground in a proper horizontal plane perpendicular to the vertical plane, and the work 7 is extremely easily machined into a proper rectangular hexahedron by the same operation. Becomes possible. Also, while using the measuring tool with only the left hand (one hand),
At the same time, the machine vise can be operated with the right hand (opposite hand), which contributes to quick and efficient work.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a rectangular parallelepiped square angle measuring instrument according to the present invention.

FIG. 2 is a diagram showing a use state of the measuring tool.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 cuboid perpendicularity measuring instrument 1a horizontal ruler 1b vertical ruler 2 guide groove 3 guide rod 3a pulling claw 3b handle 4 key piece 5 screw hole 6 screw bolt 7 work 8 machine vise 8a, 8b

Claims (5)

(57) [Claims] 1. A horizontal ruler provided with a guide rod protruding into a longitudinal direction thereof with a hook at its tip and having a handle at the other end and capable of being pulled, and said guide of said horizontal ruler. A rectangular parallelepiped square angle measuring instrument characterized in that a vertical ruler is mounted in a protruding state with a fixed width in a state of being perpendicular to a horizontal ruler in a state of being orthogonal to a horizontal ruler in a width direction outside of a handle side of a rod. 2. One end of the horizontal ruler in the length direction is L in plan view.
2. A rectangular parallelepiped square angle measuring device according to claim 1, wherein the vertical ruler is locked through the key piece. 3. A plurality of screw holes are engraved in the height direction of the vertical ruler, screw bolts are screwed into the screw holes from the rear side of the horizontal ruler, and are detachably mounted at appropriate height positions. The rectangular parallelepiped square angle measuring device according to claim 2, characterized in that: 4. The rectangular parallelepiped square angle measuring instrument according to claim 3, wherein the screw hole is formed as an inclined screw hole, and a horizontal ruler is attached to the inside angle of the L-shaped key piece when tightening the bolt. . 5. A support member is provided for slightly lifting the three-dimensional workpiece from the machine vise base and allowing the rectangular parallelepiped workpiece to swing in the left-right direction. In this state, the three-dimensional workpiece is held between the machine vise bases. The horizontal ruler of the rectangular parallelepiped square measuring instrument according to claim 1 is placed on the upper surface of the contact side base of the three-dimensional workpiece, and the lengthwise side surface of the horizontal ruler and the side surface of the three-dimensional workpiece are abutted. In addition, the hook of the guide rod protruding from the tip of the horizontal ruler is brought into contact with the front side of the three-dimensional workpiece, and the handle of the three-dimensional workpiece is gripped by the handle of the guide rod and the width side of the horizontal ruler. A rectangular parallelepiped formed by pulling the vertical ruler that protrudes outside so as to be in close contact with the side end of the vertical ruler, and tightening the pressing side base of the machine vise in the close contact state to fix the three-dimensional workpiece How to use squareness measuring tool.