JPH0720208U - H-shaped steel drilling device - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the drilling work of H-section steel and improve the drilling accuracy. [Structure] The electric drill 1 is movable in the front-rear direction and in the left-right direction with respect to a fixed plate 17 by a front-rear direction movable platen 15 movable in the front-rear direction and a left-right direction movable platen 16 movable in the left-right direction. The front-back direction moving plate 15 is patterned in the front-back direction by the front-back direction template 6, and the left-right direction moving plate 16 is patterned in the left-right direction by the left-right direction template 7. The fixed plate 17 is provided with a fixing metal fitting 11, which is detachably fixed to the H-shaped steel.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for drilling H-shaped steel for construction using an electric drill.

 In steel-framed construction, columns are erected on a foundation and columns are connected by beams. The method of connection is to fix both columns and beams with several bolts. Therefore, it is necessary to drill holes on both ends of the beam to allow multiple bolts to pass through. The holes must be clear at the same pitch to fit both columns and beams.

 Conventionally, this drilling work uses a ruler or the like to draw a single line and hit a center punch, and the drill core is aligned with the punch to perform the drilling work. Generally, the electric drill is fixed with a magnet. In order to use a magnet stand type electric drill, turn off the magnet once, shift the heavy electric drill to the dent of the small center punch, turn the magnet on again at the aligned position, fix it to the H-shaped steel and make a hole. The work to be performed requires a long time and requires a lot of labor and skill.

 The present invention was devised to eliminate the drawbacks, and the mechanism of the present invention has two moving plates that move lightly on the X-axis / Y-axis, that is, vertical / horizontal, and the center of the drill on the multiple holes. It is provided with a template (guidance board) for guiding and fixing hardware for fixing the apparatus body to the H-shaped steel.

 The structure will be described with reference to the drawings. (10) The fixing handle is turned, (11) the fixing tool is operated, and (13) the flat portion of the H-section steel is sandwiched to fix the device to the H-section steel. Fix the electric drill on (15) the front-rear moving platen. (15) Front-back direction A guide roller is attached to the lower surface of the moving platen. Underneath it, place a (16) left-right moving plate, and fix the front-rear rail between the guide rollers on the plate. That is, the electric drill moves lightly only in the front-rear direction along the front-rear rail by using the guide roller as a guide together with the front-rear moving plate (15). Furthermore, using the exact same principle as above, the left and right rails are fixed on the fixed plate (17), and the guide rollers (16) attached to the lower side of the (16) left and right moving plate slide and move slightly left and right. It is a structure.

 Therefore, the electric drill can be moved back and forth and left and right with a light force. The drill is attached to the drill chuck of the electric drill, and the drill up / down handle is moved to perform drilling work. There are several patterns for the number of holes and the hole pitch (distance between holes). The template for the front-back direction and the template for the left-right direction according to the pattern are attached to the ends of the (16) left-right moving plate and (17) fixed plate, respectively. Attach the ball plungers for the front-rear direction to the front-rear moving plate at (15) at the locations on the template, and the ball plunger for the left-right direction at (16) the left-right moving plate. Ball plungers are generally commercially available.A steel ball is constantly pressed by a spring in the direction of pushing it out, but if a stronger force than that spring is applied, the spring pressure is applied. It is applied to an object pushing a steel ball as it is, and using its characteristics, (15) When the front-rear moving platen is moved, the steel of the front-rear direction ball plunger is inserted into the hole exposed in the front-rear direction template. The ball enters and the position is fixed by the pressure of the spring, so drill at that position. After drilling at that position, move the front-rear moving plate (15) again and drop the front-rear ball plunger into the next hole to perform the same work. Drilling in the left-right direction is performed in the same way.

That is, the electric drill can be moved in the front-rear direction and the left-right direction with a light force to open the holes of a predetermined pattern at a uniform pitch. Next, (11) fixing metal fittings for fixing this device to the H-shaped steel are attached under (17) fixing plate. (10) Fixing By turning the handle, (11) fixing metal fittings hold down (13) H-shaped steel to fix the entire device. There are large and small H-shaped steel sizes according to the standard, but you can loosen the adjusting bolts according to the size and move the fixing brackets according to the size according to the size.

Further, the handle 12 is used when carrying and moving this device.

 With the above structure, even inexperienced or inexperienced workers can work with accurate hole pitch without variation.

 In addition, the conventional scribing work for deciding the hole position and the troublesome and precise work of punching the center punch are no longer required, and the work can be performed in a short time.

[Brief description of drawings]

FIG. 1 is a front view of the present invention. FIG. 2 is a plan view of the present invention. FIG. 3 is a side view of the present invention. Is an electric drill is a drill chuck is a front-rear rail is a left-right rail A guide roller is a front-rear template is a left-right template is a front-rear ball plunger is a left-right ball plunger ▲ 10 ▼ is a fixed handle ▲ 11 ▼ Is a fixed metal fitting ▲ 12 ▼ is a handle ▲ 13 ▼ is an H-shaped steel ▲ 14 ▼ is a drill up / down handle ▲ 15 ▼ is a front-rear moving board ▲ 16 ▼ is a left-right moving board ▲ 17 ▼ is a fixed board ▲ 18 ▼ is a guide Roller ▲ 19 ▼ is an adjustment bolt

Claims (1)

[Scope of utility model registration request] As shown in the drawing, an H-shaped steel drilling device that combines a vertical plate and two horizontal plates that have rails and guide rollers attached, a hole guide plate, and an electric drill.