CN103042246B - Electric hand drill stand - Google Patents

Abstract

The invention provides a hand-held electric drill stand, which includes a base, on which a cylinder is fixedly arranged, a cross bar is rotatably connected to the end of the cylinder, and a guide rod is movably arranged at the lower end of the cross bar. An electric drill fixing frame for fixing the electric drill is slidably arranged on the guide rod, and strip-shaped holes are evenly arranged radially on the base with the cylinder as the center. The invention can quickly and efficiently punch centered and uniformly distributed through holes on the workpiece to be punched, and has simple structure and low implementation cost.

Description

Handheld electric drill stand

technical field

The invention relates to a supporting device of an electric drill.

Background technique

An electric drill refers to a drilling tool that uses electricity as power. It is a conventional product in electric tools, and it is also the most demanded electric tool product. Electric drills are generally divided into hand drills, impact drills and hammer drills. Usually, when working manually, the use of electric hand drills is often used in small-scale drilling operations on parts.

In some special cases, if it is necessary to use a hand-held electric drill to drill flange holes on the workpiece, that is, to center evenly distributed through holes. The general method is to use a measuring tool to mark the position that needs to be punched on the workpiece, and then use a hand-held electric drill to drill the marked position. In this way, the efficiency is low and the method of manually measuring the punching position is prone to errors, so that the punching position cannot meet the requirements.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a shelf that enables a hand-held electric drill to drill centered and evenly distributed through holes on a workpiece.

The present invention is achieved through the following technical solutions: the hand-held electric drill stand includes a base, a cylinder is fixedly arranged on the base, a cross bar is rotatably connected to the end of the cylinder, and the lower end of the cross bar is movable There is a guide rod on which an electric drill fixing frame for fixing the electric drill is slidably arranged, and strip holes are evenly arranged radially on the base with the cylinder as the center.

In the above technical solution, the base is slidably provided with a sleeve sliding along the direction of the bar-shaped hole.

In the above technical solution, a spring is arranged in the sleeve.

Compared with the prior art, the present invention has the following beneficial effects: It can quickly and efficiently punch centered and uniformly distributed through-holes on workpieces that need to be punched, and has a simple structure and low implementation cost.

Description of drawings

Fig. 1 is the structural representation of the present invention.

Fig. 2 is a schematic top view of the base of the present invention.

Fig. 3 is a structural schematic diagram of the electric drill of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: Referring to FIGS. A cross bar 20 is rotatably connected to the top of the cross bar 20. A guide rod 3 is movably provided at the lower end of the cross bar 20. An electric drill holder 4 for fixing the electric drill is slidably arranged on the guide rod 3. When in use, the hand-held electric drill is fixed on the On the electric drill fixing frame 4, the base 1 is uniformly arranged with six strip holes 10 in a radial shape with the cylinder 2 as the center, that is, the angle a between adjacent strip holes 10 is 45 degrees, and of course the number of strip holes It can also be other numbers, which can be properly adjusted as required.

The base 1 is slidably provided with a sleeve 5 that slides along the direction of the strip hole 10, and a spring 50 is arranged in the sleeve 5. When drilling, the drill bit compresses the upper end surface of the sleeve 5 through the sleeve 5 so that the spring 50 was compressed, and when the punching was completed, the compressed spring 50 gave the drill body a force along the pull-out direction to facilitate the extraction of the drill body.

When it is necessary to drill flange holes on the workpiece, first place the base 1 on the workpiece so that the center of the cylinder 2 on the base 1 is aligned with the center of the workpiece, and then adjust the position of the sleeve 5 so that all the sleeves 5 are aligned with the cylinder 2 Centers are at the same distance (this distance is the distance we need), then turn the crossbar 20 and slide the guide rod 3 at the same time, so that the position of the hand-held electric drill bit is aligned with the position of the sleeve 5, and after alignment, press down the hand-held electric drill to perform Drilling, after punching a hole, continue to punch holes according to the above steps until all the holes are punched.

Referring to FIG. 3 , the electric drill 7 includes a handle 73 , a battery 72 is installed at one end of the handle 73 , and a motor 75 for driving a drill bit is arranged inside the electric drill 7 , and the motor 75 includes an output shaft 750 .

It also includes a pipe body 78, which is filled with cooling water. The pipe body 78 surrounds the motor 75 and forms a closed circuit in the electric drill 7. A magnetic force is provided inside the pipe body 78 near the output shaft 750. Transmission wheel 74, the side of the output shaft 750 close to the magnetic transmission wheel 74 is fixed with a permanent magnet 77. When the electric drill is in use, the rotation of the motor output shaft 750 drives the rotation of the permanent magnet 77, and the magnetic transmission is driven by a magnetic transmission mode. The rotation of the wheel 74 enables the cooling water in the pipe body 78 to circulate.

The electric drill 7 is provided with a water storage tank 76 for storing cooling water, more cooling water is set in the water storage tank 76, and the water storage tank 76 communicates with the pipe body 78, so that it can have sufficient cooling Water is used to absorb the heat generated by the battery during the operation of the electric drill, which ensures that the cooling water absorbs too much heat and loses its effect after the electric drill runs for a long time.

The water storage tank 76 is provided with a through hole 760, and the shell of the electric drill 7 corresponding to the position of the through hole 760 can be disassembled. A screw cap 761 is screwed on the through hole 760. During the long-term use of the electric drill, if If it is necessary to add or replace cooling water in the pipe body 78, it is only necessary to disassemble the shell of the electric drill 7 corresponding to the position of the through hole 760, unscrew the screw cap 761, and add or pour out the cooling water in the through hole 760.

Claims (3)

1. Electric hand drill stand, it is characterized in that: comprise base (1), described base (1) is fixedly installed cylinder (2), cross bar (20) is rotatably connected in described cylinder (2) end, guide rod (3) is movably set with in described cross bar (20) lower end, the electric drill fixed mount (4) of electric drill (7) is fixed with in the upper slip setting of described guide rod (3), described base (1) radially evenly arranges bar hole (10) centered by cylinder (2), described electric drill (7) comprises handle (73), in one end of described handle (73), battery (72) is housed, there is the motor (75) driving drill bit in described electric drill (71), described motor (75) comprises output shaft (750), also comprise body (78), cooling water is full of in described body (78), described body (78) is around motor (75) and in described electric drill (7) middle formation closed-loop path, body (78) is provided with magnetic drives wheel (74) near described output shaft (750) inside, position, described output shaft (750) is fixedly installed permanent magnet (77) near the side of described magnetic drives wheel (74).

2. Electric hand drill stand as claimed in claim 1, is characterized in that: the upper slip of described base (1) is provided with the sleeve (5) slided along bar hole (10) direction.

3. Electric hand drill stand as claimed in claim 2, is characterized in that: arrange spring (50) in sleeve (5).