KR101565914B1

KR101565914B1 - Bending apparatus of hexagon wrench

Info

Publication number: KR101565914B1
Application number: KR1020150057016A
Authority: KR
Inventors: 박현두
Original assignee: 박현두
Priority date: 2015-04-23
Filing date: 2015-04-23
Publication date: 2015-11-04

Abstract

The present invention relates to a bending apparatus for a hexagon wrench. According to the present invention, the bending apparatus for a hexagon wrench comprises: a fixing member to which a wound base metal is flattened and supplied; a moving member disposed in front of the fixing member to cut the base metal while moving in one direction, and move in an other direction to bend the cut base metal; a bending jig disposed on a front surface of the moving member on which a bending surface is formed to bend on the base metal; and a fixed body which comes in contact with an end of the base metal protruding from the bending jig, and then presses an end of the base metal to bend an end of the base metal when the moving member moves in the other direction. According to the present invention, a single apparatus cuts and bends the base metal sequentially to reduce a process time and a number of processes by moving the base metal in one direction to cut the base metal in a prescribed length, and then moving the base metal in other directions to bend the end of the cut base metal.

Description

[0001] The present invention relates to a bending apparatus of a hexagon wrench,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hexagonal wrench bending device, and more particularly, to a bending device for bending a base material made of a hexagonal wire material to manufacture a hexagonal wrench.

In general, various apparatuses and mechanical equipments are composed of respective parts, and the joining methods thereof include joining by means of welding, detachment using a variety of accessories such as screws, bolts, nuts, and pins. It is divided into cases.

Particularly, a hexagonal hole having a predetermined depth is formed at the center of the head of the bolt so that the hexagonal hole can be joined to or separated from the object by the hexagonal wrench.

The process of manufacturing a typical hexagonal wrench includes a step of heating a prepared round bar, a step of forming a hexagonal bar by passing the heated round bar through a rolling roller having a hexagonal shape requiring a cross section, and a step of cutting the hexagonal bar to a predetermined length A step of performing end-face processing after the cutting process, a step of bending processing in the case of the L shape, a step of heat-treating to increase the surface hardness, and a step of surface-treating.

A technique related to such a hexagonal wrench has been proposed in Registration Practical Utility Model No. 0257228 and Registration Practical Utility Model No. 0360275.

Hereinafter, the forged hexagonal wrench and the hexagonal wrench disclosed in the Registration Practical Utility Model No. 0257228 and the Registration Practical Utility Model No. 0360275 as the prior art will be briefly described.

Fig. 1 is a perspective view of a forged hexagon wrench in a registered utility model No. 0257228 (hereinafter referred to as "Prior Art 1").

As shown in FIG. 1, the forged hexagonal wrench of the prior art 1 has a hexagonal tip at the ends of the section and the long section. The steel round bar having the tensile force is divided into the first section and the second section, To form a handle, and the ends of the round bar 1 and the long bar 2 are forged to form a forging hexagonal tip 3.

However, the forged hexagonal wrench according to the prior art 1 has a problem that the process of cutting the steel round bar and the process of bending into the inter-stage (1) and the long-distance (2) .

Fig. 2 is a perspective view showing a hexagonal wrench separated from a registration model A-0360275 (hereinafter referred to as "Prior Art 2").

As shown in FIG. 2, the hexagonal wrench of the prior art 2 is a hexagonal wrench, which comprises a base wrench 10 having a fixing hole 11 in the body; One end of the base wrench 10 is fitted to one end of the base wrench 10 and the other end of the base wrench 10 has a hexagonal small diameter 21 which is the same as the outer diameter of the base wrench 10, A length extending portion 20 having a plurality of holes 12 coinciding with the lengths of the holes 12; Having a diameter equal to the outer diameter of the small diameter (21) and the base wrench (10) of the length extension part (20) so as to be inserted into one end of the length extension part (20) and the base wrench And wrenches (14, 15).

However, in the hexagonal wrench according to the prior art 2, since the cutting and bending processes are individually performed to manufacture the base wrench 10 as in the prior art 1, there is a problem that the number of processes and the time required are increased.

Korean Registered Utility Model No. 0257228 Korean Utility Model Registration No. 0360275

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a method of cutting a base material by cutting a base material by a predetermined length and bending an end of the base material, It is an object of the present invention to provide a hexagonal wrench bending device capable of reducing the process time and the number of processes by cutting and bending.

In order to achieve the above object, the present invention provides a fixing device comprising: a fixing member to which a rolled base material is fed while being spread; A moving member disposed in front of the fixing member and cutting the base material while moving in one direction and moving in the other direction for bending the cut base material; A bending jig provided on a front surface of the moving member and having a bent surface for bending the base material; And a fixing body for bending the end portion of the base material protruded from the bending jig when the moving member is moved to the other side in a process of being pressed after being contacted.

In addition, the fixture may be formed in a cylindrical shape.

And a separating rod for pushing and discharging the bent base material when the base material is bent is moved forward and backward by the second driving unit.

Meanwhile, the bending jig may be provided to be replaceable according to the size of the base material.

Further, a first roller group for spreading the base material supplied to the fixing member from the left and right, and a second roller group for vertically spreading the base material.

According to the present invention, since the base material is moved in one direction to cut the base material by the set length, and the base material is moved in the other direction to bend the cut ends of the base material, the cutting and bending of the base material are successively performed by one configuration, The time and the number of processes are reduced.

1 is a perspective view of a forged hexagonal wrench according to prior art 1;
FIG. 2 is a perspective view showing a hexagonal wrench according to the prior art 2 separated. FIG.
3 is a perspective view showing a hexagonal wrench bending apparatus according to the present invention.
4 to 7 are schematic views illustrating a process of bending a base material in a state where the hexagonal wrench bending apparatus according to the present invention is provided in the hexagonal wrench manufacturing apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

FIG. 3 is a perspective view of a hexagonal wrench bending apparatus according to the present invention, and FIGS. 4 to 7 illustrate a hexagonal wrench bending apparatus according to an embodiment of the present invention, FIG. 3 is a schematic view showing a process of bending a base material in a state where it is provided in a manufacturing apparatus.

The hexagonal wrench bending apparatus 100 according to the present invention includes a fixing member 110, a moving member 120, a bending jig 130, a first driving unit 140, a fixing unit 150, a separation module 160, . Here, a hexagonal wire rod or the like is used as the base material of the hexagonal wrench.

The fixing member 110 is a block arranged in a transverse direction, and a rod passing hole 112 and a rear base material through hole 114 formed on the reference left side of FIG. At this time, the rod passing hole 112 is a passage through which the separation rod 164 of the separation module 160 moves back and forth, and the rear base material through hole 114 is a passage through which the base material is moved .

The moving member 120 is a block in the lateral direction disposed in front of the fixing member 110, and a reference front base material through-hole 122 is formed through the reference left side of FIG.

At this time, the front base material through-hole 122 is moved in one direction toward the first driving unit 140 so as to be positioned on the same line as the rear base material through-hole 114 of the fixing member 110 when the base material is supplied, When the base material is separated, it is moved in the other direction toward the fixed body 150 so as to be positioned on the same line as the rod passing hole 112.

That is, the moving member 120 is disposed in front of the fixing member 110 and moves in one direction to cut the base material by the shearing force, and in the process of moving in the other direction, And the cut base material is bent while the end portion is collided and pressed.

When the movable member 120 moves in one direction and cuts the base material at a point between the base material and the fixing member 110, the rear end or rear base material through hole 114 of the front base material through hole 122, A cutter (not shown in the drawing) may be provided at a portion opposed to the through hole 122.

The bending jig 130 is provided on the front surface of the moving member 130 so that the through hole formed at the center thereof communicates with the front base material through hole 122 of the moving member 120, .

At this time, the bending jig 130 can be replaced by a plurality of through holes having different sizes according to the size of the base material.

The first driving part 140 is provided on one side wall of the moving member 120 and the front base material through hole 122 of the moving member 120 is fixed to the rear base material through hole 114 or the rod-passing hole 112 of the movable member 120. As shown in FIG.

At this time, the first driving unit 140 may be an air cylinder, for example.

The fixing body 150 is disposed in front of the bending jig 130 and is bent in the process of pressing the end of the base material protruded from the bending jig 130 when the moving member 130 moves in the other direction .

Meanwhile, the fixing body 150 is formed in a cylindrical shape or the like.

The separating module 160 includes a second driving part 162 and a separating rod 164 to push and separate the base material to and from the take-out line 18 upon completion of bending of the base material.

The second driving part 162 is disposed in the same line as the rod passing hole 112 of the fixing member 110 to provide power to move the separating rod 164 back and forth. For example, an air cylinder or the like is attached to the second driving part 162.

The separating rod 164 is connected to the rod end of the second driving part 162 and moves forward and back along the inside of the rod passing hole 112 formed in the fixing member 110, To the front of the bending base material.

The controller is capable of controlling and setting the rotational speed of the pulling member 16 of the hexagonal wrench manufacturing apparatus 10, the operating state and the operating speed of the first driving unit 140 and the second driving unit 162, and the like.

Therefore, the procedure for bending the base material by the hexagonal wrench bending apparatus 100 according to the present invention is as follows.

First, the wound base material is pulled by the pulling member 16 and supplied to the rear base material through-hole 114 of the fixing member 110, so that the front base material through-hole 122 of the moving member 120 and the through- So as to protrude forward by the set length.

Next, the first driving unit 140 is driven to move the moving member 120 toward the first driving unit 140, and the moving member 120 generates a shearing force to move the fixing member 110 and the moving member 120 The base material is cut between the members (120).

Next, when the first driving part 140 is driven to move the moving member 120 in the direction of the fixing body 150, the end of the base material is brought into close contact with the outer peripheral surface of the fixing body 150, Is bent by pressure.

Next, the first driving unit 140 is further driven to align the center of the base material with the bent end portion and the center of the separation rod 164 of the separation module 160 provided on the fixing member 110. [

The second driving unit 162 is driven to push the separation rod 164 connected to the rod forward to push the base material bent in the front base material through hole 122 of the moving member 120 forward, ).

The hexagonal wrench manufacturing apparatus 10 to which the hexagonal wrench bending apparatus 100 of the present invention is applied includes a first roller group 12, a second roller group 14, a pull member 16, .

The first roller group 12 functions to stretch the left and right portions of the base material while passing between the plurality of first rollers 12a arranged in a horizontally shifted state.

The second roller group 14 functions to stretch the upper and lower portions of the base material while passing between the plurality of second rollers 14a arranged to be shifted in the vertical direction with respect to the left and right portions.

The pulling member 16 is disposed in the form of a pair of upper and lower discs and is rotated in a symmetrical direction. The pulling member 16 pulls the base material, which is stretched with respect to the left and right and upper and lower portions by frictional force, to move to the rear base material through- Through the front base material through-hole 122 of the member 120, and is exposed to the bending jig 130 for a predetermined distance.

The take-out line 18 is disposed in front of the separation module 160 so that the folded base material is discharged into the specific space while being discharged by driving the separation module 160.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.

100: Allen wrench bending device
110: Fixing member
112: rod through hole
114: rear base material passing hole
120: moving member
122: front base material through hole
130: Bending jig
140:
150:
160: Separation module

Claims

A fixing member having a rear base material through hole formed therein so as to supply the base material;
The front base material through-hole is disposed in front of the fixing member in a state where the front base material through-hole is formed so as to allow the base material to pass therethrough and is moved in one direction so that the front base material through- A moving member moving in the other direction to bend the cut base material;
A bending jig provided on a front surface of a moving member in front of the front substrate pass hole and having a bent surface for bending the base material; And
And a fixing body for bending the end portion of the base material protruded from the bending jig in a process of being pressed after the movable member is moved in the other direction.

The method according to claim 1,
Wherein the fixture body is formed in a cylindrical shape.

The method according to claim 1,
And a separating rod for pushing and discharging the bent base material when the base material is bent is moved back and forth by a second driving unit.

The method according to claim 1,
Wherein the bending jig is provided to be replaceable for each size of the base material.

The method according to claim 1,
A first roller group for spreading the base material supplied to the fixing member from the left and right, and a second roller group for spreading the base material from the upper and lower sides.