KR101618165B1

KR101618165B1 - Apparatus for Bending or Cutting

Info

Publication number: KR101618165B1
Application number: KR1020150064646A
Authority: KR
Inventors: 함경도
Original assignee: 함경도
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2016-05-18

Abstract

The present invention relates to a bending apparatus comprising a frame part, a bending part, a force applying part and a force increasing part. The frame part forms an exterior frame. The bending part is included in the upper part of the frame part and applies amplified force to allow a predetermined object to be processed to be cut or bent. The force applying part is included in the lower side of the frame part and receives force to be amplified and transferred to the bending part from the outside to allow the bending part to cut or bend the object. The force increasing part is movably coupled to allow force to be transferred to the force applying part or the bending part and amplifies the force received through the force applying part to be transferred to the bending part. The force increasing part amplifies the force using multiple force triangles. Each force triangle includes: an input point receiving pressure from the outside of the force triangle; an output point where the pressure is amplified in the external direction of the triangle of force and acts; and a fixed point that allows the pressure to be amplified to an output point-side and act. Therefore, the object to be processed can be cut or bent by strong force amplified from weak force by a human such that convenience and efficiency in manufacturing a small-sized test product. In addition, a small-sized test product can be manufactured at lower cost.

Description

{Apparatus for Bending or Cutting}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending machine, and more particularly, to a bending machine capable of increasing economical efficiency and convenience in use for manufacturing a small-scale prototype by amplifying a weak force with a strong force to easily bend a small-

It is common that small quantities are first manufactured as a prototype product before the manufacture of the goods to be marketed, and then the products are mass produced and sold to the market by complementing the problems of the products. Thus, prototype manufacturing is an important developmental stage that takes place before a product is mass produced and sold to the market.

The manufacturing equipment used to manufacture these prototypes is expensive. It is possible to manufacture prototypes using expensive equipments, but it is also possible to have a company with abundant capital. Thus, there is a need for a manufacturing apparatus that can be used to produce prototypes at low cost.

Many techniques have been proposed for manufacturing apparatuses that help manufacture small-sized prototypes by manpower. Among these techniques, Korean Utility Model Publication No. 2000-0008548 entitled " Small Bending Device for Easy Manufacturing " Hereinafter referred to as prior art).

This prior art discloses a technique capable of bending an iron plate by a force without using an external power device such as an electric motor. However, the prior art has the following problems.

There is a problem in that it is difficult to bend an object to be processed because it exerts a strong force only to the extent that the direction of the force acting on the work is changed when bending or the like is performed by applying a force to the object.

An object of the present invention is to provide a bending machine capable of easily bending a rigid article such as an iron plate with a relatively weak person's force in order to manufacture a small-sized article such as a prototype product have.

According to an aspect of the present invention, there is provided a bending machine comprising: a frame part forming an external skeleton; A bending portion provided above the frame portion and applying a amplified force to a predetermined object to be cut or bent; A force applying unit provided below the frame unit and receiving a force to be amplified and transmitted from the outside to the bent part side so that the bent part can cut or bend the object; And a force increasing unit coupled to the force exerting unit or the bending unit so as to transmit a force and amplifying a force received through the force exerting unit and transmitting the amplified force to the bending unit, Wherein the triangle of force comprises an input point that receives pressure from the outside of the triangle of force, an output point at which the pressure is amplified in the outward direction of the triangle of force, And a fixed point fixed so that the pressure is amplified to act on the output point side.

Here, the resilient portion may include a first resilient piece hinged to the frame portion at one end and movable upward or downward at the other end; And a second pressing piece formed in a direction perpendicular to the longitudinal direction of the first pressing piece.

Furthermore, the reinforcing portion may include a first reinforcing bar hinged to the second engaging band at one end thereof;

A second reinforcement bar hinged to one end of the first reinforcement bar and hinged to the other end of the frame part at one end; And a third reinforcement bar hinged to the second reinforcement bar at one end and hinged at the other end to the bend; May be another feature of the present invention.

Further, the bending section may include: a bending blade contacting the object to apply a force to cut or bend the object; A bending pedal for supporting the object to be processed at a lower side of the bending blade so that the bending blade can apply a force to the object; And a bending frame for supporting the bending blade and transmitting an amplified force transmitted through the third bending part to the bending blade; May be included as another feature.

Furthermore, the first abutment portion and the second abutment portion are detachably coupled to each other, and the frame portion includes: a first lift arm hinged to the first abutment portion; A second lift arm hinged to the other end of the first lift arm and having one end hinged to the frame; And a hinge unit hinged to the frame unit to adjust a distance between the bending pedestal and the bending blade and to transmit a force to the other end of the second lift arm to separate the first reinforcement bar from the second reinforcement bar Adjusting lever; It is also possible to provide another feature.

Further, the frame portion may be provided with a force-to-be-assisting lever capable of moving the first pressing piece upward.

The bending machine according to the present invention amplifies a relatively weak force of a person and exerts a strong force, so that convenience and efficiency are improved in manufacturing a small-sized prototype.

Also, since the bending machine according to the present invention can be manufactured at a low cost, the manufacturing cost of the small-sized prototype can be reduced.

1 and 2 are perspective views schematically illustrating an expandable multi-tap according to an embodiment of the present invention.
3 is a front view schematically illustrating a bent portion of a bending machine according to an embodiment of the present invention.
FIGS. 4 to 5 are side views schematically illustrating the operation of the bending machine according to the embodiment of the present invention.
6 to 7 are side views schematically showing the first lift arm, the second lift arm, and the adjustment lever provided in the frame portion of the bending machine according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are perspective views schematically showing a bending machine according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, a bending machine according to an embodiment of the present invention includes a frame portion, a bending portion, a force portion, and a force increasing portion.

First, the frame part 100 forms the external skeleton of the bending machine as shown in the drawing. The frame portion 100 is preferably made of a rigid reinforcing material. The frame part 100 serves as a skeleton that supports the bending machine itself so as not to be shaken when bending the workpiece.

The upper surface of the frame part 100 may be provided with a work space in which a bending operation can be performed. For this purpose, it is preferable that the upper surface of the frame portion 100 is formed as a flat surface. On the upper surface of the frame portion, a bending pedestal 220 of a bent portion to be described later is provided.

The bent portion is provided on the upper side of the frame portion 100. Then, the amplified force is applied to the object so that a predetermined object can be cut or bent. The bending section will be described with reference to FIG.

3 is a front view schematically showing a bent portion according to an embodiment of the present invention. 1 to 3, the bending part 200 may include a bending blade 210, a bending support 220, and a bending frame 230.

The bending blade 210 contacts the object to be processed, and applies a force to the object so that the object is cut or bent. The bending blade 210 may be a sharp blade for cutting, or a blunt-ended blade may be used to simply bend the blades.

The bending blade 210 may be selected and replaced according to the application.

The bending pedestal 220 is provided below the bending blade 210 and the object to be processed so that the force exerted by the bending blade 210 on the object can be fully transmitted. In other words, as described briefly above, a bending pedestal 220 is provided on the upper surface of the frame part 100 to support the bending blade 210 so as to apply force to the object.

The bending pedestal 220 may also be used in correspondence with the bending edge 210 according to the use.

The bending frame 230 supports the bending blade 210 so that the bending blade 210 and the bending bracket 220 can stably bend the object without shaking. The bending frame 230 transfers the amplified force, which is transmitted through the third forceps 430 of the force unit 400, to the bending blade 210, which will be described later. For this, the bending frame 230 is preferably hinged to the third hinge 430. That is, as shown in FIGS. 1 to 3, the bending frame 230 is hinged to the third hinge 430 (see FIG. 4).

4 to 5 for convenience of explanation and understanding.

4 to 5 are schematic views for explaining the operation of the bending machine according to the embodiment of the present invention.

1 to 5, the force applying unit 300 is provided on the lower side of the frame unit 100, and the bent unit 200 includes a bent part (not shown) for cutting or bending the object, 200) to receive the force to be transmitted from the outside.

The force applying unit 300 includes a first force applying unit 310 and a second force applying unit 320.

The first pressing part 310 is hinged to the frame part 100 at one end. And the other end can move upward or downward about the hinge connection P1 at one end.

A foot plate 311 is provided at the other end of the first holding member 310 to receive a force from the outside. The user can put a foot on the foot plate 311 and apply a force while pressing the foot plate 313 downward.

As shown in the figure, it is preferable that the second pressing member 320 is formed in a direction perpendicular to the longitudinal direction of the first pressing member 310. Here, it is not necessary that the second holding piece 320 is perpendicular to the first holding piece 310, and it is sufficient that the second holding piece 320 is coupled with the first holding piece 310 in a form nearly approximate to the vertical.

The first and second pressing members 310 and 320 are hinged to the frame unit 100 by a hinge P1. The first and second pressing members 310 and 320 can move around the hinge coupling P1 with respect to the frame unit 100 as shown in FIG.

The second pressing member 320 is engaged with the first pressing member 410, which will be described later. In the present embodiment, the second force rest 320 and the first force rest 41 are hinged (P2), as shown in Figs. 3 and 4. Fig.

The force exerting portion 400 is fluidly coupled to allow the force of the force applying portion 300 or the bending portion 200 to be transmitted and amplifies the force received through the force applying portion 300, ).

The hysteresis unit 400 includes a first hysteresis unit 410, a second hysteresis unit 420, and a third hysteresis unit 430.

The first abutment portion 410 is hinged to the second abutting portion 320 of the abutting portion 400 at one end. Accordingly, the first abutment portion 410 can receive a pushing force from the second abutting portion 320 at one end.

One end of the second abutment unit 420 is hinged to the other end of the first abutment unit 410 (P3). And the other end is hinged P6 on the upper side of the frame part 100. [

One end of the third hood 430 is hinged to the second hood 420 and the other end of the third hood 430 is hinged to the bending frame 230 of the bending part P5.

4, the hinged (P3) portion between the first and second reinforcements 410 and 420 and the portion between the second and the third reinforcements 420 and 430, The first hinge unit 410, the second hinge unit 420 and the third hinge unit 430 may be combined in one hinge combination P3 or P4, It is also possible that the form is well.

The length of the second hood 420 may be longer than the length of the first hood 410. Further, it is preferable that the length of the second forceps is longer than the length of the third forceps 430.

As described above, the bending machine according to the embodiment of the present invention basically comprises the frame part 100, the bending part 200, the force applying part 300, and the boosting part 400. Next, the operation of the bending machine will be described.

First, the hysteresis unit 400 amplifies the force using a plurality of triangles of forces.

Here, the triangle of force refers to a virtual triangle consisting of three dots to which mutually related forces act. Here, three points are referred to as an input point, an output point, and a fixed point for convenience of explanation.

The input point is the point of force that is under pressure from the outside of the force triangle. That is, it receives the force applied in the inner direction of the triangle of the force. And the output point is the point of force acting in the outer direction of the triangle of force while the force (pressure) applied to the input point is amplified. The fixed point is a fixed point in that the force applied to the input point (pressure exerted from the outside to the inside) is amplified and a force acts on the output point.

The basic principle that amplifies the force is the principle of leverage. There are three points that appear in the principle of leverage: a point of force, a point of fulcrum and a point of action. Basically, the product of the magnitude of the force and the length is constant. The principle of leverage itself is well known, so a detailed description thereof will be omitted.

The input point corresponds to the point of weakness in the lever principle. And the output point corresponds to the point of action in the lever principle. The fixed point corresponds to the fulcrum in the principle of lever. Thus, the triangle of force basically uses the principle of leverage.

In FIGS. 4 and 5, a triangle of one force consisting of a point P1, a point P2 and a point P3 and another triangle of force consisting of a point P4, a point P5 and a point P6 can be seen.

The operation of the bending machine in this embodiment based on the principle of the leverage will be described in detail with reference to Figs. 1 to 5 as follows.

First, the object to be processed is placed on the bending pedestal 220. Then, the foot plate 311 is stepped on to apply force. At this time, the scaffold 311 corresponds to the point of the force that receives the force of pressing the lever in the principle of the lever. Then, the foot plate 311 receives the force and descends downward. Here, the hinged point P1 serves as a fulcrum.

The length of the second holding member 320 is longer than the length of the first holding member 310. [ Therefore, the force acting on the point P2 of the second holding member 320 is amplified more than the force applied to the foot plate 311. [

Then, the force acting at the point P2 acts as the force pressing the point P4 through the first force rest 410. [

The length of the second abutment section 420 is longer than the length of the third abutment section 430. The point P6 is a fixed point fixed to the frame portion and serves as a fulcrum in the principle of lever. Therefore, the force acting at the point P4 is amplified at the point P5 and becomes the force acting downward.

Since the force is amplified more than two times by using the triangle of two forces, the greatly increased force acts on the point P5 downward compared to the force applied to the foot plate 311 for the first time.

The point P5 is hinged to the bending frame 230 of the bending part 200. The point P5 of the third bending part 430 is moved downward by a large force to move the bending frame 230 and the bending blade 210, And is moved downward by the amplified force.

Accordingly, the bending blade 210 presses the object to be processed with the amplified force, and the object can be cut or bent according to the shape of the bending blade 210.

The second pressing member 320 is pulled in the front side (the direction in which the foot plate 311 on the right side in the figure is located is referred to as the front side), so that the force acts on the forward side in the force point P2, 410). The first bracing member 410 is pushed by the force acting on the fulcrum P 2 as if pushing the fulcrum P 3 and the point P 4 between the second bracing member 420 and the third bracing member 410 is moved forward You will receive the power to turn.

Here, since the strong point P6 is fixedly hinged to the frame portion 100, the strong point P5 is subjected to a downward force.

The force received by the point P5 on the downward side acts as a force for pressing downward the bending frame 230 coupled with the third hinge 430 in the force P5. This force is a force pressing the bending blade 210 coupled to the bending frame 230 downward vertically.

The bending blade 210, which has been pressed downward in the vertical direction, presses the object to be vertically downward to cut or warp the object placed on the bending pedestal 220.

The object to be processed is cut or bent through such an operation process.

However, in this embodiment, there may be a form in which the force-to-be-assisting lever 130 or the force guider 110 is further added as follows.

It is preferable that the frame unit 100 is provided with a force-to-be assisting lever 130 that can move the foot plate 311 of the first force resting unit 310 upward.

The first pressing piece 310 is moved downward by exerting a force through the foot plate 311 so that the foot plate 311 of the first pressing piece 310 can be pressed by the foot plate 311 of the first pressing piece 310, The lever 130 can be pulled or turned.

To this end, it is preferable that the engaging lever 130 is connected to the first engaging lever 310 through the strap 132. By pulling or rotating the gripper-side auxiliary lever 130, the strap 132 connected to the first gripper band 310 is wound. The strap 132 connected to the first holding member 310 is wound and the foot plate 311 of the first holding member 310 is moved to the upper side.

After the object to be processed is bent, the first force rest 310 can be moved upward by using the force versus the auxiliary lever 130. That is, when pulling the pulling force-side auxiliary lever 130, the pulling force of the pulling force of the pulling force is transmitted to the pulling force of the pulling force.

The first and second pressing members 310 and 310 are moved upward by the pressing force of the pressing force and the pressing force of the pressing force of the pressing force of the first pressing member 310 and the second pressing member 320, The forceps 410, the second forceps 420, and the third forceps 430 are returned to their home positions, and the object to be processed next can be bent.

By operating in this way, the work to amplify the force applied to the foot plate 311 can be cut or bent.

It is also preferable that the force guider 110 is further added.

That is, it is preferable that the frame portion 100 is provided with a force guider 110 for guiding one side end of the first force rest 310 to move upward or downward.

As shown in the figure, when the force guider 110 is provided, the first holding piece 310 smoothly moves upward or downward without being twisted when the foot plate 311 moves about the hinge connection P1 It is preferable to provide a guide to the user.

The frame unit 100 is preferably provided with guiding means 120 for guiding the bending frame 230 to vertically move up and down. As an example of such a guide means, there may be a padded form so that the bending frame 230 can be moved up and down without deviating, as indicated by reference numeral 120.

On the other hand, a configuration in which the following configuration is further added to the above-described bending machine is also preferable.

Reference is now made to Figs. 6 to 7.

6 to 7 are side views schematically showing the first lift arm, the second lift arm, and the adjustment lever provided in the frame portion of the bending machine according to the embodiment of the present invention.

6 to 7, it is preferable that the first force rest 410 and the second force rest 320 are detachably coupled to each other. A first lift arm 510, a second lift arm 520, and an adjustment lever 530 are additionally provided to the frame unit 100.

One end of the first lift arm 510 is hinged (P11) to the first reinforcement rod 410. And is hinged to the second lift arm 520 (P12). The second lift arm 520 is hinged to the other end of the first lift arm 510 (P12). One end of the second lift arm 520 is hinged to the frame part 100 (P13).

The adjustment lever 530 is hinged to the frame part 100 to adjust the distance between the bending support 220 and the bending blade 210 so that force is transmitted to the other end of the second lift arm 520 So that the first forceps 410 and the second forceps 320 can be separated from each other.

6 to 7, the adjustment lever 530 may have a bent shape.

6, when the control lever 530 is pulled, the control lever 530 is rotated by a predetermined angle about the hinged portion P14 of the frame portion 100. [ The other end of the second lift arm 520 is lifted up as shown in Fig.

When the other end of the second lift arm 520 is lifted by the adjustment lever 530, the second lift arm 520 is rotated by a predetermined angle around the hinge connection P13 at one end of the second lift arm 520. [ In this process, the first lift arm 510, which is hinged to a portion of the second lift arm 520, is lifted together with the second lift arm 520.

As the first lift arm 510 is lifted up, the first lift bar 410 hinged to one end of the first lift arm 510 is lifted up. At this time, the first forceps 410 and the second forceps 320 are separated.

The bending blade 210 and the bending pedestal 220 are spaced apart from each other by a predetermined distance so that the object to be processed can be placed on the upper surface of the bending pedestal 220.

A schematic view when the adjusting lever 530 is pulled toward the foot plate is shown in Fig.

After the object to be processed is placed on the bending pedestal 220, the first to third forceps 310 are lifted as shown in FIG. 6 by operating the force versus the auxiliary lever 130.

6, the second lift arm 520 is lowered by rotating the adjustment lever 530 downward by a predetermined angle around the hinge coupling P14.

The first lift arm 510 hinged to the second lift arm 520 is downwardly moved downward as the second lift arm 520 rotates downward about the hinge coupling P13. As the first lift arm 510 moves downward, the first reinforcement rod 410 also moves downward and is coupled to the second force rest 320 as shown in FIG.

As shown in FIGS. 6 to 7, when the first reinforcement rod 410 and the second reinforcement rod 320 are attached and detached, the first reinforcement rod 410 is formed with a latching groove 413 And it is also preferable that the end to the second force rest 320 can be inserted into the engagement groove 413 of the first reinforcement rod 410.

The use of the adjusting lever 530 allows the bending blade 210 to be lowered so that the bending blade 210 is brought into contact with the object placed on the bending pedestal 220 The bending blade 210 can be aligned on the object to be processed even if the foot 311 is not pushed in order to align the object to be processed in a tight fit between the wings 210 and 210.

Therefore, it is preferable that the user relieves the trouble of positioning by pressing the foot plate 311, and the force is less.

As described above, the bending machine according to the present invention amplifies a weak force of a person and exerts a strong force to break the object so as to cut or bend it, thereby improving convenience and efficiency in manufacturing a small-sized prototype have.

Also, since the bending machine according to the present invention can be manufactured at a low cost, the cost for manufacturing a small-sized prototype can be reduced.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the scope of the present invention is to be construed as being limited only by the embodiments, and the scope of the present invention should be understood as the following claims and their equivalents.

100: frame part 130:
210: Bending blade 220: Bending bracket
230: bending frame 310: first pressing portion
320: second force unit 410: first force unit
420: second force unit 430: third force unit
510: first lift arm 520: second lift arm
530: Control lever

Claims

A frame part forming an external skeleton;
A bending portion provided above the frame portion and applying a amplified force to a predetermined object to be cut or bent;
A force applying unit provided below the frame unit and receiving a force to be amplified and transmitted from the outside to the bent part side so that the bent part can cut or bend the object; And
And a bending part coupled to the bending part to flexibly transmit the force to the bending part by amplifying a force received through the bending part,
Wherein,
(310) hinged to the frame part at one end and moving the other end upward or downward; And
(320) formed in a direction perpendicular to the longitudinal direction of the first holding piece (310)
[0027]
(410) hinged at one end to the second point of force (320) at a point P2 (P2);
(420) hinged to one end of the first reinforcement rod (410) at a force point P3 (P3) and hinged at the other end to the upper side of the frame portion at a point P6 (P6); And
(430) hinged at the fulcrum P4 (P4) to one end of the second reinforcement rod (420) and hinged to the bend at the other end of the fulcrum P5 (P5); Lt; / RTI >
The footrest 311 provided at the other end of the first force rest 310 is moved downward by an external force to move the second force rest 320 hinged to the first point of force P1 And the first bracing member 410 presses the first bracing member 410 while the force acts on the force point P2 so that the first bracing member 410 acts on the force point P2 The force P4 (P4) of the second baffle 420 and the third baffle 430 acts on the force point P4 (P4) by pushing the force point P3 (P3) You will be given the power to turn,
Since the second forceps 420 is hinged to the frame 100 at a fixed point P6 (P6), the force P5 (P5) is subjected to a downward force, so that the force P5 P5), the bending part coupled with the third reinforcement rod (430) is pushed downward in the downward direction.

delete

The method according to claim 1,
The bending portion
A bending blade contacting with the object to apply a force to cut or bend the object;
A bending pedal for supporting the object to be processed at a lower side of the bending blade so that the bending blade can apply a force to the object; And
A bending frame for supporting the bending blade and transmitting the amplified force transmitted through the third bending unit to the bending blade; Wherein the bending machine comprises a bending machine.

5. The method of claim 4,
Wherein the first pressing portion and the second pressing portion are detachably coupled,
In the frame portion,
A first lift arm hinged to the first reinforcement bar;
A second lift arm hinged to the other end of the first lift arm and having one end hinged to the frame; And
And a second lift arm which is hinged to the frame portion to adjust a gap between the bending pedestal and the bending blade and transmits a force to the other end of the second lift arm, lever; Wherein the bending machine comprises a bending machine.

The method according to claim 1,
Wherein the frame portion is provided with a pressing force / auxiliary lever capable of moving the first pressing piece upward.