KR102195636B1 - Apparatus for bending bar - Google Patents

Abstract

The present invention relates to an apparatus for bending a round bar which forms a desired curvature without an angle error by a single operation. The apparatus for bending a round bar comprises: a plate; a pair of driving blocks installed on the plate to be separated from each other, wherein at least one of the pair of driving blocks is slid and moved in a direction of changing the separation distance by a pressing force provided from the outside, and a plurality of first grooves separated at regular intervals to be dented and formed in a semicircular shape are formed on the upper surfaces of the pair of driving blocks; lifting unit blocks provided with second grooves being formed on the lower surfaces thereof, corresponding to the first grooves, and having first screw threads, and provided on an upper portion of the driving blocks to be lifted to form a penetrating hole through the first grooves and the second grooves while coming in contact with the driving blocks; a fixed unit block formed to be positioned between the lifting unit blocks, and provided with a stopping protrusion to prevent separation by stopping when lifting the lifting unit blocks; a curvature adjustment bar having second screw threads formed on the outer circumferential surface thereof, and penetrating the penetration hole to be engaged with the first screw threads to move forward and backward by rotation and adjust the position thereof; and a plurality of pressing members which are detachably coupled to an end of the curvature adjustment bar to be positioned to face the gap between the driving blocks, and come in contact with the round bar to press and support the round bar to form a prescribed curvature on the round bar.

Description

Round bar bending device {Apparatus for bending bar}

The present invention relates to a round bar bending device, and more particularly, to a round bar bending device that precisely adjusts the curvature so that a desired curvature can be quickly worked without errors in the round bar with one operation.

In general, in industrial sites, when performing work such as manufacturing or processing a work piece, for convenience and work efficiency, a holder that can place the work piece is used.

In addition, when working with various types of workpieces, a holder manufactured in accordance with various shapes of the workpiece is used, and a holder made of a skeleton corresponding to the curvature and shape of the workpiece so that the workpiece can be stably settled and worked. And it is possible to improve the convenience of work by providing a work table.

In order to manufacture customized mounts for various workpieces, round bars and pipes made of metal materials that are easy to process and can be manufactured at relatively low cost are mainly used.In particular, the mounts are suitable for the curvature, length, size, and shape of the workpiece. By bending the member and going through the process of cutting and welding, it is possible to manufacture a holder suitable for the workpiece.

However, in the related art, in order to process the shape of a round bar made of metal according to the shape of the object to be processed, a clamp having an arc-shaped annular groove is installed on the top plate of a mounting table having a certain height, and a locking piece for the round bar is attached to one side of the clamp. In the state, after contacting the round bar with the above clamp, the worker bent the pipe in one direction using a hand or tool to create the desired curvature and curved shape through manual work, but this not only increases the fatigue of the operator, but also the working speed. And there was a problem that it had a significant effect on the reduction of work efficiency, and in order to contact the pressing member with the round bar, the curvature control bar was repeatedly rotated on the plate to move forward and backward to contact the round bar.

However, as the curvature control rod must be repeatedly rotated, the work time increases and the operator's fatigue accumulates, leading to a decrease in work efficiency.

Therefore, when trying to manufacture a round bar holder corresponding to a workpiece, it was required to develop a round bar bending technology that reduces the physical consumption and time waste of the operator, and prevents the production of a defective round bar holder, and to solve this problem. For this purpose, Korean Utility Model No. 20-0324624 discloses a technology related to a bending machine that bends circular and individual pipes, L-shaped plates, angles, and round bars to have various curvatures by forming rollers. However, since the change in the curvature depends on the control of the force pressing the workpiece with the above-described molding roller, when an error occurs, it is difficult to obtain a desired curvature and there is a problem that a defective product is likely to be produced.

In addition, Korean Patent Registration No. 10-1576948 discloses a technology related to a mold unit for a stretch bending machine that allows the object to be bent more precisely by allowing the curvature of the mold to be finely adjusted. Therefore, there is a problem in that it is difficult to precisely control the position of the inflection point.

Republic of Korea Utility Model Publication No. 20-0324624 (2003.05.29) Korean Registered Patent Publication No. 10-1576948 (2015.12.07.)

The present invention was conceived to solve the above problems, and an object of the present invention is to precisely adjust the round bar to form various curvatures to form a variety of curvatures on the round bar to be processed, thereby stably pressing the round bar, and without an angle error with one operation. It is to provide a round bar bending device to form a desired curvature.

In addition, it is to provide a round bar bending device that shortens the working time by providing a driving block capable of contacting and separating the curvature control bar so that the pressing member can be easily moved forward and backward to the round bar.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

In order to achieve the above object, the present invention is a bending device for bending by pressing a round bar, provided in a pair on a plate and on the plate and installed to be spaced apart from each other, and at least one of the pair is provided by a pressing force provided from the outside. One is slidably moved in the direction of varying the separation distance, and corresponds to the driving block in which a plurality of first grooves are formed in a semicircular shape and spaced apart at regular intervals on the upper surface and the first groove on the lower surface, A lifting unit block having a second groove in which a screw thread is formed, and being provided to be lifted on the driving block to form a through hole through the first groove and the second groove in a state in contact with the driving block; A second screw thread is formed on an outer circumferential surface and a fixed unit block provided with a locking protrusion so as to prevent separation through locking when the elevator unit block is raised and lowered, and is formed to be positioned between the lifting unit blocks. 1 The round bar and the round bar are removably coupled to the ends of the curvature control rod and the end of the curvature control rod, which are engaged with a screw thread and move back and forth through rotation, and are positioned toward the driving block, so that a predetermined curvature is formed on the round bar. It characterized in that it comprises a plurality of pressing members for pressing and supporting in contact with.

Here, the curvature control rod has a fixing groove formed such that an outer circumferential surface of an end portion positioned between the pair of driving blocks is recessed through the through hole,

The pressing member has an insertion groove into which the curvature control rod is inserted, and a fastening hole formed in a position corresponding to the fixing groove inserted into the insertion groove and formed in a direction perpendicular to the insertion groove, and the While the fixing groove is supported by a fixing pin inserted into the fastening hole, it is rotatably coupled to the curvature control rod and the pressing member, so that the pressing member is in close contact with the outer circumferential surface of the round bar.

In addition, the fastening hole is characterized in that a third screw thread is formed on an inner circumferential surface, and a fourth screw thread is formed on the outer circumferential surface of the fixing pin, so that the fastening hole and the fixing pin are screwed to each other.

In addition, the pressing member includes a first block detachably coupled to the curvature control rod, and a depressed groove of a depressed shape corresponding to the shape of the round bar and detachably coupled to the first block. It characterized in that it comprises a second block for pressing in contact with.

In addition, the plate is characterized in that at least one ring is formed between the pair of driving blocks to support the round bar, and the ring is formed of a rubber material having elasticity and flexibility.

In addition, the locking jaw is provided with an elevating section inside by a first locking jaw formed on one side of the upper portion of the fixed unit block and a second locking jaw formed on a lower side of the elevating unit block, and a second locking jaw It characterized in that it is provided to prevent separation by the first locking jaw.

In addition, the elevating section is characterized in that at least one elastic member is provided so that the elevating unit block can easily contact and separate from the curvature control rod by elastic restoration.

The present invention has the advantage of stably pressing the round bar by precisely controlling the round bar to form a variety of curvatures on the round bar that is a workpiece, and forming a desired curvature without an angle error in one operation.

In addition, there is an advantage of improving work efficiency by reducing the time required for work and the fatigue of the operator.

1 is a change diagram of a round bar bending device showing that a curvature is formed on a round bar while a driving block is moved according to an embodiment of the present invention.
2 is a plan view of a round bar bending device according to another embodiment of the present invention.
3 is a plan view and a cross-sectional view of a lifting unit block and a fixed unit block according to an embodiment of the present invention.
Figure 4 is a perspective view showing the coupling structure of the driving block and the lifting unit block and the curvature control rod according to an embodiment of the present invention.
5 is a cross-sectional view showing a state in which the curvature control rod and the pressing member are separated according to an embodiment of the present invention.
6 is a cross-sectional view showing a combined state of a curvature control rod and a pressing member according to an embodiment of the present invention.
7 is a perspective view showing a first block and a second block according to an embodiment of the present invention.
8 is a plan view of a recessed groove of various shapes according to an embodiment of the present invention

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims.

With reference to the accompanying drawings below will be described in detail for the implementation of the present invention. Regardless of the drawings, the same reference numerals refer to the same elements, and "and/or" includes each and all combinations of one or more of the mentioned items.

Although the first, second, and the like are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical idea of the present invention.

The terms used in this specification are for describing exemplary embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, “comprises” and/or “comprising” do not exclude the presence or addition of one or more other elements other than the mentioned elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a round bar bending device. The round bar bending device of the present invention is a device for manufacturing a round bar having a curvature corresponding to the shape of a work piece when trying to make a cradle using a round bar, and relates to a device that allows various curvatures to be formed on the round bar without limiting the curvature.

1 is a change diagram of a round bar bending device showing that a curvature is formed in a round bar while a driving block according to an embodiment of the present invention is moved, and FIG. 2 is a plan view of the round bar bending device shown in FIG. 1.

As shown in Figs. 1 and 2, the round bar bending device 100 is a device for bending so that a predetermined curvature is formed in the workpiece, and largely, the plate 110, the driving block 120, and the curvature control It includes a rod 130, a pressing member 140, a lifting unit block 160, and a fixed unit block 170.

First, the plate 110 is formed in a plate shape, and on the plate 110, the driving block 120, the curvature adjusting rod 130 and the pressing member 140, the lifting unit block 160, and The fixed unit block 170 is installed.

In this case, the plate 110 may be installed horizontally on the floor or on the ground, and may be installed vertically on the air or on the wall as needed, but preferably the plate 110 is horizontally on the floor or on the ground. Must be installed properly.

In addition, the plate 110 may have one or more rings 111 capable of supporting the round bar 10.

The round bar 10 is mounted on the plate 110 and is pressed by operation on the driving block 120, the curvature control rod 130, and the pressing member 140 installed on the plate 110 As a result, since a predetermined curvature is formed, the ring 111 supports and fixes the round bar 10 so as not to move before being pressed by the pressing member 140.

At this time, the ring 111 should be made of a material that does not interfere with the shape of the round bar 10 being deformed or forming a predetermined curvature, and preferably the ring 111 is made of a rubber material having elasticity and flexibility. It may be formed, but is not limited thereto.

Next, the driving block 120 has a long hexahedral block shape, is formed in a pair, and is installed to face each other on the plate 110 to be spaced apart.

A plurality of first grooves 121 are formed on the upper surface of the driving block 120 to be spaced apart at regular intervals and depressed in a semicircular shape.

As an example, the first groove 121 may be provided in a smooth semicircular shape with less frictional force inside so that the curvature control rod 130 to be described later can be inserted and moved back and forth, and the first groove 121 It goes without saying that the silver thread (not shown) is provided in the inside of the curvature control rod 130 to be engaged with the second screw thread 132 to be described later and rotated.

The driving block 120 may be slidably moved on the plate 110 by receiving a pressing force from the outside, and at least one of the pair of driving blocks 120 has a separation distance between the driving blocks 120 It can be slidably moved in a variable direction.

That is, one driving block 120 may be slid to another driving block 120 by receiving a pressing force from the outside.

In addition, the pair of driving blocks 120 may be slid toward each other at the same time by receiving a pressing force from the outside, so that the separation distance between them may be varied.

Here, the pressing force for sliding the driving block 120 may be provided from a hydraulic cylinder or a pneumatic cylinder, and preferably may be provided from a hydraulic cylinder.

The hydraulic cylinder (not shown) that provides the pressing force to the drive block 120 is connected to the rear end of the drive block 120 to operate, preferably, a plurality of the hydraulic cylinders (not shown) are provided, and more preferably For example, five or more hydraulic cylinders (not shown) may be spaced apart at regular intervals.

Meanwhile, a second groove 161 located above the driving block 120 and corresponding to the first groove 121 on a lower surface thereof and in which the first screw thread 162 is formed is formed, and the driving block (120) The elevating unit block provided to be elevating at an upper portion and forming a through hole 163 through the first groove 121 and the second groove 161 in a state in contact with the driving block 120 160 is provided.

In other words, the first groove 121 provided on the upper surface of the driving block 120 and the second groove 161 provided on the lower surface of the lifting unit block 160 are disposed to face each other, A hole is formed, and the through hole 163 is provided.

That is, the through hole 163 is preferably provided in a circular cross-section, and only the upper surface of the through hole 163 is threaded by the first screw thread 162 provided in the second groove 161 Is what can be formed.

On the other hand, the through hole 163 may be installed through a plurality of the curvature control rods 130 penetrated, and preferably may be installed through the drive block 120 in a sliding direction.

Looking at the curvature control rod 130 in more detail, the curvature control rod 130 is formed in the shape of a long rod, is provided in plural and penetrated through the through hole 163 to be installed.

More specifically, the curvature control rod 130 may be installed to penetrate vertically in a direction in which the driving block 120 slides.

In addition, the curvature control rod 130 is coupled through the through hole 163 and can be positioned in the front and rear direction, and preferably, the pair of the pair of the The position of the end of the curvature control rod 130 protruding between the through holes 163 may be adjusted.

In this case, the curvature adjusting rod 130 may be provided with a second screw thread 132 on an outer circumferential surface thereof and meshed with the first screw thread 162.

Accordingly, the position of each end of the plurality of curvature control rods 130 may be adjusted to form a curvature in the round bar 10.

At this time, the position of the curvature control rod 130 may be manually adjusted by borrowing the force of a person or a machine.

2 is a plan view of a round bar bending device according to another embodiment of the present invention.

As shown in FIG. 2, the round bar bending device may further include a control unit 150 for automatically adjusting the positions of the plurality of curvature control bars 130.

The control unit 150 is coupled to a plurality of the curvature control rods 130, respectively, and is remotely controlled by a remote control device provided externally such as a server, so that each of the curvature control rods 130 The position can be adjusted.

Specifically, the control unit 150 may be provided in a pair to control the curvature control rods 130 respectively coupled to each of the pair of driving blocks 120, and a pair of the control unit 150 ) Can be controlled from one of the remote control devices.

In addition, the control unit 150 controls at least one of the plurality of hydraulic cylinders (not shown) to selectively operate at least one of the hydraulic cylinders (not shown).

This is to increase the accuracy of processing by making a difference in the pressing force applied to the pressing point of the driving block 120 so as to correspond to the curvature to be formed on the round bar 10.

In other words, by selectively operating a plurality of the hydraulic cylinders (not shown) to give a difference in the pressing force applied to the driving block 120, the force that the pressing members 140 press the round bar 10, that is, , It makes the deviation of the bending load, and through this, the curvature can be adjusted more precisely.

For example, the curvature control rod 130 and the pressing member 140 provided adjacent to a portion connected to the hydraulic cylinder (not shown) selectively operated among the plurality of hydraulic cylinders (not shown) are not Compared to the curvature adjusting rod 130 and the pressing member 140 provided in the portion, a small radius of curvature can be formed because the force to press the round bar 10 is relatively large, and the hydraulic cylinder (not shown) A portion pressed by the curvature control rod 130 and the pressing member 140 provided in a portion where the is not operated may form a large radius of curvature.

3 is a plan view and a cross-sectional view of a lifting unit block and a fixed unit block according to an embodiment of the present invention.

As shown in (a) of FIG. 3, it is formed to be positioned between the lifting unit block 160 and the lifting unit block 160, and prevents the lifting unit block 160 from being disengaged by being caught when lifting. It is provided as the fixed unit block 170 on which the locking projection 180 is provided.

In other words, the fixed unit block 170 is positioned on both sides of the one lifting unit block 160, and the curvature adjusting rod 130 is provided through it so as to correspond to the plurality of through holes 163. will be.

As an example, the driving block 120 may be provided with five through holes 163 so that the five curvature control rods 130 can penetrate, and fix one of the curvature control rods 130. One of the lifting unit blocks 160 and the two fixed unit blocks 170 may be provided so as to be able to do so.

The fixing unit block 170 may be coupled to and fixed to the driving block 120 by fastening at least one bolt.

As shown in (b) of FIG. 3, when the lifting unit block 160 is elevated, a locking protrusion 180 is provided to prevent separation from the fixed unit block 170 through a locking.

In other words, the locking jaw 180 includes a first locking jaw 175 formed on an upper side of the fixed unit block 170 and a second locking jaw formed on a lower side of the lifting unit block 160 ( The elevating section 182 is provided inside by 165, and is provided to prevent the second locking jaw 165 from being separated by the first locking jaw 175.

As an example, at least one second locking jaw 165 is provided on a lower side of the lifting unit block 160 and is provided inside the first locking jaw 175 and the second locking jaw 165 At least one elastic member 164 is provided in the elevating section 182 to be provided so that the elevating unit block 160 can easily contact and separate from the curvature control rod 130 by elastic restoration. .

For example, the elastic member 164 may be provided with a spring.

On the other hand, when the lifting unit block 160 is in contact with the curvature control rod 130, the first screw thread 162 inside the through hole 163 provided at one end of the lifting unit block 160 The second screw threads 132 are engaged and coupled, and the curvature control rod 130 is rotated to move in the front-rear direction.

At this time, since the lifting unit block 160 is in a state of being pressed from the top to the bottom by the elastic member 124 to which the elastic force is applied, the force in the vertical direction by the rotation of the curvature control rod 130 Is not received.

On the other hand, when the lifting unit block 160 is lifted in a vertical direction to release the coupling with the curvature control rod 130, the curvature control rod 130 freely moves forward and backward in the through hole 163. It becomes possible to move.

For example, handles (not shown) may be further provided on both sides of the lifting unit block 160 so that an operator can easily grasp and lift it.

As another example, it goes without saying that micro protrusions (not shown) or non-slip tapes (not shown) may be attached to prevent slipping due to frictional force.

4 is a perspective view showing a coupling structure of a driving block, a lifting unit block, and a curvature control rod according to an embodiment of the present invention.

As shown in FIG. 4, a plurality of the through holes 163 formed by the driving block 120 and the lifting unit block 160 are formed to pass through at a predetermined interval, and the through hole 163 The curvature control rod 130 is inserted through.

At this time, the cross section of the through hole 163 is formed in a cylindrical shape that is elongated in the longitudinal direction so that the curvature control rod 130 can be moved forward and backward along the inner peripheral surface of the through hole 163.

Therefore, the curvature control rod 130 moves forward and backward along the inner circumferential surface of the through hole 163 having a circular cross section, so that the position of the inflection point of the round rod 10 can be precisely adjusted.

In other words, a plurality of the curvature control rods 130 are moved in the front and rear directions to contact each of the round bars 10, at this time, in addition to a method of rotating the curvature control rod 130 by repeated rotation, The lifting unit block 160 is vertically lifted so that the curvature control rod 130 can be easily moved in the front and rear direction, so that it can be quickly placed close to the round rod 10.

That is, the plurality of curvature control rods 130 may have different positions in the through-holes 163, and, as mentioned above, the positions of the curvature control rods 130 are adjusted to correspond to the desired curvature to be formed in the round rod 10. Can be deployed.

Subsequently, the lifting unit block 160 is brought into contact with the curvature control rod 130 to adjust the curvature into the through hole 163 formed in correspondence with the second screw thread 132 and the first screw thread 162 The rod 130 is rotated so that the desired curvature can be quickly worked.

In other words, it is possible to improve work efficiency by reducing working time and reducing worker fatigue.

At this time, as mentioned above for curvature control, the curvature control rod 130 is moved forward and backward so as to be disposed at a position corresponding to a desired curvature, and then fastened by the lifting unit block 160, and the curvature It can be fixed so as not to be separated from the position where the adjustment rod 130 is disposed.

5 is a cross-sectional view showing a state in which a curvature control rod and a pressing member are separated according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view showing a combined state of a curvature control rod and a pressing member according to an embodiment of the present invention. to be.

5 and 6, the pressing member 140 has an end of the curvature adjusting rod 130 so that the pressing member 140 is detachably coupled to the end of the curvature adjusting rod 130. Insertion groove 141 to be inserted may be formed.

More specifically, the insertion groove 141 formed in the pressing member 140 is a groove in the form of a groove inward from the rear side of the pressing member 140, and the curvature adjusting rod 130 is inserted and supported. .

On the other hand, at the end of the curvature control rod 130 inserted into the insertion groove 141, a fixing groove 131 formed by depressing an outer peripheral surface may be additionally provided, and preferably, the fixing groove 131 is It is formed along the circumferential direction at the end of the curvature control rod 130, the fixing groove 131 is inserted into the insertion groove 141 is positioned.

In addition, the pressing member 140 may be formed with a fastening hole 142 vertically penetrating from the top surface to the insertion groove 141, preferably the fastening hole 142 is the insertion groove 141 ) Is formed in a vertical direction and is formed to communicate with the insertion groove 141, and is formed at a point where the fixing groove 131 is located.

In addition, in the fastening hole 142, the fixing pin 20 is inserted, and the fixing pin 20 is supported by abutting against the fixing groove 131 having a relatively concave outer circumferential surface. The curvature control rods 130 may be detachably coupled to each other.

The curvature control rod 130 and the pressing member 140 fixed only by a combination between the fixing pin 20 and the fixing groove 131 are inserted even when the curvature control rod 130 is rotated in a circumferential direction. The curvature control rod 130 inserted in the groove 141 is turned away so as to prevent the pressing member 140 from rotating together with the curvature control rod 130.

Here, the fixing pin 20 has a pin shape having a predetermined length, and at the same time as being inserted into the fastening hole 142, the end of the fixing pin 20 is inserted and supported in the fixing groove 131, so that the curvature control rod It is possible to prevent the departure of (130).

Further, the fastening hole 142 may be formed with a third screw thread 142a on the inner circumferential surface, and the fixing pin 20 may be formed with a fourth screw thread 22 on the outer circumferential surface as in the form of a bolt screw. .

Accordingly, the fastening hole 142 and the fixing pin 20 are engaged through the third screw thread 142a and the fourth screw thread 22 to increase fastening force.

7 is a perspective view showing a first block and a second block according to an embodiment of the present invention.

When the pressing member 140 according to the present invention is described with reference to FIG. 7, the pressing member 140 includes a first block 143 detachably coupled to the curvature control rod 130, and the first block 143 ) May be detachably coupled to, and may include a second block 144 in which a recessed groove 144a having a recessed shape corresponding to the shape of the round bar 10 is formed.

When the first block 143 is described first, the first block 143 has a shape and configuration similar to the pressing member 140 described above, and may be combined with the curvature control rod 130. . To this end, as in the exemplary embodiment of the present invention, the first block 143 may be formed with the insertion groove 141 and the fastening hole 142 as described above. In addition, the second block 144 is detachably coupled to the first block 143 at the other end opposite to one end where the insertion groove 141 is formed.

The second block 144 is detachably coupled to the first block 143 and is a portion capable of pressing the round bar by contacting the round bar seated between the pair of driving blocks 120. In addition, the second block 144 may be supported by a round bar in contact with the round bar 10, the recessed groove (144a) for forming a curvature having a desired angle may be formed in the round bar (10). The recessed groove 144a has a shape recessed toward the first block 143 and is formed at a position capable of contacting the round bar 10 seated on the plate 110.

8 is a plan view of a recessed groove of various shapes according to an embodiment of the present invention.

As shown in FIG. 8, as a plan view of a depression groove 144a having various shapes, a cross-sectional view of the depression groove 144a in the second block 144 is cut and viewed from above.

Referring to FIG. 8, the recessed groove 144a formed in the second block 144 may be formed not only in one shape, but in various shapes. In other words, various second blocks 144 in which the recessed grooves 144a of various shapes are formed may be formed, and the second block 144 suitable for the curvature to be formed in the round bar 10 It can be used in combination with one block 143.

In more detail, when a curvature is formed on the round bar 10 formed to have a predetermined length, the angle at which the curvature is formed may be different according to the length. For example, a radius of curvature may be formed at a central portion of the round bar 10 to be small, and a radius of curvature may be formed as a distance from the central portion of the round bar 10 increases. In addition, if the corner of the recessed groove 144a is formed at a right angle, the round bar 10 may be crushed to form an angle corresponding to the angled recessed groove 144a while being pressed by the angled recessed groove 144a. have. In order to form the round bar 10 having such a curvature, an appropriate arrangement of the curvature control bar 130 is required, and at the same time, the recessed groove 144a to which the round bar 10 abuts is also formed. The recessed groove (144a) recessed to correspond to may be required.

Although the embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You can understand that there is. Therefore, it is to be understood that the embodiments described above are illustrative and non-limiting in all respects.

10: round bar
20: fixing pin
22: fourth thread
100: round bar bending device
110: plate
111: ring
120: drive block
121: first groove
130: curvature control rod
131: fixed groove
132: second thread
140: pressure member
141: insertion groove
142: fastening hole
142a: third thread
143: first block
144: second block
144a: recessed groove
150: control unit
160: lifting unit block
161: second groove
162: first thread
163: through hole
164: elastic member
165: second jamming jaw
170: fixed unit block
175: first jamming jaw
180: locking jaw
182: elevating section

Claims (7)

In a bending device for bending by pressing a round bar,
plate;
It is provided as a pair on the plate and is installed to be spaced apart from each other, and at least one of the pair is slid in a direction to change the separation distance by a pressing force provided from the outside, and is spaced at regular intervals on the upper surface in a semicircular shape. A driving block in which a plurality of first grooves that are recessed are formed;
A second groove corresponding to the first groove and in which a first screw thread is formed is formed on a lower surface, and the first groove and the second groove are provided on the driving block so as to be liftable and in contact with the driving block. An elevating unit block forming a through hole through a groove;
A fixed unit block formed to be positioned between the lifting unit blocks and provided with a locking protrusion to prevent separation through locking when the lifting unit block is raised or lowered;
A curvature adjusting rod having a second screw thread formed on an outer circumferential surface thereof, passing through the through hole and engaging with the first screw thread, moving back and forth through rotation, and adjusting the position;
Includes; a plurality of pressing members detachably coupled to the end of the curvature control rod to be positioned toward the drive block, and for pressing and supporting the round bar in contact with the round bar so that a predetermined curvature is formed on the round bar, and
The locking jaw is provided with an elevating section therein by a first locking jaw formed on an upper side of the fixed unit block and a second locking jaw formed on a lower side of the elevating unit block, and a second locking jaw is provided with the second locking jaw. 1, the lifting section is provided with at least one elastic member to facilitate contact and separation of the lifting unit block with the curvature control rod by elastic restoration. Round bar bending device The method of claim 1,
The curvature control rod,
A fixing groove formed such that an outer peripheral surface of an end portion positioned between the pair of driving blocks is recessed is formed through the through hole,
The pressing member,
An insertion groove into which the curvature control rod is inserted, and a fastening hole formed in a position corresponding to the fixing groove inserted into the insertion groove and formed in a direction perpendicular to the insertion groove is formed,
A round bar bending device, characterized in that while the fixing groove is supported by a fixing pin inserted into the fastening hole, the curvature control rod and the pressing member are rotatably coupled, and the pressing member is in close contact with the outer circumferential surface of the round bar. The method of claim 2,
The fastening hole has a third screw thread formed on the inner circumferential surface,
The fixing pin is a round bar bending device, characterized in that a fourth screw thread is formed on an outer circumferential surface so that the fastening hole and the fixing pin are screwed to each other. The method of claim 1,
The pressing member,
A first block detachably coupled to the curvature control rod, and a second depressed groove that is detachably coupled to the first block and has a depressed shape corresponding to the shape of the round bar to contact and pressurize the round bar. Round bar bending device comprising a block. The method of claim 1,
The plate,
At least one ring is formed between the pair of driving blocks to support the round bar, the ring bar bending device, characterized in that formed of a rubber material having elasticity and flexibility. delete delete

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