KR101658339B1 - Bending method and stretch bending device - Google Patents

Bending method and stretch bending device Download PDF

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Publication number
KR101658339B1
KR101658339B1 KR1020150111765A KR20150111765A KR101658339B1 KR 101658339 B1 KR101658339 B1 KR 101658339B1 KR 1020150111765 A KR1020150111765 A KR 1020150111765A KR 20150111765 A KR20150111765 A KR 20150111765A KR 101658339 B1 KR101658339 B1 KR 101658339B1
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South Korea
Prior art keywords
bending
forming frame
forming
stretching
frame
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KR1020150111765A
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Korean (ko)
Inventor
오두환
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주식회사 싸이텍
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Priority to KR1020150111765A priority Critical patent/KR101658339B1/en
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Publication of KR101658339B1 publication Critical patent/KR101658339B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/02—Bending by stretching or pulling over a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/22—Auxiliary equipment, e.g. positioning devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The present invention relates to a stretch bending device and a stretch bending method. The purpose of the present invention is to remarkably improve a quality of a bending product of a forming frame (4) in a process in which a bending mold (22) pulls the forming frame (4) for bending by enabling an adjusting cylinder (46) to provide a stretching function to both sides of the forming frame (4) with a pulling force in order to solve a spring back phenomenon or torsion generated in the bending process by stretching. To achieve this, the present invention includes: a table (6) having a vertical rail (8) on a central part and horizontal rails (10) in both sides of a front end of the vertical rail (8) separately; a bending unit (12) joined to the vertical rail (8) to be able to side forward and backward and bending the forming frame (4) at a predetermined curvature; a bending cylinder (30) fixated and installed in a rear part of the table (6) while connecting an operative rod (32) in a rear part of the bending unit (12); a stopper (34) installed in a front part of the table (6) and limiting an advance able distance of the bending unit (12); and a stretching unit (14) providing the stretching function by pulling the forming frame (4) in the process of bending the forming frame (4).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a stretching bending apparatus,

The present invention relates to a stretch bending apparatus and a bending method. More particularly, the present invention relates to a stretch bending apparatus and a bending method, and more particularly, to a stretch bending apparatus and a bending method, And to improve the quality of the bending product of the forming frame by eliminating the twisting or springback phenomenon that occurs due to stretching.

In addition, when the bending operation on the forming frame is completed, the clamping member is returned to its original position by the adjusting cylinder to quickly maintain the initial operation ready state, thereby remarkably improving the productivity of bending work on the forming frame .

In addition, by making both ends of the forming frame clamped and then bending the center of the forming frame with the bending mold, the bending state of the left and right distance values can be balanced with respect to the center of the forming frame And more particularly, to a stretch bending apparatus and a bending method.

Generally, a PDP, an LCD, and an LED TV are mounted by bending a frame made of an aluminum material into a curved line. The curved frame is usually formed by a bending machine so as to have a constant curvature.

Such a curved frame is important to accurately bend the center of curvature in the molding process, and it also has technical requirements that the deformed appearance should be attractive while minimizing twisting or springback phenomenon in the molding process.

On the other hand, the conventional technology KR 10-2012-0023884 A 2012.3.14. 1, a bending die having a predetermined curvature is formed and is coupled to a front surface of a fixing die 103, and the fixing die 103 is fixedly mounted on a bending die 101.

The clamping holders 113 are disposed on both sides of the front surface of the bending mold 105 so as to engage and fix the ends of the forming beams 100. The clamping holders 113 are respectively disposed on the operating rod 111 and the bending cylinder 109 is rotatably coupled to a hinge block 107 provided on both sides of the rear of the bending die 101. [

First, both end portions of the forming beam 100 are fixed to the clamping holder 113, and then the bending cylinder 109 is operated. As a result, The forming beam 100 is pushed toward the bending mold 105 while the forming beam 100 is formed in the same curvature as the bending mold 105 in a horizontal state.

After that, when the bending cylinder 100 is operated again and the actuating rod 111 is moved backward, the forming beam 100 is separated from the bending mold 105 and is moved backward to return to its original position.

The conventional technique described above has a problem in that it is difficult to precisely adjust the center of curvature with respect to the forming beam 100 because it is a method in which both sides of the forming beam 100 are simply coupled to the clamping holder 113.

Another problem is that, in the process of forming the formed beam 100, the twist and the springback phenomenon occur together, and therefore, the forming quality of the forming beam 100 is significantly deteriorated.

Another problem is that the two bending cylinders 109 are operated with a minute time difference so that the forming beam 100 becomes inconsistent in the left and right distance values with respect to the center portion, The bending state of the bushing has the disadvantage of imbalance.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and its object is as follows.

First, in the process of bending the forming frame by bending the forming frame, the adjusting cylinder provides the stretching function with the pulling force against both sides of the forming frame, thereby eliminating the twisting or springback phenomenon occurring in the bending process by stretching, And to improve the bending quality of the frame dramatically.

Secondly, when the bending operation on the forming frame is completed, the clamping member is returned to its original position by the adjusting cylinder to rapidly maintain the initial preparation state, thereby remarkably improving the bending work productivity with respect to the forming frame .

Third, by realizing a structure in which the both ends of the forming frame are clamped and then the center of the forming frame is bent by the bending mold, the bending state in which the left and right distance values coincide with each other is realized based on the center of the forming frame I want to.

The present invention firstly includes: a table (6) provided with a vertical rail (8) at the central portion and a lateral rail (10) at both sides of the front end of the vertical rail (8);

A bending portion 12 for bending the forming frame 4 with a predetermined curvature while being slidably coupled to the vertical rail 8 so as to be able to move forward and backward;

A bending cylinder 30 fixed to the rear of the table 6 while connecting the working rod 32 to the back of the bending portion 12;

A stopper 34 provided at a distal end of the table 6 to define a forward distance of the bending portion 12;

A stretching portion 14 which is engaged with the lateral rail 10 so as to be slidable back and forth so as to engage the end portion of the forming frame 4 and to provide a stretching function by pulling in the process of forming the forming frame 4; .

The bending unit 12 is provided with a fixing block 20 to which a front end of the operating rod 32 of the bending cylinder 30 is coupled and a slider 18 slidably coupled to the vertical rail 8 on both sides of the bottom A bending die 22 for forming a curved surface 24 at the front end of the shaping curved surface 24 while being fixed on the supporting plate 16 by a fixing screw and a bending die 22 disposed on the bending die 22, And a cover (26) which is fixed to the frame (16) by a fixing screw.

The stretching unit 14 includes a move plate 40 provided on both sides of a slider 38 slidably coupled to the lateral rail 10 and a hinge plate 40 vertically installed at the upper center of the move plate 40. [ And a clamp member 44 for clamping an end portion of the forming frame 4 while being rotatably coupled to the hinge shaft 42.

The effects of the present invention are as follows.

First, in the course of pushing and bending the forming frame 4 by the bending mold 22, the adjusting cylinder 46 provides the stretching function with the pulling force against both sides of the forming frame 4, The torsion or springback phenomenon occurring in the frame 4 is solved by stretching so that the quality of the bending product of the forming frame 4 is remarkably improved.

Second, when the bending operation is completed with respect to the forming frame 4, the adjusting cylinder 46 returns the clamping member 44 to its original position, The productivity of the bending operation for the bending operation is remarkably improved.

Thirdly, both ends of the forming frame 4 are fixed by the clamp 44 and then the center of the forming frame 4 is pushed and bent by the bending mold 22. Thus, the forming frame 4 has the center The bending state of the forming frame 4 is balanced, since the left and right distance values become the same when bending.

1 is a perspective view of a conventional bending apparatus;
2 is a plan view of a bending apparatus showing an embodiment of the present invention.
3 is a side view of a bending apparatus showing an embodiment of the present invention.
4A, 4B and 4C are perspective views of a bending portion according to an embodiment of the present invention.
5 is a perspective view of a stretching part showing an embodiment of the present invention.
6 is a block diagram of a control unit according to the present invention.
FIGS. 7A, 7B and 7C are state diagrams showing a bending operation process according to the present invention;
8A and 8B are a state diagram showing a stretching process according to the present invention.
9 is a plan view of a bending apparatus showing another embodiment of the present invention.

The bending apparatus 2 according to the present invention bends the forming frame 4 made of aluminum, which is used for a PDP, LCD, LED, TV or the like, with a predetermined curvature, and its structure will be described with reference to FIGS. 2 to 6 as follows.

A vertical rail 8 is provided at a central portion of the bending apparatus 2 (see FIG. 2) while a rectangular table 6 is formed. A horizontal rail 10 is provided at both sides of the front end of the vertical rail 8, The vertical rail 8 is provided with a bending portion 12 for bending the forming frame 4 with a predetermined curvature while moving forward and backward and each of the horizontal rails 10 is provided with a forming frame 4 A stretching portion 14 for providing a stretching function is provided.

4b), the slider 18 is installed on both sides of the bottom surface of the bending unit 12 (see FIG. 4B) while being slidably engaged with the vertical rail 8, And the fixing block 20 is coupled to the center of the upper rear portion.

A bending mold 22 for bending the forming frame 4 with a predetermined curvature is positioned on the support plate 16 and a forming curved surface 24 having a predetermined curvature is formed in a curved shape on the front surface of the bending mold 22. [ And at the same time, the bending mold 22 is fixed to the support plate 16 with a fixing screw.

A cover 26 is disposed on the bending mold 22 and is coupled to the support plate 16 by a fixing screw. A coupling groove 28 is formed on the bottom surface of the cover 26, So that the metal mold 22 is tightly fixed while being inserted.

At this time, both sides of the bending mold 22 extend outwardly from the support plate 16 and the cover 26, and the length of the curved surface 24 of the bending mold 22 is longer than the length of the molding frame 4, It is enough to bend the length.

The front end of the operating rod 32 of the bending cylinder 30 which provides forward and backward force to the bending mold 22 is coupled to the fixed block 20 provided on the receiving plate 16, 2) is fixed to the center rear of the table 6 and a stopper 34 for limiting the advance distance of the bending mold 22 is provided at the center of the front end of the table 6.

The stopper 34 is screwed to the pedestal 36 so as to adjust the end point of the advancing distance of the bending mold 22. The pedestal 36 is formed in a stepped shape and fixed to the tip of the table 6, The position of the stopper 34 varies according to the length of the pedestal 36 so that the curvature of the forming frame 4 bent by the bending metal 22 varies depending on the position of the stopper 34.

In addition, the curvature magnitude of the stopper 34 may vary depending on the state in which the stopper 34 is screwed when the stopper 34 is fastened to the pedestal 36.

As a result, the length of the pedestal 36 and the adjusted state of the stopper 34 are applied when bending a new forming frame 4 having a different curvature.

In addition, since the pedestal 36 installed as described above is a support point at which the center portion of the bending forming frame 4 is located, the forming frame 4 can be bent and placed in a balanced manner.

5) includes a rectangular move plate 40 having a slider 38 slidably coupled to the lateral rail 10 on both sides of the bottom plate, and the move plate 40 (see FIG. A hinge shaft 42 is vertically installed at an upper center of the molding frame 4 and a clamp member 44 for clamping an end of the molding frame 4 is rotatably coupled to the hinge shaft 42.

An adjusting cylinder 46 for providing a pulling force is fixed to the table 6 while the rod end is connected to the rear end of the move plate 40. The adjusting cylinder 46 is fixed to the movable plate 40 The bending operation of the forming frame 4 is completed, and at the same time, the adjusting cylinder 46 returns the movable plate 40 to its original position Make it ready for the first time.

The support block 48 is rotatably coupled to the hinge shaft 42. The support block 48 is provided with a support frame 48 on which a forming frame 4 is placed, A pressing surface 56 is formed on the front surface of the pressing block 54 while the surface 50 and the inclined surface 52 are formed at opposite positions of the inclined surface 52.

At this time, the inclined surface 52 and the pressing surface 56 are formed to be equal to the inclination of both sides of the forming frame 4, and the supporting surface 50 is formed horizontally like the bottom surface of the forming frame 4.

The pressing block 54 is installed in the intermediate portion of the supporting block 48 and is capable of moving forward and backward along the guide rail. And the clamp cylinder 58 is fixed to the rear side of the support block 48. [

The supporting block 48 and the pressing block 54 of the clamp member 44 installed as described above are replaced with new ones every time the forming frame 4 having a different sectional shape is bent.

The bending cylinder 30 (see FIG. 6), the adjusting cylinder 46 and the clamping cylinder 58 installed in the bending apparatus 2 are operated by using hydraulic or pneumatic pressure, Lt; / RTI > command.

Hereinafter, the operation of the present invention will be described.

First, when the forming frame 4 enters the bending apparatus 2 via the unshown conveying apparatus and descends, both ends of the forming frame 4 are pressed against the receiving surface 50 (see FIG. 5) of the receiving block 48 The control unit 60 simultaneously clamps the forming frame 4 to the supporting block 48 by forwarding the operation and stop command to the clamping cylinder 58 to advance the pressing block 54 .

Therefore, both ends of the forming frame 4 are horizontally positioned and clamped to the clamping member 44 as shown in FIG. 7A.

After the bending cylinder 30 is operated and stopped, the bending mold 22 is advanced to the stopper 34 to bend the forming frame 4 with a predetermined curvature after the clamping process.

When the bending cylinder 30 is operated to advance and stop the operation rod 32 by the command of the control unit 60, the foot plate 16 advances along the longitudinal rail 8 and simultaneously the foot plate 16 Is moved together with the cover 26 and the bending mold 22. [

When the bending die 22 advances and reaches the position of the forming frame 4 as described above, the central portion of the forming frame 4 is pressed against the center of the forming curved surface 24 formed on the bending die 22, And the forming frame 4 is continuously bent along both sides from the center portion by the bending metal 22 which continues to advance.

At this time, the bending portion of the forming frame 4 is brought into close contact with the forming curved surface 24 of the bending mold 22, and at the same time, the forming frame 4, which is continuously bent as described above, 24 in the longitudinal direction.

When the bending mold 22 reaches the stopper 34 provided at the front end of the table 6 while advancing and stops, the bending mold 22 is stopped by the forming curved surface 24 formed with a constant curvature in the bending mold 22 Are bent at the same curvature to be in a state as shown in Fig. 7B.

At this time, the left and right distance values of the forming frame 4 formed as described above coincide with the center portion.

After the bending process, when the forming frame 4 is being bent and the clamping members 44 located at both ends are pulled inward, the adjusting cylinder 46 provides a pulling force to the clamping member 44 outward A stretching bending process for the forming frame 4 is performed.

The central portion of the forming frame 4 is pushed forward while closely in contact with the forming curved surface 24 of the bending mold 22 in the process of bending the forming frame 4 as described above, At this time, both sides of the forming frame 4 are curved inwardly in proportion to the degree of bending.

The clamping member 44 pulls the clamping member 44 coupled to both ends of the forming frame 4 inward and the clamping member 44 moves the hinge shaft 42 in the direction of the center of the mold frame 4 in proportion to the degree of bending of the forming frame 4. [ The clamping member 44 and the hinge shaft 42 are pulled by the pulling force of the forming frame 4 so that the move plate 40 that connects the hinge shaft 42 to the upper portion And moves toward the center of the table 6 along the lateral rail 10.

At this time, although the adjusting cylinder 46 holds the movable plate 40 to be advanced, the operating force of the adjusting cylinder 46 is set to be smaller than the force of pulling the both ends while the forming frame 4 is bent, The regulating cylinder 46 pulls the movable plate 40 at a constant pressure.

Therefore, the adjustment cylinder 46 provides a substantially stretching function with respect to the forming frame 4, and the wrinkling phenomenon, which often occurs in the process of bending the forming frame 4 by the stretching function, is eliminated, By the stretching, the forming frame 4 is prevented from being twisted or spring back caused in the bending process.

The pulling force applied to the move plate 40 is canceled and the stretching function is removed. In this state, the pulling force acting on the shaping frame 4 is canceled Bending work may also be carried out.

After the stretching bending process, the bending cylinder 30 is operated and stopped again, and the bending mold 22 is moved back to its original position.

When the bending cylinder 30 is operated and the operation rod 32 is moved back and forth by the command of the control unit 60, the foot plate 16 moves back along the vertical rail 8 and returns to its original position And simultaneously the support plate 16 is moved together with the cover 26 and the bending mold 22. [

When the bending mold 22 is retracted as described above, the shaping curved surface 24 is separated from the shaping frame 4 and the shaping frame 4 is clamped to the clamping member 44 in the bent state, And is supported by the pedestal 36.

At this time, the repulsive force accumulated in the forming frame 4 during the bending process is mostly extinguished due to the stretching function as described above, so that the springback phenomenon of the forming frame 4 is eliminated.

An unclamping process for releasing the clamping force of the forming frame 4 by returning the pressing block 54 back to its original position while the clamping cylinder 58 is actuated and stopped again after the bending mold 22 is returned, .

When the clamping cylinder 58 is unclamped by the command of the controller 60 as described above, the forming frame 4 is in a free state. At this time, both sides and the center of the forming frame 4 are held by the supporting block 48, And the pedestal 36 are supported. Therefore, the forming frame 4 is placed while maintaining a balance even in the free state.

After this, the transfer device (not shown) lifts the forming frame 4 to move to the cutting process, which is the next working process, and then the forming frame 4 moves to the carrying out part.

When the forming frame 4 is disengaged from the supporting block 48 after the unclamping process, the clamping member 44 is moved back to its original position by transmitting an operation and stop command to the adjusting cylinder 46 again The process is performed so as to be in the same operation ready state as the first.

The clamping member 44 provided on the move plate 40 is returned to its original position by moving the move plate 40 backward while the adjusting cylinder 46 is operated and stopped by the command of the controller 60 And returns to its original position.

After that, the operator rotates the clamp member 44, which is rotating in the hinge shaft 42, in the reverse direction so as to be in a vertical state with respect to the transverse rail 10 as in the first case. At this time, The clamping member 44 may be rotated by the hinge shaft 42 using an automatic adjustment method.

Since the clamping member 44 is quickly returned to the original working position by the adjusting cylinder 46 as described above, the bending operation for the forming frame 4 can be rapidly performed, thereby improving the productivity.

In addition, the clamp member 44 is set so as to match the left and right distances from the center of the table 6, so that the working center of the forming frame 4 to be shaped as described above can be quickly and easily set Work convenience is improved.

At this time, if the length of the forming frame 4 is long or short, the position of the clamping member 44 is adjusted through the adjusting cylinder 46 and then set.

9, the bending portion 12 forward and backward by the bending cylinder 30 is mounted on the vertical rail (not shown), as described above, on the table 6, A stopper 34 is attached to the pedestal 36 at the front end of the vertical rail 8 and a lateral rail 10 is installed at both sides of the front end of the vertical rail 8 .

The movable plate 44 is slidably coupled to the transverse rail 10 and the clamping member 44 for clamping the forming frame 4 is rotatably supported by the hinge shaft 42 And a stopper 53 for preventing dislocation is provided at the rear of the transverse rail 10.

A movable pin 47 is fixed to the rear end of the movable plate 40. The movable pin 47 is fixed to the rear end of the movable plate 10 by welding to the table 6 with the supporting plate 55 provided with the fixing pin 51, And both sides of the spring 49 are hooked on the moving pin 47 and the fixing pin 51. [

Hereinafter, the operation of another embodiment of the present invention will be described.

First, as described above, when the bending cylinder 30 (see Fig. 9) advances the bending portion 12 to bend the forming frame 4, the forming frame 4 is bent and the clamping members 14 and the clamp member 14 is advanced along the transverse rail 10 together with the move plate 40. As a result,

At this time, the move plate 40 advances while opposing the elastic force of the spring 47.

Since the spring 49 does not exhibit the stretching function in the process of bending the molding frame 4 as described above, the molding frame 4 is formed by the non-stretch bending.

Thereafter, when the bending forming frame 4 is separated from the clamping member 44, the spring 49 pulls the move plate 40 with repulsive resilient force and returns to its original position together with the clamping member 44 And the movable plate 40 is stopped by the stopper 53 in a set position after being reversed. After that, the worker repeatedly performs the same operation process as the first.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, And various modifications and changes may be made without departing from the scope of the present invention.

2: Bending device 4: Molding frame
6: Table 8: Vertical rail
10: transverse rail 12: bending part
14: stretching part 16:
18, 38: slider 20: fixed block
22: Bending mold 24: Molding surface
26: cover 28: engaging groove
30: bending cylinder 32: working rod
34: stopper 36: pedestal
40: move plate 42: hinge shaft
44: Clamp member 46: Adjusting cylinder
48: Support block 50: Support surface
52: inclined surface 54: pressurized block
56: pressure face 58: clamp cylinder
60:

Claims (11)

delete delete delete delete A table 6 for installing the vertical rail 8 and the horizontal rail 10;
A bending portion 12 coupled to the vertical rail 8 to bend the forming frame 4 to the bending mold 22;
A bending cylinder 30 fixed to the rear of the table 6 while connecting the working rod 32 to the bending part 12;
A stopper 34 provided at a distal end of the table 6 to define a forward distance of the bending portion 12;
And a stretching part (14) slidably coupled to the transverse rail (10) and providing a stretching function by pulling in a process of forming the forming frame (4)
The stretching portion 14
A movable plate 40 provided on both sides of the bottom surface of the slider 38 slidably engaged with the lateral rail 10,
A hinge shaft 42 vertically installed at an upper center of the move plate 40,
A clamp member 44 rotatably coupled to the hinge shaft 42 and clamping an end of the forming frame 4,
And an adjusting cylinder (46) fixed to the table (6) while coupling the rod end to the rear end of the move plate (40). 6. The method of claim 5,
When the forming frame 4 is bent while the bending mold 22 advances, the both ends of the forming frame 4 are curved inward to be curved and the clamping member 44 is pulled and advanced together with the move plate 40 And,
The clamping member 44 rotates at the hinge axis 42 in proportion to the degree of curvature of the forming frame 4 to be bent,
The adjustment cylinder 46 provides a pulling force on the move plate 40 so that the forming frame 4 is stretch-bent while being resiliently opened,
Wherein the adjusting cylinder (46) returns the move plate (40) to its original position when the bending operation with respect to the forming frame (4) is completed, so that the adjusting cylinder (46) is ready for operation as originally.







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KR1020150111765A 2015-08-07 2015-08-07 Bending method and stretch bending device KR101658339B1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107876598A (en) * 2017-12-12 2018-04-06 浙江农林大学 A kind of plate stretch bending experimental provision and experimental method
CN108580663A (en) * 2018-05-03 2018-09-28 秦皇岛方华埃西姆机械有限公司 stretch bending device and method
CN110000993A (en) * 2019-03-29 2019-07-12 秦皇岛方华埃西姆机械有限公司 A kind of device connecing the medium-sized intracavitary portion's integrated flexure of angle mold
KR102010790B1 (en) 2019-01-03 2019-08-14 나인찬 Multi bending apparatus
CN110170555A (en) * 2018-10-09 2019-08-27 襄阳忠良工程机械有限责任公司 Mucking machine adjustable shelf crossbeam bending tool
KR102166958B1 (en) * 2020-06-16 2020-10-16 주식회사 티에스티 Light weight aluminum bumper beam forming apparatus applying cam structure and active control system
CN117123659A (en) * 2023-10-26 2023-11-28 天津柯莱非特科技有限公司 Anti-collision beam stretch bending equipment
KR20240027998A (en) 2022-08-24 2024-03-05 함강호 Stretching bending machine that can improve bending angle and control precisely
KR102643828B1 (en) * 2023-05-16 2024-03-28 임재석 A stretch bending device

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Publication number Priority date Publication date Assignee Title
JP2000140949A (en) * 1998-11-12 2000-05-23 Kobe Steel Ltd Method for bending aluminum alloy shape
KR20070115453A (en) * 2006-06-02 2007-12-06 현대중공업 주식회사 Coming plate bending jig
KR101181662B1 (en) * 2009-12-29 2012-09-19 주식회사 성우하이텍 Stretch bending device having function welding
KR101279798B1 (en) * 2011-04-07 2013-06-28 주식회사 성우하이텍 Stretch bending device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000140949A (en) * 1998-11-12 2000-05-23 Kobe Steel Ltd Method for bending aluminum alloy shape
KR20070115453A (en) * 2006-06-02 2007-12-06 현대중공업 주식회사 Coming plate bending jig
KR101181662B1 (en) * 2009-12-29 2012-09-19 주식회사 성우하이텍 Stretch bending device having function welding
KR101279798B1 (en) * 2011-04-07 2013-06-28 주식회사 성우하이텍 Stretch bending device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107876598A (en) * 2017-12-12 2018-04-06 浙江农林大学 A kind of plate stretch bending experimental provision and experimental method
CN108580663A (en) * 2018-05-03 2018-09-28 秦皇岛方华埃西姆机械有限公司 stretch bending device and method
CN110170555A (en) * 2018-10-09 2019-08-27 襄阳忠良工程机械有限责任公司 Mucking machine adjustable shelf crossbeam bending tool
KR102010790B1 (en) 2019-01-03 2019-08-14 나인찬 Multi bending apparatus
CN110000993A (en) * 2019-03-29 2019-07-12 秦皇岛方华埃西姆机械有限公司 A kind of device connecing the medium-sized intracavitary portion's integrated flexure of angle mold
CN110000993B (en) * 2019-03-29 2024-03-08 方华智能装备(秦皇岛)股份有限公司 Device for integrating and bending inside cavity in corner connecting die
KR102166958B1 (en) * 2020-06-16 2020-10-16 주식회사 티에스티 Light weight aluminum bumper beam forming apparatus applying cam structure and active control system
KR20240027998A (en) 2022-08-24 2024-03-05 함강호 Stretching bending machine that can improve bending angle and control precisely
KR102643828B1 (en) * 2023-05-16 2024-03-28 임재석 A stretch bending device
CN117123659A (en) * 2023-10-26 2023-11-28 天津柯莱非特科技有限公司 Anti-collision beam stretch bending equipment
CN117123659B (en) * 2023-10-26 2024-01-05 天津柯莱非特科技有限公司 Anti-collision beam stretch bending equipment

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