KR101029940B1 - A correcting device for bending of a board - Google Patents

A correcting device for bending of a board Download PDF

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Publication number
KR101029940B1
KR101029940B1 KR1020100115530A KR20100115530A KR101029940B1 KR 101029940 B1 KR101029940 B1 KR 101029940B1 KR 1020100115530 A KR1020100115530 A KR 1020100115530A KR 20100115530 A KR20100115530 A KR 20100115530A KR 101029940 B1 KR101029940 B1 KR 101029940B1
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KR
South Korea
Prior art keywords
plate
pressing
welding
base
hole
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Application number
KR1020100115530A
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Korean (ko)
Inventor
서정엽
Original Assignee
(주)에스엔씨
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Priority to KR1020100115530A priority Critical patent/KR101029940B1/en
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Publication of KR101029940B1 publication Critical patent/KR101029940B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06Removing local distortions
    • B21D1/10Removing local distortions of specific articles made from sheet metal, e.g. mudguards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021Deforming sheet bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups

Abstract

The present invention is a device for correcting the bending of the plate 1 generated when welding the reinforcement (2) on one surface of the plate (1), the correction device is a plate (1) is welded to the reinforcement (2) The base 10 disposed on the upper surface, the clamp 20 for fixing the edge of the plate 1, and protruding to the upper side of the base 10, the through-hole 35 is formed in the vertical direction and move horizontally The frame 30 is provided with a horizontal moving block 34 to be moved, and the lifting unit 40 to be elevated along the through hole 35 of the horizontal moving block 34 of the frame 30, and the lifting unit 40 And a pressurizing part 50 provided at the bottom of the pressurizing member 50 to pressurize the plate 1, and the pressurizing part 50 includes an air booster 51 for generating hydraulic pressure by compressed air supplied from the outside, and the air. Provided by the plate bending correction device by welding, characterized in that the cylinder 52 for pressing the plate 1 by the hydraulic pressure from the booster (51). do.

Description

A sheet correcting device for bending by welding {A correcting device for bending of a board}

The present invention relates to a sheet bending correction device by welding, and more particularly, it can replace expensive equipment and reduce the energy consumption to reduce the size while reducing the cost, as well as to weld more precisely It relates to a sheet bending correction device.

In general, a reinforcing member is welded to a steel sheet used for fabricating a frame used in a bridge, a ship, or other apparatus, and a deformation of bending both sides of the welded portion of the steel sheet toward the welded portion is caused by the welding heat. Accordingly, due to the bent steel sheet, there is a problem that bonding with other steel sheets is very difficult.

In order to solve the above problems, a device for unfolding the curved steel sheet has been developed, and such a device is for unrolling a steel sheet by pressurizing the steel sheet using a hydraulic cylinder. In order to flatten the curved steel plate, a relatively large power is required and a large hydraulic cylinder is required. Therefore, the size of the apparatus is not only large but also the equipment is expensive. In addition, since a large power is used, there is a problem that the energy consumption increases. In addition, when the hydraulic cylinder pressurizes the curved steel sheet, a clamp is provided to fix the edge of the steel sheet. The clamp is formed of a hydraulic cylinder separate from the hydraulic cylinder, and the clamp presses the steel sheet from the top to the bottom. do. However, since the clamp is also relatively large in size, the overall size of the apparatus is not only larger, but the space portion on which the steel sheet is placed is reduced, which makes it difficult to arrange the steel sheet in the apparatus.

The present invention is to solve the problems as described above, the object of the present invention is to expand the curved plate with a relatively small power instead of a large hydraulic cylinder that requires a large power to reduce the power consumption, and also to improve the overall size of the device It is to provide a plate bending correction device by welding that can reduce the smoothness of the plate by improving the efficiency of the work, and to correct the bending of the plate more precisely.

According to a feature of the present invention, in the device for correcting the bending of the plate material 1 generated when welding the reinforcing material 2 to one surface of the plate material,

The calibration device includes a base 10 on which the plate 1 to which the reinforcing material 2 is welded is disposed, and a frame 30 protruding upward of the base 10, and the plate 1 of the base material 1. A clamp 20 for fixing an edge portion, a lifting passage or a through hole 35 is formed in a central portion thereof, and a horizontal moving block 34 horizontally moved from the frame 30 and the horizontal moving block 34. And an elevating unit 40 which is elevated along an elevating passage or through hole 35 of the elevating unit 40, and an urging unit 50 provided at the lower end of the elevating unit 40 to press the plate 1. 50 is composed of an air booster 51 for generating hydraulic pressure by the compressed air supplied from the outside, and a cylinder 52 for pressurizing the plate 1 by the hydraulic pressure from the air booster 51, characterized in that Provided is a plate bending correction device by welding.

According to another feature of the invention, the clamp 20 is provided on the upper side of the base (1) and the vertical projection 21, the support plate 22 formed horizontally protrudes forward, and the vertical projection 21 Rotating cam 24 is pivotally coupled to the hinge portion 23 formed at the lower side of the support plate 22 and the inclined surface 25 is formed on the upper surface thereof, and horizontally along the support plate 22 by the motor 26. It is provided with a plate bending correction device by welding, characterized in that it comprises a wedge piece 28 for pressing the inclined surface 25 of the rotating cam 24 downward while reciprocating.

According to another feature of the invention, the lifting unit 40 is provided with a piston 43 which is lifted by the drive motor, and extending from the upper end of the pressing unit 50 is horizontally moved in accordance with the lifting of the piston 43 And a slider 41 that is elevated along the through hole 35 of the block 34, and a locking protrusion 42 or a locking groove protruding laterally is formed at an upper end of the slider 41, and the horizontal moving block In the periphery of the through hole 35 of the 34, the locking projection 42 or the locking groove 36 is provided with a locking groove 36 or a locking projection which is locked with the locking groove is provided by welding.

According to another feature of the invention, the base 10 is provided with a guide rail 12 formed in a horizontal direction, and reciprocating along the guide rail 12 to measure the flatness of the plate 1 Receiving a signal from the moving sensor 60 and the moving sensor 60 to control the variables including the pressing time or the pressing force of the pressing unit 50 if the predetermined value is less than a predetermined value in comparison with the data about the flatness set in advance. Provided is a plate bending correction apparatus by welding, characterized in that the control unit is further provided.

As described above, according to the present invention, after the pressing unit 50 is placed close to the plate 1 placed on the base 10 through the lifting unit 40, the cylinder is formed by the hydraulic pressure generated by the air booster 51. By configuring 52 to pressurize the plate 1, the warpage of the plate 1 can be corrected even with a small horsepower compared to using a hydraulic cylinder with a large number of horsepower, thereby reducing the size of the apparatus as a whole and reducing power consumption. Of course, there is an effect that can reduce the manufacturing cost of the device. Then, the clamp 20 for fixing the edge of the plate 1 is constituted by the rotation cam 24 which is pivotally pushed downward by the wedge piece 28 which is horizontally moved, thereby using a hydraulic cylinder as a conventional clamp. Compared to the above, the cost can be reduced, but the size can be reduced, so that the plate 1 can be smoothly moved in and out. At this time, when clamping with a conventional hydraulic cylinder, since the pressing force of the hydraulic cylinder and the repulsive force of the sheet material 1 are opposite to each other, a large power is required for the hydraulic cylinder, whereas in the present invention, the pressing force of the wedge piece 28 is increased. Since it is orthogonal to the repulsive force of the plate 1, the same clamping is possible with a small power compared with the conventional.

On the other hand, the locking projection 42 is formed on the slider 41 constituting the lifting unit 40, the locking groove 36 is formed in the periphery of the through hole 35 formed in the horizontal moving block 34, When the slider 41 is lowered along the through hole 35, the locking protrusion 42 is inserted into and fixed to the locking groove 36, and thus the lifting unit 40 is fixed in the lowered state, thereby pressing the pressure unit 50. The repulsive force of the plate 1 generated when the cylinder 52 of the pressurizes the plate 1 is attenuated by the locking of the elevating portion 40, so that a greater power is applied to the cylinder 52 for pressurizing the plate 1. This is not required, there is an effect that can lower the power consumption. In addition, the base 10 includes a moving sensor 60 that measures the flatness of the plate 1 while reciprocating around the plate 1, and compares the data received from the moving sensor 60 with the set basic data. By providing a control unit for adjusting the pressing force, the pressing time, and the like of the pressing unit 50 until the bending of the plate 1 is completely corrected, the bending of the plate 1 can be corrected more precisely, so that the processing precision There is an effect to be improved.

1 is a side view showing an embodiment of a plate bending correction apparatus by welding according to the present invention
2 is a first operating state diagram of the embodiment
3 is a front view of the embodiment
4 is a second operating state diagram of the embodiment;
5 is a plan view showing a state in which the slider of the lifting unit is locked to the horizontal moving block in the embodiment;

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2 are a side view and a first operating state diagram showing an embodiment of a plate bending correction apparatus by welding according to the present invention, Figures 3 and 4 are a front view and a second operating state diagram of the embodiment, 5 is a plan view showing a state in which the slider of the lifting unit is locked to the horizontal moving block in the above embodiment. 3 and 4 omit the illustration of the clamp in consideration of complicated drawings.

As shown, the plate bending correction apparatus by welding according to an embodiment of the present invention as a device for correcting the bending of the plate 1 generated when welding the reinforcing material (2) on one surface of the plate (1), The base 10 on which the reinforcing material 2 is welded is arranged on the upper surface, the frame 30 protruding upward of the base 10, and the edge of the plate 1 is fixed. Through-hole 35 is formed in the clamp 20, the vertical portion in the vertical direction and the horizontal movement block 34 which is horizontally moved in the frame 30, and the through hole 35 of the horizontal movement block 34 It comprises a lifting part 40 which is raised and lowered along with, and the press part 50 which is provided in the lower end of this lifting part 40, and pressurizes the board | plate material 1. As shown in FIG.

The base 10 has a support 11 on which the plate 1 on which the reinforcing material 2 is welded is raised, and a guide rail 12 is provided on the side of the base 10. The moving sensor 60 reciprocates along this guide rail 12. The moving sensor 60 detects the flatness or the degree of warpage of the plate member 1 through preset data. In addition, when the flatness does not reach a predetermined value, the control unit (not shown) is configured to control various variables such as pressing time and pressing force of the pressing unit 50 to correct the bending of the plate 1, which will be described later.

The frame 30 horizontally connects an upper end of the pair of vertical portions 31 protruding upward from the side of the base 10 and the upper ends of the vertical portions 31, and is provided on the upper side of the base 10. It consists of a part (32). The horizontal movement block 34 has a lifting passage or a through hole 35 is formed in the center, and the plurality of locking grooves 36 are circumferentially formed in the upper circumference of the lifting passage or the through hole 35 as shown in FIG. 5. Formed along the direction. 3 and 4, the horizontal moving block 34 is installed to be movable horizontally in the frame 30, and moves along the rail 33 or by a cylinder by a motor not shown. It may be configured to. And, although not shown, the base 10 is provided with a conveying means such as a roller, the plate 1 may be configured to be transported by the conveying means to be placed on the support 11 of the base 10.

1 and 2, the clamp 20 includes a vertical protrusion 21 vertically protruding upward of the base 10, and a rotation cam 24 rotatably coupled to the vertical protrusion 21. And a wedge piece 28 for pressing the distal end portion of the pivoting cam 24 downward. The upper end of the vertical protrusion 21 is provided with a support plate 22 formed horizontally, the hinge portion 23 is formed below the support plate 22. At this time, the support plate 22 is formed to protrude forward than the hinge portion (23). In addition, the rotation cam 24 is formed in an approximately triangular shape, and a vertex of one side thereof is rotatably coupled to the hinge portion 23 of the vertical protrusion 21. At this time, the upper surface of the rotating cam 24 is configured to form an inclined surface 25 inclined downward toward the hinge portion (23).

On the other hand, the wedge piece 28 is the upper surface is moved forward and backward along the lower surface of the support plate 22, the lower surface is formed to be inclined so that the surface contact with the inclined surface 25 of the rotating cam 24. At this time, the wedge piece 28 is configured to be reciprocally moved horizontally by being driven to the drive means 27 such as the motor 26 and the belt. When the wedge piece 28 moves to the front end of the support plate 22, the wedge piece 28 presses the pivoting cam 24 downward so that the pivoting cam 24 pressurizes and fixes the plate 1, and the wedge piece When the 28 moves to the rear end of the support plate 22, the pressurization of the rotational cam 24, which has been pressed downward, is released, and the pressing fixation of the plate member 1 by the rotational cam 24 is released.

The lifting unit 40 is to be moved up and down along the lifting passage of the horizontal moving block 34 or through the through hole 36, the slider 41 extending upward from the upper end of the pressing unit 50, It is composed of a piston 43 coupled to the slider 41 and lifted by a drive motor (not shown). The slider 41 is lifted together while the piston 43 is lifted and driven by the drive motor, thereby providing a slider 41. The pressure portion 50 provided at the lower end of the elevating. On the other hand, as shown in Figure 5, the upper side of the slider 41 is formed with a locking projection 42 protruding laterally, the locking groove 36 formed in the lifting passage or the through hole 35 of the horizontal movable block (34) ) Is inserted. That is, as shown in (a) and (b) of FIG. 5, when the rotation is about the rotation axis of the slider 41, the locking protrusion 42 of the slider 41 is caught by the locking groove of the horizontal moving block 34. do. Therefore, when the lifting unit 40 is lowered, the locking protrusion 42 of the slider 41 is inserted into and fixed in the lifting groove of the horizontal moving block 34 or the locking groove 36 formed at the periphery of the through hole 35. The repulsive force generated when the pressing unit 50 presses the plate 1 may be minimized. Accordingly, since the repulsive force does not require more power to the pressurizing portion 40 to be described later, there is no device capable of minimizing such repulsive force when pressurizing using a conventional hydraulic cylinder. Compared to what was required, it is possible to correct the warpage of the plate 1 with a considerably small power, thereby reducing costs and reducing energy consumption, and the size of the device is smaller, so there is an advantage of easier installation.

The pressing unit 50 presses the plate 1 placed on the base 10 while being lifted by the lifting unit 40, and is composed of an air booster 51 and a cylinder 52. The air booster 51 is provided in the frame 30 and is a device for generating hydraulic pressure by compressed air, and supplies the generated hydraulic pressure to the cylinder 52. The cylinder 52 pressurizes the plate 1 by the hydraulic pressure supplied from the air booster 51. On the other hand, the cylinder 52 is provided at the lower end of the slider 41, is integrally formed with the slider 41, and is moved up and down as the slider 41 is raised as described above.

On the other hand, there is provided a control unit, not shown, which is connected to the moving sensor 60 reciprocating along the guide rail 12 of the base 10 to control the mechanism for pressing the plate 1. The control unit receives the numerical data signal for the flatness of the plate 1 detected by the moving sensor 60 and compares it with the preset basic data, and if the received data does not exceed the numerical value of the basic data, Since the flatness of the plate 1, which is required in the post-assembly process such as 1), may not be satisfied, various variables such as the pressing time and the pressing force of the pressing unit 50 are controlled. For example, the control unit may control the air booster 51 to generate a larger hydraulic pressure, and thus the pressing unit 50 may press the plate 1 by the larger hydraulic pressure. On the other hand, the control unit controls the air booster 51, it may be configured to control the pressurization time of the cylinder 52 by a timer provided separately. In addition, the control unit grasps the point where the cylinder 52 presses the plate 1 and the like and presses the plate 1 more uniformly, so that the flatness of the plate 1 reaches a more various level until it reaches a certain value. It can be configured to control the variable, there is an advantage that the calibration of the curved plate 1 can be made more precise.

Referring to the operation state of the plate bending correction apparatus by welding according to the present invention configured as described above are as follows.

First, the wedge piece 28 of the clamp 20 is rotated by the drive of the motor 26 in a state where the plate 1 on which the reinforcing material 2 is welded is arranged on the support 11 of the base 10. The presser 24 is pushed downward, and the rotation cam 24 presses the edge of the plate 1 so that the plate 1 is fixed in position. At this time, the horizontal movement block 34 is horizontally moved in the frame 30 so that the cylinder 52 of the pressing unit 50 is disposed at a position corresponding to the pressing point of the plate 1. Then, in a state in which the cylinder 52 is disposed above the pressing point of the plate 1, as shown in FIG. 5, the lifting protrusion 40 is lowered by the driving motor while the locking protrusion 42 formed on the slider 41. ) Is inserted into and fixed in the lifting passage of the horizontal moving block 34 or the locking groove 36 formed in the through hole 35, and the lifting unit 40 is fixed in the lowered state, and the cylinder of the pressing unit 50 ( 52 is disposed in close proximity to the plate 1.

In addition, the cylinder 52 pressurizes the plate 1 by the hydraulic pressure generated by the air booster 51. At this time, in consideration of the elastic restoring force of the plate 1, it is preferable that the pressing unit 50 presses the plate 1 about 10 to 15 seconds. On the other hand, when the pressure of the plate 1 by the cylinder 52 is released, the moving sensor 60 reciprocates along the guide rail 12 to measure the flatness of the plate 1 to send a signal to the controller. do. If the flatness of the plate 1 does not reach a predetermined value in the received signal, the controller controls various variables such as the pressing force and the pressurization time of the pressurizing unit 50, so that the flatness of the plate 1 may reach a certain value. The pressurization process of the cylinder 52 is continued until it presses. That is, the above process through the moving sensor 60 and the control unit is repeatedly performed until the flatness of the plate 1 reaches a predetermined value. Therefore, there is an advantage that the degree of bending of the plate 1 can be more precisely corrected.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

Claims (4)

  1. In the device for correcting the bending of the plate 1 generated when welding the reinforcing material (2) on one surface of the plate (1), the correction device is a plate (1) welded to the reinforcing material 2 is disposed on the upper surface The base 10, the clamp 20 for fixing the edge of the plate 1, the base 10 is provided with a protruding upwards and the through hole 35 is formed in the vertical direction, the horizontal movement is moved horizontally The frame 30 provided with the block 34, the elevating portion 40 which is elevated along the through hole 35 of the horizontal moving block 34 of the frame 30, and the lower portion of the elevating portion 40 It is provided in the pressurizing portion 50 for pressing the plate 1, the pressurizing portion 50 is an air booster 51 for generating hydraulic pressure by the compressed air supplied from the outside, and the air booster 51 It is made of a cylinder 52 for pressing the plate (1) by hydraulic pressure from), the clamp 20 is provided on the upper side of the base (1) and horizontally on the top The formed support plate 22 is rotatably coupled vertically to the vertical protrusion 21 protruding forward and the hinge portion 23 formed at the lower side of the support plate 22 of the vertical protrusion 21 and inclined surface 25 on the upper surface. And a wedge piece 28 for pressing the inclined surface 25 of the pivoting cam 24 downward while reciprocating horizontally along the support plate 22 by the rotational cam 24 and the motor 26. Plate bending correction device by welding, characterized in that the.


  2. delete
  3. According to claim 1, wherein the lifting unit 40 is provided with a drive motor, a piston 43 which is lifted by the drive motor, and extends from the upper end of the pressing unit 50 to the lifting of the piston 43 And a slider 41 which is elevated along the through hole 35 of the horizontal movement block 34 of the frame 30, and the locking protrusion 42 or the locking groove protrudes laterally at the upper end of the slider 41. Is formed, and the upper end of the through hole 35, the locking projection 42, or the locking groove 36 and the locking projection which is locked with the locking groove, characterized in that the plate bending correction device by welding, characterized in that formed.
  4. According to claim 1 or 3, wherein the base 10 is provided with a guide rail 12 formed in the horizontal direction, reciprocating along the guide rail 12 to measure the flatness of the plate 1 To control the variables such as the pressing time and the pressing force of the pressing unit 50, if the moving sensor 60 and the moving sensor 60 receives a signal from the moving sensor 60 and is less than a predetermined value in comparison with the data about a predetermined flatness. Plate bending correction device by welding, characterized in that the control unit is further provided.
KR1020100115530A 2010-11-19 2010-11-19 A correcting device for bending of a board KR101029940B1 (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350523A (en) * 2011-07-06 2012-02-15 常州宝菱重工机械有限公司 Method for eliminating twist deformation of rolling mill heavy parts
CN102500656A (en) * 2011-10-28 2012-06-20 苏州金牛精密机械有限公司 Shaping jig
CN105006392A (en) * 2015-07-24 2015-10-28 宁波耀华电气科技有限责任公司 Automatic polishing trimmer for static contacts
CN105057399A (en) * 2015-07-24 2015-11-18 宁波耀华电气科技有限责任公司 Fixed contact shaping mechanism
KR101603494B1 (en) * 2015-06-05 2016-03-16 주식회사 삼광산업 Scaffolding braces
CN105665480A (en) * 2016-03-17 2016-06-15 广西科技大学 Automatic correction device and correction method for moving arm
KR20170014185A (en) * 2015-07-29 2017-02-08 전영완 Sink bowl welding portion smoothing machine
US9731337B2 (en) 2013-07-16 2017-08-15 Hyundai Motor Company Part correcting device for automobile part
KR20200041700A (en) * 2018-10-12 2020-04-22 주식회사 제이티인스트루먼트 Apparatus for correcting warpage of thin plate
KR102124971B1 (en) * 2018-10-12 2020-06-22 주식회사 제이티인스트루먼트 Apparatus for correcting warpage of thin plate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001252724A (en) * 2000-03-08 2001-09-18 Kyowa Machine Kk Clamping apparatus in manipulator for plate bending machine
KR20060128610A (en) * 2003-10-06 2006-12-14 기쿠치 프레스 고교 가부시키가이샤 Clamp device and clamp method for heat-treated article
KR100779463B1 (en) 2007-03-30 2007-11-26 서훈산업유한회사 Trimming device of a gusset plate corner for vessel
KR200447876Y1 (en) 2008-03-17 2010-02-26 주식회사 제일테크노쎌 Plate leveller for hard disk drive case

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001252724A (en) * 2000-03-08 2001-09-18 Kyowa Machine Kk Clamping apparatus in manipulator for plate bending machine
KR20060128610A (en) * 2003-10-06 2006-12-14 기쿠치 프레스 고교 가부시키가이샤 Clamp device and clamp method for heat-treated article
KR100779463B1 (en) 2007-03-30 2007-11-26 서훈산업유한회사 Trimming device of a gusset plate corner for vessel
KR200447876Y1 (en) 2008-03-17 2010-02-26 주식회사 제일테크노쎌 Plate leveller for hard disk drive case

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350523A (en) * 2011-07-06 2012-02-15 常州宝菱重工机械有限公司 Method for eliminating twist deformation of rolling mill heavy parts
CN102500656A (en) * 2011-10-28 2012-06-20 苏州金牛精密机械有限公司 Shaping jig
US9731337B2 (en) 2013-07-16 2017-08-15 Hyundai Motor Company Part correcting device for automobile part
KR101603494B1 (en) * 2015-06-05 2016-03-16 주식회사 삼광산업 Scaffolding braces
CN105057399A (en) * 2015-07-24 2015-11-18 宁波耀华电气科技有限责任公司 Fixed contact shaping mechanism
CN105006392A (en) * 2015-07-24 2015-10-28 宁波耀华电气科技有限责任公司 Automatic polishing trimmer for static contacts
KR20170014185A (en) * 2015-07-29 2017-02-08 전영완 Sink bowl welding portion smoothing machine
KR101715370B1 (en) * 2015-07-29 2017-03-10 전영완 Sink bowl welding portion smoothing machine
CN105665480A (en) * 2016-03-17 2016-06-15 广西科技大学 Automatic correction device and correction method for moving arm
KR20200041700A (en) * 2018-10-12 2020-04-22 주식회사 제이티인스트루먼트 Apparatus for correcting warpage of thin plate
KR102124971B1 (en) * 2018-10-12 2020-06-22 주식회사 제이티인스트루먼트 Apparatus for correcting warpage of thin plate

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