KR20170087680A - Processing errors adjustable bending mold punch die - Google Patents

Processing errors adjustable bending mold punch die Download PDF

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Publication number
KR20170087680A
KR20170087680A KR1020160007550A KR20160007550A KR20170087680A KR 20170087680 A KR20170087680 A KR 20170087680A KR 1020160007550 A KR1020160007550 A KR 1020160007550A KR 20160007550 A KR20160007550 A KR 20160007550A KR 20170087680 A KR20170087680 A KR 20170087680A
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KR
South Korea
Prior art keywords
die
bending
processing
machining
adjusting
Prior art date
Application number
KR1020160007550A
Other languages
Korean (ko)
Inventor
김윤형
Original Assignee
주식회사 을지특수정밀
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 을지특수정밀 filed Critical 주식회사 을지특수정밀
Priority to KR1020160007550A priority Critical patent/KR20170087680A/en
Publication of KR20170087680A publication Critical patent/KR20170087680A/en

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    • 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
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • 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
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209Tools therefor
    • 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
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209Tools therefor
    • B21D5/0227Length adjustment of the die
    • 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
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0281Workpiece supporting devices

Abstract

The present invention relates to a bending die pinch die capable of adjusting a machining error to compensate for a machining error by adjusting a bending angle of the die when a bending angle is not constant due to a variation in die interval,
A bending blade is formed on the upper mold and a processing die corresponding to the bending blade is mounted on the die holder. The bending die for bending the steel plate is combined with a separate processing die, In constructing the bending die pinch die,
Wherein a pair of processing dies each having an inclined mounting groove formed on an upper surface of the die holder and having guide rails formed at both ends thereof and having inclined machining surfaces formed on both guide rails are formed in the mounting grooves so that the machined surfaces face each other And a bending die pinch die capable of adjusting the machining error so as to adjust the interval in which the machined surfaces of the machining die face each other is configured so that the interval of the die is deformed by abrasion or thermal deformation due to friction for a long time, When the defects occur due to the unevenness of the angle, the bending angle of the die is adjusted to compensate the machining error to adjust the machining error in real time, thereby enabling high-quality machining.

Description

[0001] The present invention relates to a bending die having an adjustable bending die punch die,
The present invention relates to a bending die pinch die capable of adjusting a machining error, and more particularly, to a bending die pinch die capable of adjusting a machining error, and more particularly, The present invention relates to a bending die pinch die capable of adjusting a machining error to compensate a machining error by adjusting an angle.
Generally, bending is a method of bending a workpiece in a desired shape by applying a force to reach a firing zone. The bending process may be carried out in a hot state or in a cold state, but the thin plate is subjected to cold working and the thick plate is subjected to hot working. The bending method includes a bending method using a press brake to punch and die, a case using a folding machine or a general press, and a case using a roller. Among them, press brake is a bending-only machine used to bend a long plate, and the size of the machine is expressed by the total width and the thickness and tonnage of the plate that can be bent. Cranks, eccentrics, and hydraulic systems are widely used, depending on the driving method of the ram, such as presses. They can be used for construction, metal products, electric appliances, lighting devices, communication devices, vehicles, ships, and various other containers The range is wide. The friction brake is often used for the press brake, and the length of the stroke is adjusted by an auxiliary electric motor for stroke adjustment. The advantage of press brake is that it can work on various materials at the same time because the work surface is long. Because of the strong pressure, the degree of bending is good. If you change the upper and lower molds, you can apply various applications. In case of hydraulic type, it is possible to adjust the stroke and it is suitable for mass production.
In Patent Application No. 10-1993-0007906 (May 05, 1993), when bending an iron plate mounted on a press, it is possible to bend a portion that is not bent while preventing deformation of a bent portion that is bent first, The present invention relates to a multi-purpose bending mold apparatus capable of easily providing a bending punch and a bending die according to the purpose of use, thereby improving workability and maximizing productivity, and relates to a multi-purpose bending die apparatus comprising an upper mold and a lower mold In the bending die mold, the upper mold is fixed to the guide plate by a punch holder having a fixing hole and a step formed on one side and lower side, wherein a plurality of fixing members are coupled to the fixing hole, and a punch firewood A plurality of bending punches having grooves and an inclined guide hole formed on both of the bending punches, a gripping end is formed at the tip end, Wherein a guide groove and a fixing groove are formed in an upper end of the die holder, and the guide groove is formed in a position opposite to the punch mounting groove of the bending punch Wherein the lifting pad having a fixing groove having a setting and a through hole is provided with a resilient force capable of lifting and lowering by engaging a spring and a pressure pin on a spring chucking groove and a pin hole respectively, . The patent application No. 10-1997-0050715 (Sep. 30, 1997) discloses a hydraulic large bending die plate and a pneumatic bending die which can easily and accurately correct the deformation of the die plate and the punch plate, A punch plate is attached to a punch plate attached to a bottom surface of a punch slider. A punch holder is attached to the punch plate. A die plate is provided on a lower base of the punch plate. A hydraulic type large bending machine provided with a hydraulic cylinder for driving a punch slider is provided with a sub cylinder which is provided at the abdomen of a punch slider so as to push down the abdomen of the punch plate and fixes the tip of the rod to the abdomen of the punch plate, And the tip of the rod is fixed to the punch plate fixed to the abdomen of the die plate, And two sets of hydraulic circuits for controlling the sub cylinders, respectively. In more detail, the patent application No. 10-2008-0038260 (Apr. 24, 2008) discloses a large iron plate bending apparatus used for bending a large steel plate of a ship having a length of ten meters, It is possible to easily mount the device on the floor of the factory with a smaller installation area compared with the conventional vertical bending device that occupies a lot of installation space in the factory, It is possible not only to utilize the upper ground space more efficiently but also to easily perform the bending operation of the large iron plate without the iron plate transferring apparatus such as the conveyor which must be provided in the conventional vertical type bending apparatus, And the workability can be greatly improved. The Utility Model Registration Application No. 20-1994-028812 (Oct. 31, 1994) relates to a die positioning device for a bending press, and in order to adjust the position of the bending die by a mechanical method, a press body, a bed, And a bending die having a punch, wherein the bending die comprises: a lifting part provided on both sides of the bending press so that the bending die can be raised and rotated; and a bending die placed on the upper surface of the bed after the predetermined recessed part of the bending die is operated by operating the lifting part. The bending die can be easily rotated and the bending die can be accurately and easily aligned with the position of the punch. Therefore, It can shorten the time and reduce the fatigue of the worker. A utility model registration No. 20-1997-0027339 (Sept. 30, 1997) discloses a hydraulic bending machine for bending an iron plate workpiece by arranging two hydraulic bending machines in series and bending a long work piece into a small bending machine at one time. A punch is mounted on the punch holder on the bottom of the punch plate and two hydraulic brakes with dies are installed in series on the die plate of the base so that both brakes are operated independently and operated hydraulically As shown in FIG. The utility model registration No. 20-1998-0012289 (July 1, 1998) is easily installed between the upper die and the lower die of the bending device for bending the flat plate used as the building exterior material, A secondary band die for assisting a building facer bending device so that a corner portion of a building exterior material can be bent into a desired shape in advance so as to be suitable for rounding the corners in a corner drawing step to be performed later, And is used by being mounted on an upper die of the casing material bending device, and has an arcuate bending portion at a lower portion of the main body. The bent portion is provided with a sharpened bottom edge for easily bending the flat plate. The auxiliary lower bend die according to the present invention is mounted and used on a lower die of a building exterior bending apparatus and has a lower support frame for supporting the auxiliary upper band die and a support rail for supporting the lower support frame so as to reciprocate do. A pair of bent grooves corresponding to the bottom edge shape of the auxiliary upper band die is formed on the upper surface of the body of the lower support frame. [0001] The present invention relates to a variable die for bending a plate material having various bending widths, and has an installation space in a central region, A movable block having a body formed with two projections and having an inclined surface formed on one side of the first projection and a slope corresponding to the inclined surface of the first projection so as to be movable in the installation space, A gap adjusting member provided between the second projecting portion and the moving block to adjust an interval between the moving blocks, and a tightening member screwed to the moving block through the second projecting portion.
Until now, the bending mold has a problem that if the bending angle is changed due to the deformation of the machined surface of the die due to wear or other cause when the mold is aged for a long time, there is a problem that the die must be replaced, However, the present invention has been made to solve such a problem, and it is an object of the present invention to improve the machining accuracy by correcting the machining error of the banding die in real time, thereby realizing high-quality machining.
A bending die for forming a bending edge on an upper mold and a lower die for mounting a processing die corresponding to the bending die on a die holder, the bending die for bending an iron plate, In constructing the bending die pinch die capable of this,
Wherein a pair of processing dies each having an inclined mounting groove formed on an upper surface of the die holder and having guide rails formed at both ends thereof and having inclined machining surfaces formed on both guide rails are formed in the mounting grooves so that the machined surfaces face each other So as to constitute a bending die pinch die capable of adjusting the machining error so as to adjust the interval in which the machining surfaces of the machining die face each other.
According to the present invention, when the gap of the die is deformed due to abrasion or thermal deformation due to friction for a long period of time and the bending angle is not constant and a defect occurs, the machining error is compensated by adjusting the bending angle of the die, So that high-quality processing can be performed.
1 is an exploded perspective view illustrating a state in which an adjustment plate of the present invention is used.
2 is a side view illustrating an initial state using the adjustment plate of the present invention;
3 is a cross-sectional view illustrating a state in which the adjustment plate of the present invention is used.
4 is an exploded perspective view illustrating an adjusting bolt of the present invention.
5 is a side view illustrating an initial state in which the adjusting bolt of the present invention is formed;
6 is a cross-sectional view illustrating an embodiment of the adjusting bolt of the present invention.
Fig. 7 is a diagram showing an example of a configuration state of a processing die as a main part of the present invention. Fig.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.
A bending die for forming a bending edge (10) in an upper mold and a lower die for mounting a processing die (30) corresponding to the bending blade (10) in a die holder (20) In constructing the bending die pinch die capable of adjusting a machining error by coupling a separate processing die 30 to the holder 20,
1 to 6, an angular mounting groove 21 is formed on the upper surface of the die holder 20 so as to form guide rails 22 at both ends of the mounting groove 21, The pair of processing dies 30 having the inclined machining surface 31 formed on the guide rail 22 of the machining die 30 may be configured to be fitted and removed so that the machined surfaces 31 face each other, The bending die pinch die is configured such that the machining error can be adjusted so as to adjust the interval in which the first and second molds 31 are opposed to each other.
1 to 3, sleeve holes 23 are formed at regular intervals in the longitudinal direction on the guide rails 22 formed on both sides of the mounting grooves 21 of the die holder 20, A setting tapped hole 32 is formed at a position coinciding with the sleeve hole 23 of the processing die 30 to be mounted on the guide rail 21 of the die holder 20 through the sleeve hole 23 formed in the guide rail 22 of the die holder 20 The setting bolt 40 is engaged with the setting tapped hole 32 of the processing die 30 and the adjustment plate 45 made of a separate piece is inserted between the guide rail 22 and the processing die 30, So as to adjust the interval at which the working faces 31 of the processing die 30 face each other on a point-by-point basis.
4 to 6, the guide rails 22 formed on both sides of the mounting grooves 21 of the die holder 20 are provided at regular intervals in the longitudinal direction with a sleeve hole 23 are formed on both sides of the sleeve hole 23 so as to form adjustment tongues 24 on both sides of the sleeve hole 23 and a setting tapped hole 32 is formed at a position corresponding to the sleeve hole 23 of the processing die 30 mounted on the mounting groove 21 The setting bolts 40 are coupled to the setting tapped holes 32 of the processing die 30 through the sleeve holes 23 formed in the guide rails 22 of the die holder 20 and the respective sleeve holes 23 The adjustment bolt 41 is engaged with the adjustment tapped hole 24 formed on both sides of the processing surface 30 of the processing die 30 so that the tip of the adjustment bolt 41 is projected by the operation of the adjustment bolt 41, It is also possible to arrange the machining die 30 to be fixed to the die holder 20 by tightening the setting bolt 40 The.
7, the processing die 30 is divided into a plurality of blocks on the basis of the respective setting tapped holes 32 or on the basis of two or three setting tapped holes 32, It is also possible to arrange such that the machining surfaces 31 of the processing die 30 face each other.
Hereinafter, an embodiment of the present invention will be described.
First, when the gap of the die is deformed due to abrasion or thermal deformation due to friction for a long period of time and the bending angle is not constant and defects occur, the processing die 30 is integrally formed, The setting bolt 40 is loosened to form a gap between the die holder 20 and the processing die 30 and the machining die 30 The setting bolt 40 penetrating the slip hole 23 is inserted into the setting tapped hole 32 of the processing die 30 when the setting bolt 40 is inserted again And the machining error is compensated by the thickness of the adjustment plate 45 while being tightened by pulling the processing die 30 by the displacement of the thread.
However, in compensating the machining error using the adjusting plate 45 as described above, it is a simple and stable method to compensate for the machining error.
Next, the processing die 30 is integrally formed and the guide rails 22 formed on both sides of the mounting grooves 21 of the die holder 20, without using the adjusting plate 45, The sleeve holes 23 are formed on both sides of the sleeve hole 23 and the adjusting holes 24 are formed on the both sides of the sleeve holes 23 so as to correspond to the sleeve holes 23 of the processing die 30 mounted on the mounting grooves 21. [ The setting bolt 40 is coupled to the setting tapped hole 32 of the processing die 30 through the sleeve hole 23 formed in the guide rail 22 of the die holder 20, The adjusting bolt 41 is engaged with the adjusting tapped hole 24 formed on both sides of the hole 23 and the adjusting bolt 41 is screwed on the working surface of the processing die 30 When the setting bolts 40 are loosened and the die holder 20 and the processing die 31 are rotated, The guide rail 22 of the die holder 20 is moved in the direction of the axis of the die 30 and the adjusting bolt 41 is deformed by the abrasion, The adjusting bolt 41 screwed to the adjusting tapped hole 24 formed in the screw hole 24 is moved forward and backward by the thread pitch to push or release the machining die 30 to correct the machining error.
When the setting bolt 40 is tightened again after the adjustment, the setting bolt 40 passing through the slip hole 23 is engaged with the setting tapped hole 32 of the processing die 30, Is pulled toward the guide rail (22) side to tighten the processing die (30) while tightening.
At this time, the setting bolt 40 is tightly fixed to the head of the adjusting bolt 41 while fixing the setting bolt 40 and the adjusting bolt 41 firmly.
Even if the processing die 30 of the present invention is divided into a plurality of blocks, the above-described operation is the same, but a new effect that is easy to adjust each block separately will be created.
INDUSTRIAL APPLICABILITY When the present invention is carried out at an industrial site for bending an iron plate, it is possible to reduce cost and improve productivity, and to obtain high quality workpieces, thereby improving the quality of the steel plate.
10: bending blade 20: die holder 21: mounting groove
22: guide rail 23: sleeve hole 24: adjustment tongue
30: machining die 31: machining surface 32: setting tapped hole
40: setting bolt 41: adjusting bolt 45: adjusting plate

Claims (4)

  1. A bending die for forming a bending edge (10) in an upper mold and a lower die for mounting a processing die (30) corresponding to the bending blade (10) in a die holder (20) In constructing the bending die pinch die capable of adjusting a machining error by coupling a separate processing die 30 to the holder 20,
    An angular mounting groove 21 is elongated on the upper surface of the die holder 20 so as to form guide rails 22 at both ends of the die holder 20. The guide rails 22 on both sides of the mounting groove 21 are inclined A pair of processing dies 30 on which the processing surfaces 31 of the processing die 30 are formed so as to be opposed to each other so that the processing surfaces 31 of the processing die 30 are arranged to face each other, And a bending die pinch die capable of adjusting the machining error.
  2. The method of claim 1, wherein
    A sleeve hole 23 is formed at regular intervals in the longitudinal direction on the guide rails 22 formed on both sides of the mounting groove 21 of the die holder 20 and a plurality of A setting tapped hole 32 is formed at a position coinciding with the sleeve hole 23 and is inserted into the setting tapped hole 32 of the processing die 30 through the sleeve hole 23 formed in the guide rail 22 of the die holder 20 The adjusting bolt 40 is engaged and the adjusting bolt 40 is inserted between the guide rail 22 and the machining die 30 by inserting a separate piece of the adjusting plate 45 into the machining die 30, (31) are adjusted on a spot-by-point basis.
  3. The method of claim 1, wherein
    A sleeve hole 23 is formed in the center at regular intervals in the longitudinal direction on the guide rails 22 formed on both sides of the mounting groove 21 of the die holder 20 and adjustment tongues 24 are formed on both sides of the sleeve hole 23 And a setting tapped hole 32 is formed at a position corresponding to the sleeve hole 23 of the processing die 30 mounted on the mounting groove 21 so that the sleeve 22 formed on the guide rail 22 of the die holder 20 The setting bolt 40 is engaged with the setting tapped hole 32 of the processing die 30 through the hole 23 and the adjusting bolt 41 is coupled to the adjusting tapped hole 24 formed on both sides of each sleeve hole 23. [ The adjusting bolt 41 is adjusted so that the front end of the adjusting bolt 41 protrudes and the interval of the machining surfaces 31 of the machining die 30 facing each other is adjusted for each point, Wherein the die holder (20) is fixed to the bending die (30).
  4. The method according to claim 2 or 3,
    The processing die 30 is divided into a plurality of blocks on the basis of the respective setting tapped holes 32 or on the basis of two or three setting tapped holes 32, ) Are arranged so as to be spaced apart from each other. The bending die pinch die is capable of adjusting a machining error.
KR1020160007550A 2016-01-21 2016-01-21 Processing errors adjustable bending mold punch die KR20170087680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160007550A KR20170087680A (en) 2016-01-21 2016-01-21 Processing errors adjustable bending mold punch die

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Application Number Priority Date Filing Date Title
KR1020160007550A KR20170087680A (en) 2016-01-21 2016-01-21 Processing errors adjustable bending mold punch die

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049949B1 (en) * 2018-07-18 2019-11-28 주식회사다스 Manufacturing apparatus for seat rail of vehicle
KR20210093801A (en) 2021-07-08 2021-07-28 (주)세일금형 Press mold with rotating core for bending

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049949B1 (en) * 2018-07-18 2019-11-28 주식회사다스 Manufacturing apparatus for seat rail of vehicle
KR20210093801A (en) 2021-07-08 2021-07-28 (주)세일금형 Press mold with rotating core for bending

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