JPH079513U - Bending mold - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a bending die that can easily cope with a change in bending length and can easily exchange or set up the die. . [Structure] Double deck lower piece 9 provided on lower table 7, lower die 13 for step bending provided on this double deck lower piece 9, and cylinders 11 provided at both ends of said double deck lower piece 9. A double-deck upper piece 19 provided so as to be movable up and down through a double-deck upper piece 19, a step bending upper die 21 provided under the double-deck upper piece 19, and a V provided on an upper portion of the double-deck upper piece 19. Bending lower mold 25 and V-bending upper mold 1 provided under the upper table 3 provided above the lower table 7 so as to be vertically movable relative to the lower table 7.
And are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bending die capable of performing both V bending and step bending on a work.

[0002]

[Prior art]

 Conventionally, as a bending mold for performing both V bending and step bending on a work, a step bending lower die is mounted on a lower table of a bending machine such as a press brake, and the step bending is performed. Air cylinders are attached to both ends of the lower mold. A step bending upper die is attached to the piston rod attached to the air cylinder corresponding to the bending lower die. Moreover, a V-bending die is formed on the upper part of the step bending upper die.

An upper table is provided above the lower table and is movable up and down relatively, and a V-bending punch corresponding to the V-bending die is attached to the lower part of the upper table. Has been.

With the above configuration, when performing V-bending on a workpiece, the air cylinder is operated to lower the upper step bending die and bring it into contact with the lower step bending die. In this state, for example, by vertically moving the lower table, the work is subjected to the V-bending process in cooperation with the V-bending punch and the V-bending die.

Further, when performing step bending on a work, the air cylinder is operated to raise the step bending upper die, and the V bending die is brought into contact with the V bending punch. In this state, for example, by vertically moving the lower table, the step bending work is performed on the work in cooperation with the step bending upper die and the step bending lower die.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, in the above-described conventional bending die for performing both V-bending and step-bending, air cylinders provided at both ends of the step-bending lower die are used for step-bending upper. In order to move the mold up and down, the required maximum length must be secured, and the length of the mold (upper and lower molds for step bending) according to the bending length of the product is required. Until now, it was impossible to use a split type mold.

Further, since the mold used is a full-scale mold, the whole mold had to be replaced when the design of the product changed. Even if the mold was worn, the entire mold had to be replaced. Furthermore, since the mold itself is heavy, changing the setup was difficult.

In order to improve the above problems, an object of the present invention is to make it possible to easily cope with a change in bending length when performing both V bending and step bending of a work. It is an object of the present invention to provide a bending die that allows easy exchange and setup of the die.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a bending die for bending a work to perform both V-bending and step-bending, and a double-deck lower piece provided on a lower table, and The lower die for step bending provided on the lower piece of the double deck, the upper upper piece of the double deck that is vertically movable via cylinders provided at both ends of the lower piece of the double deck, and the upper piece of this double deck. A step bending upper die provided corresponding to the step bending lower die at a lower portion, a V bending lower die provided at an upper portion of the double deck upper piece, and a lower table above the lower table. A bending mold was constructed by including an upper table vertically movable relative to each other and an upper V bending mold provided corresponding to the lower V bending mold.

In the bending die, it is desirable that the V-bending upper die, the lower die and the step bending upper die, the lower die are each of a split type.

[0011]

[Action]

 By adopting the bending die of this invention, when performing V-bending on a work, the cylinder is operated to lower the upper piece of the double deck, and the upper die for step bending is applied to the lower die for step bending. Contact me. In this state, the work is V-bent by the cooperation of the V-bending upper die and the V-bending lower die.

When performing a step bending process on the work, the cylinder is operated to raise the double deck upper piece and bring the V-bending lower die into contact with the V-bending upper die. In this state, the step bending process is performed on the work by the cooperation of the step bending upper die and the step bending lower die.

When the bending length of the work is changed, the upper and lower tables for V-bending are the upper table and the double deck upper piece, and the upper and lower dies for step bending are the double deck upper pieces. , The double deck lower piece can be easily replaced with another mold.

[0014]

【Example】

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

With reference to FIGS. 1 and 2, a V-bending upper die 1 divided into a plurality of bending dies is fixed to a lower portion of an upper table 3 by a plurality of fastening plates 5. Below the upper table 3, there is provided a lower table 7 which is vertically movable by, for example, a hydraulic cylinder.

A double-deck lower piece 9 extending in the left-right direction is mounted on the lower table 7. Air cylinders 11, for example, as cylinders are provided at both ends of the double deck lower piece 9, and a plurality (two in this embodiment) are divided on the double deck lower piece 9 between the air cylinders 11. The step bending lower mold 13 is provided, and both sides of each step bending lower mold 13 are stopped by the stopper sesame 15 so as not to shift to the left and right.

A double deck upper piece 19 is provided at the tip of the piston rod 17 attached to each air cylinder 11. A plurality of step bending upper molds 21 corresponding to the bending lower molds 13 are fixed to the lower part of the double deck upper piece 19 by front fastening plates 23.

A plurality of V-bending lower molds 25 corresponding to the V-bending upper molds 1 are provided in the groove formed in the upper portion of the double deck upper piece 19, and each V-bending lower mold 25 is provided. Both sides of 25 are fixed with sesame 27 so as not to shift to the left and right.

With the above structure, when performing V-bending on a workpiece, the air cylinder 11 is operated to lower the double deck upper piece 19 via the piston rod 17 to move the step bending upper die 21 to the step bending lower die. Abut on the mold 13. In this state, the work is placed on the V-bending lower die 25, and the lower table 7 is moved up and down, for example. Bending will be performed.

Further, when performing step bending on the work, the air cylinder 11 is operated to raise the deck upper piece 19 via the piston rod 17 to move the V-bending lower die 25 to the V-bending upper die. Abut on 1. In this state, the work is placed on the step bending lower die 13 and, for example, the lower table 7 is moved up and down, whereby the step bending upper die 21 and the step bending lower die 13 cooperate with each other to place the work on the work. Bending will be performed. When the lower table 7 is raised, air follows the lower cylinder chamber of the air cylinder 11 and escapes. Moreover, since this air bleeding device is already publicly known, detailed structure and description thereof will be omitted.

Since each upper bending die 21 is fixed to the double deck upper piece 19 by the fastening plate 23, it can be easily detached from the double deck upper piece 19 by removing the fastening plate 23. If necessary, it can be replaced with another upper bending die 21 in a short time. Also, since the lower mold 13 for each step bending is also fixed to the double deck lower piece 9 by the sesame 15, it can be easily removed from the double deck lower piece 9 by removing the sesame 15, and if necessary. Therefore, it is possible to replace the lower die 13 for step bending in a short time.

Therefore, it is possible to easily deal with a change in the step bending length of the work, and it is possible to easily replace and set up the step bending upper die 21 and the lower die 13. Furthermore, by using the step bending upper mold 21 and the lower mold 13 as split molds, a further effect can be obtained.

The V-bending upper die 1 can be easily removed from the upper table 3 by removing the fastening plate 5, and can be replaced with another V-bending upper die 1. Further, the V-bending lower die 25 can be easily removed from the double deck upper piece 19 by removing the stopper sesame 27, and can be replaced with another V-bending lower die 25.

Therefore, it is possible to easily deal with a change in the V-bending length of the work, and it is possible to easily replace and set up the V-bending upper die 1 and the lower die 25. Moreover, by using the V-bending upper die 1 and the lower die 25 as split dies, a further layer effect can be achieved.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. In the present embodiment, an example in which the lower table 7 is moved up and down has been described, but the upper table 3 may be moved up and down.

[0026]

[Effect of device]

 As can be understood from the above description of the embodiments, according to the present invention, since the construction is as described in the scope of claims for utility model registration, the work is subjected to V-bending processing and step-bending processing. When performing, it is possible to easily cope with the bending length, and it is possible to easily perform the mold replacement and setup.

[Brief description of drawings]

FIG. 1 is a side view of a bending mold showing an embodiment of the present invention.

FIG. 2 is a front view of FIG.

[Explanation of symbols]

 1 V Bending Upper Die 3 Upper Table 7 Lower Table 9 Double Deck Lower Piece 11 Air Cylinder (Cylinder) 13 Lower Bending Die 19 Double Deck Upper Piece 21 Upper Bending Upper Die 25 V Bending Lower Die

Claims (2)

[Scope of utility model registration request] 1. A bending mold for performing both V bending and step bending of a work, comprising a double deck lower piece provided on a lower table and a step provided on the double deck lower piece. A lower die for bending, a double deck upper piece that is vertically movable via cylinders provided at both ends of the double deck lower piece, and a lower die for step bending corresponding to the lower portion of the double deck upper piece. Upper die for step bending, a lower die for V bending provided on the upper portion of the double deck upper piece, and an upper portion provided above the lower table so as to be vertically movable relative to the lower table. A bending die, comprising: a V-bending upper die, which is provided at a lower portion of the table so as to correspond to the V-bending lower die. 2. The bending die according to claim 1, wherein the V-bending upper die, the lower die and the step-bending upper die and the lower die are each of a split type.