JPH0719623Y2 - Turret punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a turret punch press capable of fixing a work to a lower die.

(Prior Art) Conventionally, in a turret punch press, a work such as a plate material to be punched is clamped only by a clamp device and placed on a lower die.

(Problems to be solved by the invention) By the way, in the conventional turret punch press described above,
For example, when the work to be punched is made of a soft material such as aluminum, there is a problem that when the punching is performed, the work vibrates and a lower die dent is formed on the lower surface of the work.

An object of the present invention is to provide a turret punch press capable of adsorbing a work to a lower die in order to improve the above problems.

[Structure of the Invention] (Means for Solving the Problem) In order to solve the above-mentioned conventional problems, in the present invention, an upper frame and a lower frame are provided so as to face each other vertically, and an upper frame and a lower frame are provided. An opening is formed between them, and an upper turret having a plurality of upper dies and a lower turret having a plurality of lower dies are respectively provided so as to be located in the opening, and the upper turret and the lower turret are vertically opposed to each other. In order to position the predetermined upper mold and the predetermined lower mold at the punching position, the upper turret and the lower turret are configured to be rotatable, and the lower mold holes of each lower mold communicate with the lower surface of the lower turret. The positioning device that clamps the workpiece and moves it in the x-axis and y-axis directions is provided, and the portion of the lower turret located near the punching position is lowered. The lower frame is provided with a disc support for supporting from the direction, and the disc support is provided with a suction hole,
An air passage having one end connected to a suction device is provided in the lower frame, and the other end of the air passage is connected to a suction hole in the disc support.

(Operation) With the above configuration, by appropriately operating the positioning device, the workpiece is clamped and moved in the x-axis and y-axis directions, and the workpiece portion of the workpiece is positioned at the punching processing position. Further, the upper turret and the lower turret are respectively rotated to position the predetermined upper die and the predetermined lower die at the punching position. Here, by locating the predetermined lower mold at the punching position, the lower mold holes of an appropriate number of lower molds (including the predetermined lower mold) located near the punching position can be made into suction holes and air passages in the disc support. It can be indirectly connected to the suction device via.

Then, the suction device is appropriately operated to suck air through the air passages and the suction holes by the lower mold holes of the appropriate number of lower molds. As a result, the vicinity of the processed portion of the work can be sucked by the appropriate number of lower molds, and the vicinity of the processed portion of the work can be fixed to the appropriate number of lower molds.

After the work is adsorbed by a suitable number of lower molds, punching is performed on the work part of the work by cooperation of a predetermined upper mold and a predetermined lower mold.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 4, side frames 5R, 5L are integrally provided on both sides of the lower frame 3 in the turret punch press 1, and the upper portions of the side frames 5R, 5L are as shown in FIG. Further, an upper frame 7 which is vertically opposed to the lower frame 3 is provided. The turret punch press 1 has a gate shape.

An opening is formed between the lower frame 3 and the upper frame 7, and a pair of turret devices 9 including an upper turret and a lower turret are provided so as to be located in the opening. A large number of upper molds and a large number of lower molds 23 are respectively mounted on the upper turret and the lower turret of the turret device 9, and the work is punched by the cooperation of the upper molds and the lower molds 23. Will be done. The upper turret and the lower turret are configured to be rotatable in order to position the predetermined upper die and the predetermined lower die 23 at the punching position. As shown in FIG. 1, the lower mold cavity of each lower mold 23 is configured to communicate with the lower surface of the lower turret 21.

In front of the turret device 9 (to the right in FIG. 4), there is provided a positioning device 11 having a work clamp movable in the X-axis and Y-axis directions.

With the above configuration, the work is clamped by the work clamp, and the work clamp in the positioning device 11 is moved to the X position.
Move the workpiece in the axis and Y-axis directions to position the work piece to be machined at the punching position. Then, a desired one is selected from the upper die and the lower die 23 mounted on the turret device 9 and the upper die and the lower die 23 are made to cooperate with each other, whereby the work is punched.

A scrap port 13 is formed in a part of the lower frame 3, and a scrap box 15 as shown in FIG. 3 is attached to the scrap port 13. One end of a duct hose 17 is connected to the scrap box 15, and the other end of the duct hose 17 is connected to a vacuum pump 19 as a suction device.

With the above configuration, when the vacuum pump 19 is operated, air is sucked from the scrap port 13 and the scrap box 15,
It is sucked by the vacuum pump 19 via the duct hose 17.

FIG. 1 shows a front view of a lower turret rotatably supported on a lower frame. FIG. 2 is a plan view of FIG.

In FIGS. 1 and 2, a large number of lower molds 23 are provided on the outer peripheral portion of the lower turret 21. Lower frame 3
A disk support 25 is provided for supporting the portion of the lower turret 21 located near the punching position S from below. The disc support 25 has suction holes as shown in FIG. An air passage 27 is formed in the lower frame 3. One end of the air passage 27 is the scrap port 13, and the other end of the air passage 27 is connected to a suction hole in the disc support 25.

With the above configuration, when the work W is placed on the lower die 23 at the punching processing position S such that the processed portion is located and the vacuum pump (suction device) 19 is operated, the air in the air passage 27 is sucked. Then, the lower surface of the work W is sucked by the plurality of lower molds 23 located near the upper side of the disk support 25 (near the punching position S). Since desired punching is performed in this state, vibration of the work W can be suppressed as much as possible. Therefore, the lower die 23 is not dented on the lower surface of the work W.

Further, since the disc support 25 is provided with a suction hole, and the other end of the air passage 27 having one end connected to the suction device 19 is connected to the suction hole in the disc support 25, a lower die hole in the lower die 23 is formed. It is possible to indirectly connect the lower die hole of any lower die 23 positioned at the punching processing position to the suction device 19 without connecting the suction device 19 to the suction device 19. Therefore, any lower mold 23 out of many lower molds 23
Therefore, since the work is sucked, the structure of the turret punch press does not become complicated.

(Effects of the Invention) As can be understood from the above description of the embodiments, according to the present invention, a suitable number of lower molds located in the vicinity of the punching position are used to hold the workpiece in the vicinity of the workpiece. So, because the punching process is performed on the work,
The vibration of the work can be suppressed as much as possible. Therefore, it is possible to prevent the lower die dents from being formed on the lower surface of the work as much as possible and improve the working accuracy of the work.

Also, by connecting the other end of the air passage, which has a suction hole in the disc support and has one end connected to the suction device, to the suction hole in this disc support, the lower die holes in many lower molds are connected to the suction device. Even if it does not, the lower die hole in any lower die positioned at the punching position can be indirectly connected to the suction device. Therefore, since the work is sucked by any of the lower molds, the structure of the turret punch press does not become complicated.

[Brief description of drawings]

FIG. 1 is a front sectional view of a lower turret mounted on a lower frame according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a perspective view showing an example of a suction device mounted on a scrap port. FIG. 4 and FIG. 4 are perspective views of an example of a turret punch press embodying the present invention. 1 ... Turret punch press 3 ... Lower frame 13 ... Scrap port 21 ... Lower turret 23 ... Lower mold 25 ... Disk support S ... Punching position

Claims (1)

[Scope of utility model registration request] 1. An upper frame and a lower frame are vertically opposed to each other, an opening is formed between the upper frame and the lower frame, and an upper turret having a plurality of upper dies and a lower portion having a plurality of lower dies. Turrets are provided so as to be located in the openings, respectively, and the upper turret and the lower turret are vertically opposed to each other. The lower turrets are configured to be rotatable, the lower die holes of the respective lower dies are connected to the lower surface of the lower turret, and a positioning device for clamping the workpiece and moving it in the x-axis and y-axis directions is provided. The lower frame is provided with a disc support for supporting a portion of the turret located near the punching position from below, and the disc support has a suction hole. ,
A turret punch press, wherein an air passage having one end connected to a suction device is provided in the lower frame, and the other end of the air passage is connected to a suction hole in the disc support.