JPH01317633A - Press device - Google Patents

Abstract

PURPOSE:To improve the positioning accuracy by feeding a work and to be sucked to it to the lower die by providing a suction duct having a suction shutter and an exhaust duct having an exhaust shutter on the lower side of the lower die penetrated into a work adsorption hole and providing a work feeding device on the lower die. CONSTITUTION:A work adsorbing hole 7 is provided on the lower die 2, and a suction duct 9 provided with a suction shutter 9C communicating with this work adsorption hole 7, and an exhaust duct 11 communicating with the suction duct 9, and also, communicating with an exhaust shutter 11C and a dust collector 12 are provided. Subsequently, a work feeding device 13 for transferring a work W to the lower die 2, and an adsorbing tool 18 for adsorbing the work W are provided. In this state, the work W adsorbed by the adsorbing tool 18 is placed on the lower die 2 by the work feeding device 13, the work W is adsorbed and fixed to the lower die 2 by operating the suction shutter 9C and the exhaust shutter 11C, and thereafter, the adsorbing tool 18 is brought to drawback, to be positioned and worked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Industrial Field of Application) The present invention relates to a press device for handling flat sheet works such as printed circuit boards.

(Prior Art) Conventionally, when press working a printed circuit board, a positioning hole is previously drilled on a diagonal line of the workpiece above the position printed on the workpiece, and the holes are fitted into guide pins of a lower die for positioning.

In addition, the workpiece with the sensor mark printed on it is sent to the lower die, where it is detected by, for example, a photodetector (optical sensor) installed near the punch, and this signal is used to grab the workpiece and fix it to the lower die. There is also a method of processing.

(Problems to be Solved by the Invention) However, in the former method, since it is done manually, there are safety problems, and the drilling for positioning requires machining, so even if it is replaced with robot machining, there are problems in terms of accuracy.

On the other hand, the latter requires a gripping allowance when temporarily fixing the workpiece, resulting in wasted material.

It is an object of the present invention to provide a press device that does not require a gripping allowance, can perform highly accurate positioning, and can process a workpiece without damaging it.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention provides a press device in which a punch and a lower die are provided in the press section of a press machine frame, in which a work suction hole is provided in the lower die and the workpiece is An intake duct that communicates with the suction hole and is equipped with an intake shutter, and an exhaust duct that communicates with the intake duct behind the lower die and communicates with the exhaust shutter and dust collector are installed in the press frame, and the workpiece is placed at one end of the press frame. A workpiece feeding device is provided to transfer the workpiece to the lower die, a suction tool for sucking the workpiece is provided on the workpiece feeding device, the workpiece sucked by the suctioning tool is placed on the lower die by the workpiece feeding device, and an intake shutter and an exhaust shutter are installed. After it is activated and the workpiece is sucked and fixed on the lower die, the suction tool is retracted and the workpiece is positioned and processed without gripping margin or drilling holes for positioning, and when the workpiece is transferred to the upper surface of the lower die, the exhaust shutter is opened and the workpiece is placed on the lower surface of the workpiece. This is a press device that does not cause any damage.

(Example) Hereinafter, an example of the press apparatus of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of the press apparatus of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of FIG. 2.

1 to 3, a lower die 2 is removably provided in the press part 1a at the left middle part of the press frame 1 with a pair of gripping parts 3, as shown in FIG. 2
A punch 4 is installed on the press frame 1 directly above the press frame 1 so that it can be raised and lowered by a hydraulic cylinder 5 at the upper end.Like the lower die 2, it is also installed in a detachable manner with a pair of gripping parts 6, and the punched workpiece is , is bitten into the upper side of the punch 4 and is temporarily stored in a certain amount.

On the other hand, the lower die 2 has many workpiece suction holes 7 as shown in FIG.
The air intake duct 9 is connected to a cabin 8 formed in FIG. 1A, and a tip 9a of an intake duct 9 is connected to one side of the cabin 8, and a shutter 9C operated by an electromagnet is provided at a base end 9b of the intake duct 9. Roughly speaking, the tip 11a of an exhaust duct 11 is connected to the other side of the cabin 8 as shown in FIG. There is an exhaust shutter 11 operated by an electromagnet.
C is provided.

Roughly speaking, at the right end of the press frame 1, a work feed device 13 for transferring the work W to the lower die 2 is provided, and this work feed device 13 includes a pair of guides attached to the press frame 1. A rail 14 and a feed screw 15 are arranged in parallel, and the right end of the feed screw 15 is connected to the output shaft of a pulse motor 16. In addition, the guide rail 14 and the feed screw 15
A movable frame 17 is provided movably spanning the press section 1a, and the movable frame 17 has a suction port 18a at the lower left end for suctioning the upper surface of the workpiece W, as shown in FIGS. 2 and 3. A suction tool 18 is attached to which a suction pipe 19 at the right end is connected to a vacuum pump (not shown).

Further, a workpiece pedestal 20 is provided on the side surface of the guide rail 14 so as to be able to be raised and lowered by a push-up device (not shown).
As shown in FIG. 4, there are a plurality of notches 20a, 20b.
There is. Further, fixed reference pins 21a, 21b are provided on the right edge 20c side and notch 20a side of the pedestal 20, and movable adjustment bins 22a, 22b are provided on the opposite side of the fixed reference pins 21a, 21b. This movable adjustment bin 22a
, 22b fix the workpiece W using reference pins 21a and 21b.
It is positioned by pressing it against the Roughly speaking, sensor marks W1 in the Y-axis direction are provided at the front and rear ends of the workpiece W, and sensor marks W2 and W3 in the X-axis direction are provided on one side of the workpiece W.

Roughly, press frame 1 directly above sensor mark W1
As shown in FIG.
, 23b are provided, and a sensor mark W2.

On the movement path of W3, there is a work piece counting sensor 24.
(See Figures 1 and 2).

Therefore, the position detection sensors 23a and 23b detect the work W
is positioned by the movable adjustment bins 22a and 22b,
The sensor mark W1 is read to detect accurate positioning on the pedestal 20. In addition, as shown in FIG. 4, the frame counting sensor 24 detects each sensor mark W2, when pressing and taking out two parts (two-piece printed circuit board) Wa and Wb from one work W. W3
is counted and the workpiece W is moved forward twice on the lower die 2.

Note that a work transfer device 25 is provided beside the pedestal 20, and a preheating device 26 for the work W is provided above the work transfer device 25.

Further, there is a guide section 28 between the press frame 1 and the work feed device 13 for guiding the lower surface of the work W when transferring the work W to the press section 1a. Further, there is a workpiece holding device 27 at the left end of the press frame 1, which takes out the punching frame of the workpiece to the outside.

Hereinafter, the effects of the present invention will be explained.

Now, the workpiece W sent onto the pedestal 20 by the workpiece transfer device 25 is positioned by the movable adjustment bins 22a and 22b. Then, each sensor mark W1 of this workpiece W is detected by the position detection sensors 23a and 23b and confirmed.
At the same time that the suction tool 18 suctions the workpiece W, the pulse motor 16 of the workpiece feeding device 13 is driven and the feed screw 1
5, the movable frame 17 moves to the left in FIG. 2 by guiding the lower surface of the workpiece W by the guide portion 28.

At this time, the exhaust shutter 29 is opened and the exhaust duct 11 is opened.
Open to stop the intake of air from the cabin 8 below the lower die 2. Therefore, the work W moving on the lower die 2 does not come into contact with the upper surface of the lower die 2. At this time, the frame counting sensor 24 counts the sensor marks W2 and counts the first
The press position of the part Wa is detected and the work feed device 13
temporarily park in a designated position. Then, the punch 4 is lowered by the hydraulic cylinder device 5, and the first part Wa of the workpiece W is bitten into the upper side of the punch 4 and temporarily stored.

Next, after punching out the first part Wa, the pulse motor 16 of the work feed device 13 is driven to advance the work W again. At this time, the frame counting sensor 24 counts the sensor marks W3 to detect the pressing position of the second part Wb of the workpiece W, temporarily stops the operation of the workpiece feeder 13, and closes the intake shutter 9C. Then, the upper surface of the lower die 2 is covered with the workpiece W, so the workpiece W is temporarily suctioned and fixed onto the lower die 2, and the suction force of the suction tool 18 is released, and the workpiece feeder 13 returns to its original position. It returns to and stops.

Next, the punched second part W2 is held in the upper part of the punch 4 and stored.

Next, the exhaust shutter 11C is operated to block the air flow path from the outside, and at the same time, the intake shutter 9C is opened to collect the chips accumulated in the cabin 8 through the exhaust duct 11 into the dust collector 12. Note that the punching frame for the workpiece W left on the lower die 2 is attached to the workpiece holding device 2 in Fig. 1.
It is taken out of the aircraft at 7.

Note that if the structure of the lower die 2 is such that the intake hole 7 is connected to the cabin 8 by some means up to this upper surface, this intake hole 7 is not necessary, and a vacuum holding device is provided in a specific part of the lower die 2. The workpiece W may be held, and the cabin 8 may be closed instead of the intake duct 9 in front of the lower die 2.

[Effects of the Invention] As described above, according to the press processing apparatus of the present invention, the workpiece W is transferred to the lower die 2 by the suction tool 18 for press processing, so there is no need for a gripping allowance, and the material becomes economical. Therefore, the guide bin of the lower die 2 and the holes for positioning the workpiece W do not need to be processed, and the upper surface of the workpiece W is not damaged. , the positioning accuracy of the workpiece W is improved, and since the lower surface of the workpiece W and the upper surface of the lower die do not touch, it is possible to obtain a press working apparatus in which the lower surface of the workpiece W is not damaged.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the press device of the present invention;
FIG. 2 is a plan view of the press apparatus of the present invention, FIG. 3 is an enlarged sectional view taken along the chain line A-A in FIG. It is. 1... Press machine frame 2... Lower die 4... Punch 7... Work suction hole 9... Intake duct 9C... Intake shutter 11... Exhaust duct 11C... Exhaust shutter 12... Dust collector 13... Workpiece feeding device 16... Pulse motor 11... Movable frame 18... Suction tool 20... Recliner 23a, 23b... Position detection sensor 24 ... Piece counting sensor 25 ... Workpiece conveyance device agent Patent attorney Nori Chika Ken Yudo Daishimaru Ken Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] A press device for supplying a plate material between a punch and a lower die for press processing, wherein one end communicates with the lower side of a workpiece suction hole that vertically penetrates the lower die, and a part of the lower die an intake duct provided on the side and having an intake shutter at the other end, and one end communicating with the lower side of the work suction hole and provided on the other side of the lower die;
an intake duct whose other end is connected to a dust collector and has an exhaust shutter in the middle; and a workpiece feeding device which is provided on the machine frame of the press device and which sucks and transfers the workpiece onto the lower die. A press device characterized by being provided with.