JPH06177581A - Automatic packaging machine of electronic part - Google Patents

Abstract

PURPOSE:To assure the high efficient production by making the part replacement during operation step feasible while securing the safety of an operator. CONSTITUTION:Limit switches 16, 18 detecting respective safety covers 12, 14 corresponding to respective part feeding units 2, 3 and the opened state thereof are provided while a part replacement safety controller 24 turning off the driving source of the part feeding units 2, 3 during the part replacement step of the part feeding unit 2 or 3 on standby position as well as annulling the detection of the limit switch 16 or 18 corresponding to the feeding unit 2 or 3 is provided. Through these procedures, the possibility of unexpected operation of the part feeding unit 2 or 3 during the part replacement step can be precluded thereby enabling this automatic packaging machine to be operated even if the safety cover 12 or 14 is opened for securing the safety as well as the part replacement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component automatic mounting machine, and more particularly to a means for ensuring worker's safety in an electronic component automatic mounting machine provided with two component supply means operating alternately and independently. is there.

[0002]

2. Description of the Related Art A schematic structure of a conventional electronic component automatic mounting machine (hereinafter abbreviated as a mounting machine) and means for ensuring worker's safety will be described with reference to FIG.

In FIG. 5, reference numeral 31 is an XY table portion for positioning the printed circuit board 30, and 32 and 33 are electronic parts P.
The left and right component supply units 34, 34 are mounting heads for picking up the electronic component P from one of the component supply units 32, 33 and mounting it on the positioned printed circuit board 30. Reference numerals 35 and 36 are a loader section and an unloader section for loading and unloading the printed circuit board 30 with respect to the XY table section 31. Reference numeral 37 is an operation unit for operating them.

In such a mounting machine, a transparent plastic safety cover 4 is provided on the front and rear surfaces of the movable part.
1 is provided. Then, the limit switch 4 for detecting this when the safety cover 41 is not in a normal state
2 is provided, and the detection signal thereof is input to the standard safety control unit 43 that controls the safety stop.

In the mounting machine configured as described above, the electronic component P is mounted on the component supply units 32 and 33, and when the start button of the operation unit 37 is pressed, the NC data of the printed circuit board 30 to be produced is displayed. Based on this, the XY table portion 31 is positioned, and the mounting head portion 34 takes out the electronic component P from one of the component supply units 32 or 33 and mounts it on the printed circuit board 30. When the implementation is finished,
The printed circuit board 30 is unloaded by the unloader unit 36, and a new printed circuit board 30 is loaded by the loader unit 35.
The above repetitive operation is automatically performed.

During this mounting operation, the worker can put the safety cover 41
When the switch is opened, the limit switch 42 operates, a signal is sent to the standard safety control unit 43, and the mounting machine is stopped on the spot to ensure safety. Further, when the safety cover 41 is closed and the start button of the operation unit 37 is pressed, the restart is executed and the continuous operation is performed again.

Further, one component supply unit 32 or 3
When the electronic component P of 3 is used up, the other component supply unit 33 or 32 automatically operates in turn, and the component outage display is performed.

[0008]

However, in the above-mentioned structure, it is necessary to open the safety cover 41 when replacing the parts of the parts supply unit 32 or 33 which has stopped because the electronic parts P are lost. However, there is a problem in that productivity is reduced because the continuous operation of the mounting machine is stopped accordingly.

In view of the above problems of the prior art, the present invention provides an electronic component automatic mounting machine which can ensure the safety of workers and can replace components during operation, and can ensure highly efficient production. To aim.

[0010]

An electronic component automatic mounting machine according to the present invention is a mounting device for a board, two component supply means, and an electronic component taken out from a component supply means in operation and mounted on a positioned board. The mounting means, the safety means for ensuring the safety of the worker against the operation of the component supply means, the safety detection means for detecting the normal state of the safety means, and the operation stop based on the detection signal from the safety detection means In the electronic component automatic mounting machine provided with a means for making, each safety means and safety detection means are provided corresponding to each component supply means,
During the parts replacement work for the stopped parts supply means, means for turning off the drive source of the parts supply means and invalidating the detection of the safety detection means corresponding to the parts supply means is provided.

[0011]

With the above-described structure, the present invention ensures the safety of the operator because the drive source of the component supply means that is replacing the component is turned off when the component is replaced, and the safety means is released for the replacement. Since the detection of the safety detecting means is invalidated, the mounting operation of the mounting machine can be continued without stopping, and the component mounting can be continued while ensuring the safety of the operator and the highly efficient production can be secured.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic component automatic mounting machine according to an embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, 1 is an XY table for positioning the printed circuit board 10, 2 and 3 are left and right component supply units for supplying an electronic component P, 4 is an electronic component P from one of the component supply units 2 and 3. Is a mounting head part for taking out and mounting on the printed circuit board 10 positioned.
Numerals 5 and 6 are a loader section and an unloader section for loading and unloading the printed circuit board 10 with respect to the XY table section 1. Reference numeral 7 is an operation unit for operating them. The operation unit 7 has an appearance as shown in FIG. 2, and 8 is a start button.

In such a mounting machine, a front safety cover 11 made of transparent plastic is provided on the front surface of the movable part, and a left safety cover 12 corresponding to the left component supply unit 2 and a mounting head portion are provided on the rear surface side. 4 and a right safety cover 14 corresponding to the right side component supply unit 3 are arranged.
Limit switches 15, 16, 17, and 18 are provided to detect when 2, 13, and 14 are not in a normal state. Further, a standby detection switch 19 for detecting that the left and right component supply units 2 and 3 are stopped at the standby position,
20 and component replacement switches 21 and 22 that are pushed by an operator when replacing components for the respective component supply units 2 and 3.

Reference numeral 23 is a standard safety control unit, and 24 is a parts replacement safety control unit. As shown in FIG. 3, the standard safety control unit 2
3 includes a front safety cover 11 and a rear center safety cover 13
Detection signals of limit switches 15 and 17 for detecting an abnormal state of No. 2 are input, and limit switches 16 and 18 for detecting an abnormal state of the left and right safety covers 12 and 14 on the rear surface are input to the component replacement safety control unit 24. Standby detection switch 1
The detection signals of 9 and 20 and the component replacement switches 21 and 22 are input. The component replacement control unit 24 turns off the NC driver 25 or 26 that drives the corresponding component supply unit 2 or 3 during component replacement with the standby detection switch 19 or 20 and the component replacement switch 21 or 22 turned on. In addition, the detection signal of the corresponding limit switch 16 or 18 is invalidated, and the detection signal is output to the standard safety control unit 23 except when the above-mentioned component replacement is in progress. The standard safety control unit 23 includes limit switches 15 and 1
When the detection signals from 6, 17, and 18 are input, all the drive sources are turned off and the mounting machine is stopped.

In the above structure, the electronic component P is mounted on the component supply units 2 and 3, and when the start button 8 of the operation unit 7 is pressed, the NC of the printed circuit board 10 to be produced is NC.
The XY table portion 1 is positioned based on the data, and the mounting head portion 4 takes out the electronic component P from one component supply unit 2 or 3 and mounts it on the printed circuit board 10.

When the mounting is completed, the printed circuit board 10 is carried out by the unloader section 6, and the new printed circuit board 10 is carried in by the loader section 5, and the above-mentioned repeated operation is automatically carried out.

When an operator opens the front safety cover 11 or the central safety cover 13 during the mounting operation, the limit switch 15 or 17 is turned on to operate the standard safety control section 23, and the mounting machine immediately stops safely. . When the corresponding safety cover 12 is opened while one component supply unit 2 is operating, the limit switch 16 is turned on and the mounting machine is similarly stopped safely, and the other component supply unit 3 is also activated. When the safety cover 14 is opened, the limit switch 18 is turned on and the mounting machine similarly stops safely.

On the other hand, for example, when the electronic parts P of the parts supply unit 3 are exhausted and stopped at the standby position and parts are to be replaced for this parts supply unit 3, as shown in FIG. When the component replacement switch 22 is pressed, the component replacement control unit 24 detects that it is a component replacement operation,
The detection signal from the standby detection switch 20 confirms that the component supply unit 3 is located at the standby position. When it is confirmed that the parts are being replaced, the NC driver 26 that drives the parts supply unit 3 is turned off first, and then the detection signal of the limit switch 18 that detects that the safety cover 14 is opened is invalidated. Thus, the worker can open the safety cover 14 and replace the parts with respect to the parts supply unit 3 without stopping the operation of the mounting machine, and the parts supply unit 3 does not operate unexpectedly and is safe. Exchange work can be performed.

When the replacement work is completed and the safety cover 14 is closed, the limit switch 18 is restored, and the parts replacement switch 22 is released to return to the standard safety control state.

The same operation is performed in the case of component replacement for the component supply unit 2 in standby.

Thus, the parts can be safely replaced without stopping the operation of the mounting machine, and high production efficiency can be secured.

[0023]

As described above, according to the present invention, the drive source of the component supply means which is replacing the component is turned off at the time of component replacement as described above, so that the safety of the worker is ensured and the safety means is provided for the replacement. Even if it is released, the detection of the safety detection means will be invalid, so the mounting operation of the mounting machine can be continued without stopping, and it is possible to continue the component mounting while ensuring the safety of the worker and achieve highly efficient production. Can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic component automatic mounting machine according to an embodiment of the present invention.

FIG. 2 is a front view of an operation unit of the embodiment.

FIG. 3 is a block diagram of safety control means of the embodiment.

FIG. 4 is a flowchart of a safety control operation at the time of component replacement of the embodiment.

FIG. 5 is a perspective view of a conventional electronic component automatic mounting machine.

[Explanation of symbols]

 1 XY table section 2 Component supply unit 3 Component supply unit 4 Mounting head section 12 Left safety cover 14 Right safety cover 16 Limit switch 18 Limit switch 21 Component exchange switch 22 Component exchange switch 23 Standard safety control section 24 Component exchange safety control section 25 NC driver 26 NC driver

Claims (1)

[Claims] 1. A substrate positioning means, two component supply means, a mounting means for taking out an electronic component from an operating component supply means and mounting it on a positioned substrate, and a work for the operation of the component supply means. Safety means for ensuring the safety of the person, safety detection means for detecting an abnormal state of the safety means,
In an electronic component automatic mounter equipped with means for stopping the operation based on a detection signal from the safety detection means, each safety means and safety detection means are provided corresponding to each component supply means, and for the component supply means being stopped. An electronic component automatic mounting machine comprising means for turning off the drive source of the component supply means and for invalidating the detection of the safety detection means corresponding to the component supply means during the component replacement work.