JPH04250955A - Control unit for feed of work - Google Patents

Abstract

PURPOSE:To set an unworked work and a recognition card in an optional order, and to prevent a defective work from generating with the correspondence of the set work and recognition card being mistaken. CONSTITUTION:A work storage means 42, a recognition card 71 stored in a card storage 70 with the information specifying the kind of a work 72 being given, a card reader 60 reading the work information and a work transfer means 43 are provided. The size of the work 72 under transfer is detected by work size detection means 50-54. A decision means 34 which decides as to whether or not the contents of the detected work size and the work size information of the pertinent work stored in a memory means 31 coincide with the both being compared, is provided. In the case of a negative decision result being obtained a work stoppage is commanded to a work processing device by a work stoppage command means 20.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece supply control device, and more particularly to a workpiece supply control device suitable for controlling the supply of various types of workpieces to a workpiece processing device.

0002

2. Description of the Related Art As a printed board punching machine capable of automatic operation, one equipped with a work supply control device for automatically feeding printed boards is used. A conventional workpiece supply control device can supply a large amount of workpieces to a printed board punching machine. However, in recent years, as the use of CAM in printed board production lines has progressed, a device that can supply a large amount of different types of workpieces to a printed board punching machine is desired. In this case, it is necessary to prepare in advance machining information such as machining condition data and machining position data that differs for each workpiece in a series of machining operations in accordance with the order in which the workpieces are supplied.

0003

[Problems to be Solved by the Invention] However, in the prior art, before setting an unprocessed workpiece in the workpiece supply control device and starting processing, it is necessary to set processing condition data, processing position data, and the processing order to the control device. A method of registering a schedule or a method of controlling the machining of a workpiece according to a recognition card storing machining condition data and machining position data has been proposed. However, when unprocessed workpieces are set in the workpiece supply control device in the wrong order, the incorrect setting cannot be detected and there is a risk that defective workpieces will be produced. An object of the present invention is to set an unprocessed workpiece and a recognition card in an arbitrary order, and to prevent the generation of defective workpieces even if the set workpiece and the recognition card are mismatched. The object of the present invention is to provide a supply control device.

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a workpiece storage means for storing workpieces, a card storage device arranged at a predetermined interval in the workpiece storage means, and a card storage means for storing workpieces. a recognition card stored in a card storage device, a card reader that reads the code of the workpiece displayed on the recognition card, and a workpiece stored in the workpiece storage means from the workpiece transport start position. A workpiece transport means for transporting the workpiece to the workpiece supply position to the processing device, a storage means for storing workpiece size information and processing conditions in association with the type of workpiece, and a workpiece sizer for detecting the size of the workpiece to be transported to the workpiece supply position. The detection means compares the detection output of the work size detection means with the work size information corresponding to the code of the work read by the card reader among the information stored in the storage means and determines whether the contents of the two match. A workpiece supply control device is configured, which has a determination means for determining, and a processing stop command means for outputting a processing stop command to the workpiece processing device when a negative judgment result is obtained by the judgment means.

[0005]

[Operation] After the workpiece is set in the workpiece storage means, the size of the workpiece is detected while the workpiece is being transported to the workpiece supply position. At this time, the type of workpiece is read by a card reader. Then, the determination means compares the detected workpiece size with workpiece size information of the corresponding workpiece among the information stored in the storage means. When the judgment means obtains a negative judgment result indicating that the two contents do not match, a processing stop command is output to the workpiece processing device, so that the size of the workpiece to be processed is determined according to the workpiece processing information. When the size is different, processing of the unprocessed workpiece is stopped. Therefore, even if an unprocessed work is set in the wrong correspondence with the recognition card, it is possible to prevent the occurrence of defective work.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 10 is a printed board punching machine, 20 is a numerical control device, and 30 is a data management and retrieval unit, which is connected to the numerical control device 20. Reference numeral 40 denotes a work supply device, which is attached to the printed board punching machine 10. Reference numeral 50 denotes a workpiece detector, which is provided so as to face the workpiece conveyance path of the workpiece supply device 40. Reference numeral 60 denotes a card reader, which is provided in the work supply device 40. A card storage device 70 is fixed to the magazine of the work supply device 40 at predetermined intervals. 71 is a recognition card on which a code indicating the type of work is displayed. 72 is a workpiece.

The numerical control device 20 includes a control section 21 that controls the printed board punching machine 10 and the workpiece detector 50.
and a card reader control unit 22 which is connected to the card reader 60 and receives a code indicating the size of the workpiece 72 applied from the workpiece detector 50 and a code indicating the type of the workpiece 72 applied from the card reader 60; The code and size of the work 72 applied from 22 are sent to the data management search unit 30, and the code and size of the work 72 applied from the data management search unit 30 are sent to the data management search unit 30.
It consists of a data input/output processing section 23 that receives processing conditions and processing data corresponding to the code and registers them in the control section 21, and an operation panel 24 that inputs data directly to the control section 21.

The data management search unit 30 stores the codes of various workpieces 72, the corresponding sizes of the workpieces 72, machining conditions, and machining data on the hard disk 3.
1, a keyboard 32 for writing and correcting data on the hard disk 31, and a CRT 33 for displaying the operation contents of the keyboard 32 and the contents stored in the hard disk 31;
The data input/output processing unit 23 is connected to the hard disk 31 and the keyboard 32, and is used to exchange data between the hard disk 31 and the keyboard 32, and to change the code and size of the workpiece 72 applied from the data input/output processing unit 23. Based on this, the size of the same code stored in the hard disk 31 is called up, the two sizes are compared, it is determined whether the two sizes match, and when a negative determination result is obtained,
It consists of a host computer 34 that issues a command to stop processing.

[0010] The work supply device 40 includes a pedestal 41;
A plurality of support members (not shown) are movably supported on this pedestal 41 and internally support the workpieces 72 at predetermined intervals.
, a magazine 42 in which the workpieces 72 are arranged, a means (not shown) for moving the magazine 42 one pitch at a time in the direction in which the works 72 are arranged, and a means (not shown) for carrying out the workpieces 72 from the magazine 42. ) A work transport unit 43 that transports the work 72 carried out from the magazine 42 to a supply position to the printed circuit board punching machine 10, a drive section 44 that drives the work transport unit 43, the numerical control device 20, and the work detector. 50, the drive unit 4
4.

The workpiece detector 50 includes a plurality of detectors 51, 52, which are arranged at the end of the workpiece transport unit 43 on the magazine 42 side so as to face the workpiece 72 transported by the workpiece transport unit 43. 53 and 54. The detector 51 is connected to the card reader control section 22 and the control section 45, and the other detector 52
, 53, and 54 are connected to the card reader control section 22.

[0012] The card reader 60 is connected to the magazine 4.
The card storage device 70 is fixed to the frame 41 so as to face the movement path of the card storage device 70 fixed to the card storage device 2 .

Next, the operation of the present invention will be explained based on the flowchart of FIG.

First, after a plurality of workpieces 72 are stored in the magazine 42 and a recognition card 71 is stored in the card storage device 70, when a processing start command is output by operating the operation panel 36, the control section 21 A work supply command is output to 45 (step 100). As a result, when the drive unit 44 is driven by a control signal from the control unit 21, the workpiece conveyance unit 43 starts conveying each workpiece 72.

Each workpiece 72 is sequentially transported from a workpiece transport start position to a workpiece supply position to the printed board punching machine 10. At this time, the horizontal dimension of each workpiece 72 is measured by the workpiece detector 5.
1, the vertical dimensions are detected by the workpiece detectors 52, 53, and 54, respectively (step 101). When a certain number of works, for example four works 72, are transported, the contents of the recognition card 71 as shown in FIG. 4 are read by the card reader 60 (step 102). The detection outputs of the workpiece detectors 51 to 54 as well as the output signals of the card reader 60 are sent to the card reader control section 22 and the data input/output processing section 2.
3 to the host computer 34. Here, the host computer 34 includes the data input/output processing unit 23
5, a work size code corresponding to the type of work 72 is called from the hard disk 31 (step 103). Next, the host computer 34 compares the called work size code with the code related to the work size detected by the work detectors 51 to 54, and checks whether the contents of the two match (step 104). At this time, when a comparison result is obtained that the contents of the two do not match, a processing stop command is output from the host computer 34 to the numerical control device 20, and the processing on the workpiece 72 by the printed board punching machine 10 is stopped, and at the same time, CRT33
An image indicating that the work sizes are different is displayed on the screen (step 105).

On the other hand, when a matching result is obtained that the workpiece sizes match, as shown in FIG. 5, processing information regarding processing conditions and processing data for the corresponding part number is retrieved from the hard disk 31 (step 106). This content is registered in the control unit 21 (step 107). This processing information is converted into numerical control data by the control unit 21, and the drive of the printed board punching machine 10 is controlled according to this data. Then, the drilling machine 10 sequentially processes the workpiece 72 (step 108). After that, when the host computer 34 reads the data indicating the end of machining attached to the last position of the machining position data, a machining end command is output from the host computer 34, but until then, machining of the workpiece 72 continues. (Step 1
09). When the processing completion command is input to the control unit 21, the operation of the printed board punching machine 10 is stopped by the command from the control unit 21, and a work collection command is output from the control unit 21 to the control unit 45 (step 110). . When the drive section 44 drives the workpiece transport unit 43 in accordance with this command, the processed workpiece 72 is collected into the magazine 42. After that, it is determined whether or not machining has been completed for all the workpieces 72 (step 111), and if there is an unprocessed workpiece 72, the process returns to step 100, and if there is no unprocessed workpiece 72, this routine is executed. All ends.

According to this embodiment, when the size of the workpiece 72 set in the magazine 42 and the size of the workpiece designated by the recognition card 71 are different, the workpiece 72 transported to the punching machine 10 side is not processed. Since the operation of the punching machine 10 is stopped before the workpiece 72 is set in the magazine 42 due to the incorrect correspondence with the recognition card 71, the generation of defective workpieces can be prevented. I can do it. In the embodiment described above, it is also possible to store work size information in the recognition card 71.

[0018]

[Effects of the Invention] As explained above, according to the present invention,
In the process of transporting the work, the work size information about the work read by the card reader among the information stored in the storage means is compared with the detection information of the work detector, and if the contents of the two differ, the work is detected. Since a processing stop command is output to the workpiece processing device, it is possible to prevent the occurrence of defective workpieces even if the workpieces are set in the wrong correspondence with the recognition card.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram of the apparatus shown in FIG. 1;

FIG. 3 is a flowchart for explaining the operation of the apparatus shown in FIG. 1;

FIG. 4 is an explanatory diagram of the configuration of a recognition card.

FIG. 5 is an explanatory diagram of the configuration of a hard disk.

[Explanation of symbols]

10 Printed board punching machine 20 Numerical control device 21 Control section 22 Card reader control section 23 Data input/output processing unit 30 Data management search department 31 Hard disk 34 Host computer 40 Work supply device 50 Workpiece detector 51 Workpiece detector 52 Workpiece detector 53 Workpiece detector 54 Workpiece detector 60 Card reader 71 Recognition card 72 Work

Claims (1)

[Claims] [Claim 1] Work storage means for storing a work;
This work storage means has card storage units arranged at predetermined intervals and a code indicating the type of workpiece, and a recognition card stored in the card storage unit and a code of the workpiece displayed on the recognition card. a card reader to read,
a workpiece transport means for transporting the workpiece stored in the workpiece storage means from a workpiece transport start position to a workpiece supply position to the workpiece processing device; a storage means for storing workpiece size information and processing conditions in association with the type of workpiece; A workpiece size detection means for detecting the size of the workpiece to be transported to the workpiece supply position, and a workpiece size corresponding to the workpiece code read by the card reader among the detection output of the workpiece size detection means and the information stored in the storage means. a determination means for comparing the information and determining whether the contents of the two match;
A workpiece supply control device comprising processing stop command means for outputting a processing stop command to a workpiece processing device when a negative judgment result is obtained by the judgment means.