JPH0737547U - Printed circuit board machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the supply of unused tools and the discharge of tools that have reached the end of their lives, improving workability and improving the operating rate of printed circuit board processing machines. [Structure] On a table 2 of a printed circuit board processing machine, a supply tool cassette 5A for storing an unused tool 6 and a management tool cassette 5B for storing a tool which is in use and / or has reached the end of its life are provided. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printed circuit board processing machine, and more particularly to a printed circuit board processing machine that facilitates tool replacement.

[0002]

[Prior art]

 For example, in a printed circuit board drilling machine, a tool cassette with multiple (several hundred) tools is arranged at one end of the table on which the printed circuit board is placed, and these tools are instructed in the machining program or the tool life It is designed to perform machining while switching based on a replacement command by the.

The holes machined in the printed circuit board may be several types to more than ten types depending on the type of the printed circuit board to be processed. Further, the number of holes to be processed is from several hundred holes to several 10,000 holes. On the other hand, the number of holes that can be machined with one tool is about 3000 holes on average. Therefore, a plurality of tools having the same diameter are stored in the tool cassette, and when the tool in use reaches the end of its life, the used tool is replaced with another tool to continue drilling.

As described above, in order to store a plurality of tools having the same diameter and facilitate the management thereof, the tools stored in the tool cassette include a tool storage location number assigned to each storage location, as well as a tool storage location number. When storing multiple tools of the same diameter in one tool cassette, the same tool number is assigned. Then, if there is a tool with the same tool number that has not reached the end of its service life, it is determined that the tool can be replaced, and machining is continued.

In such a printed circuit board drilling machine, it is necessary to periodically discharge a tool that has reached the end of its life, supply a new tool to the tool, and reset the number of times of tool use stored in the control device. become.

[0006]

[Problems to be solved by the device]

 For this reason, stop the processing machine body, display the tool storage location and the number of times it has been used on the control unit CRT, check the tool that has reached the end of its life, eject it, and insert a new tool there. It had to be supplied and reset the number of times it was used, which not only resulted in poor workability, but also reduced the operating rate of the printed circuit board processing machine.

In view of the above circumstances, it is an object of the present invention to facilitate the supply of unused tools and the discharge of tools that have reached the end of their lives, improving workability and improving the operating rate. It is to provide a printed circuit board processing machine.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the present invention is provided with a supply tool cassette for storing unused tools and a management tool cassette for storing tools that are in use and have reached the end of their life.

[0009]

[Action]

 Unused tools were stored in the supply tool cassette, and tools that had reached the end of their life and tools that had been used even once were stored in the management tool cassette and then stored in the management tool cassette. By using the tool on the management tool cassette side while the tool is available, it is possible to easily supply and discharge the tool, improve workability, and improve the operating rate of the printed circuit board processing machine. .

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. ◆ In Fig. 2, 1 is a printed circuit board. Reference numeral 2 is a table of a printed circuit board drilling machine, which is movably supported by a guide member (not shown). 3 is a nut, which is fixed to the lower surface of the table 2. A feed screw 4 is rotatably arranged so as to be screwed with the nut 3, and is rotationally driven by a servo motor (not shown).

As shown in FIG. 1, the table 2 is divided into a processing area 2A on which a printed circuit board is placed and a storage area 2B in which a tool cassette is arranged. A supply tool cassette 5A for storing 6 and a management tool cassette 5B for storing the tool 6 that has reached the end of its life and the tool 6 that has been used even once are arranged. A tool measuring device 7 is attached to the supply tool cassette 5A. In FIG. 2, reference numeral 8 denotes a slider, which is movably supported by a guide member (not shown). Reference numeral 9 denotes a nut, which is fixed to the back surface of the slider 8. A feed screw 10 is rotatably arranged so as to be screwed with the nut 9, and is rotationally driven by a servo motor 11. A spindle head 12 is movably supported by the slider 8. A nut 13 is fixed to the back surface of the spindle head 12. Reference numeral 14 denotes a feed screw, which is rotatably arranged so as to be screwed with the nut 13 and is rotationally driven by a servomotor 15. Reference numeral 16 denotes a spindle, which is rotatably supported by the spindle head 12. A collet chuck 17 is supported by the spindle 16 so as to be openable and closable, and detachably supports the tool 6. An air cylinder 18 is supported by the spindle head 12 via a bracket 19. A pressure foot 20 is supported by the air cylinder 18.

Reference numeral 40 denotes a control device, which is a paper tape reader 42 that reads a processing program recorded on a paper tape 41, a keyboard 43 that inputs data that is not recorded on the paper tape 41, and input data and a storage device that will be described later. An input / output unit 45 composed of a CRT 44 for displaying contents, an arithmetic unit 46 for comparing various data and arithmetic processing, and a storage unit 50 for storing various kinds of data.

The storage device 50 stores a data table 51 for storing a tool number assigned to each of the diameters of the tools 6 stored in the supply tool cassette 5A and a tool table stored in the supply tool cassette 5A. A data table 52 for storing the tool storage place numbers corresponding to each book, a data table 53 for storing the usable number of each tool 6 up to the life, and a data for storing the number of times the tool 6 has been used. A table 54, a data table 55 for storing the diameter of the tool 6 stored therein, and a data table 56 for storing processing conditions corresponding to the tool number are provided.

With such a configuration, the control device 40 drives the punching machine main body in accordance with the processing program input from the input unit 45 to punch the printed circuit board 1. At this time, every time the spindle head 12 is moved up and down once, the stored contents of the data table 54 of the number of times of tool use of the tool 6 held by the spindle 16 are updated.

When the number of times the tool 6 held by the spindle 16 has been used has reached the tool life set value, or when machining with the tool 6 has been completed and a replacement of the tool 6 is instructed, the spindle 16 The tool 6 held in step 2 is mounted at a position corresponding to the supply tool cassette 5A of the management tool cassette 5B.

When selecting the tool 6 to be used next, based on the data stored in the storage device 50, the computing device 46 first determines whether or not there is a usable tool 6 in the management tool cassette 5B. If there is a usable tool 6, the spindle 16 is moved to the management tool cassette 5B. When there is no usable tool 6, the spindle 16 is moved to the supply tool cassette 5A. Then, the tool 6 to be used next is held and processed.

When the tool 6 is taken out from the supply tool cassette 5A, the data stored in the storage device 50 as the data of the tool 6 on the supply tool cassette 5A side is changed to the data of the tool 6 on the management tool cassette 5B side. And That is, the stored contents of the storage device 50 are rewritten as if the tool 6 taken out from the supply tool cassette 5A is taken out from the management tool cassette 5B. The management tool cassette 5B may store only the tools 6 that have reached the end of their lives.

As described above, by storing the tool 6 that has reached the end of its life and the tool 6 that has been used even once in the management tool cassette 5B, it is possible to easily supply and discharge the tool 6, and to improve workability. It is possible to improve the operation rate of the printed circuit board processing machine.

[0019]

[Effect of device]

 As described above, according to the present invention, a printed circuit board processing machine in which a tool cassette accommodating a plurality of tools is placed on a table and processing is performed while exchanging the tools stored in the tool cassette In the above, since a supply tool cassette that stores unused tools and a management tool cassette that stores tools that are in use and / or have reached the end of their life are provided, it is easy to supply and discharge tools. The workability can be improved, and the operating rate of the printed circuit board processing machine can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of a table of a printed circuit board processing machine according to the present invention.

FIG. 2 is a block diagram of a printed circuit board processing machine.

[Explanation of symbols]

 2 table 5A supply tool cassette 5B management tool cassette 6 tools

Claims (1)

[Scope of utility model registration request] 1. A printed circuit board processing machine in which a tool cassette accommodating a plurality of tools is placed on a table and machining is performed while exchanging the tools accommodated in the tool cassette. A printed circuit board processing machine provided with a supply tool cassette for storing and a management tool cassette for storing tools that are in use and / or have reached the end of their life.