JPH10337607A - Working machine of printed-wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate working of a printed-wiring board in one process by simultaneously carrying out various working of the printed-wiring board with an outline working process at the time of cutting the printed-wiring board out of a work size by furnishing a router pit free to deformedly work the printed-wiring board. SOLUTION: A router pit 1 is furnished with an outline working part 11 to cut a printed-wiring board out of a work size and a chamfering part 12 to chamfer an edge part of the printed-wiring board. Chamfering of a contact part 22 arranged at a position deep from the external form of the printed-wiring board is carried out at the chamfering part 12. Additionally, chamfering is carried out at the chamfering part 12 even by arranging the contact parts 22 facing to each other on the printed-wiring board 21 integrated with a plural number of divisible printed-wiring boards. Consequently, arrangement of the contact parts 22 is neither restricted nor limited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board processing machine provided with a router bit for cutting a printed wiring board from a work size.

[0002]

2. Description of the Related Art FIG. 7 shows a prior art diagram (part 1).
For the external processing of the printed wiring board, for example, a work size 70 of, for example, 330 mm × 500 mm is cut out from a base material of 1 square meter, and as shown in FIGS. The printed wiring board 71 is cut out by the outer shape processing section 61 provided in the bit 51.

On the other hand, as shown in FIG. 1 (b), the chamfering of the contact portion 72 of the printed wiring board 71 is performed by chamfering the printed wiring board one by one with a polishing machine 62 or the like after the outer shape processing of the printed wiring board is completed. 82 is formed. In this chamfering process, the above-described polishing machine 62 moves in one direction on the rail to perform chamfering on the outer end surface of the printed wiring board 71.

For this reason, as shown in FIG. 8A, burrs 83 may be generated in the contact portion 72 in one direction. In a recent high-density printed wiring board, when the pitch of the contact portions 72 is, for example, 1.27 mm, the interval between the contact portions 72 is about 0.15 mm to 0.2 mm, and the inclination when the printed wiring board 71 is inserted is increased. Also, depending on the insertion position accuracy, there is also a problem that the contact portion 72 of the printed wiring board 71 comes into contact with a contact portion other than the contact portion of the connector to be contacted.

[0005] As described above, the processing of the printed wiring board requires two steps of an outer shape processing step and a chamfering processing step. Further, as shown in FIG.
2 is arranged at a position deeper than the outer shape of the printed wiring board 71, when forming the chamfered portion 82,
Since the above-mentioned sanding machine 62 cannot be used, it is necessary to perform chamfering one by one by hand.

In recent years, in electronic devices such as portable information processing devices such as notebook-type personal computers and card-type personal computers, there has been an increasing demand for reducing the size of the devices. It is becoming necessary to optimally arrange the contact portion including the size of the contact portion.
For this reason, the number of printed wiring boards in which the contact portions are penetrated from the outer shape of the printed wiring board is increasing, and the chamfering by hand tends to increase.

When a relatively small-sized printed wiring board is formed, a printed wiring board in which a plurality of printed wiring boards can be divided after components are mounted is often used. In this case, as shown in FIG.
So that a plurality of printed wiring boards 71 can be divided from
For example, a V-groove portion 84 that has been subjected to V-cut processing is formed, and a plurality of printed wiring boards 71 are integrally cut out. Thereafter, the contact portion 72 is chamfered by using the above-described polishing machine 62.

Since the contact portion is chamfered in the same manner as described above, the contact portion 72 is not formed at the divided portion, but at the position of the end face of the outer portion so as to enable machining with a sander or the like. Be placed. That is, in consideration of chamfering, the arrangement of the contact portions is restricted or limited.

[0009]

As described above, the prior art has the following problems.

1) Processing of a printed wiring board requires two steps, an outer shape processing step and a chamfering processing step.
In the chamfering process, unless the printed wiring board is accurately positioned, the chamfering accuracy is poor.

2) The number of steps is increased, and the processing of the printed wiring board is complicated.

[0013] 3) In the chamfering process using a grinder, since a concave R is formed on the edge of the printed wiring board in accordance with the R of the grinder, the contact portion is easily peeled.

4) In the chamfering by the polishing machine, burrs are generated in the contact portions, and the reliability of the connection between the printed wiring board and the connector for external connection is reduced.

5) The chamfering by the polishing machine is limited to the contact portion arranged on the outer shape of the printed wiring board.

6) In a printed wiring board in which a plurality of dividable printed wiring boards are integrated, the arrangement of the contact portions is restricted or limited.

[0016]

In order to solve the above problems, the present invention takes the following measures.

When a printed wiring board is cut out from a work size, various kinds of processing are performed simultaneously with the outer shape processing step in addition to the outer shape processing of the printed wiring board.

By taking the above means, various processes of the printed wiring board are performed in one process, and the printed wiring board is cut out from the work size.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention adopts the following embodiments.

The printed wiring board is provided with a router bit 1 that enables processing of an irregular shape.

Further, a router bit 1 is provided together with a router bit for cutting a printed wiring board from a work size.

Further, in the chamfering process as shown in FIGS. 1 and 2, the router bit 1 includes a chamfered portion 12 for forming a chamfered portion 32 on the contact portion 22 of the printed wiring board 21.

Further, as shown in FIG. 3, the router bit 1 includes an R-shaped chamfered portion 13 for forming a convex R-shaped chamfered portion 33 on the contact portion 22 of the printed wiring board 21.

Further, the router bit is provided with a guide processing portion for forming a printed wiring board guide on the end face of the printed wiring board.

Further, as shown in FIG. 4, the router bit 1 is provided with a guide processing section 15 for forming a concave printed wiring board guide section 35 on the end face of the printed wiring board 21.

Further, as shown in FIG. 5, the router bit 1 is provided with a guide processing part 16 for forming a convex printed wiring board guide part 36 on the end face of the printed wiring board 21.

Further, as shown in FIG. 6, the router bit 1 is provided at a predetermined position on the printed wiring board 21 with the countersink portion 3.
7 is provided with a counterbore processing portion 17 for forming the counterbore.

By employing the above-described embodiment, the following operation works.

When cutting the printed wiring board from the work size, various processing of the printed wiring board is performed simultaneously with the outer shape processing step, so that the processing of the printed wiring board can be easily performed in one step.

When a printed wiring board is cut out from a work size, only a necessary portion of the printed wiring board is used by using a router bit capable of processing the printed wiring board in an irregular shape and a router bit cutting out the printed wiring board from the work size. Is subjected to irregular processing. Since various processes of the printed wiring board are performed simultaneously with the outer shape processing step, the processing of the printed wiring board can be easily performed in one process.

In the embodiment shown in FIG. 1 to FIG. 3, since the outer shape processing and the chamfering processing are performed in one step, the chamfering processing does not require positioning, and the chamfering accuracy such as the chamfer dimension and the flatness of the chamfer surface is improved. improves. In addition, the chamfering process can be performed into a desired shape, and by performing optimal chamfering on the contact portion, separation of the contact portion can be prevented and a proper insertion force of the printed wiring board can be obtained. In addition, the arrangement of the contact portions formed on the printed wiring board is not limited to the shape of the printed wiring board, and all the contact portions arranged on the edge of the printed wiring board are chamfered. Further, in a printed wiring board in which a plurality of divisible printed wiring boards are integrated, the arrangement of the contact portions is not restricted or limited.

In the embodiment shown in FIGS. 4 and 5, the guide of the printed wiring board is formed compactly in the mounting form of the printed wiring board. Further, in the cooling structure, ventilation for cooling is improved, and heat radiation efficiency is improved. Further, the accuracy of positioning the printed wiring board is improved.

In the embodiment shown in FIG. 6, countersinking is performed simultaneously with external machining and chamfering, thereby facilitating countersinking.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical embodiment according to the present invention will be described with reference to FIGS.

FIG. 1 is a diagram (part 1) of an embodiment of the present invention.

In FIG. 1A, a router bit 1 is a contour processing section 1 for cutting a printed wiring board from a work size.
1 and a chamfered portion 12 for chamfering the edge of the printed wiring board.

FIG. 4B shows a chamfering process using a router bit. In the figure, when the router bit 1 cuts out the printed wiring board 21 from the work size, the chamfered portions 32 can be formed in the same step on both sides of the edge of the printed wiring board 21 where the contact portions 22 are formed.

FIG. 2 is a diagram (part 2) of the embodiment of the present invention. FIG. 3 illustrates cutting out of a printed wiring board and chamfering.

In the figure, in the vicinity of the contact portion 22 which requires chamfering, the work size 20 includes another preliminary machining including a router bit insertion hole 26 for inserting the router bit 1 shown in FIG. 1 in advance. Processed by the router bit. Thereafter, the above-mentioned router bit 1 is inserted into the router bit insertion hole 26, and the point a 23 to the point b 2
Move to 4. Further, the chamfered portion 32 is moved from the point b 24 to the point c 25 to a predetermined width of the contact portion 22.
To form At this time, the outer shape processing of the contact part 22 is performed simultaneously with the processing of the chamfered part 32.

Thereafter, the external processing of the other part is processed by another router bit. In the case where all the edges may be chamfered in the external processing of the printed wiring board, the external processing of the other parts can be performed using the router bit 1 described above.

In the configuration shown in FIGS. 1 and 2, it is also possible to chamfer a contact portion disposed at a position deeper than the outer shape of the printed wiring board. Furthermore, in a printed wiring board in which a plurality of divisible printed wiring boards are integrated, chamfering can be performed even when the arrangement of the contact portions 22 is opposed to each other as shown in FIG. 1B. The arrangement of the contact portion is not restricted or limited.

FIG. 3 is a diagram (part 3) of the embodiment of the present invention.

In FIG. 1A, a router bit 1 is a contour processing section 1 for cutting a printed wiring board from a work size.
1 and an R-shaped chamfering portion 13 for performing a convex R-shaped chamfering process on the edge of the printed wiring board.

FIG. 4B shows a chamfering process using a router bit. In the figure, when cutting the printed wiring board 21 from the work size 20, the router bit 1 may form the R-shaped chamfered parts 33 on both sides of the edge of the printed wiring board 21 on which the contact part 22 is formed in the same process. it can. The shape of the chamfered portion can be appropriately provided in consideration of the thickness of the printed wiring board, the contact pressure of a connector connected to the printed wiring board, and the like. This makes it possible to form an optimum chamfered portion on the printed wiring board.

FIG. 4 is a diagram (part 4) of the embodiment of the present invention.

In FIG. 6A, the router bit 1 cuts out the printed wiring board 21 from the work size, and forms a V-shaped concave printed wiring board guide portion 35 on the end surface of the printed wiring board 21. A guide processing part 15 is provided.

In FIG. 2B, the router bit 1 includes a contour processing section 11 for cutting the printed wiring board 21 from the work size, and a guide processing section for forming a concave printed wiring board guide section 35 on the end surface of the printed wiring board 21. 15 are provided.

FIG. 5 is a diagram (part 5) of the embodiment of the present invention.

In FIG. 5A, the router bit 1 cuts out the printed wiring board 21 from the work size and forms a V-shaped convex printed wiring board guide portion 36 on the end face of the printed wiring board 21. Guide processing part 1
6 are provided.

FIG. 3B shows that the router bit 1 is provided with a concave guide processing section 16 to form a concave printed wiring board guide section 36 on the end surface of the printed wiring board 21 and to reduce the printed wiring board from the work size. 21 can be cut out.

In the configuration shown in FIGS. 4 and 5, when the router bit 1 cuts out the printed wiring board 21 from the work size, the printed wiring board guide portions 35 and 36 are formed on the end surface of the printed wiring board 21 in the same process. be able to.

FIG. 6 is a diagram (part 6) of the embodiment of the present invention.

In the figure, the router bit 1 is placed at a predetermined position on the printed wiring board by a counterbore processing portion 17 having the same shape as the router bit shown in FIG. 37 can be formed.

In FIGS. 3 to 5, the portion of the printed wiring board requiring an irregular processing is processed by using the above-mentioned router bit 1, and the external processing of the other part is performed by another router bit. However, in the case of processing the external shape of the printed wiring board in the same manner as in FIG. Can also be processed.

Further, in FIG. 6, it is also possible to use the router bit 1 to perform an outer shape processing for cutting a printed wiring board from a work size.

[0056]

As described above, according to the present invention, the following effects can be obtained.

Since the printed wiring board is provided with a router bit capable of processing an irregular shape, when the printed wiring board is cut out from the work size, various processing of the printed wiring board is performed simultaneously with the outer shape processing step. Can be easily processed in one step. Further, the number of processing steps for the printed wiring board can be significantly reduced.

Further, since there are provided a router bit capable of processing the printed wiring board in an irregular shape and a router bit for cutting the printed wiring board from a work size, it is possible to apply the deformed processing only to a necessary portion of the printed wiring board. it can. And since various processes of a printed wiring board are performed simultaneously with an outer shape processing step, processing of a printed wiring board can be easily performed in one process.

Further, since the router bit is provided with a chamfered portion for forming a chamfered portion on the contact portion of the printed wiring board, the outer shape processing and the chamfering process are performed in one step, so that in the chamfering process, the printed circuit board is formed. Chamfering can be performed without requiring positioning. Further, the dimensions and flatness of the chamfer are improved, and a highly accurate chamfer can be obtained. In addition, the chamfering can be performed into a desired shape, and by performing optimal chamfering on the contact portion, separation of the contact portion can be prevented and an appropriate insertion force of the printed wiring board can be obtained. Further, the chamfering of the contact portion formed on the printed wiring board can be performed on the recessed contact portion arranged at the edge of the printed wiring board. Further, in a printed wiring board in which a plurality of dividable printed wiring boards are integrated, the arrangement of the contact portions is not restricted or limited.

Further, the router bit is provided with a guide processing portion for forming a printed wiring board guide on the end face of the printed wiring board. The guide processing section may include a guide processing section that forms a concave printed wiring board guide section on the end surface of the printed wiring board, or may include a guide processing section that forms a convex printed wiring board guide section. . In the above embodiment, in the mounting structure of the printed wiring board, the guide of the printed wiring board can be formed compactly. In the cooling structure, the ventilation is improved and the heat radiation efficiency can be improved. Further, the accuracy of positioning the printed wiring board can be improved.

Furthermore, since the router bit is provided with a countersunk counterbore processing part for forming a countersunk counterpart at a predetermined position on the printed wiring board, the countersunk processing can be performed simultaneously with the outer shape processing step and the chamfering processing step. In addition, the counterbore processing can be facilitated.

[Brief description of the drawings]

FIG. 1 is a diagram (part 1) of an embodiment of the present invention.

FIG. 2 is a diagram (part 2) of the embodiment of the present invention.

FIG. 3 is a diagram (part 3) of the embodiment of the present invention;

FIG. 4 is a diagram (No. 4) of the embodiment of the present invention;

FIG. 5 is a diagram (No. 5) of the embodiment of the present invention;

FIG. 6 is a view (No. 6) of the embodiment of the present invention;

FIG. 7 is a diagram (No. 1) of the related art.

FIG. 8 is a diagram (No. 2) of the related art.

FIG. 9 is a diagram (No. 3) of the related art.

[Explanation of symbols]

 1: Router bit 12: Chamfering part 13: R-shaped chamfering part 15: Guide processing part 16: Guide processing part 17: Countersinking processing part

Claims (8)

[Claims] 1. A machine for processing a printed wiring board, comprising a router bit (1) capable of processing the printed wiring board in an irregular shape. 2. The printed wiring board processing machine according to claim 1, wherein said router bit is provided together with a router bit for cutting a printed wiring board from a work size. 3. The print according to claim 1, wherein the router bit (1) includes a chamfered portion (12) for forming a chamfered portion on a contact portion of a printed wiring board. Wiring board processing machine. 4. The router bit (1) according to claim 3, further comprising an R-shaped chamfered portion (13) for forming a convex R-shaped chamfered portion on a contact portion of the printed wiring board. The printed wiring board processing machine described. 5. The router bit (1) includes a guide processing part (15, 16) for forming a printed wiring board guide part on an end face of the printed wiring board. The printed wiring board processing machine according to the above. 6. The print according to claim 5, wherein the router bit (1) includes a guide processing part (15) for forming a concave printed circuit board guide part on an end face of the printed circuit board. Wiring board processing machine. 7. The router bit (1) according to claim 5, wherein the router bit (1) includes a guide processing portion (16) for forming a convex printed wiring board guide portion on an end face of the printed wiring board. Processing machine for printed wiring boards. 8. A countersink processing part (17) for forming a countersink part at a predetermined position on a printed wiring board, wherein the router bit (1) is provided. 3. The printed wiring board processing machine according to 2.