JPH0446729A - Printed board supply and discharge device in printed board hole boring machine - Google Patents

Abstract

PURPOSE:To ensure smooth supply and discharge of a printed board to and from a processing table so as to improve work efficiency, by furnishing a printed board guide mechanism with a guide plate and a transfer means, and by inclining the posture of the guide mechanism by means of an inclining mechanism. CONSTITUTION:This printed board supply and discharge device is equipped with a transfer means 22 and a guide mechanism 21 for the printed board and an inclining mechanism 40 to incline the guide mechanism 21. The transfer mechanism 22 is composed of a belt 31, which is operated selectively in printed board supply direction and discharge direction by a belt drive mechanism 60. Consequently, for supplying a printed board to a processing table 3, the inclining mechanism 40 is operated to lift the guide mechanism 21 to a forward inclined position, and the printed board supplied from the rear end of the guide mechanism 21 is transferred to a processing position by the transfer means 22 and a guide plate 23, while the printed board is held in a required posture on the guide mechanism 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for supplying and discharging printed circuit boards to and from a processing table of a printed circuit board drilling machine.

[Conventional technology]

Normally, when drilling a hole in a printed circuit board, as shown in Fig. 14, a large number of printed circuit boards P are stacked up, backing plates O and R are stacked on top of each other, and these are attached using adhesive tape T and reference pins O.
P is fixed to form a processing unit, and this processing unit is supplied to a printed circuit board drilling machine and executed according to a predetermined cutting program.

Conventionally, in the above-mentioned drilling process, the operation of supplying and discharging the processing unit A to and from the processing table of the drilling machine has been performed manually or by using a robot or the like.

[Problem to be solved by the invention]

However, when performing the above-mentioned supply and discharge operations manually, for example, there is a limit to the continuous operation over a long period of time, and it is difficult. Furthermore, when using robots, etc., a large space is required to install the machine, and it is expensive. As described above, the conventional method is unreasonable both economically and in terms of time. Furthermore, when supplying and discharging printed circuit boards in a multi-axis printed circuit board drilling machine, there is a problem that it is difficult to quickly respond to each axis, impairing the efficiency of the drilling machine.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an apparatus that can accurately and quickly perform operations for supplying and discharging printed circuit boards to and from a processing table of a drilling machine.

[Means to solve the problem]

In order to achieve the above object, the printed circuit board supply/discharge device according to the present invention includes a transfer means for transporting the printed circuit board, and a guide plate that supplies the printed circuit board to a processing position while maintaining a predetermined posture and guides it to a discharge position. and a tilting mechanism for moving the guide mechanism between a forward tilted position when supplying a printed circuit board, a horizontal position when processing a printed circuit board, and a backward tilted position when ejecting a printed circuit board. It is characterized by having

The above-mentioned transfer means may consist of a belt selectively operated in the feeding direction and the ejecting direction of the printed circuit board by a drive mechanism.

Alternatively, the above-mentioned transfer means may consist of a plurality of freely rotating rollers.

[For production]

In the above configuration, when supplying a printed circuit board to the processing table, the tilting mechanism is operated to lift the guide mechanism to a forward tilted position, and the printed circuit board fed from the rear end of the guide mechanism is moved by the transfer means and the guide plate. It is transferred to the processing position while maintaining a predetermined posture on the guide mechanism. When the printed circuit board reaches the processing position, the tilting mechanism moves the guide mechanism to a horizontal position. When the printed circuit board is to be discharged after completion of the drilling process, the tilting mechanism is operated again to lift the guide mechanism to the rearward tilting position, and the printed circuit board is discharged by the transfer means and the guide plate.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 to 9 show a first embodiment of a printed circuit board supply/discharge device according to the present invention. As shown in FIG. 2, the printed circuit board drilling machine 1 has a processing table 3 placed on a bed 2 so as to be movable in the front-rear direction (left-right direction in the figure).
Further, a frame 4 is attached to the center of the bed 2 so as to straddle the processing table 3. The front side of this frame 4 (on the left side in the figure; in the following explanation, the front of the device corresponds to the left side in the figure, and the rear corresponds to the right side in the figure) has a frame that can be moved laterally perpendicular to the traveling direction of the processing table 3. A saddle 5 is provided, and a spindle 6 for drilling is attached to the saddle 5 so as to be movable up and down. 7 is a servo motor for moving the saddle 5 in the above-mentioned lateral direction, and 8 is a servo motor for moving the spindle 6 up and down.

Further, 9 and 10 are a supply stocker and a discharge stocker, respectively, for the processing unit A of the printed circuit board made according to FIG. They are installed adjacent to the table 3, facing each other vertically, and are inclined to facilitate supply and discharge. Further, 11 is a supply conveyor for the processing unit A, and 12 is a discharge conveyor, and the processing unit A sent by the supply conveyor 11 is supplied to the supply stocker 9 by an appropriate extrusion mechanism (not shown).
It is stopped on the supply stocker 9 by a stopper 13 movably provided at the front end of the supply stocker 9 .

The processing table 3, as shown in FIGS. 1 and 7,
It consists of a table main body 15 and an auxiliary table 16 attached thereon, and a magazine 17 for storing a large number of replacement drills is provided in front of the table main body 15. In FIG. 7, 18 is a rail for guiding the processing table, and 19 is a screw shaft for driving the processing table 3.

This printed circuit board drilling machine 1 is equipped with a supply/discharge device 20 according to the present invention for supplying and discharging the machining units onto the machining table 3.

As shown in FIG. 1, this supply/discharge device 20 includes a guide mechanism 21 and a tilting mechanism 40 that tilts the guide mechanism 21.
Equipped with. As clearly shown in FIG. 3, the guide mechanism 21 guides at least two transfer means 22 provided along the longitudinal direction of the auxiliary table 16 and the reference pin OP provided in the processing unit. A pair of holding frames 24.2 provided on both sides of the guide plate 23 and the auxiliary table 16, respectively.
5, and at least two connecting rods 26 that connect the transfer means 22, the guide plate 23, and the holding frames 24 and 25. Reference numeral 27 denotes a receiving plate that supports the holding frames 24 and 25, and projects upward at both ends to enclose the holding frames 24 and 25.

The transfer means 22 includes a support plate 28 as shown in FIG.
A driving pulley 29 and a driven pulley 30 are provided at the rear and front of this support plate 28, respectively, and both pulleys 29 and 3
0 is provided with a belt 31 that is passed around. Each support plate 28
is connected to both holding frames 24, 25 by the connecting rod 26. Further, the drive pulley 29 is fixed to a drive shaft 32 which is rotatably mounted near the rear ends of both holding frames 24, 25, and the driven pulley 30 is rotatably mounted to the front end of the support plate 28. These support plates 28 and connecting rods 26
, the driven pulley 30 and the belt 31 are connected to the auxiliary table 16.
The belt 31 is normally stored in a storage groove 33 carved in the storage groove 33 so that the top surface of the belt 31 is lower than the top surface of the auxiliary table 16 (see FIGS. 1 and 5).

The guide plate 23 cooperates with a guide groove 36 provided in the longitudinal direction of the auxiliary table 16 to guide the reference pin OP of the processing unit A in the front-rear direction along the guide plate 23. The front end of the guide plate 23 forms a stopper 37 as shown in FIG.

Note that the reference pin OP of the processing unit A that has been guided by the guide plate 23 and has reached a predetermined position is placed on the auxiliary table 16.
A support means 35 is provided for pressing and supporting the guide groove 36 against the side wall of the guide groove 36, but this is outside the scope of the present invention and will not be described here.

As shown in detail in FIGS. 6 and 7, the tilting mechanism 40 of the printed circuit board supply/discharge device 20 according to the present invention has the following features:
A support arm 41 is fixed to both ends of the bed 2 and installed so as to sandwich the processing table 3 from both sides, and a swinging rod 42 whose center portion is pivotably supported by the support arm 41
and each end 142 a of the swinging rod when the swinging rod 42 swings,
42b of the guide mechanism 21 so that the holding frame 24,
25, a backing plate 43, 44 attached to the outer surface of the swinging rod 42 with an interval approximately corresponding to the length of the swinging rod 42, a connecting rod 45 with one end pivotally supported at an appropriate position of the swinging rod, and this connecting rod. A lifting member 46 is connected to the other end of the connecting rod 45 and drives the connecting rod 45 up and down. The elevating member 46 is composed of, for example, a Geneva gear mechanism, and is driven by a drive motor 47 to drive the motive wheel 4.
8, the driven wheel 49 rotates intermittently. 5 in the diagram
0 is a driven axle, and 51 is an arm. One end of the arm 51 is fixed to the driven axle 50, and the other end pivotally supports the connecting rod 45. As the driven wheel 49 of the elevating member 46 intermittently rotates, the connecting rod 45 intermittently moves in the vertical direction, and at the same time, each end 42a, 42b of the swinging rod 42 alternately moves to a predetermined upper position and lower position. Move by time interval.

For example, the rear end portion 42a of the vibrating rod 42 comes into contact with the backing plate 43 when moving upward, and together with the backing plate 43, the guide mechanism 2
1 upward and guide mechanism 21 for a predetermined period of time.
is held in a forwardly inclined position as indicated by the chain line 21a in FIG. Similarly, as the front end 42b of the swinging rod 42 moves upward, the guide mechanism 21 moves via the backing plate 44 to the rearward inclined position shown by the chain line 21b in FIG. 6 and is held at that position for a predetermined time. .

In this way, the guide mechanism 21 can be placed in the forward tilted position shown by the chain line 21a, that is, the position in which the printed circuit board is received into the processing unit (hereinafter referred to as the receiving position), and in the horizontal position shown in the solid line, that is, the printed circuit board processing position. , and a backward tilted position shown by a chain line 21b, that is, a position for discharging the machining unit (hereinafter referred to as discharging position).

In this case, the receiving posture 21a and the discharging posture 21b have the same inclination angle as the supply stocker 9 and the discharging stocker IO, respectively, and the upper surface of the guide mechanism 21 and the upper surface of each stocker are on the same plane in each posture. is preferable, and thereby the processing unit A of the printed circuit board can be moved smoothly. Further, in the horizontal position, the upper surface of the guide mechanism 21 is placed at a lower position than the upper surface of the processing table 3, so that the processing unit Δ of the printed circuit board is placed on the processing table.

Referring to FIG. 2, a guide mechanism 21 is provided at the rear end of the bed 2.
A belt drive mechanism 60 for driving the belt 31 of the transfer means 22 is installed on the side of the rear end of the guide mechanism 21 (see FIG. 1). As shown in FIGS. 8 and 9, the belt drive mechanism 60 includes a pair of drive motors 61 and 62 supported by a bracket 63 in a vertically overlapping manner.
Equipped with The bracket 63 is connected to a drive cylinder 65, and is mounted so as to be slidable on the slide table 64 in the direction of the processing table 3 by the drive cylinder 65.

Of the pair of drive motors 61 and 62, the output shaft 66 of the upper drive motor 61 is in the receiving position 21a of the guide mechanism 21.
The output shaft 67 of the lower drive motor 62 is located at a position opposite to the drive shaft 32 when the guide mechanism 21 is tilted to the ejection position 21b.
They are located at opposite positions with the center aligned with each other. At the tip of the drive shaft 32 is a receiving coupling 6B.
An insertion coupling 69 . is provided at the tip of each output shaft 66 . 67 , and the insertion coupling 69 . To is provided for each.

Next, in the above configuration, the operation when supplying the processing unit A of the printed circuit board to the processing table 3 will be explained. First, move the processing table 3 to the rear end position of the bed 2, and
0 drive motor 47 is started and the guide mechanism 21 is tilted to the receiving position 21H for the processing unit A as described above. At this time, the processing unit A is sent to the supply stocker 9 from the supply conveyor 11, and is held on the supply stocker 9 by the stopper 13. Next, supply stocker 9
The stopper 13 is released, and the processing unit A is transferred to the guide mechanism 21 automatically or by an appropriate drive means. At the same time, the drive cylinder 65 of the belt drive mechanism 60 operates to move the bracket 63 and drive motors 61 and 62 in the direction of the processing table 3, and insert the insertion coupling 69 at the tip of the output shaft 66 of the upper drive motor 61 into the guide mechanism 21. while inserting into the receiving coupling 68 of the drive shaft 32;
The drive motor 61 is driven to rotate the belt 31 of the transfer means 22 in the direction of receiving the processing unit A.

As a result, the processing unit A moves its reference pin OP forward along the guide plate 23, and the reference pin OP abuts against the stopper 37 of the guide plate 23 to stop the movement. At this time, an appropriate detection means (not shown) detects the contact with the stopper 37 and stops the rotation of the drive motor 61, and further operates the drive cylinder 65 to move the drive motor 61 backward and guide the output shaft 66. It is separated from the drive shaft 32 of the mechanism 21.

Thereafter, by intermittent operation of the tilting mechanism 40, the guide mechanism 2
1 returns to the horizontal state, that is, the printed circuit board processing position. Here, the tilting mechanism 40 temporarily stops.

As a result, the processing unit A is placed on the processing table 3. After that, a suitable clamping mechanism (for example, support means 35)
Accordingly, the machining unit Δ is fixed on the machining table 3, and moved together with the machining table 3 directly below the spindle 6 in front to perform hole drilling according to a predetermined cutting program.

After the drilling process is completed, the processing table 3 is moved again to the rear end position of the bed 2, and the tilting mechanism 40 is activated there to tilt the guide mechanism 21 to the machining unit A discharge position 21b.

At the same time, the drive cylinder 65 of the belt drive mechanism 60 operates to again move the bracket 63 in the direction of the processing table 3.
The insertion coupling 70 at the tip of the output shaft 67 of the lower drive motor 62 is inserted into the receiving coupling 68 of the drive shaft 32 of the guide mechanism 21, and the drive motor 62 is driven to move the belt 31 of the transfer means 22 into the processing unit. Rotates in the ejection direction of A.

As a result, the processing unit A is sent to the discharge stocker 10 side, and is transferred to the discharge conveyor 12 by appropriate means and carried out.

Although the above-mentioned embodiment shows an example in which a Geneva gear mechanism is used as the tilting device a40, the swinging rod 42 may be rocked by a cylinder instead of this.

Further, in the above embodiment, two drive motors 61 and 62 are provided as drive means for the drive shaft 32 of the guide mechanism 21, but for example, only one drive motor 61 is used to move the cylinder, etc. up and down. It is also possible to move this vertically by means of means and connect it to the drive shaft 32 at each position of the receiving position 21a and the ejecting position 21b.

Next, FIG. 10 shows the printed circuit board supply and operation according to the first embodiment.
A modified embodiment of the guide mechanism 21 of the ejection device 20 is shown. The guide mechanism 80 of this embodiment is of a type that is integrally provided with a belt drive mechanism 60 for the belt 31 of the guide mechanism 21 of the first embodiment, and is driven at the rear end of one holding frame 24 of the guide mechanism 80. The motor 81 is fixed and directly connected to the drive shaft 32.

That is, the belt 31 is rotated in the receiving direction or the discharging direction of the processing unit A by forward and reverse rotation of the drive motor 81.

The rest of the structure is the same as that of the first embodiment, and the same parts are given the same reference numerals and explanations will be omitted.

Next, FIGS. 11 to 13 show a second embodiment of the printed circuit board supply/discharge device according to the present invention. The guide mechanism 90 of this embodiment has a supporting device 9 having a U-shaped cross section as shown in FIG.
It has a structure in which a large number of rollers 93 are rotatably mounted inside the roller 2. 20 The roller 93 is formed by press-fitting an outer ring 96 onto a bearing 95 supported by a support shaft 94.
4 is fixed to the support machine 92 (see FIG. 13). Each roller 93 is formed in such a size that it is recessed from the upper surface of the auxiliary table 16 at all times, that is, when the guide mechanism 90 is in a horizontal position.

In this embodiment, the same tilting mechanism 40 as in the first embodiment is used to tilt the guide mechanism 90. Then, by operating the tilting mechanism 40 and tilting the guide mechanism 90 in the same manner as in the first embodiment, the processing unit A is automatically received and discharged.

At this time, the processing unit A can move on the rollers 93 of the inclined guide mechanism 90 in the receiving direction or the discharging direction due to its own weight. Therefore, unlike the previous embodiments, there is no need to provide a belt drive means.

The rest of the structure is the same as that of the first embodiment, and the same parts are given the same reference numerals and explanations will be omitted.

〔Effect of the invention〕

The printed circuit board supply/discharge device of the present invention includes a guide mechanism for supplying and discharging printed circuit boards to and from the processing table, and a guide plate that guides the printed circuit boards while holding them in a predetermined posture, and a printed circuit board transfer means. In addition, the tilting mechanism allows the guide mechanism to tilt to the receiving position when supplying printed circuit boards, and to the ejecting position when discharging printed circuit boards, making it easy to feed printed circuit boards to and from the processing table. can be discharged automatically, smoothly and accurately,
Improves the work efficiency of printed circuit board drilling machines.

[Brief explanation of drawings]

FIG. 1 shows a printed circuit board supply system according to a first embodiment of the present invention.
A plan view showing the discharge device attached to the processing table,
Figure 2 is an overall side view of the printed circuit board drilling machine equipped with the printed circuit board supply/discharge device shown in Figure 1, and Figure 3 is the
A plan view of the guide mechanism of the printed circuit board supply/ejection device shown in the figure.
4 is a partially sectional side view taken from line IV-IV in FIG. 3; FIG. 5 is a partially sectional side view taken from line ■-■ in FIG. 3;
Fig. 6 is an enlarged side view of the tilting mechanism of the printed circuit board feeding/ejecting device shown in Fig. 1, Fig. 7 is a partial cross-sectional rear view of the tilting mechanism of Fig. 6, and Fig. 8 is the printed circuit board supplying device of Fig. 1.・An enlarged rear view of the belt drive mechanism of the discharge device, FIG. 9 is a plan view of the belt drive mechanism of FIG. 8, FIG. 10 is a plan view of a modified embodiment of the guide mechanism of FIG. 3, and FIG. FIG. 12 is a plan view of the guide mechanism of the printed circuit board supply/discharge device according to the second embodiment of the invention, showing the guide mechanism attached to the processing table.
FIG. 14 is a sectional view taken along the line Xn-xn in the figure, FIG. 14 is an enlarged side view taken from the line Xl1l-XIII in FIG. 11, and FIG. DESCRIPTION OF SYMBOLS 1... Printed circuit board drilling machine, 3... Processing table, 20... Printed circuit board supply/discharge device, 21.80.
90...Guide mechanism, 22.91...Transfer means, 23...Guide plate, 30...Followed pulley, 40...Tilt mechanism. 29... Drive pulley, 31... Belt,

Claims (1)

[Scope of Claims] 1. A guide mechanism for a printed circuit board, comprising a transfer means for transporting the printed circuit board, and a guide plate for supplying the printed circuit board to a processing position while maintaining a predetermined posture, and guiding the printed circuit board to a discharge position; A tilting mechanism for moving the guide mechanism between a forward tilted position when supplying a printed circuit board, a horizontal position when processing a printed circuit board, and a backward tilted position when discharging a printed circuit board. Printed circuit board supply/discharge device in the machine. 2. The printed circuit board feeding/discharging apparatus according to claim 1, wherein the conveying means comprises a belt that is selectively operated in the feeding direction and the discharging direction of the printed circuit boards by a drive mechanism. 3. The printed circuit board feeding/discharging apparatus according to claim 1, wherein said transfer means comprises a plurality of freely rotating rollers.