JPH0322932Y2 - - Google Patents

Description

[Detailed explanation of the idea] 【overview】

The present invention relates to a pattern cutting device that automatically cuts patterns on the surface layer of a printed board.The purpose of the present invention is to provide a pattern cutting device that has excellent workability and can perform pattern cutting work accurately. a flat-blade cutter held movably up and down at the lower end of a slider that is rotatably and vertically movable mounted in the interior; and when the slider is rotated, the cutter is attached to a pattern on a printed board to be cut in plan view. a motor positioned at orthogonal positions; a cylinder that moves the slider up and down with a predetermined stroke; a stopper that sets the end position of the downward stroke of the slider at an arbitrary height above the printed board; and a stopper that moves the cutter in the projecting direction. and a spring that applies elastic pattern cutting pressure to the cutter at the end position of the downward stroke of the slider.

[Industrial application field]

The present invention relates to a pattern cutting device that automatically cuts patterns on the surface layer of a printed board.

[Conventional technology]

Conventionally, cutting the pattern on the surface layer of a printed board has been carried out manually with a cutter knife or by milling the surface of the printed board with an end mill (milling cutter).

[Problem that the idea aims to solve]

However, in the former case, it is necessary to place fine patterns in precise positions without cutting other patterns, and in cases such as multilayer printed boards, it is necessary to avoid cutting patterns placed on the lower layer. The latter method has the disadvantage of poor workability because it requires cutting at a certain cutting depth, and the latter method has the disadvantage of producing a large amount of cutting chips, which poses the risk of pattern shot. It was hot. The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide a pattern cutting device that has excellent workability and can accurately perform pattern cutting work.

[Means to solve the problem]

According to the present invention, the above objects include: a flat-blade cutter held movably up and down at the lower end of a slider mounted rotatably and movably up and down in a fixed block; and rotating the slider to cut the cutter. a motor positioned at a position perpendicular to the pattern on the printed board to be printed in plan view; a cylinder that moves the slider up and down with a predetermined stroke; and a cylinder that moves the slider up and down at a desired height on the printed board. By providing a pattern cutting device comprising a stopper for setting, and a spring that biases the cutter in the projecting direction and applies elastic pattern cutting pressure to the cutter at the end position of the downward stroke of the slider. achieved.

[Effect]

Based on the above configuration, the pattern cutting device according to the present invention cuts a pattern by pressing a flat blade cutter attached to the lower end of a slider against a pattern to be cut, and the posture of the cutter in the rotational direction is determined by a motor that controls the slider. Controlled by rotating to position. Further, the cutter cuts the pattern using elastic pressure applied by a spring, thereby preventing damage to the printed board or the underlying pattern. Furthermore, the end position of the downward stroke of the slider is made variable so that an appropriate cutting pressure can be applied to the pattern by adjusting the elastic pressure, that is, the amount of deflection of the spring.

Embodiments Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partially sectional front view of a pattern cutting device according to the present invention, and FIG. 2 is a side view thereof. This pattern cutting device includes a cutter mechanism 1 to which a flat-blade cutter 2 is attached, a motor 3 for rotating the cutter 2 in an arbitrary direction, and a cylinder 4 for moving the cutter 2 in the vertical direction. The cutter mechanism 1 is attached to a base plate 5 and supported in a vertically suspended state. In addition, it has a ball spline shaft 6 in its center, and a cutter 2 is attached to its tip. After this cutter 2 is inserted into a cutter holder 7, it is tightened with a nut 8. The cutting edge of the cutter 2 is attached to the cutter holder 7 in a fixed rotational direction positional relationship. This cutter holder 7 is
The upper part of the cutter 2 has a hollow cylindrical shape as viewed from the opposite side of the drawing from the mounting surface, one end of the ball spline shaft 6 is loosely inserted into the inside thereof, and one end of the slider 9 slides on the outer peripheral surface of the upper part. It is inserted freely.
A spline bearing 12 is attached to the inside of the other side of the slider 9, and the ball spline shaft 6 is fitted into this spline bearing 12. Furthermore, a vertically elongated notch 10 is bored in one side of the slider 9 on the lower side in the drawing, and a rotation stop pin 11 is fitted through the notch 10 so as to be substantially orthogonal to the vertical axis of the cutter holder 7. . and,
A spring (compression) 13 is installed between the cutter holder 7 and the spline bearing 12.
Further, on the outer peripheral surface of the slider 9, a linear motion stroke 1 accommodated in a fixed block 14 is provided.
5 is fitted, thereby enabling the slider 9 to move in the axial direction and rotate, and the ball spline shaft is fitted with a bearing (angular ball bearing) 1.
It is supported by a bearing mounting plate 17 via 6. Next, a gear 19 is attached to the supporting end of the ball spline shaft 6 with double nuts 18, 18, and is connected to the motor 3 via gears 20, 21 that mesh with the gear 19. A rotating disk 22 for position detection is attached to the lower part of the motor 3, and a sensor 23 for detecting this is provided near the rotating disk 22. Further, the cylinder 4 for moving the cutter 2 up and down is provided on the back of the cutter mechanism 1,
A locking piece 25 having an open end shaped like a Y in plan view is attached to the tip of the operating rod 24, and the open end holds the lower part of the slider 9 of the cutter device 1. In the above-mentioned locking piece 25, there is a spring (tension) 2 on the side opposite to the cutter device 1 with respect to the cylinder 4.
6 is attached to assist the operation when the actuating rod 24 is retracted. On the other hand, vertical stoppers 28 and 29a are provided near the cutter mechanism 1 and at an intermediate position with the printed board 27 below.
is provided. The stopper 28 regulates the stop position of the slider 9 when cutting the pattern on the surface layer of the printed board 27, and is adjustable. By changing the height position of the stopper, the cutter 2 can cut the pattern. The pressure can be adjusted. Further, 28a defines the stop position of the slider 9 when peeling off the pattern after cutting. To explain the operation of the pattern cutting device of the present invention having the above configuration, first, the printed board 27 attached to the XY table (not shown) is
The pattern cutting position is moved to a position directly below the cutter 2. Here, as shown in Fig. 3, the arrangement direction of the pattern 29 is 0°, 45°, 90°,
Since the angles are various, such as 135 degrees, it is necessary to rotate the cutting edge of the cutter 2 in a direction substantially perpendicular to the pattern when cutting the pattern. For this reason, the motor 3 is
rotates, thereby causing the ball spline shaft 6 to rotate via the gears 21, 20, and 19, and the spline bearing 12, that is, the slider 9 to rotate. Then, the cutter holder 7 integrated therewith is rotated by the rotation stop pin 11, and the cutter 2 attached to the cutter holder 7 is rotated. Next, the cylinder 4 is actuated and its actuating rod 24 is extended, so that the slider 9 of the cutter mechanism 1 is lowered. and,
Although the cutter 2 comes into contact with the printed circuit board 27, the slider 9 still descends and stops at the position where its lower end comes into contact with the stopper 28. During this time, the cutter 2 and the cutter holder 7 compress the spring 13, and the reaction force of the spring 13 is applied to the pattern 29, thereby cutting the pattern 29. Therefore, if the printed board 27 is slightly warped, the spring 1
3 can be absorbed. Thus pattern 2
When one side of the pattern 29 is cut, the cylinder 4 is operated again to lift the cutter 2 as shown in FIG. 4, and the XY table is moved a distance L in the same way as before to cut the other side of the pattern 29. This cut piece is then peeled off. When peeling, remove the printed board 27.
In order to apply pressure to a level that does not damage the pattern 29, the stopper 28a is projected to stop the slider 9 at a higher position than the position at which the pattern 29 is cut.

[Effect of the idea]

Since the present invention is constructed as described above, by using the cutter rotation mechanism that positions the cutter 2 at an arbitrary position, it is possible to cut the pattern 29 substantially at right angles to the change in the arrangement direction of the pattern 29. Also,
By moving the cutter 2 up and down and cutting the pattern 29 with elastic pressure, changes in cutting pressure due to warping of the printed board 27 can be absorbed.
The pattern 29 can be cut without damaging the printed board 27. Furthermore, since pattern cutting is performed using a single-edged cutter, it is possible to prevent a large amount of fine powder from being produced.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of the pattern cutting device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a diagram showing the pattern arrangement direction and the positional relationship with the cutter, and Fig. 4 is the cutter. It is a diagram showing the main points. In the figure, 1... cutter mechanism section, 2... cutter, 3... motor, 4... cylinder, 5... base plate, 6... ball spline shaft, 7...
Cutter holder, 8, 18...nut, 9...slider, 10...notch hole, 11...rotation stop pin,
12... Spline bearing, 13... Spring (compression), 14... Fixed block, 15... Linear motion stroke, 16... Bearing, 17...
Bearing mounting plate, 19, 20, 21...gear, 22...
... Rotating disk, 23 ... Sensor, 24 ... Operating rod, 25 ... Latching piece, 26 ... Spring (tension), 27 ... Printed board, 28, 28a ... Stopper, 29 ... Pattern.

Claims (1)

[Claims for Utility Model Registration] A flat-blade cutter held movably up and down at the lower end of a slider mounted rotatably and movably up and down in a fixed block; a motor positioned at a position perpendicular to the pattern on the printed board to be printed in plan view; a cylinder that moves the slider up and down with a predetermined stroke; and a downward stroke end position of the slider set at an arbitrary height above the printed board. and a spring that biases the cutter in the projecting direction and applies elastic pattern cutting pressure to the cutter at the end position of the downward stroke of the slider.