JP2000343313A - Grooving machine for plate material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To heighten the working accuracy and efficiency in forming a groove in a plate material. SOLUTION: An inserting table 2 is installed in the front part of a machine frame 1 in such a way as movable longitudinally, and an engagement guide 4 capable of abutting to the counter-advancing end of a plate material W placed on the table 2 is provided on the oversurface of the table 2, and the machine frame 1 is equipped in its rear part with a clamp device 10 to hold pinchedly the advancing end of the plate fed backward by the table 2 and a clamp moving device 7 to move the clamp device 10 backward intermittently. A transversely moving body 13 moving in the lateral direction relative to the machine frame 1 is installed between the table 1 and clamp device 10 and is furnished with a working head 20 to form a groove in at least one surface of the plate placed on the table 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a groove processing machine for forming a groove (V-shaped groove) for dividing a thin plate material, for example, a printed wiring board.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Publication No. 7-12575
There was one described in the official gazette. That is, a table for supporting the plate material is provided on the front side of the machine base, and a lateral movement device for moving the front end of the plate material in the right and left direction by clamping it with the clamp, and moving the column in the front and rear direction on the rear side of the machine base. The column is provided with a pair of upper and lower rotary processing heads that pivot about the vertical axis, and when forming a V-shaped groove in the left and right direction on the plate, the rotary processing head is moved back and forth. The plate is moved in the left-right direction on the table through the lateral moving device while the rotary processing head is rotated, so that a groove in the left-right direction is formed in the plate. When forming a groove in the front-rear direction on the plate material, the rotary processing head is turned so that the axis thereof is directed in the left-right direction, and the rotary processing head is rotated through the column in a state where the rotary processing head is rotated. Has been moved in the front-rear direction to form a groove in the front-rear direction in the plate material.

[0003]

In the above-mentioned prior art, it is troublesome to increase the accuracy of clamping the plate by the clamp. Further, since a clamp for holding the plate material is provided on the table side, the next plate material cannot be supplied to the table until the groove processing of the plate material is completed, and it has been difficult to increase the processing efficiency. SUMMARY OF THE INVENTION An object of the present invention is to provide a new plate material grooving machine that solves the above problems.

[0004]

Means for Solving the Problems The present invention has the following configuration to achieve the above object. That is, according to the invention of claim 1, an insertion table on which a plate is placed is provided at the front side of the machine base so as to be able to move back and forth, and a counter-advancing end of the plate placed on the insertion table is provided on the upper surface of the insertion table. And a clamp device for receiving the forward end of the plate material fed rearward by the insertion table at the rear side of the machine base and holding the same, and intermittently moving the clamp device rearward. And a horizontal moving body that is moved in the left-right direction with respect to the machine base is provided between the insertion table and the clamping apparatus, and the horizontal moving body is mounted on the insertion table. A machining head for forming a groove on at least one surface of the plate material provided is provided, so that the clamping accuracy of the plate material by the clamp is increased, and the next plate material is tapered even during the groove processing of the plate material. It is obtained by allowing the supply to the.
According to a second aspect of the present invention, a discharge conveyor is provided below the clamp device so that a workpiece detached from the clamp device can be smoothly discharged.
Further, the invention according to claim 3 provides the working head with a measuring element capable of contacting the bottom of the groove of the plate material formed by the working head, so that the remaining thickness of the groove can be measured immediately after the working. It was done. Further, the invention according to claim 4 is provided with a head elevating device for moving the processing head up and down, and an elevating control unit for controlling the head elevating device, and detecting the position of the tracing stylus to measure the remaining thickness of the groove of the plate material. Is provided, and a correction unit that outputs correction data to the elevation control unit based on the data of the remaining thickness calculation unit to correct the processing position of the processing head is provided. The processing accuracy of the groove is increased.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a schematic perspective view of a grooving machine according to the present invention, FIG. 2 is a schematic side view of a grooving machine according to the present invention, and FIG. 3 is a perspective view of a machining head support according to the present invention. . 1 and 2, reference numeral 1 denotes a machine base;
An insertion table 2 on which a printed circuit board W is mounted is mounted on the front side of the machine base 1 so as to be movable back and forth.
In the left and right directions).

A locking guide 4 is provided on the upper surface of the insertion table 2.
Attach. The locking guide 4 is elongated in the left-right direction so as to substantially correspond to the left-right width of the insertion table 2, and is moved and adjusted in the front-rear direction, and is fixed to the insertion table 2 by a stopper 5 such as a small screw. As shown in FIG. 2, the locking guide 4 abuts on the non-advancing end (left end) of the printed board W placed on the insertion table 2, and pushes the advanced end (right end) of the printed board W onto the insertion table 2. To project rightward from the forward end (right end) by a predetermined amount.

A gate-type clamp moving device 7 is mounted on the rear side of the machine base 1 so as to be able to move back and forth, and a large number of clamp devices are mounted on a cross bar 8 of the clamp moving device 7 extending in the left-right direction above the rear portion of the machine base 1. 10 are mounted on the left and right at predetermined intervals. As shown in FIG.
A regulating step is formed on the upper surface of the left end of the lower claw 10a fixed to the cross bar 8 to lock the forward end (right end) of the printed circuit board W, and the upper claw 10b is pinned on the upper end of the lower claw 10a at the right end. The upper pawl 10b is pivoted downward by 10c so as to clamp the forward end of the printed circuit board W locked by the regulating step. The clamp moving device 7 is configured such that the clamp device 10
A predetermined pitch, that is, a pitch of a groove H formed in the printed circuit board W, is intermittently moved backward (rightward in FIG. 1) from an advanced position for receiving the printed circuit board W on the side. Has become.

The insertion table 2 and the clamping device 1
0, a horizontal moving body 13 that is moved in the left-right direction with respect to the machine base 1 is provided.
A pair of processing heads 20 for forming grooves H on the upper and lower surfaces of the printed circuit board W mounted on the substrate are mounted. The horizontal moving body 13
The X-axis motor 1 is mounted on the support case 14 attached to the machine base 1.
A feed screw 16 which is rotated forward and reverse by 5 is attached, and is moved in the left-right direction via the feed screw 16. Further, in the upper and lower middle portions of the horizontal moving body 13, left and right long escape holes 13a for preventing collision with the printed circuit board W are formed.

The processing head 20 is provided with a disk-shaped cutter 22 having a mountain-shaped blade mounted on a rotation shaft of a head motor 21 which rotates about an axis in the front-rear direction. The processing heads 20 are attached to the upper and lower portions in opposition with the escape hole 13a interposed therebetween. The Z-axis motor 23 is controlled by receiving a signal from the lifting / lowering control unit 40.
The processing position (depth of the groove) is set by the processing position data input to the elevation control unit 40. In addition,
When forming a V-shaped groove on one side of the printed circuit board W,
The processing head 20 is attached to only one of the upper and lower sides.

As shown in FIG. 3, a pair of measuring devices 25 are mounted on the right side of each processing head 20. This measuring device 25 is provided with a V-shaped groove H formed on a printed circuit board W.
The probe 26 that can contact the bottom of the groove H is moved in the contact / separation direction by the vertical movement device 27, and the position (movement amount) when each probe 26 comes into contact with the bottom of the groove H is detected, and The remaining thickness (actual size) of the formed groove is calculated. The processing position data input and set to the elevation control unit 40 is corrected by the correction unit 42 to the measurement device 2.
The data is compared with the data of the remaining thickness calculating section 41 calculated in step 5, and when the difference is not less than a predetermined value, the processing position data is corrected.

In FIG. 2, reference numeral 30 denotes a lift device mounted on the front side of the insertion table 2 for holding the unprocessed printed circuit board W at a predetermined height. The unprocessed printed circuit boards W deposited on the lift device 30 are sequentially lifted from the upper side by the suction pad 32 of the input device 31 and placed (supplied) at a predetermined position on the insertion table 2. Reference numeral 33 denotes a plate-shaped processing clamp provided immediately before the processing head 20. When a groove is formed in the printed board W, the front part of the grooved portion of the printed board W is pressed from above to press the machine base 1 side. Is fixed to the fixed table. Reference numeral 34 denotes a discharge conveyor comprising a belt conveyor provided below the clamp device 10, and a printed circuit board (processed product) detached from the clamp device 10 and dropped.
After receiving W, it is transported backward and discharged to a deposition lift 35 provided at the rear of the machine base 1.

Next, the operation of the above embodiment will be described. When the unprocessed printed circuit board W is placed on the insertion table 2, the Y-axis cylinder 3 extends to move the printed circuit board W on the insertion table 2 rearward through the insertion table 2 and the locking guide 4. The clamp device 10 is moved and its forward end is supplied to the clamp device 10 which has moved forward. In this case, in the clamp device 10, the upper claw 10b is opened, and the forward end of the printed circuit board W collides with a regulating step formed on the front upper surface of the lower claw 10b to determine the forward position. Then, the upper claws 10b rotate downward to rotate the printed circuit board W
The forward end of the

Next, after the clamp moving device 7 moves backward by a predetermined amount to move the printed board W to the first groove processing position, the work clamp 33 is operated to fix the printed board W. Next, the elevation control unit 40 controls the drive of the Z-axis motor 23 to move each machining head 20 to the machining position, and activates the machining head 20;
In this state, the lateral movement device 13 is moved rightward in FIG. 1 via the X-axis motor 15 and the feed screw 16 to form the first V-shaped groove H on the upper and lower surfaces of the printed circuit board W.

Next, the processing heads 20 are separated from each other via the Z-axis motor 23, and the horizontal moving device 13 is moved to a predetermined position. Then, the vertical moving device 27 of the measuring device 25 is operated, and the measuring element 26 is printed. The substrate W is brought into contact with the bottom of the groove on the upper and lower surfaces, and the remaining thickness (actual size) of the groove is confirmed by the remaining thickness calculator 41 of the measuring device 25. The data of the remaining thickness is corrected by the correction unit 42.
Is compared with the processing position data input and set to the elevation control unit 40 by the correction unit 42, and when this differs by a predetermined value or more, the processing position data is corrected,
The processing position of each processing head 20 is corrected.

When the first machining step is completed, the machining clamp 33 is opened (moved upward) and the clamp moving device 7 is opened.
Moves to the rear position of the next stage, and
After moving to the second groove processing position, the processing clamp 33 is operated to fix the printed circuit board W. Next, each processing head 20 is moved rightward again in FIG.
After processing the groove H for the first time, the remaining thickness (actual size) of the groove of the printed circuit board W is confirmed and the processing position of each processing head 20 is confirmed (corrected) by the correction unit 42 in the same manner as described above. In the same manner, grooves are sequentially formed on the upper and lower surfaces of the printed circuit board W, and when the groove processing is completed, the clamp device is opened to drop the printed circuit board W onto the discharge conveyor 34,
The paper is discharged to the deposition lift 35 at the rear of the machine 1 by the discharge conveyor 34.

[0016]

As is apparent from the above description, claim 1
According to the invention, a plate is placed on an insertion table that moves back and forth, and the plate is transported toward a rear clamping device by the insertion table, and a non-advancing end of the plate is pressed by a locking guide provided on the insertion table. Then, since the plate is inserted into the clamp device, the clamping accuracy of the plate by the clamp device is increased. Also, since the groove is processed while pulling the plate material backward by the clamp device provided on the rear side, even if it is a thin plate material such as a printed circuit board, it will not bend when moving backward, and the position of the groove will not be disturbed. , Can be processed with high precision. Also,
The next plate material can be supplied to the insertion table even during the groove processing, and the processing efficiency is increased. Claim 2
According to the invention, the workpiece is dropped from the clamp device and discharged to a predetermined location by the discharge conveyor, so that the clamp moving device requiring high moving accuracy can be reduced in size. Further, according to the third aspect of the invention, it is possible to confirm the remaining thickness of the groove immediately after processing, thereby preventing the occurrence of defective products. According to the invention of claim 4, the processing position of the processing head is maintained with high accuracy, and the processing accuracy of the groove is increased.

[Brief description of the drawings]

1 is a schematic perspective view of a grooving machine according to the present invention.

FIG. 2 is a schematic side view of a grooving machine according to the present invention.

FIG. 3 is a perspective view of a processing head support according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine stand 2 Insertion table 3 Y-axis cylinder (front-rear drive) 4 Locking guide 5 Stopper 7 Clamp moving device 8 Cross bar 10 Clamping device 10a Lower claw 10b Upper claw 10c Pin 13 Lateral moving device 14 Support case 15 X-axis Motor 16 Feed screw 20 Processing head 21 Head motor 22 Cutter 23 Z-axis motor (head elevating device) 25 Measuring device 26 Measuring element 27 Vertical moving device 30 Lifting device 31 Input device 32 Suction pad 33 Processing clamp 34 Discharge conveyor 35 Loading lift 40 Elevation control unit 41 Remaining thickness calculation unit 42 Correction unit W Plate (printed circuit board) H Groove

Claims (4)

[Claims] An insert table (2) on which a plate (W) is placed is provided at the front side of the machine base (1) so as to be movable back and forth, and the insert table (2) is provided on the upper surface of the insert table (2). A plate (2) is provided with a locking guide (4) that can be brought into contact with the non-advancing end of the plate (W) placed on the plate (2). (W) receives the forward end and clamps it (1).
0) and a clamp moving device (7) for intermittently moving the clamp device (10) rearward, and a machine base is provided between the insertion table (2) and the clamp device (10). A horizontal moving body (13) that is moved in the left-right direction with respect to (1) is provided, and the horizontal moving body (13) is provided on at least one surface of a plate (W) placed on the insertion table (2). A groove processing machine for a plate material, comprising a processing head (20) for forming a groove (H). 2. A grooving machine according to claim 1, wherein a discharge conveyor (34) is provided below said clamping device (10). 3. The processing head (20) is provided with a tracing stylus (26) that can contact the bottom of the groove (H) of the plate (W) formed by the processing head (20). 3. The grooving machine according to claim 1, wherein 4. A head elevating device (23) for moving the processing head (20) up and down, and the head elevating device (23).
A lifting / lowering control unit (40) for controlling the measuring element (2)
6) a remaining thickness calculating section (41) for detecting the position and calculating the remaining thickness of the groove of the plate (W);
4. A correction unit (42) for outputting correction data to the elevation control unit (40) based on the data of (1) and correcting the processing position of the processing head (20).
A groove processing machine for the plate material as described.