JP3623896B2 - Sheet material grooving machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a groove processing machine for a thin plate material, for example, a plate material for forming a dividing groove (V-shaped groove) on a printed wiring board.
[0002]
[Prior art]
As a conventional technique, there is one described in Japanese Patent Publication No. 7-12575. In other words, a table that supports the plate material on the front side of the machine base and a lateral movement device that holds the front end of the plate material by a clamp and moves it in the left-right direction are provided, and the column is moved in the front-rear direction on the rear side of the machine base. When this 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-right direction on the plate material, the rotary processing head is centered forward and backward. The plate material is turned in the horizontal direction and the plate is moved in the horizontal direction on the table through the lateral movement device with the rotary processing head rotated, thereby forming a horizontal groove in the plate material. Further, when the longitudinal groove is formed in the plate material, the rotary processing head is turned through the column in a state where the rotary processing head is turned so that the axial center thereof is directed in the left-right direction and the rotary processing head is rotated. Has been moved in the front-rear direction to form grooves in the front-rear direction in the plate material.
[0003]
[Problems to be solved by the invention]
The above-described conventional device requires a lot of work to increase the holding accuracy of the plate material by the clamp. Further, since the 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 is difficult to increase the processing efficiency. It is an object of the present invention to obtain a novel plate material grooving machine which solves the above problems.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows. That is, the invention of claim 1 is provided with an insertion table on which the plate material is placed on the front side of the machine base so as to be movable back and forth, and an anti-advance end of the plate material placed on the insertion table on the upper surface of the insertion table. And a clamping device for receiving and holding the forward end of the plate material fed backward by the insertion table on the rear side of the machine base, and intermittently facing the clamping device to the rear A clamp moving device that is moved in a horizontal direction, 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 clamp device, and the horizontal moving body is placed on the insertion table. In this configuration, a processing head for forming a groove is provided on at least one surface of the formed plate material, so that the holding accuracy of the plate material by the clamp is increased, and the next plate material can be transferred to the table 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 processed product detached from the clamp device can be discharged smoothly.
According to a third aspect of the present invention, the processing head is provided with a probe capable of contacting the bottom of the groove of the plate material formed by the processing head, so that the remaining thickness of the groove can be measured immediately after processing. It is a thing.
According to a fourth aspect of the present invention, there is provided a head elevating device that moves the machining head up and down, and an elevating control unit that controls the head elevating device, detecting the position of the measuring element, and the remaining thickness of the groove portion of the plate material And a correction unit that outputs correction data to the elevation control unit based on the data of the remaining thickness calculation unit and corrects the processing position of the processing head. The groove processing accuracy is increased.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to 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 the grooving machine according to the present invention, and FIG. 3 is a perspective view of a processing head support according to the present invention. . In FIG. 1 and FIG. 2, reference numeral 1 denotes a machine base. A front / rear drive device comprising a Y-axis cylinder 3 is attached to an insertion table 2 on which a printed circuit board W is placed on the front side of the machine base 1 so as to be movable back and forth. Is moved in the front-back direction (left-right direction in FIG. 2) within a predetermined range.
[0006]
A locking guide 4 is attached to the upper surface of the insertion table 2. 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 to be fixed to the insertion table 2 with a stopper 5 such as a machine screw. As shown in FIG. 2, the locking guide 4 abuts against the counter-advance end (left end) of the printed board W placed on the insertion table 2, and the advance end (right end) of the printed board W is inserted into the insertion table 2. For projecting a predetermined amount to the right from the forward end (right end).
[0007]
A gate-shaped clamp moving device 7 is attached to the rear side of the machine base 1 so as to be movable back and forth, and a number of clamp devices 10 are mounted on the crossbar 8 of the clamp moving device 7 extending in the left-right direction above the rear portion of the machine base 1. Attach with a predetermined interval. As shown in FIG. 2, the clamp device 10 forms a regulation step portion on which the forward end (right end) of the printed circuit board W is locked on the upper surface of the left end of the lower claw 10 a fixed to the cross bar 8. An upper claw 10b is rotatably attached to the upper portion of 10a by a pin 10c on the right end side, and the upper claw 10b is rotated downward so as to hold the forward end of the printed circuit board W locked by the restriction step portion. It has become. The clamp moving device 7 has a predetermined pitch, that is, a groove formed in the printed circuit board W, from the forward position where the clamp apparatus 10 receives the printed circuit board W on the insertion table 2 side to the rear (right side in FIG. 1). It is moved intermittently corresponding to the pitch of H.
[0008]
Between the insertion table 2 and the clamping device 10, a lateral moving body 13 that is moved in the left-right direction with respect to the machine base 1 is provided, and a printed circuit board placed on the insertion table 2 on the lateral moving body 13. A pair of processing heads 20 that form grooves H are attached to the upper and lower surfaces of W. The lateral moving body 13 is attached to a support case 14 attached to the machine base 1 with a feed screw 16 that is rotated forward and backward by an X-axis motor 15, and is moved in the left-right direction via the feed screw 16. Further, in the upper and lower intermediate portions of the laterally movable body 13, left and right escape holes 13a that prevent a collision with the printed circuit board W are formed.
[0009]
The machining head 20 has a disk-shaped cutter 22 having a chevron blade attached to the rotating shaft of a head motor 21 that rotates about a longitudinal axis, and the upper and lower portions of the right end portion of the lateral moving body 13. The machining heads 20 are moved and adjusted in the contact / separation direction by a Z-axis motor 23 that forms a head lifting device. The Z-axis motor 23 is controlled by receiving a signal from the elevation control unit 40, and the machining position (groove depth) of the cutter 22 is input to the elevation control unit 40. Set by position data. 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.
[0010]
As shown in FIG. 3, a pair of measuring devices 25 is attached to the right side of each processing head 20. In this measuring device 25, a measuring element 26 that can contact the bottom of a V-shaped groove H formed on the printed circuit board W is moved in the contact / separation direction by a vertical movement device 27, and each measuring element 26 is moved to the bottom of the groove H. The remaining thickness (actual size) of the groove formed on the printed circuit board W is calculated by detecting the position (movement amount) at the time of contact. Further, the machining position data input and set in the elevation control unit 40 is compared with the data of the remaining thickness calculation unit 41 calculated by the measurement device 25 by the correction unit 42. The position data is corrected.
[0011]
In FIG. 2, reference numeral 30 denotes a lift device attached to the front side of the insertion table 2, which holds the deposited unprocessed printed board W at a predetermined height position. The unprocessed printed circuit board W deposited on the lift device 30 is 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 on the front side of the processing head 20, and when the printed board W is grooved, the front side of the printed circuit board W is pressed from above to the machine base 1 side. It is fixed to the fixed table. Reference numeral 34 denotes a discharge conveyor including a belt conveyor provided below the clamp device 10. The discharge conveyor 34 receives a printed circuit board (processed product) W that has been detached and dropped from the clamp device 10, and transfers it to the rear. It discharges | emits to the deposition lift 35 provided in the rear part.
[0012]
Next, the operation mode of the above embodiment will be described. When an unprocessed printed circuit board W is placed on the insertion table 2, the Y-axis cylinder 3 extends and the printed circuit board W on the insertion table 2 is moved backward via the insertion table 2 and the locking guide 4. The forward end is supplied to the clamp device 10 that has moved forward. In this case, the upper claw 10b of the clamping device 10 is opened, and the advance end of the printed circuit board W collides with a regulation step formed on the front upper surface of the lower claw 10b to determine its advance position. Next, the upper claw 10b rotates downward to grip the forward end of the printed circuit board W.
[0013]
Next, the clamp moving device 7 moves backward by a predetermined amount to move the printed board W to the first groove machining position, and then the machining clamp 33 is operated to fix the printed board W. Next, the Z-axis motor 23 is driven and controlled by the elevation controller 40 to move each machining head 20 to the machining position, and the machining head 20 is activated. In this state, the X-axis motor 15 and the feed screw 16 are used. The lateral movement device 13 is moved rightward in FIG. 1 to process the first V-shaped groove H on the upper and lower surfaces of the printed board W.
[0014]
Next, the machining heads 20 are separated via the Z-axis motor 23 and the lateral movement device 13 is moved to a predetermined position. Then, the vertical movement device 27 of the measurement device 25 is operated, and the measuring element 26 is moved to the printed circuit board W. The remaining thickness (actual size) of the groove is confirmed by the remaining thickness calculator 41 of the measuring device 25 in contact with the groove bottoms of the upper and lower surfaces. The remaining thickness data is input to the correction unit 42 and compared with the processing position data input and set to the elevation control unit 40 by the correction unit 42. When the difference is more than a predetermined value, the processing position data is corrected. Then, the machining position of each machining head 20 is corrected.
[0015]
When the first processing step is completed, the processing clamp 33 is opened (moved upward), the clamp moving device 7 is moved to the rear position of the next stage, and the printed board W is moved to the second groove processing position. After that, the processing clamp 33 is operated to fix the printed board W. Next, each processing head 20 is again moved to the right in FIG. 1 via the lateral movement device 13 to process the second groove H on the upper and lower surfaces of the printed circuit board W, and then the printed circuit board in the same manner as described above. The remaining thickness (actual size) of the groove portion of W is confirmed, and the processing position of each processing head 20 is confirmed (corrected) by the correction unit 42. In the same manner, the upper and lower surfaces of the printed circuit board W are sequentially grooved. When the groove processing is completed, the clamping device is opened to drop the printed circuit board W onto the discharge conveyor 34. 1 Discharge to the rear deposition lift 35.
[0016]
【The invention's effect】
As is apparent from the above description, the invention of claim 1 places the plate material on the insertion table that moves back and forth, and transfers the plate material toward the clamping device on the rear side by the insertion table and is provided on the insertion table. Since the plate member is inserted into the clamp device by pressing the counter-advance end of the plate material with the locking guide, the holding accuracy of the plate material by the clamp device is increased. In addition, because the plate material is pulled out backward by the clamping 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 moved backward, and the groove formation position will not go out of order. Can be processed with high accuracy. Further, the next plate material can be supplied to the insertion table even during the groove processing, and the processing efficiency is increased.
According to the second aspect of the present invention, since the processed product is dropped from the clamp device and discharged to a predetermined location by the discharge conveyor, the clamp moving device requiring high movement accuracy can be reduced in size.
Further, the invention of claim 3 can prevent the occurrence of defective products by checking the remaining thickness of the groove immediately after processing.
In the invention of claim 4, the machining position of the machining head is maintained with high accuracy, and the machining accuracy of the groove is increased.
[Brief description of 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.
FIG. 3 is a perspective view of a processing head support according to the present invention.
[Explanation of symbols]
1 Machine base 2 Insertion table 3 Y-axis cylinder (front-rear drive device)
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 lifting device)
25 Measuring device 26 Measuring element 27 Vertical movement device 30 Lifting device 31 Loading device 32 Suction pad 33 Processing clamp 34 Discharge conveyor 35 Loading lift 40 Lift control unit 41 Remaining thickness calculation unit 42 Correction unit W Plate material (printed circuit board)
H groove

Claims (4)

An insertion table (2) on which the plate (W) is placed is provided on the front side of the machine base (1) so as to be movable back and forth, and placed on the insertion table (2) on the upper surface of the insertion table (2). A locking guide (4) that can come into contact with the counter-advance end of the plate (W) is provided, and the plate (W) that is fed backward by the insertion table (2) is provided on the rear side of the machine base (1). A clamp device (10) for receiving and holding the end; and a clamp moving device (7) for intermittently moving the clamp device (10) rearwardly, the insertion table (2) and the clamp A laterally movable body (13) that is moved in the left-right direction with respect to the machine base (1) is provided between the apparatus (10) and placed on the insertion table (2) on the laterally movable body (13). Machining head (20) for forming grooves (H) on at least one surface of the plate material (W) Grooving machine of the plate material, characterized in that provided. 2. The plate material grooving machine according to claim 1, wherein a discharge conveyor (34) is provided below the clamping device (10). The measuring head (20) is provided with a probe (26) capable of contacting the bottom of the groove (H) of the plate (W) formed by the processing head (20). 2. The plate material grooving machine according to 2. A head lifting device (23) for moving the machining head (20) up and down, and a lifting control unit (40) for controlling the head lifting device (23) are provided, and the position of the probe (26) is detected to detect the position of the probe (26). A remaining thickness calculating section (41) for calculating the remaining thickness of the groove of the plate material (W) is provided, and correction data is output to the elevation control section (40) based on the data of the remaining thickness calculating section (41). 4. A plate material grooving machine according to claim 3, further comprising a correction section (42) for correcting the machining position of the head (20).

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