TW201622931A - Substrate hole drilling device and control method thereof - Google Patents

Abstract

An objective of the invention is to prevent the tool holder and the spindle from being damaged under condition of delivering the drill between the spindle and the tool holder. The invention is a substrate hole drilling device. The substrate hole drilling device is disposed with a tool holder temporarily holding the drill that is delivered with the spindle on the working table. Its characteristics are consisted of a light emitter, a sensor, a control portion. The foregoing light emitter generates a tool holder check light interrupted by the drill held at the tool holder in the state where the working table is in a specified position. The sensor senses the tool holder check light. The control portion allows the working table to move toward the specific position under condition of trying to deliver the drill between the spindle and the tool holder and issues an alarm in case that the sensor is unable to sense the tool holder check light.

Description

Substrate opening device and control method thereof

The present invention relates to a substrate opening device and a control method thereof, the substrate opening device being provided with a tool holder for, for example, exchanging a drill for performing a hole in a printed substrate, etc. Keep the drill bit temporarily.

In the substrate opening device, there is a substrate opening device including a supply tool holder and an exit tool holder. In the case of exchanging a drill, the supply tool holder is used to be used from a drill case. The new drill bit is temporarily held until the new drill bit is removed, and the exit tool holder is used to temporarily hold the old drill bit before the old drill bit holding the spindle is received in the drill bit.

In such a substrate opening device, if, for some reason, a new drill bit is to be moved from the supply tool holder to the main shaft, an old drill bit is left on the main shaft, or the old one is to be held in the main shaft. In the case where the drill bit is moved to the exit tool holder, the drill bit is left on the exit tool holder, and there is a possibility that the drill bit collides with each other on the tool holder or the spindle, damaging the tool holder or the spindle.

Patent Document 1 discloses a substrate opening device including a supply tool holder and an exit tool holder. However, damage to the tool holder and the main shaft as described above has not been mentioned.

Patent Document 1: Japanese Patent No. 3038114.

Accordingly, it is an object of the present invention to prevent damage to the tool holder and the main shaft in the case where the transfer of the drill bit is to be performed between the main shaft and the tool holder.

In the substrate opening device according to the first aspect of the invention, the tool holder is provided with a holder for temporarily holding a drill that is transferred between the spindle and the spindle, wherein the substrate opening device is provided. The illuminator, the sensor, and the control unit; the illuminator generates the tool holder collating light, and the tool holder collating the light is blocked by the drill bit held on the tool holder in a state where the processing table is at a specific position; the sensor senses The tool holder corrects light; when the control unit is to transfer the drill between the spindle and the tool holder, the processing unit moves the processing table to the specific position, and the sensor does not sense the tool holder calibration light. , an alert is issued.

In the substrate hole drilling device according to the first aspect of the invention, the substrate illuminating device according to the first aspect of the invention, wherein the illuminator is capable of generating spindle alignment light, and if the spindle is at a predetermined position, Holding the drill on the main shaft, the spindle collating light is blocked by the drill; the sensor can sense the spindle collating light; and the control unit moves the main axis to the predetermined position, if the sensor is not capable of sensing When the aforementioned spindle collates the light, an alarm is issued.

The substrate boring device according to the first aspect of the invention, wherein the tool holder includes a supply turret and a detaching turret, and the supply turret temporarily The drill that is supplied to the spindle is held, and the exit tool holder temporarily holds the drill that has withdrawn from the spindle, and the supply tool holder and the exit tool holder are arranged in a line in the direction in which the tool holder corrects light.

In the substrate boring device according to any one of the first to third aspects of the present invention, the illuminator and the sensor are movably mounted on the spindle. On the column.

In the method of controlling a substrate opening device according to the fifth aspect of the invention, the substrate opening device includes a tool holder for temporarily holding a drill bit that is transferred between the main shaft and the workpiece, and the method includes the following steps a step of causing the tool holder to collate the light, wherein the tool holder collimating light is blocked by the drill bit while the drill bit is held on the tool holder in a state where the processing table is at a specific position; a step of moving the processing table to the specific position when the drill bit is transferred between the tool holders; and a tool holder proofreading step of determining whether the tool holder collision light is blocked in a state where the processing table is at the specific position; The step of issuing an alarm in the case where the tool holder collimates the light in the tool holder proofreading step.

The method for controlling a substrate opening device according to the invention of claim 5, further comprising the step of: generating a spindle collating light, the spindle alignment a state in which the drill is blocked by the drill while the spindle is at a predetermined position, and the step of moving the predetermined position of the main axis; and determining that the spindle is in the predetermined position A step of collating the spindle for correcting whether the light is blocked; a step of issuing an alarm in the case where the aforementioned collimator collation light is blocked in the aforementioned spindle proofreading step.

The method of controlling a substrate opening device according to the invention of claim 5, wherein the tool holder includes a supply tool holder and an exit tool holder, The aforementioned supply The tool holder temporarily holds the drill bit supplied to the spindle, and the exit tool holder temporarily holds the drill bit that is withdrawn from the spindle. The supply tool holder and the exit tool holder are arranged in a direction in which the tool holder corrects light. On the line.

According to the present invention, it is possible to prevent damage of the tool holder and the main shaft in the case where the transfer of the drill bit is to be performed between the main shaft and the tool holder.

1‧‧‧ device abutment

2‧‧‧Processing table

3‧‧‧Printing substrate

4‧‧‧Door column

5‧‧‧ Horizontal skateboarding

6‧‧‧ Spindle

7‧‧‧ drill bit

8‧‧‧Sub-clamp

9‧‧‧Supply tool holder

10‧‧‧Without tool holder

11‧‧‧Drill box

13‧‧‧ illuminator

14‧‧‧Sensor

15‧‧‧Light (knife proofreading light, spindle proofing light)

16‧‧‧Display Department

20‧‧‧ overall control department (control department)

1 is a schematic view showing the structure of a substrate opening device as an embodiment of the present invention.

Fig. 2 is a view showing a positional relationship between a main shaft and light rays in an embodiment of the present invention.

Fig. 3 is a flow chart showing a state in which the drill bit is re-held by the spindle at the start of machining in an embodiment of the present invention.

4 is a flow chart showing a state in which a drill bit is exchanged during processing in an embodiment of the present invention.

Fig. 5 is a flow chart showing a state in which a machining operation is completed in an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described.

1 is a schematic view showing the structure of a substrate opening device as an embodiment of the present invention. In Fig. 1, reference numeral 1 denotes a device base as a base of the apparatus, and reference numeral 2 denotes a processing table which is driven on the apparatus base 1 by a drive mechanism not shown in the X direction. The printed substrate 3 as a workpiece is placed on the processing table 2. Reference numeral 4 denotes a device mounted on the apparatus base 1. A gantry type column is disposed across the processing table 2, and a horizontal sliding plate 5 driven in the Y direction by a driving mechanism not shown is mounted on one vertical surface thereof. A spindle 6 that is driven in the Z direction (up and down direction) by a drive mechanism (not shown) is mounted on the lateral slider 5, and the spindle 6 is movably mounted on the portal post 4. Reference numeral 7 denotes a drill bit for processing the printed substrate 3, which is held on the main shaft 6. Reference numeral 8 denotes a sub jig that moves in the Z direction together with the main shaft 6, and the sub jig is mounted on the main shaft 6. Reference numerals 9, 10, and 11 denote a drill bit for supplying a tool holder, a withdrawal tool holder, and a new drill bit and an old drill bit, respectively, and the supply tool holder, the exit tool holder, and the drill box are respectively processed. The stage 2 is placed in the vicinity of the printed circuit board 3 to be processed. Reference numeral 16 denotes a display portion that functions to transmit various kinds of information to the operator. Reference numeral 20 denotes an overall control unit that performs control of each unit of the apparatus, and is realized by, for example, a program-controlled processing unit.

Reference numeral 13 denotes an illuminator that emits light such as laser light, reference numeral 14 denotes a sensor that senses laser light from the illuminator 13, and the illuminator 13 and the sensor 14 are disposed at both ends of the portal pillar 4. The light ray 15 generated by the illuminator 13 faces the Y direction, and its X coordinate coincides with the X coordinate of the drill bit 7 held on the main shaft 6. As shown in FIG. 2, the light ray 15 passes through a position lower than the main shaft 6. Thus, when the spindle 6 has been lowered, if the drill 7 is held on the spindle 6, the shank of the drill 7 blocks the light 15 . In other words, the illuminator 13 is capable of generating detection light (spindle calibration light), and if the drill 7 is held on the main shaft 6 at a predetermined position, the detection light is blocked by the drill 7.

Further, as shown in FIG. 2, the supply tool holder 9 and the exit tool holder 10 that temporarily hold the drill bit that is transferred between the main shaft 6 and the exit tool holder 10 are located in the same manner. The X coordinates are arranged in a straight line in the Y direction, and the light ray 15 passes above the supply tool holder 9 and the exit tool holder 10. Therefore, the processing table 2 is moved to a specific position at which the X coordinate of the supply tool holder 9 and the exit tool holder 10 coincides with the X coordinate of the light beam 15, so that the supply tool holder 9 and the exit tool holder 10 are overlapped from above. In the case of the light ray 15, when the drill 7 is held on at least one of the supply turret 9 and the exit turret 10, the shank of the drill 7 blocks the light 15 . In other words, the illuminator 13 is capable of generating detection light (tool holder collating light), and if the drill bit 7 is held on the tool holder (9, 10) of the processing table located at a specific position, the detection light (tool holder collating light) is The drill bit 7 is blocked.

The substrate opening device of Fig. 1 operates as follows under the control of the overall control unit 20. In the following description, the position of the main shaft 6 is a relative coordinate with respect to the processing table 2 (the appropriate point of the processing table 2 is an origin, and the X direction, the Y direction, and the Z direction are orthogonal directions of the axial direction. Coordinate system) to illustrate. That is, in the case of the present embodiment, the operation of changing the X coordinate of the main shaft 6 is completed by moving the processing table 2 in the X direction, and the action of changing the Y coordinate is performed by moving the lateral slider 5 in the Y direction. Further, the action of changing the Z coordinate is accomplished by the movement of the main shaft 6 in the Z direction. Further, the driving structure for relatively moving the main shaft 6 with respect to the printed circuit board placed on the processing table 2 is not limited to the above-described device. For example, the main shaft may be movable in all directions of the X direction, the Y direction, and the Z direction. Structure.

First, a case where the drill 7 is re-held by the spindle 6 at the start of machining will be described. As in the flow shown in Fig. 3, the spindle 6 is first moved to X1, Y1 (hereinafter this coordinate position is referred to as position A) (step A1). The X coordinate X1 of the position A is set even in the supply tool holder 9 or the exit tool holder 10 There are drill bits 7 on them, and they do not block the light 15 at all. The spindle 6 is then lowered to a predetermined position (step A2). The predetermined position is set to the position of the main shaft 6 in the case where the X position is located in the X direction and the Y direction, and the Z of the drill bit 7 blocks the light 15 when the drill 7 is mounted on the main shaft 6. On the coordinates. Thereafter, in step A3, the overall control unit 20 generates laser light from the illuminator 13, and determines whether or not the sensor 14 senses the laser (spindle proofing light) in a state where the spindle 6 is at a predetermined position (spindle proofreading step). If the sensor 14 does not sense the laser (ON), it means that the drill 7 is left on the main shaft 6, so it is regarded as an abnormality, and the error "Keep the drill on the main shaft. Please remove it" The information (alarm) is displayed on the display unit 16, and the operator is urged to remove the unnecessary drill (step A4). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step A5), and the process proceeds to step A6.

On the other hand, if the sensor 14 senses the laser in step A3, it means that the drill 7 is not left on the main shaft 6, so it is regarded as normal, and the process proceeds to step A6 to move the main shaft 6 to X2 and Y1 (below). This coordinate position is referred to as position B). The X coordinate X2 of the position B is a position where the light 15 is blocked if the drill 7 is present on the supply tool holder 9 or the exit tool holder 10. In other words, in step A3, the overall control unit 20 moves the processing table 2 to the above-described specific position.

Thereafter, it is determined in step A7 whether the sensor 14 senses the laser (tool holder collating light) (tool holder collating step). If the sensor 14 does not sense the laser, it means that the drill 7 is left on the supply tool holder 9 or the exit tool holder 10. Therefore, it is regarded as an abnormality, and the error "Please remove the drill bit on the tool holder" The information (alarm) is displayed on the display unit 16, and urges the operator to remove the unnecessary drill (step) Step A8). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step A9), and the process proceeds to step A10.

On the other hand, if the sensor 14 senses the laser in step A7, at least the drill 7 is not left on the supply tool holder 9, so that it is regarded as normal, and although the illustration in Fig. 3 is omitted, the main shaft 6 is omitted. The processing table 2 is appropriately moved, and the new drill 7 is taken out from the drill box 11 by the sub-clamp 8, and placed on the supply tool holder 9 (step A10), and then the drill 7 for the supply tool holder 9 is used for the spindle 6. The assembly operation of the held drill bit (step A11) starts the rotation of the spindle 6 (step A12). After that, the overall control unit 20 appropriately moves the spindle 6 and the processing table 2 while performing a machining operation on the workpiece (printed substrate 3) placed on the processing table 2.

Next, a case where the drill bit is exchanged during the machining will be described. As in the flow shown in Fig. 4, the rotation of the spindle 6 is first stopped (step B1), and then the spindle 6 is moved to the position B (step B2). In other words, in step B2, the overall control unit 20 moves the processing table 2 to the specific position described above. Thereafter, it is determined in step B3 whether or not the sensor 14 senses the laser (tool holder collating light) (tool holder collating step). If the sensor 14 does not sense the laser, it means that the drill 7 is left on the supply tool holder 9 or the exit tool holder 10. Therefore, it is regarded as an abnormality, and the error message "Please remove the drill bit on the tool holder" is given. The (alarm) is displayed on the display unit 16, and the operator is urged to remove the unnecessary drill (step B4). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step B5), and the process proceeds to step B6.

On the other hand, if the sensor 14 senses the laser in step B3, it means that the drill 7 is not left on the supply tool holder 9 and the exit tool holder 10. Therefore, it is regarded as normal, and the illustration in FIG. 4 is omitted. Illustration, but make the spindle 6 and the processing table 2 suitable When moving, the new drill bit 7 is taken out from the drill bit cartridge 11 by means of the sub-clamp 8, and placed on the supply tool holder 9 (step B6), after which the drill bit 7 holding the spindle 6 is placed on the exit tool holder 10. The removal operation of the drill bit (step B7).

Next, the spindle 6 is moved to the position A, and then the spindle 6 is lowered to a predetermined position, and it is determined in step B10 whether or not the sensor 14 senses the laser (spindle proofing light) (spindle proofreading step). If the sensor 14 does not sense the laser, it means that the drill 7 is left on the main shaft 6, so it is regarded as abnormal, and the error message (alarm) of "holding the drill on the main shaft. Please remove it" is displayed on the display unit. It is shown on the 16 that the operator is urged to take out the unnecessary drill (step B11). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step B12), and the process proceeds to step B13.

On the other hand, if the sensor 14 senses the laser in step B10, it means that the drill 7 is not left on the main shaft 6, so it is regarded as normal. Although the illustration in Fig. 4 is omitted, the main shaft 6 and the machining are performed. The table 2 is appropriately moved, and the assembling operation of the drill bit held by the spindle 7 of the supply tool holder 9 is performed (step B13), and then the drill 7 located in the exit tool holder 10 is stored in the drill box 11 by the sub-clamp 8. (Step B14), the rotation of the spindle 6 is started (step B15). After that, the overall control unit 20 restarts the machining operation with respect to the workpiece (printed substrate 3) placed on the processing table 2.

Further, the start of the rotation of the main shaft 6 in the last step B15 may be performed before the operation of storing the drill 7 located in the exit tool holder 10 into the drill box 11 (step B14). This approach can quickly start the machining operation after the machining interruption, and improve the efficiency.

Next, a case where the machining operation is completed will be described. Figure 5 In the flow shown, the rotation of the spindle 6 is first stopped (step C1), and then the spindle 6 is moved to the position B (step C2). In other words, in step C2, the overall control unit 20 moves the processing table 2 to the specific position. Thereafter, it is determined in step C3 whether or not the sensor 14 senses the laser (tool holder collating light) (tool holder collating step). If the sensor 14 does not sense the laser, it means that the drill 7 is left on the supply tool holder 9 or the exit tool holder 10. Therefore, it is regarded as an abnormality, and the error "Please remove the drill bit on the tool holder" The information (alarm) is displayed on the display unit 16, and the operator is urged to remove the unnecessary drill (step C4). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step C5), and the process proceeds to step C6.

On the other hand, if the sensor 14 senses the laser in step C3, it means that the drill 7 is not left at least on the exit tool post 10, so it is regarded as normal, and although the illustration in Fig. 5 is omitted, The spindle 6 and the machining table 2 are appropriately moved, and the bit 7 held by the spindle 6 is placed in the detaching operation of the drill for the ejector blade 10 (step C6).

Next, the spindle 6 is moved to the position A (step C7), after which the spindle 6 is lowered to a predetermined position (step C8), and it is determined in step C9 whether the sensor 14 senses the laser (spindle proofing light) (spindle proofreading step). . If the sensor 14 does not sense the laser, it means that the drill 7 is left on the main shaft 6, so it is regarded as abnormal, and the error message (alarm) of "holding the drill on the main shaft. Please remove it" is displayed on the display unit. As shown in Fig. 16, the operator is urged to take out the unnecessary drill bit (step C10). Then, after the removal operation of the drill by the operator is performed, the restart instruction from the operator is received (step C11), and the process proceeds to step C12.

On the other hand, if the sensor 14 senses the laser in step C9, This means that the drill 7 is not left on the main shaft 6, so it is regarded as normal. Although the illustration in Fig. 5 is omitted, the main shaft 6 and the machining table 2 are appropriately moved, and the sub-clamp 8 is placed on the exit tool holder 10. The drill bit 7 is stored in the drill box 11 (step C12).

According to the above embodiment, if the new drill bit is to be moved from the supply tool holder 9 to the main shaft 6, the old drill bit is left on the main shaft 6, or the old drill bit to be held by the main shaft 6 is moved to the exit. In the case of the tool holder 10, a drill bit is left on the exit tool holder 10, or when the drill bit is to be moved from the drill box 11 to the supply tool holder 9, a drill bit is left on the supply tool holder 9. Then, the detection is abnormal, and an error message (alarm) is issued to urge the operator to remove the unnecessary drill bit, so that it is possible to eliminate the possibility that the drill bit collides with each other on the tool holder and the spindle, and the tool holder and the spindle are damaged.

Further, in the above embodiment, as shown in FIG. 1, the illuminator 13 and the sensor 14 are disposed opposite to each other on the leg portions on both sides of the portal post 4, but may be a retroreflective structure as described below. The sensor 14 is mounted (mounted) together with the illuminator 13, mounted on the one-side leg, and provided on the opposite side. Further, in the above-described embodiment, the light ray 15 irradiated from the illuminator 13 in the Y direction is also used as two types of detection light (spindle proofing light, tool holder proofing light), but it is also possible to provide a light having the ability to illuminate the main axis calibration light. A light-emitting unit and an illuminator capable of illuminating the second light-emitting portion that corrects light of the tool holder. In this case, the direction in which the spindle collimated light and the tool holder collate the light and the irradiation path may be different.

Further, in the above embodiment, the case where there is only one spindle 6 mounted on the portal post 4 is shown. In the substrate opening device, a multi-axis type substrate opening device is known, and the multi-axis type substrate opening device is provided with a plurality of spindles 6 on the gate column 4 in order to increase the amount of machining once, and These spindles 6 A processing table 2 is used in the same place, and a plurality of printed boards 3 as workpieces are placed on the processing table 2 corresponding to the main spindle 6.

In such a multi-axis type, the supply tool holder 9, the exit tool holder 10, and the drill box 11 are provided corresponding to the main shaft 6, but the illuminator 13 and the sensor 14 may be provided only on the door type column 4. The group, the operation based on the present invention is performed collectively with respect to the plurality of spindles 6.

1‧‧‧ device abutment

2‧‧‧Processing table

3‧‧‧Printing substrate

4‧‧‧Door column

5‧‧‧ Horizontal skateboarding

6‧‧‧ Spindle

7‧‧‧ drill bit

8‧‧‧Sub-clamp

9‧‧‧Supply tool holder

10‧‧‧Without tool holder

11‧‧‧Drill box

13‧‧‧ illuminator

14‧‧‧Sensor

15‧‧‧Light (knife proofreading light, spindle proofing light)

16‧‧‧Display Department

20‧‧‧ overall control department (control department)

Claims (7)

A substrate opening device, wherein the substrate opening device is provided with a tool holder for temporarily holding a drill bit that is transferred between the spindle and the spindle, wherein the substrate opening device includes an illuminator, a sensor, and a control unit; the illuminator generates tool holder calibration light, wherein the tool holder correcting light is blocked by a drill held on the tool holder in a state where the processing table is at a specific position; and the sensor senses the tool holder collating light; The control unit moves the processing table to the specific position when the drill is to be transferred between the spindle and the tool holder, and an alarm is issued when the sensor cannot sense the tool holder calibration light. The substrate opening device according to claim 1, wherein the illuminator is capable of generating spindle collimation light, and the spindle collimated light is maintained when a spindle is held on the spindle while the spindle is at a predetermined position. The sensor is capable of sensing the spindle alignment light, and the control unit moves the predetermined axis in the main axis. When the sensor is unable to sense the spindle calibration light, an alarm is issued. The substrate opening device according to claim 1, wherein the tool holder includes a supply tool holder and an exit tool holder, and the supply tool holder temporarily holds a drill supplied to the spindle, and the exit tool holder The drill bit that has withdrawn from the spindle is temporarily held, and the supply tool holder and the exit tool holder are arranged in a line in the direction in which the tool holder corrects light. The substrate opening device according to any one of claims 1 to 3 The illuminator and the sensor are mounted on a column on which the spindle is movably mounted. A method for controlling a substrate opening device, wherein the substrate opening device is provided with a tool holder for temporarily holding a drill bit that is transferred between the spindle and the spindle, and the method includes the following steps: correcting the tool holder for correcting light a step of correcting the light of the tool holder in a state where the processing table is at a specific position, and the bit is blocked by the drill bit while the drill bit is held on the tool holder; and the bit is to be transferred between the spindle and the tool holder. a step of moving the processing table to the specific position; determining a tool holder proofreading step of whether the tool holder collision light is blocked in a state where the processing table is in the specific position; and the tool holder in the tool holder proofing step The step of sounding an alarm when the light is blocked. The method for controlling a substrate opening device according to claim 5, further comprising the step of: generating a spindle collating light, wherein the spindle collating light is in a state where the spindle is at a predetermined position, if on the spindle Holding the drill bit, blocking the drill bit; moving the predetermined axial position to the predetermined position; and determining a spindle calibration step of whether the spindle calibration light is blocked in a state where the spindle is in the predetermined position; in the spindle calibration step The step of issuing an alarm in the case where the aforementioned spindle collates the light. The method for controlling a substrate opening device according to claim 5, Wherein the tool holder includes a supply tool holder and a withdrawal tool holder; the supply tool holder temporarily holds a drill supplied to the spindle, and the exit tool holder temporarily holds a drill that is withdrawn from the spindle, the supply tool holder and The aforementioned exit tool holders are arranged to be aligned in a straight line in the direction in which the tool holders collate the light.