CN103522331A - Boring control system and method of single-spindle boring machine - Google Patents
Boring control system and method of single-spindle boring machine Download PDFInfo
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- CN103522331A CN103522331A CN201310500956.3A CN201310500956A CN103522331A CN 103522331 A CN103522331 A CN 103522331A CN 201310500956 A CN201310500956 A CN 201310500956A CN 103522331 A CN103522331 A CN 103522331A
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Abstract
The invention discloses a boring control system and method of a single-spindle boring machine. According to the boring control system and method of the single-spindle boring machine, a drill bit is arranged on an output shaft of a main shaft of the boring machine; an auxiliary controller receives control commands sent out by a central processing unit, converts the control commands into strong electric signals through an input-and-output interface circuit and then transmits the strong electric signals to a frequency changer, and the frequency changer controls the starting, stopping and speed regulation of the main shaft of the boring machine; a sensor is arranged on the main shaft of the boring machine and is used for measuring the distance between the drill bit and a printed circuit board and feeding back a distance value to the central processing unit; a cylinder pushes the main shaft of the boring machine to move up and down; the central processing unit is electrically connected with a servo motor, sends out the control commands to the auxiliary controller, controls the cylinder to pressurize or reset, compares the distance value measured by the sensor with a preset target distance value for boring, and adjusts the output pressure of the cylinder at N stages to enable the distance value measured by the sensor to reach the preset target distance value step by step. The boring control system and method of the single-spindle boring machine can be used for controlling blind hole boring and prevent depth errors of a bored hole, and is high in accuracy.
Description
Technical field
The present invention relates to printed circuit board drilling technical field, more particularly, relate to a kind of drilling control system and method for single-axis drilling machine.
Background technology
As everyone knows, pcb board (Printed circuit board) or be called printed circuit board (PCB), it is important electronic unit, is the supporter of various electronic devices and components, is the supplier of various electronic devices and components connections.
Pcb board can be divided into single sided board, dual platen, the above multi-layer sheet of four laminates and soft board according to its application.Generally speaking, electronic product function is more complicated, loop distance is longer, contact pin number is more, and the required number of plies of PCB is also more, as high-order consumer electronics, information and communication product etc.; And soft board be mainly used in need curved around product in: as notebook computer, camera, automobile instrument etc.
Along with scientific and technological progress, all developing towards miniaturization of various consumption electronic products, the requirement such as portable in the hope of realizing, body is light, therefore, the size of relevant pcb board must be dwindled the requirement that could realize miniaturization of electronic products, exactly because this, cause the utilized area (area of layout device) of the pcb board on electronic product more and more less, and then cause the installing space of regional area components and parts on pcb board too nervous.
Insider is in order to plant more components and parts on the pcb board area limited, often adopt less device package, the meticulousr circuit of design, and on pcb board, lay more hole, on hole wall, be coated with metal conducting layer, in the hope of improving the density that is arranged on the various components and parts on pcb board, realize the more effect of multicomponent device is installed in limited space.
The effect of laying hole on pcb board mainly contains following two kinds: the first is used for installing electronic devices and components, and for holding and the fixing pin of components and parts, it two is that the printed wire that is positioned at the different laminations on pcb board is connected.
In existing pcb board manufacturing technology, the hole on pcb board is through hole and blind hole normally.Wherein, blind hole refers to the via that connects top layer and internal layer and do not connect whole plate.In the process of drilling blind hole, often need strictly to control the degree of depth of blind hole, but, the boring control accuracy of existing drilling machine is still not high enough, meanwhile, and because cylinder there will be the anxious phenomenon of stretching out of piston rod, output strength uprises suddenly, the drilling depth of the drill bit on the drilling machine main shaft that causes being promoted by cylinder produces error, and severe patient, even drills blind hole.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, a kind of drilling control system and method for single-axis drilling machine is provided, for controlling drilling blind hole operation, prevent that drilling depth from producing error, accuracy is high.
For achieving the above object, technical scheme provided by the invention is as follows: a kind of drilling control system of single-axis drilling machine, and it comprises:
Drilling machine main shaft, described drilling machine main shaft is installed on the screw mandrel of being controlled by servomotor, and the output shaft of described drilling machine main shaft is provided with drill bit;
Pilot controller, is delivered to frequency converter for receiving the control instruction that central processing unit sends and converting forceful electric power signal to through its input/output interface circuit;
Frequency converter, for receiving the forceful electric power signal of described pilot controller output, control described drilling machine main shaft startup, stop and speed governing;
Sensor, described sensor is installed on described drilling machine main shaft, for measuring the distance between described drill bit and printed circuit board (PCB) and feeding back distance value to central processing unit;
Cylinder, is flexibly connected with described drilling machine main shaft, promotes described drilling machine main shaft and moves up and down;
Central processing unit, is electrically connected with described servomotor; Send control instruction to described pilot controller; Controlling described cylinder pressurizes or resets; By described sensor measurement to distance value and the default target range value of drilling operation compare, minute N stage regulate the output pressure of described cylinder make described sensor measurement to distance value progressively reach default target range value.
Furthermore, this system also comprises: optical ruler, for measuring the transverse shifting distance of described drilling machine main shaft on described screw mandrel, feeds back signal to described central processing unit.
Furthermore, this system also comprises: contactor, and for receiving the control instruction of described central processing unit, control oil cooling machine and described drilling machine main shaft is carried out to cooling down operation and control vacuum cleaner and carry out dust suction operation.
The present invention also provides a kind of boring control method of single-axis drilling machine, and the method comprises the following steps:
(1) target range value and the borehole coordinate value between default described drill bit and printed circuit board (PCB);
(2) printed circuit board (PCB) is placed on to the board of described drilling machine main shaft below;
(3) described central processing unit is controlled described servomotor, makes described drilling machine main shaft on described screw mandrel, move to the specified coordinate position above corresponding printed circuit board (PCB);
(4) described central processing unit sends control instruction to described pilot controller, described pilot controller receives control instruction that described central processing unit sends and by its input/output interface circuit, converts forceful electric power signal to and be delivered to described frequency converter, and described frequency converter starts described drilling machine main shaft;
(5) described central processing unit is controlled described cylinder and is pressurizeed, and described cylinder promotes described drilling machine main shaft and moves down, and described drill bit starts boring;
(6) described central processing unit by described sensor measurement to described drill bit and the distance value between printed circuit board (PCB) and the default target range value of drilling operation compare, minute N stage regulate the output pressure of described cylinder make described sensor measurement to distance value progressively reach default target range value;
(7) when described sensor measurement to distance value while reaching default target range value, described central processing unit is controlled described cylinder and is resetted, described drilling machine main shaft moves up and gets back to initial position.
Furthermore, described step (6) specifically comprises:
Minute three phases regulates the output pressure of described cylinder, described central processing unit by described sensor measurement to described drill bit and the distance value between printed circuit board (PCB) and the default target range value of drilling operation compare;
First stage: when the distance value measuring reach default target range value 90% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 90% of required pressure;
Second stage: when the distance value measuring reach default target range value 95% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 95% of required pressure;
Phase III: when the distance value measuring reach default target range value 100% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 100% of required pressure;
Furthermore, the pressure in the cylinder of described cylinder pressurization cavity is measured by the pressure sensor that is arranged on described cylinder interior.
Furthermore, the method is further comprising the steps of:
By described optical ruler, measure the transverse shifting distance of described drilling machine main shaft on described screw mandrel, feed back signal to described central processing unit.
Furthermore, the method is further comprising the steps of:
Described contactor receives the control instruction of described central processing unit, controls oil cooling machine and described drilling machine main shaft is carried out to cooling down operation and control vacuum cleaner and carry out dust suction operation.
Beneficial effect of the present invention is:
Central processing unit of the present invention and described servomotor are electrically connected, be used for sending control instruction to described pilot controller, controlling described cylinder pressurizes or resets, by described sensor measurement to distance value and the default target range value of drilling operation compare, minute N stage regulate the output pressure of described cylinder make described sensor measurement to distance value progressively reach default target range value, avoided cylinder to occur that thereby the anxious drilling depth of stretching out the drill bit on the drilling machine main shaft that phenomenon causes being promoted by cylinder of piston rod produces error or drills blind hole, its accuracy is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the drilling control system of single-axis drilling machine of the present invention;
Fig. 2 is the structural representation of single-axis drilling machine of the present invention;
Schematic diagram when Fig. 3 is bit drills blind hole of the present invention.
The specific embodiment
In order to set forth thought of the present invention and object, below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Please refer to Fig. 1, Fig. 2 and Fig. 3, there is shown a kind of drilling control system of single-axis drilling machine, for controlling drilling blind hole, it comprises:
Drilling machine main shaft 1, described drilling machine main shaft 1 is installed on the screw mandrel 8 of being controlled by servomotor 2, and the output shaft of described drilling machine main shaft 1 is provided with drill bit 10;
Furthermore, this system also comprises: optical ruler 11, for measuring the transverse shifting distance of described drilling machine main shaft 1 on described screw mandrel 8, feeds back signal to described central processing unit 7.
Furthermore, this system also comprises: contactor 12, and for receiving the control instruction of described central processing unit 7, control 13 pairs of described drilling machine main shafts 1 of oil cooling machine and carry out cooling down operation and control vacuum cleaner 14 and carry out dust suction operation.
The present invention also provides a kind of boring control method of single-axis drilling machine, and the method comprises the following steps:
(1) target range value and the borehole coordinate value between default described drill bit 10 and printed circuit board (PCB);
(2) printed circuit board (PCB) is placed on to the board 9 of described drilling machine main shaft 1 below;
(3) described central processing unit 7 is controlled described servomotor 2, makes described drilling machine main shaft 1 on described screw mandrel 8, move to the specified coordinate position above corresponding printed circuit board (PCB);
(4) described central processing unit 7 sends control instruction to described pilot controller 3, the control instruction that the described central processing unit 7 of described pilot controller 3 reception sends converts forceful electric power signal to by its input/output interface circuit and is delivered to described frequency converter 4, and described frequency converter 4 starts described drilling machine main shaft 1;
(5) the described cylinder 6 of described central processing unit 7 control pressurizes, and described cylinder 6 promotes described drilling machine main shaft 1 and moves down, and described drill bit 10 starts boring;
(6) the default target range value of the described drill bit 10 that described central processing unit 7 measures described sensor 5 and the distance value between printed circuit board (PCB) and drilling operation compares, and divides the distance value that N stage regulates the output pressure of described cylinder 6 that described sensor 5 is measured progressively to reach default target range value;
(7) when the distance value measuring when described sensor 5 reaches default target range value, described central processing unit 7 is controlled described cylinder 6 and is resetted, and described drilling machine main shaft 1 moves up and gets back to initial position.
Furthermore, described step (6) specifically comprises:
Divide three phases to regulate the output pressure of described cylinder 6, the default target range value of the described drill bit 10 that described central processing unit 7 measures described sensor 5 and the distance value between printed circuit board (PCB) and drilling operation compares;
First stage: when the distance value measuring reach default target range value 90% time, the pressure in the cylinder pressurization cavity of described cylinder 6 is adjusted into an output pressure and makes drill bit 10 reach target range to be worth 90% of required pressure;
Second stage: when the distance value measuring reach default target range value 95% time, the pressure in the cylinder pressurization cavity of described cylinder 6 is adjusted into an output pressure and makes drill bit 10 reach target range to be worth 95% of required pressure;
Phase III: when the distance value measuring reach default target range value 100% time, the pressure in the cylinder of described cylinder 66 pressurization cavitys is adjusted into an output pressure and makes drill bit 10 reach target range to be worth 100% of required pressure;
Furthermore, the pressure in the cylinder of described cylinder 6 pressurization cavity is measured by the pressure sensor that is arranged on described cylinder 6 inside.
Furthermore, the method is further comprising the steps of:
By described optical ruler 11, measure the transverse shifting distance of described drilling machine main shaft 1 on described screw mandrel 8, feed back signal to described central processing unit 7.
Furthermore, the method is further comprising the steps of:
Described contactor 12 receives the control instruction of described central processing unit 7, controls 13 pairs of described drilling machine main shafts 1 of oil cooling machine and carries out cooling down operation and control vacuum cleaner 14 and carry out dust suction operation.
In sum, thereby the present invention has avoided cylinder to occur that the anxious drilling depth of stretching out the drill bit on the drilling machine main shaft that phenomenon causes being promoted by cylinder of piston rod produces error or drills blind hole, and its accuracy is high.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (8)
1. a drilling control system for single-axis drilling machine, is characterized in that, comprising:
Drilling machine main shaft, described drilling machine main shaft is installed on the screw mandrel of being controlled by servomotor, and the output shaft of described drilling machine main shaft is provided with drill bit;
Pilot controller, is delivered to frequency converter for receiving the control instruction that central processing unit sends and converting forceful electric power signal to through its input/output interface circuit;
Frequency converter, for receiving the forceful electric power signal of described pilot controller output, control described drilling machine main shaft startup, stop and speed governing;
Sensor, described sensor is installed on described drilling machine main shaft, for measuring the distance between described drill bit and printed circuit board (PCB) and feeding back distance value to central processing unit;
Cylinder, is flexibly connected with described drilling machine main shaft, promotes described drilling machine main shaft and moves up and down;
Central processing unit, is electrically connected with described servomotor; Send control instruction to described pilot controller; Controlling described cylinder pressurizes or resets; By described sensor measurement to distance value and the default target range value of drilling operation compare, minute N stage regulate the output pressure of described cylinder make described sensor measurement to distance value progressively reach default target range value.
2. the drilling control system of single-axis drilling machine according to claim 1, is characterized in that, also comprises:
Optical ruler, for measuring the transverse shifting distance of described drilling machine main shaft on described screw mandrel, feeds back signal to described central processing unit.
3. the drilling control system of single-axis drilling machine according to claim 1, is characterized in that, also comprises:
Contactor, for receiving the control instruction of described central processing unit, controls oil cooling machine and described drilling machine main shaft is carried out to cooling down operation and control vacuum cleaner and carry out dust suction operation.
4. the boring control method of single-axis drilling machine according to claim 1, is characterized in that, the method comprises the following steps:
(1) target range value and the borehole coordinate value between default described drill bit and printed circuit board (PCB);
(2) printed circuit board (PCB) is placed on to the board of described drilling machine main shaft below;
(3) described central processing unit is controlled described servomotor, makes described drilling machine main shaft on described screw mandrel, move to the specified coordinate position above corresponding printed circuit board (PCB);
(4) described central processing unit sends control instruction to described pilot controller, described pilot controller receives control instruction that described central processing unit sends and by its input/output interface circuit, converts forceful electric power signal to and be delivered to described frequency converter, and described frequency converter starts described drilling machine main shaft;
(5) described central processing unit is controlled described cylinder and is pressurizeed, and described cylinder promotes described drilling machine main shaft and moves down, and described drill bit starts boring;
(6) described central processing unit by described sensor measurement to described drill bit and the distance value between printed circuit board (PCB) and the default target range value of drilling operation compare, minute N stage regulate the output pressure of described cylinder make described sensor measurement to distance value progressively reach default target range value;
(7) when described sensor measurement to distance value while reaching default target range value, described central processing unit is controlled described cylinder and is resetted, described drilling machine main shaft moves up and gets back to initial position.
5. the boring control method of single-axis drilling machine according to claim 4, is characterized in that, described step (6) specifically comprises:
Minute three phases regulates the output pressure of described cylinder, described central processing unit by described sensor measurement to described drill bit and the distance value between printed circuit board (PCB) and the default target range value of drilling operation compare;
First stage: when the distance value measuring reach default target range value 90% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 90% of required pressure;
Second stage: when the distance value measuring reach default target range value 95% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 95% of required pressure;
Phase III: when the distance value measuring reach default target range value 100% time, the pressure in the cylinder pressurization cavity of described cylinder is adjusted into an output pressure and makes drill bit reach target range to be worth 100% of required pressure.
6. the boring control method of single-axis drilling machine according to claim 5, is characterized in that, the pressure in the cylinder pressurization cavity of described cylinder is measured by the pressure sensor that is arranged on described cylinder interior.
7. the boring control method of single-axis drilling machine according to claim 4, is characterized in that, the method is further comprising the steps of:
By described optical ruler, measure the transverse shifting distance of described drilling machine main shaft on described screw mandrel, feed back signal to described central processing unit.
8. the boring control method of single-axis drilling machine according to claim 4, is characterized in that, the method is further comprising the steps of:
Described contactor receives the control instruction of described central processing unit, controls oil cooling machine and described drilling machine main shaft is carried out to cooling down operation and control vacuum cleaner and carry out dust suction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500956.3A CN103522331A (en) | 2013-10-23 | 2013-10-23 | Boring control system and method of single-spindle boring machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500956.3A CN103522331A (en) | 2013-10-23 | 2013-10-23 | Boring control system and method of single-spindle boring machine |
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| CN103522331A true CN103522331A (en) | 2014-01-22 |
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| CN201310500956.3A Pending CN103522331A (en) | 2013-10-23 | 2013-10-23 | Boring control system and method of single-spindle boring machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932423A (en) * | 2015-07-08 | 2015-09-23 | 上海第二工业大学 | Display outer cover trepanning control method and apparatus |
| CN106736574A (en) * | 2016-12-02 | 2017-05-31 | 辽宁科技学院 | A kind of precision optical machinery manufacture brill mill dual-purpose apparatus |
-
2013
- 2013-10-23 CN CN201310500956.3A patent/CN103522331A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932423A (en) * | 2015-07-08 | 2015-09-23 | 上海第二工业大学 | Display outer cover trepanning control method and apparatus |
| CN104932423B (en) * | 2015-07-08 | 2018-04-20 | 上海第二工业大学 | A kind of display outer cover perforate control method and device |
| CN106736574A (en) * | 2016-12-02 | 2017-05-31 | 辽宁科技学院 | A kind of precision optical machinery manufacture brill mill dual-purpose apparatus |
| CN106736574B (en) * | 2016-12-02 | 2018-11-02 | 辽宁科技学院 | A kind of precision machinery manufacture brill mill dual-purpose apparatus |
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Application publication date: 20140122 |