CN109509602B - Laser resistance-adjusting machine - Google Patents
Laser resistance-adjusting machine Download PDFInfo
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- CN109509602B CN109509602B CN201811654906.XA CN201811654906A CN109509602B CN 109509602 B CN109509602 B CN 109509602B CN 201811654906 A CN201811654906 A CN 201811654906A CN 109509602 B CN109509602 B CN 109509602B
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- 238000009966 trimming Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims description 30
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000003698 laser cutting Methods 0.000 abstract description 12
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 6
- 239000010409 thin film Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 238000010330 laser marking Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
- H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
- H01C17/242—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by laser
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- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Laser Beam Processing (AREA)
Abstract
The application provides a laser resistor trimming machine, and belongs to the technical field of laser cutting equipment. The laser resistance-adjusting machine comprises an industrial personal computer, an ACS multi-axis motion controller, a multi-axis guide rail and a laser, wherein the ACS multi-axis motion controller is electrically connected with the industrial personal computer, the laser and the multi-axis guide rail respectively. The laser resistor trimming machine is controlled by the ACS multi-axis motion controller to control the opening and closing of the laser based on the position of the resistor to be trimmed, and meanwhile, the ACS multi-axis motion controller is used for controlling the multi-axis guide rail to drive the resistor to be trimmed to move in cooperation with the angle of the emitted laser, so that the emitted laser is prevented from generating cutting errors on a long distance, the cutting precision of the laser is improved, and scribing and trimming can be performed on the same laser resistor trimming machine.
Description
Technical Field
The application relates to the technical field of laser cutting equipment, in particular to a laser resistance-adjusting machine.
Background
A laser resistor trimming machine uses a beam of extremely fine laser beam to strike on thick and thin film resistors, and cuts thick and thin film circuits by vaporizing and evaporating the resistor bodies. The laser beam cuts the thick and thin film resistor according to the preset program of the computer, and the resistance value of the resistor is changed by changing the geometric shape of the thick and thin film resistor. Along with the progress of laser cutting process, through real-time measurement circuit can monitor thickness, the change of film resistance value in real time, make thickness, film resistance's resistance value constantly approximate target resistance value. When the thick and thin film resistor reaches the target resistance, the laser beam is turned off, and the laser resistance adjusting process is realized.
In the prior art, when the laser resistor trimming machine is used, a PC machine is used as a laser resistor trimming machine host, and the PC machine realizes the opening and closing of a laser scanning head and the angle control of the laser resistor trimming machine through a software program and a hardware control circuit. However, due to feedback delay and other reasons, the PC host controls the laser resistor trimming machine to execute the light spot positioning and scanning control driving program, the laser resistor trimming application program is not continuous or stopped, the laser is not synchronous with the movement of the chip resistor, so that the scanning and laser cutting are unstable, and the problem of error easily occurs on long-distance scribing is solved.
Disclosure of Invention
The application aims to provide a laser resistor trimming machine so as to solve the problems that scanning and laser cutting are unstable and errors are easy to occur on long-distance scribing in the prior art.
Embodiments of the present application are implemented as follows:
the application provides a laser resistance-adjusting machine, which comprises an industrial personal computer, an ACS multi-axis motion controller, a multi-axis guide rail and a laser, wherein the ACS multi-axis motion controller is electrically connected with the industrial personal computer, the laser and the multi-axis guide rail respectively; the ACS multi-axis motion controller controls the multi-axis guide rail to drive the resistor to be adjusted to move, controls the laser to be opened and closed when the resistor to be adjusted moves to a preset position through internal hardware of the ACS multi-axis motion controller, and lines and adjusts the resistor to be adjusted through the laser emitted by the laser.
In the implementation process, the ACS multi-axis motion controller controls the multi-axis guide rail to drive the resistor to be adjusted to move, so that the outgoing laser after matching and adjusting the outgoing angle is used for accurately cutting the resistor to be measured, meanwhile, the ACS multi-axis motion controller can also directly control the start and stop of the laser based on the PEG (position event triggering) displacement register when the multi-axis guide rail drives the resistor to be adjusted to move to a preset position, the response speed and the cutting precision of the laser are improved, the cutting error of the emitted laser on a long distance is avoided, and therefore the same laser resistor adjustor can be used for scribing and resistor adjustment, and the resistor adjustment precision and efficiency of the laser resistor adjustor are improved.
In an optional embodiment of the present application, the laser resistor trimming machine further includes a galvanometer and a marking card, the marking card is electrically connected with the galvanometer and the laser, and the marking card controls the galvanometer to perform angle adjustment on the emission laser of the laser.
In the implementation process, the marking card is adopted to control the galvanometer to accurately adjust the angle of the emergent laser, and the ACS multi-axis motion controller is matched with the position of the resistor to be adjusted and the laser to be opened and closed, so that the accuracy and the efficiency of scribing and repairing the resistor are improved.
In an optional embodiment of the application, the laser resistance-adjusting machine further comprises a charge-coupled device image sensor, the charge-coupled device image sensor is connected with the industrial personal computer, and the reflected light of the resistance to be adjusted is incident to the charge-coupled device image sensor through the vibrating mirror.
In the implementation process, the industrial personal computer can generate a control signal based on the image data of the resistance to be regulated, which is acquired by the image sensor of the charge coupled device, so that the ACS multi-axis motion controller and the marking card respectively control the multi-axis guide rail and the laser to carry out scribing resistance adjustment based on the control signal, and the accuracy of scribing resistance adjustment is improved.
In an alternative embodiment of the application, a beam expander is further arranged between the galvanometer and the optical path of the laser.
In the implementation process, the beam diameter and the divergence angle of the laser are adjusted by adopting the beam expander, so that the laser beam after beam expansion is focused to be smaller, and the accuracy of laser cutting is improved.
In an alternative embodiment of the present application, the multi-axis guide rail includes an X-axis guide rail, a Y-axis guide rail, and an R-axis guide rail, where the X-axis guide rail and the Y-axis guide rail are disposed in a horizontal direction and perpendicular to each other, and the R-axis guide rail is driven by a direct drive motor to rotate by a preset angle with respect to the horizontal direction.
In the implementation process, the multi-axis guide rail drives the resistor to be adjusted to move through the X-axis guide rail and the Y-axis guide rail under the control of the ACS multi-axis motion controller, and drives the resistor to be adjusted to horizontally align through the R-axis guide rail, so that the laser cutting position is accurately controlled, and the accuracy of laser resistor adjustment is improved.
In an alternative embodiment of the application, the laser resistor trimming machine further comprises a leveling camera arranged right above the R-axis guide rail.
In an optional embodiment of the present application, the laser resistance-adjusting machine further includes an adapter plate, internal hardware of the ACS multi-axis motion controller is connected with the laser through the adapter plate, and the industrial personal computer is connected with the laser sequentially through the ACS multi-axis motion controller and the adapter plate.
In the implementation process, the internal hardware of the ACS multi-axis motion controller can directly control the on-off of the laser through the adapter plate, and the industrial personal computer can control the laser through the ACS multi-axis motion controller and the adapter plate, so that the delay of laser control is reduced, and the accuracy of laser resistance adjustment is improved.
In an optional embodiment of the present application, the laser resistance adjuster further includes a loading and unloading module, where the loading and unloading module includes a motion control card, a servo driving motor, a new material shaft, an old material shaft, a material moving shaft and a resistance measuring shaft, where the new material shaft, the old material shaft, the material moving shaft and the resistance measuring shaft are connected with the motion control card through separate servo driving motors, and the motion control card is connected with the industrial personal computer.
In an alternative embodiment of the application, a resistance meter is arranged on the resistance measuring shaft, and the resistance meter moves vertically under the drive of the resistance measuring shaft.
In an alternative embodiment of the present application, the laser resistor trimming machine includes a first electric control board and a second electric control board, the first electric control board is used for placing components which are easy to generate crosstalk, the second electric control board is used for placing electrical protection and input and output components, and the ACS multi-axis motion controller, the motion control card and the servo driving motor are arranged on the first electric control board.
In the implementation process, through the partition setting of the first electric control board and the second electric control board, the components which are easy to generate crosstalk and the power supply component are respectively arranged on the first electric control board and the second electric control board, so that the internal crosstalk of the laser resistance-adjusting machine is reduced, and the safety and the working precision of the laser resistance-adjusting machine are improved.
In an alternative embodiment of the application, a circuit breaker and a filter are arranged on the second electric control board, the circuit breaker is used for protecting the industrial personal computer, the ACS multi-axis motion controller, the galvanometer and the laser, and the filter is arranged between the laser resistor-trimming machine and a power supply.
In the implementation process, the circuit breaker and the filter are used for carrying out electrical protection on the laser resistance-adjusting machine, so that the safety of the laser resistance-adjusting machine is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
The above and other objects, features and advantages of the present application will become more apparent from the accompanying drawings in which like reference characters refer to the same parts throughout the several views, and which are not intended to be drawn to scale in actual size or the like, emphasis instead being placed upon illustrating the principles of the application.
FIG. 1 is a block diagram of a laser resistor-trimming machine according to the present application;
FIG. 2 is a schematic diagram of an optical path system according to an embodiment of the present application;
FIG. 3 is a block diagram of a handling module according to an embodiment of the present application;
fig. 4 is a block diagram of a first electronic control board according to an embodiment of the present application;
fig. 5 is a block diagram of a second electric control board according to an embodiment of the present application.
Icon: 10-a laser resistor adjustor; 11-an industrial personal computer; a 12-ACS multi-axis motion controller; 13-multiaxial guideways; 14-clamping; 15-vibrating mirror; 16-marking cards; 17-a laser; 18-loading and unloading module; 181-a motion control card; 182-servo drive motor; 183-new axes; 184-old material shaft; 185-a material moving shaft; 186-resistance axis.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of this application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The inventor researches and discovers that the thick film resistor commonly used at present is exemplified by laser trimming, and the thick film resistor is always subjected to positive and negative errors due to inaccuracy of screen printing operation, nonuniformity of the surface of a substrate and nonuniformity of sintering conditions, and if the resistance exceeds a nominal value, the resistance cannot be corrected, but is generally lower than about 30% of a target value after printing and sintering, so that the target value can be reached only through laser trimming. In the actual resistor trimming process, however, the rapid and accurate positioning of the resistor to be tuned plays a vital role in the final resistor trimming speed and precision, a stepping electric platform or a servo electric platform is adopted in the existing resistor trimming equipment to position the resistor to be tuned, and the PC host controls the laser resistor trimming machine to perform the spot positioning and scanning control driving program due to feedback delay and the like, so that the laser resistor trimming application program is not continuous or stopped in operation, thereby causing the problem of poor laser cutting precision. Meanwhile, the control signal delay can also cause the on-off of the laser and the movement of the chip resistor to be asynchronous, so that the problems of unstable scanning and laser cutting and easy error occurrence on long-distance scribing exist.
In order to solve the above-mentioned problems, an embodiment of the present application provides a laser resistor trimming machine 10, please refer to fig. 1, fig. 1 is a block diagram of a laser resistor trimming machine according to the present application.
The laser resistor trimming machine 10 comprises an industrial personal computer 11, an ACS multi-axis motion controller 12, a multi-axis guide rail 13 and a laser 17, wherein the multi-axis guide rail 13 drives a resistor to be trimmed to move under the control of the ACS multi-axis motion controller 12, and the laser 17 lines and trims the resistor to be trimmed under the control of the ACS multi-axis motion controller 12 and the industrial personal computer 11. It should be appreciated that the laser resistor trimming machine 10 may also include a clamp 14, a galvanometer 15, and a marking card 16. The ACS multi-axis motion controller 12 is respectively and electrically connected with the industrial personal computer 11, the marking card 16, the laser 17 and the multi-axis guide rail 13, and the marking card 16 is respectively and electrically connected with the galvanometer 15 and the laser 17.
The industrial control computer 11 is an industrial control computer, is a tool generic for detecting and controlling production processes, electromechanical devices and process equipment by adopting a bus structure, and has important computer attributes and characteristics, such as a computer main board, a CPU, a hard disk, a memory, peripheral equipment and an interface, and has an operating system, a control network and protocol, computing capability and a friendly man-machine interface. As an alternative embodiment, the industrial control computer 11 may be a computer digital control system (Computer numerical control, CNC) type industrial control computer, which adopts a microprocessor or a dedicated microcomputer digital control system, and implements control logic by a system program (software) stored in a memory in advance, implements part or all of the digital control functions, and is connected to peripheral devices through an interface, so as to be suitable for the laser resistor-trimming machine 10 provided in this embodiment.
The industrial personal computer 11 may output a rail control signal to the ACS multi-axis motion controller 12 in this embodiment, and transmit the rail control signal to the ACS multi-axis motion controller 12 to control the movement of the multi-axis rail 13. The guide rail control signal may be generated by the industrial personal computer 11 based on the current resistance value to be adjusted and the resistance value required, and it controls the laser resistor adjuster 10 to perform laser cutting at the corresponding position and time.
The ACS multi-axis motion controller 12 can synchronously control 64 axes at most, and the open EtherCAT style can support the drive and input/output interfaces of a third party, and can also cooperate with software tools for analysis, setting and diagnosis, and can control any type (single-phase, two-phase, three-phase, DC brushless, etc.) motor through setting, and realize open-loop, closed-loop or double-closed-loop control. In addition, ACS multiaxial motion controller 12 includes a plurality of functional modules, such as a PEG (position event triggered) position register and motor band brake control module, among others.
In this embodiment, the ACS multi-axis motion controller 12 controls the multi-axis guide rail 13 to move, so as to drive the resistor to be adjusted clamped on the clamp 14 to move relative to the laser emitted by the laser 17, and simultaneously, the ACS multi-axis motion controller 12 also directly controls the opening and closing of the laser 17 when the multi-axis guide rail 13 moves to a preset position through the position event triggering function of the PEG position register, thereby improving the accuracy of adjusting the cutting position of the resistor to be measured and the opening and closing response speed of the laser 17, enhancing the coordination between the two, and further improving the scribing efficiency, the resistance adjusting efficiency and the accuracy.
It should be appreciated that the ACS multi-axis motion controller 12 may be, but is not limited to, an ACS CMba-hp model motion controller.
The multi-axis rail 13 may include an X-axis rail, a Y-axis rail, and an R-axis rail. As an alternative embodiment, the X-axis guide rail and the Y-axis guide rail are disposed in a horizontal plane and perpendicular to each other, and each is movable in an axial direction; the R-axis guide rail can be a movable guide rail driven by a direct driving motor, and can rotate for a certain angle relative to the horizontal direction under the driving of the motor so as to enable the resistor to be regulated to be in a horizontal state. Wherein, the direct drive motor includes a torque motor and a linear motor, and a connection mechanism such as a decelerator, a gear box, a pulley, etc. is omitted because of a large output torque thereof.
In order to make the R-axis guide rail drive the clamp 14 to perform angular rotation, it is necessary to determine whether the resistor to be adjusted is in a horizontal state. As an optional implementation manner, in this embodiment, a leveling camera is disposed directly above the R-axis guide rail, and the industrial personal computer 11 determines whether the resistor to be adjusted is in a horizontal state based on an image of the resistor to be adjusted acquired by the leveling camera. It should be appreciated that in other embodiments, an attitude sensor provided on the clamp 14 or other means of determining whether the resistance to be tuned is in a horizontal state may also be employed.
The laser emitted by the laser of the traditional laser marking machine is usually in a fixed posture, the angle adjustment cannot be performed, and the problem of low flexibility and precision of laser cutting exists, so that the laser resistor adjusting machine 10 provided by the embodiment of the application also adopts the vibrating mirror 15 to perform angle adjustment on the emitted laser of the laser 17, and the problem of low flexibility and precision of laser cutting is solved. The vibrating mirror 15 is a vibrating mirror scanning marking head, and is mainly composed of an XY scanning mirror, a vibrating mirror, marking software controlled by a computer and the like, and the working principle of the vibrating mirror is that laser beams are incident on two reflecting mirrors (scanning mirrors), the reflecting angles of the reflecting mirrors are controlled by the computer, and the two reflecting mirrors can scan along X, Y axes respectively, so that the deflection of the laser beams is achieved, and a laser focusing point with a certain power density moves on marking materials according to the required requirements, so that permanent marks are left on the surfaces of the materials. The laser marking application range of the vibrating mirror 15 is wide, vector marking and dot matrix marking can be performed, the marking range is adjustable, and the laser marking device has the advantages of high response speed, high marking speed (hundreds of characters can be marked per second), high marking quality, good light path sealing performance, strong environmental adaptability and the like, so that the resistor to be modulated can be accurately and efficiently marked after the vibrating mirror 15 is used for marking and controlling the laser 17.
Meanwhile, when the laser 17 is only adjusted to emit laser deflection by the galvanometer 15 to scribe the resistor to be adjusted, scribing offset is usually generated due to delay of control signals of the industrial personal computer 11 or unsynchronization of the start and stop of the laser 17 and the movement position of the resistor to be adjusted when the length of the required scribing is longer. In this embodiment, the ACS multi-axis motion controller 12 is used to directly control the motion of the multi-axis guide rail 13 and the opening and closing of the laser 17, so as to reduce the delay of the control of the industrial personal computer 11, enhance the control coordination of the two, and improve the problem of scribing offset, thereby enabling the laser resistor trimming machine 10 to scribe the resistor to be adjusted.
When the galvanometer 15 controls the deflection of the light beam of the laser 17, the driving control is needed by the marking card 16, and the industrial personal computer 11 is connected with the galvanometer 15 and the laser 17 through the marking card 16. The marking card 16 in this embodiment may be, but is not limited to, a SamLight marking card, which is connected to the industrial personal computer 11 through a USB interface, calculates laser and galvanometer signals in real time, performs online grid correction on the laser and galvanometer signals, and is suitable for two-dimensional and three-dimensional marking systems.
It should be understood that, the industrial personal computer 11 designs a laser scribing and resistance adjusting scheme according to the specific position and image of the resistor to be adjusted, so that the embodiment also adopts a charge coupled device image sensor to acquire the specific image data of the resistor to be adjusted. The CCD image sensor (Charge Coupled Device, CCD) is made of a semiconductor material with high sensitivity, can convert light into electric charge, and convert the electric charge into digital signals through an analog-digital converter chip, and the digital signals are stored by a flash memory or a built-in hard disk card inside the camera after being compressed, so that the data can be easily transmitted to a computer, and the image can be modified according to the needs by means of the processing means of the computer.
In order to improve the laser adjustment precision, a beam expander is further disposed between the galvanometer 15 and the optical path of the laser 17 in this embodiment, and then the galvanometer 15, the laser 17, the beam expander and the CCD sensor form an optical path system.
Further, in the present embodiment, the optical path system may further include a field lens provided between the galvanometer 15 and the resistance to be adjusted, the galvanometer 15 is composed of an X galvanometer and a Y galvanometer, and the reflected light received from the galvanometer 15 is made incident into the CCD sensor by the total reflection mirror and the reflection mirror. Referring to fig. 2, fig. 2 is a schematic diagram of an optical path system according to an embodiment of the application.
As an alternative embodiment, in order to further improve the control consistency of the laser resistor adjuster 10, an adapter plate is further provided in this embodiment. The ACS multi-axis motion controller 12 is connected with the adapter board, and signals output by internal hardware of the ACS multi-axis motion controller 12 are directly converted into MO/PA signals required by the laser 17 through the adapter board and then output to the laser 17, so that the on-off of the laser 17 is directly controlled. Meanwhile, the control signal of the industrial personal computer 11 can be output to the laser 17 through the adapter plate.
Before the laser resistor trimming machine 10 is used for scribing and trimming resistors to be trimmed, the resistors to be trimmed are required to be blanked, wherein feeding is to place new resistors to be trimmed which need scribing and trimming on the clamp 14, and the corresponding blanking is to take out the resistors which finish scribing and trimming in the clamp 14. In order to accomplish the above steps, the laser resistor trimming machine 10 of the present embodiment further includes a loading and unloading module 18, please refer to fig. 3, fig. 3 is a block diagram of a loading and unloading module according to an embodiment of the present application. The loading and unloading module 18 comprises a motion control card 181, a servo driving motor 182, a new material shaft 183, an old material shaft 184, a material moving shaft 185 and a resistance measuring shaft 186, wherein the motion control card 181 is connected with the industrial personal computer 11 and is respectively connected with the four servo driving motors 182 in a serial communication mode, and the four servo driving motors 182 respectively drive the new material shaft 183, the old material shaft 184, the material moving shaft 185 and the resistance measuring shaft 186. The new material shaft 183 is used for conveying the to-be-regulated resistor which is not subjected to scribing and repairing to the corresponding position of the material moving shaft 185, the old material shaft 184 is used for conveying the to-be-measured resistor from the resistor which is subjected to scribing and repairing of the unloading fixture 14, the material moving shaft 185 can hold and take the to-be-measured resistor through adsorption, grabbing or other modes, the resistance measuring shaft 186 is a Z shaft in the vertical direction in a general three-dimensional shaft system, a resistor meter can be arranged on the resistance measuring shaft 186, and the resistor meter can move to the plane where the fixture 14 is positioned under the drive of the resistance measuring shaft 186 to finish resistance value test on the to-be-measured resistor.
Further, before the new material of the new material shaft 183 is obtained or after the old material shaft is blanked, identification information of the processing object is generally required to be determined, and the laser resistance adjuster 10 in this embodiment may be provided with a code scanning gun for identifying a two-dimensional code or other identification.
It should be understood that the motion control card 181 in the above embodiment may be, but is not limited to, the PCI-7856 model, the servo drive motor 182 may be, but is not limited to, the MINAS A6 series motor, and the resistance meter may be, but is not limited to, the RM3545 model of the meter.
In addition to the accuracy and efficiency of laser trimming, the safety of the laser trimming machine 10 is also typically considered. In order to improve the safety of the laser resistor trimming machine 10, the embodiment further adopts an electric control board separation layout, the laser resistor trimming machine 10 comprises a first electric control board and a second electric control board, the first electric control board is used for placing components which are easy to generate crosstalk, and the second electric control board is used for placing electric protection and input and output components, so that the crosstalk of power supply current to other components is avoided, and the safety and the operation stability of the laser resistor trimming machine 10 are improved.
Referring to fig. 4, fig. 4 is a block diagram of a first electronic control board according to an embodiment of the present application. The first electric control board is provided with an ACS multi-axis motion controller 12, a marking card 16, a motion control card 181, four servo driving motors 182, a laser power supply, a galvanometer power supply and a driving power supply. The laser power supply can be, but is not limited to, an HRP-600-24 model power supply; the drive power source is used to power the ACS multi-axis motion controller 12 and the servo drive motor 182, which may be, but is not limited to, an NDR-240-24 model power source; the galvanometer power source may be a suitable ac power source.
Referring to fig. 5, fig. 5 is a block diagram of a second electric control board 182 according to an embodiment of the present application. The second electric control board is provided with a breaker, a contactor, a relay and a filter. The circuit breaker may be a multi-way circuit breaker for protecting ACS multi-axis motion controller 12, galvanometer 15, laser 17, motion control card 181, etc. A filter is then provided between the ac power source connected from the mains and the laser resistor-modulator 10 for filtering the current clutter.
In the implementation process, through the partition arrangement of the first electric control board and the second electric control board, the components which are easy to generate crosstalk and the power supply component are respectively arranged on the first electric control board and the second electric control board, so that the internal crosstalk of the laser resistor trimming machine 10 is reduced, and the safety and the working precision of the laser resistor trimming machine 10 are improved. And the laser resistance adjuster 10 is electrically protected through the arranged circuit breaker, contactor, relay and filter, so that the safety and stability of the laser resistance adjuster 10 are further improved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (3)
1. The laser resistance-adjusting machine is characterized by comprising an industrial personal computer, an ACS multi-axis motion controller, a multi-axis guide rail and a laser, wherein the ACS multi-axis motion controller is electrically connected with the industrial personal computer, the laser and the multi-axis guide rail respectively;
the ACS multi-axis motion controller controls the multi-axis guide rail to drive the resistor to be regulated to move, controls the laser to be started and stopped when the resistor to be regulated moves to a preset position through internal hardware of the ACS multi-axis motion controller, and lines and regulates resistance of the resistor to be regulated through the emitted laser of the laser; wherein, control through self internal hardware when waiting for the resistance to move to preset position the start-stop of laser instrument, include: the signal output by the internal hardware of the ACS multi-axis motion controller is directly converted into an MO/PA signal required by the laser through the adapter plate and then is output to the laser, so that the on-off of the laser is directly controlled;
the laser resistor-adjusting machine further comprises a vibrating mirror and a marking card, wherein the marking card is respectively and electrically connected with the vibrating mirror and the laser, and controls the vibrating mirror to perform angle adjustment on the emitted laser of the laser;
the laser resistance-adjusting machine further comprises a charge-coupled device image sensor, wherein the charge-coupled device image sensor is connected with the industrial personal computer, and reflected light of the resistance to be adjusted is incident to the charge-coupled device image sensor through the vibrating mirror;
a beam expander is further arranged between the vibrating mirror and the light path of the laser;
the multi-axis guide rail comprises an X-axis guide rail, a Y-axis guide rail and an R-axis guide rail, wherein the X-axis guide rail and the Y-axis guide rail are arranged along the horizontal direction and are mutually perpendicular, and the R-axis guide rail can rotate for a preset angle relative to the horizontal direction under the drive of a direct drive motor;
the laser resistance-adjusting machine further comprises an adapter plate, wherein the internal hardware of the ACS multi-axis motion controller is connected with the laser through the adapter plate, and the industrial personal computer is connected with the laser sequentially through the ACS multi-axis motion controller and the adapter plate;
the laser resistance adjusting machine further comprises a loading and unloading module, wherein the loading and unloading module comprises a motion control card, a servo driving motor, a new material shaft, an old material shaft, a material moving shaft and a resistance measuring shaft, the new material shaft, the old material shaft, the material moving shaft and the resistance measuring shaft are respectively connected with the motion control card through separate servo driving motors, and the motion control card is connected with the industrial personal computer;
the resistance measuring shaft is provided with a resistance meter which moves vertically under the drive of the resistance measuring shaft;
the laser resistance-adjusting machine comprises a first electric control board and a second electric control board, wherein the first electric control board is used for placing components which are easy to generate crosstalk, the second electric control board is used for placing electric protection and input and output components, and the ACS multi-axis motion controller, the motion control card and the servo driving motor are arranged on the first electric control board.
2. The laser resistor trimming machine of claim 1, further comprising a leveling camera disposed directly above the R-axis guide rail.
3. The laser resistor trimming machine according to claim 1, wherein a circuit breaker and a filter are arranged on the second electric control board, the circuit breaker is used for protecting the industrial personal computer, the ACS multi-axis motion controller, the galvanometer and the laser, and the filter is arranged between the laser resistor trimming machine and a power supply.
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| CN201811654906.XA CN109509602B (en) | 2018-12-29 | 2018-12-29 | Laser resistance-adjusting machine |
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| CN201811654906.XA CN109509602B (en) | 2018-12-29 | 2018-12-29 | Laser resistance-adjusting machine |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110164641A (en) * | 2019-05-13 | 2019-08-23 | 深圳市杰普特光电股份有限公司 | The control method of laser resistor trimming system |
| CN110233017A (en) * | 2019-07-09 | 2019-09-13 | 深圳市杰普特光电股份有限公司 | Laser resistance adjuster |
| CN112420301B (en) * | 2019-08-22 | 2022-12-09 | 深圳市杰普特光电股份有限公司 | Resistance repairing machine and resistance repairing method |
| CN111687544B (en) * | 2020-06-24 | 2022-04-19 | 南京工业职业技术学院 | Laser resistance adjusting method based on precise displacement of piezoelectric ceramics |
| CN112509773B (en) * | 2020-10-23 | 2022-08-12 | 浙江森尼克半导体有限公司 | Adjusting equipment assembly of Hall current laser resistance trimming machine |
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