CN108983460B - Positioning precision compensation system and method of probe crimping device - Google Patents
Positioning precision compensation system and method of probe crimping device Download PDFInfo
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Abstract
The application discloses a positioning precision compensation system and a method of a probe crimping device, wherein the system comprises the probe crimping device, a positioning precision measuring device and a controller; the controller comprises a measurement control module, a displacement driving module, a data processing module and a positioning precision compensation module; the probe crimping device is erected above the test fixture and is connected with the displacement driving module; the displacement driving module is connected with the measurement control module; the positioning precision measuring device is connected with the measurement control module; the measurement control module is connected with the data processing module; the data processing module is connected with the positioning precision compensation module. Compared with the prior art, the system and the method realize automatic control of the probe crimping device and the positioning precision measuring device, simultaneously improve the testing efficiency and the data accuracy, and obtain a more accurate positioning precision compensation curve, so that the positioning precision of the probe crimping device after data compensation is higher, and the use requirement is met.
Description
Technical Field
The application relates to the technical field of LCD detection, in particular to a positioning precision compensation system and method of a probe crimping device.
Background
Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, no radiation, etc., and is widely used, such as smart phone screen, digital camera screen, computer screen, and smart tv screen.
In the production process of the LCD, a detection device is required to be used for connecting a connector of a terminal of a Flexible Printed Circuit (FPC) of the LCD with a probe of the detection device, so as to perform a lighting test on the LCD. Fig. 1 is a schematic structural diagram of a Cell lighting detection device, which mainly uses motors of an X axis, a Y axis, a Z axis and a theta axis on a probe needle to determine the relative position between the needle and an LCD pixel point. In the process of positioning the pixel point by the needle head, the linear motor drives the probe crimping device to do linear motion, the rotating motor drives the probe crimping device to do rotating motion, and the difference value between the theoretical displacement and the actual displacement of the probe needle head driven by the motor is the positioning precision of the probe crimping device. Also, the positioning accuracy directly affects the lighting success rate.
With the higher screen resolution of various electronic products, the distance between pixel points on the circuit board is smaller and smaller, which is about 50 μm, so that the positioning accuracy of the Cell lighting detection equipment is required to be higher. In the existing method for testing and compensating the positioning accuracy of the Cell lighting detection equipment, a PLC is operated by one person to control the motion of a motor shaft, a laser interferometer is operated by one person to record the test value (absolute positioning accuracy) of a test point, and a plurality of persons continuously record data, so that the efficiency is low and the error is easy to occur. In addition, the tester continuously records data and determines the correctness of the test, so that the actual test time of the laser interferometer is short, and the test efficiency is further reduced.
Disclosure of Invention
The application provides a positioning precision compensation system and method of a probe crimping device, which aim to solve the problem of low testing efficiency in the conventional compensation method.
In a first aspect, the present application provides a positioning accuracy compensation system for a probe crimping apparatus, the system comprising: the device comprises a probe crimping device, a positioning precision measuring device and a controller; the controller comprises a measurement control module, a displacement driving module, a data processing module and a positioning precision compensation module;
the probe crimping device is erected above the test fixture and is connected with the displacement driving module; the displacement driving module is connected with the measurement control module; the positioning precision measuring device is connected with the measurement control module; the measurement control module is connected with the data processing module; the data processing module is connected with the positioning precision compensation module;
wherein:
the measurement control module is used for sending a displacement instruction to the displacement driving module according to the position information of the next preset data acquisition point of the LCD to be measured when a starting signal or a measurement feedback signal sent by the positioning precision measuring device is received; when a displacement feedback signal sent by a displacement driving module is received, sending a measurement instruction to the positioning precision measurement device;
the displacement driving module is used for driving the probe crimping device according to the received displacement instruction so as to enable the probe needle head to move to a corresponding data acquisition point;
the positioning precision measuring device is used for measuring the actual displacement of the probe needle according to the received measuring instruction;
the data processing module is used for determining a positioning precision compensation curve according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point;
and the positioning precision compensation module is used for compensating the positioning precision of the probe crimping device according to the positioning precision compensation curve.
Further, the probe crimping device comprises an X-direction driving shaft, a Y-direction driving shaft, a Z-direction driving shaft and a theta-direction driving shaft.
Further, the displacement instruction comprises an X-direction displacement instruction, a Y-direction displacement instruction and a theta-direction displacement instruction.
Further, the data processing module is specifically configured to:
obtaining a positioning error value of the probe crimping device to each data acquisition point according to the actual displacement and the theoretical displacement from the probe needle to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value;
and fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to the X-direction error value, the X-direction theoretical displacement, the Y-direction error value, the Y-direction theoretical displacement and the theta-direction error value and the theta-direction theoretical displacement from the probe head to each data acquisition point, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves.
Further, the positioning accuracy compensation module is specifically configured to:
determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to the cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft respectively;
and inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into the displacement driving module so as to compensate the positioning precision of the probe crimping device.
In a second aspect, an embodiment of the present application further provides a method for compensating positioning accuracy of a probe crimping apparatus, where the method includes:
when a starting signal or a measurement feedback signal sent by a positioning precision measuring device is received, driving a probe crimping device according to the position information of the next preset data acquisition point of the LCD to be measured so as to enable a probe needle head to move to the corresponding data acquisition point;
when a displacement feedback signal is received, controlling a positioning precision measuring device to measure the actual displacement of the probe needle head;
determining a positioning precision compensation curve of the probe crimping device according to the actual displacement and the theoretical displacement from the probe needle to each data acquisition point;
and according to the positioning precision compensation curve, performing positioning precision compensation on the probe crimping device.
Further, the probe crimping device comprises an X-direction driving shaft, a Y-direction driving shaft, a Z-direction driving shaft and a theta-direction driving shaft.
Further, the driving probe crimping device according to the position information of the next preset data acquisition point of the LCD to be tested includes:
generating a displacement instruction according to the position information of the next preset data acquisition point of the LCD to be detected; the displacement instruction comprises an X-direction displacement instruction, a Y-direction displacement instruction and a theta-direction displacement instruction;
and driving the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft according to the X-direction displacement instruction, the Y-direction displacement instruction and the theta-direction displacement instruction respectively.
Further, the determining a positioning accuracy compensation curve according to the actual displacement and the theoretical displacement from the probe tip to each data acquisition point comprises:
obtaining a positioning error value of the probe crimping device to each data acquisition point according to the actual displacement and the theoretical displacement from the probe needle to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value;
and fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to the X-direction error value, the X-direction theoretical displacement, the Y-direction error value, the Y-direction theoretical displacement and the theta-direction error value and the theta-direction theoretical displacement from the probe head to each data acquisition point, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves.
Further, according to the positioning accuracy compensation curve, the positioning accuracy compensation is performed on the probe crimping device, and the method includes the following steps:
determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to the cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft respectively;
and inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into a program for driving the probe crimping device so as to compensate the positioning precision of the probe crimping device.
As can be seen from the above technical solutions, the present application provides a positioning accuracy compensation system and method for a probe crimping apparatus, the system including: the device comprises a probe crimping device, a positioning precision measuring device and a controller; the controller comprises a measurement control module, a displacement driving module, a data processing module and a positioning precision compensation module; the probe crimping device is erected above the test fixture and is connected with the displacement driving module; the displacement driving module is connected with the measurement control module; the positioning precision measuring device is connected with the measurement control module; the measurement control module is connected with the data processing module; and the data processing module is connected with the positioning precision compensation module.
Compared with the prior art, the system and the method realize automatic control of the probe crimping device and the positioning precision measuring device, simultaneously improve the testing efficiency and the data accuracy, and obtain a more accurate positioning precision compensation curve, so that the positioning precision of the probe crimping device after data compensation is higher, and the use requirement is met.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a block diagram illustrating a positioning accuracy compensation system of a probe crimping apparatus according to an exemplary embodiment of the present application;
fig. 2 is a schematic diagram of a structure and a coordinate system of a probe crimping apparatus according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a positioning accuracy compensation method of a probe crimping apparatus according to an exemplary embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The precision and accuracy of manual detection in the industry of the LCD industry have large subjective fluctuation, the labor amount of enterprises is high in mobility, and the labor cost is improved year by year. Due to the adoption of the Cell lighting detection equipment, the quality of products of LCD manufacturers and the competitiveness of the industry are improved to a great extent, and the loss of human resources is greatly reduced.
The Cell lighting detection equipment utilizes motors of an X axis, a Y axis, a Z axis and a theta axis of the probe crimping device to determine the relative position between the probe needle head and the pixel point of the liquid crystal screen. With the increasing screen resolution, the pixel dot pitch on the circuit board is smaller and smaller (at present, 50 μm), and the requirement of the LCD industry on the positioning accuracy of the probe crimping device of the Cell lighting detection equipment is higher and higher. In the Cell lighting detection device, the linear motor drives the probe crimping device to do linear motion, and the rotating motor drives the probe crimping device to do rotating motion, so that the positioning accuracy directly affects the success rate of the probe crimping lighting, and therefore, the positioning accuracy of the motor needs to be measured and compensated.
Fig. 1 is a block diagram of a positioning accuracy compensation system of a probe crimping apparatus provided in this embodiment, and as can be seen from fig. 1, the system in this embodiment includes: a probe crimping device 100, a positioning accuracy measuring device 200, and a controller 300; the controller 300 comprises a measurement control module 310, a displacement driving module 320, a data processing module 330 and a positioning precision compensation module 340;
the probe crimping device 100 is erected above the test fixture and connected with the displacement driving module 320; the displacement driving module 320 is connected with the measurement control module 310; the positioning precision measuring device 200 is connected with the measurement control module 310; the measurement control module 310 is connected with the data processing module 330; the data processing module 330 is connected to the positioning accuracy compensation module 340;
wherein:
the measurement control module 310 is configured to send a displacement instruction to the displacement driving module 320 according to the position information of the next preset data acquisition point of the LCD to be measured when receiving a start signal or a measurement feedback signal sent by the positioning accuracy measurement apparatus 200; when receiving a displacement feedback signal sent by the displacement driving module 320, sending a measurement instruction to the positioning precision measuring device 200;
the displacement driving module 320 is configured to drive the probe crimping device 100 according to the received displacement instruction, so that the probe needle moves to a corresponding data acquisition point;
the positioning precision measuring device 200 is used for measuring the actual displacement of the probe needle according to the received measuring instruction;
the data processing module 330 is configured to determine a positioning accuracy compensation curve according to the actual displacement and the theoretical displacement from the probe tip to each data acquisition point;
and the positioning accuracy compensation module 340 is configured to perform positioning accuracy compensation on the probe crimping device according to the positioning accuracy compensation curve.
Referring to fig. 2, in the present embodiment, the probe crimping apparatus 100 is provided with 4 motor shafts, which are an X-direction drive shaft 110, a Y-direction drive shaft 120, a Z-direction drive shaft 130, and a θ -direction drive shaft 140. Wherein, the X-direction driving shaft 110 is a linear motor for controlling the probe needle 150 to make a linear motion in the X-axis direction; the Y-direction driving shaft 120 is a servo motor or a linear module, and is used to control the probe head 150 to make a linear motion in the Y-axis direction; the Z-direction driving shaft 130 is a servo motor or an electric sliding table for pressing down the probe head and the probe needle head 150; the theta drive shaft 140 is a DD rotary motor for controlling the deviation of the probe tip 150 in the theta direction.
In this embodiment, since the probe crimping apparatus 100 can realize the precise alignment function, the movement stroke is short. Therefore, in order to comprehensively and objectively reflect the positioning accuracy of the probe crimping apparatus 100, 50 data acquisition points are provided on average in the range of the movement stroke of the drive motor shaft.
In this embodiment, the positioning accuracy measuring apparatus 200 may employ a laser interferometer. When the probe tip 150 stays at the corresponding data acquisition point, the actual displacement of the probe tip 150 is measured by the laser interferometer, and the measurement data is recorded.
In this embodiment, the measurement control module 310, the displacement driving module 320, the data processing module 330 and the positioning accuracy compensation module 340 may be understood as a control program or a data processing program embedded in the controller 300.
When the positioning accuracy compensation system of the probe crimping device provided by this embodiment is used to perform a positioning accuracy test, the system is started first, and at this time, the measurement control module 310 receives a start signal; the measurement control module 310 generates a displacement instruction according to the position information of the first data acquisition point of the plurality of data acquisition points preset on the LCD to be measured, where the displacement instruction includes an X-direction displacement instruction, a Y-direction displacement instruction, and a θ -direction displacement instruction. The position information of the data acquisition point can comprise position coordinates of the data acquisition point. The coordinate system to which the position coordinates belong should be the same coordinate system as the coordinate system set in the controller of the system of the present application. The measurement control module 310 sends the X-direction displacement instruction, the Y-direction displacement instruction and the θ -direction displacement instruction to the displacement driving module 320 at the same time, and after receiving the displacement instruction, the displacement driving module 320 controls the X-direction driving shaft, the Y-direction driving shaft and the θ -direction driving shaft to work according to the displacement instruction, so that the probe needle moves to a corresponding data acquisition point. At this time, the displacement driving module 320 sends a displacement feedback signal to the measurement control module 310.
When the measurement control module 310 receives the displacement feedback signal sent by the displacement driving module 320, it sends a measurement instruction to the positioning precision measuring device 200; after receiving the measurement instruction, the positioning accuracy measuring apparatus 200 measures the actual displacement of the probe tip, and transmits the test data to the data processing module 330. After the measurement is completed, the positioning accuracy measuring device 200 sends a measurement feedback signal to the measurement control module 310.
When the measurement control module 310 receives the measurement feedback signal sent by the positioning accuracy measuring device 200, it indicates that the test for the data acquisition point is completed, and then the above process is repeated to test the next preset data acquisition point of the LCD until all the preset data acquisition points are tested.
After the test is finished, the data processing module 330 acquires theoretical displacement data of each preset data acquisition point, and determines a positioning accuracy compensation curve according to the measured actual displacement data from the probe head to each data acquisition point;
there are many methods for determining the positioning accuracy compensation curve, such as obtaining a linear compensation curve by linear fitting, or obtaining a piecewise compensation curve.
In this embodiment, the data processing module 330 specifically determines the positioning accuracy compensation curve through the following steps:
firstly, obtaining a positioning error value of the probe crimping device to each data acquisition point according to actual displacement and theoretical displacement from a probe needle to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value; in this step, the positioning error value of each data acquisition point is decomposed to obtain the positioning error values of the drive axes in each direction, that is, an X-direction positioning error value of the X-direction drive axis, a Y-direction positioning error value of the Y-direction drive axis, and a θ -direction positioning error value of the θ -direction drive axis.
And secondly, fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to an X-direction error value and an X-direction theoretical displacement, a Y-direction error value and a Y-direction theoretical displacement and a theta-direction error value and a theta-direction theoretical displacement from the probe head to each data acquisition point, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves.
In this embodiment, the positioning accuracy compensation module 340 performs positioning accuracy compensation on the probe crimping apparatus according to the obtained positioning accuracy compensation curve. Since the X-direction driving shaft, the Y-direction driving shaft, and the θ -direction driving shaft of the probe crimping apparatus can directly affect the positioning accuracy, or the positioning error value of each data acquisition point is a comprehensive error generated by the X-direction driving shaft, the Y-direction driving shaft, and the θ -direction driving shaft, it is necessary to separately compensate each driving shaft according to the individual error of the driving shaft in each direction.
Specifically, the positioning accuracy compensation module 340 may compensate the positioning accuracy of the probe crimping apparatus according to the following steps:
firstly, determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft respectively;
and secondly, inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into the displacement driving module so as to compensate the positioning precision of the probe crimping device.
As can be seen from the above embodiments, the positioning accuracy compensation system of the probe crimping apparatus provided in the present application includes: the device comprises a probe crimping device, a positioning precision measuring device and a controller; the controller comprises a measurement control module, a displacement driving module, a data processing module and a positioning precision compensation module; the probe crimping device is erected above the test fixture and is connected with the displacement driving module; the displacement driving module is connected with the measurement control module; the positioning precision measuring device is connected with the measurement control module; the measurement control module is connected with the data processing module; and the data processing module is connected with the positioning precision compensation module.
Compared with the prior art, the system and the method realize automatic control of the probe crimping device and the positioning precision measuring device through the measurement control module, simultaneously improve the testing efficiency and the data accuracy, and obtain a more accurate positioning precision compensation curve, so that the positioning precision of the probe crimping device after data compensation is higher, and the use requirement is met.
According to the positioning accuracy compensation system of the probe crimping device, the application also provides a positioning accuracy compensation method of the probe crimping device, and the method is a method corresponding to the compensation system.
Referring to fig. 3, the method includes the steps of:
step S110, when a starting signal or a measurement feedback signal sent by the positioning precision measuring device is received, the probe crimping device is driven according to the position information of the next preset data acquisition point of the LCD to be measured, so that the probe needle head moves to the corresponding data acquisition point;
step S120, when a displacement feedback signal is received, controlling a positioning precision measuring device to measure the actual displacement of the probe head;
s130, determining a positioning precision compensation curve of the probe crimping device according to the actual displacement and the theoretical displacement from the probe needle to each data acquisition point;
and S140, performing positioning accuracy compensation on the probe crimping device according to the positioning accuracy compensation curve.
Preferably, the probe crimping device comprises an X-direction driving shaft, a Y-direction driving shaft, a Z-direction driving shaft and a theta-direction driving shaft.
Preferably, the driving of the probe crimping device according to the position information of the next preset data acquisition point of the LCD to be tested in step S110 includes:
step S111, generating a displacement instruction according to the position information of the next preset data acquisition point of the LCD to be detected; the displacement instruction comprises an X-direction displacement instruction, a Y-direction displacement instruction and a theta-direction displacement instruction;
and step S112, driving the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft according to the X-direction displacement instruction, the Y-direction displacement instruction and the theta-direction displacement instruction respectively.
Preferably, the determining a positioning accuracy compensation curve according to the actual displacement and the theoretical displacement from the probe tip to each data acquisition point in step S130 includes:
s131, obtaining a positioning error value of the probe crimping device to each data acquisition point according to actual displacement and theoretical displacement from the probe needle to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value;
and S132, fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to the X-direction error value and the X-direction theoretical displacement from the probe needle to each data acquisition point, the Y-direction error value and the Y-direction theoretical displacement and the theta-direction error value and the theta-direction theoretical displacement respectively, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves.
Preferably, the compensating the positioning accuracy of the probe crimping apparatus according to the positioning accuracy compensation curve in step S140 includes:
step S141, determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to the cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft respectively;
and step S142, inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into a program for driving the probe pressing device so as to compensate the positioning precision of the probe pressing device.
Compared with the prior art, the positioning precision compensation system and the positioning precision compensation method for the probe crimping device can achieve automatic control over the probe crimping device and the positioning precision measuring device, meanwhile, the testing efficiency and the data accuracy are improved, and the obtained positioning precision compensation curve is more accurate, so that the positioning precision of the probe crimping device after data compensation is higher, and the use requirement is met.
In specific implementation, the present invention further provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the positioning accuracy compensation method provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, as for the method embodiment, since it is substantially similar to the method embodiment, the description is simple, and the relevant points can be referred to the description in the method embodiment.
Claims (4)
1. A positioning accuracy compensation system of a probe crimping apparatus, the system comprising: the device comprises a probe crimping device, a positioning precision measuring device and a controller; the controller comprises a measurement control module, a displacement driving module, a data processing module and a positioning precision compensation module; the probe crimping device comprises an X-direction driving shaft, a Y-direction driving shaft, a Z-direction driving shaft and a theta-direction driving shaft;
the probe crimping device is erected above the test fixture and is connected with the displacement driving module; the displacement driving module is connected with the measurement control module; the positioning precision measuring device is connected with the measurement control module; the measurement control module is connected with the data processing module; the data processing module is connected with the positioning precision compensation module;
wherein:
the measurement control module is used for sending a displacement instruction to the displacement driving module according to the position information of the next preset data acquisition point of the LCD to be measured when a starting signal or a measurement feedback signal sent by the positioning precision measuring device is received; when a displacement feedback signal sent by a displacement driving module is received, sending a measurement instruction to the positioning precision measurement device;
the displacement driving module is used for driving the probe crimping device according to the received displacement instruction so as to enable the probe needle head to move to a corresponding data acquisition point and send a displacement feedback signal to the measurement control module;
the positioning precision measuring device is used for measuring the actual displacement of the probe needle according to the received measuring instruction and sending a measuring feedback signal to the measuring control module after the measurement is finished;
the data processing module is used for determining a positioning precision compensation curve according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point, wherein the data processing module is specifically used for obtaining a positioning error value of the probe crimping device to each data acquisition point according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value; fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to an X-direction error value, an X-direction theoretical displacement, a Y-direction error value, a Y-direction theoretical displacement, a theta-direction error value and a theta-direction theoretical displacement from a probe needle to each data acquisition point, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves;
the positioning precision compensation module is used for determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft; and inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into the displacement driving module so as to compensate the positioning precision of the probe crimping device.
2. The system of claim 1, wherein the displacement instructions comprise X-direction displacement instructions, Y-direction displacement instructions, and theta-direction displacement instructions.
3. A positioning accuracy compensation method of a probe crimping apparatus, which is applied to the positioning accuracy compensation system according to claim 1, the method comprising:
when a starting signal or a measurement feedback signal sent by a positioning precision measuring device is received, driving a probe crimping device according to the position information of the next preset data acquisition point of the LCD to be measured so as to enable a probe needle head to move to the corresponding data acquisition point; the probe crimping device comprises an X-direction driving shaft, a Y-direction driving shaft, a Z-direction driving shaft and a theta-direction driving shaft;
when a displacement feedback signal is received, controlling a positioning precision measuring device to measure the actual displacement of the probe needle head;
determining a positioning accuracy compensation curve according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point, wherein the determining of the positioning accuracy compensation curve according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point comprises obtaining a positioning error value of the probe crimping device to each data acquisition point according to the actual displacement and the theoretical displacement from the probe needle head to each data acquisition point; the positioning error value comprises an X-direction error value, a Y-direction error value and a theta-direction error value; fitting to obtain cubic spline interpolation compensation curves of an X-direction driving shaft, a Y-direction driving shaft and a theta-direction driving shaft according to an X-direction error value, an X-direction theoretical displacement, a Y-direction error value, a Y-direction theoretical displacement, a theta-direction error value and a theta-direction theoretical displacement from a probe needle to each data acquisition point, and taking the cubic spline interpolation compensation curves as the positioning precision compensation curves;
determining an X-direction compensation value, a Y-direction compensation value and a theta-direction compensation value according to cubic spline interpolation compensation curves of the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft;
and inputting the X-direction compensation value, the Y-direction compensation value and the theta-direction compensation value into a program for driving the probe crimping device so as to compensate the positioning precision of the probe crimping device.
4. The method of claim 3, wherein the driving the probe pressing device according to the position information of the next preset data acquisition point of the LCD to be tested comprises:
generating a displacement instruction according to the position information of the next preset data acquisition point of the LCD to be detected; the displacement instruction comprises an X-direction displacement instruction, a Y-direction displacement instruction and a theta-direction displacement instruction;
and driving the X-direction driving shaft, the Y-direction driving shaft and the theta-direction driving shaft according to the X-direction displacement instruction, the Y-direction displacement instruction and the theta-direction displacement instruction respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942651.0A CN108983460B (en) | 2018-08-17 | 2018-08-17 | Positioning precision compensation system and method of probe crimping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942651.0A CN108983460B (en) | 2018-08-17 | 2018-08-17 | Positioning precision compensation system and method of probe crimping device |
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| Publication Number | Publication Date |
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| CN108983460A CN108983460A (en) | 2018-12-11 |
| CN108983460B true CN108983460B (en) | 2021-08-03 |
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| CN110596437B (en) * | 2019-09-29 | 2024-06-11 | 杭州德创电子股份有限公司 | Automatic crimping device for crimping HPLC communication module of electric energy meter |
| CN111220898A (en) * | 2020-02-17 | 2020-06-02 | 嘉兴学院 | Displacement compensation type flexible device biaxial tensile electrical property detection device and detection method |
| CN114356255B (en) * | 2021-12-31 | 2022-09-06 | 东莞市启思达智能技术有限公司 | Interpolation table application method and system based on printing process |
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| CN107607852A (en) * | 2017-08-07 | 2018-01-19 | 大族激光科技产业集团股份有限公司 | The bearing calibration of the control method and positioning precision of the kinematic axis of flying probe tester |
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| JP4786884B2 (en) * | 2004-06-17 | 2011-10-05 | 株式会社日本マイクロニクス | Alignment method for LCD panel lighting inspection equipment |
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| CN101568844A (en) * | 2006-12-26 | 2009-10-28 | 东京毅力科创株式会社 | Probe inspecting device, displacement correcting method, information processor, information processing method, and program |
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