CN212410471U - Online detection equipment for lead frame stamping parts - Google Patents
Online detection equipment for lead frame stamping parts Download PDFInfo
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- CN212410471U CN212410471U CN202020904022.1U CN202020904022U CN212410471U CN 212410471 U CN212410471 U CN 212410471U CN 202020904022 U CN202020904022 U CN 202020904022U CN 212410471 U CN212410471 U CN 212410471U
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- camera
- infrared detector
- lead frame
- transmission line
- online detection
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Abstract
The utility model discloses an online detection device for lead frame stamping parts, which comprises a camera, a timer unit, an infrared detector and an image analysis module, wherein the infrared detector and the camera are sequentially arranged along the transmission direction of a transmission line; the infrared detector is arranged in a coplanar manner with the plane where the transmission line is located; the camera is positioned right above the transmission line and is used for collecting images of the stamping part according to the received signals of the infrared detector; the timer unit is connected with the camera and the infrared detector and is used for controlling a time node in the image acquisition process; and the image analysis module is used for receiving and analyzing the image information and obtaining a quality inspection result on line.
Description
Technical Field
The utility model belongs to lead frame manufacture equipment field, concretely relates to be used for lead frame stamping workpiece on-line measuring equipment.
Background
The lead frame is used as a chip carrier of an integrated circuit and is mainly produced by adopting a die stamping method and a chemical etching method. The die stamping method produces a lead frame that is more dimensionally stable than the chemical etching method, but is prone to edge-bump defects. Moreover, as known from the prior knowledge, the slight edge bulge defect can cause local charge concentration, and influence the signal transmission and processing capacity of the chip, so that the on-line continuous detection of the punched product is required.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a be used for lead frame stamping workpiece on-line measuring equipment.
Realize above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the device for detecting the stamping part of the lead frame on line comprises a camera, a timer unit, an infrared detector and an image analysis module, wherein the infrared detector and the camera are sequentially arranged along the transmission direction of a transmission line;
the infrared detector is arranged in a coplanar manner with the plane where the transmission line is located;
the camera is positioned right above the transmission line and is used for collecting images of the stamping part according to the received signals of the infrared detector;
the timer unit is connected with the camera and the infrared detector and is used for controlling a time node in the image acquisition process;
and the image analysis module is used for receiving and analyzing the image information and obtaining a quality inspection result on line.
As a further improvement of the present invention, the timing unit includes a first timing relay and a second timing relay;
the first timing relay starts the camera according to the received signal of the infrared detector and according to the set interval time; and the signal receiving end of the second timing relay is connected with the first timing relay and is used for controlling the shooting time of the camera.
As a further improvement, the utility model also comprises a positioning mechanism, the positioning mechanism clamp for setting up the propulsion in four right angles departments, the axis of the punching machine after the positioning of positioning mechanism with the focus point collineation of camera on the transmission line.
As a further improvement of the utility model, the transmission line transmission device further comprises a stepping motor connected with the transmission line.
As a further improvement, the timing unit further comprises a third timing relay, and the start and stop time of the stepping motor is controlled according to the received signal of the infrared detector.
As a further improvement of the utility model, the image analysis module is internally arranged in the PLC control chip.
As the utility model discloses a further improvement links to each other with PLC control chip, presses single product classification with the original image data and the processing result of gathering.
The utility model has the advantages that: the utility model discloses the check out test set that sets up can be quick carry out the analysis to the product through image analysis, and through the control to the camera position to and the control of infrared detector and time-recorder unit ensures to gather best clear image when the product is located the position of camera focus, thereby improves the accuracy of distinguishing.
Drawings
Fig. 1 is a distribution diagram of the installation positions of the equipment along the running direction of the transmission line according to the present invention;
FIG. 2 is a flow chart of the operation of the apparatus of the present invention;
wherein: the system comprises a camera 1, an infrared detector 2, a first timing relay 301, a second timing relay 302, a third timing relay 303, a PLC control chip 4 and a stepping motor 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
The utility model discloses a be used for lead frame stamping workpiece on-line measuring equipment, including camera 1, time-recorder unit, infrared detector 2, and image analysis module, infrared detector 2 with camera 1 sets gradually along the transmission direction of transmission line.
The infrared detector 2 is arranged in a coplanar manner with the plane where the transmission line is located and used for detecting the stamping part, and when the stamping part is detected, a signal is sent to other modules in the device to start an image detection mode.
The camera 1 is positioned right above the transmission line, and controls the opening of the optical door according to the received signal of the infrared detector 2, so as to collect the image of the stamping part. The utility model discloses a be the camera 1 of high accuracy, what adopt is the S (TYP 007) model of lycra, in order to guarantee data analysis' S accuracy, need adjust the focus of camera 1 according to the thickness of stamping workpiece before the test.
And the image analysis module is used for receiving the image information and analyzing the image information. The image analysis module is built in the PLC control chip 4, the PLC control chip 4 adopts a Pentium series chip, the image analysis module is a controllable program edited in the PLC control chip 4, and data of the image is processed in the following way:
first, edge line features and height information of the stamping are extracted based on the captured image. The edge line features comprise frame lines of the outermost side edges and frame lines of the internal graph; the height information is a part protruding relative to the plane height of the stamping part. Converting the extracted characteristic information into a digital signal through an A/D conversion chip; and reconstructing the size information of the detection piece according to the extracted digital signal, comparing the size information with a design value, and judging whether the difference value of the size information and the design value is within an allowable error range.
The timer unit is connected with the camera 1 and the infrared detector 2 and is used for controlling a time node in the image acquisition process; including a first timing relay and a second timing relay. The first timing relay starts the camera 1 according to the received signal of the infrared detector 2 and according to a set interval time, wherein the interval time corresponds to the sum of the interval time of the camera 1 and the infrared detector 2 and the running time of the positioning mechanism. And the signal receiving end of the second timing relay is connected with the first timing relay 301 and is used for controlling the shooting time of the camera 1 and controlling the closing of the camera 1.
The system also comprises a data storage module which is connected with the PLC control chip 4 and classifies the acquired original image data and the processing result according to the single product. The data storage module adopts a hard disk with the capacity not lower than 500G.
The positioning mechanism is a propelling clamp which is arranged at four right angles and can move in a front-back telescopic mode, and the central axis of the punching machine positioned by the positioning mechanism is collinear with the focus point of the camera 1 on the transmission line.
The timing unit also comprises a stepping motor 5 connected with the transmission line, and a third timing relay which controls the start-stop time of the stepping motor 5 according to the received signal of the infrared detector 2 and drives the stepping motor 5 to run periodically. And the running interval time of the third timing relay is consistent with the interval time of manufacturing the single-sheet stamping part.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a be used for lead frame stamping workpiece on-line measuring equipment which characterized in that: the system comprises a camera, a timer unit, an infrared detector and an image analysis module, wherein the infrared detector and the camera are sequentially arranged along the transmission direction of a transmission line;
the infrared detector is arranged in a coplanar manner with the plane where the transmission line is located;
the camera is positioned right above the transmission line and is used for collecting images of the stamping part according to the received signals of the infrared detector;
the timer unit is connected with the camera and the infrared detector and is used for controlling a time node in the image acquisition process;
and the image analysis module is used for receiving and analyzing the image information and obtaining a quality inspection result on line.
2. The lead frame stamping online detection device according to claim 1, characterized in that: the timer unit comprises a first timing relay and a second timing relay;
the first timing relay starts the camera according to the received signal of the infrared detector and according to the set interval time; and the signal receiving end of the second timing relay is connected with the first timing relay and is used for controlling the shooting time of the camera.
3. The lead frame stamping online detection device according to claim 1, characterized in that: the positioning mechanism is a pushing clamp arranged at four right angles, and the central axis of the punching machine positioned by the positioning mechanism is collinear with the focus point of the camera on the transmission line.
4. The lead frame stamping online detection device according to claim 1, characterized in that: and the stepping motor is connected with the transmission line.
5. The lead frame stamping online detection device according to claim 4, characterized in that: the timer unit also comprises a third timing relay which controls the start-stop time of the stepping motor according to the received signal of the infrared detector.
6. The lead frame stamping online detection device according to claim 1, characterized in that: the image analysis module is built in the PLC control chip.
7. The lead frame stamping online detection device according to claim 6, characterized in that: the system also comprises a data storage module which is connected with the PLC control chip and classifies the acquired original image data and the processing result according to the single product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904022.1U CN212410471U (en) | 2020-05-26 | 2020-05-26 | Online detection equipment for lead frame stamping parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904022.1U CN212410471U (en) | 2020-05-26 | 2020-05-26 | Online detection equipment for lead frame stamping parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410471U true CN212410471U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020904022.1U Active CN212410471U (en) | 2020-05-26 | 2020-05-26 | Online detection equipment for lead frame stamping parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410471U (en) |
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2020
- 2020-05-26 CN CN202020904022.1U patent/CN212410471U/en active Active
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