CN213638385U - PCB detection assembly and PCB production line - Google Patents

Abstract

The utility model discloses a PCB board detection assembly, which comprises an information acquisition device arranged above a production line, a controller electrically connected with the information acquisition device, and FCT detection equipment electrically connected with the controller; after the PCB workpiece moves to the position of the information acquisition device, the acquired information is transmitted to FCT detection equipment through a controller, and whether the PCB workpiece is qualified or not is judged; and when the plate type belonging to the current production is judged to enter the next station, alarming and reminding are carried out when the plate type is unqualified. Still disclose a PCB board production line, including material loading conveyer belt and unloading conveyer belt, still include foretell PCB board determine module between material loading conveyer belt and the unloading conveyer belt. Due to the adoption of the automatic detection system, the automatic cooperation of the information acquisition device, the blocking cylinder, the six-axis industrial robot and the like is utilized, the detection efficiency is effectively improved, and the potential threat of manual work to the damage of the PCB is avoided.

Description

PCB detection assembly and PCB production line

Technical Field

The utility model belongs to the technical field of the PCB board, especially, relate to a PCB board determine module and PCB board production line.

Background

In the production process of the PCB, FCT (ICT) detection is an indispensable link, and is mainly carried out in a mode of manually assisting an FCT (ICT) testing machine at present. The employee is required to perform the following flow actions: 1. taking out the PCB to be tested by the pipeline-2. putting the PCB to be tested into a detection tool (2 pieces for one-time detection) -3. starting detection and waiting for a test result, and separately placing the NG and the OK products. -4. And labeling the OK product, and putting the OK product into the production line again for the next process. Usually, one worker corresponds two detection tools at most, four detection stations, the FCT detection time is about 40S, the manual picking and placing action time is 10S, the manual labeling is usually carried out, 4 sets of FCT and 2 sets of ICT and detection tools with the number being more than the number are required to be configured to meet the current production requirement, and the hidden danger of damage to a circuit board can exist due to non-standard manual operation or long-time repeated labor. The conventional manual operation has the following problems: when the operation of the staff is not skilled or the staff works for a long time, the misjudgment of the detection data exists; the incomplete static elimination causes the breakdown of the PCB and the like. As the PCB is subjected to a soldering link, certain chemical substances are volatilized, air is polluted, the breathing of staff is influenced, and the efficiency cannot keep pace.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB board determine module and PCB board production line to solve the problem of background art.

In order to achieve the above object, the utility model discloses a PCB board determine module and PCB board production line's concrete technical scheme as follows:

a PCB board detection assembly comprises an information acquisition device arranged above a production line, a controller electrically connected with the information acquisition device, and FCT detection equipment electrically connected with the controller;

after the PCB workpiece moves to the position of the information acquisition device, the acquired information is transmitted to FCT detection equipment through a controller, and whether the PCB workpiece is qualified or not is judged; and when the plate type belonging to the current production is judged to enter the next station, alarming and reminding are carried out when the plate type is unqualified.

Further, the information acquisition device is a visual camera.

Further, the parallel support detachable that production line both sides were equipped with installs the portal, and the vision camera is installed on the portal.

Furthermore, a photoelectric switch capable of detecting the in-place of the PCB workpiece is arranged below the door frame, and the photoelectric switch is arranged on the upper end face of the production line.

Furthermore, any one side of the two sides of the support is also provided with a blocking cylinder, the blocking cylinder is connected to the controller through an electromagnetic valve, and the telescopic rod at the head of the blocking cylinder can stretch out and draw back the PCB which can run continuously.

Further, FCT check out test set includes six industrial robot, corresponds the detection station that sets up with six industrial robot's arm, connects the detection positioning sensor on detecting the station, detects the positioning sensor and corresponds the PCB board work piece that sets up on the production line.

Further, the at least linear distribution of detection station has three groups, and every detection station all installs and detects positioning sensor, and every detection station all sets up in the scalable clamp of six industrial robot arm head and gets the position.

Furthermore, six industrial robot arm head is equipped with double-layered anchor clamps, and its every group anchor clamps include two by first splint and the second splint of cylinder drive centre gripping.

The PCB production line comprises a feeding conveying belt and a discharging conveying belt, and the PCB detection assembly is further arranged between the feeding conveying belt and the discharging conveying belt.

Compared with the prior art, the utility model discloses following beneficial effect has:

due to the adoption of the automatic detection system, the automatic cooperation of the information acquisition device, the blocking cylinder, the six-axis industrial robot and the like is utilized, the detection efficiency is effectively improved, and the potential threat of manual work to the damage of the PCB is avoided. The detection cost is saved, paperless information transmission is realized, and the detection efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a PCB production line according to the present invention;

FIG. 2 is an enlarged view of the structure A in the modified position of FIG. 1;

FIG. 3 is a structural diagram of a six-axis industrial robot in the present invention;

fig. 4 is a schematic view of an arm head clamp of the six-axis industrial robot of fig. 3;

FIG. 5 is a schematic diagram of a conventional testing table assembly;

FIG. 6 is a schematic view of a stamping line of a conventional self-carrying feeding and discharging conveyer belt structure.

The reference numbers in the figures illustrate: support 1, direct current motor 2, pivot 3, information acquisition device 4, portal 5, block cylinder 6, photoelectric switch 7, six industrial robot 8, FCT check out test set 9, first splint 81, second splint 82.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-6, which are included to illustrate the invention.

The PCB board determine module is designed, treat that the PCB board flows in the board chain body, and the line body can be according to different PCB models, and the width is freely adjusted to not unidimensional size, can guarantee that the line body can not cause the damage to the PCB board, risk such as drops. The main design improvement of the design is shown in fig. 2, and the structure of the design comprises an information acquisition device 4 arranged above a production line, a controller electrically connected with the information acquisition device 4, and an FCT detection device 9 electrically connected with the controller; after the PCB workpiece moves to the position of the information acquisition device 4, the acquired information is transmitted to the FCT detection equipment 9 through the controller, and whether the PCB workpiece is qualified or not is judged; and when the plate type belonging to the current production is judged to enter the next station, alarming and reminding are carried out when the plate type is unqualified. FCT check out test set 9 includes six industrial robot 8 in this design, corresponds the detection station that sets up, connects the detection position sensor on detecting the station with six industrial robot 8's arm, detects the position sensor and corresponds the PCB board work piece that sets up on the production line.

FCT check out test set 9 adopts ABB1410 six industrial robot, ensures that a six industrial robot can cover FCT check out test set more than 4 (8 stations) simultaneously. Because ICT detection time is short, in order to guarantee the synchronism of a production line, the ABB1410 six-axis industrial robot configured by the ICT automatic detection equipment needs to cover more than 2 (4 stations) ICT detection equipment at the same time, and the configuration can meet the normal one-day yield of the PCB.

The information acquisition device 4 is a visual camera. Parallel support 1 detachable that production line both sides were equipped with installs portal 5, and the vision camera is installed on portal 5. A photoelectric switch 7 capable of detecting the in-place of a PCB workpiece is arranged below the gantry 5, and the photoelectric switch 7 is arranged on the upper end face of the production line. Any one side of the two sides of the support 1 is also provided with a blocking cylinder 6, the blocking cylinder 6 is connected to the controller through an electromagnetic valve, and the telescopic rod at the head of the blocking cylinder 6 can stretch out and draw back a PCB which can be continuously operated. After the former PCB board is in place, the positioned blocking cylinder 6 is lifted, and the former blocking cylinder 6 releases the PCB board to continue to advance. The rear board enters the differential board chain line through the PCB, the PCB is separated through different speeds of the two board chain lines, and meanwhile, the front blocking cylinder 6 extends out to block the forward movement of the rear PCB.

The PCB enters the wire body continuously, firstly, the PCB enters the wire body for buffering, the blocking cylinder 6 extends out, and the PCB behind the PCB is blocked from advancing. When the PCB board through the range of shooing of vision camera 6, the installation industry vision detection system of line body top, the sensor that photoelectric switch 7 connects detects the PCB board and arrives the position, triggers the vision system and shoots the detection, reads current PCB's bar code information and carries out the record and save, sends to the controller, and the controller is forwarded to headquarters server to bind with FCT check out test set 9. And judging whether the PCB is the currently produced version or not according to the read PCB graphic information. And when OK enters the next station, NG alarms are rejected, and meanwhile, the appearance of the PCB can be detected, so that the error prevention function is achieved.

After receiving the PCB preparation completion signal, the controller inquires the idle state from the current previous station to the subsequent station, for example, the previous station is idle, the detection station sensor does not detect the PCB, and the equipment flag bit is displayed as waiting for testing. And controlling to send a code command for grabbing the PCB to be placed to the previous detection station to the six-axis industrial robot. After the six-axis industrial robot receives the instruction, the six-axis industrial robot runs to the clamping jaw cylinder above the PCB and stretches out to clamp the PCB tightly. The clamping jaw of the six-axis industrial robot is designed to be accurately adjustable in a high-precision pressure regulating valve of 0-2mpa, and the clamping jaw does not exceed the range of stress of a PCB (printed circuit board) through stress testing. The clamping jaw inner wall cooperation super gentle rubber pad guarantees that the clamping jaw can not cause the damage to PCB board and inside components and parts. Six industrial robot press from both sides and get behind the PCB board, place at the detection station, and the at least linear distribution of detection station has three groups, and every detection station all installs and detects positioning sensor, and every detection station all sets up in the scalable clamp of 8 arm heads of six industrial robot and gets the position. The PCB after being placed is photographed and detected, whether the current PCB is placed in place or not is checked, and when the PCB is not placed in place or is deviated, an alarm is sent. The six-axis industrial robot taking and placing path is optimized simultaneously, the production efficiency maximization is guaranteed, the head of the arm of the six-axis industrial robot 8 is provided with double fixtures, each fixture comprises two first clamp plates 81 and two second clamp plates 82 which are driven and clamped by cylinders, and the working efficiency is improved through double clamping.

The on-line test mainly comprises the following components: the system comprises 4 sets of FCT detection systems, 2 sets of ICT detection systems, an Ethernet communication system, a serial communication system and a multi-station priority management system. The method is a standard test means for inspecting the defects of production and manufacture and the defects of the components by testing the electrical property and the electrical connection of the on-line components. The method mainly checks the on-line single component and the open and short circuit conditions of each circuit network, and has the characteristics of simple, quick and accurate operation, accurate fault location and the like. The method is a component level test method used for testing each component on the assembled PCB. FCT (functional Test) refers to a Test method in which a simulated operating environment (excitation and load) is provided for a Test target board (UUT: Unit Under Test) to operate in various design states, and parameters of each state are acquired to verify the performance of the UUT. Simply put, the UUT is loaded with the appropriate stimulus and the output response is measured for compliance. Generally, refers specifically to functional testing of the PCBA.

The PCB production line comprises a feeding conveying belt and a discharging conveying belt, and the PCB detection assembly is further arranged between the feeding conveying belt and the discharging conveying belt. The FCT automatic test system of this design comprises 4 sets of detection boards altogether, and two detection stations of every board design can detect 8 PCB boards simultaneously during the peak. And returning the detection station through serial port communication according to the bar code information obtained by visual detection, binding the detection data of the current product, and sending the detection data to a headquarter server through Ethernet communication to realize paperless communication of the product. The upper computer (manipulator) marks the lower computer (detection station) at intervals of a communication period, the detection station determines whether to start testing according to the received data, and simultaneously returns to the corresponding testing states (4 types): the method comprises the following steps of (1) testing, wherein the testing is not carried out, the testing is qualified, and the NG communication mode is tested: 485 communication/RS 232 communication.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (9)

1. The utility model provides a PCB board determine module which characterized in that: the device comprises an information acquisition device (4) arranged above a production line, a controller electrically connected with the information acquisition device (4), and FCT detection equipment (9) electrically connected with the controller;

when the PCB workpiece moves to the position of the information acquisition device (4), the acquired information is transmitted to FCT detection equipment (9) through a controller, and whether the PCB workpiece is qualified or not is judged; and when the plate type belonging to the current production is judged to enter the next station, alarming and reminding are carried out when the plate type is unqualified.

2. The PCB board inspection assembly of claim 1, wherein the information acquisition device (4) is a visual camera.

3. The PCB board detection assembly according to claim 2, wherein the parallel brackets (1) arranged at two sides of the production line are detachably provided with a gantry (5), and the vision camera is arranged on the gantry (5).

4. The PCB detecting assembly according to claim 3, wherein an optoelectronic switch (7) capable of detecting the in-place of the PCB workpiece is arranged below the gantry (5), and the optoelectronic switch (7) is arranged on the upper end face of the production line.

5. The PCB detecting assembly according to claim 4, wherein a blocking cylinder (6) is further arranged on any one of two sides of the bracket (1), the blocking cylinder (6) is connected to the controller through an electromagnetic valve, and the expansion of a head telescopic rod of the blocking cylinder (6) can cut off the PCB which runs continuously.

6. The PCB detecting assembly according to claim 5, wherein the FCT detecting device (9) comprises six industrial robots (8), detecting stations arranged corresponding to the arms of the six industrial robots (8), and detecting and positioning sensors connected to the detecting stations, wherein the detecting and positioning sensors correspond to PCB workpieces arranged on a production line.

7. The PCB board detection assembly according to claim 6, wherein the detection stations are at least linearly distributed in three groups, each detection station is provided with a detection positioning sensor, and each detection station is arranged at a telescopic clamping position of the arm head of the six-axis industrial robot (8).

8. The PCB board detection assembly according to claim 6, characterized in that the six-axis industrial robot (8) arm head is provided with double clamps, each set of which comprises two first clamping plates (81) and second clamping plates (82) driven and clamped by cylinders.

9. A PCB production line, which comprises a feeding conveyer belt and a blanking conveyer belt, and is characterized in that a PCB detection assembly of any one of claims 1 to 8 is further arranged between the feeding conveyer belt and the blanking conveyer belt.

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