Circuit board welding quality detection device based on machine vision

Abstract

The utility model is suitable for the technical field of circuit board detection, and provides a circuit board welding quality detection device based on machine vision, which comprises a base, a detection platform, a detection platform and a control system, the detection assembly comprises a tray slidably arranged on the base, a feeding shaft is rotatably arranged on one side of the tray, two feeding sliding blocks are arranged on the feeding shaft, a cross rod set is arranged between the feeding sliding blocks and the tray, a sliding seat is slidably arranged at the top of the cover box, a driving shaft and a pushing shaft are rotatably arranged on the sliding seat, and a sliding shaft sleeve is slidably arranged on the driving shaft; the sliding shaft sleeve is rotationally arranged on the mounting seat, a first gear, a second gear and a third gear are rotationally arranged on the sliding shaft sleeve, a rotating shaft sleeve is arranged on the mounting seat, a fourth gear is arranged on the rotating shaft sleeve, two pushing sliding blocks are arranged on the pushing shaft, and a fifth gear is arranged on the pushing shaft. Therefore, according to the utility model, not only can the influence of external illumination on the detection result be reduced, but also automatic detection of batch circuit boards can be realized, and good detection effect and detection efficiency are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board detection technical field especially relates to a circuit board welding quality detection device based on machine vision. BACKGROUND

[0002] Printed circuit board is an important electronic component, is the support body of electronic component, is the provider of electronic component circuit connection, and a variety of components need to be welded on the surface of printed circuit board, to ensure yield, the welding quality of the components on the surface of circuit board needs to be detected.

[0003] The prior art detects circuit board through machine vision (i.e. visual detection element), for example, a kind of circuit board surface scratch detection machine with publication No. CN218445214U, it includes body, the top of the body is covered with top cover, the side screw connection in the body is equipped with controller, the side electric connection of the controller is equipped with motor, the side connection of the motor is equipped with rotating shaft, the outside of the rotating shaft is equipped with thread, the outside thread connection of the rotating shaft is equipped with sliding block, the one end of the rotating shaft is movably connected with welding block, the welding block is welded on the other side of body, miniature camera is one centimeter away from circuit board, the one end of air pipe is sleeved with suction head, suction head is aimed at the position of the top of lamp holder, it can effectively check the surface of circuit board, but the visual detection element (i.e. miniature camera) in the above-mentioned device can only reciprocate transversely horizontally, cannot reciprocate vertically horizontally, leading to the need of user to frequently change material supporting tray, leading to the decline of detection efficiency, still have the inconvenience of use.

[0004] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned defects, the utility model aims at providing a kind of circuit board welding quality detection device based on machine vision, it can both reduce the influence of external illumination on detection result, and can realize automatic detection to batch circuit board, guarantee good detection effect and detection efficiency.

[0006] In order to achieve the above object, the utility model provides a kind of circuit board welding quality detection device based on machine vision, comprising: base, its top surface is equipped with cover box, one end of the cover box is equipped with opening;Detection component, it includes tray and feeding shaft, tray is slidably equipped on the base, one side of the tray is rotatably equipped with feeding shaft, two feeding sliders and first circulation groove are equipped on the feeding shaft, cross bar group is equipped between the feeding slider and tray, the top of the cover box is slidably equipped with sliding seat, driving shaft and push shaft are rotatably equipped on the sliding seat, sliding shaft sleeve is slidably equipped on the driving shaft, the sliding shaft sleeve is rotatably equipped on mounting seat, visual detection element is equipped on the mounting seat, first gear, second gear and third gear are rotatably equipped on the sliding shaft sleeve, rotating shaft sleeve is equipped on the mounting seat, fourth gear is equipped on the rotating shaft sleeve, two push sliders that pass through connecting rod rotationally connect cover box are equipped on the push shaft, fifth gear is equipped on the push shaft.

[0007] According to the circuit board welding quality detection device based on machine vision of the utility model, the side wall of the second gear is equipped with positive ratchet, the side wall of the first gear and the third gear is equipped with reverse ratchet, the sliding shaft sleeve is rotatably equipped with first pawl and second pawl.

[0008] According to the circuit board welding quality detection device based on machine vision of the utility model, the cover box is rotatably equipped with transmission shaft, the sixth gear is equipped on the transmission shaft, the transmission shaft and the feeding shaft are equipped with belt.

[0009] According to the circuit board welding quality detection device based on machine vision of the utility model, the top surface of the tray is equipped with positioning groove.

[0010] According to the circuit board welding quality detection device based on machine vision of the utility model, the one end of the driving shaft is connected with driving part, and the driving part is arranged on the sliding seat.

[0011] According to the circuit board welding quality detection device based on machine vision of the utility model, the cover box is equipped with lighting element, and the mounting seat is equipped with lighting enhancement unit.

[0012] The utility model aims at providing a kind of circuit board welding quality detection device based on machine vision, and its beneficial effects are as follows:

[0013] 1, by setting cover box, lighting element and lighting enhancement unit, when machine vision is detected to circuit board, the influence of external lighting condition on detection result is reduced as far as possible, so as to guarantee good detection accuracy.

[0014] 2. The detection assembly is arranged, and batches of circuit boards can be detected in sequence, the movement of the visual detection element and the movement of the tray are both automatic, the labor intensity of workers is reduced, and the detection efficiency is improved.

[0015] In summary, the utility model has the advantages of reducing the influence of external illumination on detection results and realizing automatic detection of batches of circuit boards, thereby ensuring good detection effect and detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the schematic diagram of the utility model;

[0017] Figure 2 is the top view of the utility model;

[0018] Figure 3 is the A part structure enlarged schematic diagram of Figure 2

[0019] In the drawing: 1 - base, 11 - cover box, 2 - detection assembly, 21 - tray, 211 - positioning groove, 22 - feeding shaft, 221 - feeding sliding block, 222 - cross rod group, 23 - sliding seat, 24 - driving shaft, 241 - driving part, 25 - sliding shaft sleeve, 251 - first gear, 252 - second gear, 253 - third gear, 26 - fixed shaft, 261 - mounting seat, 262 - rotating shaft sleeve, 263 - fourth gear, 27 - push shaft, 271 - fifth gear, 272 - push sliding block, 273 - connecting rod, 28 - transmission shaft, 281 - sixth gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0021] Referring to Figures 1-3 The utility model provides a kind of circuit board welding quality detection device based on machine vision, including base 1 and detection assembly 2, base 1 top surface is equipped with cover box 11, cover box 11 one end bottom is equipped with opening, cover box 11 inside is provided with illumination element, cover box 11 can reduce the interference of external light source to detection result when carrying out welding quality detection to circuit board, cover box 11 inside is equipped with detection assembly 2.

[0022] Referring to Figures 1-3 ​The detection assembly 2 comprises a tray 21 and a feeding shaft 22. The tray 21 is slidingly arranged on the top surface of the base 1 and can extend out of the opening of the cover box 11. The feeding shaft 22 is rotatably arranged on the side of the tray 21 away from the opening of the cover box 11. The two ends of the feeding shaft 22 are rotatably connected to the side walls of the cover box 11. Two feeding sliding blocks 221 are arranged on the feeding shaft 22 and slidingly connected to the top surface of the base 1. Two first circulation grooves in opposite directions are arranged on the feeding shaft 22 (the first circulation grooves are arc-shaped grooves surrounding the feeding shaft 22 and connected at the first ends and the second ends). The two feeding sliding blocks 221 are in one-to-one correspondence with the two first circulation grooves (that is, the feeding sliding blocks 221 are each provided with a through hole through which the feeding shaft 22 passes, and the inner side walls of the through holes are each provided with a guide column matched with the first circulation grooves). The cross rod group 222 is arranged between the feeding sliding blocks 221 and the tray 21 (that is, one side of the cross rod group 222 is rotatably connected to the two feeding sliding blocks 221 at the two ends, and the other side of the cross rod group 222 is rotatably connected to two sliding plates, and the sliding plates are slidingly connected to the tray 21).

[0023] Referring to Figures 1-3 The sliding seat 23 is slidingly arranged on the inner top of the cover box 11 and rotatably arranged on the main shaft 24. The driving member 241 is arranged on one end side wall of the sliding seat 23. The other end of the main shaft 24 is rotatably connected to the other end side wall of the sliding seat 23. The sliding shaft sleeve 25 is slidingly and rotatably arranged on the main shaft 24. The sliding shaft sleeve 25 is rotatably arranged on the mounting seat 261 and rotatably connected to the two end side walls of the mounting seat 261. The rotating shaft sleeve 262 is rotatably arranged on the mounting seat 261 and rotatably arranged on the fixed shaft 26. The two ends of the fixed shaft 26 are fixedly connected to the two end side walls of the sliding seat 23. The fixed shaft 26 is a reciprocating screw rod and is threadedly connected to the rotating shaft sleeve 262. The fourth gear 263 is arranged on the rotating shaft sleeve 262. The second gear 252 is rotatably arranged on the sliding shaft sleeve 25. The positive ratchet is arranged on one end side wall of the second gear 252. The positive ratchet, the second gear 252 and the sliding shaft sleeve 25 are concentric. The positive ratchet claw that can rotate in one direction is rotatably arranged on the sliding shaft sleeve 25. The visual detection element is mounted on the bottom surface of the mounting seat 261.

[0024] Referring to Figures 1-3The first gear 251 and the third gear 253 are rotatably connected to the two ends of the sliding sleeve 25, respectively, and a reverse ratchet is arranged on one side wall of each of the first gear 251 and the third gear 253, the reverse ratchet, the first gear 251, the third gear 253 and the sliding sleeve 25 are concentric, and a one-way rotating reverse ratchet pawl is rotatably arranged on the sliding sleeve 25. A push shaft 27 is rotatably arranged above the driving shaft 25, the push shaft 27 is provided with two push blocks 272, the push shaft 27 is provided with two second circulation grooves in opposite directions (the structure of the second circulation grooves is the same as that of the first circulation grooves), the push blocks 272 are matched with the second circulation grooves one by one (the matching mode is the same as that of the feeding block 221 and the first circulation groove), a connecting rod 273 is rotatably arranged between each of the push blocks 272 and the side wall of the cover box 21 away from the outlet (one end of the connecting rod 273 is rotatably connected to the push block 272, and the other end of the connecting rod 273 is rotatably connected to the side wall of the cover box 21), and the push shaft 27 is provided with a fifth gear 271 capable of meshing with the first gear 251. A transmission shaft 28 is rotatably arranged above the feeding shaft 22, both ends of the transmission shaft 28 are rotatably connected to the side walls of the cover box 21, the transmission shaft 28 is provided with a sixth gear 281 capable of meshing with the third gear 253, and a belt is arranged between the transmission shaft 28 and the feeding shaft 22.

[0025] Referring to Figures 1-3 Preferably, the visual detection element can be a video detection probe, which can image and process the circuit board, so as to realize detection of the welding quality of the circuit board. The bottom surface of the mounting seat 261 is additionally provided with an illumination enhancement unit, which can avoid the influence of shadow on the accuracy of the detection result during the movement of the sliding seat 23.

[0026] Referring to Figures 1-3 Preferably, the top surface of the tray 21 is provided with a positioning groove 211, which can not only play a positioning effect, but also avoid the sliding of the circuit board during the reciprocating movement of the tray 21, so as to ensure good detection accuracy.

[0027] Referring to Figures 1-3 Preferably, the driving element 241 is a rotary motor, which can provide sufficient power.

[0028] The utility model discloses in the implementation process: the user places the material placing disc on the tray 21, makes the material placing disc with the positioning groove 211 cooperation, then starts drive piece 241, drive piece 241 direct rotation, this time positive ratchet and pawl cooperation, the ratchet wheel does not cooperate with the reverse pawl, the second gear 252 rotates, and the first gear 251 and the third gear 253 do not rotate, and the first gear 251 drives the fourth gear 263 and the rotation shaft sleeve 262 rotation, to make mounting seat drive visual inspection unit to move, until the first gear 251 and the fifth gear 271 meshing, drive piece 241 reverse, positive ratchet and pawl cooperation, the ratchet wheel and reverse pawl cooperation, the first gear 251 drive fifth gear 271 meshing, push axle 27 rotation, make sliding seat 23 movement to the end away from the cover box 11 opening, then drive piece 251 direct rotation, make mounting seat 261 movement to the third gear 253 and the sixth gear 281 meshing, drive piece 251 reverse, make feeding shaft 22 rotation, to make the tray 21 drive circuit board movement to the cover box 21 inside, then drive piece 251 direct rotation, mounting seat 261 along the fixed shaft 26 direction movement, and the circuit board of same row is detected, and after detecting the circuit board of same row, the first gear 251 and the fourth gear 263 meshing, make mounting seat 261 along the direction perpendicular to the fixed shaft 26 movement a distance, then drive piece 241 continues direct rotation, and visual inspection element is in turn to several circuit boards are detected.

[0029] The utility model provides a kind of circuit board welding quality detection device based on machine vision, and its beneficial effects are as follows:

[0030] 1, by setting cover box, lighting element and illumination enhancement unit, when machine vision is detected to circuit board, the influence of external illumination condition on detection result is as low as possible, to ensure good detection accuracy.

[0031] 2, by setting detection assembly, can be in turn detected to batch circuit board, the movement of visual inspection element and the movement of tray are all automatically, reduce the labor intensity of artificial, improve detection efficiency.

[0032] Summarized above, the beneficial effects of the utility model are: both can reduce the influence of external illumination on detection result, and can realize automatic detection to batch circuit board, ensure good detection effect and detection efficiency.

[0033] Of course, the utility model also can have other various embodiments, without departing from the spirit and the essence of the utility model, the person skilled in the art can make various corresponding changes and deformation according to the utility model, but these corresponding changes and deformation all should belong to the protection scope of the claims attached to the utility model.

Claims

1. A machine vision-based circuit board solder joint quality inspection apparatus, characterized by, The utility model relates to a kind of automatic detection device for packaging box, including: Base, the top surface of which is provided with cover box, one end of the cover box is provided with opening; Detection assembly, including tray and feeding shaft, the tray is slidably arranged on the base, a side of the tray is rotatably provided with feeding shaft, two feeding sliders and first circulation groove are arranged on the feeding shaft, cross bar group is arranged between the feeding slider and the tray, sliding seat is slidably arranged on the top of the cover box, driving shaft and push shaft are rotatably arranged on the sliding seat, sliding shaft sleeve is slidably arranged on the driving shaft, the sliding shaft sleeve is rotatably arranged on mounting seat, visual detection element is arranged on the mounting seat, first gear, second gear and third gear are rotatably arranged on the sliding shaft sleeve, rotating shaft sleeve is arranged on the mounting seat, fourth gear is arranged on the rotating shaft sleeve, two push sliders that are rotatably connected cover box by connecting rod are arranged on the push shaft, fifth gear is arranged on the push shaft.

2. The machine vision-based circuit board solder joint quality inspection apparatus of claim 1, wherein, Positive ratchet is arranged on the side wall of one side of the second gear, reverse ratchet is arranged on the side wall of one side of the first gear and the third gear, first pawl and second pawl are rotatably arranged on the sliding shaft sleeve.

3. The machine vision-based circuit board solder joint quality inspection apparatus of claim 1, wherein, Transmission shaft is rotatably arranged in the cover box, sixth gear is arranged on the transmission shaft, belt is arranged between the transmission shaft and the feeding shaft.

4. The machine vision-based circuit board solder joint quality inspection apparatus of claim 1, wherein, The top surface of the tray is provided with positioning groove.

5. The machine vision-based circuit board solder joint quality inspection apparatus of claim 1, wherein, One end of the driving shaft is connected with driving element, and the driving element is arranged on the sliding seat.

6. The machine vision-based circuit board solder joint quality inspection apparatus of claim 1, wherein, Illumination element is arranged in the cover box, and illumination enhancement unit is arranged on the mounting seat.

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