A kind of detection device and method for SMT patch

Abstract

The invention relates to the field of detection technology, and discloses a detection device and method for SMT patches, which solves the problem that when the back side of the SMT patch needs to be detected, it is necessary to manually turn it over. The device comprises a frame, a first moving belt and a second moving belt are arranged above the frame, and a driving mechanism for driving the first moving belt and the second moving belt to move respectively is installed on the frame; a first fixing frame is fixedly installed on the frame, a first detection head located above the first moving belt is fixedly installed on the first fixing frame, and a second detection head located between the first moving belt and the second moving belt is fixedly installed on the frame; the top and bottom of the SMT patch can be detected without the need for staff to turn over the SMT patch, thereby improving the detection efficiency and facilitating practical use.

Description

Technical Field

[0001] The present invention belongs to the field of detection technology, and specifically relates to a detection device and method for SMT patches. Background Art

[0002] SMT is surface mount technology. SMT patch refers to the abbreviation of a series of process flows based on printed circuit boards. At present, SMT patches need to be quality inspected during the SMT patch processing. SMT patch defect detection includes automatic detection and manual visual inspection. Manual visual inspection moves the magnifying glass to the top of the SMT patch and uses the magnifying glass to magnify the SMT patch, so that the inspector can visually inspect the appearance and process defects on the SMT patch.

[0003] However, it is worth considering that the accuracy of the results obtained by this manual visual inspection method is low. Automatic inspection requires manual placement of SMT patches at the inspection station and then inspection through the inspection head. When the back of the SMT patch needs to be inspected, it needs to be manually turned over, which has certain limitations.

[0004] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a detection device and method for SMT patches, which effectively solves the problem that when the back side of the SMT patch needs to be detected in the above background technology, it is necessary to manually turn it over.

[0006] To achieve the above object, the present invention provides the following technical solution: a detection device for SMT patches, comprising a frame, a first moving belt and a second moving belt are arranged above the frame, and a driving mechanism for driving the first moving belt and the second moving belt to move respectively is installed on the frame;

[0007] The frame is fixedly installed with a first fixed frame, the first fixed frame is fixedly installed with a first detection head located above the first moving belt, the frame is fixedly installed with a second detection head located between the first moving belt and the second moving belt, the first moving belt is provided with a clamping control component for clamping the SMT patch, and the frame is installed with a synchronous transfer structure for moving the SMT patch from the first moving belt to the second moving belt.

[0008] Preferably, the clamping control assembly includes a plurality of first support plates fixedly mounted on the first moving belt, clamping plates are provided on both sides of the first support plate, fixed plates are provided on the sides away from each other of the two clamping plates, the fixed plate and the first moving belt are fixedly connected, a movable plate is provided on the side of the fixed plate away from the clamping plate, the movable plate and the clamping plate are fixedly connected by two connecting columns, and the connecting columns pass through the fixed plate, the movable plate and the fixed plate are connected by a tension spring, the frame is equipped with a pushing unit cooperating with the movable plate, and the frame is equipped with a loading mechanism located above the first moving belt.

[0009] Preferably, the pushing unit includes two groups of pushing members arranged above the first moving belt, the top of the movable plate is fixedly connected to a sliding plate, each group of pushing members includes two first support plates, both ends of the first support plates are provided with inclined surfaces adapted to the sliding plates, and the first support plates and the frame are fixedly connected by two first connecting frames.

[0010] Preferably, the loading mechanism includes a swinging plate arranged above the first moving belt, two positioning plates are provided on the side of the swinging plate away from the first detection head, the positioning plate is fixedly connected to the corresponding first connecting frame, the spacing between the two positioning plates is greater than the length of the first support plate, and a second support plate for supporting the SMT patch is fixedly connected to the side of the positioning plate facing the swinging plate, and a side plate for limiting the position of the SMT patch is fixedly connected to the top of the second support plate, and a magnetic oscillator adapted to the swinging plate is installed on the frame.

[0011] Preferably, the magnetic oscillator includes a second connecting frame fixedly mounted on the frame, a control box is fixedly mounted on the second connecting frame, a first rotating shaft is rotatably connected inside the control box, an avoidance hole matched with the swing plate is opened on the bottom inner wall of the control box, the swing plate passes through the avoidance hole, and the top of the swing plate is fixedly connected to the first rotating shaft, a first iron plate is fixedly connected to the side of the swing plate away from the first detection head, a first magnet block is contacted with the side of the first iron plate away from the swing plate, and the first magnet block is fixedly connected to the control box, and the control box is equipped with an engaging rotating part matched with the first rotating shaft.

[0012] Preferably, the meshing rotating part includes two gears fixedly mounted on the outside of the first rotating shaft, a first connecting plate is provided in the control box, both ends of the first connecting plate are fixedly connected with tooth plates, and the tooth plates are meshed with corresponding gears, two first guide columns pass through the first connecting plate, one end of the first guide column is fixedly connected to the inner wall of the control box, the other end of the first guide column is fixedly connected to a stop plate, and the side of the first connecting plate away from the stop plate is connected to the inner wall of the control box through a first compression spring.

[0013] Preferably, the synchronous transfer structure includes a movable seat arranged above the first moving belt, the frame is equipped with a damping reciprocating mechanism compatible with the movable seat, second fixed frames are respectively provided on both sides of the movable seat, the second fixed frame is fixedly connected to the frame, the two second fixed frames are fixedly connected by at least one guide plate, and the guide plate passes through the movable seat, a second iron plate compatible with the first support plate is provided on the side of the movable seat facing the first detection head, two second guide columns pass through the second iron plate, one end of the second guide column is fixedly connected to the movable seat through a connecting block, the other end of the second guide column is fixedly connected to the first stop plate, and the connecting block and the second iron plate are connected through a second compression spring, two second stop plates are provided between the second iron plate and the connecting block, the second stop plate and the corresponding first stop plate are fixedly connected through the second connecting plate, the second moving belt is fixedly installed with a plurality of second support plates, the movable seat is fixedly installed with a support frame compatible with the second support plate, a second magnet block is contacted with the side of the second iron plate away from the movable seat, and the second magnet block is fixedly connected to a corresponding second fixed frame, and the movable seat is equipped with a lifting adsorption mechanism for fixing the SMT patch.

[0014] Preferably, the lifting adsorption mechanism includes a hydraulic telescopic rod fixedly mounted on a movable seat, the telescopic end of the hydraulic telescopic rod is fixedly connected to an air pump located below the movable seat, the input end of the air pump is fixedly connected to an air suction box, a plurality of air suction pipes are fixedly connected to the air suction box, and the end of the air suction pipe away from the air suction box is fixedly connected to a suction cup.

[0015] Preferably, the damping reciprocating mechanism includes a mounting frame fixedly mounted on the frame, a servo motor fixedly mounted on the mounting frame, a first damping disk fixedly connected to the output end of the servo motor, a second rotating shaft rotatably mounted on the mounting frame, one end of the second rotating shaft fixedly connected to a second damping disk in contact with the first damping disk, the other end of the second rotating shaft fixedly connected to a third connecting plate, the end of the third connecting plate away from the second rotating shaft fixedly connected to a fixing column, an external sliding sleeve of the fixing column is provided with a rectangular ring, and the movable seat and the rectangular ring are fixedly connected.

[0016] The present invention also provides a method for detecting SMT patches, using the detection device for SMT patches as described above, comprising the following steps:

[0017] Step 1: The first moving belt and the second moving belt are driven by the driving mechanism to move, and the staff places the SMT patch to be inspected on the first moving belt, and clamps and fixes the SMT patch through the clamping control component;

[0018] Step 2: When the first moving belt drives the SMT patch to move to the inspection station through the clamping control component, the top of the SMT patch is inspected by the first inspection head;

[0019] Step 3: After the top detection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt by the synchronous transfer structure;

[0020] Step 4: During the transfer process, the bottom of the SMT patch is inspected by the second detection head. When the SMT patch moves to the second moving belt, the driving mechanism drives the second moving belt to move, so that the second moving belt drives the SMT patch to move to the preset position for unloading.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The first moving belt and the second moving belt are driven to move by the driving mechanism, and the staff places the SMT patch to be inspected on the first moving belt, and clamps and fixes the SMT patch through the clamping control component. When the first moving belt drives the SMT patch to move to the inspection station through the clamping control component, the top of the SMT patch is inspected by the first inspection head. When the top inspection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt through the synchronous transfer structure. During the transfer process, the bottom of the SMT patch is inspected by the second inspection head. When the SMT patch moves to the second moving belt, the driving mechanism drives the second moving belt to move, so that the second moving belt drives the SMT patch to move to the preset position for unloading. The staff does not need to turn over the SMT patch, and the top and bottom of the SMT patch can be inspected, which improves the inspection efficiency and is convenient for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] In the attached picture:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure inside the control box of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the splint of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the first support plate of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the movable seat of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of a part of the second iron plate of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the lifting type adsorption mechanism of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the assembly position of the first damping disc and the second damping disc of the present invention.

[0033] In the figure: 1, frame; 2, first moving belt; 3, second moving belt; 4, first fixed frame; 5, first detection head; 6, second detection head; 7, clamping plate; 8, first supporting plate; 9, fixed plate; 10, movable plate; 11, connecting column; 12, tension spring; 13, sliding plate; 14, first supporting plate; 15, first connecting frame; 16, swing plate; 17, positioning plate; 18, second supporting plate; 19, side plate; 20, control box; 21, second connecting frame; 22, first rotating shaft; 23, avoidance hole; 24, first iron plate; 25, first magnet block; 26, gear; 27, tooth plate; 28, first connecting plate; 29, first guide column; 30, The first compression spring; 31. the stop plate; 32. the movable seat; 33. the second fixed frame; 34. the guide plate; 35. the second iron plate; 36. the second guide column; 37. the first stop plate; 38. the connecting block; 39. the second stop plate; 40. the second connecting plate; 41. the second compression spring; 42. the hydraulic telescopic rod; 43. the air pump; 44. the vacuum box; 45. the vacuum pipe; 46. the suction cup; 47. the second supporting plate; 48. the supporting frame; 49. the mounting frame; 50. the servo motor; 51. the first damping plate; 52. the second rotating shaft; 53. the second damping plate; 54. the third connecting plate; 55. the fixing column; 56. the rectangular ring; 57. the second magnet block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Embodiment 1, by Figure 1 The present invention comprises a frame 1, a first moving belt 2 and a second moving belt 3 are arranged above the frame 1, and a driving mechanism for driving the first moving belt 2 and the second moving belt 3 to move is installed on the frame 1;

[0036] The rack 1 is fixedly mounted with a first fixed frame 4, the first fixed frame 4 is fixedly mounted with a first detection head 5 located above the first moving belt 2, the rack 1 is fixedly mounted with a second detection head 6 located between the first moving belt 2 and the second moving belt 3, the first moving belt 2 is provided with a clamping control component for clamping the SMT patch, the rack 1 is installed with a synchronous transfer structure for moving the SMT patch from the first moving belt 2 to the second moving belt 3; the first moving belt 2 and the second moving belt 3 are driven to move by a driving mechanism, the staff places the SMT patch to be detected on the first moving belt 2, the SMT patch is clamped and fixed by the clamping control component, and the first moving belt 2 drives the SMT patch to move by the clamping control component When it moves to the inspection station, the top of the SMT patch is inspected by the first inspection head 5. After the top inspection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt 3 through the synchronous transfer structure. During the transfer process, the bottom of the SMT patch is inspected by the second inspection head 6. When the SMT patch moves to the second moving belt 3, the driving mechanism drives the second moving belt 3 to move, so that the second moving belt 3 drives the SMT patch to move to the preset position for unloading. The staff does not need to turn over the SMT patch, and the top and bottom of the SMT patch can be inspected, which improves the inspection efficiency and is convenient for practical use.

[0037] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 and Figure 4It is given that the clamping control assembly includes a plurality of first support plates 8 fixedly mounted on the first moving belt 2, both sides of the first support plate 8 are provided with clamping plates 7, the sides of the two clamping plates 7 away from each other are respectively provided with fixed plates 9, the fixed plate 9 and the first moving belt 2 are fixedly connected, the side of the fixed plate 9 away from the clamping plate 7 is provided with a movable plate 10, the movable plate 10 and the clamping plate 7 are fixedly connected by two connecting columns 11, and the connecting column 11 passes through the fixed plate 9, the movable plate 10 and the fixed plate 9 are connected by a tension spring 12, the frame 1 is equipped with a pushing unit matched with the movable plate 10, the frame 1 is equipped with a feeding mechanism located above the first moving belt 2, and the pushing unit includes two groups of pushing members arranged above the first moving belt 2 The top of the movable plate 10 is fixedly connected with a sliding plate 13, and each group of pushers includes two first support plates 14. Both ends of the first support plates 14 are provided with inclined surfaces adapted to the sliding plates 13. The first support plates 14 and the frame 1 are fixedly connected through two first connecting frames 15. The feeding mechanism includes a swing plate 16 arranged above the first moving belt 2. Two positioning plates 17 are provided on the side of the swing plate 16 away from the first detection head 5. The positioning plates 17 are fixedly connected to the corresponding first connecting frames 15. The spacing between the two positioning plates 17 is greater than the length of the first support plate 8. The positioning plate 17 is fixedly connected to the side of the swing plate 16 facing the second support plate 18 for supporting the SMT patch. The top of the second support plate 18 A side plate 19 for limiting the position of the SMT patch is fixedly connected, and a magnetic oscillator adapted to the swing plate 16 is installed on the frame 1. The magnetic oscillator includes a second connecting frame 21 fixedly installed on the frame 1, and a control box 20 is fixedly installed on the second connecting frame 21. A first rotating shaft 22 is rotatably connected in the control box 20. An avoidance hole 23 adapted to the swing plate 16 is opened on the bottom inner wall of the control box 20. The swing plate 16 passes through the avoidance hole 23, and the top of the swing plate 16 is fixedly connected to the first rotating shaft 22. A first iron plate 24 is fixedly connected to the side of the swing plate 16 away from the first detection head 5, and a first magnet block 25 is contacted with the side of the first iron plate 24 away from the swing plate 16, and the first magnet block 25 is provided. The block 25 is fixedly connected to the control box 20. The control box 20 is equipped with a meshing self-rotating member adapted to the first rotating shaft 22. The meshing self-rotating member includes two gears 26 fixedly sleeved on the outside of the first rotating shaft 22. A first connecting plate 28 is provided in the control box 20. Both ends of the first connecting plate 28 are fixedly connected with toothed plates 27, and the toothed plates 27 are meshed with the corresponding gears 26. Two first guide columns 29 are passed through the first connecting plate 28. One end of the first guide column 29 is fixedly connected to the inner wall of the control box 20. The other end of the first guide column 29 is fixedly connected to a stop plate 31. The side of the first connecting plate 28 away from the stop plate 31 is connected to the inner wall of the control box 20 through a first compression spring 30.

[0038] The staff places the SMT patch to be tested on the top of the two second support plates 18, and limits the two sides of the SMT patch through the two side plates 19. The staff drives the swing plate 16 to rotate, so that the swing plate 16 drives the gear 26 to rotate through the first rotating shaft 22, and the gear 26 drives the toothed plate 27 and the first connecting plate 28 to slide relative to the first guide column 29. The first compression spring 30 is in a compressed state. When the swing plate 16 contacts the SMT patch, the first iron plate 24 and the first magnet block 25 are magnetically attracted to each other. The magnetic force between the first iron plate 24 and the first magnet block 25 is greater than the pressure generated by the first compression spring 30, so that the swing plate 16 is fixed relative to the control box 20. At this time, the swing plate 16 and the positioning plate 17 are respectively in contact with the SMT patch. The other two sides of the sheet are abutted to complete the positioning and loading of the SMT patch. When the driving mechanism drives the first moving belt 2 to move so that the first support plate 8 and the clamping plate 7 move synchronously, the end of the sliding plate 13 contacts the inclined surface on the first support plate 14. As the first moving belt 2 continues to move, the sliding plate 13 slides on the inclined surface of the first support plate 14. The sliding plate 13 drives the clamping plate 7 to move relative to the fixed plate 9 and the first moving belt 2 through the movable plate 10 and the connecting column 11, increasing the distance between the two adjacent clamping plates 7. The tension spring 12 is in a stretched state. Finally, the corresponding two clamping plates 7 pass from the side away from the two side plates 19, and the first support plate 8 passes between the two positioning plates 17. The first support plate 8 contacts the SMT patch. And with the continuous movement of the first moving belt 2 and the first supporting plate 8, the first supporting plate 8 pushes the SMT patch to move synchronously, and the SMT patch pushes the swing plate 16 and the first rotating shaft 22 to rotate relative to the control box 20, and the inclination angles of the swing plate 16 and the first iron plate 24 change, and the first iron plate 24 is no longer magnetically attracted to the first magnet block 25. At this time, the first compression spring 30 is in a compressed state, and the first compression spring 30 pushes the first connecting plate 28 and the toothed plate 27 to move, and the toothed plate 27 drives the first rotating shaft 22 and the swing plate 16 to rotate through the gear 26, so that the bottom end of the swing plate 16 no longer interferes with the movement of the SMT patch and the first supporting plate 8, and the first supporting plate 8 pushes the SMT patch to slide from the two second supporting plates 18 to the first moving belt 2. When the SMT patch slides onto the first moving belt 2, with the continuous movement of the first moving belt 2, the end of the sliding plate 13 slides to the inclined surface of the other end of the first support plate 14, and the tension spring 12 pulls the movable plate 10 and the sliding plate 13 to move, so that the end of the sliding plate 13 slides on the inclined surface of the first support plate 14, and the movable plate 10 drives the clamping plate 7 to move toward the SMT patch through the connecting column 11. When the two clamping plates 7 clamp the SMT patch, with the continuous movement of the first moving belt 2 and the first support plate 8, the end of the sliding plate 13 no longer contacts the inclined surface of the first support plate 14, so that the SMT patch can be fixed relative to the first moving belt 2. When the top detection of the SMT patch is completed and the SMT patch moves to the transfer station, similarly,The end of the sliding plate 13 moves again to the inclined surface of another first support plate 14. As the first moving belt 2 and the first supporting plate 8 continue to move, the corresponding two clamping plates 7 no longer clamp the SMT patch, and the SMT patch can be transferred to the second moving belt 3 through the synchronous transfer structure.

[0039] Embodiment 3, based on embodiment 1, Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The synchronous transfer structure includes a movable seat 32 arranged above the first moving belt 2, a frame 1 is equipped with a damping reciprocating mechanism adapted to the movable seat 32, second fixed frames 33 are respectively arranged on both sides of the movable seat 32, the second fixed frames 33 are fixedly connected to the frame 1, the two second fixed frames 33 are fixedly connected by at least one guide plate 34, and the guide plate 34 passes through the movable seat 32, and a second iron plate 35 adapted to the first support plate 8 is arranged on the side of the movable seat 32 facing the first detection head 5, and two second guide columns 36 are passed through the second iron plate 35, and one of the second guide columns 36 The second guide column 36 is fixedly connected to the movable seat 32 through a connecting block 38, the other end of the second guide column 36 is fixedly connected to a first stop plate 37, and the connecting block 38 is connected to the second iron plate 35 through a second compression spring 41, and two second stop plates 39 are provided between the second iron plate 35 and the connecting block 38, and the second stop plates 39 and the corresponding first stop plates 37 are fixedly connected through a second connecting plate 40, and a plurality of second support plates 47 are fixedly installed on the second moving belt 3, and a support frame 48 adapted to the second support plate 47 is fixedly installed on the movable seat 32, and the second iron plate 35 contacts the side away from the movable seat 32 A second magnet block 57 is provided, and the second magnet block 57 is fixedly connected to a corresponding second fixing frame 33. The movable seat 32 is equipped with a lifting adsorption mechanism for fixing the SMT patch. The lifting adsorption mechanism includes a hydraulic telescopic rod 42 fixedly installed on the movable seat 32. The telescopic end of the hydraulic telescopic rod 42 is fixedly connected to an air pump 43 located below the movable seat 32. The input end of the air pump 43 is fixedly connected to an exhaust box 44. The exhaust box 44 is fixedly connected to a plurality of exhaust pipes 45. The end of the exhaust pipe 45 away from the exhaust box 44 is fixedly connected to a suction cup 46. The damping reciprocating mechanism includes A mounting frame 49 fixedly mounted on the frame 1, a servo motor 50 is fixedly mounted on the mounting frame 49, a first damping disc 51 is fixedly connected to the output end of the servo motor 50, a second rotating shaft 52 is rotatably mounted on the mounting frame 49, one end of the second rotating shaft 52 is fixedly connected to a second damping disc 53 in contact with the first damping disc 51, the other end of the second rotating shaft 52 is fixedly connected to a third connecting plate 54, one end of the third connecting plate 54 away from the second rotating shaft 52 is fixedly connected to a fixing column 55, an outer sliding sleeve of the fixing column 55 is provided with a rectangular ring 56, and the movable seat 32 is fixedly connected to the rectangular ring 56;

[0040] The first damping disk 51 is driven to rotate by the servo motor 50, and the first damping disk 51 drives the second damping disk 53 and the second rotating shaft 52 to rotate synchronously through the friction force. The second rotating shaft 52 drives the fixed column 55 to slide in the rectangular ring 56 through the third connecting plate 54, and the fixed column 55 pushes the rectangular ring 56 and the movable seat 32 to slide relative to the guide plate 34 and the second fixed frame 33. When the movable seat 32 moves to the preset position, the second iron plate 35 and the second magnet block 57 are in contact. At this time, the second iron plate 35 and the first stop plate 37 are tightly attached, and the magnetic force generated between the second magnet block 57 and the second iron plate 35 is greater than the friction force between the first damping disk 51 and the second damping disk 53, resulting in the first damping disk 51 being unable to drive the second damping disk 53 to rotate through the friction force. The movable seat 32 cannot pull the second iron plate 35 and the second magnet block 57 apart through the connecting block 38, the second guide column 36 and the first stop plate 37, so that the fixed column 55 cannot push the rectangular ring 56 to move toward the second movable belt 3. When the top detection of the SMT patch is completed and the SMT patch moves to the transfer station, the corresponding first support plate 8 and the second iron plate 35 are in contact. As the first movable belt 2 and the first support plate 8 continue to move, the first support plate 8 pushes the second iron plate 35 to separate from the second magnet block 57. At this time, the first damping disk 51 drives the second damping disk 53 to rotate synchronously through the friction force, so that the movable seat 32 drives the first stop plate 37 to move through the connecting block 38 and the second guide column 36. As the first movable belt 2 and the first support plate 8 continue to move, the first damping disk 51 drives the second damping disk 53 to rotate synchronously. A support plate 8 is continuously moved, and the movement speed of the first support plate 8 and the second iron plate 35 is greater than the movement speed of the movable seat 32. When the first support plate 8 pushes the second iron plate 35 to contact the second stop plate 39, as the first support plate 8 continues to move, the first support plate 8 pushes the second iron plate 35, the second stop plate 39, the first stop plate 37, the second guide column 36, the connecting block 38 and the movable seat 32 to move synchronously, so that the suction cup 46 can move synchronously with the first support plate 8 and the SMT patch, and the clamping control component releases the fixation of the SMT patch, and drives the air pump 43, the vacuum box 44, the vacuum pipe 45 and the suction cup 46 to move downward through the hydraulic telescopic rod 42. When the suction cup 46 contacts the SMT patch, air is extracted through the air pump 43. So that the suction cup 46 can absorb the SMT patch, and then the air pump 43 is driven to move upward through the hydraulic telescopic rod 42, so that the SMT patch is no longer in contact with the first moving belt 2. As the first moving belt 2 continues to move, when the first support plate 8 is no longer in contact with the second iron plate 35, the first support plate 8 no longer pushes the second iron plate 35 to move synchronously. At this time, the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, so that the movable seat 32 drives the SMT patch to move above the second moving belt 3, and the second compression spring 41 pushes the second iron plate 35 to move relative to the second guide column 36, so that the second iron plate 35 is in contact with the first stop plate 37 again, and the second iron plate 35 is reset to the initial position relative to the first stop plate 37 and the second guide column 36.The driving mechanism drives the second moving belt 3 and the second support plate 47 to move. When the movable seat 32 drives the support frame 48 to contact the second support plate 47, the moving speed of the second support plate 47 is less than the moving speed of the movable seat 32 and the support frame 48. The second support plate 47 reduces the moving speed of the movable seat 32 and the support frame 48, so that the movable seat 32 and the SMT patch move synchronously with the second moving belt 3. While the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, the first damping disk 51 slides relative to the second damping disk 53. At this time, the hydraulic telescopic rod 42 drives the air pump 43 to move downward, so that the SMT patch contacts the second moving belt 3, and the air pump 43 is turned off. , so that the suction cup 46 no longer absorbs the SMT patch, and then the hydraulic telescopic rod 42 drives the air pump 43 to reset to the initial height, so that the SMT patch can be placed on the second moving belt 3. When the rectangular ring 56 moves to the preset position, the second support plate 47 is no longer in contact with the support frame 48, and the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, and the fixed column 55 pushes the rectangular ring 56 to move in the opposite direction, so that the movable seat 32 and the second iron plate 35 move toward the second magnet block 57 again. Finally, the second iron plate 35 and the second magnet block 57 are magnetically attracted again, and the movable seat 32 stops moving in the horizontal direction, and the movable seat 32 and the second iron plate 35 are reset to the initial position.

[0041] A detection method for SMT patches of this embodiment uses the detection device for SMT patches as described above, and includes the following steps:

[0042] Step 1: The first moving belt 2 and the second moving belt 3 are driven by the driving mechanism to move, and the staff places the SMT patch to be inspected on the first moving belt 2, and clamps and fixes the SMT patch through the clamping control component;

[0043] Step 2: When the first moving belt 2 drives the SMT patch to move to the inspection station through the clamping control component, the top of the SMT patch is inspected by the first inspection head 5;

[0044] Step 3: After the top detection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt 3 by the synchronous transfer structure;

[0045] Step 4: During the transfer process, the bottom of the SMT patch is inspected by the second detection head 6. When the SMT patch moves onto the second moving belt 3, the driving mechanism drives the second moving belt 3 to move, so that the second moving belt 3 drives the SMT patch to move to the preset position for unloading.

[0046] Working principle: During operation, the first moving belt 2 and the second moving belt 3 are driven to move by the driving mechanism, and the staff places the SMT patch to be inspected on the first moving belt 2, and the SMT patch is clamped and fixed by the clamping control component. When the first moving belt 2 drives the SMT patch to move to the inspection station through the clamping control component, the top of the SMT patch is inspected by the first inspection head 5. When the top inspection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt 3 through the synchronous transfer structure. During the transfer process, the bottom of the SMT patch is inspected by the second inspection head 6. When the SMT patch moves to the second moving belt 3, the driving mechanism drives the second moving belt 3 to move, so that the second moving belt 3 drives the SMT patch to move to the preset position for unloading. The staff does not need to turn over the SMT patch, and the top and bottom of the SMT patch can be inspected, which improves the inspection efficiency and is convenient for practical use.

[0047] The staff places the SMT patch to be tested on the top of the two second support plates 18, and limits the two sides of the SMT patch through the two side plates 19. The staff drives the swing plate 16 to rotate, so that the swing plate 16 drives the gear 26 to rotate through the first rotating shaft 22, and the gear 26 drives the toothed plate 27 and the first connecting plate 28 to slide relative to the first guide column 29. The first compression spring 30 is in a compressed state. When the swing plate 16 contacts the SMT patch, the first iron plate 24 and the first magnet block 25 are magnetically attracted to each other. The magnetic force between the first iron plate 24 and the first magnet block 25 is greater than the pressure generated by the first compression spring 30, so that the swing plate 16 is fixed relative to the control box 20. At this time, the swing plate 16 and the positioning plate 17 are respectively in contact with the SMT patch. The other two sides of the sheet are abutted to complete the positioning and loading of the SMT patch. When the driving mechanism drives the first moving belt 2 to move so that the first support plate 8 and the clamping plate 7 move synchronously, the end of the sliding plate 13 contacts the inclined surface on the first support plate 14. As the first moving belt 2 continues to move, the sliding plate 13 slides on the inclined surface of the first support plate 14. The sliding plate 13 drives the clamping plate 7 to move relative to the fixed plate 9 and the first moving belt 2 through the movable plate 10 and the connecting column 11, increasing the distance between the two adjacent clamping plates 7. The tension spring 12 is in a stretched state. Finally, the corresponding two clamping plates 7 pass from the side away from the two side plates 19, and the first support plate 8 passes between the two positioning plates 17. The first support plate 8 contacts the SMT patch. And with the continuous movement of the first moving belt 2 and the first supporting plate 8, the first supporting plate 8 pushes the SMT patch to move synchronously, and the SMT patch pushes the swing plate 16 and the first rotating shaft 22 to rotate relative to the control box 20, and the inclination angles of the swing plate 16 and the first iron plate 24 change, and the first iron plate 24 is no longer magnetically attracted to the first magnet block 25. At this time, the first compression spring 30 is in a compressed state, and the first compression spring 30 pushes the first connecting plate 28 and the toothed plate 27 to move, and the toothed plate 27 drives the first rotating shaft 22 and the swing plate 16 to rotate through the gear 26, so that the bottom end of the swing plate 16 no longer interferes with the movement of the SMT patch and the first supporting plate 8, and the first supporting plate 8 pushes the SMT patch to slide from the two second supporting plates 18 to the first moving belt 2. When the SMT patch slides onto the first moving belt 2, with the continuous movement of the first moving belt 2, the end of the sliding plate 13 slides to the inclined surface of the other end of the first support plate 14, and the tension spring 12 pulls the movable plate 10 and the sliding plate 13 to move, so that the end of the sliding plate 13 slides on the inclined surface of the first support plate 14, and the movable plate 10 drives the clamping plate 7 to move toward the SMT patch through the connecting column 11. When the two clamping plates 7 clamp the SMT patch, with the continuous movement of the first moving belt 2 and the first support plate 8, the end of the sliding plate 13 no longer contacts the inclined surface of the first support plate 14, so that the SMT patch can be fixed relative to the first moving belt 2. When the top detection of the SMT patch is completed and the SMT patch moves to the transfer station, similarly,The end of the sliding plate 13 moves again to the inclined surface of another first support plate 14. As the first moving belt 2 and the first supporting plate 8 continue to move, the corresponding two clamping plates 7 no longer clamp the SMT patch, and the SMT patch can be transferred to the second moving belt 3 through the synchronous transfer structure;

[0048] The first damping disk 51 is driven to rotate by the servo motor 50, and the first damping disk 51 drives the second damping disk 53 and the second rotating shaft 52 to rotate synchronously through the friction force. The second rotating shaft 52 drives the fixed column 55 to slide in the rectangular ring 56 through the third connecting plate 54, and the fixed column 55 pushes the rectangular ring 56 and the movable seat 32 to slide relative to the guide plate 34 and the second fixed frame 33. When the movable seat 32 moves to the preset position, the second iron plate 35 and the second magnet block 57 are in contact. At this time, the second iron plate 35 and the first stop plate 37 are tightly attached, and the magnetic force generated between the second magnet block 57 and the second iron plate 35 is greater than the friction force between the first damping disk 51 and the second damping disk 53, resulting in the first damping disk 51 being unable to drive the second damping disk 53 to rotate through the friction force. The movable seat 32 cannot pull the second iron plate 35 and the second magnet block 57 apart through the connecting block 38, the second guide column 36 and the first stop plate 37, so that the fixed column 55 cannot push the rectangular ring 56 to move toward the second movable belt 3. When the top detection of the SMT patch is completed and the SMT patch moves to the transfer station, the corresponding first support plate 8 and the second iron plate 35 are in contact. As the first movable belt 2 and the first support plate 8 continue to move, the first support plate 8 pushes the second iron plate 35 to separate from the second magnet block 57. At this time, the first damping disk 51 drives the second damping disk 53 to rotate synchronously through the friction force, so that the movable seat 32 drives the first stop plate 37 to move through the connecting block 38 and the second guide column 36. As the first movable belt 2 and the first support plate 8 continue to move, the first damping disk 51 drives the second damping disk 53 to rotate synchronously. A support plate 8 is continuously moved, and the movement speed of the first support plate 8 and the second iron plate 35 is greater than the movement speed of the movable seat 32. When the first support plate 8 pushes the second iron plate 35 to contact the second stop plate 39, as the first support plate 8 continues to move, the first support plate 8 pushes the second iron plate 35, the second stop plate 39, the first stop plate 37, the second guide column 36, the connecting block 38 and the movable seat 32 to move synchronously, so that the suction cup 46 can move synchronously with the first support plate 8 and the SMT patch, and the clamping control component releases the fixation of the SMT patch, and drives the air pump 43, the vacuum box 44, the vacuum pipe 45 and the suction cup 46 to move downward through the hydraulic telescopic rod 42. When the suction cup 46 contacts the SMT patch, air is extracted through the air pump 43. So that the suction cup 46 can absorb the SMT patch, and then the air pump 43 is driven to move upward through the hydraulic telescopic rod 42, so that the SMT patch is no longer in contact with the first moving belt 2. As the first moving belt 2 continues to move, when the first support plate 8 is no longer in contact with the second iron plate 35, the first support plate 8 no longer pushes the second iron plate 35 to move synchronously. At this time, the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, so that the movable seat 32 drives the SMT patch to move above the second moving belt 3, and the second compression spring 41 pushes the second iron plate 35 to move relative to the second guide column 36, so that the second iron plate 35 is in contact with the first stop plate 37 again, and the second iron plate 35 is reset to the initial position relative to the first stop plate 37 and the second guide column 36.The driving mechanism drives the second moving belt 3 and the second support plate 47 to move. When the movable seat 32 drives the support frame 48 to contact the second support plate 47, the moving speed of the second support plate 47 is less than the moving speed of the movable seat 32 and the support frame 48. The second support plate 47 reduces the moving speed of the movable seat 32 and the support frame 48, so that the movable seat 32 and the SMT patch move synchronously with the second moving belt 3. While the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, the first damping disk 51 slides relative to the second damping disk 53. At this time, the hydraulic telescopic rod 42 drives the air pump 43 to move downward, so that the SMT patch contacts the second moving belt 3, and the air pump 43 is turned off. , so that the suction cup 46 no longer absorbs the SMT patch, and then the hydraulic telescopic rod 42 drives the air pump 43 to reset to the initial height, so that the SMT patch can be placed on the second moving belt 3. When the rectangular ring 56 moves to the preset position, the second support plate 47 is no longer in contact with the support frame 48, and the first damping disk 51 drives the second damping disk 53 to rotate synchronously through friction, and the fixed column 55 pushes the rectangular ring 56 to move in the opposite direction, so that the movable seat 32 and the second iron plate 35 move toward the second magnet block 57 again. Finally, the second iron plate 35 and the second magnet block 57 are magnetically attracted again, and the movable seat 32 stops moving in the horizontal direction, and the movable seat 32 and the second iron plate 35 are reset to the initial position.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for SMT patches, comprising a frame (1), characterized in that: A first moving belt (2) and a second moving belt (3) are provided above the frame (1), and a driving mechanism for driving the first moving belt (2) and the second moving belt (3) to move is installed on the frame (1); The frame (1) is fixedly mounted with a first fixed frame (4), the first fixed frame (4) is fixedly mounted with a first detection head (5) located above the first moving belt (2), the frame (1) is fixedly mounted with a second detection head (6) located between the first moving belt (2) and the second moving belt (3), a clamping control component for clamping the SMT patch is provided on the first moving belt (2), and the frame (1) is mounted with a synchronous transfer structure for moving the SMT patch from the first moving belt (2) to the second moving belt (3); The clamping control assembly comprises a plurality of first support plates (8) fixedly mounted on the first moving belt (2), clamping plates (7) being provided on both sides of the first support plate (8), fixed plates (9) being provided on the sides away from each other of the two clamping plates (7), the fixed plates (9) being fixedly connected to the first moving belt (2), a movable plate (10) being provided on the side of the fixed plate (9) away from the clamping plates (7), the movable plate (10) and the clamping plates (7) being fixedly connected via two connecting columns (11), and the connecting columns (11) passing through the fixed plates (9), the movable plate (10) and the fixed plates (9) being connected via a tension spring (12), the frame (1) being provided with a pushing unit cooperating with the movable plate (10), and the frame (1) being provided with a feeding mechanism located above the first moving belt (2); The pushing unit comprises two groups of pushing members arranged above the first moving belt (2); a sliding plate (13) is fixedly connected to the top of the movable plate (10); each group of pushing members comprises two first supporting plates (14); both ends of the first supporting plates (14) are provided with inclined surfaces matching the sliding plates (13); the first supporting plates (14) and the frame (1) are fixedly connected via two first connecting frames (15).

2. The detection device for SMT patches according to claim 1, characterized in that: The feeding mechanism comprises a swing plate (16) arranged above the first moving belt (2); two positioning plates (17) are arranged on a side of the swing plate (16) away from the first detection head (5); the positioning plates (17) are fixedly connected to the corresponding first connecting frame (15); the spacing between the two positioning plates (17) is greater than the length of the first supporting plate (8); a second support plate (18) for supporting the SMT patch is fixedly connected to the side of the positioning plate (17) facing the swing plate (16); a side plate (19) for limiting the position of the SMT patch is fixedly connected to the top of the second support plate (18); and a magnetic oscillator adapted to the swing plate (16) is installed on the frame (1).

3. The detection device for SMT patches according to claim 2, characterized in that: The magnetic oscillator comprises a second connecting frame (21) fixedly mounted on the frame (1), a control box (20) fixedly mounted on the second connecting frame (21), a first rotating shaft (22) rotatably connected inside the control box (20), an avoidance hole (23) adapted to the oscillating plate (16) is provided on the bottom inner wall of the control box (20), the oscillating plate (16) passes through the avoidance hole (23), and the top end of the oscillating plate (16) is fixedly connected to the first rotating shaft (22), a first iron plate (24) is fixedly connected to a side of the oscillating plate (16) away from the first detection head (5), a first magnet block (25) is contacted to a side of the first iron plate (24) away from the oscillating plate (16), and the first magnet block (25) is fixedly connected to the control box (20), and a meshing self-rotating member adapted to the first rotating shaft (22) is installed on the control box (20).

4. The detection device for SMT patch according to claim 3, characterized in that: The meshing self-rotating member comprises two gears (26) fixedly sleeved on the outside of the first rotating shaft (22); a first connecting plate (28) is provided in the control box (20); both ends of the first connecting plate (28) are fixedly connected to toothed plates (27), and the toothed plates (27) are meshed with corresponding gears (26); two first guide columns (29) are passed through the first connecting plate (28); one end of the first guide column (29) is fixedly connected to the inner wall of the control box (20); the other end of the first guide column (29) is fixedly connected to a stop plate (31); and a side of the first connecting plate (28) away from the stop plate (31) is connected to the inner wall of the control box (20) via a first compression spring (30).

5. The detection device for SMT patch according to claim 1, characterized in that: The synchronous transfer structure comprises a movable seat (32) arranged above the first moving belt (2); a frame (1) is provided with a damping reciprocating mechanism matched with the movable seat (32); second fixed frames (33) are respectively provided on both sides of the movable seat (32); the second fixed frames (33) are fixedly connected to the frame (1); the two second fixed frames (33) are fixedly connected via at least one guide plate (34); and the guide plate (34) passes through the movable seat (32); a second iron plate (35) matched with the first support plate (8) is provided on the side of the movable seat (32) facing the first detection head (5); two second guide columns (36) are passed through the second iron plate (35); one end of the second guide column (36) is fixedly connected to the movable seat (32) via a connecting block (38); and the other end of the second guide column (36) is fixedly connected to the movable seat (32) via a connecting block (38). A first stop plate (37) is fixedly connected to the second iron plate (35), and the connecting block (38) and the second iron plate (35) are connected via a second compression spring (41). Two second stop plates (39) are arranged between the second iron plate (35) and the connecting block (38). The second stop plates (39) and the corresponding first stop plates (37) are fixedly connected via a second connecting plate (40). The second moving belt (3) is fixedly mounted with a plurality of second support plates (47). The movable seat (32) is fixedly mounted with a support frame (48) matched with the second support plates (47). A second magnet block (57) is contacted with a side of the second iron plate (35) away from the movable seat (32), and the second magnet block (57) is fixedly connected to a corresponding second fixed frame (33). The movable seat (32) is mounted with a lifting adsorption mechanism for fixing the SMT patch.

6. The detection device for SMT patches according to claim 5, characterized in that: The lifting adsorption mechanism comprises a hydraulic telescopic rod (42) fixedly mounted on a movable seat (32); the telescopic end of the hydraulic telescopic rod (42) is fixedly connected to an air pump (43) located below the movable seat (32); the input end of the air pump (43) is fixedly connected to an air pump box (44); a plurality of air pumping pipes (45) are fixedly connected to the air pump box (44); and one end of the air pumping pipe (45) away from the air pump box (44) is fixedly connected to a suction cup (46).

7. The detection device for SMT patches according to claim 6, characterized in that: The damping reciprocating mechanism comprises a mounting frame (49) fixedly mounted on a frame (1), a servo motor (50) fixedly mounted on the mounting frame (49), an output end of the servo motor (50) fixedly connected to a first damping disk (51), a second rotating shaft (52) rotatably mounted on the mounting frame (49), one end of the second rotating shaft (52) fixedly connected to a second damping disk (53) in contact with the first damping disk (51), the other end of the second rotating shaft (52) fixedly connected to a third connecting plate (54), one end of the third connecting plate (54) away from the second rotating shaft (52) fixedly connected to a fixing column (55), an outer sliding sleeve of the fixing column (55) provided with a rectangular ring (56), and the movable seat (32) and the rectangular ring (56) fixedly connected.

8. A method for detecting SMT patches, using the detection device for SMT patches as claimed in claim 1, characterized in that: The following steps are involved: Step 1: The first moving belt (2) and the second moving belt (3) are driven to move by a driving mechanism, and a worker places the SMT patch to be inspected on the first moving belt (2), and clamps and fixes the SMT patch by a clamping control component; Step 2: When the first moving belt (2) drives the SMT patch to move to the inspection station through the clamping control component, the top of the SMT patch is inspected by the first inspection head (5); Step 3: After the top detection of the SMT patch is completed, the SMT patch is released by the clamping control component, and the released SMT patch is transferred to the second moving belt (3) by the synchronous transfer structure; Step 4: During the transfer process, the bottom of the SMT patch is detected by the second detection head (6). When the SMT patch moves onto the second moving belt (3), the driving mechanism drives the second moving belt (3) to move, so that the second moving belt (3) drives the SMT patch to move to a preset position for unloading.

Images