Finished product appearance detection equipment for semiconductor chip packaging

Abstract

The invention relates to the technical field of appearance detection equipment, in particular to semiconductor chip packaging finished product appearance detection equipment which comprises a machine body, a vibration feeding disc, a detection camera, a chip conveying belt and a driving roller. According to the chip grabbing device, the conveying belt and the grabbing mechanism are arranged to be used in cooperation, the movement speed of the chip conveying belt and the movement speed of the conveying belt are the same, and therefore the grabbing mechanism and the materials can be kept relatively static, and when the materials are conveyed, the materials can be automatically grabbed; the grabbing mechanism can grab the materials without stopping conveying of the materials, then the grabbed materials are placed on the tray, in this way, after the materials are detected, the materials are automatically placed on the material tray, manual tray loading is not needed, manpower can be saved, in this way, the materials can be directly grabbed to be placed on the tray without stopping moving of the materials, and the work efficiency is improved. The problem that operation of the chip conveying belt needs to be stopped when materials are grabbed can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance inspection equipment, in particular to a finished product appearance inspection equipment for semiconductor chip packaging. Background Art

[0002] The finished product appearance inspection equipment for chip packaging is an instrument that uses a camera instead of the human eye for inspection. When in use, the chip to be inspected is placed on the conveyor belt through the loading device, and then the chip is conveyed to the bottom of the camera through the conveyor belt, and then photographed and inspected through the camera.

[0003] In a chip packaging finished product appearance inspection device disclosed in publication number CN111751381A, it includes a storage card seat, a connecting rod and a fixed card plate, the connecting rod and the fixed card plate are fixedly installed with the upper end outer surface of the storage card seat, and the connecting rod is arranged on one side of the fixed card plate, and the lower ends of the connecting rod and the fixed card plate are movably installed with a side rotating plate, the middle position of the inner side of the connecting rod is movably sleeved with a rotating rod, and the connecting rod is movably connected with the side rotating plate through the rotating rod, the inner side of the connecting rod is movably installed with a movable connecting rod, and the connecting rod is movably connected with the side rotating plate through the movable connecting rod, the inner surface of the connecting rod is movably installed with an inner sleeve rod near the movable connecting rod, and the movable connecting rod and the inner sleeve rod are movably connected through a rotating clamp; so that the chip packaging finished product appearance inspection device in the above invention has an auxiliary material dividing structure, improves its flexibility when used, and reduces the user's operation steps, but the above invention can only divide the materials, and after the inspection is completed, it is necessary to manually re-pack the inspected chips. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a finished product appearance inspection device for semiconductor chip packaging.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a finished product appearance inspection device for semiconductor chip packaging, comprising a body, a vibrating loading tray, a detection camera, a chip conveyor belt and a driving roller, a first pulley and a second pulley are arranged on one side of the chip conveyor belt, and the outer walls of the first pulley and the second pulley are sleeved with a conveyor belt, the second pulley is rotatably connected to the body, a plurality of grabbing mechanisms are fixedly connected to the outer wall of the conveyor belt, a bracket is arranged below the first pulley, and the bracket is fixedly connected to the body, a rotating shaft is fixedly connected to one side wall of the driving roller, and one end of the rotating shaft passes through the bracket, a first motor is fixedly connected to one side wall of the bracket, and the driving end of the first motor is fixedly connected to the rotating shaft, a first gear is fixedly sleeved on the outer wall of the rotating shaft, a rotating rod is fixedly connected to the lower surface of the first pulley, and one end of the rotating rod passes through the bracket and extends to the bottom of the bracket, one end of the rotating rod located below the bracket is fixedly connected to the second gear, and the second gear is meshed with the first gear, and a chip tray driving mechanism is arranged below the grabbing mechanism.

[0006] Preferably, the grabbing mechanism includes a shell fixedly connected to the conveyor belt, and the inner wall of the shell is slidably connected with a connecting block, one side wall of the connecting block is fixedly connected with a first spring, and one end of the first spring is fixedly connected to the shell, one end of the connecting block passes through the shell and extends to the outside of the shell, one end of the connecting block located outside the shell is fixedly connected with a ring, and the inner wall of the ring is fixedly connected with a push rod, an electromagnet is fixedly connected below the push rod, and the lower surface of the electromagnet is fixedly connected with a sealing shell, the inner wall of the sealing shell is slidably connected with a piston, and the upper surface of the piston is fixedly connected with a second spring, and the lower surface of the sealing shell is connected to a suction cup.

[0007] Preferably, the chip tray driving mechanism includes a frame fixedly connected to the machine body, and a screw is arranged in the frame, a limit support plate is provided on the outer wall thread sleeve of the screw, a second motor is fixedly connected to the outer wall of the frame, and one end of the screw passes through the frame and is fixedly connected to the driving end of the second motor.

[0008] Preferably, a support shell is fixedly connected to the upper surface of the body, and a magnetic roller is rotatably connected to the inner wall of the support shell, a plurality of protrusions are fixedly connected to the outer wall of the magnetic roller, a plurality of through holes are fixedly connected to one side wall of the support shell, and a stopper is slidably connected to the inner wall of the through hole, a stopper is fixedly connected to one side wall of the ring, one end of the magnetic roller passes through the support shell and extends to the outside of the support shell, a third motor is fixedly connected to the outer wall of the support shell, and a driving end of the third motor is fixedly connected to the magnetic roller.

[0009] Preferably, the piston is made of an iron block, and the outer wall of the iron block is sleeved with a rubber sleeve, and the outer wall of the rubber sleeve is interference fit with the inner wall of the sealing shell.

[0010] Preferably, the magnetic roller comprises a drum, and the inner wall of the drum is fixedly connected with a magnet block, and the protrusion is fixed on the outer wall of the drum.

[0011] Preferably, a sliding rod is fixedly connected to the inner wall of the frame, and the sliding rod passes through the limiting support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, by setting a conveyor belt and a grabbing mechanism for use in conjunction, can make the movement speed of the chip conveyor belt and the conveyor belt the same. Since the movement speed of the chip conveyor belt and the conveyor belt is the same, the grabbing mechanism and the material can be kept relatively still, so that when the material is conveyed, the grabbing mechanism can grab the material without stopping the conveyance of the material, and then put the grabbed material on a plate. In this way, after the material inspection is completed, the material is automatically placed on the material tray without manual loading, which can save manpower. In this way, the material can be directly grabbed and put on a plate without stopping the movement of the material, which can avoid the problem of stopping the operation of the chip conveyor belt due to grabbing the material, and will not affect the efficiency of the inspection. At the same time, when grabbing the material, the grabbing mechanism and the material remain relatively still, which can ensure that the grabbing mechanism can accurately grab the material.

[0013] 2. The present invention sets a magnetic roller for use with a third motor. After the material moves to the top of the material tray, one of the blocks contacts the block rod, thereby causing the block to block the block rod, the grabbing mechanism and the material from continuing to move. At this time, the material and the material tray remain relatively prohibited, the electromagnet is powered off, and the second spring can push the piston to reset, so that the piston releases the suction of the suction cup, allowing the material to accurately fall into the groove on the material tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the conveyor belt of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the frame of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the support shell of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the magnetic roller of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the grabbing mechanism of the present invention; Fig. 9 It is a schematic cross-sectional structural diagram of the grabbing mechanism of the present invention.

[0015] In the figure: 1, machine body; 2, vibrating loading tray; 3, detection camera; 4, chip conveyor belt; 5, driving roller; 6, first pulley; 7, second pulley; 8, conveyor belt; 9, bracket; 10, rotating shaft; 11, first motor; 12, first gear; 13, rotating rod; 14, second gear; 15, shell; 16, connecting block; 17, first spring; 18, collar; 19, push rod; 20, electromagnet; 21, sealing shell; 22, piston; 23, second spring; 24, suction cup; 25, frame; 26, screw rod; 27, limit support plate; 28, second motor; 29, supporting shell; 30, magnetic roller; 31, bump; 32, stop block; 33, stop rod; 34, third motor; 35, slide bar; 301, roller; 302, magnet block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0017] See also Figure 1-Figure 9 A finished product appearance inspection device for semiconductor chip packaging includes a body 1, a vibrating loading tray 2, a detection camera 3, a chip conveyor belt 4 and a driving roller 5. A first pulley 6 and a second pulley 7 are arranged on one side of the chip conveyor belt 4, and a conveyor belt 8 is sleeved on the outer wall of the first pulley 6 and the second pulley 7. The second pulley 7 is rotatably connected to the body 1, and a plurality of gripping mechanisms are fixedly connected to the outer wall of the conveyor belt 8. A bracket 9 is arranged below the first pulley 6, and the bracket 9 is fixedly connected to the body 1. A rotating shaft is fixedly connected to the side wall of one side of the driving roller 5. 10, and one end of the rotating shaft 10 passes through the bracket 9, a side wall of the bracket 9 is fixedly connected with a first motor 11, and a driving end of the first motor 11 is fixedly connected to the rotating shaft 10, an outer wall of the rotating shaft 10 is fixedly sleeved with a first gear 12, a lower surface of the first pulley 6 is fixedly connected with a rotating rod 13, and one end of the rotating rod 13 passes through the bracket 9 and extends to the bottom of the bracket 9, one end of the rotating rod 13 located below the bracket 9 is fixedly connected with a second gear 14, and the second gear 14 is meshed with the first gear 12, and a chip tray driving mechanism is arranged below the grabbing mechanism.

[0018] It can be seen from the above structure that: by setting up the conveyor belt 8 and the grabbing mechanism for use in conjunction, the movement speed of the chip conveyor belt 4 and the conveyor belt 8 can be made the same. Since the movement speed of the chip conveyor belt 4 and the conveyor belt 8 is the same, the grabbing mechanism and the material can be kept relatively still, so that when the material is conveyed, the grabbing mechanism can grab the material without stopping the conveyance of the material, and then the grabbed material can be placed on a plate. In this way, after the material inspection is completed, the material is automatically placed on the material tray without manual loading, which can save manpower. In this way, the material can be directly grabbed and placed on a plate without stopping the movement of the material, which can avoid the problem of stopping the operation of the chip conveyor belt 4 due to grabbing the material, and will not affect the efficiency of the inspection. At the same time, when grabbing the material, the grabbing mechanism and the material remain relatively still, which can ensure that the grabbing mechanism can accurately grab the material.

[0019] Furthermore, the grabbing mechanism includes a shell 15 fixedly connected to the conveyor belt 8, and the inner wall of the shell 15 is slidably connected to a connecting block 16, a side wall of the connecting block 16 is fixedly connected to a first spring 17, and one end of the first spring 17 is fixedly connected to the shell 15, one end of the connecting block 16 passes through the shell 15 and extends to the outside of the shell 15, one end of the connecting block 16 located outside the shell 15 is fixedly connected to a collar 18, and the inner wall of the collar 18 is fixedly connected to a push rod 19, an electromagnet 20 is fixedly connected below the push rod 19, and a sealing shell 21 is fixedly connected to the lower surface of the electromagnet 20, and the inner wall of the sealing shell 21 is slidably connected to the inner wall of the sealing shell 21. The piston 22 is dynamically connected to the sealing shell 21, and the upper surface of the piston 22 is fixedly connected to the second spring 23, and the lower surface of the sealing shell 21 is connected to the suction cup 24; by setting the push rod 19 and the piston 22 and other structures for use in conjunction, when grabbing materials, the push rod 19 is started, so that the push rod 19 pushes the sealing shell 21 and the suction cup 24 and other components to move downward, so that the suction cup 24 is pressed against the material. After the suction cup 24 is pressed against the material, the electromagnet 20 is started, and the started electromagnet 20 sucks the piston 22 to move the piston 22 upward. The upward piston 22 puts the bottom of the sealing shell 21 and the suction cup 24 in a negative pressure. At this time, the suction cup 24 can suck the material to complete the grabbing of the material.

[0020] Furthermore, the chip tray driving mechanism includes a frame 25 fixedly connected to the machine body 1, and a screw rod 26 is arranged in the frame 25, and a limit support plate 27 is threadedly sleeved on the outer wall of the screw rod 26, and a second motor 28 is fixedly connected to the outer wall of the frame 25, and one end of the screw rod 26 passes through the frame 25 and is fixedly connected to the driving end of the second motor 28; by setting the frame 25 and the second motor 28 for use together, after the grooves in a row of the material tray are all filled, the second motor 28 is started, so that the second motor 28 drives the screw rod 26 to rotate, and the rotating screw rod 26 drives the limit support plate 27 and the material tray to move, so that the next row of grooves of the material tray moves to the position to be loaded, until all the grooves are full, the limit support plate 27 can be reset, and then a new material tray can be replaced.

[0021] Furthermore, a support shell 29 is fixedly connected to the upper surface of the body 1, and a magnetic roller 30 is rotatably connected to the inner wall of the support shell 29, a plurality of protrusions 31 are fixedly connected to the outer wall of the magnetic roller 30, a plurality of through holes are fixedly connected to one side wall of the support shell 29, and a stopper 32 is slidably connected to the inner wall of the through hole, a stopper rod 33 is fixedly connected to one side wall of the collar 18, one end of the magnetic roller 30 passes through the support shell 29 and extends to the outside of the support shell 29, a third motor 34 is fixedly connected to the outer wall of the support shell 29, and the third motor 34 is fixedly connected to the outer wall of the support shell 29. The driving end of 34 is fixedly connected to the magnetic roller 30; by setting the magnetic roller 30 and the third motor 34 for use, after the material moves to the top of the material tray, one of the blocks 32 contacts the blocking rod 33, so that the block 32 blocks the blocking rod 33, the grabbing mechanism and the material from continuing to move, at this time the material and the material tray remain relatively prohibited, the electromagnet 20 is powered off, and the second spring 23 can push the piston 22 to reset, so that the piston 22 releases the suction of the suction cup 24, so that the material can accurately fall into the groove on the material tray; After the material falls into the groove of the material tray, the third motor 34 is started, so that the third motor 34 drives the magnetic roller 30 to rotate, and the rotating magnetic roller 30 drives the protrusion 31 to rotate. After the protrusion 31 rotates to a certain angle, the block 32 of the blocking rod 33 loses the support of the protrusion 31 and is sucked into the support shell 29 by the magnetic roller 30. At this time, the grabbing mechanism can continue to follow the conveyor belt 8 to operate. After this grabbing mechanism runs away, the next protrusion 31 runs to the position of pushing out the next block 32, so that the next block 32 can continue to block the next grabbing mechanism.

[0022] Furthermore, the piston 22 is made of an iron block, and the outer wall of the iron block is sleeved with a rubber sleeve, and the outer wall of the rubber sleeve is interference fit with the inner wall of the sealing shell 21; by providing the piston 22 made of the iron block, the electromagnet 20 can attract the piston 22 to move.

[0023] Furthermore, the magnetic roller 30 includes a roller 301, and the inner wall of the roller 301 is fixedly connected with a magnet block 302, and the protrusion 31 is fixed on the outer wall of the roller 301; by setting the magnet block 302, after the protrusion 31 rotates to a certain angle, the block 32 of the blocking rod 33 loses the support of the protrusion 31 and is sucked into the support shell 29 by the magnetic roller 30.

[0024] Furthermore, a slide bar 35 is fixedly connected to the inner wall of the frame body 25, and the slide bar 35 passes through the limiting support plate 27; by setting the slide bar 35, the limiting support plate 27 can be limited to ensure the stability of the limiting support plate 27 when moving.

[0025] In the present invention, when in use, the material tray is placed on the limiting support plate 27, the loading tray 2 is vibrated to put the material onto the chip conveyor belt 4, and then the first motor 11 is started, so that the first motor 11 drives the rotating shaft 10 to rotate, the rotating rotating shaft 10 drives the driving roller 5 to rotate, and the rotating driving roller 5 drives the chip conveyor belt 4 to operate, so that the chip conveyor belt 4 carries the material through the detection camera 3 to complete the detection. After the material detection is completed, the material continues to be conveyed by the chip conveyor belt 4, and when the rotating shaft 10 rotates, the rotating rotating shaft 10 drives the rotating rod 13 to rotate through the first gear 12 and the second gear 14, the rotating rotating rod 13 drives the first pulley 6 to operate, the operating first pulley 6 drives the conveyor belt 8 to operate, the operating conveyor belt 8 drives multiple grabbing mechanisms to operate, and the operation of the chip conveyor belt 4 and the conveyor belt 8 are all through Driven by the first motor 11, the movement speed of the chip conveyor belt 4 and the conveyor belt 8 can be easily ensured to be the same. Since the movement speed of the chip conveyor belt 4 and the conveyor belt 8 is the same, the grabbing mechanism and the material can be kept relatively still, so that when the material is conveyed, the grabbing mechanism can grab it without stopping the conveying of the material, and then put the grabbed material on the plate. In this way, after the material inspection is completed, the material is automatically placed on the material tray without manual loading, which can save manpower, and in this way, the material can be directly grabbed and put on the plate without stopping the movement of the material, which can avoid the problem of stopping the operation of the chip conveyor belt 4 due to grabbing the material, and will not affect the efficiency of the inspection. At the same time, when grabbing the material, the grabbing mechanism and the material remain relatively still, which can ensure that the grabbing mechanism can accurately grab the material; When grasping, the push rod 19 is activated, so that the push rod 19 pushes the sealing shell 21 and the suction cup 24 and other components downward, so that the suction cup 24 presses against the material. After the suction cup 24 presses against the material, the electromagnet 20 is activated, and the activated electromagnet 20 sucks the piston 22 so that the piston 22 moves upward. The upward piston 22 makes the bottom of the sealing shell 21 and the suction cup 24 in a negative pressure. At this time, the suction cup 24 can absorb the material and complete the grasping of the material; After the material is grabbed, the grabbing mechanism moves with the material. After the material moves to the top of the material tray, one of the blocks 32 contacts the stopper rod 33, so that the block 32 blocks the stopper rod 33, and the grabbing mechanism and the material continue to move. At this time, the material and the material tray are relatively prohibited, and the electromagnet 20 is powered off. The second spring 23 can push the piston 22 to reset, so that the piston 22 releases the suction of the suction cup 24, so that the material can accurately fall into the groove on the material tray; After the material falls into the groove of the material tray, the third motor 34 is started, so that the third motor 34 drives the magnetic roller 30 to rotate, and the rotating magnetic roller 30 drives the protrusion 31 to rotate. After the protrusion 31 rotates to a certain angle, the block 32 of the blocking rod 33 loses the support of the protrusion 31 and is sucked into the support shell 29 by the magnetic roller 30. At this time, the grabbing mechanism can continue to follow the conveyor belt 8 to operate. After this grabbing mechanism runs away, the next protrusion 31 runs to the position of pushing out the next block 32, so that the next block 32 can continue to block the next grabbing mechanism; After all the grooves in one row of the material tray are filled, the second motor 28 is started, so that the second motor 28 drives the screw rod 26 to rotate, and the rotating screw rod 26 drives the limiting support plate 27 and the material tray to move, so that the next row of grooves in the material tray moves to the position to be loaded.

[0026] 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 finished product appearance inspection device for semiconductor chip packaging, comprising a body (1), a vibrating loading tray (2), an inspection camera (3), a chip conveyor belt (4) and a driving roller (5), characterized in that: A first pulley (6) and a second pulley (7) are provided on one side of the chip conveyor belt (4), and a conveyor belt (8) is sleeved on the outer walls of the first pulley (6) and the second pulley (7), the second pulley (7) is rotatably connected to the machine body (1), and a plurality of gripping mechanisms are fixedly connected to the outer wall of the conveyor belt (8), a bracket (9) is provided below the first pulley (6), and the bracket (9) is fixedly connected to the machine body (1), a rotating shaft (10) is fixedly connected to the side wall of one side of the driving roller (5), and one end of the rotating shaft (10) passes through the bracket (9), and the bracket (9) is fixedly connected to the side wall of the driving roller (5). ) is fixedly connected to a side wall of one side of the bracket (9), and the driving end of the first motor (11) is fixedly connected to the rotating shaft (10), and the outer wall of the rotating shaft (10) is fixedly sleeved with a first gear (12), and the lower surface of the first pulley (6) is fixedly connected to a rotating rod (13), and one end of the rotating rod (13) passes through the bracket (9) and extends to the bottom of the bracket (9), and one end of the rotating rod (13) located below the bracket (9) is fixedly connected to a second gear (14), and the second gear (14) is meshed with the first gear (12), and a chip tray driving mechanism is arranged below the grasping mechanism.

2. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 1, characterized in that: The grabbing mechanism comprises a shell (15) fixedly connected to a conveyor belt (8), and a connecting block (16) is slidably connected to the inner wall of the shell (15), a first spring (17) is fixedly connected to a side wall of one side of the connecting block (16), and one end of the first spring (17) is fixedly connected to the shell (15), and one end of the connecting block (16) passes through the shell (15) and extends to the outside of the shell (15), one end of the connecting block (16) located outside the shell (15) is fixedly connected to a collar (18), and the inner wall of the collar (18) is fixedly connected to a push rod (19), an electromagnet (20) is fixedly connected below the push rod (19), and a sealing shell (21) is fixedly connected to the lower surface of the electromagnet (20), a piston (22) is slidably connected to the inner wall of the sealing shell (21), and a second spring (23) is fixedly connected to the upper surface of the piston (22), and a suction cup (24) is connected to the lower surface of the sealing shell (21).

3. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 1, characterized in that: The chip tray driving mechanism comprises a frame (25) fixedly connected to the machine body (1), a screw rod (26) is arranged in the frame (25), a limit support plate (27) is provided on the outer wall of the screw rod (26), a second motor (28) is fixedly connected to the outer wall of the frame (25), and one end of the screw rod (26) passes through the frame (25) and is fixedly connected to the driving end of the second motor (28).

4. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 2, characterized in that: A support shell (29) is fixedly connected to the upper surface of the machine body (1), and a magnetic roller (30) is rotatably connected to the inner wall of the support shell (29), a plurality of protrusions (31) are fixedly connected to the outer wall of the magnetic roller (30), a plurality of through holes are fixedly connected to one side wall of the support shell (29), and a stopper (32) is slidably connected to the inner wall of the through hole, a stopper (33) is fixedly connected to one side wall of the collar (18), one end of the magnetic roller (30) passes through the support shell (29) and extends to the outside of the support shell (29), a third motor (34) is fixedly connected to the outer wall of the support shell (29), and a driving end of the third motor (34) is fixedly connected to the magnetic roller (30).

5. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 2, characterized in that: The piston (22) is made of an iron block, and the outer wall of the iron block is sleeved with a rubber sleeve, and the outer wall of the rubber sleeve is interference-fitted with the inner wall of the sealing shell (21).

6. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 4, characterized in that: The magnetic roller (30) comprises a roller (301), wherein the inner wall of the roller (301) is fixedly connected with a magnet block (302), and the protrusion (31) is fixed on the outer wall of the roller (301).

7. The finished product appearance inspection equipment for semiconductor chip packaging according to claim 3, characterized in that: A sliding rod (35) is fixedly connected to the inner wall of the frame body (25), and the sliding rod (35) passes through the limiting support plate (27).

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