An automatic LED placement machine

Abstract

The invention relates to the field of LED chip mounters, in particular to an automated LED chip mounter, comprising a workbench, a first bracket, a second bracket, a transmission device and a chip mount device; the workbench is provided with a first bracket and a second bracket on the top, the transmission device is fixedly installed on the top of the first bracket, and a chip mount device is fixedly connected to one side of the transmission device; the workbench is fixedly connected to a support foot at the bottom, a slide rail assembly is provided in the middle of the workbench, and three groups of suction cup bodies are provided, all of which are L-shaped structures, and the three groups of suction cup bodies have different sizes and can be replaced according to needs. Because the suction cup body is an L-shaped structure, when sucking square electronic components, the two sides of the suction cup body fit each other with the electronic components, which has a limiting effect on the electronic components, thereby ensuring that the electronic components will not be offset in position, facilitating installation on a PCB board, and improving the success rate of the chip mount.

Description

Technical Field

[0001] The invention relates to the field of LED chip mounters, in particular to an automatic LED chip mounter. Background Art

[0002] LED placement machine is a type of SMT (Surface Mount System) placement machine. With the development of LED technology, traditional SMT placement machines can no longer meet the production needs of the LED industry. At this time, LED placement machines came into being. Led placement machines are SMT placement equipment specially designed and customized for the LED industry to realize the assembly of large quantities of LED circuit boards.

[0003] The existing automated LED placement machines mainly have the following problems: 1. Most of the electrical component patches required for LEDs are square patches, and the bottom ends of the suction nozzles on the existing placement machines are all round. When the suction nozzles pick up electrical components, they may be offset, which causes the position deviation of the suction nozzles when installing the patches on the PCB board, resulting in patch failure; 2. When mounting the LED PCB substrate, the sizes of the patches are different due to the different types of electrical components. When dealing with patches of different sizes, the suction nozzles need to be replaced. The replacement process is relatively complicated, and the airtightness needs to be checked before and after the replacement is completed. There are a large number of suction nozzles on the LED placement machine, which greatly wastes time and reduces the patch efficiency. Therefore, we propose an automated LED placement machine. Summary of the invention

[0004] In view of the problems in the prior art that position deviation is easy to occur during chip placement and much time is wasted when replacing the suction nozzle, resulting in reduced chip placement efficiency, the present invention provides an automatic LED chip placement machine.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an automatic LED chip mounter, comprising a workbench, a first bracket, a second bracket, a transmission device and a chip mount device;

[0006] A first bracket and a second bracket are provided on the top of the workbench, a transmission device is fixedly installed on the top of the first bracket, and a patch device is fixedly connected to one side of the transmission device;

[0007] The bottom of the workbench is fixedly connected with a support leg, the middle of the workbench is provided with a slide rail assembly, the top of the slide rail assembly is provided with a PCB board, and the top front side of the workbench is fixedly installed with a patch transmission mechanism;

[0008] The patch device comprises a suction cup assembly, and the suction cup assembly comprises a first sleeve, a second sleeve and a third sleeve;

[0009] A through hole is provided on the outer wall of the front end of the first sleeve, a fixing nut is arranged between the first sleeve and the second sleeve, a rotating cylinder is movably connected to the outer wall of the bottom of the third sleeve, a mounting block is fixedly connected to the bottom of the rotating cylinder, a connecting block is fixedly connected to the outer wall around the mounting block, a rotating shaft is movably connected to the inner wall of the connecting block, a movable cylinder is fixedly connected to the outer wall of the middle part of the rotating shaft, and a suction cup body is fixedly connected to the outer wall of one end of the movable cylinder.

[0010] Specifically, there are three groups of suction cup bodies, the sizes of which increase in sequence, air pipes are arranged between the three groups of suction cup bodies and the mounting blocks, and suction nozzles are arranged on the outer side walls of the three groups of suction cup bodies.

[0011] Specifically, a torque spring is provided at the connection between the rotating shaft and the connecting block.

[0012] The outer wall of the third sleeve is fixedly sleeved on the top of the rotating cylinder, and the outer walls on both sides of the third sleeve are symmetrically fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with a sleeve block, and the rotating cylinder passes through the sleeve block and is fixedly connected to the mounting block. The rotating cylinder is fixedly connected to the mounting block through the sleeve block. The outer wall of the bottom of the sleeve plate is fixedly installed with a rotating motor, and the outer wall of the output shaft of the rotating motor is fixedly connected with a rotating gear, and the bottom end of the output shaft of the rotating motor is fixedly connected with a first rotating pin, and the outer wall of the bottom of the first rotating pin is fixedly sleeved with a first bevel gear, and the bottom of the first bevel gear is meshed with a second bevel gear, and the inner wall of the second bevel gear is fixedly sleeved with a second rotating pin, and the second rotating pin is movably connected to the sleeve block, and the outer wall of the second rotating pin is fixedly sleeved on the rear side of the second bevel gear with a rotating disk, and the front side of the sleeve block is slidably connected with a moving rod, and a connecting rod is arranged between the moving rod and the rotating disk.

[0013] Specifically, a movable pin is arranged between the connecting rod, the moving rod and the rotating disk.

[0014] Specifically, the front outer wall of the sleeve block is fixedly connected to a limit plate, and a limit hole is provided on the inner wall of the limit plate at a position corresponding to the first rotating pin.

[0015] Specifically, a spur tooth groove is provided at a position on the outer wall of the rotating cylinder corresponding to the rotating gear, and the rotating gear is meshed with the rotating cylinder through the spur tooth groove.

[0016] Specifically, a sliding groove is provided on the outer wall of the mounting block at a position corresponding to the moving rod, a rack structure is provided on the outer wall of one end of the moving rod, a tooth groove is provided on the movable cylinder at a position corresponding to the rack structure, and the movable cylinder is meshed with the moving rod through the rack structure and the tooth groove.

[0017] Beneficial effects of the present invention:

[0018] (1) The automated LED placement machine described in the present invention is provided with three groups of suction cup bodies, all of which are L-shaped structures. The three groups of suction cup bodies have different sizes and can be replaced according to needs. Because the suction cup bodies are L-shaped structures, when sucking square electronic components, the two sides of the suction cup bodies fit together with the electronic components, which has a limiting effect on the electronic components, thereby ensuring that the electronic components will not be offset in position, facilitating installation on the PCB board and improving the success rate of the placement.

[0019] (2) The automated LED placement machine described in the present invention is provided with components such as a rotating motor. The rotating motor serves as a driving member to drive the rotating gear to rotate, and the rotating gear drives the rotating cylinder to rotate. The rotating cylinder is fixedly connected to the mounting block, so that the suction cup body on the peripheral side of the mounting block rotates. Since a first rotating pin is installed on the output shaft of the rotating motor, when the rotating motor is working, it drives the first bevel gear on the first rotating pin to rotate, so that the second bevel gear meshing with it rotates. Since the rotating disk and the second bevel gear are coaxial, the rotating disk is driven to rotate by the second bevel gear, and the moving rod is driven downward by the connection of the connecting rod. The moving rod meshes with the movable cylinder, and the movable cylinder is moved downward to rotate. The suction cup body rotates downward to 90° and then stops, and the electronic component is sucked, so that the universality of the suction cup is improved, and there is no need to frequently replace the suction cup body, thereby improving the placement efficiency of the placement machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an automated LED placement machine provided by the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the suction cup assembly;

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0024] Figure 4 for Figure 2 A front view of

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown;

[0026] Figure 6 for Figure 4 An enlarged schematic diagram of part C is shown;

[0027] Figure 7 for Figure 2 Half section view.

[0028] In the figure: 1. workbench; 2. support foot; 3. slide rail assembly; 4. patch device; 5. PCB board; 6. transmission device; 7. first bracket; 8. patch transmission mechanism; 9. second bracket; 10. first sleeve; 11. fixing nut; 12. second sleeve; 13. third sleeve; 14. sleeve plate; 15. suction nozzle; 16. suction cup body; 17. mounting block; 18. rotating motor; 19. sleeve block; 20. connecting rod; 21. rotating cylinder; 22. through hole; 23. suction cup assembly; 24. connecting rod; 25. movable pin; 26. moving rod; 27. movable cylinder; 28. rotating shaft; 29. ​​connecting block; 30. air pipe; 31. rotating gear; 32. limit plate; 33. first rotating pin; 34. first bevel gear; 35. second rotating pin; 36. second bevel gear; 37. rotating disk. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figure 1-Figure 7 As shown, an automatic LED chip mounter of the present invention comprises a workbench 1, a first bracket 7, a second bracket 9, a transmission device 6 and a chip mount device 4;

[0031] A first bracket 7 and a second bracket 9 are provided on the top of the workbench 1. A transmission device 6 is fixedly installed on the top of the first bracket 7. A patch device 4 is fixedly connected to one side of the transmission device 6.

[0032] A support leg 2 is fixedly connected to the bottom of the workbench 1, a slide rail assembly 3 is arranged in the middle of the workbench 1, a PCB board 5 is arranged on the top of the slide rail assembly 3, and a patch conveying mechanism 8 is fixedly installed on the front side of the top of the workbench 1;

[0033] The patch device 4 includes a suction cup assembly 23, which includes a first sleeve 10, a second sleeve 12 and a third sleeve 13; a through hole 22 is opened on the outer wall of the front end of the first sleeve 10, a fixing nut 11 is arranged between the first sleeve 10 and the second sleeve 12, a rotating cylinder 21 is movably sleeved on the outer wall of the bottom of the third sleeve 13, a mounting block 17 is fixedly connected to the bottom of the rotating cylinder 21, a connecting block 29 is fixedly connected to the outer wall of the peripheral side of the mounting block 17, a rotating shaft 28 is movably sleeved on the inner wall of the connecting block 29, a movable cylinder 27 is fixedly sleeved on the outer wall of the middle part of the rotating shaft 28, and a suction cup body 16 is fixedly connected to the outer wall of one end of the movable cylinder 27; the number of the suction cup body 16 is three groups, and the sizes of the three groups of suction cup bodies 16 increase successively, an air pipe 30 is arranged between the three groups of suction cup bodies 16 and the mounting block 17, and a suction nozzle 15 is opened on the outer wall of the three groups of suction cup bodies 16;

[0034] The complete set of patches is placed on the patch conveying mechanism 8, which conveys them. The movement of the patch device 4 is controlled by the numerical control panel, and the patch device 4 is moved to the patch position of the patch conveying mechanism 8, and then the required patches are sucked. The sucking process is to start the air pump (not shown in the figure), and the air pump is connected to the suction cup assembly 23 through a suction pipe. Since the suction cup assembly 23 itself is composed of a first sleeve 10, a second sleeve 12 and a third sleeve 13, the three groups of sleeves are interconnected, and an air pipe 30 is provided between the third sleeve 13 and the mounting block 17. The air pipe 30 passes through the mounting block 17 and is connected to the suction cup body 16. When the air pump is working, the first sleeve 10, the second sleeve 12 and the third sleeve 13 are connected to the suction cup body 16. Suction is generated inside the suction cup assembly 23 composed of the first and second sleeves 12 and the third sleeve 13. Since one end of the air pipe 30 is connected to the suction cup body 16, the suction cup body 16 generates corresponding suction, and the square electronic components are sucked by the suction nozzle 15 provided on the suction cup body 16. Since the suction cup body 16 is L-shaped, the adjacent two sides of the electronic components are tightly sucked along the two sides of the suction cup body 16 along which the suction nozzle 15 is provided. The suction cup body 16 limits the two sides of the electronic components to prevent the position of the electronic components from shifting, which facilitates the patch work of the electronic components. Then the patch device 4 places the sucked patch in the patch groove of the PCB board 5 on the slide rail assembly 3 to complete the patch work.

[0035] The outer wall of the third sleeve 13 is fixedly sleeved with a sleeve plate 14 at the top of the rotating cylinder 21. The outer walls on both sides of the third sleeve 13 are symmetrically fixedly connected with connecting rods 20. The bottom end of the connecting rod 20 is fixedly connected with a sleeve block 19. The rotating cylinder 21 passes through the sleeve block 19 and is fixedly connected with the mounting block 17. The outer wall of the bottom of the sleeve plate 14 is fixedly installed with a rotating motor 18. The outer wall of the output shaft of the rotating motor 18 is fixedly connected with a rotating gear 31. The outer wall of the rotating cylinder 21 is provided with a straight tooth groove at a position corresponding to the rotating gear 31. The rotating gear 31 is meshed with the rotating cylinder 21 through the straight tooth groove.

[0036] When it is necessary to absorb different patches, the corresponding suction cup body 16 should be replaced at the same time. The specific replacement process is divided into two steps. The first is the rotation of the suction cup body 16. The rotating motor 18 is started. The output shaft of the rotating motor 18 drives the rotating gear 31 to rotate. Since the rotating gear 31 is meshed with the rotating cylinder 21 through the straight tooth groove, when the rotating gear 31 rotates, it drives the rotating cylinder 21 to rotate along the third sleeve 13. The rotating cylinder 21 and the mounting block 17 are fixedly connected. The rotation of the rotating cylinder 21 will drive the mounting block 17 to rotate, so that the suction cup body 16 connected to the outside of the mounting block 17 rotates to the front side of the suction cup assembly 23. Since there is a certain distance between the suction cup body 16 and the sleeve block 19, during the rotation of the suction cup body 16, it can be ensured that the suction cup body 16 will not collide with the sleeve block 19, so as to ensure the normal rotation of the suction cup body 16. During the rotation, the suction cup body 16 will rotate downward through the linkage of the components.

[0037] The bottom end of the output shaft of the rotating motor 18 is fixedly connected to a first rotating pin 33, the bottom outer wall of the first rotating pin 33 is fixedly sleeved with a first bevel gear 34, the bottom of the first bevel gear 34 is meshed with a second bevel gear 36, the inner wall of the second bevel gear 36 is fixedly sleeved with a second rotating pin 35, the second rotating pin 35 is movably connected to the sleeve block 19, the outer wall of the second rotating pin 35 and the rear side of the second bevel gear 36 is fixedly sleeved with a rotating disk 37, the front side of the sleeve block 19 is slidably connected to a moving rod 26, a connecting rod 24 is arranged between the moving rod 26 and the rotating disk 37, and the connecting rod 24 is arranged between the moving rod 26 and the rotating disk 37. A movable pin 25 is arranged between 4 and the moving rod 26 and the rotating disk 37, the front outer wall of the sleeve block 19 is fixedly connected to the limit plate 32, the inner wall of the limit plate 32 is provided with a limit hole at a position corresponding to the first rotating pin 33, the outer wall of the mounting block 17 is provided with a sliding groove at a position corresponding to the moving rod 26, the outer wall of one end of the moving rod 26 is provided with a rack structure, the movable cylinder 27 is provided with a tooth groove at a position corresponding to the rack structure, and the movable cylinder 27 is meshed with the moving rod 26 through the rack structure and the tooth groove, and a torque spring is provided at the connection between the rotating shaft 28 and the connecting block 29;

[0038] When the second set of suction cup bodies 16 needs to be replaced, the rotating cylinder 21 needs to be rotated 90°. While the suction cup bodies 16 are rotating, since the bottom of the output shaft of the rotating motor 18 is connected to the first rotating pin 33, and the first rotating pin 33 is sleeved with the first bevel gear 34, the rotation of the output shaft of the rotating motor 18 will drive the first bevel gear 34 on the first rotating pin 33 to rotate at the same time. Since the first bevel gear 34 and the second bevel gear 36 are meshed with each other, the first bevel gear 34 will drive the second bevel gear 36 to rotate, and the second bevel gear 36 and the rotating disk 37 are concentric with the second rotating pin 35. The second bevel gear 36 and the rotating disk 37 are both fixedly sleeved with the second rotating pin 35, and the second rotating pin 35 is movably connected with the sleeve block 19, so when the second bevel gear 36 rotates, the second rotating pin 35 is driven to rotate, and the second rotating pin 35 drives the rotating disk 37 to rotate, and the rotating disk 37 is connected to the moving rod 26 through the connecting rod 24, and the connecting rod 24 is rotatably connected to the rotating disk 37 and the moving rod 26 through the movable pin 25. When the rotating disk 37 rotates, the connecting rod 24 moves along the movable pin 25 on the rotating disk 37. When the limit angle is reached, the connecting rod 24 drives the moving rod 26 along the installation The sliding groove provided on the mounting block 17 moves, so that the moving rod 26 moves downward. Since the moving rod 26 is meshed with the movable cylinder 27 through the rack structure and the tooth groove, the moving rod 26 will drive the movable cylinder 27 to rotate downward when it moves downward. The movable cylinder 27 is fixedly connected to the suction cup body 16, so the suction cup body 16 is driven to move downward until 90°, and the rotating motor 18 stops working. At this time, the self-rotation and revolution of the suction cup body 16 of the second group are realized. If it is necessary to realize the self-rotation and revolution of the third group of suction cup bodies 16, the rotating cylinder 21 needs to be rotated 180°. During this rotation process, the rotating disk 37 rotates The angle is larger, and the moving rod 26 will move down at this time. Then, when the rotating disk 37 continues to rotate, the moving rod 26 will move up driven by the connecting rod 24. Since the depth and width of the sliding groove are greater than the moving rod 26, the moving rod 26 will not be stuck in the sliding groove when the mounting block 17 rotates. After the rotating disk 37 rotates through a cycle, the moving rod 26 will move down again. At this time, it will contact the movable cylinder 27 on the suction cup body 16 of the third group and drive it to rotate, so that the suction cup body 16 of the third group rotates, thereby realizing the work of replacing the suction cup without disassembly, saving replacement and inspection time, and improving patch efficiency.

[0039] Working principle:

[0040] Suction cup patch process:

[0041] The patch device 4 is moved to the patch conveying mechanism 8 through the CNC panel hole, and the air pump is started to suck the patch on the patch conveying mechanism 8 through the suction cup body 16. Since the suction cup body 16 itself is L-shaped, the square electronic components can be effectively tightly fitted with the two sides of the suction nozzle 15 on the suction cup body 16 to prevent the position of the electronic components from shifting. Then, the patch device 4 is moved to the placement groove of the PCB board 5 with the patch for fitting, which is convenient for patch work;

[0042] Procedure for replacing the suction cup:

[0043] By starting the rotating motor 18, the output shaft of the rotating motor 18 drives the rotating gear 31 to rotate and drives the rotating cylinder 21 to rotate, that is, drives the mounting block 17 connected to the rotating cylinder 21 to rotate, so that the corresponding suction cup body 16 rotates to the front side of the suction cup assembly 23, and at the same time, the output shaft of the rotating motor 18 drives the first bevel gear 34 to rotate, and the first bevel gear 34 drives the second bevel gear 36 to rotate, so that the rotating disk 37 rotates, and the rotating disk 37 is connected to the moving rod 26 through the connecting rod 24. The rotation of the rotating disk 37 drives the moving rod 26 to move downward, so that the movable cylinder 27 rotates and finally the suction cup body 16 rotates downward 90°, thereby realizing the function of replacing the suction cup without disassembly, saving replacement time and inspection time, and improving patch efficiency.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated LED placement machine, characterized in that: It comprises a workbench (1), a first bracket (7), a second bracket (9), a transmission device (6) and a patch device (4); A first bracket (7) and a second bracket (9) are arranged on the top of the workbench (1); a transmission device (6) is fixedly mounted on the top of the first bracket (7); and a patch device (4) is fixedly connected to one side of the transmission device (6); The bottom of the workbench (1) is fixedly connected to a support leg (2), a slide rail assembly (3) is arranged in the middle of the workbench (1), a PCB board (5) is arranged on the top of the slide rail assembly (3), and a patch conveying mechanism (8) is fixedly installed on the front side of the top of the workbench (1); The patch device (4) comprises a suction cup assembly (23), and the suction cup assembly (23) comprises a first sleeve (10), a second sleeve (12) and a third sleeve (13); A through hole (22) is provided on the outer wall of the front end of the first sleeve (10); a fixing nut (11) is provided between the first sleeve (10) and the second sleeve (12); a rotating cylinder (21) is movably sleeved on the outer wall of the bottom of the third sleeve (13); a mounting block (17) is fixedly connected to the bottom of the rotating cylinder (21); a connecting block (29) is fixedly connected to the outer wall of the peripheral side of the mounting block (17); a rotating shaft (28) is movably sleeved on the inner wall of the connecting block (29); a movable cylinder (27) is fixedly sleeved on the outer wall of the middle part of the rotating shaft (28); and a suction cup body (16) is fixedly connected to the outer wall of one end of the movable cylinder (27); The suction cup body (16) is an L-shaped structure. The number of the suction cup body (16) is three groups. The sizes of the three groups of suction cup bodies (16) are increased in sequence. An air pipe (30) is arranged between the three groups of suction cup bodies (16) and the mounting block (17). Suction nozzles (15) are arranged on the outer side walls of the three groups of suction cup bodies (16). The outer wall of the third sleeve (13) is fixedly sleeved with a sleeve plate (14) located at the top of the rotating cylinder (21); the outer walls on both sides of the third sleeve (13) are symmetrically fixedly connected with connecting rods (20); the bottom end of the connecting rod (20) is fixedly connected with a sleeve block (19); the rotating cylinder (21) passes through the sleeve block (19) and is fixedly connected to the mounting block (17); a rotating motor (18) is fixedly installed on the outer wall of the bottom of the sleeve plate (14); a rotating gear (31) is fixedly connected to the outer wall of the output shaft of the rotating motor (18); and a first rotating pin is fixedly connected to the bottom end of the output shaft of the rotating motor (18). (33), a first bevel gear (34) is fixedly sleeved on the outer wall at the bottom of the first rotating pin (33), a second bevel gear (36) is meshed at the bottom of the first bevel gear (34), a second rotating pin (35) is fixedly sleeved on the inner wall of the second bevel gear (36), the second rotating pin (35) is movably connected to the sleeve block (19), a rotating disk (37) is fixedly sleeved on the outer wall of the second rotating pin (35) and located at the rear side of the second bevel gear (36), a moving rod (26) is slidably connected to the front side of the sleeve block (19), and a connecting rod (24) is arranged between the moving rod (26) and the rotating disk (37).

2. The automatic LED placement machine according to claim 1, characterized in that: A torque spring is provided at the connection between the rotating shaft (28) and the connecting block (29).

3. The automatic LED placement machine according to claim 1, characterized in that: A movable pin (25) is arranged between the connecting rod (24), the moving rod (26) and the rotating disk (37).

4. The automatic LED placement machine according to claim 1, characterized in that: The front outer wall of the sleeve block (19) is fixedly connected to a limiting plate (32), and a limiting hole is provided on the inner wall of the limiting plate (32) at a position corresponding to the first rotating pin (33).

5. The automatic LED placement machine according to claim 1, characterized in that: A spur tooth groove is provided at a position on the outer wall of the rotating cylinder (21) corresponding to the rotating gear (31), and the rotating gear (31) is meshed with the rotating cylinder (21) via the spur tooth groove.

6. The automatic LED placement machine according to claim 1, characterized in that: A sliding groove is provided at a position corresponding to the outer wall of the mounting block (17) and the moving rod (26); a rack structure is provided at an outer wall of one end of the moving rod (26); a tooth groove is provided at a position corresponding to the rack structure and the moving cylinder (27); and the moving cylinder (27) and the moving rod (26) are meshed with each other through the rack structure and the tooth groove.

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