Crystal taking and fixing device

Abstract

The utility model discloses a wafer taking and fixing device, which relates to the field of wafer fixing machines and comprises an L-shaped plate, swing arm mechanisms are mounted above and below a transverse plate part of the L-shaped plate, pressing mechanisms are mounted on two sides of a vertical rod part of the L-shaped plate, a connecting unit is mounted on the inner side of the vertical plate part of the L-shaped plate, and the connecting unit is connected with the pressing mechanisms through springs. The swing arm mechanism is used for taking the LED chip, and the pressing mechanism is used for carrying out die bonding on the LED chip transferred to a preset position; and the connecting unit is used for replacing the spring. By arranging the connecting unit, when the spring is used for a long time and needs to be replaced, the connecting unit can provide effective gripping force, the spring does not need to be in butt joint with the clamp, damage of the clamp to the spring is avoided, the spring can be replaced conveniently, and the replacement efficiency of the spring is improved.

Description

Technical Field

[0001] The utility model relates to the field of crystal bonding machines, in particular to a crystal taking and bonding device. Background Art

[0002] The loading mechanism transfers the PCB board to the working position on the fixture. The dispensing mechanism first dispenses glue at the position of the PCB where the wafer needs to be bonded. Then the bonding arm moves from the origin position to the wafer suction position. The wafer is placed on the expander wafer plate supported by a film. After the bonding arm is in place, the suction nozzle moves downward and moves upward to lift the wafer. After picking up the wafer, the bonding arm returns to the origin position (leakage detection position), and then moves from the origin position to the bonding position. After the suction nozzle bonds the wafer downward, the bonding arm returns to the origin position again. This is a complete bonding process.

[0003] The action of the pressing assembly of the die bonder relies on the power supply of the drive motor to complete the pressing of the swing arm. The reset is generally: the drive motor is powered off, the spring resets and pulls the pressing mechanism to reset, thereby increasing the reset speed of the pressing mechanism. The swing arm mechanism is very fast in the process of reciprocating rotation, so the spring will be quickly stretched and reset in the process, and elastic fatigue is very likely to occur. Once this happens, the pressing mechanism cannot be reset to the initial position, causing interference with the rotation of the swing arm.

[0004] In the prior art, tools are generally used to remove the two ends of the spring from the fixing ring, and then one end of the new spring is connected to the fixing ring. At this time, the connecting block can be rotated, so the other end of the spring is conveniently hooked with the fixing ring on the connecting block. At this time, the connecting block is tilted toward the spring under the pulling force of the spring. Then, when installing the other spring, it is very laborious and a clamp-like tool needs to be used to pull the spring, which can easily cause the spring to be clamped. The installation method is inconvenient and takes a long time. Utility Model Content

[0005] The purpose of the utility model is to provide a crystal taking and crystal bonding device in order to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a crystal picking and crystal bonding device, comprising an L-shaped plate, wherein swing arm mechanisms are installed on the upper and lower sides of the horizontal plate portion of the L-shaped plate, downward pressing mechanisms are installed on both sides of the vertical rod portion of the L-shaped plate, and a connecting unit is installed on the inner side of the vertical plate portion of the L-shaped plate, and the connecting unit is connected to the downward pressing mechanism through a spring;

[0007] The swing arm mechanism is used to remove the LED chip, and the pressing mechanism is used to transfer the LED chip to a predetermined position for solidification;

[0008] The connecting unit is used to replace the spring.

[0009] As a further solution of the utility model: the swing arm mechanism includes: a reciprocating rotating motor, a limit plate, a sliding plate, a swing arm, a column, a protrusion, a second movable groove and a compression spring;

[0010] The reciprocating rotating motor is installed at the top of the horizontal plate portion of the L-shaped plate, the output end of the reciprocating rotating motor passes through the bottom of the horizontal plate portion of the L-shaped plate, the limit plate is connected to the output end of the reciprocating rotating motor through a rotating shaft and a coupling, the sliding plate is connected to the bottom of the limit plate by sliding up and down, and the swing arm is fixedly installed on one side of the sliding plate;

[0011] The column is integrally formed at the bottom of the limiting plate and penetrates from the top of the sliding plate to the inside of the sliding plate. The protrusion is integrally formed at the bottom end of the column. The second movable groove is opened inside the sliding plate, and the second movable groove is used for the protrusion to slide up and down.

[0012] The compression spring is arranged between the top end of the protrusion and the top end of the inner cavity of the second movable groove.

[0013] As a further solution of the utility model: the pressing mechanism includes: a driving motor, a connecting block, a pressure plate, a sliding plate, a sliding groove, a bottom plate, a connecting plate and a return spring;

[0014] The driving motor is installed on the outside of the vertical plate portion of the L-shaped plate, and the output end of the driving motor passes through the inner side of the vertical plate portion of the L-shaped plate. The upper part of one side of the connecting block is connected to the output end of the driving motor through a rotating shaft and a coupling, and the limiting plate is fixedly installed below the other side of the connecting block;

[0015] The slide groove is vertically opened on the inner side of the vertical plate portion of the L-shaped plate, the slider on one side of the slide plate is slidably connected to the inner cavity of the slide groove, the bottom end of the slide plate is fixedly connected to a connecting plate, and the top of the connecting plate is rotatably connected to the bottom end of the sliding plate;

[0016] The bottom end of the vertical plate portion of the L-shaped plate is installed with a bottom plate by bolts to seal the bottom opening of the slide groove, the return spring is arranged in the inner cavity of the slide groove, the bottom end of the slide groove contacts the top end of the bottom plate, and the top end of the slide groove contacts the bottom end of the slider of the slide plate.

[0017] As a further solution of the utility model: the connection unit is connected to the vertical plate portion of the L-shaped plate by threads;

[0018] The connecting unit comprises: a rotating unit, a docking unit and a fixing ring, and the rotating unit comprises: a hexagonal block, a rotating column and a screw head;

[0019] The screw head is formed at one end of the rotating column, the hexagonal block is integrally formed at the other end of the outer wall of the rotating column, and a screw hole connected to the screw head is opened on the vertical plate portion of the L-shaped plate.

[0020] As a further solution of the utility model: the docking unit includes: a connecting column, a limiting column, a limiting hole, a limiting member and a first movable groove;

[0021] The connecting column is located at an end of the rotating column away from the screw head, the first movable groove is opened inside the end of the connecting column close to the rotating column, the limiting member is integrally formed at the end of the rotating column away from the screw head, and the limiting member is movably connected to the inside of the first movable groove;

[0022] One end of the rotating column is located on both sides of the limiting member and is integrally formed with limiting columns protruding outward, and one end of the connecting column close to the rotating column is provided with a limiting hole for accommodating the limiting column.

[0023] As a further solution of the utility model: the number of the fixing rings is four, two of which are fixedly connected to one end of the connecting column, and the other two fixing rings are located below the two sides and the two ends of the two connecting blocks are respectively hooked with the fixing ring at one end of the connecting column and the fixing ring below one side of the connecting block.

[0024] As a further solution of the utility model: the cross-sections of the slide groove and the slide block of the slide plate are both in a "convex" shape.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] By setting up a connecting unit, when the spring needs to be replaced after long-term use, the connecting unit can provide effective gripping force, the spring does not need to be docked with the clamp, thus avoiding damage to the spring by the clamp, and the spring can be replaced more conveniently, thereby improving the efficiency of spring replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the installation of the return spring of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the connection unit of the utility model;

[0030] Figure 4 This is a schematic diagram of the internal structure of the connection unit of the utility model;

[0031] Figure 5It is a structural schematic diagram of the swing arm mechanism of the utility model.

[0032] In the figure: 1. L-shaped plate; 2. reciprocating rotating motor; 3. driving motor; 4. limiting plate; 5. sliding plate; 6. swing arm; 7. connecting block; 8. pressure plate; 9. connecting unit; 901. connecting column; 902. fixing ring; 903. hexagonal block; 904. rotating column; 905. screw head; 906. limiting column; 907. limiting hole; 908. limiting member; 909. first movable groove; 10. spring; 11. slide plate; 12. slide groove; 13. bottom plate; 14. connecting plate; 15. reset spring; 16. column; 17. protrusion; 18. second movable groove; 19. compression spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1 to Figure 5 In the embodiment of the utility model, a crystal taking and crystal fixing device comprises an L-shaped plate 1, a swing arm mechanism is installed on the upper and lower sides of the horizontal plate portion of the L-shaped plate 1, a pressing mechanism is installed on both sides of the vertical rod portion of the L-shaped plate 1, and a connecting unit 9 is installed on the inner side of the vertical plate portion of the L-shaped plate 1, and the connecting unit 9 is connected to the pressing mechanism through a spring 10;

[0035] The swing arm mechanism is used to remove the LED chip, and the pressing mechanism is used to transfer the LED chip to the predetermined position for solidification;

[0036] The connecting unit 9 is used to replace the spring 10 .

[0037] In this embodiment: when the LED chip is to be removed from the crystal, the swing arm mechanism is started, the swing arm mechanism reciprocates, the LED chip is transferred, and placed on the substrate with glue. During the reciprocating rotation of the swing arm mechanism (it should be noted that the rotation range of the swing arm mechanism is generally set, that is, the two ends of the rotation range, one end is the wafer, and the other end is the substrate), when the swing arm mechanism rotates to any one end of the rotation range, the pressing mechanism operates, and the pressing mechanism presses down the swing arm mechanism, so that the suction nozzle on the swing arm mechanism can drive the LED chip to contact the chip on the wafer, or drive the suction nozzle on the swing arm mechanism to press the LED wafer down to the surface of the substrate.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5 The swing arm mechanism includes: a reciprocating rotating motor 2, a limit plate 4, a sliding plate 5, a swing arm 6, a column 16, a protrusion 17, a second movable groove 18 and a compression spring 19;

[0039] The reciprocating rotating motor 2 is installed at the top of the horizontal plate portion of the L-shaped plate 1, and the output end of the reciprocating rotating motor 2 passes through the bottom of the horizontal plate portion of the L-shaped plate 1. The limit plate 4 is connected to the output end of the reciprocating rotating motor 2 through a rotating shaft and a coupling. The sliding plate 5 is connected to the bottom of the limit plate 4 by sliding up and down, and the swing arm 6 is fixedly installed on one side of the sliding plate 5.

[0040] The column 16 is integrally formed at the bottom of the limiting plate 4 and penetrates from the top of the sliding plate 5 to the inside of the sliding plate 5. The protrusion 17 is integrally formed at the bottom of the column 16. The second movable groove 18 is opened inside the sliding plate 5, and the second movable groove 18 is used for the protrusion 17 to slide up and down.

[0041] The compression spring 19 is disposed between the top end of the protrusion 17 and the top end of the inner cavity of the second movable groove 18 .

[0042] In this embodiment: the reciprocating rotating motor 2 starts and reciprocates, thereby driving the limit plate 4 and the sliding plate 5 to rotate reciprocatingly, and the sliding plate 5 drives the swing arm 6 to rotate back and forth. When the swing arm mechanism rotates to the maximum position at both ends, the pressing mechanism is powered on and started, and the pressing mechanism applies a downward extrusion force to the sliding plate 5. The sliding plate 5 squeezes the compression spring 19. At this time, the compression spring 19 is deformed, and the second movable groove 18 moves downward along the outer wall of the protrusion 17. At this time, the sliding plate 5 can drive the swing arm to move down to the height for absorbing or placing the LED chip.

[0043] Please refer to Figure 1 and Figure 2 The pressing mechanism includes: a driving motor 3, a connecting block 7, a pressure plate 8, a slide plate 11, a slide groove 12, a bottom plate 13, a connecting plate 14 and a return spring 15;

[0044] The driving motor 3 is installed on the outside of the vertical plate portion of the L-shaped plate 1, and the output end of the driving motor 3 passes through the inside of the vertical plate portion of the L-shaped plate 1. The upper part of one side of the connecting block 7 is connected to the output end of the driving motor 3 through a rotating shaft and a coupling, and the limiting plate 4 is fixedly installed at the lower part of the other side of the connecting block 7;

[0045] The slide groove 12 is vertically opened inside the vertical plate portion of the L-shaped plate 1, and the slider on one side of the slide plate 11 is slidably connected to the inner cavity of the slide groove 12 up and down. The bottom end of the slide plate 11 is fixedly connected to a connecting plate 14, and the top of the connecting plate 14 is rotatably connected to the bottom end of the sliding plate 5;

[0046] The bottom end of the vertical plate portion of the L-shaped plate 1 is installed with a bottom plate 13 by bolts to seal the bottom opening of the slide groove 12, and a return spring 15 is arranged in the inner cavity of the slide groove 12. The bottom end of the slide groove 12 contacts the top end of the bottom plate 13, and the top end of the slide groove 12 contacts the bottom end of the slider of the slide plate 11.

[0047] In this embodiment: when the swing arm mechanism rotates to the two ends of the maximum range, the drive motor 3 is energized, and the drive motor 3 drives the connecting block 7 to rotate from the inclined angle to the vertical position. At this time, the pressure plate 8 moves from the high point to the low point, and the slide plate 11 is pressed downward. The slide plate 11 drives the slider on it to slide downward along the slide groove 12, and the slider presses the reset spring 15. At the same time, the slide plate 11 drives the connecting plate 14 to move downward, and the connecting plate 14 can drive the sliding plate 5 to move downward, and the sliding plate 5 can drive the swing arm 6 to move downward;

[0048] After the drive motor 3 drives the connecting block 7 to move to the lowest position, the controller is powered off. At this time, the connecting block 7 is pulled to reset under the action of the reset force of the spring 10. It should be noted that the drive motor 3 is not a shaft-holding motor, so its output shaft can still rotate under the force after it is powered off.

[0049] Please refer to Figure 3 and Figure 4 , the connection unit 9 is connected to the vertical plate portion of the L-shaped plate 1 by screw threads;

[0050] The connecting unit 9 includes: a rotating unit, a docking unit and a fixing ring 902, and the rotating unit includes: a hexagonal block 903, a rotating column 904 and a screw head 905;

[0051] The screw head 905 is formed at one end of the rotating column 904, and the hexagonal block 903 is integrally formed at the other end of the outer wall of the rotating column 904. A screw hole connected to the screw head 905 is opened on the vertical plate portion of the L-shaped plate 1;

[0052] The docking unit includes: a connecting column 901, a limiting column 906, a limiting hole 907, a limiting member 908 and a first movable groove 909;

[0053] The connecting column 901 is located at one end of the rotating column 904 away from the screw head 905, the first movable groove 909 is opened inside the end of the connecting column 901 close to the rotating column 904, the limiting member 908 is integrally formed at one end of the rotating column 904 away from the screw head 905, and the limiting member 908 is movably connected to the inside of the first movable groove 909;

[0054] One end of the rotating column 904 is located on both sides of the limiting member 908 and is integrally formed with a limiting column 906 protruding outward, and one end of the connecting column 901 close to the rotating column 904 is provided with a limiting hole 907 for accommodating the limiting column 906;

[0055] There are four fixing rings 902, two of which are fixedly connected to one end of the connecting column 901, and the other two fixing rings 902 are located below the two sides and the two ends of the two connecting blocks 7 are respectively hooked with the fixing ring 902 at one end of the connecting column 901 and the fixing ring 902 at the bottom of one side of the connecting block 7.

[0056] In this embodiment, during long-term use of the spring 10, metal fatigue is likely to occur, resulting in a decrease in elastic coefficient, and the connection block 7 cannot be effectively driven to reset;

[0057] At this time, the equipment is stopped, and the hexagonal block 903 is docked by using a tool, and the hexagonal block 903 is driven to rotate by the tool, and the hexagonal block 903 drives the rotating column 904 to rotate, and the rotating column 904 drives the screw head 905 to rotate until the screw head 905 is separated from the screw hole on the vertical plate part of the L-shaped plate 1. At this time, the connecting unit 9 can be removed, and then the two ends of the spring 10 are separated from the fixing ring 902 respectively, and the two ends of the new spring 10 are hooked with the fixing ring 902 again;

[0058] Then, the connection unit 9 is pulled to realign the screw head 905 with the screw hole, and the hexagonal block 903 is rotated by hand to achieve the initial engagement and docking of the screw head 905 with the screw hole. Then, the hexagonal block 903 is rotated with a tool, and the rotation of the hexagonal block 903 drives the rotating column 904 and the screw head 905 to rotate until the screw head 905 is completely engaged with the screw hole. It should be noted that the tightening directions of the two screw heads 905 are in opposite directions, so the connection between the screw head 905 and the screw hole will not be loosened during the process of pulling up and resetting the spring 10.

[0059] In order to avoid the spring 10 from twisting during the rotation of the rotating column 904, when the rotating column 904 is rotated, the connecting column 901 is pulled, and the connecting column 901 drives the first movable groove 909 to slide outward along the wide part of the end of the limiting member 908 (the interface of the limiting member 908 is a "convex"-shaped structure with a narrow left and a wide right), and at the same time, the connecting column 901 drives the limiting hole 907 to move along the outer wall of the limiting column 906 until the limiting hole 907 is completely separated from the limiting column 906. At this time, the rotation of the rotating column 904 will drive the limiting member 908 to rotate in the first movable groove 909, but will not drive the connecting column 901 to rotate, so the spring 10 will not be twisted when the rotating column 904 rotates;

[0060] After the rotating column 904 is rotated and installed, the connecting column 901 can be limited by aligning the limiting hole 907 with the limiting column 906 and pushing the connecting column 901 to reset. It should be noted that: since the limiting hole 907 and the limiting column 906 are both out of sight, in order to facilitate the alignment of the two, a marking line can be engraved on the connecting column 901, the rotating column 904 and the hexagonal block 903 along the axial direction of the connecting column 901. When the marking lines of the rotating column 904 and the hexagonal block 903 are aligned with the marking lines on the connecting column 901, it can be said that the limiting hole 907 is aligned with the limiting column 906.

[0061] Please refer to Figure 2 The cross sections of the slide groove 12 and the slider 11 are both in a "convex" shape.

[0062] In this embodiment, the “convex”-shaped structure can effectively prevent the slider from being separated from the slide groove 12 .

[0063] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crystal removal and crystal bonding device, comprising an L-shaped plate (1), wherein swing arm mechanisms are installed on the upper and lower sides of the horizontal plate portion of the L-shaped plate (1), characterized in that: A downward pressing mechanism is installed on both sides of the vertical rod portion of the L-shaped plate (1), and a connecting unit (9) is installed on the inner side of the vertical plate portion of the L-shaped plate (1), and the connecting unit (9) is connected to the downward pressing mechanism via a spring (10); The swing arm mechanism is used to remove the LED chip, and the pressing mechanism is used to transfer the LED chip to a predetermined position for solidification; The connecting unit (9) is used to replace the spring (10).

2. The crystal removal and bonding device according to claim 1, characterized in that: The swing arm mechanism comprises: a reciprocating rotating motor (2), a limit plate (4), a sliding plate (5), a swing arm (6), a column (16), a protruding portion (17), a second movable groove (18) and a compression spring (19); The reciprocating rotating motor (2) is mounted on the top of the horizontal plate portion of the L-shaped plate (1); the output end of the reciprocating rotating motor (2) extends through the bottom of the horizontal plate portion of the L-shaped plate (1); the limit plate (4) is connected to the output end of the reciprocating rotating motor (2) via a rotating shaft and a coupling; the sliding plate (5) is connected to the bottom of the limit plate (4) in an up-and-down sliding manner; and the swing arm (6) is fixedly mounted on one side of the sliding plate (5); The column (16) is integrally formed at the bottom of the limiting plate (4) and extends from the top of the sliding plate (5) to the inside of the sliding plate (5); the protrusion (17) is integrally formed at the bottom end of the column (16); the second movable groove (18) is provided inside the sliding plate (5); and the second movable groove (18) is used for the protrusion (17) to slide up and down; The compression spring (19) is arranged between the top end of the protrusion (17) and the top end of the inner cavity of the second movable groove (18).

3. The crystal removal and crystal bonding device according to claim 2, characterized in that: The pressing mechanism comprises: a driving motor (3), a connecting block (7), a pressing plate (8), a sliding plate (11), a sliding groove (12), a bottom plate (13), a connecting plate (14) and a return spring (15); The drive motor (3) is mounted on the outside of the vertical plate portion of the L-shaped plate (1), and the output end of the drive motor (3) extends through the inside of the vertical plate portion of the L-shaped plate (1); the upper part of one side of the connecting block (7) is connected to the output end of the drive motor (3) via a rotating shaft and a coupling, and the limit plate (4) is fixedly mounted below the other side of the connecting block (7); The slide groove (12) is vertically opened on the inner side of the vertical plate portion of the L-shaped plate (1); a slider on one side of the slide plate (11) is slidably connected to the inner cavity of the slide groove (12) up and down; a connecting plate (14) is fixedly connected to the bottom end of the slide plate (11); and the top of the connecting plate (14) is rotatably connected to the bottom end of the sliding plate (5); A bottom plate (13) for sealing the bottom opening of the slide groove (12) is installed at the bottom end of the vertical plate portion of the L-shaped plate (1) by means of bolts. The return spring (15) is arranged in the inner cavity of the slide groove (12). The bottom end of the slide groove (12) contacts the top end of the bottom plate (13), and the top end of the slide groove (12) contacts the bottom end of the slider of the slide plate (11).

4. The crystal removal and crystal bonding device according to claim 3, characterized in that: The connection unit (9) is connected to the vertical plate portion of the L-shaped plate (1) via threads; The connection unit (9) comprises: a rotating unit, a docking unit and a fixing ring (902); the rotating unit comprises: a hexagonal block (903), a rotating column (904) and a screw head (905); The screw head (905) is formed at one end of the rotating column (904), the hexagonal block (903) is integrally formed at the other end of the outer wall of the rotating column (904), and a screw hole connected to the screw head (905) is provided on the vertical plate portion of the L-shaped plate (1).

5. The crystal removal and crystal bonding device according to claim 4, characterized in that: The docking unit comprises: a connecting column (901), a limiting column (906), a limiting hole (907), a limiting member (908) and a first movable groove (909); The connecting column (901) is located at an end of the rotating column (904) away from the screw head (905), the first movable groove (909) is opened inside the end of the connecting column (901) close to the rotating column (904), the limiting member (908) is integrally formed at an end of the rotating column (904) away from the screw head (905), and the limiting member (908) is movably connected to the inside of the first movable groove (909); One end of the rotating column (904) is integrally formed with outwardly protruding limiting columns (906) located on both sides of the limiting member (908), and one end of the connecting column (901) close to the rotating column (904) is provided with a limiting hole (907) for accommodating the limiting column (906).

6. The crystal removal and bonding device according to claim 5, characterized in that: There are four fixing rings (902), two of which are fixedly connected to one end of the connecting column (901), and the other two fixing rings (902) are located below the two sides, and the two ends of the two connecting blocks (7) are respectively hooked with the fixing ring (902) at one end of the connecting column (901) and the fixing ring (902) at the bottom of one side of the connecting block (7).

7. The crystal removal and crystal bonding device according to claim 3, characterized in that: The cross-sections of the slide groove (12) and the slider of the slide plate (11) are both in a "convex" shape.

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