Multidirectional automatic dispensing device for circuit board

Abstract

The utility model provides a multidirectional automatic dispensing device for a circuit board, which comprises a dispensing assembly, and the dispensing assembly comprises a mounting frame, a servo motor, a mounting seat, a screw rod, two guide rods, a limiting frame, a dispensing pipe, a sliding seat, a distance sensor, two mounting rings and a controller, and the mounting seat is fixedly connected to the rear surface of the mounting frame. Through the cooperation of the first linear motor and the second linear motor, the glue dispensing assembly can be driven to move, then all-directional glue dispensing of a circuit board is achieved, the servo motor drives the lead screw to rotate, the sliding seat drives the glue dispensing pipe to move downwards, and in the moving process, the glue dispensing assembly is driven to move. The distance between the glue dispensing needle and the circuit board is monitored in real time through the distance sensor, when a rated value is reached, the distance sensor sends a signal to the controller, the controller controls the servo motor to stop working, the glue dispensing distance is monitored through the distance sensor, the glue dispensing precision and quality are guaranteed, and glue can accurately fall to a preset position.

Description

Technical Field

[0001] The utility model relates to a dispensing device, in particular to a multi-directional automatic dispensing device for circuit boards, belonging to the technical field of circuit board processing. Background Technique

[0002] Circuit board dispensing is a process widely used in the electronic manufacturing process, also known as glue application, coating, potting, drop dispensing, etc. This process mainly involves applying, potting, or dripping electronic glue, oil, or other liquids onto the circuit board to achieve various functions such as adhesion, potting, insulation, fixation, and smooth surface.

[0003] When dispensing, a dispensing machine is generally used for the dispensing operation. The selection of the pressure of the dispensing machine should be determined according to the quality of the glue and the working environment temperature. Excessive pressure is likely to cause too much glue volume, while too little pressure will result in intermittent dispensing.

[0004] It is known that the Chinese publicly authorized patent (Publication No.: CN220547190U) discloses an electronic circuit board dispensing device. By adopting a sliding plate structure, the sliding plate enables the circuit board to still move back and forth after being fixed by the clamping strip, and the circuit board can be quickly moved below the dispensing structure. At the same time, by moving the dispensing structure, the docking between the two can be realized, accelerating the docking of the dispensing position and improving the dispensing efficiency;

[0005] By moving the circuit board and the dispensing mechanism, the multi-directional automatic dispensing operation of the circuit board is realized. However, it cannot adjust the distance between the dispensing needle and the circuit board as needed, which will directly affect the dispensing accuracy. If the distance is too close, the glue may overflow to the unnecessary area, causing pollution or short circuit of the circuit board. On the contrary, if the distance is too far, the glue may not accurately fall on the predetermined position. Therefore, a multi-directional automatic dispensing device for circuit boards is proposed. Summary of the Utility Model

[0006] In view of this, the utility model provides a multi-directional automatic dispensing device for circuit boards to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the embodiment of the utility model is realized as follows: A multi-directional automatic dispensing device for circuit boards includes a dispensing assembly. The dispensing assembly includes a mounting frame, a servo motor, a mounting seat, a lead screw, two guide rods, a limit frame, a dispensing tube, a sliding seat, a distance sensor, two mounting rings, and a controller;

[0008] The mounting base is fixedly connected to the rear surface of the mounting frame. The sliding seat is slidably connected to the inner side wall of the mounting frame. Both ends of the two guide rods are symmetrically and fixedly connected to the inner top wall and the inner bottom wall of the mounting frame. The bottom end of the screw rod is rotatably connected to the inner bottom wall of the mounting frame. The top end of the screw rod is fixedly connected to the output shaft of the servo motor. The dispensing tube is fixedly connected to the front surface of the sliding seat through a limiting frame. The two mounting rings are fixedly connected to the outer side wall of the dispensing tube by bolts. The distance sensor is mounted on the outer side wall of the dispensing tube through one mounting ring. The controller is mounted on one side of the mounting frame.

[0009] Further preferably, the sliding seat is threadedly connected to the outer side wall of the screw rod, and the sliding seat is slidably connected to the outer side walls of the two guide rods.

[0010] Further preferably, the servo motor is mounted on the upper surface of the mounting frame, and a dispensing needle is provided at the bottom of the dispensing tube.

[0011] Further preferably, a temperature sensor and a pressure sensor are mounted on the outer side wall of the dispensing tube, and a display screen is mounted on one side of the mounting frame.

[0012] Further preferably, the signal sending ends of the temperature sensor, the distance sensor and the pressure sensor are all connected to the signal receiving end of the display screen.

[0013] Further preferably, a moving assembly is mounted on the lower surface of the mounting base. The moving assembly includes a frame, two first linear motors and a second linear motor.

[0014] The two first linear motors are symmetrically mounted inside the frame, and the second linear motor is mounted on the movers of the two first linear motors.

[0015] Further preferably, the mounting base is mounted on the mover of the second linear motor.

[0016] Further preferably, a circuit board placement table is mounted on the inner bottom wall of the frame, and the position of the circuit board placement table corresponds to the position of the dispensing tube.

[0017] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages: Through the cooperation of the first linear motor and the second linear motor, the present utility model can drive the dispensing assembly to move, thereby realizing multi-directional dispensing of the circuit board. By driving the lead screw to rotate with the servo motor, the sliding seat drives the dispensing tube to move downward, thereby realizing the adjustment of the dispensing distance. During the movement, the distance between the dispensing needle and the circuit board is monitored in real time by the distance sensor. When the rated value is reached, the distance sensor sends a signal to the controller, and the controller controls the servo motor to stop working. At this time, the dispensing operation can be carried out. By monitoring the dispensing distance with the distance sensor, the accuracy and quality of the dispensing are guaranteed, so that the glue can accurately fall to the predetermined position.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a structural diagram of the present utility model;

[0021] Figure 2 It is a schematic diagram of the connection between the mounting seat and the second linear motor of the present utility model;

[0022] Figure 3 It is a structural diagram of the dispensing assembly of the present utility model;

[0023] Figure 4 It is a schematic diagram of the connection between the distance sensor and the dispensing tube of the present utility model;

[0024] Figure 5 It is a schematic diagram of the connection between the mounting seat and the mounting frame of the present utility model.

[0025] Reference numerals: 101, dispensing assembly; 11, mounting bracket; 12, servo motor; 13, display screen; 14, mounting base; 15, lead screw; 16, guide rod; 17, limiting bracket; 18, dispensing tube; 19, sliding seat; 20, pressure sensor; 21, temperature sensor; 22, distance sensor; 23, mounting ring; 24, controller; 301, moving assembly; 31, frame; 32, first linear motor; 33, second linear motor; 34, circuit board placement table. Detailed implementation manners

[0026] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0028] As Figures 1-5 shown, an embodiment of the present invention provides a multi-directional automatic dispensing device for a circuit board, including a dispensing assembly 101. The dispensing assembly 101 includes a mounting bracket 11, a servo motor 12, a mounting base 14, a lead screw 15, two guide rods 16, a limiting bracket 17, a dispensing tube 18, a sliding seat 19, a distance sensor 22, two mounting rings 23, and a controller 24.

[0029] The mounting base 14 is fixedly connected to the rear surface of the mounting bracket 11. The sliding seat 19 is slidably connected to the inner side wall of the mounting bracket 11. The two ends of the two guide rods 16 are symmetrically and fixedly connected to the inner top wall and the inner bottom wall of the mounting bracket 11. The bottom end of the lead screw 15 is rotatably connected to the inner bottom wall of the mounting bracket 11. The top end of the lead screw 15 is fixedly connected to the output shaft of the servo motor 12. The dispensing tube 18 is fixedly connected to the front surface of the sliding seat 19 through the limiting bracket 17. The two mounting rings 23 are fixedly connected to the outer side wall of the dispensing tube 18 by bolts. The distance sensor 22 is mounted on the outer side wall of the dispensing tube 18 through one mounting ring 23. The controller 24 is mounted on one side of the mounting bracket 11.

[0030] In one embodiment, the sliding seat 19 is threadedly connected to the outer side wall of the lead screw 15. The sliding seat 19 is slidably connected to the outer side walls of the two guide rods 16. The servo motor 12 is mounted on the upper surface of the mounting bracket 11. A dispensing needle is provided at the bottom of the dispensing tube 18. The bottom end of the dispensing needle is flush with the bottom end of the distance sensor 22. By driving the lead screw 15 to rotate through the servo motor 12, the lead screw 15 drives the sliding seat 19 through the thread, and thus the distance between the dispensing needle and the circuit board can be adjusted.

[0031] In one embodiment, a temperature sensor 21 and a pressure sensor 20 are mounted on the outer sidewall of the dispensing tube 18, and a display screen 13 is mounted on one side of the mounting bracket 11. The temperature of the glue can be monitored through the temperature sensor 21, and the dispensing pressure can be monitored through the pressure sensor 20.

[0032] In one embodiment, the signal sending ends of the temperature sensor 21, the distance sensor 22, and the pressure sensor 20 are all connected to the signal receiving end of the display screen 13. Through the display screen 13, the dispensing temperature data, the dispensing pressure data, and the height data of the dispensing needle can be displayed;

[0033] The model of the temperature sensor 21 is: pt100, the model of the distance sensor 22 is: KSC02, the model of the pressure sensor 20 is: BK-2088, and the model of the controller 24 is: OHR-PR10.

[0034] In one embodiment, a moving assembly 301 is mounted on the lower surface of the mounting base 14. The moving assembly 301 includes a frame 31, two first linear motors 32, and a second linear motor 33;

[0035] The two first linear motors 32 are symmetrically mounted inside the frame 31. The second linear motor 33 is mounted on the movers of the two first linear motors 32. The mounting base 14 is mounted on the mover of the second linear motor 33. A circuit board placement table 34 is mounted on the inner bottom wall of the frame 31. The position of the circuit board placement table 34 corresponds to the position of the dispensing tube 18. Through the cooperation of the first linear motor 32 and the second linear motor 33, all-round dispensing of the circuit board can be achieved.

[0036] When the present utility model is working: The circuit board is mounted on the circuit board placement table 34. Through the cooperation of the first linear motor 32 and the second linear motor 33, the dispensing assembly 101 can be driven to move, so that the dispensing tube 18 moves to directly above the circuit board. The servo motor 12 drives the lead screw 15 to rotate. The lead screw 15 drives the sliding seat 19 to slide through the thread. The sliding seat 19 moves downward along the guide rod 16. The sliding seat 19 drives the dispensing tube 18 to move downward. During the movement, the distance between the dispensing needle and the circuit board is monitored in real time through the distance sensor 22. When the rated value is reached, the distance sensor 22 sends a signal to the controller 24, and the controller 24 controls the servo motor 12 to stop working. At this time, dispensing operation can be carried out. The glue flows out from the dispensing needle at the bottom of the dispensing tube 18 onto the circuit board. During the dispensing process, the dispensing pressure and the glue temperature can be monitored in real time through the pressure sensor 20 and the temperature sensor 21, and then displayed through the display screen 13 for the staff to understand the dispensing data.

[0037] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims described above.

Claims

1. An automatic multi-directional dispensing device for a circuit board, comprising a dispensing assembly (101), characterized in that: The dispensing assembly (101) includes a mounting frame (11), a servo motor (12), a mounting seat (14), a lead screw (15), two guide rods (16), a limit frame (17), a dispensing tube (18), a sliding seat (19), a distance sensor (22), two mounting rings (23), and a controller (24); The mounting seat (14) is fixedly connected to the rear surface of the mounting frame (11), the sliding seat (19) is slidably connected to the inner side wall of the mounting frame (11), both ends of the two guide rods (16) are symmetrically and fixedly connected to the inner top wall and the inner bottom wall of the mounting frame (11), the bottom end of the lead screw (15) is rotatably connected to the inner bottom wall of the mounting frame (11), the top end of the lead screw (15) is fixedly connected to the output shaft of the servo motor (12), the dispensing tube (18) is fixedly connected to the front surface of the sliding seat (19) through the limit frame (17), the two mounting rings (23) are fixedly connected to the outer side wall of the dispensing tube (18) by bolts, the distance sensor (22) is mounted on the outer side wall of the dispensing tube (18) through one mounting ring (23), and the controller (24) is mounted on one side of the mounting frame (11).

2. The multi-directional automatic dispensing device for circuit boards according to claim 1, characterized in that: The sliding seat (19) is threadedly connected to the outer side wall of the lead screw (15), and the sliding seat (19) is slidably connected to the outer side walls of the two guide rods (16).

3. The multi-directional automatic dispensing device for circuit boards according to claim 2, characterized in that: The servo motor (12) is mounted on the upper surface of the mounting frame (11), and a dispensing needle is provided at the bottom of the dispensing tube (18).

4. The multi-directional automatic dispensing device for circuit boards according to claim 3, characterized in that: A temperature sensor (21) and a pressure sensor (20) are mounted on the outer side wall of the dispensing tube (18), and a display screen (13) is mounted on one side of the mounting frame (11).

5. The multi-directional automatic dispensing device for circuit boards according to claim 4, wherein: The signal sending ends of the temperature sensor (21), the distance sensor (22), and the pressure sensor (20) are all connected to the signal receiving end of the display screen (13).

6. The multi-directional automatic dispensing device for circuit boards according to claim 5, characterized in that: A moving assembly (301) is mounted on the lower surface of the mounting seat (14), and the moving assembly (301) includes a frame (31), two first linear motors (32), and a second linear motor (33); The two first linear motors (32) are symmetrically mounted inside the frame (31), and the second linear motor (33) is mounted on the movers of the two first linear motors (32).

7. An automatic multi-directional dispensing device for circuit boards according to claim 6, characterized in that: The mounting seat (14) is mounted on the mover of the second linear motor (33).

8. An automatic multi-directional dispensing device for circuit boards according to claim 7, characterized in that: A circuit board placement table (34) is mounted on the inner bottom wall of the frame (31), and the position of the circuit board placement table (34) corresponds to the position of the dispensing tube (18).

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