Printed circuit board element mounting equipment

Abstract

The utility model discloses a printed circuit board element mounting device, and particularly relates to the technical field of circuit board processing, which comprises a three-axis moving platform, eight fixing blocks are fixedly connected in the three-axis moving platform, rotating shafts are rotatably connected in the two fixing blocks on the front side and the two fixing blocks on the rear side, and the rotating shafts are connected in the three-axis moving platform. And fixing rods and a lifting assembly are fixedly connected into the two fixing blocks located on the left side and the two fixing blocks located on the right side correspondingly, and the lifting assembly comprises two first stepping motors fixedly connected to the left side and the right side of the bottom of the three-axis moving platform. According to the utility model, the three-axis mobile platform, the solder paste extruder, the camera and the air supply pipe are arranged, so that the device can automatically finish the work of solder paste smearing, surface mounting and heating reflow soldering on a PCB surface bonding pad, the device can realize complete automation, the situation that manual interference is still needed in the surface mounting process is avoided, and the production efficiency is improved. And the working efficiency of the device is improved, and further use by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a printed circuit board original component mounting device. Background Art

[0002] In today's electronics manufacturing industry, R&D engineers face a key challenge when verifying and testing PCB solutions: how to achieve a fast and reliable placement and soldering process while minimizing costs. Traditional surface mount processes, especially those outsourced, can significantly increase R&D costs and lead to long wait times and communication costs. On the other hand, manual soldering, while cost-effective, is not only inefficient but also prone to defective products, wasting valuable engineers' time.

[0003] Currently, existing devices usually use a stencil screen printing table, a small placement machine, and a reflow oven to work together to complete part of the placement process. However, the system still requires manual intervention during the placement process, and the placement head has a single function, which cannot achieve full automation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a printed circuit board original component placement device, which solves the problem that the system still needs manual intervention during the placement process and the placement head has a single function and cannot achieve full automation.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a printed circuit board original component placement device, comprising:

[0006] A three-axis mobile platform, wherein eight fixed blocks are fixedly connected to the three-axis mobile platform, wherein the two fixed blocks on the front side and the two fixed blocks on the rear side are rotatably connected to the rotating shaft, and the two fixed blocks on the left side and the two fixed blocks on the right side are fixedly connected to the fixing rod;

[0007] A lifting assembly, the lifting assembly comprising two first stepper motors fixedly connected to the left and right sides of the bottom of the three-axis mobile platform, the tops of the two first stepper motors are fixedly connected to a lead screw, and the two lead screws are externally threadedly connected to the same mobile platform;

[0008] A moving component, wherein the front top of the moving component is fixedly connected to a second stepping motor, the output end of the second stepping motor is fixedly connected to a first driving wheel, the first driving wheel is connected to a first driven wheel through a conveyor belt transmission, the first driven wheel is fixedly connected to the outside of the rotating shaft located on the front side, the left and right ends of the rotating shaft on the front side are fixedly connected to the second driving wheels, the two second driving wheels are respectively connected to the second driven wheels through two conveyor belts, the two second driven wheels are respectively fixedly connected to the left and right ends of the rotating shaft on the rear side, and the tops of the two conveyor belts on the left and right sides are fixedly connected to a moving seat.

[0009] As a further solution of the present invention: the two sides of the two moving seats that are close to each other are fixedly connected to the same slide rail, and a third stepper motor is fixedly connected to the top of the moving seat on the right side, and the third stepper motor is fixedly connected to the third driving wheel through the output shaft, and the third driving wheel is connected to two third driven wheels through a conveyor belt transmission, and the two third driven wheels are rotatably connected to the moving seat on the left side through a rotating shaft, and a mounting head is fixedly connected to the front side of the conveyor belt, and the bottom of the mounting head is slidably connected to the slide rail.

[0010] As a further solution of the present invention: a camera is fixedly connected to the front side of the placement head, and a feeder is fixedly connected to the front side of the placement head.

[0011] As a further solution of the present invention: a solder paste extruder is fixedly connected to the front side of the placement head, and an air supply duct is fixedly connected to the front side of the placement head.

[0012] As a further solution of the present invention: an air pump is fixedly connected to the bottom left side of the three-axis mobile platform, and a worm gear propulsion device is fixedly connected to the top front side of the three-axis mobile platform.

[0013] As a further solution of the present invention: the air pump is connected to the feeder through a connecting pipe, and the worm gear propulsion device is connected to the solder paste extruder through a connecting pipe.

[0014] As a further solution of the present invention: four sliding rods are fixedly connected inside the three-axis mobile platform, the mobile platform is slidably connected to the outside of the sliding rods, and the mobile seat is slidably connected to the outside of the fixed rods.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The printed circuit board original component placement equipment, through the cooperation of structures such as a three-axis mobile platform, a solder paste extruder and a worm gear propulsion device, enables the device to automatically complete the solder paste application, placement and heating reflow soldering of the PCB surface pads. While providing rich effects, the device can be fully automated, avoiding the need for manual intervention during the placement process, which not only improves the work efficiency of the device but also facilitates further use by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the connection structure between the second stepping motor and the first driving wheel of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the connection structure between the placement head and the solder paste extruder of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the connection structure between the mounting head and the camera of the utility model.

[0022] Description of reference numerals:

[0023] 1. Three-axis moving platform; 2. Fixed block; 3. Rotating axis; 4. Fixed rod; 5. First stepper motor; 6. Screw; 7. Moving platform; 8. Second stepper motor; 9. First driving wheel; 10. First driven wheel; 11. Second driving wheel; 12. Second driven wheel; 13. Moving seat; 14. Slide rail; 15. Third stepper motor; 16. Third driving wheel; 17. Third driven wheel; 18. Placement head; 19. Camera; 20. Feeder; 21. Solder paste extruder; 22. Air supply pipe; 23. Air pump; 24. Worm gear propulsion device; 25. Slide rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 4 A printed circuit board original component placement device shown includes:

[0026] A three-axis mobile platform 1, in which eight fixed blocks 2 are fixedly connected, and a rotating shaft 3 is rotatably connected to the two fixed blocks 2 on the front side and the two fixed blocks 2 on the rear side. By providing the fixed blocks 2, the fixed blocks 2 can support the rotating shaft 3 to avoid the rotating shaft 3 from being offset or misaligned during rotation, thereby ensuring the stable rotation of the rotating shaft 3. A fixed rod 4 is fixedly connected to the two fixed blocks 2 on the left side and the two fixed blocks 2 on the right side;

[0027] The lifting assembly includes two first stepper motors 5 fixedly connected to the left and right sides of the bottom of the three-axis mobile platform 1. The tops of the two first stepper motors 5 are fixedly connected to screw rods 6. The two screw rods 6 are externally threadedly connected to the same moving platform 7.

[0028] Moving component, the front top of the moving component is fixedly connected to the second stepping motor 8, the output end of the second stepping motor 8 is fixedly connected to the first driving wheel 9, the first driving wheel 9 is connected to the first driven wheel 10 through a conveyor belt transmission, the first driven wheel 10 is fixedly connected to the outside of the rotating shaft 3 on the front side, the left and right ends of the front rotating shaft 3 are fixedly connected to the second driving wheels 11, the two second driving wheels 11 are respectively connected to the second driven wheels 12 through two conveyor belts, the two second driven wheels 12 are respectively fixedly connected to the left and right ends of the rotating shaft 3 on the rear side, and the tops of the two conveyor belts on the left and right sides are fixedly connected to the moving seat 13.

[0029] The two sides of the two moving seats 13 that are close to each other are fixedly connected to the same slide rail 14. A third stepper motor 15 is fixedly connected to the top of the right moving seat 13. The third stepper motor 15 is fixedly connected to a third driving wheel 16 through an output shaft. The third driving wheel 16 is connected to two third driven wheels 17 through a conveyor belt transmission. The two third driven wheels 17 are both rotatably connected to the moving seat 13 on the left through a rotating shaft. A mounting head 18 is fixedly connected to the front side of the conveyor belt. The bottom of the mounting head 18 is slidably connected to the slide rail 14. A camera 19 is fixedly connected to the front side of the mounting head 18. A feeder 20 is fixedly connected to the front side of the mounting head 18. A solder paste extruder 21 is fixedly connected to the front side, an air supply pipe 22 is fixedly connected to the front side of the placement head 18, an air pump 23 is fixedly connected to the left bottom of the three-axis mobile platform 1, and a worm gear propulsion device 24 is fixedly connected to the front top of the three-axis mobile platform 1. The air pump 23 is connected to the feeder 20 through a connecting pipe, and the worm gear propulsion device 24 is connected to the solder paste extruder 21 through a connecting pipe. Four sliding rods 25 are fixedly connected to the three-axis mobile platform 1. By setting the sliding rods 25, the sliding rods 25 can prevent the movable platform 7 from rotating due to the influence of the rotation of the screw 6 during the up and down movement, thereby ensuring the stable movement of the movable platform 7;

[0030] The movable platform 7 is connected to the outside of the slide rod 25 through sliding, and the movable seat 13 is connected to the outside of the fixed rod 4 through sliding. By setting the fixed rod 4, the fixed rod 4 can support the movable seat 13, avoiding the displacement and misalignment of the movable seat 13 during the movement, thereby ensuring the stable movement of the movable seat 13.

[0031] The working principle of this utility model is:

[0032] First, fix the PCB on the three-axis mobile platform 1, and control the movement of the camera 19 through the three-axis mobile platform 1 to find the physical coordinates of the PCB. After determining the position of the completed PCB, import the pre-prepared PCB pad position coordinates, and then start the second stepper motor 8 to drive the first active wheel 9 to rotate, and then drive the first driven wheel 10 and the rotating shaft 3 and the two second active wheels 11 on the front side to rotate synchronously through the conveyor belt, and then drive the rotating shaft 3 and the two second driven wheels 12 on the rear side to rotate synchronously through the conveyor belt, and the two conveyor belts can drive the two moving seats 13 to slide back and forth outside the fixed rod 4. When the third stepper motor 15 is started, the third stepper motor 15 drives the third active wheel 16 to rotate, and drives the two third driven wheels 17 to rotate through the conveyor belt, so that the placement head 18 drives the camera 19 and the feeder 20 to rotate synchronously. The three-axis mobile platform 1 cooperates with the camera 19 to find the designated component position, and then controls the first stepper motor 5. The two first stepper motors 5 drive the two lead screws 6 to rotate synchronously, so that the moving platform 7 rises and slides upward outside the slide bar 25. Then the air pump 23 is started. The air pump 23 can suck up the components and transport them to the designated pads. The reciprocating operation is performed until the surface mounting work is completed. Finally, the external hot air gun is started to send the hot air to the corresponding pad position through the air supply pipe 22 to complete the heating and melting of the solder paste. This process also requires the three-axis mobile platform 1 to control the precise movement of the air supply pipe 22.

[0033] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A printed circuit board original placement equipment, characterized in that: include: A three-axis mobile platform (1), wherein eight fixed blocks (2) are fixedly connected inside the three-axis mobile platform (1), two fixed blocks (2) located at the front side and two fixed blocks (2) located at the rear side are both rotatably connected to a rotating shaft (3), and two fixed blocks (2) located at the left side and two fixed blocks (2) located at the right side are both fixedly connected to a fixed rod (4); A lifting assembly, the lifting assembly comprising two first stepper motors (5) fixedly connected to the left and right sides of the bottom of the three-axis mobile platform (1), the tops of the two first stepper motors (5) are fixedly connected to screw rods (6), and the two screw rods (6) are externally threadedly connected to the same mobile platform (7); A moving component, wherein a second stepper motor (8) is fixedly connected to the top of the front side of the moving component, an output end of the second stepper motor (8) is fixedly connected to a first driving wheel (9), the first driving wheel (9) is connected to a first driven wheel (10) through a conveyor belt transmission, the first driven wheel (10) is fixedly connected to the outside of a rotating shaft (3) located at the front side, the left and right ends of the rotating shaft (3) located at the front side are fixedly connected to second driving wheels (11), the two second driving wheels (11) are respectively connected to second driven wheels (12) through two conveyor belts, the two second driven wheels (12) are respectively fixedly connected to the left and right ends of the rotating shaft (3) located at the rear side, and the tops of the two conveyor belts located at the left and right sides are fixedly connected to a moving seat (13).

2. A printed circuit board original mounting device according to claim 1, characterized in that: The two sides of the two moving seats (13) close to each other are fixedly connected with a same slide rail (14); the top of the moving seat (13) on the right side is fixedly connected with a third stepper motor (15); the third stepper motor (15) is fixedly connected with a third driving wheel (16) via an output shaft; the third driving wheel (16) is connected with two third driven wheels (17) via a conveyor belt transmission; the two third driven wheels (17) are both rotatably connected in the moving seat (13) on the left side via a rotating shaft; the front side of the conveyor belt is fixedly connected with a mounting head (18); the bottom of the mounting head (18) is slidably connected in the slide rail (14).

3. A printed circuit board original mounting device according to claim 2, characterized in that: A camera (19) is fixedly connected to the front side of the mounting head (18), and a feeder (20) is fixedly connected to the front side of the mounting head (18).

4. A printed circuit board original mounting device according to claim 2, characterized in that: A solder paste extruder (21) is fixedly connected to the front side of the mounting head (18), and an air supply pipe (22) is fixedly connected to the front side of the mounting head (18).

5. The printed circuit board original mounting device according to claim 1, characterized in that: An air pump (23) is fixedly connected to the left bottom of the three-axis mobile platform (1), and a worm gear propulsion device (24) is fixedly connected to the front top of the three-axis mobile platform (1).

6. A printed circuit board original mounting device according to claim 5, characterized in that: The air pump (23) is connected to the feeder (20) through a connecting pipe, and the worm gear propulsion device (24) is connected to the solder paste extruder (21) through a connecting pipe.

7. The printed circuit board original mounting equipment according to claim 1, characterized in that: Four sliding rods (25) are fixedly connected inside the three-axis mobile platform (1), the mobile platform (7) is slidably connected to the outside of the sliding rods (25), and the mobile seat (13) is slidably connected to the outside of the fixed rod (4).

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