Surface mounting device for SMT (Surface Mount Technology) surface mounting welding

Abstract

The utility model discloses a surface mounting device for SMT surface mounting welding, which comprises a mounting seat, the whole mounting seat is of a U-shaped structure, a conveying belt is arranged in the mounting seat, a deviation rectifying mechanism used for rectifying a PCB is arranged above the conveying belt in the mounting seat, a pressing and positioning mechanism used for fixing the PCB is arranged at the top of the deviation rectifying mechanism, and the pressing and positioning mechanism is arranged above the conveying belt. The top of the mounting base is fixedly connected with a fixing frame, the top of the fixing frame is provided with a linear module, the top of a movable sliding table of the linear module is fixedly provided with an electric telescopic rod, and the end part of a piston rod of the electric telescopic rod penetrates through the movable sliding table and is fixedly provided with a chip mounter main body; according to the surface mounting device for SMT surface mounting welding, the position of the to-be-mounted plate in the conveying process can be corrected, the to-be-mounted plate is made to adapt to and limit the movement of the to-be-mounted plate, better surface mounting is facilitated, the to-be-mounted plate can be fixed through the arrangement of the pressing and positioning mechanism, the position of the to-be-mounted plate is made to be stable, and more accurate surface mounting is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of patch devices, in particular to a patch device for SMT patch welding. Background Art

[0002] The placement machine is placed after the dispensing machine or screen printer in the production line. It is a device that accurately places surface mount components on the PCB pads by moving the placement head. It is divided into manual and fully automatic types. It is used to achieve high-speed and high-precision placement of components. For this purpose, a placement device for SMT patch welding is required.

[0003] The patch device for SMT patch welding is usually set on an operating table. It is necessary to manually place the PCB board on the operating table and fix it, and then perform the patch operation through the patch machine. However, the overall structure of the existing patch device is relatively fixed, and the patch part of the patch machine is not convenient for full contact with the surface of the PCB board, so that the patch position is limited, and manual continuous adjustment is required, which is time-consuming and labor-intensive, and the patch efficiency is also very low. In addition, after the PCB board is placed, the existing patch device is not convenient for adjusting the PCB board, which easily leads to the situation of patch misalignment. For this reason, we propose a patch device for SMT patch welding. Utility Model Content

[0004] The utility model aims to provide a patch device for SMT patch welding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a patch device for SMT patch welding, comprising a mounting seat, the mounting seat being in an overall U-shaped structure, and a conveyor belt being arranged inside the mounting seat, a correction mechanism for correcting a PCB board being arranged above the conveyor belt inside the mounting seat, a clamping and positioning mechanism for fixing the PCB board being arranged on the top of the correction mechanism, a fixing frame being fixedly connected to the top of the mounting seat, and a linear module being arranged on the top of the fixing frame, an electric telescopic rod being fixedly installed on the top of a moving slide of the linear module, and a patch machine body being fixedly installed on the piston rod end of the electric telescopic rod passing through the moving slide.

[0006] Preferably, the correction mechanism includes a connecting plate, a U-shaped plate and a guide roller. The tops of the two side walls corresponding to the mounting seat are provided with connecting grooves, and the connecting grooves are slidably connected with a connecting plate. One end of the connecting plate located inside the mounting seat is fixedly connected with a U-shaped plate, and guide rollers are equidistantly rotatably connected inside the U-shaped plate, and the guide rollers are arranged perpendicular to the conveyor belt.

[0007] Preferably, both ends of the bottom of the mounting seat are fixedly connected with a U-shaped seat, and two bidirectional screws are arranged in the two U-shaped seats, and the two ends of the bidirectional screw are rotatably connected to the inner walls of the two U-shaped seats respectively, a servo motor is fixedly installed at the end of the U-shaped seat, and the output shaft end of the servo motor passes through the U-shaped seat and is fixedly connected to the bidirectional screw, and sliding plates are slidably connected in the two U-shaped seats, and horizontal threaded holes are opened on both sides of the two sliding plates, and the two sliding plates are respectively threadedly connected to the two ends of the bidirectional screw.

[0008] Preferably, a limiting rod is symmetrically fixedly connected to the outside of the bidirectional screw in the U-shaped seat, and a limiting hole is symmetrically opened on the surface of the sliding plate outside the threaded hole. The limiting rod is slidably connected in the limiting hole, and the sliding plate is slidably connected to the outside of the limiting rod.

[0009] Preferably, the clamping and positioning mechanism includes an L-shaped fixing plate, an adjusting screw and a pressure plate. The tops of the two U-shaped plates are symmetrically fixedly connected with L-shaped fixing plates. The L-shaped fixing plates are located in a fixing frame. A vertical threaded hole is opened on the top of the L-shaped fixing plate, and an adjusting screw is threadedly connected in the threaded hole. The bottom of the adjusting screw is rotatably connected to a pressure plate through a bearing.

[0010] Preferably, a guide rod is symmetrically fixedly connected to the top of the pressure plate outside the adjusting screw, and the end of the guide rod slides through the L-shaped fixing plate.

[0011] Preferably, the conveyor belt is a horizontally arranged conveyor belt.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can correct the position of the board to be mounted during transportation through the setting of the correction mechanism, so that it can adapt to the movement of the board to be mounted and limit the position, which is convenient for better mounting. The board to be mounted can be fixed through the setting of the pressing and positioning mechanism, so that the position of the board to be mounted is stable, which is convenient for more accurate mounting.

[0014] 2. The utility model can control the horizontal movement of the patch machine body on the patch board through the setting of the linear module, and can realize the transportation of the patch board through the conveyor belt, which is convenient for large-scale patching of the patch board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3It is a schematic diagram of the structure of the enlarged view of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the enlarged view of point B of the utility model.

[0019] In the figure: 1. Mounting seat; 2. Conveyor belt; 3. Correction mechanism; 4. Pressing and positioning mechanism; 5. Linear module; 6. Electric telescopic rod; 7. SMT machine body; 8. U-shaped seat; 9. Bidirectional screw; 10. Servo motor; 11. Sliding plate; 12. Connecting plate; 13. Connecting groove; 14. U-shaped plate; 15. Guide roller; 16. Fixed frame; 17. L-shaped fixing plate; 18. Adjusting screw; 19. Pressing plate; 20. Guide rod; 21. Limit rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a patch device for SMT patch welding, including a mounting seat 1, the mounting seat 1 is an overall U-shaped structure, and a conveyor belt 2 is arranged in the mounting seat 1, and a correction mechanism 3 for correcting a PCB board is arranged above the conveyor belt 2 in the mounting seat 1, and a clamping positioning mechanism 4 for fixing the PCB board is arranged on the top of the correction mechanism 3.

[0022] It should be noted that, by setting up the deviation correction mechanism 3, the position of the board to be mounted during transportation can be corrected so that it can adapt to limiting the movement of the board to be mounted, facilitating better mounting. By setting up the clamping and positioning mechanism 4, the board to be mounted can be fixed so that the position of the board to be mounted is stable, facilitating more accurate mounting.

[0023] The top of the mounting base 1 is fixedly connected to a fixing frame 16, and a linear module 5 is arranged on the top of the fixing frame 16. An electric telescopic rod 6 is fixedly installed on the top of the movable slide of the linear module 5, and the piston rod end of the electric telescopic rod 6 passes through the movable slide and is fixedly installed with a placement machine body 7.

[0024] It should be noted that when the utility model is used, the device is connected to the previous step of PCB board processing, so that the PCB board is transported to the conveyor belt 2, and the PCB board is continuously transported by the conveyor belt 2. The device is provided with a sensor for monitoring the position of the patch board. During the transportation process, the control system provided in the device controls the servo motor 10 to work and rotate the bidirectional screw 9. Through the threaded connection between the two sliding plates 11 and the two ends of the bidirectional screw 9, the two sliding plates 11 are moved toward the direction of the conveyor belt 2. Under the push of the connecting plate 12, the U-shaped plate 14 is brought close to the PCB board, so that the position of the PCB board is centered and transported. When the patch board moves to the bottom of the patch machine body 7, the control system of the device controls the conveyor belt 2 to stop working, and then adjusts the pressure plate 19 to fix the position of the PCB board, and then patches the PCB board through the coordinated setting of the linear module 5, the electric telescopic rod 6 and the patch machine body 7. When it is necessary to patch other positions of the PCB board, the patch board can be moved by the conveyor belt 2 to achieve patching of other parts of the patch board. After the patching is completed, the patch board is continued to be transported by the conveyor belt 2. During the transportation process, the patch board after patching is moved in the air for a period of time to quickly solidify the patching position.

[0025] The correcting mechanism 3 includes a connecting plate 12, a U-shaped plate 14 and a guide roller 15. A connecting groove 13 is provided at the top of the corresponding two side walls of the mounting seat 1, and the connecting plate 12 is slidably connected in the connecting groove 13. One end of the connecting plate 12 located inside the mounting seat 1 is fixedly connected to the U-shaped plate 14, and the guide roller 15 is equidistantly rotatably connected in the U-shaped plate 14, and the guide roller 15 is vertically arranged to the conveyor belt 2.

[0026] It should be noted that by sliding the connecting plate 12 in the connecting groove 13, the position of the U-shaped plate 14 inside the U-shaped seat 8 can be controlled. The two U-shaped plates 14 are symmetrically arranged inside the mounting seat 1, and the patch board can be limited to move in the middle of the conveyor belt 2, thereby realizing the correction of the position of the patch board.

[0027] Both ends of the bottom of the mounting seat 1 are fixedly connected with U-shaped seats 8, and two bidirectional screws 9 are arranged in the two U-shaped seats 8. The two ends of the bidirectional screws 9 are respectively rotatably connected to the inner walls of the two U-shaped seats 8. A servo motor 10 is fixedly installed at the end of the U-shaped seat 8, and the output shaft end of the servo motor 10 passes through the U-shaped seat 8 and is fixedly connected to the bidirectional screw 9. Sliding plates 11 are slidably connected in the two U-shaped seats 8. Horizontal threaded holes are opened on both sides of the two sliding plates 11. The two sliding plates 11 are respectively threadedly connected to the two ends of the bidirectional screw 9.

[0028] It should be noted that the bidirectional screw 9 is rotated by controlling the servo motor 10, and the two sliding plates 11 are threadedly connected to the two ends of the bidirectional screw 9, so that the two sliding plates 11 move toward the conveyor belt 2, and the U-shaped plate 14 is pushed toward the PCB board under the action of the connecting plate 12.

[0029] A limiting rod 21 is symmetrically fixedly connected to the outside of the bidirectional screw 9 in the U-shaped seat 8, and a limiting hole is symmetrically opened on the surface of the sliding plate 11 outside the threaded hole. The limiting rod 21 is slidably connected in the limiting hole, and the sliding plate 11 is slidably connected to the outside of the limiting rod 21.

[0030] It should be noted that the threaded connection between the sliding plate 11 and the bidirectional screw 9 enables the sliding plate 11 to move in the U-shaped seat 8 , and the limiting rod 21 has a good limiting effect, ensuring the smooth sliding of the sliding plate 11 .

[0031] The clamping and positioning mechanism 4 includes an L-shaped fixing plate 17, an adjusting screw 18 and a pressing plate 19. The tops of the two U-shaped plates 14 are symmetrically fixedly connected with the L-shaped fixing plates 17. The L-shaped fixing plates 17 are located in the fixing frame 16. A vertical threaded hole is opened on the top of the L-shaped fixing plate 17, and the adjusting screw 18 is threadedly connected in the threaded hole. The bottom of the adjusting screw 18 is rotatably connected to the pressing plate 19 through a bearing.

[0032] It should be noted that when the patch board is moved to the bottom of the patch machine body 7, the control system of the device controls the conveyor belt 2 to stop working, and then adjusts the pressure plate 19 to fix the position of the PCB board, so as to facilitate the patch machine body 7 to perform high-quality patching on the patch board.

[0033] A guide rod 20 is symmetrically fixedly connected to the top of the pressure plate 19 outside the adjusting screw 18 , and the end of the guide rod 20 slides through the L-shaped fixing plate 17 .

[0034] It should be noted that the guide rod 20 is used to guide or limit the movement direction of the pressing plate 19 .

[0035] The conveyor belt 2 is a horizontally arranged conveyor belt.

[0036] It should be noted that the conveyor belt 2 is a conveyor belt used to transport the patch board. The horizontally arranged conveyor belt 2 can ensure that the patch board is in a horizontal position, which is convenient for better patching.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A patch device for SMT patch welding, comprising a mounting seat (1), characterized in that: The mounting seat (1) is in an overall U-shaped structure, and a conveyor belt (2) is arranged in the mounting seat (1); a correction mechanism (3) for correcting a PCB board is arranged above the conveyor belt (2) in the mounting seat (1); a clamping positioning mechanism (4) for fixing the PCB board is arranged on the top of the correction mechanism (3); a fixing frame (16) is fixedly connected to the top of the mounting seat (1), and a linear module (5) is arranged on the top of the fixing frame (16); an electric telescopic rod (6) is fixedly installed on the top of the moving slide of the linear module (5), and a patch machine body (7) is fixedly installed on the piston rod end of the electric telescopic rod (6) through the moving slide.

2. A patch device for SMT patch welding according to claim 1, characterized in that: The deviation correction mechanism (3) comprises a connecting plate (12), a U-shaped plate (14) and a guide roller (15); the top ends of the corresponding two side walls of the mounting seat (1) are provided with connecting grooves (13), and the connecting grooves (13) are slidably connected with the connecting plates (12); one end of the connecting plate (12) located inside the mounting seat (1) is fixedly connected with the U-shaped plate (14); the guide rollers (15) are equidistantly rotatably connected inside the U-shaped plate (14), and the guide rollers (15) are arranged perpendicular to the conveyor belt (2).

3. A patch device for SMT patch welding according to claim 2, characterized in that: Both ends of the bottom of the mounting seat (1) are fixedly connected with a U-shaped seat (8), and a bidirectional screw (9) is arranged in the two U-shaped seats (8), and the two ends of the bidirectional screw (9) are respectively rotatably connected to the inner walls of the two U-shaped seats (8), and a servo motor (10) is fixedly installed at the end of the U-shaped seat (8), and the output shaft end of the servo motor (10) passes through the U-shaped seat (8) and is fixedly connected to the bidirectional screw (9), and sliding plates (11) are slidably connected in the two U-shaped seats (8), and horizontal threaded holes are opened on both sides of the two sliding plates (11), and the two sliding plates (11) are respectively threadedly connected to the two ends of the bidirectional screw (9).

4. A patch device for SMT patch welding according to claim 3, characterized in that: A limiting rod (21) is symmetrically fixedly connected to the outside of the bidirectional screw rod (9) in the U-shaped seat (8); a limiting hole is symmetrically provided on the surface of the sliding plate (11) outside the threaded hole; the limiting rod (21) is slidably connected in the limiting hole; and the sliding plate (11) is slidably connected to the outside of the limiting rod (21).

5. The SMT patch welding device according to claim 2, characterized in that: The clamping and positioning mechanism (4) comprises an L-shaped fixing plate (17), an adjusting screw (18) and a pressing plate (19); the tops of the two U-shaped plates (14) are symmetrically fixedly connected with the L-shaped fixing plates (17); the L-shaped fixing plates (17) are located in the fixing frame (16); a vertical threaded hole is opened on the top of the L-shaped fixing plate (17); the adjusting screw (18) is threadedly connected in the threaded hole; the bottom of the adjusting screw (18) is rotatably connected with the pressing plate (19) via a bearing.

6. A patch device for SMT patch welding according to claim 5, characterized in that: The top of the pressure plate (19) is symmetrically fixedly connected to a guide rod (20) outside the adjusting screw rod (18), and the end of the guide rod (20) slides through the L-shaped fixing plate (17).

7. The SMT patch welding device according to claim 1, characterized in that: The conveyor belt (2) is a horizontally arranged conveyor belt.

Images