PCB board reflow furnace rear end plate picking device

Abstract

The utility model discloses a kind of PCB board reflow furnace rear end pick plate device, including support, conveying roller mechanism, roof mechanism, grab plate mechanism, grab plate X-axis moving mechanism, grab plate lifting mechanism, conveying roller mechanism is arranged at the rear end of reflow furnace to receive PCB board from the rear end of reflow furnace.The utility model proposes a kind of PCB board reflow furnace rear end pick plate device, realizes the sorting of different size and specification PCB board, does not exert pressure to PCB board, effectively protects PCB board body and electronic component in PCB board sorting process, while flexible arrangement can be aimed at factory space, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for PCB board production, specifically a PCB board reflow oven back-end board picking device. Background Technology

[0002] A PCB reflow oven is a key piece of equipment in surface mount technology (SMT) used to solder electronic components onto PCBs. Its working principle involves heating the PCB to melt the solder paste pre-coated on the PCB pads, achieving electrical and mechanical connections between the components and the PCB. Currently, PCBs exiting reflow ovens are manually sorted and picked up. The back end of the reflow oven is in a high-temperature environment, which is not only physically demanding but also causes discomfort for workers. Furthermore, manual operation requires wearing heat-resistant gloves. Hands touching the PCB surface components during handling can easily damage SMT components due to pressure.

[0003] In response to the above issues, Chinese utility model patent application number CN202322871085.8 discloses a PCB reflow oven backend sorting and picking device. It achieves PCB board transfer by setting a top plate mechanism at the lower part of the PCB conveyor roller to lift the PCB board, and setting a gripping mechanism, gripping lifting mechanism, X-axis moving mechanism, and Y-axis moving mechanism at the upper part of the conveyor roller. However, it has the following problems: 1. The gripper is a straight plate, gripping the PCB board through the gripping force between the gripper and the PCB board. Because the PCB board is thin, it is difficult for it to withstand a large gripping force. After gripping and lifting, the PCB board is prone to slipping, resulting in defective products; 2. The tracked moving mechanism can only fix the displacement. For PCB boards of different sizes and specifications, the moving distance is usually not fixed, making precise transfer impossible; 3. The conveyor roller has a smooth roller structure, but after the PCB reflow oven, electronic components are pasted or soldered onto the PCB board. These electronic components are higher than the PCB board surface, and the smooth roller can easily jam the electronic components, causing the PCB board to fail to be transferred or the electronic components to be damaged. Utility Model Content

[0004] The purpose of this invention is to provide a PCB board reflow oven back-end board picking device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A PCB reflow oven rear-end board picking device includes a support, a conveyor roller mechanism, a top plate mechanism, a board gripping mechanism, a board gripping X-axis moving mechanism, and a board gripping lifting mechanism. The conveyor roller mechanism is located at the rear end of the reflow oven to receive PCB boards from the rear end of the reflow oven, wherein:

[0007] The conveyor roller mechanism includes a conveyor roller motor and several conveyor rollers, with the conveyor roller motor used to drive the conveyor rollers to rotate.

[0008] The top plate mechanism is located below the conveyor roller. The top plate mechanism includes a top plate translation mechanism, a top plate lifting mechanism, a top plate frame, and several top plates. The top plates are fixedly mounted on the top plate frame. The top plate frame translates along the X-axis through the top plate translation mechanism and lifts along the Z-axis through the top plate lifting mechanism.

[0009] The gripping mechanism includes a gripping motor, a drive wheel, a driven wheel, a conveyor belt, two gripping plates, and two gripping frames. The gripping motor is connected to the drive wheel, which is connected to the driven wheel via the conveyor belt. The two gripping plates are fixedly mounted on the gripping frames, which are connected to the conveyor belt. When the motor rotates forward, the two gripping plates move towards each other to complete the gripping action. When the motor rotates in reverse, the two gripping plates move away from each other to create a distance, thus enabling the gripping action of PCB boards of different sizes and specifications. Compared with a tracked gripping mechanism, it can achieve stepless displacement adjustment. Several hooks are fixedly mounted on the lower part of the gripping plates, with gaps between the hooks to support the PCB board, thus eliminating the need to apply gripping pressure to the PCB board and protecting it.

[0010] The gripper lifting mechanism is a two-stage lifting structure, consisting of a primary lifting motor and a secondary lifting motor. The primary lifting motor is fixedly mounted on the power output shaft of the secondary lifting motor via a motor mount. The secondary lifting motor is fixedly mounted on the gripper X-axis moving mechanism, and the power output shaft of the primary lifting motor is fixedly connected to the gripper mechanism. After the gripping action is completed, the primary lifting motor can quickly grip the PCB board away from the conveyor roller, and then the secondary lifting mechanism lifts the PCB board to the required transfer height. The primary lifting motor enables rapid gripping and removal of the PCB board, while the secondary lifting motor completes the lifting, improving work efficiency.

[0011] The grab plate X-axis moving mechanism is fixedly mounted on the bracket to complete the X-axis movement of the secondary lifting motor and the grab plate mechanism.

[0012] This invention is further improved by having several disc-shaped baffles evenly spaced on the roller shaft of the conveyor roller. The PCB board body is placed flat on the disc-shaped baffles, and the electronic components on the PCB board are located in the gap between two disc-shaped baffles to protect the electronic components. Even if some electronic components on the PCB board are stuck on the disc-shaped baffles, they will automatically adjust to the gap under the drive of the conveyor roller itself.

[0013] A further improvement to this invention is that it also includes a PCB board placement rack, which is disposed on either side of the conveyor roller.

[0014] This utility model is further improved by setting two sets of the gripping mechanism, the gripping X-axis moving mechanism, and the gripping lifting mechanism, and two sets of PCB board placement racks. The two sets of PCB board placement racks are set on the same side or both sides of the conveyor roller. The gripping plates of the two sets of gripping mechanisms are different in size and specifications to expand the gripping range of this device. At the same time, the PCB board placement racks can be flexibly arranged according to the factory space layout to adapt to different factory space layouts.

[0015] The PCB board reflow oven back-end picking device proposed in this utility model realizes the sorting of PCB boards of different sizes and specifications without applying pressure to the PCB boards. It effectively protects the PCB board body and electronic components during the PCB board sorting process, and can be flexibly arranged according to the factory space, making it highly adaptable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a PCB board reflow oven back-end board picking device proposed in this utility model.

[0017] Figure 2 for Figure 1 A structural diagram from another angle.

[0018] Figure 3 for Figure 2 A schematic diagram of the structure after removing part of the shell.

[0019] Figure 4 for Figure 3 A schematic diagram of the structure after removing some parts.

[0020] Figure 5 for Figure 4 A schematic diagram of the structure after removing some parts.

[0021] Figure 6 for Figure 5 Enlarged structural diagram of section A in the middle.

[0022] Figure 7 for Figure 5 A schematic diagram of the structure from another angle after removing some parts.

[0023] Figure 8 for Figure 5 A schematic diagram of the structure after removing some parts.

[0024] Figure 9 This is a schematic diagram of the PCB board structure on the conveyor roller.

[0025] Figure 10 This is a schematic diagram of another layout of the PCB board reflow oven back-end board picking device proposed in this utility model. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figure 1-10 A PCB reflow oven rear-end picking device includes a support 1, a conveyor roller mechanism 2, a top plate mechanism 3, a gripping mechanism 4, a gripping X-axis moving mechanism 5, and a gripping lifting mechanism 6. The conveyor roller mechanism 2 is located at the rear end of the reflow oven to receive PCBs 8 from the rear end of the reflow oven, wherein:

[0028] The conveyor roller mechanism 2 includes a conveyor roller motor and several conveyor rollers 21. The conveyor roller motor is used to drive the conveyor rollers 21 to rotate.

[0029] The top plate mechanism 3 is located below the conveyor roller 21. The top plate mechanism 3 includes a top plate translation mechanism 31, a top plate lifting mechanism 32, a top plate frame 33, and several top plates 34. The top plates 34 are fixedly mounted on the top plate frame 33. The top plate frame 33 translates along the X-axis through the top plate translation mechanism 31 and lifts along the Z-axis through the top plate lifting mechanism 32.

[0030] The gripping mechanism 4 includes a gripping motor 41, a drive wheel 42, a driven wheel 43, a conveyor belt 44, two gripping plates 45, and two gripping frames 46. The gripping motor 41 is connected to the drive wheel 42, which is connected to the driven wheel 43 via the conveyor belt 44. The two gripping plates 45 are fixedly mounted on the gripping frames 46, which are connected to the conveyor belt 44. When the motor rotates forward, the two gripping plates 45 move towards each other to complete the gripping action. When the motor rotates in reverse, the two gripping plates 45 move away from each other to create a distance, thus enabling the gripping action of PCB boards 8 of different sizes and specifications. Compared with the tracked gripping mechanism 4, it can achieve stepless displacement adjustment. Several hooks 47 are fixedly mounted on the lower part of the gripping plate 45, with gaps between the hooks 47 to support the PCB board 8. This eliminates the need to apply gripping pressure to the PCB board 8, protecting it.

[0031] The gripper lifting mechanism 6 is a two-stage lifting structure, including a primary lifting motor 61 and a secondary lifting motor 62. The primary lifting motor 61 is fixedly mounted on the power output shaft of the secondary lifting motor 62 via a motor mount. The secondary lifting motor 62 is fixedly mounted on the gripper X-axis moving mechanism 5. The power output shaft of the primary lifting motor 61 is fixedly connected to the gripper mechanism 4. After the gripper 45 completes its movement, the primary lifting motor 61 can quickly grip the PCB board 8 away from the conveyor roller 21, and then the secondary lifting mechanism lifts the PCB board 8 to the required transfer height. The primary lifting motor 61 enables rapid gripping and removal of the PCB board 8, while the secondary lifting motor 62 completes the lifting, improving work efficiency.

[0032] The gripper plate X-axis moving mechanism 5 is fixedly mounted on the bracket 1 to complete the X-axis movement of the secondary lifting motor 62 and the gripper plate mechanism 4.

[0033] This utility model is further improved by having several disc-shaped baffles 22 evenly spaced on the roller shaft of the conveyor roller 21. The main body of the PCB board 8 is placed flat on the disc-shaped baffles 22, and the electronic components on the PCB board 8 are located in the gap between two disc-shaped baffles 22 to protect the electronic components. Even if some electronic components on the PCB board 8 are stuck on the disc-shaped baffles 22, they will adjust themselves to the gap under the drive of the conveyor roller 21 itself.

[0034] The present invention is further improved by including a PCB board placement rack 7, which is disposed on any side of the conveyor roller 21.

[0035] This utility model is further improved by setting two sets of gripping plate mechanism 4, gripping plate X-axis moving mechanism 5, and gripping plate lifting mechanism 6, and two sets of PCB board placement rack 7. The two sets of PCB board placement rack 7 are set on the same side or both sides of the conveyor roller 21. The gripping plates 45 of the two sets of gripping plate mechanisms 4 are different in size and specifications to expand the range of gripping plates 45 of this device. At the same time, the PCB board placement rack 7 can be flexibly arranged according to the factory space layout to adapt to different factory space layouts.

[0036] The PCB board reflow oven back-end picking device proposed in this utility model realizes the sorting of PCB boards of different sizes and specifications without applying pressure to the PCB boards. It effectively protects the PCB board body and electronic components during the PCB board sorting process, and can be flexibly arranged according to the factory space, making it highly adaptable.

[0037] It should be noted that, for the sake of brevity and to highlight the innovation of this patent, conventional connections, such as the connection between the conveyor roller motor and the conveyor roller, are not specifically described, such as those that can be achieved through chain drive, belt drive, gear drive, etc.; some conventional components, such as the housing, are not described; and the placement of components in existing technologies, such as controllers and industrial cameras, is not described.

[0038] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PCB reflow oven rear-end board picking device, comprising a support, a conveyor roller mechanism, a top plate mechanism, a board gripping mechanism, a board gripping X-axis moving mechanism, and a board gripping lifting mechanism, wherein the conveyor roller mechanism is disposed at the rear end of the reflow oven to receive PCB boards from the rear end of the reflow oven, characterized in that: The conveyor roller mechanism includes a conveyor roller motor and several conveyor rollers, with the conveyor roller motor used to drive the conveyor rollers to rotate. The top plate mechanism is located below the conveyor roller. The top plate mechanism includes a top plate translation mechanism, a top plate lifting mechanism, a top plate frame, and several top plates. The top plates are fixedly mounted on the top plate frame. The top plate frame translates along the X-axis through the top plate translation mechanism and lifts along the Z-axis through the top plate lifting mechanism. The gripping mechanism includes a gripping motor, a drive wheel, a driven wheel, a conveyor belt, two gripping plates, and two gripping frame frames. The gripping motor is connected to the drive wheel, and the drive wheel is connected to the driven wheel through the conveyor belt. The two gripping plates are fixedly mounted on the gripping frame frames, and the two gripping frame frames are respectively mounted on the connecting conveyor belt. The grab plate lifting mechanism is a two-stage lifting structure, including a primary lifting motor and a secondary lifting motor. The primary lifting motor is fixedly mounted on the power output shaft of the secondary lifting motor via a motor base. The secondary lifting motor is fixedly mounted on the grab plate X-axis moving mechanism. The power output shaft of the primary lifting motor is fixedly connected to the grab plate mechanism. The grab plate X-axis moving mechanism is fixedly mounted on the bracket to complete the X-axis movement of the secondary lifting motor and the grab plate mechanism.

2. The PCB board reflow oven back-end board picking device according to claim 1, characterized in that: The lower part of the gripper plate is fixedly provided with several hooks, and gaps are provided between the hooks.

3. The PCB board reflow oven back-end board picking device according to claim 1, characterized in that: The conveyor roller has several disc-shaped baffles evenly spaced on its shaft. The PCB board body is placed flat on the disc-shaped baffles, and the electronic components on the PCB board are located in the gap between two disc-shaped baffles.

4. The PCB board reflow oven back-end board picking device according to claim 1, characterized in that: It also includes a PCB board placement rack, which is set on either side of the conveyor roller.

5. A PCB board reflow oven back-end board picking device according to claim 4, characterized in that: The gripping mechanism, gripping X-axis moving mechanism, and gripping lifting mechanism are each set in two groups, and the PCB board placement rack is set in two groups. The two groups of PCB board placement racks are set on the same side or both sides of the conveyor roller, and the gripping plates of the two groups of gripping mechanisms are different in size and specifications.

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