A PCB board picking and placing machine

Abstract

The present invention relates to a machine for removing carriers and placing PCB boards. The machine comprises a frame equipped with a docking track, a carrier buffer mechanism, a latch mechanism, a board retrieval robot, a fixture transfer mechanism, a track opening and closing mechanism, and a carrier return belt. The present invention's automatic PCB board removal and placement machine can reduce production costs, improve efficiency, and enhance quality, while eliminating the high labor intensity associated with this workstation and resolving the difficulty of recruiting workers.

Description

Technical Field

[0001] The present invention relates to the technical field of picking and placing PCB boards, and in particular to a machine platform for picking and placing PCB boards without a carrier. Background Art

[0002] In existing technology, carrier removal from PCBs is done manually, using industrial robotic arms coupled with large jigs or visual processing to remove the carriers and place the PCBs. Using robotic arms and specialized suction cup jigs to place and place PCBs and carriers requires additional jig costs, lengthy changeover times, high investment costs, and low efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a PCB board loading and unloading machine to reduce costs and improve efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A PCB board removal and placement machine comprises a frame, on which are provided a docking track, a carrier buffer mechanism, a buckle mechanism, a board removal manipulator, a fixture transfer mechanism, a track opening and closing mechanism, and a carrier reflow belt;

[0006] The docking track is provided at the input port of the rack, and the carrier loaded with PCB boards flows in from the docking track;

[0007] The carrier cache mechanism is located at the rear end of the docking track. The lower end of the carrier cache mechanism has a cache conveyor belt docked with the docking track. A plurality of storage units for storing carriers are provided above the cache conveyor belt.

[0008] The buckle mechanism is located at the rear end of the carrier buffer mechanism. The lower end of the buckle mechanism is provided with a buckle conveyor belt docking with the buffer conveyor belt. The upper two sides of the buckle conveyor belt are respectively provided with buckle manipulators that can move along the XYZ axis. After the carrier enters the buckle conveyor belt and is transported to the buckle station, the buckle conveyor belt stops moving, and the two buckle manipulators respectively operate to unlock the fixture buckle on the carrier to release the lock on the PCB board.

[0009] The jig transfer mechanism is located at the rear end of the buckle mechanism, and the jig transfer mechanism includes a transfer guide rail and a transfer slide. The transfer slide is slidably connected to the transfer guide rail and is driven to slide by the transverse driving mechanism. The front end of the transfer guide rail is located at the rear end of the buckle conveyor belt, and the carrier return belt is located at the rear end of the transfer guide rail.

[0010] The transfer slide is provided with a transfer conveyor belt, and the carrier with the fixture buckle unfastened is sent from the buckle conveyor belt to the transfer conveyor belt; the middle part of the transfer slide is provided with a lifting mechanism, which is used to lift the PCB board on the carrier and separate it from the carrier;

[0011] The board-taking robot and the track opening and closing mechanism are arranged from top to bottom just above the front end of the transfer guide rail; the track opening and closing mechanism is provided with a board-feeding conveyor belt, and the board-taking robot can move along the XYZ axes. When the board-taking robot descends to take the board, the track opening and closing mechanism opens. After the board-taking robot takes back the PCB board and rises, the track opening and closing mechanism retracts to its original position, and the board-taking robot places the PCB board on the board-feeding conveyor belt, and the PCB board is sent out by the board-feeding conveyor belt.

[0012] Furthermore, the storage unit includes two lifting conveyor belts arranged on both sides of the buffer conveyor belt and arranged in the vertical direction. A plurality of mutually corresponding support bars are arranged at intervals on the two lifting conveyor belts, and the carriers are stored on the corresponding support bars on both sides.

[0013] Furthermore, the execution end of the button-pulling robot is connected to a spring column.

[0014] Furthermore, the execution end of the plate-taking robot is connected to a clamping mechanism.

[0015] Furthermore, the track opening and closing mechanism includes a movable vertical plate and a fixed vertical plate, and the opposite end surfaces of the movable vertical plate and the fixed vertical plate are respectively provided with synchronous plate feeding conveyor belts. The movable vertical plate is driven by the telescopic driving mechanism to slide along the guide rod to approach or move away from the fixed vertical plate.

[0016] The present invention adopts the above-mentioned technical solution and introduces an automatic carrier removal and PCB board placement machine, which can reduce production costs, improve efficiency, enhance quality, eliminate the high labor intensity of employees at this position, and solve the difficulty of recruiting workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the connecting track;

[0020] Figure 3 is a schematic diagram of a vehicle caching mechanism;

[0021] Figure 4 Schematic diagram of the button mechanism;

[0022] Figure 5 Schematic diagram of the plate-taking robot;

[0023] Figure 6 Schematic diagram of the fixture transfer mechanism;

[0024] Figure 7 is a schematic diagram of the track opening and closing mechanism;

[0025] Figure 8 Schematic diagram of the carrier return belt. DETAILED DESCRIPTION

[0026] like Figure 1-8 As shown, the present invention provides a PCB board removal and placement machine, comprising a frame, on which are provided a connecting track 1, a carrier buffer mechanism 2, a buckle mechanism 3, a board removal robot 4, a fixture transfer mechanism 5, a track opening and closing mechanism 6, and a carrier reflow belt 7;

[0027] The docking track 1 is set at the input port of the rack, and the carrier loaded with PCB boards flows into the docking track 1;

[0028] The carrier buffer mechanism 2 is located at the rear end of the docking track 1. A buffer conveyor belt 21 is located at its lower end, docking with the docking track 1. Above the buffer conveyor belt 21 are multiple storage units for carriers. These storage units include two vertically arranged lifting conveyor belts 22 on either side of the buffer conveyor belt 21. Multiple, corresponding support bars 23 are spaced apart on the lifting conveyor belts 22, and carriers are stored on these corresponding support bars 23. When a downstream workstation experiences a malfunction or temporarily loses a request for PCBs, carriers loaded with PCBs are stored layer by layer in the carrier buffer mechanism 2. (The lifting conveyor belts 22 on either side drive the corresponding support bars 23 upward, removing the carriers from the buffer conveyor belt 21.) When the downstream workstation receives a request for PCBs, the lifting conveyor belts 22 on either side drive the corresponding support bars 23 downward to the bend at the bottom, whereupon the carriers detach from the support bars 23 and fall onto the buffer conveyor belt 21. The buffer conveyor belts 21 then transport the carriers to the rear.

[0029] The snap mechanism 3 is located at the rear end of the carrier buffer mechanism 2. A snap conveyor belt 31 is provided at the lower end of the snap mechanism 3, which interfaces with the buffer conveyor belt 21. A snap manipulator 32 capable of moving along the X, Y, and Z axes is provided on either side of the snap conveyor belt 31. The execution ends of the snap manipulators 32 are connected to spring columns. After the carrier enters the snap station, the snap conveyor belt 31 stops moving, and the telescopic baffle at the rear end of the snap conveyor belt 31 extends to limit the carrier. Then, the two snap manipulators 32 use spring columns to remove the fixture buckle, without interfering with each other. After the spring columns descend, they move to unlock the fixture buckle to release the lock on the PCB board.

[0030] The fixture transfer mechanism 5 is located at the rear end of the buckle mechanism 3. The fixture transfer mechanism 5 includes a transfer guide rail 51 and a transfer slide 52. The transfer slide 52 is slidably connected to the transfer guide rail 51 and is driven to slide by the transverse drive mechanism. The front end of the transfer guide rail 51 is located at the rear end of the buckle conveyor belt 31, and the carrier return belt 7 is located at the rear end of the transfer guide rail 51.

[0031] A transfer conveyor belt 53 is provided on the transfer slide 52, and the carrier with the jig buckle unfastened is sent from the buckle conveyor belt 31 to the transfer conveyor belt 53; a lifting mechanism 54 is provided in the middle of the transfer slide 52, and the lifting mechanism 54 is used to lift the PCB board on the carrier and separate it from the carrier;

[0032] The plate-taking robot 4 and the track opening and closing mechanism 6 are arranged from top to bottom just above the front end of the transfer guide rail 51; the track opening and closing mechanism 6 includes a movable vertical plate 61 and a fixed vertical plate 62, and the opposite end surfaces of the movable vertical plate 61 and the fixed vertical plate 62 are respectively provided with synchronously moving plate conveyor belts 63, and the movable vertical plate 61 is driven by the telescopic drive mechanism to slide along the guide rod to approach or move away from the fixed vertical plate 62, thereby realizing opening and closing.

[0033] The board-taking robot 4 can move along the XYZ axis, and the execution end of the board-taking robot 4 is connected to a clamping mechanism; when the board-taking robot 4 descends to take the board, the track opening and closing mechanism 6 opens. After the board-taking robot 4 takes back the PCB board and rises, the track opening and closing mechanism 6 retracts to its original position, and the board-taking robot 4 places the PCB board on the board feeding conveyor belt 63, and the PCB board is sent out by the board feeding conveyor belt 63.

[0034] In the present invention, the X-axis is along the conveying direction of the connecting track 1, the Y-axis is perpendicular to the X-axis in the horizontal plane, and the Z-axis is along the vertical direction.

[0035] The above describes a specific embodiment of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the present invention, but these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A machine for removing and placing PCB boards from a carrier, comprising a frame, characterized in that: The frame is provided with a connecting rail, a carrier buffer mechanism, a buckle mechanism, a plate-taking manipulator, a fixture transfer mechanism, a rail opening and closing mechanism and a carrier return belt; The docking track is provided at the input port of the rack, and the carrier loaded with PCB boards flows in from the docking track; The carrier cache mechanism is located at the rear end of the docking track. The lower end of the carrier cache mechanism has a cache conveyor belt docked with the docking track. A plurality of storage units for storing carriers are provided above the cache conveyor belt. The buckle mechanism is located at the rear end of the carrier buffer mechanism. The lower end of the buckle mechanism is provided with a buckle conveyor belt docking with the buffer conveyor belt. The upper two sides of the buckle conveyor belt are respectively provided with buckle manipulators that can move along the XYZ axis. After the carrier enters the buckle conveyor belt and is transported to the buckle station, the buckle conveyor belt stops moving, and the two buckle manipulators respectively operate to unlock the fixture buckle on the carrier to release the lock on the PCB board. The jig transfer mechanism is located at the rear end of the buckle mechanism, and the jig transfer mechanism includes a transfer guide rail and a transfer slide. The transfer slide is slidably connected to the transfer guide rail and is driven to slide by the transverse driving mechanism. The front end of the transfer guide rail is located at the rear end of the buckle conveyor belt, and the carrier return belt is located at the rear end of the transfer guide rail. The transfer slide is provided with a transfer conveyor belt, and the carrier with the fixture buckle unfastened is sent from the buckle conveyor belt to the transfer conveyor belt; the middle part of the transfer slide is provided with a lifting mechanism, which is used to lift the PCB board on the carrier and separate it from the carrier; The PCB removal robot and the track opening and closing mechanism are arranged from top to bottom just above the front end of the transfer guide rail; the track opening and closing mechanism is provided with a board feeding conveyor belt, and the PCB removal robot can move along the XYZ axes. When the PCB removal robot descends to take the board, the track opening and closing mechanism opens. After the PCB removal robot takes out the PCB and rises, the track opening and closing mechanism retracts to its original position, and the PCB removal robot places the PCB board on the board feeding conveyor belt, and the PCB board is fed out by the board feeding conveyor belt. The execution end of the button-pulling robot is connected to a spring column; The track opening and closing mechanism includes a movable vertical plate and a fixed vertical plate. The opposite end surfaces of the movable vertical plate and the fixed vertical plate are respectively provided with synchronous plate feeding conveyor belts. The movable vertical plate is driven by the telescopic driving mechanism to slide along the guide rod to approach or move away from the fixed vertical plate.

2. The PCB board removal and placement machine according to claim 1, characterized in that: The storage unit includes two lifting conveyor belts arranged on both sides of the buffer conveyor belt and arranged in the vertical direction. A plurality of mutually corresponding support bars are arranged at intervals on the two lifting conveyor belts, and the carriers are stored on the corresponding support bars on both sides.

3. The PCB board removal and placement machine according to claim 1, characterized in that: The execution end of the plate-taking robot is connected with a clamping mechanism.

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