A circuit board inserting machine

Abstract

The present invention discloses a circuit board inserting machine, which comprises a frame, a circuit board conveying mechanism, a terminal inserting mechanism and a terminal feeding mechanism arranged on the frame. It is characterized in that the circuit board conveying mechanism comprises a first guide rail and a second guide rail arranged in parallel along the Y-axis direction, as well as a first slider and a second slider. A receiving cavity for receiving a circuit board is arranged in the middle of the inner sides of the first slider and the second slider; the terminal inserting mechanism comprises a gantry and an inserting head assembly movably connected to the gantry. The present invention can automatically and continuously perform inserting operations on circuit board components, and the driving device structure enables the circuit board and components to move accurately in place, greatly improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a circuit board inserter. Background Art

[0002] The assembly of printed circuit boards (PCBs) is generally divided into two categories: automatic assembly and manual assembly according to the types of components. Automatic assembly mainly performs automatic chip mounting (SMT) on surface-mounted components, and manual assembly mainly performs manual insertion on components that need to be drilled and installed on the PCB. However, existing insertion equipment generally can only insert terminals packaged in tape reels, and does not have universality. When it is necessary to insert devices such as relays on the PCB, it is impossible to automatically and continuously feed the materials, and manual insertion operations still need to be carried out, and the insertion operation cannot be automated and continuous, resulting in low work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an inserter that can automatically and continuously feed and insert circuit board devices to solve the deficiencies of the prior art.

[0004] The present invention adopts the following technical solution to achieve the above purpose:

[0005] A circuit board inserter includes a frame, a circuit board conveying mechanism, a terminal insertion mechanism, and a terminal feeding mechanism arranged on the frame. It is characterized in that the circuit board conveying mechanism includes a first guide rail and a second guide rail arranged in parallel along the Y-axis direction, and a first slider movably connected to the first guide rail and a second slider movably connected to the second guide rail. The first slider and the second slider are respectively driven by a power device to slide along the first guide rail and the second guide rail. A receiving cavity for accommodating the circuit board is arranged in the middle of the inner sides of the first slider and the second slider.

[0006] The terminal insertion mechanism includes a gantry and an insertion head assembly movably connected to the gantry. A first driving device is arranged on the gantry along the X-axis direction, and the first driving device drives the insertion head assembly to reciprocate along the X-axis on the gantry. A second driving device is arranged on the insertion head assembly along the Z-axis direction, and the second driving device drives the insertion head assembly to reciprocate along the Z-axis on the gantry.

[0007] As a further illustration of the above solution, the terminal feeding mechanism includes a vibrating screen, a feeding pipe connected to the output end of the vibrating screen, and a terminal reversing device provided at the rounded corner of the feeding pipe. The output end of the feeding pipe is provided with an upper through hole and a lower through hole that cooperate with the insertion head assembly. A flip cover is correspondingly provided at the lower through hole, and the end of the flip cover is movably connected to the lower through hole through a return torsion spring. The terminal reversing device includes a reversing cylinder and a reversing cylinder rod provided at the output end of the reversing cylinder.

[0008] Further, the first slider and the second slider are fixedly connected through a connecting member; the power device includes a conveyor belt provided on the frame and belt pulleys provided at both ends of the conveyor belt. The belt pulleys are driven by a motor, and the conveyor belt is fixedly connected to the first slider.

[0009] Further, a concave portion for accommodating the first driving device is provided at the top of the gantry. The first driving device includes a first belt and first belt pulleys provided at both ends of the first belt. The first belt pulleys are driven by a first motor, and the insertion head assembly is fixedly connected to the first belt.

[0010] Further, the insertion head assembly includes a connecting seat movably connected to the gantry and an insertion head slidably connected to the connecting seat.

[0011] Further, the second driving device includes a cylinder and a cylinder rod. The cylinder is fixedly connected to the connecting seat, and the cylinder rod passes through the connecting seat and is fixedly connected to the insertion head.

[0012] Further, a photoelectric sensor is provided at the bottom of the guide rail for visual positioning of the circuit board.

[0013] Further, the power device, the first driving device, the second driving device, the terminal reversing device, and the photoelectric sensor are all electrically connected to the PLC control system.

[0014] Further, the PLC control system is provided with an alarm mechanism.

[0015] The beneficial effects that can be achieved by the present invention adopting the above technical solution are as follows:

[0016] By providing a circuit board conveying mechanism and a terminal insertion mechanism on the frame, the present invention enables the circuit board to be conveyed along the Y-axis direction and continuously inserted, greatly improving the insertion efficiency. At the same time, the first driving device and the second driving device precisely control the processing trajectory of the insertion head assembly in the X-axis and Z-axis directions, improving the reliability of the system operation; by providing a terminal feeding mechanism, continuous feeding of electrical components is realized, replacing manual insertion of electrical components and improving work efficiency. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the feeding pipe provided by the present invention.

[0019] Figure 3 It is a top view structural schematic diagram of the circuit board conveying mechanism provided by the present invention.

[0020] Figure 4 It is Figure 3 a schematic cross-sectional structural diagram in the A-A direction in

[0021] Figure 5 It is a top view structural schematic diagram of the terminal insertion mechanism provided by the present invention.

[0022] Figure 6 It is Figure 5 a schematic cross-sectional structural diagram in the B-B direction in

[0023] Description of the reference numerals: 1, frame; 2, circuit board conveying mechanism; 2-1, first guide rail; 2-2, second guide rail; 2-3, first slider; 2-4, second slider; 2-5, accommodating cavity; 2-6, connecting member; 3, terminal insertion mechanism; 3-1, gantry; 3-2, insertion head assembly; 3-2-1, connecting seat; 3-2-2, insertion head; 4, terminal feeding mechanism; 4-1, vibrating screen; 4-2, feeding pipe; 4-3, upper through hole; 4-4, lower through hole; 4-5, flip cover; 4-6, return torsion spring; 5, power device; 5-1, conveyor belt; 5-2, pulley; 6, first driving device; 6-1, first belt; 6-2, first belt pulley; 7, second driving device; 7-1, cylinder; 7-2, cylinder rod; 8, terminal commutation device; 8-1, commutation cylinder; 8-2, commutation cylinder rod. Detailed Embodiments

[0024] The following describes the technical solution in detail with specific embodiments.

[0025] As Figures 1 - 6As shown in the figure, the present invention is a circuit board inserting machine, which includes a frame 1, a circuit board conveying mechanism 2, a terminal inserting mechanism 3 and a terminal feeding mechanism 4 provided on the frame 1. It is characterized in that the circuit board conveying mechanism 2 includes a first guide rail 2-1 and a second guide rail 2-2 arranged in parallel along the Y-axis direction, and a first slider 2-3 movably connected to the first guide rail 2-1 and a second slider 2-4 movably connected to the second guide rail 2-2. The first slider 2-3 and the second slider 2-4 are driven by a power device 5 to slide along the first guide rail 2-1 and the second guide rail 2-2 respectively. A receiving cavity 2-5 for accommodating the circuit board is provided in the middle of the inner sides of the first slider 2-3 and the second slider 2-4;

[0026] The terminal inserting mechanism 3 includes a gantry 3-1 and an inserting head assembly 3-2 movably connected to the gantry 3-1. A first driving device 6 is arranged on the gantry 3-1 along the X-axis direction. The first driving device 6 drives the inserting head assembly 3-2 to reciprocate along the X-axis on the gantry 3-1. A second driving device 7 is arranged on the inserting head assembly 3-2 along the Z-axis direction. The second driving device 7 drives the inserting head assembly 3-2 to reciprocate along the Z-axis on the gantry 3-1;

[0027] The terminal feeding mechanism 4 includes a vibrating screen 4-1, a feeding pipe 4-2 connected to the output end of the vibrating screen 4-1, and a terminal reversing device 8 arranged at the rounded corner of the feeding pipe 4-2. An upper through hole 4-3 and a lower through hole 4-4 for cooperating with the inserting head assembly 3-2 are provided at the output end of the feeding pipe 4-2. A flap 4-5 is correspondingly arranged at the lower through hole 4-4. The end of the flap 4-5 is movably connected to the lower through hole 4-4 through a return torsion spring 4-6.

[0028] More specifically, the terminal reversing device 8 includes a reversing cylinder 8-1 and a reversing cylinder rod 8-2 arranged at the output end of the reversing cylinder 8-1. The electrical components in the feeding pipe are pushed by the reversing cylinder rod towards the output end of the feeding pipe. Upper through holes and lower through holes corresponding to the inserting head assembly are provided at the end of the feeding pipe. When the inserting head assembly makes an inserting action downward, the electrical components are squeezed downward and the flap opens, so that the electrical components are inserted onto the circuit board. When the inserting head assembly returns upward, the flap resets and closes under the action of the return torsion spring, and the next electrical component is pushed to the position of the lower through hole, realizing the reversing and continuous feeding of the electrical components in the feeding pipe.

[0029] More specifically, the first slider 2-3 and the second slider 2-4 are fixedly connected by a connecting member 2-6 to ensure that the first slider and the second slider run synchronously during the process of conveying the circuit board, improving the accuracy of circuit board positioning; the power device 5 includes a conveyor belt 5-1 provided on the frame 1 and belt pulleys 5-2 provided at both ends of the conveyor belt 5-1. The belt pulleys are driven by a motor, and the conveyor belt 5-1 is fixedly connected to the first slider 2-3. Through the reciprocating rotation of the conveyor belt, the first slider and the second slider are driven to realize the continuous conveyance of the circuit board along the Y-axis.

[0030] More specifically, a recessed portion for accommodating the first driving device 6 is provided at the top of the gantry 3-1. The first driving device 6 includes a first belt 6-1 and first belt pulleys 6-2 provided at both ends of the first belt. The first belt pulleys are driven by a first motor, and the insertion head assembly 3-2 is fixedly connected to the first belt 6-1. The insertion head assembly is driven by the first belt to reciprocate along the X-axis on the gantry.

[0031] More specifically, the insertion head assembly 3-2 includes a connecting seat 3-2-1 movably connected to the gantry 3-1 and an insertion head 3-2-2 slidably connected to the connecting seat 3-2-1.

[0032] More specifically, the second driving device 7 includes a cylinder 7-1 and a cylinder rod 7-2. The cylinder 7-1 is fixedly connected to the connecting seat 3-2-1. The cylinder rod 7-2 passes through the connecting seat 3-2-1 and is fixedly connected to the insertion head 3-2-2. The insertion head is pushed by the cylinder rod to realize the insertion action in the Z-axis direction.

[0033] More specifically, a photoelectric sensor is provided at the bottom of the guide rail for visual positioning of the circuit board. During the design and manufacturing stage of the circuit board, the manufacturer usually sets copper positioning circles on the board as the positioning standards for subsequent device soldering and circuit cutting. Such copper positioning circles are also called fiducial points or Mark points, providing common measurable points for all steps in the assembly process, ensuring that each device used in the assembly can accurately position the circuit pattern. During the conveyance of the circuit board, the Mark points on the circuit board are detected by the photoelectric sensor. When the circuit board reaches the specified position, the circuit board conveying mechanism stops running, and the special-shaped parts are inserted through the terminal insertion mechanism.

[0034] More specifically, the power device 5, the first driving device 6, the second driving device 7, the terminal commutation device 8, and the photoelectric sensor are all electrically connected to the PLC control system; the PLC control system is provided with an alarm mechanism.

[0035] In this embodiment, the present invention further provides a path memory control method. After the belt device starts and runs smoothly, before each trajectory processing (i.e., in the X-axis, Y-axis, and Z-axis directions), the movement trajectory of the manual operation device is recorded along with the position and pulse values. After resetting to zero, the pulse values are preset in the memory of the PLC control system and the model numbers are edited. Different types of devices correspond to different model numbers. After the processing starts, the system loads the processing trajectory and executes it according to the preset parameters.

[0036] The present invention uses the motion controller in the PLC control system as the carrier, which meets the high real-time requirements of the processing system in terms of structure. All processing actions are run under the control of the motion controller to achieve accurate and reliable motion trajectories. The system is equipped with an alarm mechanism. When the memorized path fails to reach the preset position, the buzzer alarms and the equipment stops running to prevent defective products from appearing on the production line.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A circuit board inserting machine, comprising a frame, a circuit board conveying mechanism, a terminal inserting mechanism and a terminal feeding mechanism arranged on the frame, characterized in that, the circuit board conveying mechanism includes a first guide rail and a second guide rail arranged in parallel along the Y-axis direction, a first slider movably connected to the first guide rail, and a second slider movably connected to the second guide rail. The first slider and the second slider are driven by a power device to slide along the first guide rail and the second guide rail respectively. A receiving cavity for receiving a circuit board is arranged in the middle of the inner sides of the first slider and the second slider; the terminal inserting mechanism includes a gantry and an inserting head assembly movably connected to the gantry. A first driving device is arranged on the gantry along the X-axis direction, and the first driving device drives the inserting head assembly to reciprocate along the X-axis on the gantry. A second driving device is arranged on the inserting head assembly along the Z-axis direction, and the second driving device drives the inserting head assembly to reciprocate along the Z-axis on the gantry; the terminal feeding mechanism includes a vibrating screen, a feeding pipe connected to the output end of the vibrating screen, and a terminal reversing device arranged at the rounded corner of the feeding pipe. An upper through hole and a lower through hole for cooperating with the inserting head assembly are arranged at the output end of the feeding pipe. A flip cover is correspondingly arranged at the lower through hole, and the end of the flip cover is movably connected to the lower through hole through a return torsion spring. The terminal reversing device includes a reversing cylinder and a reversing cylinder rod arranged at the output end of the reversing cylinder.

2. A circuit board inserting machine according to claim 1, characterized in that, the first slider and the second slider are fixedly connected through a connecting piece; the power device includes a conveying belt arranged on the frame, belt wheels arranged at both ends of the conveying belt, the belt wheels are driven by a motor, and the conveying belt is fixedly connected to the first slider.

3. A circuit board inserting machine according to claim 1, characterized in that, a concave portion for accommodating the first driving device is arranged at the top of the gantry. The first driving device includes a first belt and first belt wheels arranged at both ends of the first belt. The first belt wheels are driven by a first motor, and the inserting head assembly is fixedly connected to the first belt.

4. A circuit board inserting machine according to claim 1, characterized in that, the inserting head assembly includes a connecting seat movably connected to the gantry and an inserting head slidably connected to the connecting seat.

5. A circuit board inserting machine according to claim 4, characterized in that, the second driving device includes a cylinder and a cylinder rod. The cylinder is fixedly connected to the connecting seat, and the cylinder rod passes through the connecting seat and is fixedly connected to the inserting head.

6. A circuit board inserting machine according to claim 1, characterized in that, a photoelectric sensor is arranged at the bottom of the guide rail for visual positioning of the circuit board.

7. A circuit board inserting machine according to claim 6, characterized in that, The power device, the first driving device, the second driving device, the terminal commutation device, and the photoelectric sensor are all electrically connected to the PLC control system.

8. A circuit board inserting machine according to claim 7, wherein, the PLC control system is provided with an alarm mechanism.

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