Terminal feeding mechanism and terminal plugging machine

Abstract

The present invention discloses a terminal feeding mechanism and a terminal plugging machine, comprising a terminal conveying trough, a terminal reversing device arranged at the rounded corner of the terminal conveying trough, a terminal loading turntable, and a rotating device driving the terminal loading turntable to rotate, wherein the outer circumference of the terminal loading turntable is provided with a plurality of groups of terminal clamping positions, the terminal reversing device pushes the terminal in the terminal conveying trough into the terminal clamping position, and under the drive of the rotating device, the terminal rotates to the terminal plugging mechanism for plugging. The present invention realizes the continuous feeding of electrical components, replaces the manual plugging of electrical components, and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a terminal feeding mechanism and a terminal plugging machine. Background Art

[0002] Printed circuit board (PCB) assembly is generally divided into two categories according to the types of components: automatic assembly and manual assembly. Automatic assembly mainly performs automatic surface mount assembly (SMT) on surface mount components, while manual assembly mainly performs manual insertion of components that need to be punched and installed on PCB boards. However, existing insertion equipment can generally only insert conventional small components and is not universal. When terminals need to be inserted on the circuit board, manual insertion operations are still required, resulting in low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a terminal feeding mechanism and a terminal plugging machine which have a simple structure, can continuously perform terminal loading and plugging operations, and greatly improve production efficiency.

[0004] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: a terminal feeding mechanism, characterized in that it includes a terminal conveying groove, a terminal reversing device arranged at the rounded corner of the terminal conveying groove, a terminal loading turntable, and a rotating device that drives the terminal loading turntable to rotate, wherein the outer circumference of the terminal loading turntable is provided with a plurality of groups of terminal clamping positions, the terminal reversing device pushes the terminal in the terminal conveying groove into the terminal clamping position, and under the drive of the rotating device, the terminal is rotated to the terminal insertion mechanism for insertion.

[0005] An elastic clamping device is arranged inside the terminal clamping position, and the elastic clamping device comprises a clamping slider and a return spring, wherein the outer shape of the clamping slider is sufficient to force the clamping slider to slide inwards.

[0006] The terminal reversing device comprises a reversing cylinder and a reversing cylinder rod arranged at the output end of the reversing cylinder.

[0007] The rotating device comprises a rotating motor, a chain, a driving sprocket connected to the rotating motor power, and a driven sprocket connected to the terminal feeding turntable transmission.

[0008] A terminal plugging machine comprises a frame, a circuit board conveying mechanism arranged on the frame, a terminal plugging mechanism and a terminal feeding mechanism, characterized in that the terminal feeding mechanism adopts the above-mentioned terminal feeding mechanism.

[0009] 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, wherein 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.

[0010] A accommodating cavity for accommodating a circuit board is provided at the middle inner side of the first slider and the second slider, and the first slider and the second slider are fixedly connected via a connecting piece; the power device comprises a conveyor belt arranged on the frame, and pulleys arranged at both ends of the conveyor belt, the pulleys are driven by a motor, and the conveyor belt is fixedly connected to the first slider.

[0011] The terminal insertion mechanism includes a gantry and an insertion head assembly movably connected to the gantry, wherein 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, and 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; a recessed portion for accommodating the first driving device is arranged on the top of the gantry, and the first driving device includes a first belt and first pulleys arranged at both ends of the first belt, the first pulley is driven by a first motor, and the insertion head assembly is fixedly connected to the first belt; the insertion head assembly includes a connecting seat movably connected to the gantry, and an insertion head slidably connected to the connecting seat.

[0012] The device also includes a transparent carrier sheet arranged above the first slider and the second slider, the transparent carrier sheet includes a transparent platform, a first baffle, a second baffle, a first clamping slot, and a second clamping slot; the first baffle and the second baffle are respectively arranged on both ends of the transparent platform along the X direction; the first baffle and the second baffle are both arranged perpendicular to the X direction; a first clamping slot and a second clamping slot are arranged between the first baffle and the second baffle on the transparent platform, and the slots of the first clamping slot and the second clamping slot are arranged opposite to each other; the first baffle and the first clamping slot are connected by a spring, and the second baffle and the second clamping slot are connected by a spring, and the first clamping slot and the second clamping slot clamp the circuit board; a camera and a laser are arranged between the first guide rail and the second guide rail, and at least three reference marks are arranged on the side of the guide rail platform facing the rack of the circuit board, and the reference marks are made of photochromic material, and the photochromic material presents a color different from that of the circuit board to be installed after being irradiated by the light beam emitted by the laser, so that the camera can take pictures and the image can identify the position of the reference mark.

[0013] A first magnet is arranged on the side of the transparent platform away from the workbench; a second magnet is arranged on the side of the first slider and the second slider away from the workbench; and the first magnet and the second magnet have opposite magnetic properties.

[0014] The beneficial effects that can be achieved by the present invention using the above technical solution are:

[0015] The present invention provides a circuit board conveying mechanism and a terminal insertion mechanism on a frame, so that the circuit board can be conveyed and continuously inserted along the Y-axis direction, thereby greatly improving the insertion efficiency. At the same time, the first drive device and the second drive device accurately control the processing trajectory of the insertion head assembly in the X-axis and Z-axis directions, thereby improving the system operation reliability. By providing a turntable terminal feeding mechanism and cooperating with the pushing of the terminal reversing device, continuous feeding of electrical components is realized, replacing manual insertion of electrical components, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the terminal plugging machine of the present invention.

[0017] Figure 2 This is a structural schematic diagram of the terminal feeding mechanism provided by the present invention.

[0018] Figure 3 A partial structural schematic diagram of the terminal loading turntable provided by the present invention.

[0019] Figure 4 This is a schematic top view of the circuit board conveying mechanism provided by the present invention.

[0020] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 6 This is a schematic top view of the terminal insertion mechanism provided by the present invention.

[0022] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along the BB direction.

[0023] Figure 8 This is a schematic structural diagram of a circuit board conveying mechanism according to another preferred embodiment of the present invention.

[0024] Fig. 9 for Figure 8 The schematic diagram of the first and second slide blocks of the circuit board conveying mechanism is shown.

[0025] Fig.10 for Figure 8 A schematic diagram of the transparent carrier structure of the circuit board conveying mechanism is shown.

[0026] Fig.11 for Fig.10 The transparent carrier shown is a schematic diagram of the state of clamping a circuit board.

[0027] Fig.12 A schematic diagram of the location of the circuit board's fiducial marks.

[0028] Description of the accompanying drawings: 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 chamber, 2-6. connecting piece, 3. terminal insertion mechanism, 3-1. gantry, 3-2. insertion head assembly, 3-2-1. connecting seat, 3-2-2. insertion head, 4. turntable terminal feeding mechanism, 4-1. terminal conveying groove, 4-2. terminal reversing device, 4-2-1. reversing cylinder, 4-2-2. reversing cylinder rod, 4-3. terminal feeding turntable, 4-4. rotating device, 4-4-1. chain, 4-4-2. driving sprocket, 4-5. terminal clamping position, 4-6. elastic clamping device, 4-6-1. clamping slider, 4-6-2, reset spring, 5, power device, 5-1, conveyor belt, 5-2, pulley, 6, first driving device, 6-1, first belt, 6-2, first pulley, 7, second driving device, 7-1, cylinder, 7-2, cylinder rod, 8, transparent carrier, 8-1, transparent platform, 8-2, first baffle, 8-3, spring, 8-4, first positioning notch, 8-5, magnet slot, 8-6, first slider (preferred embodiment), 8-7, second magnet, 8-8, first magnet, 9, camera, 9-1, laser, 9-2, reference mark, 10, circuit board. DETAILED DESCRIPTION

[0029] The present technical solution is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1-Figure 7 As shown, the present invention is a terminal feeding mechanism, characterized in that it includes a frame 1, a circuit board conveying mechanism 2 arranged on the frame 1, a terminal insertion mechanism 3 and a turntable terminal loading mechanism 4, wherein the turntable terminal loading mechanism 4 includes a terminal conveying groove 4-1, a terminal reversing device 4-2 arranged at the rounded corner of the terminal conveying groove 4-1, a terminal loading turntable 4-3, and a rotating device 4-4 for driving the terminal loading turntable 4-3 to rotate, wherein the outer circumference of the terminal loading turntable 4-3 is provided with a plurality of groups of terminal clamping positions 4-5, the terminal reversing device 4-2 pushes the terminal in the terminal conveying groove 4-1 into the terminal clamping position 4-5, and under the drive of the rotating device 4-4, the terminal is rotated to the terminal insertion mechanism 3 for insertion.

[0031] More specifically, an elastic clamping device 4-6 is provided on the inner side of the terminal clamping position 4-5, and the elastic clamping device 4-6 includes a clamping slider 4-6-1 and a return spring 4-6-2, wherein the outer shape of the clamping slider 4-6-1 is sufficient to force the clamping slider 4-6-1 to slide inward.

[0032] More specifically, the terminal reversing device 4-2 includes a reversing cylinder 4-2-1 and a reversing cylinder rod 4-2-2 arranged at the output end of the reversing cylinder.

[0033] More specifically, the rotating device 4-4 includes a rotating motor (not shown in the figure), a chain 4-4-1, a driving sprocket 4-4-2 connected to the rotating motor power, and a driven sprocket (not shown in the figure) transmission-connected to the terminal loading turntable 4-3, and the rotating device adopts chain rotation.

[0034] More specifically, Figure 4-Figure 5 As shown, the circuit board conveying mechanism 2 includes a first guide rail 2-1 and a second guide rail 2-2 which are 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, wherein 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, and a receiving cavity 2-5 for accommodating the circuit board is arranged in the middle of the inner side of the first slider 2-3 and the second slider 2-4.

[0035] More specifically, the first slider 2-3 and the second slider 2-4 are fixedly connected by a connecting piece 2-6, ensuring that the first slider and the second slider maintain synchronous operation during the process of conveying the circuit board, thereby improving the accuracy of circuit board positioning; the power device 5 includes a conveying belt 5-1 arranged on the frame 1, and pulleys 5-2 arranged at both ends of the conveying belt 5-1, and the pulleys are driven by a motor. The conveying belt 5-1 is fixedly connected to the first slider 2-3, and the reciprocating rotation of the conveying belt drives the first slider and the second slider to realize continuous conveying of the circuit board along the Y-axis.

[0036] More specifically, Figure 6-Figure 7 As shown, the terminal insertion mechanism 3 includes a gantry 3-1, and an insertion head assembly 3-2 movably connected to the gantry 3-1, wherein a first driving device 6 is arranged on the gantry 3-1 along the X-axis direction, and the first driving device 6 drives the insertion head assembly 3-2 to reciprocate along the X-axis on the gantry 3-1, and a second driving device 7 is arranged on the insertion head assembly 3-2 along the Z-axis direction, and the second driving device 7 drives the insertion head assembly 3-2 to reciprocate along the Z-axis on the gantry 3-1.

[0037] More specifically, a recessed portion for accommodating the first driving device 6 is provided on the top of the gantry 3-1. The first driving device 6 includes a first belt 6-1 and first pulleys 6-2 provided at both ends of the first belt. The first pulley is driven by a first motor. The insertion head assembly 3-2 is fixedly connected to the first belt 6-1, and the insertion head assembly is driven by the first belt to reciprocate along the X-axis on the gantry.

[0038] More specifically, the insertion head assembly 3-2 includes a connection seat 3-2-1 movably connected to the gantry 3-1, and an insertion head 3-2-2 slidably connected to the connection seat 3-2-1.

[0039] 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 cylinder rod pushes the insertion head to realize the insertion action in the Z-axis direction.

[0040] In this embodiment, the circuit board conveying mechanism 2 transports the circuit board to be processed to the specified position, and at the same time the terminal reversing device 4-2 pushes the terminal into the terminal clamping position 4-5, and the clamping slider 4-6-1 fixes the terminal under the action of the reset spring 4-6-2 to prevent it from falling; the rotating device 4-4 rotates the terminal to the terminal insertion mechanism 3, and the first drive device 6 and the second drive device 7 accurately control the processing trajectory of the insertion head assembly 3-2 in the X-axis and Z-axis directions for insertion, which greatly improves the insertion efficiency.

[0041] As a preferred embodiment, in the above embodiment, a transparent carrier is arranged above the first slider and the second slider, and the transparent carrier is driven by the first slider and the second slider to move in the Y-axis direction, and the circuit board is placed in the transparent carrier. Specifically, the transparent carrier 8 includes a transparent platform 8-1, a first baffle 8-2, a second baffle, a first clamping slot 8-4, and a second clamping slot; the first baffle 8-2 and the second baffle are respectively arranged at both ends of the transparent platform 8-1 along the X direction; the first baffle 8-2 and the second baffle are both arranged perpendicular to the X direction; the first clamping slot 8-4 and the second clamping slot are arranged between the first baffle 8-2 and the second baffle on the transparent platform 8-1, and the slots of the first clamping slot 8-4 and the second clamping slot are arranged opposite to each other; the first baffle 8-2 and the first clamping slot 8-4 are elastically connected to each other. The first and second clamping slots are connected by spring 8-3, the second baffle is connected to the second clamping slot by spring 8-3, the first clamping slot and the second clamping slot clamp the circuit board; a camera 9 and a laser 9-1 are arranged between the first guide rail and the second guide rail, and the circuit board 10 is provided with at least three reference marks 9-2 on the side of the guide rail platform facing the rack, and the reference marks 9-2 are made of photochromic material, and the photochromic material presents a different color from the circuit board 10 to be installed after being irradiated by the light beam emitted by the laser 9-1, so that the camera 9 can take pictures and the image can identify the position of the reference mark 9-2. The camera 9 and the laser 9-1 are preferably arranged below the insertion head.

[0042] When in use, the user can place the circuit board 10 to be inserted on the transparent carrier 8, and the processor controls the first slider and the second slider to move on the Y-axis, thereby driving the transparent carrier 8 and the circuit board 10 to be installed on the transparent carrier 8 to move along the Y-axis to below the insertion head. The camera 9 takes a picture of the circuit board 10 to be installed that moves to the top, and transmits the captured image to the processor. The processor extracts the position of the reference mark 9-2 through image recognition, and controls the X-axis slider driver to move to the target position and adjust the position of the circuit board in the Y-axis direction through the position of the reference mark 9-2, and then completes the transfer of the electronic components through the Z-axis telescopic rod. The insertion machine takes a picture of the circuit board through the camera 9, identifies the position of the reference mark 9-2, and then performs the alignment and installation of the electronic components. It can be understood that considering the aesthetics of the circuit board, the reference mark 9-2 on the circuit board 10 to be installed can be made of photochromic material. When the photochromic material is not irradiated by the light beam emitted by the laser 9-1, it presents the same color as the circuit board 10 to be installed, which is difficult to distinguish with the naked eye, which is beneficial to the aesthetics of the circuit board; after being irradiated by the light beam emitted by the laser 9-1, the photochromic material presents a different color from the circuit board 10 to be installed, so that the camera 9 can take pictures and recognize the position of the reference mark 9-2 in the image. In a preferred embodiment of the present invention, the laser 9-1 is an ultraviolet laser 9-1.

[0043] A first magnet 8-8 is provided on the side of the transparent platform 8-1 facing away from the workbench; a magnet slot 8-5 is provided on the side of the first slider 8-6 and the second slider facing away from the workbench, and a second magnet 8-7 is provided in the magnet slot 8-5; the first magnet 8-8 and the second magnet 8-7 have opposite magnetic properties. The first magnet 8-8 and the second magnet 8-7 have opposite magnetic properties, that is, the first magnet 8-8 and the second magnet 8-7 attract each other. The transparent platform 8-1 can be detachably mounted on the first slider and the second slider through magnets.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A terminal feeding mechanism, characterized in that: It includes a terminal conveying groove, a terminal reversing device arranged at the rounded corner of the terminal conveying groove, a terminal loading turntable, and a rotating device for driving the terminal loading turntable to rotate, wherein the outer circumference of the terminal loading turntable is provided with a plurality of groups of terminal clamping positions, the terminal reversing device pushes the terminals in the terminal conveying groove into the terminal clamping positions, and under the drive of the rotating device, the terminals are rotated to the terminal insertion mechanism for insertion.

2. A terminal feeding mechanism according to claim 1, characterized in that: An elastic clamping device is arranged inside the terminal clamping position, and the elastic clamping device comprises a clamping slider and a return spring, wherein the outer shape of the clamping slider is sufficient to force the clamping slider to slide inwards.

3. A terminal feeding mechanism according to claim 2, characterized in that: The terminal reversing device comprises a reversing cylinder and a reversing cylinder rod arranged at the output end of the reversing cylinder.

4. A terminal feeding mechanism according to claim 3, characterized in that: The rotating device comprises a rotating motor, a chain, a driving sprocket connected to the rotating motor power, and a driven sprocket connected to the terminal feeding turntable transmission.

5. A terminal plugging machine, comprising a frame, a circuit board conveying mechanism, a terminal plugging mechanism and a terminal feeding mechanism arranged on the frame, characterized in that: The terminal feeding mechanism adopts the terminal feeding mechanism as described in any one of claims 1 to 4; 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, wherein 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; it also includes a transparent carrier arranged above the first slider and the second slider, and the transparent carrier includes a transparent platform, a first baffle, a second baffle, a first clamping slot, and a second clamping slot; the first baffle and the second baffle are respectively arranged at both ends of the transparent platform along the X direction; the first baffle and the second baffle are both connected to the X direction The first baffle plate is connected to the first clamping slot by a spring, and the second baffle plate is connected to the second clamping slot by a spring, and the first clamping slot and the second clamping slot clamp the circuit board; a camera and a laser are arranged between the first guide rail and the second guide rail, and at least three reference marks are arranged on the side of the guide rail platform facing the rack, and the reference marks are made of photochromic material, and the photochromic material presents a color different from that of the circuit board to be installed after being irradiated by the light beam emitted by the laser, so that the camera can take pictures and the image can identify the position of the reference mark.

6. The terminal insertion machine according to claim 5, characterized in that: A accommodating cavity for accommodating a circuit board is provided at the middle inner side of the first slider and the second slider, and the first slider and the second slider are fixedly connected via a connecting piece; the power device comprises a conveyor belt arranged on the frame, and pulleys arranged at both ends of the conveyor belt, the pulleys are driven by a motor, and the conveyor belt is fixedly connected to the first slider.

7. The terminal insertion machine according to claim 6, characterized in that: The terminal insertion mechanism includes a gantry and an insertion head assembly movably connected to the gantry, wherein 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, and 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; a recessed portion for accommodating the first driving device is arranged on the top of the gantry, and the first driving device includes a first belt and first pulleys arranged at both ends of the first belt, the first pulley is driven by a first motor, and the insertion head assembly is fixedly connected to the first belt; the insertion head assembly includes a connecting seat movably connected to the gantry, and an insertion head slidably connected to the connecting seat.

8. The terminal insertion machine according to claim 7, characterized in that: A first magnet is arranged on the side of the transparent platform away from the workbench; a second magnet is arranged on the side of the first slider and the second slider away from the workbench; and the first magnet and the second magnet have opposite magnetic properties.

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