Board placing machine for pretreatment of PCB (Printed Circuit Board) circuit

Abstract

The utility model discloses a board placing machine for pretreatment of a PCB (Printed Circuit Board) circuit. The board placing machine for pretreatment of the PCB circuit mainly comprises a rack, a board taking module and a position adjusting module, a plate placing machine body of the device is fixed through a rack, an air cylinder is installed on the side face of a plate taking module, a motor is connected with a transfer rotating arm through a cross beam, the transfer rotating arm is connected with a plate taking assembly in linkage with the rotating arm, a plurality of sets of suction cups are arranged in the middle of the plate taking assembly, and position sensors are installed on the two sides of the plate taking assembly. A separation controller and separation clamping teeth are arranged below the position sensor, the separation clamping teeth are of tooth-shaped structures which are arranged in parallel and are gradually decreased in thickness, and the closely attached circuit boards can be separated by means of the separation controller and the separation clamping teeth. And the processing effect is influenced by the non-centered position of the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board printing, in particular to a board placing machine for PCB circuit pre-treatment. Background Technique

[0002] With the vigorous development of the electronic industry, the cost, reliability and precision of electronic products have become the breakthrough points for many circuit board enterprises to improve their market competitiveness. The printed circuit board is a substrate for carrying electronic components. As the core component of electronic products, it is particularly important to improve its production efficiency and yield, which has become a very important topic in enterprises.

[0003] In the existing PCB circuit pre-treatment process of our company, the circuit boards processed in the previous process are stacked obliquely and vertically on the transfer cart and are easily adhered to each other. This will cause the board placing machine to pick up multiple boards at a time, resulting in the situation of stacked boards, which will cause the situation of board jamming in the subsequent processing process and requires manual troubleshooting, affecting the production efficiency of the circuit board. Moreover, when the board placing machine encounters circuit boards of different specifications, the position of the circuit board on the conveyor belt is not easy to be centered, which will affect the processing effect of the subsequent process. In view of the problems of the existing circuit pre-treatment board placing machine, such as easy stacking of placed boards resulting in board jamming faults and position deviation affecting the processing effect, a board placing machine for PCB circuit pre-treatment is needed to solve the problems of stacked boards, board jamming and non-centering caused by board picking of the existing equipment.

[0004] Based on this, the utility model designs a board placing machine for PCB circuit pre-treatment to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a board placing machine for PCB circuit pre-treatment to solve the problems of stacked boards, board jamming affecting efficiency caused by board picking of the existing board placing machine, and non-centering of the circuit board affecting the processing effect in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model aims to provide a board placing machine for PCB circuit pre-treatment, including a frame. A board taking module is arranged at the upper end of the frame. A pushing module is arranged at the lower end of the frame and on one side corresponding to the board taking module. A position adjusting module is arranged at the lower end of the frame and at a position corresponding to the lower part of the board taking module. The pushing module includes a support frame, rollers, a belt, a driving motor, a linkage assembly and an infrared sensor I. The pushing module can make the tray of the transfer cart advance to a position along with the grabbing speed of the circuit board. The board taking module includes a servo motor, a control cylinder, a cross beam, a transfer swing arm, a telescopic arm and a board taking assembly. The board taking module can grab and transfer a single circuit board stacked obliquely and vertically. The position adjusting module includes a roller group, an infrared sensor II, a motor, a transmission assembly and an adjusting block. The transfer cart is arranged on one side of the frame.

[0008] Preferably, the support frame is arranged at the rear of the placing position of the circuit board transfer cart. Multiple groups of the rollers are arranged inside the support frame. The driving motor is fixedly installed below the support frame. The infrared sensor I is fixedly installed on the upper surface of the support frame on the side of the rollers close to the board taking module. A linkage assembly is arranged at the lower end of the support frame on the side away from the infrared sensor I. Belts are arranged between the linkage assembly and the rollers.

[0009] Preferably, the board taking module is arranged at the middle position of the board placing machine. The servo motor is fixedly installed on the frame. A control cylinder is arranged on one side of the servo motor. The cross beam is slidably connected to the side of the frame. The transfer swing arm is fixedly installed on the side of the frame away from the pushing module. One end of the transfer swing arm away from the frame is fixedly connected to the cross beam. The free end of the control cylinder is rotatably connected to the transfer swing arm. The telescopic arm is fixedly installed inside the transfer swing arm. The board taking assembly is vertically fixed at the end of the telescopic arm.

[0010] Preferably, the board taking assembly includes a bracket, a mounting frame, suction cups, a position sensor, a separation controller and separation teeth. The bracket is fixedly connected to the end of the telescopic arm by bolts. The mounting frame is fixedly installed in parallel with the bracket. The mounting frame is vertically composed of two longer strips, and horizontally composed of two shorter strips. The four strips, vertical and horizontal, are vertically combined. Four groups of suction cups are respectively vertically fixed at positions close to the connection points of the two horizontal strips and the two vertical strips of the mounting frame. Two groups of position sensors are arranged at the middle positions of the two horizontal strips of the mounting frame. The separation controller is installed at a position adjacent to the position sensor and is electrically connected to the position sensor.

[0011] Preferably, the separation controller includes a second motor, a horizontal moving block and a vertical moving block. A separation tooth is arranged below the separation controller 21. The separation tooth is a tooth-shaped structure with a decreasing thickness arranged in parallel, and its material is high-strength rubber material.

[0012] Preferably, the roller group 23 is arranged on one side of the propulsion module. The second infrared sensor is fixedly installed at both ends of the roller group close to the side of the board taking module. The motor is arranged in the hollow area below the roller group. A transmission component is arranged between the motor and the roller group. The adjusting block is arranged on both sides of the inner wall of the roller group.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting the propulsion module, the board taking module and the position adjusting module, the present utility model improves the efficiency of taking and placing boards, and at the same time avoids the interference of situations such as stacked boards and stuck boards on the circuit board production. The board taking module is provided with a servo motor, a control cylinder, a cross beam, a telescopic arm, a transfer rotating arm and a board taking component. The board taking component is provided with a separation tooth, and the separation tooth is made of rubber material, which can separate the circuit boards closely attached on the transfer vehicle when taking the boards. The board taking module can realize the single-piece grasping and transfer of the circuit boards stacked obliquely and vertically without damaging the circuit boards, avoid the situation of taking multiple boards at a time, reduce the stuck board and other fault problems caused by the stacking and adhesion between multiple circuit boards and the time cost of manual troubleshooting, and improve the circuit board production efficiency.

[0015] 2. By setting the adjusting module, when the circuit board is grasped and placed on the conveyor belt and triggers the sensor signal, the sensor drives the motor to drive the adjusting block on the roller group to adjust the position of the circuit board, so that the circuit board is pushed to a more centered position on the conveyor belt, which will not affect the processing quality of each part of the circuit board in the subsequent processing process, and solves the problems that the non-centered position of the circuit board affects the processing effect and is prone to failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is the overall structure diagram of the board placing machine for PCB line pretreatment of the present utility model;

[0018] Figure 2 It is the structure diagram of the propulsion module of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the board-taking module of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the position adjustment module of the present utility model;

[0021] Figure 5 In the present utility model Figure 3 This is an enlarged schematic structural diagram of the board-taking assembly;

[0022] Figure 6 In the present utility model Figure 5 This is an enlarged schematic structural diagram of the separation controller.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1, frame; 2, propulsion module; 3, board-taking module; 4, position adjustment module; 5, support frame; 6, roller; 7, belt; 8, drive motor; 9, linkage assembly; 10, first infrared sensor; 11, servo motor; 12, control cylinder; 13, cross beam; 14, transfer swing arm; 15, telescopic arm; 16, board-taking assembly; 17, bracket; 18, mounting frame; 19, suction cup; 20, position sensor; 21, separation controller; 22, separation gear; 23, roller group; 24, second infrared sensor; 25, motor; 26, drive assembly; 27, adjustment block; 211, second motor; 212, horizontal moving block; 213, vertical moving block. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 6 , the present utility model provides a technical solution:

[0027] A board placing machine for PCB circuit board pretreatment, including a frame 1, a board taking module 3 is arranged at the upper end of the frame 1, a pushing module 2 is arranged at the lower end of the frame 1 and on one side corresponding to the board taking module 3, and a position adjusting module 4 is arranged at the lower end of the frame 1 and at a position corresponding to the lower part of the board taking module 3. The pushing module 2 includes a support frame 5, rollers 6, a belt 7, a driving motor 8, a linkage assembly 9 and an infrared sensor 10. The pushing module 2 can make the tray of the transfer cart be pushed to the position along with the grasping speed of the circuit board. The board taking module 3 includes a servo motor 11, a control cylinder 12, a cross beam 13, a transfer swing arm 14, a telescopic arm 15 and a board taking assembly 16. The board taking module 3 can grasp and transfer a single circuit board stacked obliquely and vertically. The position adjusting module 4 includes a roller group 23, an infrared sensor 24, a motor 25, a transmission assembly 26 and an adjusting block 27. The transfer cart is arranged on one side of the frame 1.

[0028] Among them, the support frame 5 is arranged behind the placement position of the circuit board transfer cart. Multiple groups of rollers 6 are arranged inside the support frame 5. The driving motor 8 is fixedly installed below the support frame 5. The infrared sensor 10 is fixedly installed on the upper surface of the support frame 5 on the side of the rollers 6 close to the board taking module 3. A linkage assembly 9 is arranged at the lower end of the support frame 5 on the side away from the infrared sensor 10. Belts 7 are arranged between the linkage assembly 9 and the rollers 6. When the pushing module 2 operates, the circuit board is placed on the tray of the transfer cart. If the infrared sensor 10 does not sense the passing signal of the circuit board on the tray, it will link the driving motor 8. The driving motor 8 drives the belt 7 to make the rollers 6 rotate, and the tray storing the circuit board is pushed to the rear position of the pushing module 2 to wait for the board taking module 3 to grasp the circuit board. Through this module, the tray of the transfer cart can be pushed to the position along with the grasping of the circuit board, which is convenient for the operation of the board taking module 3.

[0029] Among them, the board taking module 3 is arranged at the middle position of the board placing machine. The servo motor 11 is fixedly installed on the frame 1. A control cylinder 12 is arranged on one side of the servo motor 11. The cross beam 13 is slidably connected to the side of the frame 1. The transfer swing arm 14 is fixedly installed on the side of the frame 1 away from the pushing module 2. One end of the transfer swing arm 14 away from the frame 1 is fixedly connected to the cross beam 13. The free end of the control cylinder 12 is rotatably connected to the transfer swing arm 14. The telescopic arm 15 is fixedly installed inside the transfer swing arm 14. The board taking assembly 16 is vertically fixed at the end of the telescopic arm 15.

[0030] Among them, the board taking assembly 16 includes a bracket 17, a mounting frame 18, a suction cup 19, a position sensor 20, a separation controller 21 and separation teeth 22. The bracket 17 is fixed to the end of the telescopic arm 15 by bolts. The mounting frame 18 is fixedly arranged in parallel with the bracket 17. The mounting frame 18 is vertically composed of two longer strips, and horizontally composed of two shorter strips. The four vertical and horizontal strips are vertically combined. There are four groups of suction cups 19, which are respectively vertically fixed at the positions near the joints of the two horizontal strips and the two vertical strips of the mounting frame 18. Two groups of position sensors 20 are arranged at the central positions of the two horizontal strips of the mounting frame 18. The separation controller 21 is installed at the adjacent position of the position sensor 20 and is electrically connected to the position sensor 20.

[0031] Among them, the separation controller 21 includes a second motor 211, a horizontal moving block 212 and a vertical moving block 213. The separation teeth 22 are arranged below the separation controller 21. The separation teeth 22 are a tooth-shaped structure with decreasing thickness arranged in parallel, and its material is high-strength rubber material to avoid scratching the circuit board.

[0032] Among them, the roller group 23 is arranged on one side of the propulsion module 2. The second infrared sensor 24 is fixedly installed at both ends of the roller group 23 near the board taking module 3. The motor 25 is arranged in the hollow area below the roller group 23. A transmission component 26 is arranged between the motor 25 and the roller group 23. The adjusting blocks 27 are arranged on both sides of the inner wall of the roller group 23. When the circuit board is grabbed onto the roller group 23, the circuit board triggers the signal of the second infrared sensor 24, driving the motor 25 to drive the roller group 23 and the adjusting blocks 27 to move. The adjusting blocks 27 push the circuit board from both sides of the roller group 23 respectively, so that the circuit board is pushed to the central position of the conveyor belt, and it will not affect the processing quality of each area on the surface of the circuit board in the subsequent processing.

[0033] When the board taking module 3 operates in the present utility model, the servo motor 11 starts to drive the cross beam 13 and the transfer swing arm 14 to move. The transfer swing arm 14 is pushed by the control cylinder 12 to the position where the board taking assembly 16 can grasp the circuit board. The position sensor 20 of the board taking assembly 16 approaches the circuit board and emits a signal, driving the telescopic arm 15 to extend and approach the circuit board. The suction cup 19 presses on the surface of the circuit board for suction. When the distance between the position sensor 20 and the circuit board reaches the induction threshold, the telescopic arm 15 stops extending. At this time, the separation controller 21 receives the signal from the position sensor 20, causing the separation teeth 22 to grasp both sides of the circuit board. The resilient long teeth of the separation teeth 22 will tighten when clamping a circuit board, enabling the board taking assembly 16 to firmly grasp the circuit board. After the circuit board is grasped, the long teeth rebound, causing the separation controller 21 to send a control signal, and then the control cylinder 12 pulls the transfer swing arm 14 to a position perpendicular to the horizontal plane. At this time, the telescopic arm 15 extends. When the position sensor 20 emits a signal when the circuit board moves to a position closer to the roller group 23, the separation controller 21 controls the retraction of the resilient long teeth. The circuit board then falls onto the roller group 23. By setting the transfer swing arm 14, the control cylinder 12, and the telescopic arm 15, the grasping and transfer of the circuit boards stacked obliquely and vertically are realized. By adding the separation controller 21 and the separation teeth 22 to the board taking assembly 16, the adhered and closely attached circuit boards can be separated, realizing the single-piece grasping and transfer of the circuit boards stacked obliquely and vertically, and improving the production efficiency of the circuit boards. When the circuit board is grasped onto the roller group 23, the circuit board triggers the signal of the infrared sensor two 24, driving the motor 25 to drive the roller group 23 and the adjusting block 27 to move. The adjusting block 27 pushes the circuit board from both sides of the roller group 23, so that the circuit board is pushed to the central position of the conveyor belt, without affecting the processing quality of each area on the surface of the circuit board in subsequent processing.

Claims

1. A PCB circuit pre-processing machine, comprising a frame (1), characterized in that: The upper end of the frame (1) is provided with a plate taking module (3), the lower end of the frame (1) and corresponding to the side of the plate taking module (3) is provided with a propulsion module (2), the lower end of the frame (1) and corresponding to the position below the plate taking module (3) is provided with a position adjustment module (4), the propulsion module (2) comprises a support frame (5), a roller (6), a belt (7), a transmission motor (8), a linkage component (9) and an infrared sensor (10), and the propulsion module (2) can enable the pallet of the transfer vehicle to move with the electric The road plate is grasped and pushed into position at a speed, the board taking module (3) comprises a servo motor (11), a control cylinder (12), a crossbeam (13), a transfer arm (14), a telescopic arm (15) and a board taking assembly (16), the board taking module (3) is capable of grasping and transferring a single circuit board stacked obliquely or vertically, the position adjustment module (4) comprises a wheel roller group (23), a second infrared sensor (24), a motor (25), a transmission assembly (26) and an adjustment block (27), and the transfer vehicle is arranged on one side of the frame (1).

2. The PCB circuit pre-processing machine according to claim 1, characterized in that: The support frame (5) is arranged behind the placement position of the circuit board transfer vehicle, a plurality of groups of rollers (6) are arranged on the inner side of the support frame (5), the transmission motor (8) is fixedly installed below the support frame (5), the infrared sensor (10) is fixedly installed on the upper surface of the support frame (5) on the side of the roller (6) close to the board taking module (3), and a linkage component (9) is arranged at the lower end of the support frame (5) away from the infrared sensor (10), and a belt (7) is arranged between the linkage component (9) and the roller (6).

3. The PCB circuit pre-processing machine according to claim 2, characterized in that: The plate taking module (3) is arranged in the middle section of the plate placing machine, the servo motor (11) is fixedly mounted on the frame (1), a control cylinder (12) is arranged on one side of the servo motor (11), the crossbeam (13) is slidably connected to the side of the frame (1), the transfer arm (14) is fixedly mounted on the side of the frame (1) away from the propulsion module (2), the end of the transfer arm (14) away from the frame (1) is fixedly connected to the crossbeam (13), the free end of the control cylinder (12) is rotatably connected to the transfer arm (14), the telescopic arm (15) is fixedly mounted inside the transfer arm (14), and the plate taking assembly (16) is vertically fixed to the end of the telescopic arm (15).

4. The PCB circuit pre-processing machine according to claim 3, characterized in that: The plate taking assembly (16) comprises a bracket (17), a mounting frame (18), a suction cup (19), a position sensor (20), a separation controller (21) and a separation latch (22); the bracket (17) is fixed to the end of the telescopic arm (15) by bolts; the mounting frame (18) is fixed in parallel with the bracket (17); the mounting frame (18) is vertically composed of two long strips with a longer length, horizontally composed of two long strips with a shorter length, and vertically composed of four long strips; the suction cup (19) is provided with four groups, which are respectively vertically fixed at positions close to the connection of the two horizontal strips and the vertical strips of the mounting frame (18); the position sensor (20) is provided with two groups, which are installed at the center position of the two horizontal strips of the mounting frame (18); the separation controller (21) is installed at a position adjacent to the position sensor (20) and is electrically connected to the position sensor (20).

5. The PCB circuit pre-processing machine according to claim 4, characterized in that: The separation controller (21) comprises a second motor (211), a horizontal moving block (212) and a vertical moving block (213); a separation latching tooth (22) is arranged below the separation controller (21); the separation latching tooth (22) is a parallelly arranged latching tooth structure with decreasing thickness and is made of a high-strength rubber material.

6. The PCB circuit pre-processing machine according to claim 1, characterized in that: The roller group (23) is arranged on one side of the propulsion module (2), the infrared sensor 2 (24) is fixedly mounted on one side of both ends of the roller group (23) close to the plate taking module (3), the motor (25) is arranged in a hollow area below the roller group (23), a transmission assembly (26) is arranged between the motor (25) and the roller group (23), and the adjustment block (27) is arranged on both sides of the inner wall of the roller group (23).

Images