Auxiliary feeding mechanism for SMT patch production

Abstract

The invention relates to the technical field of SMT patch production, in particular to an auxiliary feeding mechanism for SMT patch production, which comprises a workbench, a conveying belt is rotatably connected to the workbench, a plurality of mounting seats are fixedly connected to the conveying belt, placing seats are arranged on the mounting seats, diodes are placed on the placing seats, a moving frame is arranged on one side of a rotating frame, and a plurality of feeding holes are formed in the moving frame. A support leg correction block is arranged on the movable frame in a sliding fit mode, a fixing mechanism is arranged on the movable frame in a rotating connection mode, when auxiliary feeding is carried out on diodes, diode image data are collected through a high-definition camera, analysis is carried out through a machine learning model, bent pins are pressurized through the downwards-moving support leg correction block, and the bent pins can be corrected through cooperation with a correction frame below the support leg correction block. According to the pin correcting device, the bent pins can be automatically corrected, the instability of manual correction is eliminated, the auxiliary feeding efficiency is improved, production delay caused by pin problems can be effectively avoided, and smooth operation of a production line is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of SMT patch production, and in particular to an auxiliary feeding mechanism for SMT patch production. Background Art

[0002] SMT is an electronic assembly technology that directly mounts electronic components on the surface of a circuit board rather than connecting them through holes. The most common types of components used in SMT production include:

[0003] Standard surface mount components such as resistors, capacitors, diodes, transistors, etc. Integrated circuits (ICs), such as DIP (dual in-line package) and QFN (no lead package) types of integrated circuits. Surface mount components with pins, such as connectors, sensors, modules, etc.

[0004] In SMT (surface mount technology) patch production, the role of auxiliary feeding mechanism is very important. It helps automated equipment to extract components from trays, tapes, or other types of racks and accurately deliver them to the placement machine, thereby achieving an efficient and precise production process.

[0005] In the prior art, when the diode is assisted in loading, since the pins of the diode are used to connect to the circuit board, if the pins are bent during transportation, storage or loading, the prior art is not convenient for automatically correcting the bent pins, which may affect the welding effect and even cause the diode to be unable to be welded normally or unable to be mounted. The bent pins may cause the mounting machine to be unable to accurately grasp the components, affecting the mounting accuracy.

[0006] In summary, the prior art lacks a technology for automatically identifying and correcting the bending of diode pins during auxiliary loading in SMT patch production. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an auxiliary feeding mechanism for SMT patch production.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is: an auxiliary feeding mechanism for SMT patch production, including a workbench, a conveyor belt is rotatably connected to the workbench, a plurality of mounting seats are fixedly connected to the conveyor belt, a placement seat is provided on the mounting seat, a diode is placed on the placement seat, a fixed frame is fixedly installed on the workbench, a rotating frame is rotatably connected to the fixed frame, a mobile frame is provided on one side of the rotating frame, a leg correction block is slidably provided on the mobile frame, and a fixing mechanism is rotatably connected on the mobile frame.

[0009] Preferably, the inner walls at both ends of the conveyor belt are provided with pulleys for friction transmission, and a fixed seat is rotatably connected to the pulley, and the fixed seat is fixedly connected to the workbench.

[0010] Preferably, two mounting blocks are symmetrically arranged on the mounting seat for sliding fit, a spring is fixedly connected to the inner end of the mounting block, the other end of the spring is fixedly connected to the inner wall of the mounting seat, a pressure rod is fixedly connected to the mounting block, and the pressure rod penetrates the inner wall of the mounting seat for sliding fit.

[0011] Preferably, the bottom end of the placement seat is symmetrically structured with two mounting holes, the mounting holes are movably plugged into the mounting block, a motor A is fixedly connected inside the placement seat, a driving wheel is fixedly connected to the output end of the motor A, both sides of the driving wheel are meshingly provided with driven wheels, an adjusting roller is fixedly connected to the driven wheel, one end of the adjusting roller is rotatably connected to the inner wall of the placement seat, and the outer wall of the adjusting roller is in frictional contact with the outer wall of the diode.

[0012] Preferably, a motor B is fixedly provided at one end of the rotating frame connected to the fixed frame, the motor B is fixedly provided to the fixed frame, and a high-definition camera is installed on the rotating frame.

[0013] Preferably, an electric push rod is fixedly connected to one end of the movable frame, the electric push rod is fixedly connected to the rotating frame, and a correction frame is fixedly connected to the bottom end of the movable frame.

[0014] Preferably, a slider is fixedly connected to one end of the leg correction block, and the slider is slidably matched with the inner wall of the movable frame. A threaded rod is threadedly connected to the slider, and the threaded rod is rotatably connected to the movable frame. A motor C is fixedly connected to the top of the threaded rod, and the motor C is fixedly connected to the movable frame. A transmission rack is fixedly connected to the leg correction block.

[0015] Preferably, the fixing mechanism comprises two connecting rod groups, the top ends of the connecting rod groups are rotatably connected to the moving frame, and a clamping block is rotatably connected between the bottom ends of the two connecting rod groups, and the clamping block abuts against the outer wall of the diode.

[0016] Preferably, a worm wheel is fixedly connected to the top of one of the connecting rod groups, a worm is meshingly transmitted with a worm on one side of the worm wheel, a universal joint is fixedly connected to one end of the worm, fixed blocks are rotatably connected to both ends of the universal joint, the fixed block is fixedly connected to the movable frame, a transmission wheel is fixedly connected to the other end of the universal joint, and the transmission wheel is meshingly transmitted with a transmission rack.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When assisting the loading of diodes, the diode image data is collected through a high-definition camera and analyzed using a machine learning model. When the pins of the diodes are identified to be bent, the bent pins are pressurized using the downward-moving support correction block. Together with the correction frame below, the bent pins can be automatically corrected, eliminating the instability of manual correction, improving the efficiency of assisting loading, and effectively avoiding production delays caused by pin problems, ensuring the smooth operation of the production line.

[0019] 2. By setting a rotatable adjusting roller in the placement seat, the diode can be driven to rotate so that the bent pins of the diode face upward, which is convenient for the support foot correction block to cooperate with the correction frame for correction. The posture of the diode can be accurately controlled by the rotation of the adjusting roller. The degree of automation is high, which reduces the complexity of manual operation. At the same time, with the installation seat, the placement seat can be easily replaced. It is suitable for different types of diodes, reducing the need for multiple equipment or manual adjustment, and improving the efficiency of the production line;

[0020] 3. By setting up a fixing mechanism, the diode can be fixed while the diode pin is being corrected, ensuring the stability of the diode during the correction process and avoiding inaccurate correction due to the instability of the diode. The rotating frame facilitates the correction of the pins at both ends through simple angle adjustment, avoiding tedious manual operations and significantly improving the overall correction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an auxiliary feeding mechanism for SMT patch production according to the present invention;

[0022] Figure 2 It is a partial structural schematic diagram of an auxiliary feeding mechanism for SMT patch production of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a workbench and other parts of an auxiliary feeding mechanism for SMT patch production according to the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of a mounting base of an auxiliary feeding mechanism for SMT patch production according to the present invention;

[0025] Figure 5 It is a partial cross-sectional schematic diagram of a placement seat structure of an auxiliary feeding mechanism for SMT patch production according to the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of a rotating frame of an auxiliary feeding mechanism for SMT patch production according to the present invention;

[0027] Figure 7It is a partial cross-sectional schematic diagram of a movable frame and a support leg correction block structure of an auxiliary feeding mechanism for SMT patch production of the present invention;

[0028] Figure 8 The present invention is a schematic diagram of the fixing mechanism structure of an auxiliary feeding mechanism for SMT patch production.

[0029] The following are marked in the figure: 1. workbench; 2. conveyor belt; 3. mounting seat; 4. placement seat; 5. diode; 6. fixed frame; 7. rotating frame; 8. mobile frame; 9. support leg correction block; 10. fixing mechanism; 201. pulley; 202. fixed seat; 301. mounting block; 302. spring; 303. pressure rod; 401. mounting hole; 402. motor A; 403. driving wheel; 404. driven wheel; 405. adjusting roller; 701. motor B; 702. high-definition camera; 801. electric push rod; 802. correction frame; 901. slider; 902. threaded rod; 903. motor C; 904. transmission rack; 1001. connecting rod group; 1002. clamping block; 1003. worm gear; 1004. worm; 1005. universal joint; 1006. fixed block; 1007. transmission wheel. DETAILED DESCRIPTION

[0030] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0031] like Figure 1-Figure 8 An auxiliary feeding mechanism for SMT patch production shown in the figure includes a workbench 1, a conveyor belt 2 is rotatably connected to the workbench 1, a plurality of mounting seats 3 are fixedly connected to the conveyor belt 2, a placement seat 4 is provided on the mounting seat 3, a diode 5 is placed on the placement seat 4, a fixed frame 6 is fixedly installed on the workbench 1, a rotating frame 7 is rotatably connected to the fixed frame 6, a mobile frame 8 is provided on one side of the rotating frame 7, a support leg correction block 9 is slidably provided on the mobile frame 8, and a fixing mechanism 10 is rotatably connected to the mobile frame 8.

[0032] like Figure 3 As shown, the inner walls at both ends of the conveyor belt 2 are provided with pulleys 201 for friction transmission, and a fixed seat 202 is rotatably connected to the pulley 201, and the fixed seat 202 is connected and fixed to the workbench 1.

[0033] like Figure 4As shown, two mounting blocks 301 are symmetrically arranged on the mounting seat 3 for sliding fit, a spring 302 is connected and fixedly arranged at the inner end of the mounting block 301, and the other end of the spring 302 is connected and fixedly arranged with the inner wall of the mounting seat 3, a pressure rod 303 is connected and fixedly arranged on the mounting block 301, and the pressure rod 303 is slidably arranged through the inner wall of the mounting seat 3. Align the bottom of the placement seat 4 with the mounting seat 3, and then under the action of the spring 302, the mounting block 301 will be inserted into the mounting hole 401 for fixing.

[0034] like Figure 5 As shown, the bottom end of the placement seat 4 is symmetrically structured with two mounting holes 401, and the mounting holes 401 are movably plugged with the mounting block 301. A motor A402 is connected and fixedly arranged inside the placement seat 4, and a driving wheel 403 is connected and fixedly arranged at the output end of the motor A402. Both sides of the driving wheel 403 are meshingly driven with driven wheels 404, and an adjusting roller 405 is connected and fixedly arranged on the driven wheel 404. One end of the adjusting roller 405 is rotatably connected to the inner wall of the placement seat 4, and the outer wall of the adjusting roller 405 is frictionally contacted with the outer wall of the diode 5. The driving wheel 403 connected to the motor A402 is driven to rotate, so that the driving wheel 403 drives the driven wheel 404 to rotate, so that the adjusting roller 405 connected to the driven wheel 404 rotates, and drives the diode 5 to rotate.

[0035] like Figure 6 As shown, one end of the rotating frame 7 connected to the fixed frame 6 is connected and fixedly provided with a motor B701 , the motor B701 is connected and fixedly provided with the fixed frame 6 , and a high-definition camera 702 is installed on the rotating frame 7 .

[0036] like Figure 7 As shown, one end of the mobile frame 8 is connected and fixedly provided with an electric push rod 801, which is connected and fixedly provided with the rotating frame 7, and the bottom end of the mobile frame 8 is connected and fixedly provided with a correction frame 802. The electric push rod 801 drives the mobile frame 8 to move, so that the correction frame 802 moves to the bottom of the bent pin.

[0037] like Figure 7 As shown, a slider 901 is fixedly connected to one end of the leg correction block 9, and the slider 901 is slidably matched with the inner wall of the mobile frame 8. A threaded rod 902 is threadedly connected to the slider 901, and the threaded rod 902 is connected and rotatably connected with the mobile frame 8. A motor C903 is fixedly connected to the top of the threaded rod 902, and the motor C903 is fixedly connected to the mobile frame 8. A transmission rack 904 is fixedly connected to the leg correction block 9. The threaded rod 902 is driven to rotate by the motor C903, so that the threaded rod 902 can drive the leg correction block 9 connected to the slider 901 to move downward.

[0038] like Figure 8As shown, the fixing mechanism 10 includes two connecting rod groups 1001 , the top of the connecting rod group 1001 is rotatably connected to the moving frame 8 , and a clamping block 1002 is rotatably connected between the bottom ends of the two connecting rod groups 1001 , and the clamping block 1002 abuts against the outer wall of the diode 5 .

[0039] A worm wheel 1003 is fixedly connected to the top of one of the connecting rod groups 1001, a worm 1004 is meshed and driven on one side of the worm wheel 1003, a universal joint 1005 is fixedly connected to one end of the worm 1004, a fixed block 1006 is rotatably connected to both ends of the universal joint 1005, the fixed block 1006 is connected and fixed to the moving frame 8, a transmission wheel 1007 is fixedly connected to the other end of the universal joint 1005, and the transmission wheel 1007 is meshed and driven with the transmission rack 904. The transmission rack 904 on the support leg correction block 9 will drive the transmission wheel 1007 to rotate, so that the transmission wheel 1007 drives the connected universal joint 1005 to rotate, so that the universal joint 1005 drives the connected worm 1004 to rotate, so that the worm 1004 can drive the connecting rod group 1001 connected to the worm wheel 1003 to rotate, and drive the pressing block 1002 to move downward.

[0040] Working principle: When SMT patch production is required, the diode 5 needs to be loaded. First, the placement seat 4 corresponding to the size of the diode 5 is installed on the mounting seat 3, and the bottom of the placement seat 4 is aligned with the mounting seat 3. Then, under the action of the spring 302, the mounting block 301 is inserted into the mounting hole 401 for fixing. Then, the fixing frame 6 of the mounting leg correction block 9 is installed on the workbench 1;

[0041] Then the diode 5 to be loaded is placed on the placement seat 4 and intermittently loaded through the conveyor belt 2. At this time, the image data of the diode 5 is collected by the high-definition camera 702. These images can accurately capture the shape, size and pin status of the diode 5. Through the data after image collection, a machine learning model such as a convolutional neural network, CNN, can analyze the image and identify whether the pin of the diode 5 is bent. The model can learn how to distinguish between normal pins and bent pins by training a large number of sample images;

[0042] Then, when the bent pin is identified, the motor A402 is first used to drive the connected driving wheel 403 to rotate, so that the driving wheel 403 drives the driven wheel 404 to rotate, so that the adjusting roller 405 connected to the driven wheel 404 rotates, and drives the diode 5 to rotate, so that the bent pin faces upward;

[0043] The motor B701 is used to drive the rotating frame 7 to rotate, so that the support leg correction block 9 rotates to the side of the bent pin, and then the electric push rod 801 is used to drive the moving frame 8 to move, so that the correction frame 802 moves to the bottom of the bent pin;

[0044] Then, the motor C903 is used to drive the threaded rod 902 to rotate, so that the threaded rod 902 can drive the support leg correction block 9 connected to the slider 901 to move downward. At this time, the transmission rack 904 on the support leg correction block 9 will drive the transmission wheel 1007 to rotate, so that the transmission wheel 1007 drives the connected universal joint 1005 to rotate, and the universal joint 1005 drives the connected worm 1004 to rotate, so that the worm 1004 can drive the connecting rod group 1001 connected to the worm wheel 1003 to rotate, drive the clamping block 1002 to move downward, pressurize and fix the diode 5, and then the support leg correction block 9 that continues to move downward can contact and squeeze the bent pin until the support leg correction block 9 contacts the correction frame 802 to complete the correction.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary feeding mechanism for SMT patch production, comprising a workbench (1), characterized in that: A conveyor belt (2) is rotatably connected to the workbench (1), a plurality of mounting seats (3) are fixedly connected to the conveyor belt (2), a placement seat (4) is provided on the mounting seat (3), a diode (5) is placed on the placement seat (4), a fixed frame (6) is fixedly installed on the workbench (1), a rotating frame (7) is rotatably connected to the fixed frame (6), a mobile frame (8) is provided on one side of the rotating frame (7), a support leg correction block (9) is slidably matched to the mobile frame (8), and a fixing mechanism (10) is rotatably connected to the mobile frame (8).

2. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: The inner walls at both ends of the conveyor belt (2) are provided with pulleys (201) for friction transmission, and a fixed seat (202) is rotatably connected to the pulley (201), and the fixed seat (202) is connected and fixed to the workbench (1).

3. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: The mounting seat (3) is provided with two mounting blocks (301) in a symmetrical structure and in sliding cooperation. A spring (302) is fixedly connected to the inner end of the mounting block (301). The other end of the spring (302) is fixedly connected to the inner wall of the mounting seat (3). A pressure rod (303) is fixedly connected to the mounting block (301). The pressure rod (303) penetrates the inner wall of the mounting seat (3) and is in sliding cooperation.

4. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: The bottom end of the placement seat (4) is symmetrically structured and has two mounting holes (401), the mounting holes (401) are movably plugged with the mounting block (301), a motor A (402) is fixedly connected inside the placement seat (4), a driving wheel (403) is fixedly connected to the output end of the motor A (402), both sides of the driving wheel (403) are meshingly driven with driven wheels (404), an adjusting roller (405) is fixedly connected to the driven wheel (404), one end of the adjusting roller (405) is rotatably connected to the inner wall of the placement seat (4), and the outer wall of the adjusting roller (405) is frictionally contacted with the outer wall of the diode (5).

5. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: One end of the rotating frame (7) connected to the fixed frame (6) is connected and fixedly provided with a motor B (701), the motor B (701) is connected and fixedly provided with the fixed frame (6), and a high-definition camera (702) is installed on the rotating frame (7).

6. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: An electric push rod (801) is fixedly connected to one end of the movable frame (8), the electric push rod (801) is fixedly connected to the rotating frame (7), and a correction frame (802) is fixedly connected to the bottom end of the movable frame (8).

7. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: A slider (901) is fixedly provided at one end of the support leg correction block (9), the slider (901) is slidably matched with the inner wall of the moving frame (8), a threaded rod (902) is threadedly provided on the slider (901), the threaded rod (902) and the moving frame (8) are rotatably connected, a motor C (903) is fixedly provided at the top end of the threaded rod (902), the motor C (903) is fixedly provided with the moving frame (8), and a transmission rack (904) is fixedly provided on the support leg correction block (9).

8. The auxiliary feeding mechanism for SMT patch production according to claim 1, characterized in that: The fixing mechanism (10) comprises two connecting rod groups (1001), the top ends of the connecting rod groups (1001) being rotatably connected to the moving frame (8), and a pressing block (1002) being rotatably connected between the bottom ends of the two connecting rod groups (1001), the pressing block (1002) being in contact with the outer wall of the diode (5).

9. The auxiliary feeding mechanism for SMT patch production according to claim 8, characterized in that: A worm wheel (1003) is fixedly connected to the top of one of the connecting rod groups (1001), a worm (1004) is meshingly arranged on one side of the worm wheel (1003), a universal joint (1005) is fixedly arranged on one end of the worm (1004), a fixed block (1006) is rotatably connected to both ends of the universal joint (1005), the fixed block (1006) is fixedly connected to the moving frame (8), a transmission wheel (1007) is fixedly arranged on the other end of the universal joint (1005), and the transmission wheel (1007) is meshingly arranged with the transmission rack (904).

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