Automatic detection machine for welding appearance of PCB (Printed Circuit Board) milling cutter or tooth needle

Abstract

The invention relates to the technical field of machining, in particular to a PCB milling cutter or tooth needle welding appearance automatic detection machine which comprises a finished product feeding work station, the finished product feeding work station is used for feeding milling cutters or tooth needles and comprises a vibration disc, and a conveying channel is arranged on one side of the vibration disc. According to the invention, the function of rapidly and automatically detecting the welding appearance of the PCB milling cutter or tooth needle can be realized, the detection efficiency is high, the manual participation is less, and the production cost is low; the light source and the industrial camera are used for shooting, scanning and detecting the PCB milling cutter or the tooth needle, so that the detection accuracy of the PCB milling cutter or the tooth needle is improved, the phenomena of missing detection and error detection are reduced, and the quality of batch PCB milling cutter or tooth needle products is ensured.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to an automatic inspection machine for the appearance of PCB milling cutters or dental pins. Background Technology

[0002] Currently, the main method for visual inspection of PCB milling cutters or dental pins is manual inspection. However, prolonged inspection can lead to visual fatigue among operators, resulting in missed or incorrect inspections. Consequently, the quality of batches of PCB milling cutters or dental pins cannot be guaranteed. Furthermore, the inspection speed is slow, production efficiency is low, and a large amount of manual labor is required, leading to high production costs.

[0003] Therefore, to address the problems of unreliable product quality, low production efficiency, and high production cost caused by manual visual inspection of PCB milling cutters or dental pins in existing technologies, an automatic inspection machine for the weld appearance of PCB milling cutters or dental pins is provided. This machine offers high accuracy, high production efficiency, and low production cost. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an automatic inspection machine for the appearance of PCB milling cutters or dental pins, so as to solve the problem of low inspection quality of milling cutters or dental pins mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic inspection machine for the appearance of PCB milling cutters or dental pins, comprising: a finished product loading workstation for loading milling cutters or dental pins, the finished product loading workstation including a vibratory feeder, a conveying channel on one side of the vibratory feeder, an optical fiber sensor on one side of the conveying channel, a pre-feeding channel on one side of the optical fiber sensor, a feeding cylinder at the bottom of the pre-feeding channel, a V-groove on one side of the feeding cylinder, and a transverse movement module at one end of the V-groove; a vision inspection workstation on one side of the finished product loading workstation for photographic inspection of the milling cutters or dental pins; an unloading workstation on one side of the vision inspection workstation for unloading the milling cutters or dental pins; and an equipment frame surrounding the unloading workstation, the equipment frame serving as the finished product loading workstation, the vision inspection workstation, and the unloading workstation.

[0006] Preferably: the vibratory feeder is connected to the equipment frame; one end of the conveying channel is connected to the discharge end of the vibratory feeder; the other end of the conveying channel is connected to the pre-feeding channel; the fiber optic sensor is connected to the pre-feeding channel and can detect the pre-feeding channel; the pre-feeding channel is connected to the V-groove; the transverse module is connected to the feeding cylinder; one end of the V-groove is connected to the transverse module; and the transverse module is connected to the equipment frame.

[0007] Preferably, the visual inspection workstation includes an inspection table, a rotary motor is provided on one side of the inspection table, a stand is provided on one side of the rotary motor, an industrial camera is provided on the side of the stand, and an illumination source is provided at one end of the industrial camera.

[0008] Preferably, one end of the testing platform is in contact with another end of the testing platform, the testing platform is rotatably connected to the upright, the working end of the rotary motor is connected to the testing platform, the rotary motor is fixed to the equipment frame by a bracket, the upright is connected to the equipment frame, and the industrial camera and lighting source are connected to the upright.

[0009] Preferably, the unloading workstation includes an unloading trough, a material distribution cylinder assembly is provided on one side of the unloading trough, a defective product box is provided on the side of the material distribution cylinder assembly, a good product box is provided on one side of the defective product box, and a pusher cylinder assembly is provided on one side of the good product box.

[0010] Preferably, one end of the unloading chute is in contact with the testing platform, the dispensing cylinder assembly is connected to the unloading chute, the defective product box is connected to the side of the dispensing cylinder assembly, the good product box is connected to one end of the dispensing cylinder assembly, and the pushing cylinder assembly is connected to the good product box.

[0011] Preferably, the unloading chute, defective product box, good product box, and pusher cylinder assembly are all connected to the equipment frame.

[0012] Preferably, there are two sets of defective product boxes, and the two sets of defective product boxes are symmetrically distributed on both sides of the dispensing cylinder assembly.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This automatic inspection machine for the appearance of PCB milling cutters or pins is equipped with a vision inspection workstation and an unloading workstation. Traditional manual visual inspection of the solder appearance of PCB milling cutters or pins leads to inconsistent product quality, low production efficiency, and high production costs. In the corresponding vision inspection workstation design, after the milling cutter or pin is conveyed to the inspection table by the finished product loading workstation, the computer controls the rotary motor to start, which in turn drives the inspection table through the working end. The machine tool rotates 60 degrees evenly, dividing the circle into six equal parts. Each 60-degree rotation, an industrial camera takes a picture to scan and inspect the milling cutter or threaded pin. The images are compared to determine product quality. If the inspection is successful, the computer sends an activation signal to the transverse module. Upon receiving the signal, the transverse module uses an internal push rod to push the milling cutter or threaded pin from the inspection table into the unloading groove. The cutter or pin then passes through the unloading groove and the distribution cylinder assembly into the good product box. The pushing cylinder assembly then pushes the qualified milling cutters or threaded pins into the box. The defective products are temporarily stored in the good product box. When the computer detects that the milling cutter or tin is defective, it sends an opening signal to both the traverse module and the dispensing cylinder assembly. Upon receiving the opening signal, the dispensing cylinder assembly opens its internal stop. At this time, the milling cutter or tin pushed into the unloading slot by the traverse module cannot pass through the dispensing cylinder assembly into the good product box because the stop is open. Instead, it is intercepted by the stop and slides into the defective product box, thus completing the collection of defective products. This vision inspection workstation and unloading workstation design enables rapid and automated inspection of the solder appearance of PCB milling cutters or tins, with high inspection efficiency, minimal manual intervention, and low production costs. Using a light source and an industrial camera to perform video scanning inspection of PCB milling cutters or tins improves the accuracy of PCB milling cutter or tin product inspection, reduces missed and incorrect inspections, and ensures the quality of batch PCB milling cutters or tins. The computer is equipped with storage software to store the scanned images of PCB milling cutters or tins, facilitating inspection and verification.

[0015] 2. This automatic inspection machine for the appearance of PCB milling cutters or pins is equipped with a finished product loading workstation. In actual use, unwanted milling cutters or pins can be directly poured into the vibratory feeder. The vibratory feeder processes and outputs neatly arranged milling cutters or pins onto the conveyor channel. The conveyor channel transports the milling cutters or pins to the preparation channel. When a fiber optic sensor detects milling cutters or pins on the preparation channel, it sends a signal to control the feeding cylinder to open. The feeding cylinder extends in a staggered manner to feed the milling cutters or pins on the preparation channel into the V-groove below. Then, the transverse module starts to push the milling cutters or pins on the V-groove into the inspection table in the vision inspection workstation. This finished product loading workstation design can reduce the labor intensity of personnel. Only the tilting of milling cutters or pins needs to be completed, eliminating the need to sort and organize a large number of milling cutters or pins. This reduces labor costs and facilitates the subsequent inspection of milling cutters or pins by the vision inspection workstation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall two-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the finished product loading workstation of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the visual inspection workstation part of the present invention;

[0020] Figure 5 This is a schematic diagram of the unloading workstation part of the present invention;

[0021] Figure 6 This is a schematic diagram of the detection workflow of the present invention.

[0022] In the diagram: 01. Finished product loading station; 11. Vibratory feeder; 12. Conveying channel; 13. Fiber optic sensor; 14. Preparatory channel; 15. Feeding cylinder; 16. V-groove; 17. Lateral movement module; 02. Vision inspection station; 21. Inspection table; 22. Rotary motor; 23. Industrial camera; 24. Lighting source; 25. Stand; 03. Unloading station; 31. Unloading chute; 32. Distributing cylinder assembly; 33. Defective product box; 34. Good product box; 35. Pushing cylinder assembly; 04. Equipment frame. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-6 An embodiment of the present invention provides an automatic inspection machine for the appearance of PCB milling cutters or dental pins, comprising: a finished product loading workstation 01, which is used to load milling cutters or dental pins; the finished product loading workstation 01 includes a vibratory feeder 11; a conveying channel 12 is provided on one side of the vibratory feeder 11; a fiber optic sensor 13 is provided on one side of the conveying channel 12; a pre-feeding channel 14 is provided on one side of the fiber optic sensor 13; and a feeding cylinder 15 is provided at the bottom of the pre-feeding channel 14. A V-groove 16 is provided on the side, and a transverse moving module 17 is provided at one end of the V-groove 16; a vision inspection workstation 02 is provided on one side of the finished product loading workstation 01, which is used to perform photographic inspection of the milling cutter or dental needle; an unloading workstation 03 is provided on one side of the vision inspection workstation 02, which is used to unload the milling cutter or dental needle; an equipment frame 04 is provided outside the unloading workstation 03, which is used for the finished product loading workstation 01, the vision inspection workstation 02 and the unloading workstation 03.

[0025] Vibratory feeder 11 is connected to the equipment frame 04. One end of conveying channel 12 is connected to the discharge end of vibratory feeder 11, and the other end of conveying channel 12 is connected to pre-feeding channel 14. Fiber optic sensor 13 is connected to pre-feeding channel 14 and can detect pre-feeding channel 14. Pre-feeding channel 14 is connected to V-groove 16. Transverse module 17 is connected to feeding cylinder 15. One end of V-groove 16 is connected to transverse module 17, which is connected to equipment frame 04. Transverse module 17 includes push rod and drive assembly. Through the action of drive assembly, push rod can push milling cutter or serration in V-groove 16. The PCB milling cutter or dentist moves on the groove 16 and the inspection table 21. In actual operation, the manual PCB milling cutter or dentist is randomly placed into the vibratory feeder 11. The vibration of the vibratory feeder 11 organizes and transports the cutter or dentist into the conveying channel 12, and then into the preparation channel 14. The fiber optic sensor 13 will detect the preparation channel 14. When the preparation channel 14 detects a milling cutter or dentist on the fiber optic sensor 13, it will activate the feeding cylinder 15. The feeding cylinder 15 extends outward and pushes the milling cutter or dentist on the preparation channel 14 into the lower V groove 16. Then, the transverse module 17 pushes the milling cutter or dentist on the V groove 16 into the inspection table 21.

[0026] The visual inspection workstation 02 includes an inspection table 21. A rotary motor 22 is installed on one side of the inspection table 21, and a stand 25 is installed on the other side of the rotary motor 22. An industrial camera 23 is installed on the side of the stand 25. An illumination source 24 is installed at one end of the industrial camera 23. The illumination source 24 is used to illuminate the milling cutter or dental needle on the inspection table 21, thereby improving the clarity of the image taken by the industrial camera 23 and ensuring the effectiveness of the inspection of the milling cutter or dental needle. A through slot is provided at the center of the illumination source 24, and the industrial camera 23 takes pictures of the milling cutter or dental needle on the inspection table 21 through the through slot of the illumination source 24.

[0027] One end of the inspection table 21 contacts the other end of the inspection table 21. The inspection table 21 is rotatably connected to the stand 25. The working end of the rotary motor 22 is connected to the inspection table 21. The rotary motor 22 is fixed to the equipment frame 04 by a bracket. The stand 25 is connected to the equipment frame 04. The industrial camera 23 and the lighting source 24 are connected to the stand 25. The rotary motor 22 drives the inspection table 21 to rotate. The rotation of the inspection table 21 will drive the milling cutter or dentist on it to rotate. By rotating evenly by 60 degrees in six equal parts, the industrial camera 23 takes a picture once every 60 degrees of rotation. After the camera scans and inspects the PCB milling cutter or dentist, the image of the qualified milling cutter or dentist stored in the computer is compared with the current image of the milling cutter or dentist through an externally connected computer. When the images are indistinguishable, the inspection is qualified. When the images are indistinguishable, the inspection is unqualified.

[0028] The unloading workstation 03 includes an unloading chute 31. A material distribution cylinder assembly 32 is provided on one side of the unloading chute 31. A defective product box 33 is provided on the side of the material distribution cylinder assembly 32. A good product box 34 is provided on one side of the defective product box 33. A pusher cylinder assembly 35 is provided on one side of the good product box 34. The pusher cylinder assembly 35 contains a cylinder and a pusher plate. By pushing the pusher plate with the cylinder, the milling cutter or threaded needle in the good product box 34 can be pushed to one end of the good product box 34. This operation is to prevent qualified milling cutters or threaded needles from accumulating at the connection position between the material distribution cylinder assembly 32 and the good product box 34, and to ensure that subsequent milling cutters or threaded needles can enter.

[0029] One end of the unloading chute 31 contacts the inspection table 21. The dispensing cylinder assembly 32 is connected to the unloading chute 31. The defective product box 33 is connected to the side of the dispensing cylinder assembly 32. The good product box 34 is connected to one end of the dispensing cylinder assembly 32. The pushing cylinder assembly 35 is connected to the good product box 34. When the inspection is qualified, the computer will send an opening signal to the transverse module 17. After receiving the opening signal, the transverse module 17 will push the milling cutter or dental needle from the inspection table 21 into the unloading chute 31 through the internal push rod. At this time, the milling cutter or dental needle will pass through the unloading chute 31 and the dispensing cylinder assembly 32 and enter the good product box 34. The pushing action of the cylinder assembly 35 will temporarily store the qualified milling cutters or dental needles in the good product box 34. When the computer detects that the milling cutter or dental needle is unqualified, the computer will send an opening signal to the transverse module 17 and an opening signal to the dispensing cylinder assembly 32. Upon receiving the opening signal, the dispensing cylinder assembly 32 will open the internal stop. At this time, the milling cutter or dental needle pushed by the transverse module 17 from the unloading groove 31 cannot enter the good product box 34 through the dispensing cylinder assembly 32 due to the opening of the stop. Instead, it will be intercepted by the stop and slide into the defective product box 33, thus completing the collection of unqualified products.

[0030] The unloading chute 31, defective product box 33, good product box 34, and pusher cylinder assembly 35 are all connected to the equipment frame 04. The dispensing cylinder assembly 32 contains a cylinder and a baffle. When the dispensing cylinder assembly 32 receives an opening signal from the computer, the cylinder will drive the baffle to open. At this time, the milling cutter or toothed needle that enters the dispensing cylinder assembly 32 through the unloading chute 31 will be blocked by the baffle and enter the defective product box 33 from the side of the dispensing cylinder assembly 32, thereby completing the collection of defective products. After that, the baffle will reset. When the dispensing cylinder assembly 32 is not started, the milling cutter or toothed needle that passes through the unloading chute 31 and then the dispensing cylinder assembly 32 will directly enter the good product box 34.

[0031] Two sets of defective product boxes 33 are provided, and the two sets of defective product boxes 33 are symmetrically distributed on both sides of the dispensing cylinder assembly 32. The computer is set at the bottom of the equipment frame 04, and the computer controls the various components in the overall structure through control and calculation.

[0032] Working Principle: Traditional manual visual inspection of PCB milling cutters or pins results in inconsistent product quality, low production efficiency, and high costs. In the corresponding vision inspection workstation 02, after the milling cutter or pin is transported to the inspection table 21 by the finished product loading workstation 01, the computer drives the rotary motor 22 to start. The rotary motor 22 then drives the inspection table 21 to rotate evenly by 60 degrees in six equal parts. Each 60-degree rotation is captured by the industrial camera 23. A single camera scan inspects the milling cutter or dental needle, and the captured images are compared to determine product quality. If the inspection is successful, the computer sends an activation signal to the transverse module 17. Upon receiving the signal, the transverse module 17 uses an internal push rod to push the milling cutter or dental needle from the inspection table 21 into the unloading groove 31. The cutter or needle then passes through the unloading groove 31 and the dispensing cylinder assembly 32 into the good product box 34. The pushing action of the pushing cylinder assembly 35 temporarily stores the qualified milling cutters or dental needles in the good product box 34. When the computer detects a defective milling cutter or threaded pin, it sends an activation signal to both the transverse module 17 and the dispensing cylinder assembly 32. Upon receiving the activation signal, the dispensing cylinder assembly 32 opens its internal stop. At this time, the milling cutter or threaded pin, pushed by the transverse module 17 from the unloading slot 31, cannot pass through the dispensing cylinder assembly 32 into the good product box 34 due to the open stop. Instead, it is intercepted by the stop and slides into the defective product box 33. This completes the collection of defective products. This visual inspection workstation 02 and the unloading process... The design of Station 03 enables rapid and automated inspection of the solder appearance of PCB milling cutters or dental pins, resulting in high inspection efficiency, minimal manual intervention, and low production costs. Utilizing a light source and industrial camera 23 for image scanning inspection of PCB milling cutters or dental pins improves the accuracy of inspection, reduces missed or incorrect detections, and ensures the quality of batches of PCB milling cutters or dental pins. The computer is equipped with storage software to store images of the scanned PCB milling cutters or dental pins for easy inspection and verification.In practical use, unwanted milling cutters or dental needles can be directly poured into the vibratory feeder 11. The vibratory feeder 11 processes and outputs neatly arranged milling cutters or dental needles onto the conveyor channel 12. The conveyor channel 12 then transports the milling cutters or dental needles to the preparation channel 14. When the fiber optic sensor 13 detects milling cutters or dental needles on the preparation channel 14, it sends a signal to control the feeding cylinder 15 to open. The feeding cylinder 15 extends in a staggered manner to feed the milling cutters or dental needles on the preparation channel 14 into the V-groove 16 below. Then, the transverse module 17 starts to push the milling cutters or dental needles on the V-groove 16 onto the inspection table 21 in the vision inspection workstation 02. This finished product loading workstation 01 design can reduce the labor intensity of personnel, who only need to complete the tilting of milling cutters or dental needles, eliminating the need to sort and organize a large number of milling cutters or dental needles. This reduces labor costs and facilitates the subsequent inspection of milling cutters or dental needles by the vision inspection workstation 02.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic inspection machine for the appearance of PCB milling cutter or dental pin soldering, characterized in that, include: Finished product loading workstation (01), the finished product loading workstation (01) is used to load milling cutters or dental needles, the finished product loading workstation (01) includes a vibratory feeder (11), a conveying channel (12) is provided on one side of the vibratory feeder (11), an optical fiber sensor (13) is provided on one side of the conveying channel (12), a preparatory channel (14) is provided on one side of the optical fiber sensor (13), a feeding cylinder (15) is provided at the bottom of the preparatory channel (14), a V-groove (16) is provided on one side of the feeding cylinder (15), and a transverse module (17) is provided at one end of the V-groove (16). A visual inspection workstation (02) is provided on one side of the finished product loading workstation (01), and the visual inspection workstation (02) is used to take pictures and inspect the milling cutter or the dental needle; A material unloading workstation (03) is provided on one side of the vision inspection workstation (02), and the material unloading workstation (03) is used to unload milling cutters or dental needles; The unloading workstation (03) is externally provided with an equipment frame (04), which is used for the finished product loading workstation (01), the visual inspection workstation (02) and the unloading workstation (03).

2. The automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 1, characterized in that: The vibratory feeder (11) is connected to the equipment frame (04). One end of the conveying channel (12) is connected to the discharge end of the vibratory feeder (11), and the other end of the conveying channel (12) is connected to the pre-feed channel (14). The fiber optic sensor (13) is connected to the pre-feed channel (14) and can detect the pre-feed channel (14). The pre-feed channel (14) is connected to the V-groove (16). The transverse module (17) is connected to the feeding cylinder (15). One end of the V-groove (16) is connected to the transverse module (17), and the transverse module (17) is connected to the equipment frame (04).

3. The automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 1, characterized in that: The visual inspection workstation (02) includes an inspection table (21), a rotary motor (22) is provided on one side of the inspection table (21), a stand (25) is provided on one side of the rotary motor (22), an industrial camera (23) is provided on the side of the stand (25), and an illumination source (24) is provided at one end of the industrial camera (23).

4. The automatic inspection machine for the appearance of PCB milling cutter or dental pin soldering according to claim 3, characterized in that: One end of the testing platform (21) is in contact with the other end of the testing platform (21). The testing platform (21) is rotatably connected to the stand (25). The working end of the rotary motor (22) is connected to the testing platform (21). The rotary motor (22) is fixed to the equipment frame (04) by a bracket. The stand (25) is connected to the equipment frame (04). The industrial camera (23) and the lighting source (24) are connected to the stand (25).

5. The automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 1, characterized in that: The unloading workstation (03) includes an unloading trough (31), a dispensing cylinder assembly (32) is provided on one side of the unloading trough (31), a defective box (33) is provided on the side of the dispensing cylinder assembly (32), a good box (34) is provided on one side of the defective box (33), and a pushing cylinder assembly (35) is provided on one side of the good box (34).

6. The automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 5, characterized in that: One end of the unloading trough (31) is in contact with the testing table (21), the dispensing cylinder assembly (32) is connected to the unloading trough (31), the defective box (33) is connected to the side of the dispensing cylinder assembly (32), the good box (34) is connected to one end of the dispensing cylinder assembly (32), and the pushing cylinder assembly (35) is connected to the good box (34).

7. An automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 5, characterized in that: The unloading chute (31), defective product box (33), good product box (34) and pusher cylinder assembly (35) are all connected to the equipment frame (04).

8. An automatic inspection machine for the appearance of PCB milling cutter or tin soldering according to claim 5, characterized in that: The defective product box (33) is provided in two sets, and the two sets of defective product boxes (33) are symmetrically distributed on both sides of the dispensing cylinder assembly (32).

Images