Full-automatic appearance defect and size detection equipment for thrust washer

Abstract

This utility model relates to the field of testing equipment technology, and discloses a fully automatic appearance defect and dimensional inspection device for thrust gaskets. It includes a vibratory feeder base, an inspection machine base, a support base, and a vibratory feeder. A first inspection belt is mounted on the top of the inspection machine base. A cylinder pushing mechanism is installed between the vibratory feeder and the first inspection belt. The first inspection belt is equipped with a proximity switch, a 2.5D vision station, air blowers for NG (non-compliant) inner and outer diameters, air blowers for NG (non-compliant) appearance, and air blowers for compliant appearance. A second inspection belt is mounted on the top of the inspection machine base. Compared with traditional manual inspection methods, this utility model can greatly improve inspection efficiency and fully meet the urgent need for rapid product inspection in large-scale production scenarios. Through efficient inspection, it can quickly and comprehensively screen thrust gaskets produced in batches, promptly and accurately identify non-conforming products, and effectively prevent non-conforming products from entering subsequent production stages.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, specifically, it relates to a fully automatic equipment for detecting appearance defects and dimensions of thrust pads. Background Technology

[0002] A thrust shim is a component used to withstand axial forces, primarily for connecting and supporting parts in a transmission system to ensure their proper operation. Thrust shims are typically made of high-strength materials, such as metals or composites, to ensure their durability and stability. During the manufacturing process, thrust shims may exhibit surface defects such as scratches, deformation, missing material, dents, rust, or lack of wear, and dimensional deviations may also exceed permissible limits.

[0003] Currently, the inspection of thrust pads relies heavily on manual sampling, resulting in low quality control efficiency and making it difficult to conduct comprehensive and accurate inspections of mass-produced thrust pads, thus failing to adequately guarantee product quality. Although some automated inspection equipment has emerged in the market, some of these devices require the use of different apparatuses for inspecting appearance defects and dimensions, leading to cumbersome inspection processes. This results in an inability to achieve an ideal balance between inspection accuracy and speed, failing to meet the requirements of efficient and precise production in modern industry.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An automated appearance defect and dimensional inspection device for thrust pads includes a vibratory feeder base, an inspection machine base, a support base, and a vibratory feeder. The top of the inspection machine base is equipped with an inspection belt (Section 1). A cylinder-driven material pushing mechanism is installed between the vibratory feeder and the inspection belt (Section 1). The inspection belt (Section 1) is equipped with a proximity switch (Section 1), a 2.5D vision station (Section 1), an air blower for NG (Not Tolerant) inner and outer diameters, an air blower for NG (Not Tolerant) appearance, and an air blower for NG (Not Tolerant) appearance. The top of the inspection machine base is equipped with an inspection belt (Section 2). A flip-over slide is located at the end of the inspection belt (Section 1) and is positioned above the inspection belt (Section 2). The inspection belt (Section 2) is equipped with a proximity switch (Section 2), a 2.5D vision station (Section 2), an air blower for NG (Not Tolerant) appearance, an air blower for NG (Not Tolerant) appearance, an air blower for NG (Not Tolerant) appearance, and an air blower for NG (Not Tolerant) appearance. The top of the inspection machine base is equipped with a glass turntable. The end of the belt guide plate is positioned on the glass turntable. The glass turntable is equipped with a fiber optic through-beam switch, a thickness laser probe, an air blower for NG (Not Tolerant) thickness, and an air blower for NG (Not Tolerant) thickness.

[0007] In a preferred embodiment of this utility model, a vibratory feeder upper frame is installed on the top of the vibratory feeder base frame, a testing machine upper frame is installed on the top of the testing machine base frame, a protective frame is installed on the top of the support base frame, and the testing machine base frame is located between the vibratory feeder base frame and the support base frame.

[0008] In a preferred embodiment of the present invention, a vibratory storage bin is installed on the top of the vibratory feeder base frame, the vibratory feeder is installed on the vibratory feeder base frame, and the vibratory feeder is connected to the vibratory storage bin.

[0009] In a preferred embodiment of the present invention, the 2.5D vision station one includes a 2.5D camera one and a four-zone light source one, and the 2.5D vision station two includes a 2.5D camera two and a four-zone light source two.

[0010] In a preferred embodiment of the present invention, the top of the testing machine base is provided with a receiving box 1, a receiving box 2 and a receiving box 3. The receiving box 1 is located below the end of the testing belt 1, the receiving box 2 is located below the end of the testing belt 2, and the receiving box 3 is located below the side of the glass turntable.

[0011] In a preferred embodiment of this utility model, a conveyor belt is installed on the top of the testing machine frame. The conveyor belt is located on one side of the glass turntable and on the other side of the qualified air blower. A counting probe and a guide limit plate are provided on the conveyor belt.

[0012] In a preferred embodiment of this utility model, the end of the conveyor belt is located above the support base, and a rod storage bin is provided on the top of the support base, with 24 rods provided on the rod storage bin.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention, through the establishment of two 2.5D vision stations, can automatically identify the shape features of the thrust gaskets. By setting and adjusting the transport line consisting of inspection belt one, inspection belt two, and a flip-over slide, and the multispectral CCD image detection method comprised of the two 2.5D vision stations, the product achieves excellent detection speed. It can efficiently and accurately identify appearance defects in thrust gaskets and measure their dimensions. Compared to traditional manual inspection methods, it greatly improves inspection efficiency and fully meets the urgent need for rapid product inspection in large-scale production scenarios. Through efficient inspection, a comprehensive screening of thrust gaskets produced in batches can be quickly carried out, timely and accurately identifying defective products and effectively preventing them from entering subsequent production stages.

[0015] This invention effectively prevents defective products from being mixed with qualified products by blowing out defective products. This avoids the introduction of defective thrust pads in subsequent assembly stages, which could lead to a decline in the performance of the entire assembly or even malfunctions. It ensures that each stage of the production process can proceed smoothly according to the established quality standards.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the main structure of the fully automatic appearance defect and size detection equipment for thrust pads of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the fully automatic appearance defect and size detection equipment for thrust pads according to this utility model.

[0020] Figure 3 This is a top view of the fully automatic appearance defect and size detection equipment for thrust pads according to this utility model.

[0021] Figure 4 This is a schematic diagram of the base structure of the fully automatic appearance defect and size detection equipment for thrust pads according to this utility model;

[0022] Figure 5 This is a schematic diagram of the rod storage bin structure of the fully automatic appearance defect and size detection equipment for thrust pads of this utility model.

[0023] In the diagram: 1. Vibratory feeder base frame; 2. Vibratory feeder upper frame; 3. Inspection machine base frame; 4. Inspection machine upper frame; 5. Support base frame; 6. Protective frame; 7. Vibratory storage bin; 8. Vibratory feeder; 9. Cylinder pushing mechanism; 10. Inspection belt; 11. Proximity switch; 12. 2.5D vision station; 12.1. 2.5D camera; 12.2. Four-zone light source; 13. Air blower for NG inner and outer diameters; 14. Air blower for NG appearance; 15. Air blower for NG appearance; 16. Flipping slide; 17. Receiving box; 18. Inspection... 19. Belt conveyor 2; 20. Proximity switch 2; 21. 2.5D vision station 2; 20.1. 2.5D camera 2; 20.2. Four-zone light source 2; 22. Appearance NG air blower 2; 23. Qualified air blower 2; 24. Material receiving box 2; 25. Belt guide plate; 26. Glass turntable; 27. Fiber optic photoelectric switch; 28. Thickness laser probe; 29. ​​Thickness NG air blower; 30. Material receiving box 3; 31. Qualified air blower 3; 32. Conveyor belt; 33. Counting probe; 34. Guide limit plate; 35. Stringer storage bin; 36. Stringer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0025] like Figures 1 to 5 As shown

[0026] This fully automatic thrust pad appearance defect and dimensional inspection equipment includes a vibratory feeder base 1, an inspection machine base 3, a support base 5, and a vibratory feeder 8. An inspection belt 10 is mounted on the top of the inspection machine base 3. A cylinder pushing mechanism 9 is installed between the vibratory feeder 8 and the inspection belt 10. The inspection belt 10 is equipped with a proximity switch 11, a 2.5D vision station 12, an air blower for NG (not acceptable) inner and outer diameters 13, an air blower for NG (not acceptable) appearance 14, and an air blower for acceptable appearance 15. The 2.5D vision station 12 includes a 2.5D camera 12.1 and a four-zone light source 12.2. An inspection belt 2 18 is mounted on the top of the inspection machine base 3. A flipping slide 16 is located at the end of the inspection belt 10. 16 is located above the second inspection belt 18. The second inspection belt 18 is equipped with a second proximity switch 19, a second 2.5D vision station 20, a second NG appearance air blower 21, a second qualified appearance air blower 22, and a belt guide plate 24. The second 2.5D vision station 20 includes a second 2.5D camera 20.1 and a second four-zone light source 20.2. The 2.5D vision station 1 and the second 2.5D vision station 20 can automatically identify the shape features of the pad. A glass turntable 25 is installed on the top of the inspection machine base frame 3. The end of the belt guide plate 24 is set on the glass turntable 25. The glass turntable 25 is equipped with a fiber optic photoelectric switch 26, a thickness laser probe 27, a second NG thickness air blower 28, and a third qualified appearance air blower 30.

[0027] In a specific implementation, a vibratory feeder upper frame 2 is installed on the top of the vibratory feeder base frame 1, a testing machine upper frame 4 is installed on the top of the testing machine base frame 3, and a protective frame 6 is installed on the top of the support base frame 5. The testing machine base frame 3 is located between the vibratory feeder base frame 1 and the support base frame 5. A vibratory storage bin 7 is installed on the top of the vibratory feeder base frame 1, and a vibratory feeder 8 is installed on the vibratory feeder base frame 1, and the vibratory feeder 8 is connected to the vibratory storage bin 7. A receiving box 17, a receiving box 23, and a receiving box 3 29 are provided on the top of the testing machine base frame 3. The receiving box 17 is located below the end of the testing belt 10, the receiving box 23 is located below the end of the testing belt 28, and the receiving box 3 29 is located below the side of the glass turntable 25. By providing a non-conforming receiving box placement area, non-conforming products can be effectively prevented from being mixed with qualified products, avoiding the introduction of non-conforming thrust pads in subsequent assembly stages, which could lead to a decrease in the performance of the entire assembly or even failure. This ensures that each stage of the production process can proceed smoothly according to the established quality standards.

[0028] Furthermore, a conveyor belt 31 is installed on the top of the testing machine base frame 3. The conveyor belt 31 is located on one side of the glass turntable 25 and on the side of the qualified air blower 30. A counting probe 32 and a guide limit plate 33 are installed on the conveyor belt 31. The end of the conveyor belt 31 is located above the support base frame 5. A rod storage bin 34 is installed on the top of the support base frame 5. 24 rods 35 are installed on the rod storage bin 34. When the counting probe 32 on the conveyor belt 31 senses that a pad has passed by, it starts counting. The pad is guided into the rod 35 by the guide limit plate 33 on the conveyor belt 31. When a certain number is counted, it automatically switches to the next rod 35. Then, the qualified pads on the rod 35 are manually removed.

[0029] The implementation principle of the fully automatic appearance defect and dimensional inspection equipment for thrust pads in this embodiment is as follows:

[0030] Step 1: Pour the thrust pads to be tested into the vibrating storage bin 7. The storage bin can hold 30-45 minutes' worth of testing material. Based on the material shortage sensing signal in the vibrating plate 8, the pads are added quantitatively into the head of the vibrating plate 8 through vibration.

[0031] Step 2: After the material is fed by the vibratory feeder 8, the thrust pads are arranged one after another and sent into the cylinder pushing mechanism 9.

[0032] Step 3: The cylinder pushing mechanism 9 pushes the thrust pad evenly onto the detection belt 10 by means of cylinder pushing.

[0033] The purpose of adding a cylinder pushing mechanism 9 between the vibratory plate 8 and the detection belt 10 is to ensure that the pads are delivered to the detection belt 10 at even intervals, thereby avoiding excessive missed detections due to uneven intervals and improving the inspection rate.

[0034] Step 4: The inspection belt 10 has two channels: an inspection channel and a qualified product channel. When the proximity switch 11 on the inspection channel senses that a pad is passing by, it triggers the 2.5D camera 12.1 to take a picture of the pad and inspect the inner and outer diameters and the appearance defects on the upper surface.

[0035] Step 5: Based on the test results, for qualified products, qualified air blower 15 sends the gasket from the test channel into the qualified product channel, and then into the flipping slide 16 for flipping. After flipping, the gasket slides onto the test belt 2 18. For unqualified products, i.e. NG parts, they are blown out by the corresponding inner and outer diameter NG air blower 13 and appearance NG air blower 14, respectively. In addition, parts with abnormal intervals and missed shots and parts with failed air blowers slide into the receiving box 17 along with the test belt 10.

[0036] The purpose of setting two channels on the inspection belt 10 and adding qualified air blowing 15 is to ensure that unqualified products are not mixed with qualified products.

[0037] Step Six: The inspection belt 18 is also equipped with two channels: an inspection channel and a qualified product channel. When the proximity switch 19 on the inspection channel senses that a pad has passed by, it triggers the 2.5D camera 20.1 to take a picture of the pad and inspect the appearance defects on the lower surface.

[0038] Step 7: Based on the test results, for qualified products, qualified air blower 22 sends the gasket from the test channel to the qualified product channel, and then enters the glass turntable 25 through the belt guide plate 24. For unqualified products, they are blown out by appearance NG air blower 21. In addition, the missing parts due to abnormal interval and the parts that fail to blow air are slid into the receiving box 23 along with the test belt 218.

[0039] Step 8: When the fiber optic photoelectric switch 26 on the glass turntable 25 senses the passing of a gasket, it triggers the thickness laser probe 27 to measure the thickness of the gasket. According to the measurement results, for qualified products, qualified air blower 30 sends the gasket into the conveyor belt 31. For unqualified products, i.e. NG parts, the NG parts are blown out by thickness NG air blower 28. Among them, the parts with abnormal intervals and the parts with failed air blowing slide into the receiving box 3 29 along with the glass turntable 25.

[0040] Step 9: The 24 rods 35 installed in the rod storage bin 34 can meet the rod stringing requirements of 30-45 minutes. When the counting probe 32 on the conveyor belt 31 senses that a pad is passing by, it starts counting. The pad is guided into the rod 35 by the guide limit plate 33 on the conveyor belt 31. When a certain number is counted, it automatically switches to the next rod 35, and then the qualified pad on the rod 35 is manually removed.

Claims

1. A fully automatic appearance defect and dimensional inspection device for thrust pads, comprising a vibratory feeder base (1), an inspection machine base (3), a support base (5), and a vibratory feeder (8), characterized in that, The top of the testing machine base frame (3) is provided with a testing belt 1 (10), and a cylinder pushing mechanism (9) is provided between the vibrating plate (8) and the testing belt 1 (10). The testing belt 1 (10) is provided with a proximity switch 1 (11), a 2.5D vision station 1 (12), an inner and outer diameter NG air blower (13), an appearance NG air blower 1 (14), and a qualified air blower 1 (15). The top of the testing machine base frame (3) is provided with a testing belt 2 (18), and a flipping slide plate (16) is provided at the end of the testing belt 1 (10). The flipping slide plate (16) is located above the testing belt 2 (18).

2. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 1, characterized in that, The inspection belt 2 (18) is equipped with a proximity switch 2 (19), a 2.5D vision station 2 (20), an appearance NG air blower 2 (21), a qualified air blower 2 (22) and a belt guide plate (24). The inspection machine base frame (3) is equipped with a glass turntable (25) on top.

3. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 1, characterized in that, The vibratory feeder base (1) is equipped with a vibratory storage bin (7) on top, and the vibratory feeder (8) is installed on the vibratory feeder base (1), and the vibratory feeder (8) is connected to the vibratory storage bin (7).

4. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 1, characterized in that, The 2.5D vision station one (12) includes a 2.5D camera one (12.1) and a four-zone light source one (12.2), and the 2.5D vision station two (20) includes a 2.5D camera two (20.1) and a four-zone light source two (20.2).

5. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 1, characterized in that, The top of the base frame (3) of the testing machine is provided with receiving box one (17), receiving box two (23) and receiving box three (29), and receiving box one (17) is located below the end of the testing belt one (10).

6. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 1, characterized in that, The top of the testing machine base frame (3) is equipped with a conveyor belt (31), which is located on one side of the glass turntable (25) and on the other side of the qualified air blower (30). The conveyor belt (31) is equipped with a counting probe (32) and a guide limit plate (33).

7. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 6, characterized in that, The end of the conveyor belt (31) is located above the support base (5). The top of the support base (5) is provided with a rod storage bin (34), and 24 rods (35) are provided on the rod storage bin (34).

8. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 2, characterized in that, The vibratory feeder base frame (1) is equipped with a vibratory feeder upper frame (2) on top, the testing machine base frame (3) is equipped with a testing machine upper frame (4) on top, the support base frame (5) is equipped with a protective frame (6) on top, and the testing machine base frame (3) is located between the vibratory feeder base frame (1) and the support base frame (5).

9. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 2, characterized in that, The end of the belt guide plate (24) is set on the glass turntable (25), and the glass turntable (25) is equipped with a fiber optic photoelectric switch (26), a thickness laser probe (27), a thickness NG air blower (28), and a qualified air blower (30).

10. The fully automatic appearance defect and dimensional inspection equipment for thrust pads according to claim 5, characterized in that, The receiving box two (23) is located below the end of the detection belt two (18), and the receiving box three (29) is located below the side of the glass turntable (25).

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