Fastener defective product screening device

Abstract

The utility model discloses a fastener defective product screening device which comprises a workbench, a conveying belt, an appearance detection device, a movable grabbing device, a discharging sliding groove and a collecting box, the conveying belt is installed on the workbench, a fastener clamp is arranged on the belt face of the conveying belt, the workbench is provided with a first installation frame and a second installation frame, and the first installation frame and the second installation frame are arranged on the workbench. An appearance detection device is slidably mounted on the first mounting frame, a movable grabbing device is slidably mounted on the second mounting frame, two discharging sliding grooves are fixedly mounted on the second mounting frame, and a collecting box is placed below the discharging sliding grooves. According to the utility model, a fastener to be detected is fixed by the fastener clamp, then the fastener is conveyed to the lower part of the appearance detection device by the conveyor belt, the appearance defect of the fastener is detected, and the fastener with unqualified appearance is clamped by the movable grabbing device and conveyed to the blanking chute when passing through the movable grabbing device, and then falls into the collecting box, so that the appearance of the fastener is detected. And the screening of the fasteners with unqualified appearances is automatically completed.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener detection, in particular to a fastener defect screening device. Background Art

[0002] Fasteners are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters and supplies. Fasteners need to be inspected for appearance after production to ensure product quality and customer satisfaction, prevent safety accidents and personal injuries, and improve production efficiency and product quality.

[0003] Existing fastener detection devices, for example, a fastener detection device with announcement number CN219474447U, includes a base, a bracket fixedly connected to the top of the base, a top plate fixedly connected to the top of the bracket, and a sliding plate slidably connected to the side wall of the bracket; by directly squeezing the nut into the groove, the nut will squeeze the squeezing plate along the slope of the two sets of squeezing plates, so that the two sets of pressure plates are squeezed into the notch, the spring is compressed, and the squeezing plate squeezes both sides of the threaded nut under the action of the spring, and the nut is fixed in the groove, and the turntable is rotated to rotate the nut to the bottom of the threaded rod, and the cylinder and the motor are started to move the threaded rod downward while rotating, so that the threaded rod and the nut are matched, and the threaded rod is aligned with the nut and inserted. If the threaded rod is successfully inserted, it means that there is no problem with the inner wall thread of the nut, otherwise there is a problem. This device can fix nuts of different sizes within a certain range, reduce the steps of using the device, and improve the detection efficiency of the device, but the detection efficiency of the device is low.

[0004] Therefore, it is necessary to invent a fastener defect screening device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a fastener defect screening device to solve the technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastener defective product screening device, comprising a workbench, a conveyor belt, an appearance inspection device, a material discharge chute and a collection box, a conveyor belt is installed on the workbench, a fastener clamp is provided on the belt surface of the conveyor belt, a first mounting frame and a mobile grasping device are provided on the workbench, the appearance inspection device is slidably installed on the first mounting frame, a second mounting frame is installed on the top of the mobile grasping device, a collection box is fixedly installed on the end of the second mounting frame rod of the second mounting frame, and two material discharge chutes are fixedly installed on the inner side of the mobile grasping device.

[0007] Preferably, a plurality of groups of fastener clamps are provided at equal intervals on the conveyor belt, two fasteners can be positioned on the fastener clamps, infrared sensing devices are installed on the vertical plates on both sides of the conveyor belt, the infrared sensing devices include an infrared transmitter and an infrared receiving board, and the infrared sensing devices are used to remind the appearance inspection device that there are fasteners to be inspected.

[0008] Preferably, an adjustment slot is provided on the top horizontal plate of the first mounting frame, and two appearance detection devices are slidably installed in the adjustment slot. The appearance detection device is adjustable for practical use. The appearance detection module mainly detects appearance defects of fasteners, such as surface scratches, breakage, etc.

[0009] Preferably, two fixing plates are provided in the appearance detection device, and four fixing screws are installed on the top plate of the fixing plates. A detection camera is provided at the bottom of the appearance detection device. The appearance detection device can be fixed by tightening the fixing screws, and can be adjusted by loosening the screws.

[0010] Preferably, the fastener clamp is provided with two sets of fixing clamps, two foam pads are fixedly pasted inside the fixing clamps, openings are provided on the upper ends of the fixing clamps and the foam pads, and a rotating wheel is provided on the fastener clamp. The resilience of the foam pads can quickly locate the fasteners and protect the fasteners. The rotating wheel can rotate the fasteners when the appearance inspection device inspects the appearance of the fasteners, so that the entire surface of the fasteners can be inspected.

[0011] Preferably, a moving unit is provided at the upper end of the moving grabbing device, and the moving unit is slidably mounted inside the second mounting frame. A through hole is opened on the moving unit to facilitate the driving structure in the second mounting frame to drive the moving grabbing device.

[0012] Preferably, an electric telescopic rod is provided in the mobile grasping device, a clamping claw is installed at the end of the electric telescopic rod, and the clamping claw consists of two arc-shaped claws that can move laterally, and the two claws can clamp or release the fastener by moving toward each other.

[0013] Preferably, a material discharge chute is fixedly installed on each of the two side vertical frames of the second mounting frame, and the high starting end of the material discharge chute is at the same height as the fastener clamp, so that the mobile grasping device can quickly release the defective products to the material discharge chute after grasping them.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The fasteners to be inspected are fixed by the fastener clamp, and then transported to the bottom of the appearance inspection device by the conveyor belt to inspect the appearance defects of the fasteners. When the fasteners with unqualified appearance pass through the mobile grasping device, they are clamped by the mobile grasping device and sent to the unloading chute, and then fall into the collection box, automatically completing the screening of unqualified fasteners;

[0016] 2. The use of automated assembly line testing can greatly improve the production efficiency of fasteners. Traditional testing methods often rely on manual visual inspection, which is inefficient and prone to fatigue leading to misjudgment. The automatic screening device can achieve continuous, fast and accurate testing, reduce errors caused by human factors, and improve production speed and output;

[0017] 3. Through the automated screening device, fasteners with appearance defects can be found and eliminated in time to ensure the stability and consistency of product quality. This helps to reduce customer complaints, returns and repair costs caused by defective products entering the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a fastener defect screening device;

[0019] Figure 2 It is a right side view of a fastener defect screening device;

[0020] Figure 3 It is a schematic diagram of the structure of some components on the workbench;

[0021] Figure 4 It is a structural schematic diagram of a mobile grasping device;

[0022] Figure 5 for Figure 1 The enlarged view of point A in the middle;

[0023] Figure 6 It is a structural schematic diagram of the appearance inspection device.

[0024] Description of reference numerals:

[0025] 1. Workbench; 2. Conveyor belt; 3. First mounting frame; 4. Appearance inspection device; 5. Fastener fixture; 6. Second mounting frame; 7. Mobile grabbing device; 8. Unloading chute; 9. Collection box; 10. Mobile unit; 11. Infrared sensing device; 12. Adjustment slot; 13. Electric telescopic rod; 14. Clamp; 15. Fixing fixture; 16. Foam pad; 17. Rotating wheel; 18. Inspection camera; 19. Fixing plate; 20. Fixing screws. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-6 The fastener defect screening device shown in the figure comprises a workbench 1, a conveyor belt 2, an appearance inspection device 4, a material discharge chute 8 and a collection box 9. A conveyor belt 2 is installed on the workbench 1, and a fastener clamp 5 is provided on the belt surface of the conveyor belt 2. A first mounting frame 3 and a mobile grabbing device 7 are provided on the workbench 1. The appearance inspection device 4 is slidably installed on the first mounting frame 3. A second mounting frame 6 is installed on the top of the mobile grabbing device 7. The collection box 9 is fixedly installed at the end of the second mounting frame rod 24 of the second mounting frame 6. Two material discharge chutes 8 are fixedly installed on the inner side of the mobile grabbing device 7. A plurality of fastener clamps 5 are provided on the conveyor belt 2 at equal intervals. A fastener clamp 5 is assembled, two fasteners can be positioned on the fastener clamp 5, infrared sensing devices 11 are installed on the vertical plates on both sides of the conveyor belt 2, the infrared sensing device 11 includes an infrared transmitter and an infrared receiving board, two moving units 10 are arranged on the two side plates of the conveyor belt 2, an adjustment groove 12 is opened on the top horizontal plate of the first mounting frame 3, two appearance detection devices 4 are slidably installed in the adjustment groove 12, two fixed plates 19 are arranged in the appearance detection device 4, four fixing screws 20 are installed on the top plate of the fixed plate 19, and a detection camera 18 is arranged at the bottom of the appearance detection device 4.

[0028] The fastener fixture 5 is provided with two groups of fixing fixtures 15, and two foam pads 16 are fixedly pasted inside the fixing fixtures 15. The upper ends of the fixing fixtures 15 and the foam pads 16 are provided with openings. The fastener fixture 5 is provided with a rotating wheel 17. The upper end of the mobile grasping device 7 is provided with a moving unit 10, and the moving unit 10 is slidably installed inside the second mounting frame 6. The mobile unit 10 has a through hole. An electric telescopic rod 13 is provided inside the mobile grasping device 7, and a clamping claw 14 is installed at the end of the electric telescopic rod 13. The clamping claw 14 consists of two arc-shaped claws that can be moved laterally. A material discharge chute 8 is fixedly installed on each of the two side vertical frames of the second mounting frame 6, and the high starting end of the material discharge chute 8 is at the same height as the fastener fixture 5.

[0029] Working principle of this utility model:

[0030] Refer to the instruction manual Figure 1-6When using the utility model, firstly, the two ends of the fastener to be inspected are placed on the foam pad 16 in the fastener fixture 5, and then the conveyor belt 2 is started to transport the fastener backwards. After the infrared sensing device 11 receives the signal that an object has passed, the detection camera 18 and the mobile grasping device 4 are started successively. When the fastener reaches the bottom of the detection camera 18, the fastener is rotated in cooperation with the rotating wheel 17, and the detection camera 18 performs a full range of detection on the appearance defects of the fastener, such as surface scratches, damage, etc. After the fastener with unqualified appearance reaches the bottom of the mobile grasping device 7 after the detection, the electric telescopic rod 13 transports the clamping jaw 14 to the fastener, and then the clamping jaw 14 clamps the fastener, the electric telescopic rod 13 is recovered, and the mobile unit 10 drives the mobile grasping device 7 to move to the top of the unloading chute 8, and the clamping jaw 14 releases the unqualified fastener, and the fastener slides along the unloading chute 8 into the collection box 9, automatically completing the appearance inspection of the fastener and the rejection of unqualified products.

Claims

1. A fastener defect screening device, comprising a workbench (1), a conveyor belt (2), an appearance inspection device (4), a mobile grasping device (7), a material discharge chute (8) and a collection box (9), characterized in that: A conveyor belt (2) is installed on the workbench (1), and a fastener clamp (5) is provided on the belt surface of the conveyor belt (2). A first mounting frame (3) and a second mounting frame (6) are provided on the workbench (1). An appearance detection device (4) is slidably installed on the first mounting frame (3), and a mobile grasping device (7) is slidably installed on the second mounting frame (6). Two material discharge chutes (8) are fixedly installed on the second mounting frame (6), and a collection box (9) is placed below the material discharge chute (8).

2. A fastener defect screening device according to claim 1, characterized in that: A plurality of groups of fastener clamps (5) are arranged at equal intervals on the conveyor belt (2), and two fasteners can be positioned on the fastener clamps (5). Infrared sensing devices (11) are installed on the vertical plates on both sides of the conveyor belt (2), and the infrared sensing devices (11) include an infrared transmitter and an infrared receiving board.

3. The fastener defect screening device according to claim 1, characterized in that: An adjustment groove (12) is formed on the top transverse plate of the first mounting frame (3), and two appearance detection devices (4) are slidably mounted in the adjustment groove (12).

4. The fastener defect screening device according to claim 1, characterized in that: Two fixing plates (19) are arranged inside the appearance detection device (4), four fixing screws (20) are installed on the top plate of the fixing plate (19), and a detection camera (18) is arranged at the bottom of the appearance detection device (4).

5. The defective fastener screening device according to claim 2, characterized in that: The fastener clamp (5) is provided with two groups of fixing clamps (15), two foam pads (16) are fixedly adhered inside the fixing clamps (15), the upper ends of the fixing clamps (15) and the foam pads (16) are provided with openings, and the fastener clamp (5) is provided with a rotating wheel (17).

6. The fastener defect screening device according to claim 1, characterized in that: A moving unit (10) is provided at the upper end of the moving grabbing device (7). The moving unit (10) is slidably mounted inside the second mounting frame (6). A through hole is provided on the moving unit (10).

7. The defective fastener screening device according to claim 1, characterized in that: The mobile grasping device (7) is provided with an electric telescopic rod (13), the end of which is provided with a clamping claw (14), which is composed of two arc-shaped claws that can move laterally.

8. The defective fastener screening device according to claim 1, characterized in that: A material discharge chute (8) is fixedly mounted on each of the two side vertical frames of the second mounting frame (6), and the upper starting end of the material discharge chute (8) is at the same height as the fastener clamp (5).

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