A bolt fastener surface defect detection device

Abstract

This utility model relates to the field of bolt inspection technology, specifically a bolt fastener surface defect inspection device, including a base and a material conveying and inspection assembly disposed at the top of the base. The material conveying and inspection assembly includes a tilting conveyor and a separating component. The tilting conveyor includes a first conveyor belt and a second conveyor belt respectively placed on the left and right sides of the top of the base. The second conveyor belt is flush with the middle section of the first conveyor belt. The tilting conveyor also includes a tilting component disposed between the first and second conveyor belts. The tilting component includes several rollers, and lifting plates are rotatably installed at both ends of the rollers. This application places the bolts on the first conveyor belt and conveys them to the right. During the conveying process, the bolts are separated by guide plates and fall to the top of the rollers. As the bolts roll on the surface of the rollers, the operator observes whether there are any defects on their surface. If there are defects, the bolts can be directly removed, avoiding the omission of localized defects during the inspection process.

Description

Technical Field

[0001] This utility model relates to the field of bolt inspection technology, specifically a device for detecting surface defects in bolt fasteners. Background Technology

[0002] Bolts, as cylindrical fasteners with bolts attached, are often used in conjunction with nuts to firmly connect adjacent parts by utilizing the rotation and friction of the bolts. They are widely used in many fields such as machinery manufacturing, automotive industry, and construction engineering.

[0003] In order to ensure the yield rate of bolt products, quality inspection is required after the bolts are manufactured to ensure that they meet the relevant production standards. Among them, the inspection of bolt appearance defects is one of the important inspection items.

[0004] Currently, some existing appearance inspection devices use conveyor belts to transport bolts. Workers stand around the conveyor belt and visually inspect the bolt surfaces for defects. However, this method has significant limitations in actual operation. The bolts are basically stationary on the conveyor belt, making it difficult to automatically rotate them to adjust the face facing the worker. This can lead to some areas of the bolt surface not being visible to the worker, easily causing some appearance defects to be missed, which seriously affects the accuracy and comprehensiveness of the inspection results. Utility Model Content

[0005] The purpose of this invention is to provide a bolt fastener surface defect detection device to solve the problem mentioned in the background art that bolts are prone to local location omissions during the detection process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bolt fastener surface defect detection device, comprising a base and a material conveying and detection assembly disposed at the top of the base, wherein the material conveying and detection assembly includes a tilting material conveyor and a material dispensing component, wherein: The tilting conveyor includes a first conveyor belt and a second conveyor belt respectively placed on the left and right sides of the top of the base, with the second conveyor belt flush with the middle section of the first conveyor belt; The tilting conveyor also includes a tilting component disposed between the first conveyor belt and the second conveyor belt. The tilting component includes several rollers, and lifting plates are rotatably mounted at both ends of the rollers. The lifting plates are covered with vertical plates, and each vertical plate is provided with a second locking screw to fix the position of the lifting plate. By adjusting the height of the lifting plate on the vertical plate, the several rollers form an inclined surface with the left side higher than the right side, so that the bolts will tilt when they roll on the tilting component. The material distribution component includes two L-shaped fixing frames fixed on the base. The top of the two L-shaped fixing frames is connected to a connecting frame. Several guide plates are movably installed on the connecting frame to separate several bolts conveyed by the first conveyor belt for inspection.

[0007] Preferably, each of the guide plates has a slider fixed to its top, and the slider passes through the inner frame of the connecting frame and is connected to a horizontal plate, which is placed above the connecting frame to prevent it from falling off.

[0008] Preferably, the horizontal plate is provided with at least two threaded holes, and a first locking screw for fixing the position of the horizontal plate is screwed into each threaded hole.

[0009] Preferably, each of the L-shaped fixing frames has a protrusion fixed on its right side, and each protrusion is provided with an adjusting screw. The bottom end of each adjusting screw is provided with a baffle plate to prevent the bolt from falling off the roller.

[0010] Preferably, the baffle plate is composed of a movable plate and a triangular plate, and the movable plate and the triangular plate are rotatably connected to facilitate the movable contact of the inclined surface of the triangular plate with several rollers.

[0011] Preferably, the bottom end of the guide plate is provided with a plurality of spherical grooves, and each of the spherical grooves is provided with ball bearings to reduce friction with the first conveyor belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By placing the bolts on the first conveyor belt and conveying them to the right, they are separated by the guide plate and fall onto the top of the roller during the conveying process. As the bolts roll on the roller surface, the staff observes whether there are any defects on their surface. If there are any defects, they can be removed directly, thus avoiding the omission of localized defects in the bolts during the inspection process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the guide plate installation in this application; Figure 3 This is a schematic diagram of the tilting feeder structure of this application; Figure 4 This is a schematic diagram of the component structure of this application.

[0014] In the diagram: 1. Base; 2. First conveyor belt; 3. Second conveyor belt; 4. L-shaped fixing frame; 5. Connecting frame; 6. Guide plate; 7. Horizontal plate; 8. First locking screw; 9. Protrusion; 10. Adjusting screw; 11. Baffle plate; 12. Vertical plate; 13. Lifting plate; 14. Roller; 15. Second locking screw. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a bolt fastener surface defect detection device, including a base 1 and a material conveying and detection component disposed at the top of the base 1. The material conveying and detection component includes a tilting material conveyor and a material distributing component. The tilting material conveyor includes a first conveyor belt 2 and a second conveyor belt 3 respectively disposed on the left and right sides of the top of the base 1. The second conveyor belt 3 is flush with the middle section of the first conveyor belt 2. The first conveyor belt 2 and the second conveyor belt 3 adopt the NN200 oil-resistant conveyor belt in the prior art. The conveying of bolts by conveyor belt is a common prior art, which will not be described in detail here.

[0017] The tilting conveyor also includes a tilting component disposed between the first conveyor belt 2 and the second conveyor belt 3. The tilting component includes several rollers 14. Both ends of the rollers 14 are rotatably connected to lifting plates 13 via bearings. The lifting plates 13 are covered with upright plates 12. The upright plates 12 are welded and fixed to the top of the base 1. Each upright plate 12 is provided with a second locking screw 15 to fix the position of the lifting plate 13. By adjusting the height of the lifting plate 13 on the upright plate 12 and by screwing the second locking screw 15 through the upright plate 12 and against the lifting plate 13 to fix the height of the lifting plate 13, the several rollers 14 form an inclined surface with the left side higher than the right side. This allows the bolts to be tilted when they roll on the tilting component. That is, the bolts are placed on the first conveyor belt 2 and conveyed to the right and fall onto the surface of the several rollers 14. As the rollers 14 roll, the bolts are tilted during the movement, making it convenient for workers to observe whether there are any defects on the surface of the bolts at different positions.

[0018] The material separating component includes two L-shaped fixing frames 4 welded and fixed to the base 1. A connecting frame 5 is welded and fixed to the top of the two L-shaped fixing frames 4. Several guide plates 6 are movably installed on the connecting frame 5 to separate the bolts conveyed by the first conveyor belt 2 for inspection. The left side of each guide plate 6 is set as an inclined plate. After the bolts on the first conveyor belt 2 contact the inclined plate of the guide plate 6, they pass between the two guide plates 6 and fall onto the roller 14, avoiding a large number of bolts moving onto the roller 14 at the same time, which would dazzle the workers.

[0019] Each of the tops of several guide plates 6 is fixed with a slider, and the slider passes through the inner frame of the connecting frame 5 and is connected to a horizontal plate 7. The horizontal plate 7 is placed above the connecting frame 5 to prevent it from falling off. The width of the slider is the same as the width of the inner frame of the connecting frame 5 to prevent the guide plate 6 from deflecting.

[0020] The horizontal plate 7 is provided with at least two threaded holes, and a first locking screw 8 for fixing the position of the horizontal plate 7 is screwed into each threaded hole. The first locking screw 8 passes through the horizontal plate 7 and abuts against the connecting frame 5 to fix the position of the horizontal plate 7, the slider, and the guide plate 6, so that the position of the guide plate 6 can be adjusted according to different bolt sizes.

[0021] Each of the L-shaped fixing brackets 4 has a protrusion 9 fixed on its right side. Each protrusion 9 is equipped with an adjusting screw 10. The bottom end of each adjusting screw 10 is rotatably connected to a baffle plate 11 to prevent the bolts from falling off the rollers 14 via a bearing. The baffle plate 11 consists of a movable plate and a triangular plate. Magnetic blocks and sheet metal are glued to the sides of the movable plate and the L-shaped fixing bracket 4 that are close to each other, to prevent the baffle plate 11 from rotating at the bottom end of the adjusting screw 10. The movable plate and the triangular plate are rotatably connected, which allows the inclined surface of the triangular plate to move and fit against several rollers 14. When the rollers 14 are adjusted to different heights for use, the baffle plate 11 is adjusted to different heights by controlling the rotation of the adjusting screw 10.

[0022] The bottom end of the guide plate 6 is provided with several spherical grooves, and each spherical groove is provided with a ball to reduce friction with the first conveyor belt 2 and prevent the first conveyor belt 2 from being worn excessively during use.

[0023] Working principle: When in use, the electrical components on the base 1 are started by an external power source. The bolts are placed on the first conveyor belt 2 and conveyed to the right. During the conveying process, they are separated by the guide plate 6 and fall to the top of the roller 14. As the bolts roll on the surface of the roller 14, the staff observes whether there are any defects on the surface. If there are any defects, they can be removed directly. The bolts that pass the inspection are conveyed away by the second conveyor belt 3.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. For example, the welding described in the specific embodiments of the present invention is merely a connection method for keeping two structures fixed. Fixing by other methods such as riveting, interference fit, etc., is merely a variation of this embodiment. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting surface defects in bolt fasteners, characterized in that: Includes a base (1) and a material conveying and detection assembly disposed on the top of the base (1), the material conveying and detection assembly including a tilting material conveyor and a distributing material conveyor, wherein: The flipping conveyor includes a first conveyor belt (2) and a second conveyor belt (3) respectively placed on the left and right sides of the top of the base (1), and the second conveyor belt (3) is flush with the middle section of the first conveyor belt (2); The flipping conveyor also includes a flipping component disposed between the first conveyor belt (2) and the second conveyor belt (3). The flipping component includes several rollers (14). Both ends of the rollers (14) are rotatably mounted with lifting plates (13). The lifting plates (13) are covered with upright plates (12), and each upright plate (12) is provided with a second locking screw (15) to fix the position of the lifting plates (13). By adjusting the height of the lifting plates (13) on the upright plates (12), the several rollers (14) form an inclined surface with the left side higher than the right side, so that the bolts will flip when they roll on the flipping component. The material distribution component includes two L-shaped fixing frames (4) fixed on the base (1). The top ends of the two L-shaped fixing frames (4) are connected to a connecting frame (5). Several guide plates (6) are movably installed on the connecting frame (5) to separate several bolts conveyed by the first conveyor belt (2) for inspection.

2. The bolt fastener surface defect detection device according to claim 1, characterized in that: Each of the guide plates (6) has a slider fixed at its top, and the slider passes through the inner frame of the connecting frame (5) and is connected to a horizontal plate (7). The horizontal plate (7) is placed above the connecting frame (5) to prevent it from falling off.

3. The bolt fastener surface defect detection device according to claim 2, characterized in that: The horizontal plate (7) is provided with at least two threaded holes, and each threaded hole is screwed with a first locking screw (8) for fixing the position of the horizontal plate (7).

4. The bolt fastener surface defect detection device according to claim 1, characterized in that: Each of the L-shaped fixing brackets (4) has a protrusion (9) fixed on its right side. Each of the protrusions (9) is provided with an adjusting screw (10). Each adjusting screw (10) is provided with a baffle plate (11) at its bottom end to prevent the bolt from falling off the roller (14).

5. The bolt fastener surface defect detection device according to claim 4, characterized in that: The baffle plate (11) is composed of a movable plate and a triangular plate, and the movable plate and the triangular plate are rotatably connected, so that the inclined surface of the triangular plate can move and fit against several rollers (14).

6. The bolt fastener surface defect detection device according to claim 1, characterized in that: The bottom end of the guide plate (6) is provided with several spherical grooves, and each of the spherical grooves is provided with balls to reduce friction with the first conveyor belt (2).

Images