An automatic screening device for anti-loosening bolts

Abstract

The present invention relates to the technical field of screening devices, and specifically to an automatic screening device for anti-loosening bolts, which includes a frame, a sorting plate, a feeding mechanism, a screening mechanism, a storage mechanism, a shooting mechanism and a processing system: a plurality of limit grooves are provided on the periphery of the sorting plate; the screening mechanism includes a first limit plate, a sorting plate, a second limit plate and a clamping assembly; the bolt body is photographed from multiple angles by the shooting mechanism, the photographed pictures are collected by the processing system, and the bolt body is analyzed and judged whether it is qualified. The present invention sorts the bolt body by a sorting plate, a first limit plate, a second limit plate and a sorting plate; the bolt body is kept in a vertical state by the clamping assembly and the first limit plate, and the bolt is clamped, which solves the problem of shaking or tipping of the bolt body during the screening process of the screening device in the prior art, thereby avoiding the problem that the image taken by the shooting mechanism cannot completely cover all detection areas, thereby improving the accuracy of the detection result.

Description

Technical Field

[0001] The invention relates to the technical field of screening devices, and in particular to an automatic screening device for anti-loosening bolts. Background Art

[0002] Bolt screening device is a mechanical device used to screen and sort bolts. It is widely used in the fields of automobile manufacturing, machinery manufacturing, aerospace, electronics and electrical appliances. It is used to screen and sort bolts of various specifications and materials. It can improve screening efficiency and reduce the error rate of manual screening. There are many types of bolt screening devices. According to their working principles and uses, they can be divided into vibration screening machines, optical screening machines and magnetic separators. Among them, optical screening machines use optical technology to perform appearance inspection on bolts through cameras and image processing systems to identify surface defects or size discrepancies.

[0003] The anti-loosening bolts have enhanced the connection stability between the bolts and nuts through specific designs or additional devices, thereby effectively preventing the bolts from loosening due to external factors such as vibration and impact. When screening anti-loosening bolts, the screening devices in the prior art are prone to shaking or even falling over during the screening process due to their long length, resulting in blind spots in the shooting, which causes the images taken by the camera to fail to fully cover all bolt areas that need to be inspected, resulting in incomplete inspection and low inspection accuracy, and the existing screening devices cannot adapt to bolts of various specifications. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes an automatic screening device for anti-loosening bolts, which solves the problems of the bolts tipping over or shaking during the screening process of anti-loosening bolts, the problem of blind spots in the captured images, and the problem of being unable to adapt to bolts of multiple specifications.

[0005] The invention discloses an automatic screening device for anti-loosening bolts, which adopts the following technical scheme, including a frame, a screening mechanism, a feeding mechanism, a storage mechanism, a photographing mechanism and a processing system;

[0006] The screening mechanism comprises a sorting disc, a support ring, a first limit plate, a sorting plate, a second limit plate and a plurality of clamping components; the sorting disc can be rotatably mounted on the frame around its own axis, and the sorting disc is located above the frame; a plurality of limit grooves are evenly arranged on the outer circumference of the sorting disc, and the sorting disc is connected to a driving motor, and the driving motor drives the sorting disc to rotate around its own axis; the support ring is arranged on the outer circumference of the sorting disc, and there is a gap between the support ring and the sorting disc;

[0007] The first limit plate, the sorting plate and the second limit plate are all fan-shaped, and the three are arranged in sequence along the circumference of the sorting disk, located in the gap between the sorting plate and the support ring, and the first limit plate and the second limit plate are fixedly connected to the support ring; the sorting plate can be installed on the frame to move radially along the sorting disk, and the sorting plate is connected to a control component, which is used to drive the sorting plate to move radially along the sorting disk; the first limit plate is connected to the feeding mechanism at one end away from the second limit plate; a clamping assembly is installed in each limit groove, and the clamping assembly is used to push the bolt body outward radially along the sorting disk and keep the bolt body in a vertical state;

[0008] The feeding mechanism is installed on the frame, and is used to adjust the bolt body to a vertical state with the head facing upward; a feeding track is provided between the feeding mechanism and the sorting plate, and the feeding track is used to transport the bolt body to the gap between the sorting plate and the first limit plate;

[0009] The storage mechanism includes a first storage assembly and a second storage assembly, the first storage assembly is arranged below the sorting plate, and the second storage assembly is arranged below an end of the second limiting plate away from the sorting plate;

[0010] The photographing mechanism is installed on the frame, and is used to photograph the bolt body from multiple angles;

[0011] The processing system is used to collect the pictures taken by the shooting mechanism and analyze and determine whether the bolt body is qualified.

[0012] Optionally, the clamping assembly includes a clamping block and a driving member, and an arc-shaped clamping groove is provided on the side of the clamping block facing away from the sorting disk, the center of the clamping groove is outward, and there is a part of the clamping groove equal to the outer diameter of the bolt body; the driving member makes the part of the clamping groove equal to the diameter of the bolt body abut against the bolt body, and applies outward pressure to the bolt body.

[0013] Optionally, the clamping block is wheel-shaped with an axis extending horizontally, and the clamping block can be installed in the limit groove so as to rotate around its own axis; the clamping groove extends along the circumference of the clamping block, and the cross-section of the clamping groove along the radial direction of the clamping block is an arc with the center of the circle pointing outward, and the diameter of the clamping groove gradually increases along the first rotation direction; the driving member is a torsion spring, and the two ends of the torsion spring are respectively connected to the sorting plate and the clamping block, and the torsion spring has a tendency to make the small diameter part of the clamping groove contact with the bolt body.

[0014] Optionally, a pin is installed in each limiting groove, and the pin extends horizontally; one end can be slidably installed on the sorting disk along its own axis, and the other end points to the axis of the corresponding clamping groove; a spring is connected between the pin and the sorting disk, and the spring has a tendency to move the pin toward the axis of the clamping groove.

[0015] Optionally, the first limiting plate and the second limiting plate are detachably mounted on the support ring; and the sorting plate is detachably mounted on the frame.

[0016] Optionally, a plurality of first limit plates are arranged between the sorting plate and the lower end of the feeding track, the plurality of first limit plates are closely arranged along the circumference of the sorting plate, and the first limit plates and the second limit plates are fixedly connected to the support ring by bolts.

[0017] Optionally, the first storage component includes a first slide groove and a first storage box; the second storage component includes a second slide groove and a second storage box; the upper end of the first slide groove is detachably connected to the support ring and is located below the sorting plate, and the lower end is connected to the first storage box; the upper end of the second slide groove is detachably connected to the support ring and is located below the end of the second limiting plate away from the sorting plate, the lower end of the second slide groove is connected to the second storage box, and the first storage box and the second storage box are installed on the frame.

[0018] Optionally, a blowing assembly is provided on the sorting disc, and the blowing assembly blows air from the axis of the sorting disc toward the first chute and the second chute.

[0019] Optionally, the shooting mechanism includes two first camera assemblies and two second camera assemblies, and the first camera assemblies and the second camera assemblies are detachably connected to the frame; the two first camera assemblies are arranged opposite to each other, and the two second camera assemblies are arranged opposite to each other; the cameras of the first camera assemblies are located below the sorting disk, and the cameras of the second camera assemblies are located above the sorting disk.

[0020] Optionally, the control component is a cylinder, which is fixedly mounted on the frame, and the movable end of the cylinder is connected to the sorting plate.

[0021] The beneficial effects of the present invention are as follows: an automatic screening device for anti-loosening bolts of the present invention sorts the bolt bodies through a sorting disk, a first limit plate, a second limit plate and a sorting plate, and clamps the bolt bodies through a clamping assembly and the first limit plate, thereby solving the problem of shaking of the bolt bodies during the screening process of the screening device in the prior art, thereby avoiding the problem that the image taken by the shooting mechanism cannot completely cover all the areas that need to be detected due to the shaking of the bolt body, thereby improving the accuracy of the detection results.

[0022] Furthermore, the present invention arranges a pin and utilizes friction to cause the bolt body to rotate and move along its own axis during the screening process, thereby allowing the threads originally blocked by the sorting disk and the first limiting plate to leak out, making it easier for the camera to take images and avoiding blind spots in the field of vision. In addition, by arranging the first camera assembly and the second camera assembly, it is further ensured that all areas to be inspected of the bolt body can be photographed, thereby ensuring the accuracy of screening.

[0023] Furthermore, the present invention can match the length of the first limit plate according to the length of the bolt body, so that the length of the path that the bolt body passes through during the screening process is positively correlated with the length of the bolt body, so that the shooting mechanism can completely cover the area to be tested and ensure the test results. In addition, the present invention provides a variable diameter clamping groove on the wheel-shaped clamping block, and uses a torsion spring, so that the screening device can simultaneously screen bolt bodies of different diameters while ensuring the accuracy of the test results, thereby improving the practicality of the screening device and the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of an automatic screening device for anti-loosening bolts of the present invention;

[0026] Figure 2 for Figure 1 Enlarged image at the center X;

[0027] Figure 3 A top view of an automatic screening device for anti-loosening bolts according to the present invention;

[0028] Figure 4 It is a structural schematic diagram of a screening mechanism in an automatic screening device for anti-loosening bolts of the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of Y in the middle;

[0030] Figure 6 It is a structural schematic diagram of a clamping block in an automatic screening device for anti-loosening bolts of the present invention;

[0031] Figure 7 Schematic diagram of the force on the bolt body during the clamping process.

[0032] In the figure:

[0033] 100, rack;

[0034] 200, screening mechanism; 210, sorting plate; 211, limiting groove; 220, supporting ring; 230, first limiting plate; 240, sorting plate; 241, cylinder; 250, second limiting plate; 260, clamping block; 261, clamping groove; 270, ejector pin;

[0035] 300, feeding mechanism; 310, feeding track;

[0036] 400, storage mechanism; 410, first storage assembly; 411, first slide; 412, first storage box; 420, second storage assembly; 421, second slide; 422, second storage box;

[0037] 500, shooting mechanism; 510, first camera assembly; 520, second camera assembly;

[0038] 600. Bolt body. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 7 As shown, an automatic screening device for anti-loosening bolts provided by an embodiment of the present invention includes a frame 100, a screening mechanism 200, a feeding mechanism 300, a storage mechanism 400, a photographing mechanism 500 and a processing system.

[0041] The screening mechanism 200 includes a sorting disk 210, a support ring 220, a first limit plate 230, a sorting plate 240, a second limit plate 250 and a plurality of clamping components; the sorting disk 210 can be rotatably installed on the frame 100 around its own axis, and the sorting disk 210 is located above the frame 100; it is set along the radial direction of the sorting disk 210, the side close to the axis is the inner side, and the side away from the axis is the outer side; a plurality of limit grooves 211 are evenly opened on the outer periphery of the sorting disk 210, and the sorting disk 210 is connected to a drive motor, and the drive motor drives the sorting disk 210 to rotate around its own axis; the support ring 220 is arranged on the outer periphery of the sorting disk 210, and is fixedly connected to the frame 100, and there is a gap between the support ring 220 and the sorting disk 210.

[0042] The first limit plate 230, the sorting plate 240, and the second limit plate 250 are all fan-shaped, and the three are arranged in sequence along the circumference of the sorting disk 210, located in the gap between the sorting plate 240 and the support ring 220, and the first limit plate 230 and the second limit plate 250 are fixedly connected to the support ring 220; the sorting plate 240 can be installed on the frame 100 to move radially along the sorting disk 210, and the sorting plate 240 is connected to a control component, which is used to drive the sorting plate 240 to move radially along the sorting disk 210; the first limit plate 230 is connected to the feeding mechanism 300 at one end away from the second limit plate 250; a clamping assembly is installed in each limit groove 211, and the clamping assembly is used to push the bolt body 600 radially outward along the sorting disk 210 and keep the bolt body 600 in a vertical state.

[0043] The feeding mechanism 300 is installed on the frame 100 and is used to adjust the bolt body 600 to a vertical state with the head facing upward; a feeding track 310 is arranged between the feeding mechanism 300 and the sorting plate 210, and the feeding track 310 is used to transport the bolt body 600 to the gap between the sorting plate 210 and the first limit plate 230.

[0044] The storage mechanism 400 includes a first storage assembly 410 and a second storage assembly 420 . The first storage assembly 410 is disposed below the sorting plate 240 , and the second storage assembly 420 is disposed below an end of the second limiting plate 250 away from the sorting plate 240 .

[0045] The photographing mechanism 500 is installed on the frame 100 , and the photographing mechanism 500 is used to photograph the bolt body 600 from multiple angles.

[0046] The processing system is used to collect the pictures taken by the photographing mechanism 500 and analyze and determine whether the bolt body 600 is qualified.

[0047] Start the driving motor and the feeding mechanism 300. The driving motor drives the sorting disk 210 to rotate. The feeding mechanism 300 adjusts the bolt body 600 to a vertical state with the head facing upward. The bolt body 600 slides along the feeding track 310 to the gap between the sorting disk 210 and the first limit plate 230. Under the action of gravity, the bolt body 600 is inserted into the limit groove 211 in sequence, and the head of the bolt body 600 is located above the first limit plate 230. The clamping assembly pushes the bolt body 600 toward the first limit plate 230 and keeps it in a vertical state without shaking. The bolt body 600 rotates synchronously with the sorting disk 210 around the axis of the sorting disk 210. At the same time, the shooting mechanism 500 uses a high-precision CCD industrial camera or a machine vision system to capture image information of the bolt from multiple angles. After the processing system collects the pictures taken by the shooting mechanism 500, it uses the built-in intelligent detection software to analyze and process the captured image information, accurately measures the size, appearance and other parameters of the bolt according to the preset detection standards, and analyzes and determines whether the bolt body 600 is qualified.

[0048] When the bolt body 600 is qualified, when the bolt body 600 moves from the first limiting plate 230 to the sorting plate 240, the control component drives the sorting plate 240 away from the sorting disk 210, and the bolt body 600 falls into the first storage assembly 410 under the action of gravity. When the qualified bolt body 600 falls, the control component drives the sorting plate 240 to approach the sorting disk 210 and restore the original position.

[0049] When the bolt body 600 is unqualified, the bolt body 600 passes through the first limiting plate 230 , the sorting plate 240 , and the second limiting plate 250 in sequence, falls from the end of the second limiting plate 250 away from the sorting plate 240 , and falls into the second storage assembly 420 .

[0050] The present invention sorts the bolt body 600 through the sorting plate 210, the first limit plate 230, the second limit plate 250 and the sorting plate 240, and clamps the bolt body 600 through the clamping assembly and the first limit plate 230, thereby solving the problem of shaking of the bolt body 600 during the screening process in the screening device in the prior art, thereby avoiding the problem that the image taken by the shooting mechanism 500 cannot completely cover all the areas that need to be detected due to the shaking of the bolt body 600, thereby improving the accuracy of the detection result.

[0051] In a further embodiment, Figure 2 , Figure 5 , Figure 6As shown, the clamping assembly includes a clamping block 260 and a driving member. An arc-shaped clamping groove 261 is provided on the side of the clamping block 260 away from the sorting plate 210. The center of the clamping groove 261 faces outward, and there is a portion of the clamping groove 261 that is equal to the outer diameter of the bolt body 600. The driving member causes the portion of the clamping groove 261 that is equal to the diameter of the bolt body 600 to abut against the bolt body 600, and applies outward pressure to the bolt body 600.

[0052] Driven by the driving motor, the sorting disk 210 rotates around its own axis, and the feeding mechanism 300 transports the bolt body 600 to between the sorting disk 210 and the first limiting plate 230. The bolt body 600 is inserted into the limiting groove 211 in turn, and the driving member makes the part of the clamping groove 261 that is equal to the diameter of the bolt body 600 abut against the bolt body 600, and the clamping block 260 applies pressure outward, and the bolt body 600 is clamped with the cooperation of the clamping block 260 and the first limiting plate 230. Since the part of the clamping groove 261 that contacts the bolt body 600 is equal to the diameter of the bolt body 600, the bolt body 600 remains in a vertical state and cannot shake.

[0053] In a further embodiment, Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the clamping block 260 is wheel-shaped with its axis extending horizontally, and the clamping block 260 can be rotatably installed in the limit groove 211 around its own axis; the clamping groove 261 extends along the circumference of the clamping block 260, and the cross-section of the clamping groove 261 along the radial direction of the clamping block 260 is an arc with the center of the circle pointing outward, and the diameter of the clamping groove 261 gradually increases along the first rotation direction; the driving member is a torsion spring, and the two ends of the torsion spring are respectively connected to the sorting plate 240 and the clamping block 260, and the torsion spring has a tendency to make the small diameter part of the clamping groove 261 contact with the bolt body 600.

[0054] Reference Figure 7 After the bolt body 600 enters the limiting groove 211, when the diameter of the clamping groove 261 at the position where the bolt body 600 contacts the clamping block 260 is smaller than the diameter of the bolt body 600, the position where the two contact is located above the rotation axis of the clamping block 260, and the action force between the two overcomes the elastic force of the torsion spring, prompting the clamping block 260 to rotate counterclockwise and causing the torsion spring to accumulate force until the diameter of the position where the bolt body 600 abuts the clamping groove 261 is equal, and the action force between the two points to the rotation axis of the clamping block 260, and the torsion spring causes the clamping block 260 to have a tendency to rotate clockwise, thereby clamping the bolt body 600 between the clamping block 260 and the first limiting plate 230, after which the bolt body 600 can only rotate and move axially without shaking.

[0055] When the diameter of the clamping groove 261 at the position where the bolt body 600 contacts the clamping block 260 is greater than the diameter of the bolt body 600, the torsion spring causes the clamping block 260 to rotate clockwise until the clamping groove 261, which has the same diameter as the bolt body 600, rotates to a horizontal position. Thereafter, the clamping block 260 and the first limit plate 230 clamp the bolt body 600 and no shaking occurs.

[0056] By setting a variable diameter clamping groove 261, under the premise of ensuring screening accuracy, the contact position of the clamping block 260 and the bolt body 600 can be automatically matched according to the diameter of the bolt body 600, so that the bolt body 600 can be kept vertical and will not shake, thereby improving the practicality of the screening device. At the same time, since it can be automatically matched according to the diameter of the bolt body 600, there is no need to replace accessories when screening bolt bodies 600 of different diameters, thereby improving the screening efficiency.

[0057] In a further embodiment, Figure 5 As shown, a plurality of ejector pins 270 are arranged on the sorting disk 210, and an ejector pin 270 is installed in each limiting groove 211, and the ejector pin 270 extends horizontally; one end can be slidably installed on the sorting disk 210 along its own axis, and the other end points to the axis of the corresponding clamping groove 261; a spring is connected between the ejector pin 270 and the sorting disk 210, and the spring has a tendency to move the ejector pin 270 toward the axis of the clamping groove 261.

[0058] When the bolt body 600 is inserted into the limiting groove 211, it abuts against the ejector pin 270. The bolt body 600 causes the ejector pin 270 to move toward the side connected to the spring. The spring contracts and accumulates force. Under the action of the spring, the ejector pin 270 is inserted into the thread of the bolt body 600. The clamping assembly pushes the bolt body 600 toward the first limiting plate 230, so that the bolt body 600 remains in a vertical state and cannot shake. There is friction between the bolt body 600 and the first limiting plate 230. While the sorting disk 210 rotates, the friction between the bolt body 600 and the first limiting plate 230 causes the bolt body 600 to rotate around its own axis. Since the ejector pin 270 is inserted into the thread of the bolt body 600, while the bolt body 600 rotates, the bolt body 600 moves upward along the axis, thereby leaking out the part originally blocked between the clamping assembly and the first limiting plate 230, further ensuring the integrity of the shooting range of the shooting mechanism 500, thereby improving the screening accuracy.

[0059] In a further embodiment, Figure 4As shown, the first limit plate 230 and the second limit plate 250 are detachably mounted on the support ring 220; a plurality of first limit plates 230 are arranged between the sorting plate 240 and the lower end of the loading track 310, and the plurality of first limit plates 230 are closely arranged along the circumference of the sorting disk 210, and the first limit plate 230 and the second limit plate 250 are both fixedly connected to the support ring 220 by bolts; the sorting plate 240 is detachably mounted on the frame 100. When the length of the bolt body 600 to be screened changes, the above structure can be rearranged according to the length of the bolt body 600 to be screened; when the length of the bolt body 600 to be detected is longer, the number of the first limiting plates 230 is increased, thereby increasing the path length of the bolt body 600 before reaching the sorting plate 240; when the length of the bolt body 600 to be detected is shorter, the number of the first limiting plates 230 is reduced, thereby shortening the path length of the bolt body 600 before reaching the sorting plate 240, so that when the bolt body 600 rotates around its own axis and moves upward along the axial direction, the moving distance is adapted to the length of the bolt body 600, thereby ensuring the integrity of the shooting. Under the premise of ensuring the screening accuracy, bolt bodies 600 of different lengths can be screened, thereby improving the universality of the screening device.

[0060] In a further embodiment, Figure 1 , Figure 3 As shown, the first storage component 410 includes a first slide groove 411 and a first storage box 412; the second storage component 420 includes a second slide groove 421 and a second storage box 422; the upper end of the first slide groove 411 is detachably connected to the support ring 220 and is located below the sorting plate 240, and the lower end is connected to the first storage box 412; the upper end of the second slide groove 421 is detachably connected to the support ring 220 and is located below the end of the second limiting plate 250 away from the sorting plate 240, and the lower end of the second slide groove 421 is connected to the second storage box 422, and the first storage box 412 and the second storage box 422 are installed on the frame 100.

[0061] When the qualified bolt body 600 moves between the sorting disk 210 and the sorting plate 240 , the control component drives the sorting plate 240 away from the sorting disk 210 , and the qualified bolt body 600 falls into the first slide groove 411 under the action of gravity, and slides along the first slide groove 411 into the first storage box 412 .

[0062] After the unqualified bolt body 600 is out of contact with the second limiting plate 250 , it falls into the second slide groove 421 under the action of gravity, and slides along the second slide groove 421 into the second receiving box 422 .

[0063] In a further embodiment, a blowing assembly is provided on the sorting disk 210, and the blowing assembly blows air from the axis of the sorting disk 210 toward the first slide groove 411 and the second slide groove 421; when the qualified bolt body 600 moves to the upper end of the first slide groove 411, the sorting plate 240 moves away from the sorting disk 210, and the qualified bolt body 600 can move radially along the sorting disk 210 in the limiting groove 211; the unqualified bolt body 600 passes through the first limiting plate 230, the sorting plate 240 and the second limiting plate 250 in turn, and after breaking contact with the second limiting plate 250, it can move radially along the sorting disk 210 in the limiting groove 211.

[0064] Thereafter, the bolt body 600 falls from the limiting groove 211 under the action of gravity and wind force, and the qualified bolt body 600 falls into the first sliding groove 411 , and the unqualified bolt body 600 falls into the second sliding groove 421 .

[0065] In a further embodiment, Figure 1 , Figure 3 As shown, the shooting mechanism 500 includes two first camera assemblies 510 and two second camera assemblies 520, and the first camera assemblies 510 and the second camera assemblies 520 are detachably connected to the frame 100; the two first camera assemblies 510 are arranged opposite to each other, and the two second camera assemblies 520 are arranged opposite to each other; the camera of the first camera assembly 510 is located below the sorting disk 210, and the camera of the second camera assembly 520 is located above the sorting disk 210. After the bolt body 600 is inserted into the limiting groove 211, the two first camera assemblies 510 photograph the bolt body 600 below the sorting plate 210. After the bolt body 600 rotates around its own axis and moves upward, the two second camera assemblies 520 photograph the bolt body 600 above the sorting plate 210. The shooting angles of the first camera assembly 510 and the second camera assembly 520 can be calculated so that there is an angle between the line connecting the shooting positions of the two first camera assemblies 510 and the line connecting the shooting positions of the two second camera assemblies 520, thereby further ensuring that the shooting mechanism 500 photographs all detection areas of the bolt body 600 to ensure the accuracy of screening.

[0066] In a further embodiment, Figure 2 , Figure 4 As shown, the control component is a cylinder 241 , which is fixedly mounted on the frame 100 , and the movable end of the cylinder 241 is connected to the sorting plate 240 .

[0067] When the bolt body 600 moved between the sorting plate 240 and the sorting disk 210 is determined to be qualified by the processing system, the cylinder 241 drives the sorting plate 240 away from the sorting disk 210. After the sorting plate 240 moves a preset distance, the bolt body 600 falls under the action of gravity and enters the first storage component 410.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic screening device for anti-loosening bolts, characterized in that: It includes a rack, a screening mechanism, a feeding mechanism, a storage mechanism, a shooting mechanism and a processing system; The screening mechanism comprises a sorting disc, a support ring, a first limit plate, a sorting plate, a second limit plate and a plurality of clamping components; the sorting disc can be rotatably mounted on the frame around its own axis, and the sorting disc is located above the frame; a plurality of limit grooves are evenly arranged on the outer circumference of the sorting disc, and the sorting disc is connected to a driving motor, and the driving motor drives the sorting disc to rotate around its own axis; the support ring is arranged on the outer circumference of the sorting disc, and there is a gap between the support ring and the sorting disc; The first limit plate, the sorting plate and the second limit plate are all fan-shaped, and the three are arranged in sequence along the circumference of the sorting disk, located in the gap between the sorting plate and the support ring, and the first limit plate and the second limit plate are fixedly connected to the support ring; the sorting plate can be installed on the frame to move radially along the sorting disk, and the sorting plate is connected to a control component, which is used to drive the sorting plate to move radially along the sorting disk; the first limit plate is connected to the feeding mechanism at one end away from the second limit plate; a clamping assembly is installed in each limit groove, and the clamping assembly is used to push the bolt body outward radially along the sorting disk and keep the bolt body in a vertical state; The feeding mechanism is installed on the frame, and is used to adjust the bolt body to a vertical state with the head facing upward; a feeding track is provided between the feeding mechanism and the sorting plate, and the feeding track is used to transport the bolt body to the gap between the sorting plate and the first limit plate; The storage mechanism includes a first storage assembly and a second storage assembly, the first storage assembly is arranged below the sorting plate, and the second storage assembly is arranged below an end of the second limiting plate away from the sorting plate; The photographing mechanism is installed on the frame, and is used to photograph the bolt body from multiple angles; The processing system is used to collect the pictures taken by the shooting mechanism and analyze and determine whether the bolt body is qualified; An ejector pin is installed in each limit groove, and the ejector pin has a tendency to move toward the axis of the clamping groove; The clamping assembly includes a clamping block and a driving member. The clamping block is provided with an arc-shaped clamping groove on one side away from the sorting plate. The center of the clamping groove faces outward, and the clamping groove has a portion equal to the outer diameter of the bolt body. The driving member makes the portion of the clamping groove equal to the diameter of the bolt body abut against the bolt body and applies outward pressure to the bolt body. The clamping block is wheel-shaped with its axis extending horizontally. The clamping block can be installed in the limit groove so as to rotate around its own axis. The clamping groove extends along the circumference of the clamping block. The cross-section of the clamping groove along the radial direction of the clamping block is an arc with the center of the circle pointing outward, and the diameter of the clamping groove gradually increases along the first rotation direction. The driving member is a torsion spring, and the two ends of the torsion spring are respectively connected to the sorting plate and the clamping block. The torsion spring has a tendency to make the small diameter part of the clamping groove contact with the bolt body.

2. The automatic screening device for anti-loosening bolts according to claim 1, characterized in that: The ejector pin extends horizontally, one end of which can be slidably mounted on the sorting disk along its own axis, and the other end of which points to the axis of the corresponding clamping groove; a spring is connected between the ejector pin and the sorting disk, and the spring has a tendency to move the ejector pin toward the axis of the clamping groove.

3. The automatic screening device for anti-loosening bolts according to claim 1 is characterized in that: The first limiting plate and the second limiting plate are detachably mounted on the supporting ring; the sorting plate is detachably mounted on the frame.

4. The automatic screening device for anti-loosening bolts according to claim 3 is characterized in that: A plurality of first limit plates are arranged between the sorting plate and the lower end of the feeding track. The plurality of first limit plates are closely arranged along the circumference of the sorting plate. The first limit plates and the second limit plates are fixedly connected to the support ring by bolts.

5. The automatic screening device for anti-loosening bolts according to claim 1, characterized in that: The first storage component includes a first slide groove and a first storage box; the second storage component includes a second slide groove and a second storage box; the upper end of the first slide groove is detachably connected to the support ring and is located below the sorting plate, and the lower end is connected to the first storage box; the upper end of the second slide groove is detachably connected to the support ring and is located below the end of the second limiting plate away from the sorting plate, the lower end of the second slide groove is connected to the second storage box, and the first storage box and the second storage box are installed on the frame.

6. The automatic screening device for anti-loosening bolts according to claim 5, characterized in that: The sorting disc is provided with an air blowing assembly, which blows air from the axis of the sorting disc toward the first chute and the second chute.

7. The automatic screening device for anti-loosening bolts according to claim 1, characterized in that: The shooting mechanism includes two first camera assemblies and two second camera assemblies, and the first camera assemblies and the second camera assemblies are detachably connected to the frame; the two first camera assemblies are arranged opposite to each other, and the two second camera assemblies are arranged opposite to each other; the cameras of the first camera assemblies are located below the sorting disk, and the cameras of the second camera assemblies are located above the sorting disk.

8. The automatic screening device for anti-loosening bolts according to claim 1, characterized in that: The control component is a cylinder, which is fixedly installed on the frame, and the movable end of the cylinder is connected to the sorting plate.

Images