A multifunctional detection and dispensing device and method thereof

Abstract

This invention discloses a multifunctional inspection and material sorting device and method, including a rotary table, a feeding mechanism, a multi-station visual inspection mechanism, a straightness inspection mechanism, a go gauge inspection machine, and a material sorting and unloading mechanism. The rotary table is driven to rotate intermittently by a cam divider. The outer circumference is arranged with feeding stations, multiple inspection stations, and material sorting stations. Straightness inspection uses a follow-up contact cam bearing in conjunction with a displacement sensor. A combination of side-view, line-scan, and top-view cameras achieves full-circumference appearance and dimensional inspection. An auxiliary pressure rotation device drives the product to rotate 360° for inspection without blind spots. The go gauge inspection machine performs thread torque inspection. The material sorting mechanism sorts materials into qualified, straightness-unqualified, and other unqualified categories, with qualified products output neatly and horizontally. Through the above methods, this invention achieves integrated end-to-end processing, comprehensive and accurate inspection, stable and efficient operation, and standardized material sorting without damage, significantly improving automation and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automated bolt inspection technology, and in particular to a multifunctional inspection and sorting device and method thereof. Background Technology

[0002] Bolts are commonly used industrial fasteners, and their dimensional accuracy, appearance quality, straightness, and thread gauge performance directly affect assembly reliability and safety of use. Existing automated bolt testing equipment generally suffers from problems such as limited functionality, incomplete testing dimensions, fragmented processes, and low automation integration.

[0003] The bolt automatic inspection machine with publication number CN108672313B uses a rotary table for intermittent feeding and only integrates height detection and thread gauge detection functions. It can complete the bolt length and thread qualification judgment, but it does not cover full appearance inspection, straightness detection, and key dimension detection such as flange / gasket / lace. The inspection items are seriously insufficient and cannot achieve full-item quality inspection. At the same time, the equipment only has a simple discharge mechanism, without a product rotation auxiliary pressure mechanism, and no function for regular unloading and sorting. It is difficult to meet the needs of complex defect detection and subsequent packaging.

[0004] The bolt straightness screening machine with publication number CN110038814B is specifically designed for testing bolt straightness. It uses a signal transmission and reception unit and a pressure testing unit in conjunction with a test tube group to achieve screening. It can only complete the single index test of straightness and does not integrate functions such as multi-view visual inspection, torque gauge inspection, and appearance defect inspection, thus its inspection dimensions are limited.

[0005] Based on existing technologies, traditional bolt inspection production lines generally have significant shortcomings: First, their inspection functions are fragmented, either only performing dimensional and gauge inspections or only straightness screening, failing to achieve one-stop inspection of all items such as appearance, dimensions, straightness, thread torque, and flange gaskets; second, their inspection stability is insufficient, with most equipment lacking product elastic pressure and 360° rotation drive mechanisms, making it impossible to achieve full-circumference scanning of bolts without blind spots, and making it difficult to detect hidden defects such as tooth damage and cracks; third, their material sorting and unloading methods are rudimentary, often using simple blowing or pushing, failing to achieve orderly and orderly output of qualified products, and making it difficult to accurately classify and remove unqualified products by type, easily leading to problems such as mixing and reflow, and making them unsuitable for automated packaging and large-scale production.

[0006] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a multifunctional detection and material distribution device and method. Summary of the Invention

[0007] The main technical problem solved by this invention is to provide a multifunctional testing and material sorting device and method, which solves the technical problems of existing bolt testing equipment, such as single testing dimensions, scattered processes, low degree of automation integration, poor testing stability, and non-standard material sorting and unloading, and realizes one-stop testing of all items and full-process automation integration.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a multi-functional detection and material distribution device includes a rotating disk, a feeding opening arranged at equal angles on the rotating disk, a loading station arranged around the rotating disk, a first detection station, a second detection station, a straightness detection station, a third detection station, a fourth detection station, a gauge detection station, and a material distribution station. The size of the feeding opening depends on the diameter of the product to be detected. Each detection station is provided with a baffle plate opposite to the feeding opening to prevent the product from falling. A feeding mechanism, located at the feeding position, sequentially feeds the products to be tested to the installation position; The first inspection unit is set up at the first inspection station and uses a CCD camera to inspect the product from the top view. The second inspection unit is set up at the second inspection station and includes several side-view cameras that inspect the upper and lower parts of the product. A straightness testing mechanism is installed at the straightness testing station and includes at least two sets of follow-up testing components for testing the straightness of the product. The third inspection unit is set up at the third inspection station and includes several line scan cameras that inspect the outer sides of the product. The fourth inspection unit is located at the fourth inspection station and uses an upward-viewing camera to inspect the top of the product.

[0009] A go gauge inspection machine is installed at the go gauge inspection station; The material sorting and unloading mechanism is set at the sorting station, which sorts the products to be tested and arranges the qualified products neatly before outputting them.

[0010] Preferably, the follow-up detection assembly includes a fixed plate, a slide rail horizontally slidably mounted on the fixed plate, a fixed seat mounted on the end of the slide rail near the product, a cam bearing mounted on the fixed seat for rolling contact with the rotating surface of the product, a spring fitted on the slide rail and abutting against the fixed seat and the fixed plate at both ends, a vertical rod mounted on the tail of the slide rail, a retraction cylinder mounted on the fixed plate for driving the cam bearing away from the product to avoid displacement, and a displacement sensor mounted on the fixed plate for use in conjunction with the vertical rod.

[0011] Preferably, the rotary disk is driven by the drive mechanism to rotate at equal angles. The drive mechanism includes a cam divider and a servo motor that drives the cam divider to rotate. The rotary disk is mounted on the output end of the cam divider.

[0012] Preferably, the second inspection station, the straightness inspection station, and the third inspection station are all equipped with auxiliary pressure rotating devices for applying auxiliary pressure to the product and driving it to rotate. The auxiliary pressure rotating device includes a lifting frame, an auxiliary pressure rotating structure, a lifting plate, a product support seat, a lifting cylinder, and a connecting rod. The lifting frame includes at least two columns capable of lifting, which vertically pass through the worktable surface and the outer ring baffle of the rotating disk. An auxiliary pressure rotating structure that presses down and inserts into the product and drives it to rotate is installed on the top plate of the lifting frame. The lifting plate is slidably mounted on the columns, and a product support seat is rotatably installed on the lifting plate. A lifting cylinder is also installed on the worktable, and the piston rod of the lifting cylinder is fixedly connected to the lifting plate through a connecting rod.

[0013] Preferably, the auxiliary pressure rotating structure includes a rotating sleeve rotatably mounted on the top plate of the lifting frame, a motor driving the rotating sleeve to rotate, a rotating shaft movably mounted inside the rotating sleeve, a bit installed at the lower end of the rotating shaft that can be inserted into the inner corner of the product, and a buffer spring mounted on the rotating shaft above the bit.

[0014] Preferably, the lifting action of the lifting frame is driven by the servo motor through a transmission structure or directly by a cylinder.

[0015] Preferably, the transmission structure includes a transmission shaft synchronously connected to the output shaft of the servo motor via a pulley assembly, a cam mounted on the transmission shaft, a first fisheye bearing rotatably mounted on the cam and a second fisheye bearing fixedly connected to the first fisheye bearing, and the other end of the second fisheye bearing being rotatably connected to the lifting frame base plate.

[0016] Preferably, the material feeding mechanism is provided with finished product feeding positions and defective product feeding positions sequentially along the rotary feeding direction. Each feeding position is equipped with a pushing component, and a guide trough is connected to the outer side of the pushing component. A conveyor line for outputting products is connected below the guide trough. The pushing component is mounted on the frame, and the top plate of the frame cooperates with the rotary disc to prevent products from falling from non-feeding positions. The pushing component includes a mounting plate positioned above the feeding opening, a pushing plate horizontally slidably mounted on the mounting plate, and a pushing cylinder mounted on the end of the mounting plate to drive the pushing plate to move and push the product. A material handling assembly is provided at the finished product unloading position. The material handling assembly includes a pen-shaped cylinder, a baffle mounted on the piston rod of the pen-shaped cylinder, a straight feeding channel that connects to the feeding opening at the finished product unloading position, a material stop installed at the end of the straight feeding channel, and a clamping rotating component that connects to the output end of the straight feeding channel. The unloading position for defective products is further divided into a straightness defect unloading position and other unqualified unloading positions. A baffle inclined plate is provided at the unloading position located at the end of the rotation to push the product out during rotation. The baffle inclined plate is located above the rotating disk and is set at an angle to prevent the product from circulating into the next loading position.

[0017] A multifunctional detection and material distribution method includes the following steps: S1. Feeding: The feeding mechanism feeds the products sequentially to the feeding opening of the rotary table by feeding the products through a vibratory feeder. S2. Top Appearance Inspection: The rotating disc moves the product from the feeding opening to the first inspection station. The first inspection mechanism performs visual inspection on the top of the product, including the top of the bolts, the angle of the multi-angle bolts, the flange thickness, the head mark, and the inner plum blossom hole. S3. Lateral Inspection: The product is moved to the second inspection station. The auxiliary pressure rotating device elastically presses down on the product and drives it to rotate. Specifically, the product support seat moves up to support the bottom of the bolt, and the auxiliary pressure rotating structure elastically presses down and inserts into the inner corner of the top of the bolt. The motor drives the product to rotate, and the product support seat rotates accordingly. Several side-view cameras inspect the product in the length direction, and inspect the bolt head height, head diameter, missing shims, multiple shims, shim reversal, and support surface protrusion. They also inspect the bolt tail shape, external thread diameter, oblique pressure, rod length, thread length, and starting thread outer diameter. S4. Straightness detection: The follow-up detection component moves backward to avoid the product. The product rotates to the straightness detection station. The auxiliary pressure rotation device elastically presses down on the product and drives it to rotate. The follow-up detection component resets. The cam bearing rolls into contact with the rotating surface of the product. If the product's straightness is abnormal, the cam bearing will be pushed outward by the product. The displacement sensor detects that the upright moving synchronously with the cam bearing exceeds the limit range, which is judged as poor straightness. Otherwise, the straightness is qualified. S5. Line scan inspection: The product is transferred to the third inspection station. The auxiliary pressure rotating device elastically presses down on the product and drives it to rotate. The line scan camera scans the outer side of the product around the circle to inspect for bolt damage and side cracks on the flange surface. The thread length can be detected in mm. S6. Second inspection at the top: The product is transferred to the fourth inspection station, where the top camera inspects the top of the product again, checking the diameter of the flange at the top of the bolt, the diameter of the gasket, the lace trim, and whether there is any missing gasket material. S7. Go gauge inspection: The product is transferred to the go gauge inspection station. The go gauge head of the go gauge inspection machine is engaged with the threaded part of the bolt. It moves down and rotates at the same time to check whether the go gauge torque value of the product parts meets the set value when it is tightened. After the inspection is completed, it is reversed and reset. S8. Material sorting: The product is transferred to the finished product unloading position. Products that pass the inspection in steps SS are finished products. The pen-shaped cylinder drives the baffle to move backward, and the pushing component pushes the finished product to the straight feeding channel. The clamping and rotating component clamps the vertical finished product and rotates it to a horizontal position and places it on the conveyor line here. Finished products are output in an orderly manner. When a product is detected as unqualified, the pen-shaped cylinder drives the baffle to extend and block the product at the finished product unloading position. The product is transferred to the unqualified product unloading position, where the pushing component pushes the product down. The product falls along the guide chute onto the conveyor line below.

[0018] Preferably, steps S2 to S7 are not sequential; in step S8, the finished product unloading and the defective product unloading steps are not sequential.

[0019] Compared with the prior art, the beneficial effects of the present invention are: Comprehensive and reliable inspection: It integrates top-view CCD, side-view camera, line scan camera, top-view camera, follow-up contact straightness inspection and torque gauge inspection, covering all items of appearance, size, straightness and thread torque. The inspection dimensions are complete, the false detection rate is low, and it meets the requirements of high-precision bolt quality inspection. Stable testing process without damaging products: Equipped with an elastic auxiliary pressure rotation device, it can elastically press down and drive the product to rotate 360°. Combined with the follow-up detection component, it can elastically avoid contact detection, ensuring testing stability and avoiding damage or scratches to the product. Precise material sorting and standardized output: Materials are sorted and cut into qualified products, straightness-inadequate products, and other unqualified products; qualified products are clamped and rotated to be output in an orderly manner in a horizontal state, which is convenient for subsequent packaging and prevents mixing, backflow and jamming problems. Highly adaptable and versatile: The feeding opening can be adjusted according to the diameter of the product to be inspected, and the inspection parameters can be flexibly set, making it suitable for automated inspection and sorting of various specifications of bolts and fasteners. Attached Figure Description

[0020] Figure 1 This is a top view of a multifunctional detection and material sorting device.

[0021] Figure 2 This is a partial structural diagram of a multifunctional detection and material sorting device.

[0022] Figure 3 This is a schematic diagram of the follow-up detection component of a multifunctional detection and material distribution device.

[0023] Figure 4 This is a schematic diagram of the auxiliary pressure rotating device of a multifunctional detection and material distribution equipment.

[0024] Figure 5 This is a schematic diagram of the auxiliary pressure rotating structure of a multifunctional detection and material distribution device.

[0025] Figure 6 This is a schematic diagram of the transmission structure of a multifunctional detection and material sorting device.

[0026] Figure 7 This is a schematic diagram of the material feeding mechanism of a multifunctional detection and material distribution device.

[0027] Figure 8 This is a schematic diagram of the pushing component structure of a multifunctional detection and dispensing device. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0029] Please see Figures 1 to 8 The embodiments of the present invention include: A multifunctional inspection and material distribution device includes a rotating disk 1, a feeding opening arranged at equal angles on the rotating disk 1, a loading station arranged around the rotating disk 1, a first inspection station, a second inspection station, a straightness inspection station, a third inspection station, a fourth inspection station, a gauge inspection station, and a material distribution station. The size of the feeding opening is determined according to the diameter of the product to be inspected. Each inspection station is provided with a baffle plate opposite to the feeding opening to prevent the product from falling. The feeding mechanism 2 is located at the feeding position and sequentially feeds the bolts of the product to be tested to the installation position; The first inspection unit 3 is set up at the first inspection station and uses a CCD camera to inspect the product from the top view. The second inspection unit 4 is set at the second inspection station and includes several side-view cameras that inspect the upper and lower parts of the product. A straightness detection mechanism 5 is installed at the straightness detection station and includes at least two sets of follow-up detection components 50 for detecting the straightness of the product. The third inspection unit 6 is set at the third inspection station and includes several line scan cameras that inspect the outer sides of the product. The fourth inspection unit 7 is set at the fourth inspection station and uses an upward-viewing camera to inspect the top of the product.

[0030] The go-go gauge inspection machine 8 is installed at the go-go gauge inspection station; The material sorting and unloading mechanism 9 is set at the material sorting station, which sorts the tested products and arranges the qualified products neatly before outputting them.

[0031] The follow-up detection assembly 50 includes a fixed plate 501, a slide rail 502 horizontally slidably mounted on the fixed plate 501, a fixed seat 503 mounted on the end of the slide rail 502 near the product, a cam bearing 504 mounted on the fixed seat 503 for rolling contact with the rotating surface of the product, a spring 505 fitted on the slide rail 502 and abutting against the fixed seat 503 and the fixed plate 501 at both ends, a vertical rod 506 mounted on the tail of the slide rail 502, a retraction cylinder 507 mounted on the fixed plate 501 to drive the cam bearing 504 away from the product for repositioning, and a displacement sensor 508 mounted on the fixed plate 501 and used in conjunction with the vertical rod 506.

[0032] The rotating disk 1 is driven by the driving mechanism to rotate at equal angles. The driving mechanism includes a cam divider and a servo motor that drives the cam divider to rotate. The rotating disk 1 is installed at the output end of the cam divider.

[0033] The second inspection station, the straightness inspection station, and the third inspection station are all equipped with auxiliary pressure rotating devices 10 for applying auxiliary pressure to the product and driving it to rotate. The auxiliary pressure rotating device 10 includes a lifting frame 101, an auxiliary pressure rotating structure 102, a lifting plate 103, a product support seat 104, a lifting cylinder 105, and a connecting rod 106. The lifting frame 101 includes at least two columns capable of lifting and lowering. The columns vertically pass through the worktable surface and the outer ring baffle of the rotating disk 1. The auxiliary pressure rotating structure 102, which presses down and inserts into the product and drives it to rotate, is installed on the top plate of the lifting frame 101. The lifting plate 103 is slidably mounted on the columns. The product support seat 104 is rotatably mounted on the lifting plate 103. The product support seat 104 is mounted on the lifting plate 103 through a bearing seat. The lifting cylinder 105 is also installed on the worktable. The piston rod of the lifting cylinder 105 is fixedly connected to the lifting plate 103 through the connecting rod 106.

[0034] The auxiliary pressure rotating structure 102 includes a rotating sleeve 1021 rotatably mounted on the top plate of the lifting frame 101, a motor 1022 driving the rotating sleeve 1021 to rotate, a rotating shaft 1023 movably mounted inside the rotating sleeve 1021, a bit 1024 installed at the lower end of the rotating shaft 1023 that can be inserted into the inner corner of the product, and a buffer spring 1025 mounted on the rotating shaft 1023 above the bit 1024. The rotating sleeve 1021 has symmetrical waist-shaped limiting openings in the vertical direction, and a limiting support shaft 1026 passing through the waist-shaped limiting openings is installed on the upper part of the rotating shaft 1023.

[0035] The lifting action of the lifting frame 101 is driven by the servo motor through the transmission structure 11 or directly by the cylinder.

[0036] The transmission structure 11 includes a transmission shaft 111 synchronously connected to the output shaft of the servo motor via a pulley assembly, a cam 112 mounted on the transmission shaft 111, a first fisheye bearing 113 rotatably mounted on the cam 112 and a second fisheye bearing 114 fixedly connected to the first fisheye bearing 113, and the other end of the second fisheye bearing 114 rotatably connected to the base plate of the lifting frame 101.

[0037] The feeding mechanism 9 is provided with finished product feeding positions and defective product feeding positions in sequence along the rotating feeding direction. Each feeding position is equipped with a pusher assembly 91. A guide trough 92 is connected to the outer side of the pusher assembly 91, and a conveyor line 93 for outputting products is connected below the guide trough 92. The pusher assembly 91 is mounted on the frame, and the top plate of the frame cooperates with the rotating disk 1 to prevent products from falling from non-feeding positions. The pusher assembly 91 includes a mounting plate 911 positioned above the feeding opening, a pusher plate 912 horizontally slidably mounted on the mounting plate 911, and a pusher cylinder 913 mounted on the end of the mounting plate 911 to drive the pusher plate 912 to move and push products. A preventer is also installed on the side of the pusher plate 912 near the feeding opening to prevent... The product is crushed by an elastic pad 914. A material-picking component 94 is provided at the finished product unloading position. The material-picking component 94 includes a pen-shaped cylinder 941, a baffle 942 installed on the piston rod of the pen-shaped cylinder 941, a straight feeding channel 943 connected to the feeding opening at the finished product unloading position, a material-blocking component 944 installed at the end of the straight feeding channel 943, and a clamping rotating component 945 connected to the output end of the straight feeding channel 943. The unloading position for defective products is further divided into a straightness defective unloading position and other unqualified unloading positions. A baffle 95 for pushing the product out during rotation is provided at the unloading position at the end of the rotation. The baffle 95 is located above the rotating disk 1 and is set at an angle to prevent the product from circulating into the next loading position.

[0038] A multifunctional detection and material distribution method includes the following steps: S1. Feeding: The feeding mechanism 2 feeds the products sequentially to the feeding opening of the rotary table 1 by feeding the products through the vibrating plate. S2. Top appearance inspection: Rotating disc 1 rotates to move the product at the feeding opening to the first inspection station. The first inspection mechanism 3 performs visual inspection on the top of the product, including inspection of the bolt top edges and corners, the angle of the multi-angle bolts, the flange excess, the head mark, and the inner plum blossom hole. S3. Lateral inspection: The product is transferred to the second inspection station. The auxiliary pressure rotating device 10 elastically presses down on the product and drives it to rotate. Specifically, the product support seat 104 moves up to support the bottom of the bolt, and the auxiliary pressure rotating structure 102 elastically presses down and inserts into the inner corner of the top of the bolt. The motor 1022 drives the product to rotate, and the product support seat 104 rotates accordingly. Several side-view cameras inspect the product in the length direction, and inspect the bolt head height, head diameter, missing shims, multiple shims, shim reversal, and support surface protrusion. They also inspect the bolt tail shape, external thread diameter, oblique pressure, rod length, thread length, and starting thread outer diameter. S4. Straightness detection: The follow-up detection component 50 moves backward to avoid the product. The product rotates to the straightness detection station. The auxiliary pressure rotation device 10 elastically presses down on the product and drives it to rotate. The follow-up detection component 50 resets. The cam bearing 504 rolls in contact with the rotating surface of the product. If the straightness of the product is abnormal, the cam bearing 504 will be pushed outward by the product. The displacement sensor 508 detects that the upright 506, which moves synchronously with the cam bearing 504, exceeds the limit range. It is judged as poor straightness. Otherwise, the straightness is qualified. S5. Line scan inspection: The product is transferred to the third inspection station. The auxiliary pressure rotating device 10 elastically presses down on the product and drives it to rotate. The line scan camera scans the outer side of the product around the perimeter to inspect for bolt damage and flange side cracks. It can detect thread lengths of up to 80mm. S6. Second inspection at the top: The product is transferred to the fourth inspection station, where the top camera inspects the top of the product again, checking the diameter of the flange at the top of the bolt, the diameter of the gasket, the lace trim, and whether there is any missing gasket material. S7. Go gauge inspection: The product is transferred to the go gauge inspection station. The go gauge head of the go gauge inspection machine 8 is engaged with the threaded part of the bolt. It moves down and rotates at the same time to check whether the go gauge torque value of the product parts meets the set value when it is tightened. After the inspection is completed, it is reversed and reset. S8. The product is transferred to the finished product unloading position. Products that have passed the inspection in steps S2-S6 are finished products. The pen-shaped cylinder 941 drives the baffle 942 to move backward. The pushing component 91 pushes the finished product to the straight feeding channel 943. The clamping rotating part 945 clamps the vertical finished product and rotates it to a horizontal state and places it on the conveyor line 93 here. The finished products are output in an orderly manner. When the product is found to be unqualified, the pen-shaped cylinder 941 drives the baffle 942 to extend and block the product at the finished product unloading position. The product is transferred to the unqualified product unloading position. The pushing component 91 pushes the product down here. The product falls along the guide chute 92 onto the conveyor line 93 below here.

[0039] Steps S2 to S7 are not in any particular order; in step S8, the steps of unloading finished products and unloading defective products are not in any particular order.

[0040] This invention provides a multifunctional detection and material sorting device and method, which achieves integrated operation throughout the entire process, comprehensive and accurate detection, stable and efficient operation, and standardized material sorting without damaging the materials, thus significantly improving the level of automation and production efficiency.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-functional detecting and distributing device, characterized by: It includes: The rotating disk (1), the feeding openings set at equal angles on the rotating disk (1), the loading positions set around the rotating disk (1), the first inspection station, the second inspection station, the straightness inspection station, the third inspection station, the fourth inspection station, the gauge inspection station, and the material distribution station; The feeding mechanism (2) is set at the feeding position and sequentially feeds the products to be tested to the installation position; The first inspection unit (3) is set up at the first inspection station and uses a CCD camera to inspect the top view of the product. The second inspection unit (4) is set up at the second inspection station and includes several side-view cameras that inspect the upper and lower parts of the product. A straightness detection mechanism (5) is set at the straightness detection station, including at least two sets of follow-up detection components (50) for detecting the straightness of the product. The third inspection unit (6) is set up at the third inspection station and includes several line scan cameras that inspect the outer sides of the product. The fourth inspection unit (7) is set up at the fourth inspection station and uses an upward-viewing camera to inspect the top of the product; A go gauge inspection machine (8) is installed at the go gauge inspection station; The material sorting and unloading mechanism (9) is set at the material sorting station to classify the tested products and arrange the qualified products neatly before outputting them.

2. The multifunctional detection and dispensing device according to claim 1, characterized in that: The follow-up detection assembly (50) includes a fixed plate (501), a slide rail (502) horizontally slidably mounted on the fixed plate (501), a fixed seat (503) mounted on the end of the slide rail (502) near the product, a cam bearing (504) mounted on the fixed seat (503) for rolling contact with the rotating surface of the product, a spring (505) fitted on the slide rail (502) and abutting both ends against the fixed seat (503) and the fixed plate (501), a vertical rod (506) mounted on the tail of the slide rail (502), a retraction cylinder (507) mounted on the fixed plate (501) to drive the cam bearing (504) away from the product for repositioning, and a displacement sensor (508) mounted on the fixed plate (501) and used in conjunction with the vertical rod (506).

3. The multifunctional detection and dispensing device according to claim 1, characterized in that: The rotating disk (1) is driven by the driving mechanism to rotate at equal angles. The driving mechanism includes a cam divider and a servo motor that drives the cam divider to rotate. The rotating disk (1) is installed at the output end of the cam divider.

4. The multifunctional detection and dispensing device according to claim 1, characterized in that: The second inspection station, the straightness inspection station, and the third inspection station are all equipped with auxiliary pressure rotating devices (10) for applying auxiliary pressure to the product and driving it to rotate; the auxiliary pressure rotating device (10) includes a lifting frame (101), an auxiliary pressure rotating structure (102), a lifting plate (103), a product support base (104), a lifting cylinder (105), and a connecting rod (106). The lifting frame (101) includes at least two columns capable of lifting, with the columns vertically passing through... The worktable and the outer ring baffle of the rotating disk (1) are equipped with an auxiliary pressure rotating structure (102) that presses down and inserts into the product and drives it to rotate on the top plate of the lifting frame (101). The lifting plate (103) is slidably mounted on the column. The product support seat (104) is rotatably mounted on the lifting plate (103). The lifting cylinder (105) is also installed on the worktable. The piston rod of the lifting cylinder (105) is fixedly connected to the lifting plate (103) through the connecting rod (106).

5. The multifunctional detection and dispensing device according to claim 1, characterized in that: The auxiliary pressure rotating structure (102) includes a rotating sleeve (1021) rotatably mounted on the top plate of the lifting frame (101), a motor (1022) driving the rotating sleeve (1021) to rotate, a rotating shaft (1023) movably mounted inside the rotating sleeve (1021), a bit (1024) installed at the lower end of the rotating shaft (1023) and capable of being inserted into the inner corner of the product, and a buffer spring (1025) mounted on the rotating shaft (1023) above the bit (1024).

6. The multifunctional detection and dispensing device according to claim 5, characterized in that: The lifting action of the lifting frame (101) is driven by the servo motor through the transmission structure (11) or directly by the cylinder.

7. The multifunctional detection and dispensing device according to claim 6, characterized in that: The transmission structure (11) includes a transmission shaft (111) synchronously connected to the output shaft of the servo motor via a pulley assembly, a cam (112) mounted on the transmission shaft (111), a first fisheye bearing (113) rotatably mounted on the cam (112), and a second fisheye bearing (114) fixedly connected to the first fisheye bearing (113). The other end of the second fisheye bearing (114) is rotatably connected to the base plate of the lifting frame (101).

8. The multifunctional detection and dispensing device according to claim 1, characterized in that: The feeding mechanism (9) is provided with finished product feeding position and unqualified product feeding position in sequence along the rotation feeding direction. Each feeding position is provided with a pusher assembly (91). A guide groove (92) is connected to the outside of the pusher assembly (91). A conveyor line (93) for outputting products is connected to the bottom of the guide groove (92). The pusher assembly (91) is installed on the frame. The top plate of the frame cooperates with the rotary disk (1). The pusher assembly (91) includes a mounting plate (911) set above the feeding opening, a pusher plate (912) horizontally slidably installed on the mounting plate (911), and a pusher cylinder (913) installed at the end of the mounting plate (911) to drive the pusher plate (912) to move and push the material. A material handling assembly (94) is provided at the finished product unloading position. The material handling assembly (94) includes a pen-shaped cylinder (941), a baffle (942) installed on the piston rod of the pen-shaped cylinder (941), a straight feeding channel (943) connected to the feeding opening at the finished product unloading position, a baffle (944) installed at the end of the straight feeding channel (943), and a clamping rotating component (945) connected to the output end of the straight feeding channel (943). The unqualified product unloading position is further divided into a straightness unqualified unloading position and other unqualified unloading positions. A baffle (95) for pushing the product out during rotation is provided at the unloading position at the end of the rotation. The baffle (95) is located above the rotating disk (1) and is set at an angle.

9. The detection and dispensing method of a multifunctional detection and dispensing device according to any one of claims 1-8, characterized in that: Includes the following steps: S1, Feeding: The feeding mechanism (2) feeds the products sequentially to the feeding opening of the rotary table (1) by means of a vibrating plate. S2, Top appearance inspection: Rotary disk (1) rotates to transfer the product at the feeding opening to the first inspection station. The first inspection mechanism (3) performs visual inspection on the top of the product, and inspects the bolt top opposite sides and corners, the angle of the multi-angle bolt, the flange flesh, the head mark and the inner plum blossom hole. S3, Lateral inspection: The product is moved to the second inspection station. The auxiliary pressure rotating device (10) elastically presses down on the product and drives it to rotate. Specifically, the product support seat (104) moves up to support the bottom of the bolt. The auxiliary pressure rotating structure (102) elastically presses down and inserts into the inner corner of the top of the bolt. The motor (1022) drives the product to rotate. The product support seat (104) rotates accordingly. Several side-view cameras inspect the product length direction. The bolt head height, head diameter, missing shims, multiple shims, shim reversal, and support surface protrusion are inspected. The bolt tail shape, external thread diameter, oblique pressure, rod length, thread length, and starting thread outer diameter are inspected. S4. Straightness detection: The follow-up detection component (50) moves backward to avoid the product. The product is rotated to the straightness detection station. The auxiliary pressure rotation device (10) elastically presses down on the product and drives it to rotate. The follow-up detection component (50) is reset. The cam bearing (504) rolls in contact with the rotating surface of the product. If the straightness of the product is abnormal, the cam bearing (504) will be pushed outward by the product. The displacement sensor (508) detects that the upright (506) moving synchronously with the cam bearing (504) exceeds the limit range, which is judged as poor straightness. Otherwise, the straightness is qualified. S5, Line scan inspection, the product is transferred to the third inspection station, the auxiliary pressure rotating device (10) elastically presses down on the product and drives it to rotate, the line scan camera scans the outer side of the product around the circle, and inspects whether the bolts have tooth damage and the side cracks of the flange face, and the inspection thread length is 80mm. S6. Second inspection at the top: The product is transferred to the fourth inspection station, where the top camera inspects the top of the product again, checking the diameter of the flange at the top of the bolt, the diameter of the gasket, the lace trim, and whether there is any missing gasket material. S7. Go gauge inspection: The product is transferred to the go gauge inspection station. The go gauge head of the go gauge inspection machine (8) is engaged with the bolt thread. It moves down and rotates at the same time to check whether the go gauge torque value of the product parts meets the setting when it is being screwed. After the inspection is completed, it is reversed and reset. S8. The product is transferred to the finished product unloading position. The product that has passed the inspection in steps S2-S6 is the finished product. The pen-shaped cylinder (941) drives the baffle (942) to move backward. The pushing component (91) pushes the finished product to the straight feeding channel (943). The clamping rotating part (945) clamps the vertical finished product and turns it to a horizontal state and places it on the conveyor line (93) here. The finished products are output in an orderly manner. When the product is found to be unqualified, the pen-shaped cylinder (941) drives the baffle (942) to extend and block the product at the finished product unloading position. The product is transferred to the unqualified product unloading position. The pushing component (91) here pushes the product down. The product falls along the guide groove (92) onto the conveyor line (93) below here.

10. The multifunctional detection and dispensing method according to claim 9, characterized in that: Steps S2 to S7 are not in any particular order; in step S8, the steps of unloading finished products and unloading defective products are not in any particular order.

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