An automated sorting device and method for industrial batch bolts based on geometric features

Abstract

This invention discloses an automated sorting device and method for industrial batch bolts based on geometric features, belonging to the field of automated sorting technology for industrial fasteners. The device includes a bolt head diameter sorting module, a bolt diversion and conveying module, a bolt spatial posture control module, a bolt thread length sorting module, and a housing. The head diameter sorting module uses a centrifugal multi-diameter slotted screen for grading; the posture control module uses a magnetic roller and a geometric guide to straighten the bolts into a vertical position; and the length sorting module uses a gradient impact rod and a rotating clamping roller to sort the thread length. The method sequentially realizes centrifugal diameter sorting, diversion and conveying, posture straightening, and gradient length sorting, enabling automated sorting of bolts of various diameters and lengths in a single operation. This invention features high integration, high sorting accuracy, and stable operation, effectively improving the efficiency of industrial bolt sorting, reducing labor costs, and is suitable for batch bolt sorting scenarios in machinery, automotive, and electronics industries.

Description

Technical Field

[0001] This invention relates to the field of industrial standard parts sorting, specifically to an automated sorting device and method for industrial batch bolts based on geometric features. Background Technology

[0002] With the increasing maturity of automated manufacturing technology, bolts, as core fasteners in machining, hardware manufacturing, electronic assembly, and automotive parts production, have seen a continuous increase in usage, becoming an indispensable component of modern industrial production systems. However, bolt specifications are diverse, with significant differences in diameter, length, head shape, thread type, and material required for different scenarios. Sorting accuracy and efficiency directly affect the cycle time, assembly quality, and production costs of the entire production line. Traditional manual sorting methods are not only inefficient and produce inconsistent sorting quality, but also involve high labor costs and the risk of operator injury. Existing bolt sorting technologies suffer from insufficient automation and intelligence, severely limiting their sorting efficiency and accuracy, and failing to meet the industry's demand for highly automated sorting solutions. Therefore, developing a stable, low-cost, and intelligently autonomous bolt sorting machine has become a key link in promoting the high-quality development of automation and intelligence in the manufacturing industry. Summary of the Invention

[0003] The technical problem this invention aims to solve is to address the shortcomings of the existing technology by proposing an automated industrial batch bolt sorting device based on geometric features. Through the step-by-step action of various modules on the bolt sorting machine, efficient and accurate bolt screening is achieved, while ensuring operational stability.

[0004] To achieve the above-mentioned technical features, the objective of this invention is as follows: The first aspect provides an automated industrial batch bolt sorting device based on geometric features, including a bolt head diameter sorting module. The bolt head diameter sorting module has evenly distributed threaded holes at its lower part, which are fixedly connected to the outer shell of the automated bolt sorting device. The outer shell of the automated bolt sorting device is fixedly connected to a bolt diversion and conveying module via an upper fixing plate fixed port inside. The outer shell of the automated bolt sorting device is fixedly connected to a bolt spatial attitude control module via a middle fixing plate fixed port inside. The bolt thread length sorting module has a transverse limiting spindle in its middle, with threaded holes at its upper end fixedly connected to the bolt head diameter sorting module. The transverse limiting spindle indirectly supports the outer shell of the automated bolt sorting device by supporting the bolt head diameter sorting module.

[0005] Preferably, the bolt head diameter sorting module includes a blade actuator motor, an internal gear ring sorting blade, and a multi-diameter slot sorting screen; the blade actuator motor is fixedly connected to the transverse limiting main shaft, and the blade actuator motor transmits torque to the spur gear through key action, and the spur gear is connected to the internal gear ring sorting blade through inter-tooth meshing; the inclined baffle is fixedly connected to the blade actuator motor by fastening bolts; a gasket is provided between the inclined baffle and the fastening bolts to prevent the fastening bolts from loosening; the lower end of the multi-diameter slot sorting screen is uniformly provided with threaded holes and is fixedly connected to the outer shell of the bolt automated sorting device.

[0006] Preferably, the bolt diversion and conveying module includes a bolt small head diameter sorting ring, a bolt medium head diameter sorting ring, and a bolt large head diameter sorting ring. The upper ends of the bolt small head diameter sorting ring, the bolt medium head diameter sorting ring, and the bolt large head diameter sorting ring are uniformly provided with threaded holes and fixedly connected to a multi-diameter slot sorting screen. The bolt receiving and limiting boxes are formed into three groups and uniformly fixedly connected to the upper fixed plate surface. The bolt receiving and limiting boxes are used to receive bolts sorted out by the three different bolt head diameter sorting rings. The upper fixed plate surface is uniformly provided with threaded holes and fixedly connected to the upper fixed plate fixing port.

[0007] Preferably, the bolt spatial attitude control module includes a motor bracket, a central fixing plate, and a guide rail bracket; the motor brackets are arranged in three groups evenly around the upper surface of the central fixing plate, and are fixedly connected to the central fixing plate through threaded holes; the motor brackets are also fixedly connected to the rotary actuator motor; the rotary actuator motor is fixedly connected to the magnetic rotary wheel, and magnetic patches are attached to the gaps on the circumferential surface of the magnetic rotary wheel; the guide rail brackets are arranged in three groups evenly around the lower surface of the central fixing plate, and are fixedly connected to the central fixing plate through threaded holes; the guide rail brackets are also fixedly connected to the bolt position control guide rail through threaded holes.

[0008] Preferably, the bolt thread length sorting module includes a lateral limiting main shaft, a bolt positioning spur gear wheel, and a bolt positioning auxiliary wheel; the lateral limiting main shaft is fixedly connected to the bolt sorting machine base, the lateral limiting main shaft is movably connected to the bolt positioning auxiliary wheel, the bolt positioning auxiliary wheel is fixedly connected to the bolt positioning spur gear wheel by welding, the bottom of the bolt positioning spur gear wheel is movably connected to the bolt sorting machine base through a groove, the bolt sorting machine base is fixedly connected to the sorting tray through evenly distributed threaded holes, the sorting tray is fixedly connected to the bolt length sorting ring by welding, and the side of the sorting tray is marked with serial numbers to distinguish different types of bolts sorted out.

[0009] Preferably, the outer shell of the automated bolt sorting device is provided with a multi-diameter slot sorting screen fixing port and an upper fixing plate fixing port. The surface of the multi-diameter slot sorting screen fixing port is uniformly distributed with threaded holes and fixedly connected to the multi-diameter slot sorting screen. The upper fixing plate fixing port is fixedly connected to the upper fixing plate through the uniformly distributed threaded holes and is used to support the upper fixing plate. The middle fixing plate fixing port is fixedly connected to the middle fixing plate through the uniformly distributed threaded holes and is used to support the middle fixing plate. The transmission groove is provided on the side of the outer shell of the automated bolt sorting device and is used to connect to an external gear to transmit torque.

[0010] Preferably, the bottom of the transverse limiting spindle is fixedly connected to the base of the bolt sorting machine. The middle part of the transverse limiting spindle passes through the upper fixed plate, the middle fixed plate, and the bolt positioning auxiliary wheel and restricts its radial motion freedom. The transverse limiting spindle supports the multi-diameter slot sorting screen, thereby indirectly supporting the bolt head diameter sorting module, the bolt diversion and conveying module, and the bolt spatial posture control module.

[0011] Preferably, the transmission groove is directly opposite the straight tooth structure of the outer ring of the bolt-positioning spur gear. The transmission groove meshes with the straight tooth structure of the outer ring of the bolt-positioning spur gear through an external gear to transmit torque. After the torque is transmitted, the bolt-positioning spur gear can rotate around its center.

[0012] Preferably, the bolt length sorting ring is provided with three different lengths of striking rods: short, medium, and high. The striking rods are arranged in three groups of periodically evenly distributed in sequence. The center surface of the striking rod is aligned with the center surface of each sorting box cavity of the sorting tray. The sorting tray can sort out nine different types of bolts. The outlet of the bolt shape and position control guide rail is directly to the left of the center surface of the shortest striking rod on the bolt length sorting ring. The bolt clamping spur gear rotates counterclockwise to complete the sorting function.

[0013] The second aspect of this method provides a method for sorting bolts using the aforementioned geometric feature-based automated industrial batch bolt sorting device, comprising the following steps: Step 1, Centrifugal sorting of head diameter: The multi-diameter slot sorting screen is set with slots from small to large from the inside out. The blades are driven by the motor to rotate the internal gear ring sorting blades, so that the bolts move radially outward along the multi-diameter slot sorting screen under the action of centrifugal force, and are sorted in order according to the head diameter from small to large and flow to the next module. Step 2, Diversion and Conveying: The sorted bolts of different head diameters are conveyed in three directions to the bolt spatial attitude control module via the bolt diversion and conveying module; Step 3, Spatial attitude control: The magnetic wheel is powered on to attract the bolt. After the motor drives the magnetic wheel to rotate 180°, the power is cut off to release the bolt. The bolt is adjusted to a vertical position with its head facing upward by the bolt position control guide rail and is orderly inserted into the positioning groove of the bolt positioning straight tooth wheel. Step 4, thread length sorting: The bolt clamping spur gear drives the bolt to rotate counterclockwise. The bolts pass through the gradient impact rods on the bolt length sorting ring from short to long in sequence. Bolts with different thread lengths are pushed into the sorting tray by the corresponding impact rods, completing the combined sorting of head diameter and thread length.

[0014] The present invention has the following beneficial effects: 1. This invention integrates the bolt head diameter sorting module, bolt diversion and transportation module, bolt spatial posture control module and bolt thread length sorting module into a highly integrated whole. The bolt head diameter sorting module and bolt thread length sorting module are completed sequentially in the same device. This enables automated grading of large batches of bolts of various specifications in one go, avoiding multiple transfers and repeated screenings, and significantly improving the overall efficiency and classification accuracy of bolt sorting in industrial settings.

[0015] 2. This invention arranges multiple sets of variable-height striking rods circumferentially on the bolt length sorting ring, and drives the bolt clamping spur gear to rotate continuously with an external drive mechanism. This enables bolts with different head diameters to be sorted and classified by thread length simultaneously. There is no need to control the opening and closing of each collection station separately according to the time sequence. It can realize continuous feeding and synchronous sorting of bolts of multiple specifications, greatly shorten the overall sorting cycle, and improve the assembly and material turnover efficiency of the production line.

[0016] 3. This invention employs a spatial attitude control mechanism consisting of a magnetic roller, a roller actuator motor, and a bolt position control guide rail. This mechanism can uniformly regulate bolts in a disordered state into a standard posture with the head facing upwards and the screw downwards. This ensures that the bolts enter the positioning slots of the spur gear roller stably and accurately, fundamentally avoiding jamming, misalignment, and missed alignment. This significantly improves the bolt positioning success rate and the stability of the device operation, ensuring long-term continuous and reliable operation of the device.

[0017] 4. This invention optimizes the structure and lightweight design of each functional module and key component. While ensuring the overall structural strength, mechanical performance and operational rigidity, it effectively reduces the amount of consumables, equipment weight and manufacturing cost. At the same time, it reduces power consumption during operation, improves the energy efficiency and economy of the device, and is more suitable for long-term, continuous and large-scale use in industrial sites.

[0018] 5. This invention adopts a top-down modular coaxial layout with a transverse limiting spindle as the core support component. Each module is accurately positioned, evenly stressed, and runs smoothly. The overall structure is simple and easy to disassemble and assemble, facilitating daily maintenance, replacement of vulnerable parts, and specification adjustment. It can be adapted to bolt sorting scenarios in multiple fields such as mechanical manufacturing, automotive parts, electronic assembly, and hardware processing, significantly improving its versatility and practicality. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the module distribution of the present invention.

[0022] Figure 3 This is a schematic diagram of the bolt head diameter sorting module.

[0023] Figure 4 This is a structural schematic diagram of the bolt diversion and transportation module.

[0024] Figure 5 This is a schematic diagram of the bolt spatial attitude control module.

[0025] Figure 6 This is a schematic diagram of the bolt thread length sorting module.

[0026] Figure 7 This is a schematic diagram of the outer casing of an automated bolt sorting device.

[0027] Figure 8 This is a structural feature diagram of a bolt thread length sorting module.

[0028] In the diagram: 1. Bolt head diameter sorting module; 2. Bolt diversion and conveying module; 3. Bolt spatial posture control module; 4. Bolt thread length sorting module; 5. Automated bolt sorting device housing. Fastening bolt 1-1, gasket 1-2, inclined baffle 1-3, spur gear 1-4, blade actuator motor 1-5, internal gear ring sorting blade 1-6, multi-diameter slot sorting screen 1-7; Bolt small head diameter sorting ring 2-1, bolt medium head diameter sorting ring 2-2, bolt large head diameter sorting ring 2-3, bolt receiving limit box 2-4, upper fixing plate 2-5; Magnetic adhesive patch 3-1, magnetic roller 3-2, roller actuator motor 3-3, motor bracket 3-4, central fixing plate 3-5, guide rail bracket 3-6, bolt position adjustment guide rail 3-7; 4-1 Lateral limiting main shaft, 4-2 Bolt clamping spur gear wheel, 4-3 Bolt clamping auxiliary wheel, 4-4 Bolt length sorting ring, 4-5 Sorting tray, 4-6 Bolt sorting machine base; The multi-diameter slot sorting screen has fixed ports 5-1, 5-2 (upper fixed plate), 5-3 (middle fixed plate), and 5-4 (transmission groove). Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. This example is implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0030] Example 1: like Figure 1-2 As shown, an automated industrial batch bolt sorting device based on geometric features, to achieve multi-module coaxial integration and overall stable support, includes a bolt head diameter sorting module 1. The bolt head diameter sorting module 1 has evenly distributed threaded holes at its lower part and is fixedly connected to the outer shell 5 of the automated bolt sorting device. The outer shell 5 is fixedly connected to a bolt diversion and conveying module 2 via an upper fixing plate fixing port 5-2 located inside it. The outer shell 5 is also fixedly connected to a bolt spatial posture control module 3 via a middle fixing plate fixing port 5-3 located inside it. A transverse limiting spindle 4-1 is located in the middle of the bolt thread length sorting module 4-1. The upper end of the transverse limiting spindle 4-1 has threaded holes and is fixedly connected to the bolt head diameter sorting module 1. The transverse limiting spindle 4-1 indirectly supports the outer shell 5 of the automated bolt sorting device by supporting the bolt head diameter sorting module 1. This structure adopts a combination of central spindle support and outer shell positioning, resulting in high positioning accuracy and uniform force distribution, ensuring that the entire machine operates without shaking or deformation over long periods.

[0031] Furthermore, such as Figure 3As shown, to achieve centrifugal sorting by head diameter, the bolt head diameter sorting module 1 includes a blade actuator motor 1-5, an internal gear ring sorting blade 1-6, and a multi-diameter slot sorting screen 1-7. The blade actuator motor 1-5 is fixedly connected to the transverse limiting main shaft 4-1. The blade actuator motor 1-5 transmits torque to the spur gear 1-4 via a key. The spur gear 1-4 is connected to the internal gear ring sorting blade 1-6 through inter-tooth meshing. The internal gear ring sorting blade 1-6 can drive the bolt to rotate and generate centrifugal force. The bolt gradually moves towards the outer ring under the action of centrifugal force, and completes the head diameter sorting by passing through sorting slots of different diameters. The inclined baffle 1-3 is fixedly connected to the blade actuator motor 1-5 by a fastening bolt 1-1. A gasket 1-2 is provided between the inclined baffle 1-3 and the fastening bolt 1-1 to prevent the fastening bolt 1-1 from loosening. The multi-diameter slot sorting screen 1-7 has threaded holes evenly provided at its lower end and is fixedly connected to the outer shell 5 of the bolt automated sorting device. During operation, the motor drives the blades to rotate, generating centrifugal force. The bolts pass through the corresponding diameter slots from the inside to the outside, realizing automatic classification of small, medium and large head bolts. The inclined baffle can prevent bolts from splashing. The structure is simple and the sorting is continuous and reliable.

[0032] Furthermore, such as Figure 4 As shown, to stably transport bolts of different diameters separately, the bolt diversion and conveying module 2 includes a bolt small head diameter sorting ring 2-1, a bolt medium head diameter sorting ring 2-2, and a bolt large head diameter sorting ring 2-3. The upper ends of the bolt small head diameter sorting ring 2-1, bolt medium head diameter sorting ring 2-2, and bolt large head diameter sorting ring 2-3 are uniformly provided with threaded holes and are fixedly connected to the multi-diameter slotted sorting screen 1-7. Three groups of bolt receiving and limiting boxes 2-4 are uniformly fixedly connected to the upper surface of the upper fixing plate 2-5. The bolt receiving and limiting boxes 2-4 are used to receive bolts sorted by the three different bolt head diameter sorting rings 2-1, 2-2, and 2-3. The surface of the upper fixing plate 2-5 is uniformly provided with threaded holes and is fixedly connected to the upper fixing plate fixing port 5-2. The upper fixing plate 2-5 provides fixed support for the bolt receiving and limiting boxes 2-4. The three sorting rings correspond one-to-one with the receiving boxes, which can independently guide and transport bolts of different diameters, avoiding material mixing and jamming, and ensuring that the bolts flow to the attitude control module in an orderly and stable manner.

[0033] Furthermore, such as Figure 5As shown, to regulate disordered bolts into a uniform vertical posture, the bolt spatial posture control module 3 includes a motor bracket 3-4, a central fixing plate 3-5, and a guide rail bracket 3-6. The motor brackets 3-4 are arranged in three evenly spaced rings on the upper surface of the central fixing plate 3-5, and are fixedly connected to the central fixing plate 3-5 through threaded holes. The motor brackets 3-4 are fixedly connected to the rotary actuator motor 3-3, and the rotary actuator motor 3-3 is fixedly connected to the magnetic roller 3-2. The magnetic roller 3-2 is circular. Magnetic adhesive patches 3-1 are affixed to the gaps on the peripheral surface; the guide rail brackets 3-6 are arranged in three groups evenly around the lower surface of the central fixing plate 3-5. The guide rail brackets 3-6 are fixedly connected to the central fixing plate 3-5 through threaded holes, and the guide rail brackets 3-6 are fixedly connected to the bolt position adjustment guide rail 3-7 through threaded holes. The bolt position adjustment guide rail 3-7 can make the bolt head lock on the guide rail, and the bolt thread segment lock between the two gaps of the guide rail, so that the bolt is kept in a vertical position and enters the locking groove of the bolt locking spur gear 4-2. During operation, the magnetic roller is energized to attract material and rotates 180° to release material when the power is turned off. The bolt is constrained by the guide rail and is in an upward posture, accurately falling into the locking groove, thus avoiding misseating and jamming caused by posture disorder from the root.

[0034] Furthermore, such as Figure 6 As shown, to achieve gradient sorting and categorized storage based on thread length, the bolt thread length sorting module 4 includes a lateral limiting main shaft 4-1, a bolt clamping spur gear wheel 4-2, and a bolt clamping auxiliary wheel 4-3. The lateral limiting main shaft 4-1 is fixedly connected to the bolt sorting machine base 4-6, and the lateral limiting main shaft 4-1 is movably connected to the bolt clamping auxiliary wheel 4-3. The bolt clamping auxiliary wheel 4-3 is fixedly connected to the bolt clamping spur gear wheel 4-2 by welding. The bottom of the bolt clamping spur gear wheel 4-2... The bolt sorting machine base 4-6 is movably connected to the bolt sorting machine base 4-6 via a snap-fit ​​joint. The bolt sorting machine base 4-6 is fixedly connected to the sorting tray 4-5 via evenly distributed threaded holes. The sorting tray 4-5 is fixedly connected to the bolt length sorting ring 4-4 ​​by welding. The side of the sorting tray 4-5 is marked with serial numbers to distinguish different types of bolts after sorting. The bolts finally pass through the striking rods of different lengths on the bolt length sorting ring 4-4, and the striking rods push the bolts into the corresponding sorting areas on the sorting tray 4-5, realizing the sorting and collection function. The positioning wheel drives the bolts to rotate, and bolts of different lengths are pushed into the corresponding storage areas by the corresponding striking rods. The sorting is clear and there is no mixing of materials. The serial number markings facilitate quick identification of specifications.

[0035] Furthermore, such as Figure 7As shown, to ensure reliable fixation of each module and access to external power, the outer shell 5 of the automated bolt sorting device is equipped with a multi-diameter slotted sorting screen fixing port 5-1 and an upper fixing plate fixing port 5-2. The multi-diameter slotted sorting screen fixing port 5-1 has evenly distributed threaded holes on its surface, which are fixedly connected to the multi-diameter slotted sorting screen 1-7. The upper fixing plate fixing port 5-2 is fixedly connected to the upper fixing plate 2-5 through evenly distributed threaded holes, serving to support the upper fixing plate 2-5. The middle fixing plate fixing port 5-3 is fixedly connected to the middle fixing plate 3-5 through evenly distributed threaded holes, serving to support the middle fixing plate 3-5. A transmission groove 5-4 is located on the side of the outer shell 5 of the automated bolt sorting device. The transmission groove 5-4 is used to connect an external gear to transmit torque. The external gear directly meshes with the bolt clamping spur gear 4-2 to form a transmission ratio, achieving the functions of speed reduction and increased transmission torque. The outer shell adopts multi-stage port positioning, resulting in high assembly accuracy and convenient disassembly and assembly. The precise position of the transmission groove allows for stable power input, ensuring stable rotational speed of the gear.

[0036] Furthermore, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, to ensure reliable support of the core main shaft and prevent radial movement of each component, the bottom of the transverse limiting main shaft 4-1 is fixedly connected to the bolt sorting machine base 4-6. The middle part of the transverse limiting main shaft 4-1 passes through the upper fixed plate 2-5, the middle fixed plate 3-5, and the bolt positioning auxiliary wheel 4-3, restricting its radial movement freedom. The transverse limiting main shaft 4-1 supports the multi-diameter slotted sorting screen 1-7, thereby supporting the bolt head diameter sorting module 1, the bolt diversion and conveying module 2, and the bolt spatial posture control module 3. The main shaft passes through the upper and lower modules to form an overall rigid support, effectively limiting radial sway and improving the overall machine's operational stability and sorting accuracy.

[0037] Furthermore, such as Figure 6 , Figure 7 As shown, to achieve efficient transmission of external power and drive the rotating wheel for sorting, the height of the transmission groove 5-4 is the same as the height of the outer ring spur gear structure of the bolt-positioning spur gear wheel 4-2. The transmission groove 5-4 meshes with the outer ring spur gear structure of the bolt-positioning spur gear wheel 4-2 through an external gear to transmit torque. After receiving the transmitted torque, the bolt-positioning spur gear wheel 4-2 can rotate around its center. The rotation of the bolt-positioning spur gear wheel 4-2 drives the bolts through striking rods of different lengths, realizing the sorting function. The gear meshing transmission has high efficiency and smooth operation. Continuous length sorting is completed during the rotation of the wheel without intermittent stops, improving the overall sorting efficiency.

[0038] Furthermore, such as Figure 5 , Figure 6As shown, to achieve precise sorting of bolts of three lengths and nine specifications under the same diameter, the bolt length sorting ring 4-4 ​​is equipped with striking rods of short, medium, and high lengths. These striking rods are arranged in three groups of periodically evenly in sequence, with the center plane of each striking rod aligned with the center plane of each sorting box cavity on the sorting tray 4-5. The sorting tray 4-5 can sort and store nine different types of bolts. The outlet of the bolt position control guide rail 3-7 is directly opposite to the left of the center plane of the shortest striking rod on the bolt length sorting ring 4-4. The bolt clamping spur gear 4-2 completes the sorting function by rotating counterclockwise. The three groups of gradient striking rods are evenly distributed circumferentially, with bolts of the same diameter corresponding to the same group of striking rods, without interference. This allows for the simultaneous sorting of nine bolts of three diameters and three lengths, adapting to the needs of industrial batch multi-specification sorting.

[0039] The specific working principle of this invention is as follows: This invention is based on the dual geometric features of bolt head diameter and thread length, and adopts a composite principle of centrifugal grading and sorting, magnetic attraction posture regularization, and gradient impact sorting to achieve automated sorting of industrial batch bolts.

[0040] Head diameter sorting principle: Centrifugal force is used to move the bolt radially outwards, in conjunction with a multi-diameter slot sorting screen. The grooves on the 7th section gradually increase in size, allowing for graded separation of bolts with different head diameters.

[0041] Attitude control principle: via magnetic roller 3 2. The device features energized adsorption and 180° rotation followed by de-energized release, combined with bolt-position control guide rail 3. The constraint guide of 7 unifies the disordered bolts into a vertical posture with the head facing up and the screw facing down, ensuring that the bolts accurately enter the locking groove.

[0042] Thread length sorting principle: Utilizing bolt-positioned spur gear 4 2. This causes the bolt to rotate counterclockwise, allowing screws of different lengths to sequentially interact with the bolt length sorting ring 4. 4. The short, medium, and high gradient striking rods make contact, and bolts that are not long enough are pushed into the sorting disc by the corresponding striking rod. 5. Achieve precise sorting of different thread lengths under the same head diameter.

[0043] Overall support and transmission principle: using the lateral limiting spindle 4 1 serves as the central support component, ensuring the coaxial stability of all modules; the external gear is transmitted through the transmission groove 5. 4. It meshes with the positioning wheel for transmission, realizing power input and rotation control.

[0044] Example 2: The above-mentioned automated sorting device for industrial batch bolts based on geometric features achieves the function of automatic bolt sorting based on geometric features, including the following steps: like Figure 8 The diagram shows the structural features of the bolt thread length sorting module, where the dashed circle represents the bolt clamping spur gear 4. 2. Solid circle represents bolt length sorting circle 4 4. Bolts are adjusted via bolt position guide rail 3 7. Arranged in groups of three according to head diameter on the bolt-locking spur gear 4 2.

[0045] Bolts enter the bolt locking spur gear 4 in an orderly manner Detailed description of the upper bolt slot: like Figure 8 The image shows a bolt-locking spur gear 4. 2. Bolt length sorting ring 4 4. Bolt position adjustment guide rail 3 Top view of 7, showing the bolt-positioning spur gear 4. 2. Multiple bolt-positioning grooves are distributed on the surface, and the bolt-positioning spur gear 4 2. Rotates counterclockwise under the drive of an external gear; the bolt-locking spur gear 4 2. Rotate counterclockwise until the next bolt slot is located on the bolt position adjustment guide rail. 3. 7 stops rotating directly below, then the magnetic wheel 3... 2. Demagnetize and release one bolt; the released bolt passes through the bolt position adjustment guide rail. 3. 7. Conveyor into bolt clamping spur gear 4 2. Insert the bolt into the bolt slot; repeat the above steps to feed the bolts into the bolt slot spur gear 4 in an orderly manner. 2. Bolt slot.

[0046] Bolts are secured by spur gear 4. 2. Bolt length sorting ring 4 4 and Classification Plate 4 5. Detailed explanation of how the thread length sorting function is achieved together: like Figure 8 As shown, the bolt length sorting ring 4 4. Capable of sorting bolts with three different thread lengths, wherein the bolt length sorting ring 4 The device 4 has nine striking rods, which are divided into three groups according to three different lengths. The three different lengths of striking rods are arranged in a circle at a certain angle from low to high in a counterclockwise direction to form a group. Each group of striking rods is evenly arranged around the circumference according to a periodic pattern.

[0047] The bolt spatial attitude control module 3 is uniformly provided with three sets of bolt shape and position control guide rails 3 7. The bolt position adjustment guide rail 3 7. The outlet is located directly above the high strike bar and the low strike bar; the bolt is controlled by bolt position adjustment guide 3. 7. Convey and engage bolt-positioning spur gear 4 2. Inside the bolt locking groove, the spur gear 4 moves with the bolt locking mechanism. 2. The bolts rotate counterclockwise, passing sequentially through the impact bars from low to high to complete the screening. Bolts with the same head diameter but different thread lengths enter the same group of impact bar areas. Bolts sorted in the same group will not enter other groups. Finally, the bolts are screened and enter the sorting tray 4. 5. Complete the classification.

[0048] The bolt sorting device achieves the sorting of bolts with different geometric features, specifically including the following steps: Step 1: Multi-diameter slotted sorting screen 1 7. Grading slots of increasing diameter are opened from the inside out at different locations, and the blades are driven by motor 1. 5 Driven internal gear ring sorting blades 1 6. Rotation causes the bolts to generate centrifugal force; under the action of centrifugal force, the bolts move along the multi-diameter slot sorting screen 1 7. The surface moves outward and passes through slots of increasing size in sequence. Bolts with small head diameters are sorted first, while bolts with large head diameters are sorted last and flow into the next module.

[0049] Step 2: After the bolts are sorted by bolt head diameter sorting module 1, they enter bolt diversion and transportation module 2 according to three different head diameters; bolt diversion and transportation module 2 transports bolts of different head diameters to bolt spatial attitude control module 3 in three separate ways.

[0050] Bolt spatial attitude control module 3 is equipped with three magnetic rollers 3 2. Each magnetic wheel 3 2 is located directly below the bolt outlet of the bolt diversion and conveying module 2; magnetic roller 3 2. The electrically activated suction bolt is driven by the rotating wheel motor. 3. 3. After the drive rotates 180°, the power is cut off to release the bolt, allowing it to fall laterally into the bolt position adjustment guide rail. 7; Bolts are positioned via bolt shape and position adjustment guide rail 3 7. Constraints are applied, and the device is conveyed in a vertical position with its head facing upwards. Finally, the head engages with the bolt-locking spur gear 4. In the bolt slot of 2.

[0051] Step 3: Bolts are positioned via three sets of bolt position adjustment guides. 7. Conveyed to bolt clamping spur gear 4 At time 2, the landing point of each group of bolts is controlled by the bolt position adjustment guide rail 3. The outlet orientation control of 7, with the landing point of each group of bolts corresponding to the bolt length sorting ring 4. 4. The left side of the center plane of the shortest batting bar in each of the three batting bars.

[0052] Step 4: Then, bolt the spur gear 4 into place. 2. Driven by an external mechanism, the bolts rotate counterclockwise, and bolts of different thread lengths pass sequentially through a striking bar from shortest to longest to complete length sorting; the sorted bolts then enter a classification tray. 4. 5. Complete the combined sorting of bolt head diameter and thread length.

[0053] Although the present invention has been described in detail through the foregoing embodiments, those skilled in the art can make changes and modifications to the implementation methods without departing from the core spirit of the invention. All such changes and modifications fall within the scope of protection defined by the appended claims.

Claims

1. An automated sorting device for industrial batch bolts based on geometric features, characterized in that: The device includes a bolt head diameter sorting module (1), which has threaded holes evenly arranged below it and is fixedly connected to the outer shell (5) of the bolt automated sorting device; the outer shell (5) of the bolt automated sorting device is fixedly connected to the bolt diversion and conveying module (2) through an upper fixed plate fixed port (5-2) provided inside it; the outer shell (5) of the bolt automated sorting device is fixedly connected to the bolt spatial posture control module (3) through a middle fixed plate fixed port (5-3) provided inside it; the bolt thread length sorting module (4) has a transverse limiting spindle (4-1) in the middle, and the upper end of the transverse limiting spindle (4-1) has threaded holes and is fixedly connected to the bolt head diameter sorting module (1). The transverse limiting spindle (4-1) indirectly supports the outer shell (5) of the bolt automated sorting device by supporting the bolt head diameter sorting module (1).

2. The automated sorting device for industrial batch bolts based on geometric features according to claim 1, characterized in that: The bolt head diameter sorting module (1) includes a blade actuator motor (1-5), an internal gear ring sorting blade (1-6), and a multi-diameter slot sorting screen (1-7). The blade actuator motor (1-5) is fixedly connected to the transverse limiting main shaft (4-1). The blade actuator motor (1-5) transmits torque to the spur gear (1-4) through a key action. The spur gear (1-4) is connected to the internal gear ring sorting blade (1-6) through inter-tooth meshing. The inclined baffle (1-3) is fixedly connected to the blade actuator motor (1-5) through a fastening bolt (1-1). A gasket (1-2) is provided between the inclined baffle (1-3) and the fastening bolt (1-1) to prevent the fastening bolt (1-1) from loosening. The lower end of the multi-diameter slot sorting screen (1-7) is uniformly provided with threaded holes and is fixedly connected to the outer shell (5) of the bolt automatic sorting device.

3. The automated sorting device for industrial batch bolts based on geometric features according to claim 2, characterized in that: The bolt diversion and conveying module (2) includes a bolt small head diameter sorting ring (2-1), a bolt medium head diameter sorting ring (2-2), and a bolt large head diameter sorting ring (2-3). The bolt small head diameter sorting ring (2-1), bolt medium head diameter sorting ring (2-2), and bolt large head diameter sorting ring (2-3) are uniformly provided with threaded holes at their upper ends and are fixedly connected to a multi-diameter slot sorting screen (1-7). The bolt receiving limit box (2-4) is formed into three groups and is uniformly fixedly connected to the upper surface of the upper fixing plate (2-5). The bolt receiving limit box (2-4) is used to receive bolts sorted by the three different specifications of bolt head diameter sorting rings (2-1, 2-2, 2-3). The upper fixing plate (2-5) is uniformly provided with threaded holes on its surface and is fixedly connected to the upper fixing plate fixing port (5-2).

4. The automated sorting device for industrial batch bolts based on geometric features according to claim 3, characterized in that: The bolt spatial attitude control module (3) includes a motor bracket (3-4), a central fixing plate (3-5), and a guide rail bracket (3-6). The motor bracket (3-4) is arranged in three groups evenly around the upper surface of the central fixing plate (3-5). The motor bracket (3-4) is fixedly connected to the central fixing plate (3-5) through threaded holes. The motor bracket (3-4) is fixedly connected to the rotary actuator motor (3-3). The rotary actuator motor (3-3) is fixedly connected to the magnetic roller (3-2). The magnetic roller (3-2) has magnetic patches (3-1) attached to the gaps on its circumferential surface. The guide rail bracket (3-6) is arranged in three groups evenly around the lower surface of the central fixing plate (3-5). The guide rail bracket (3-6) is fixedly connected to the central fixing plate (3-5) through threaded holes. The guide rail bracket (3-6) is fixedly connected to the bolt position control guide rail (3-7) through threaded holes.

5. The automated sorting device for industrial batch bolts based on geometric features according to claim 4, characterized in that: The bolt thread length sorting module (4) includes a transverse limiting main shaft (4-1), a bolt clamping spur gear wheel (4-2), and a bolt clamping auxiliary wheel (4-3). The transverse limiting main shaft (4-1) is fixedly connected to the bolt sorting machine base (4-6), and the transverse limiting main shaft (4-1) is movably connected to the bolt clamping auxiliary wheel (4-3). The bolt clamping auxiliary wheel (4-3) is fixedly connected to the bolt clamping spur gear wheel (4-2) by welding. The bottom of the bolt clamping spur gear wheel (4-2) is movably connected to the bolt sorting machine base (4-6) through a slot. The bolt sorting machine base (4-6) is fixedly connected to the sorting disc (4-5) through evenly distributed threaded holes. The sorting disc (4-5) is fixedly connected to the bolt length sorting ring (4-4) by welding. The side of the sorting disc (4-5) is marked with serial numbers to distinguish different types of bolts sorted out.

6. The automated sorting device for industrial batch bolts based on geometric features according to claim 5, characterized in that: The outer shell (5) of the bolt automated sorting device is provided with a multi-diameter slot sorting screen fixing port (5-1) and an upper fixing plate fixing port (5-2). The multi-diameter slot sorting screen fixing port (5-1) has evenly distributed threaded holes on its surface and is fixedly connected to the multi-diameter slot sorting screen (1-7). The upper fixing plate fixing port (5-2) is fixedly connected to the upper fixing plate (2-5) through evenly distributed threaded holes and is used to support the upper fixing plate (2-5). The middle fixing plate fixing port (5-3) is fixedly connected to the middle fixing plate (3-5) through evenly distributed threaded holes and is used to support the middle fixing plate (3-5). The transmission groove (5-4) is provided on the side of the outer shell (5) of the bolt automated sorting device. The transmission groove (5-4) is used to connect to an external gear to transmit torque.

7. The automated sorting device for industrial batch bolts based on geometric features according to claim 5, characterized in that: The bottom of the transverse limiting spindle (4-1) is fixedly connected to the base (4-6) of the bolt sorting machine. The middle part of the transverse limiting spindle (4-1) passes through the upper fixed plate (2-5), the middle fixed plate (3-5), and the bolt positioning auxiliary wheel (4-3) and restricts its radial motion freedom. The transverse limiting spindle (4-1) supports the multi-diameter slot sorting screen (1-7) and indirectly supports the bolt head diameter sorting module (1), the bolt diversion and conveying module (2), and the bolt spatial posture control module (3).

8. The automated sorting device for industrial batch bolts based on geometric features according to claim 5, characterized in that: The transmission groove (5-4) is directly opposite the straight tooth structure of the outer ring of the bolt clamping spur gear (4-2). The transmission groove (5-4) meshes with the straight tooth structure of the outer ring of the bolt clamping spur gear (4-2) through an external gear to transmit torque. After the torque is transmitted, the bolt clamping spur gear (4-2) can rotate around its center.

9. The automated sorting device for industrial batch bolts based on geometric features according to claim 5, characterized in that: The bolt length sorting ring (4-4) is equipped with three different lengths of striking rods: short, medium, and high. The striking rods are arranged in three groups of periodically evenly distributed in sequence. The center surface of the striking rod is aligned with the center surface of each sorting box cavity of the sorting tray (4-5). The sorting tray (4-5) can sort out nine different types of bolts. The outlet of the bolt shape and position control guide rail (3-7) is directly to the left of the center surface of the shortest striking rod on the bolt length sorting ring (4-4). The bolt clamping spur gear (4-2) completes the sorting function by rotating counterclockwise.

10. A method for sorting bolts using an automated industrial batch bolt sorting device based on geometric features as described in any one of claims 6-9, characterized in that, Includes the following steps: Step 1, Centrifugal sorting by head diameter: Multi-diameter slotted sorting screen (1 7) The slots are arranged from small to large from the inside out, and the blades are driven by motors (1 5) Drive the internal gear ring sorting blades (1 6) Rotate, causing the bolts to move along the multi-diameter slot sorting screen (1) under centrifugal force. 7) Move radially outwards, sorting in order of increasing head diameter and flowing to the next module; Step 2, Diversion and Conveying: The sorted bolts with different head diameters are transported in three directions to the bolt spatial attitude control module (3) via the bolt diversion and conveying module (2). Step 3: Spatial Attitude Control: Magnetic Wheel (3 2) The energized suction bolt and the rotating actuating motor (3) 3) Drive the magnetic roller (3 2) After rotating 180°, the power is cut off to release the bolt. The bolt then passes through the bolt position adjustment guide rail (3) 7) Adjust to a vertical position with the head facing upwards, and orderly insert the bolt-locking spur gear (4) 2) Inside the card slot; Step 4, Thread Length Sorting: Bolt Positioning Spur Gear (4 2) The bolts rotate counterclockwise, passing sequentially through the bolt length sorting ring (4). 4) The upper gradient striking rods, from short to long, push bolts of different thread lengths into the sorting disc by the corresponding striking rods (4) 5) Complete the combined sorting of head diameter and thread length.

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