Flange nut disassembling and recycling integrated device

Abstract

The invention discloses a flange nut disassembling and recycling integrated device which comprises a rack, an electric screwdriver, a sleeve, an electromagnetic coil and a collecting assembly. An electric screwdriver installation position is arranged in the rack, an electric screwdriver is fixedly installed in the electric screwdriver installation position, the output end of the electric screwdriver is connected with the top of the sleeve in a clamped mode, and a groove matched with a flange nut is formed in the bottom of the sleeve; an electromagnetic coil installation position is arranged in the rack, the electromagnetic coil is installed in the electromagnetic coil installation position, the electromagnetic coil is an annular coil, the inner diameter of the electromagnetic coil is larger than the outer diameter of the sleeve, the electromagnetic coil is arranged on the outer side of the sleeve in a sleeving mode, and the electromagnetic coil and the sleeve do not make contact with each other; the collecting assembly comprises a collecting box, when the collecting assembly is folded, the collecting box is located on the side of the sleeve, and when the collecting assembly is unfolded, the collecting box moves to the position below the sleeve. According to the device, the electromagnetic coil surrounding the outside, the magnetic conductive sleeve and the collecting box translating laterally are creatively combined, and the problem that the flange nut with the hole is difficult to recycle in a narrow space is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automatic disassembly and recycling equipment, and particularly relates to a flange nut disassembly and recycling integrated device installed on a robot end or other automatic equipment platform. BACKGROUND

[0002] With the rapid development of new energy vehicles, power equipment and complex electromechanical equipment, a large number of bolts / nuts are arranged in deep holes, cavities or side closed spaces in equipment maintenance, scrap disassembly and recycling operations. Figure 1 Among the bolts / nuts, flange nuts are representative, and such fasteners generally have a large flange, a central through hole and high assembly strength. Figure 2 This puts very high requirements on the space size, alignment capability and recycling method of the disassembly tool. In the automatic disassembly scene, the following core challenges are faced:

[0003] 1. Space limitation: the radial size of the disassembly tool must be smaller than the diameter of the flange to extend into the narrow space to contact the nut.

[0004] 2. Fastener recycling: the loosened nut must be reliably taken out of the narrow space and collected to prevent it from falling inside the workpiece and causing short circuit, jamming or secondary disassembly risk.

[0005] 3. Positioning tolerance: the robot has limited absolute positioning accuracy, and the implement needs to have certain floating compensation capability to adaptively align the nut and protect the workpiece and tool.

[0006] 4. Efficiency and versatility: it needs to adapt to nuts of different specifications and quickly replace the tool head while realizing the full-process automation of loosening, grabbing and releasing to avoid manual intervention.

[0007] At present, although there are various automatic nut disassembly devices or end effectors, they all have different degrees of functional deficiencies or structural incompatibility problems when dealing with the above-mentioned narrow space disassembly tasks.

[0008] In the prior art, in order to solve similar problems, technicians have proposed various schemes, for example:

[0009] Patent documents CN202121441425, CN200920031773 and CN201720520584 have active magnetic disassembly tools: by setting electromagnetic coils outside or inside the sleeve, the sleeve or tool bit is magnetized to attract ferromagnetic nuts or bolts for removal, and then AC decay current or power-off active demagnetization is used to realize active separation of the nut.

[0010] Patent documents CN202411581774 and CN202211416197 describe a disassembly mechanism with floating compensation: by using elastic elements such as springs, the bit or sleeve has a certain floating displacement in the axial and radial directions to compensate for positioning errors.

[0011] Disassembly devices with integrated recycling functions: These devices use vacuum nozzles (such as CN202421788210), mechanical grippers (such as CN202411383124), or temporary storage within a sleeve cavity (such as CN202311357410) to attempt to recycle the disassembled fasteners.

[0012] Although the aforementioned existing technologies each have their own characteristics, they all reveal significant drawbacks when applied to the disassembly and recycling of flange nuts in confined spaces.

[0013] 1. The recycling function is malfunctioning or unreliable:

[0014] Vacuum adsorption (e.g., CN202410033085, CN202421788210): For flange nuts with a central through hole, the vacuum suction will leak from the central hole, failing to form an effective negative pressure, leading to adsorption failure. Furthermore, the outer diameter of the air duct is usually large, making it difficult to penetrate narrow spaces.

[0015] Accumulation within the sleeve cavity (e.g., CN202311357410): When the flange diameter of the flange nut is larger than that of the hexagonal rod, the flange of the first nut to be removed will get stuck on the end face of the sleeve, preventing it from entering the recovery chamber and causing recovery failure.

[0016] External mechanical gripping (such as CN202411383124, CN201820391937): The structure is complex, requiring additional unfolding, gripping and retraction actions. It cannot be unfolded in narrow spaces, and the process is cumbersome and inefficient.

[0017] 2. Insufficient integration of demagnetization scheme with structure:

[0018] The AC demagnetization solution (such as CN202121441425) uses an "electromagnetic sleeve" that includes a cylinder, positioning bearing, bushing, insulating bushing, and complex mounting brackets (such as latches and multi-section supports). This results in a bulky overall structure with numerous parts. The electromagnetic coil is fixed inside the enclosed cylinder, which hinders heat dissipation. The "electromagnetic sleeve" uses bearings and other structures to engage with the screwdriver's "tip" for positioning. To adapt to different nut sizes, not only the "tip" needs to be replaced, but the entire "electromagnetic sleeve" accessory may also need adjustment or adaptation, making the operation cumbersome and unable to achieve quick and low-cost replacement of different "tip" sizes. Furthermore, the magnetization solution relies on DC power, while the demagnetization solution relies on a power controller that includes AC power, requiring two power supplies.

[0019] The scheme of placing the electromagnet inside the sleeve (such as CN200920031773) increases the complexity and cost of the sleeve.

[0020] 3. Lack of floating and quick-switch functions or complex structure:

[0021] Some floating solutions (such as CN202411581774) are implemented as independent modules, requiring additional connectors and space, which increases the overall size, weight and number of parts of the end effector. The waist hole-pin-spring structure it adopts has a single purpose (axial floating only) and is not integrated with other functions such as tool quick change.

[0022] The existing solution does not integrate and simplify the design of key functions such as axial floating, radial / angular floating, damping buffer, and quick sleeve change.

[0023] 4. Poor spatial adaptability:

[0024] Many solutions (such as CN202310381045) have fasteners that cannot be automatically detached after disassembly, or lack effective recycling methods (such as CN202421900771), making them unsuitable for operation in confined spaces. Summary of the Invention

[0025] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated device for disassembling and recycling flange nuts, so as to solve the problem of recycling flange nuts with holes in narrow spaces.

[0026] To achieve the above objectives, the technical solution of the present invention is as follows:

[0027] An integrated device for dismantling and recycling flange nuts includes a frame, an electric screwdriver, a sleeve, an electromagnetic coil, and a collection assembly;

[0028] An electric screwdriver mounting position is provided in the frame, the electric screwdriver is fixedly installed in the electric screwdriver mounting position, the output end of the electric screwdriver is engaged with the top of the sleeve, and the bottom of the sleeve is a groove that matches the flange nut;

[0029] An electromagnetic coil mounting position is provided in the frame, and the electromagnetic coil is installed in the electromagnetic coil mounting position. The electromagnetic coil is a ring coil with an inner diameter larger than the outer diameter of the sleeve, so that it is sleeved on the outside of the sleeve without the two coming into contact.

[0030] The collection assembly includes a collection box, which is located to the side of the sleeve when retracted and moves to the bottom of the sleeve when extended.

[0031] Optionally, the electromagnetic coil is connected to an external power supply control module and a DC power supply;

[0032] As the sleeve loosens the nut, the power control module supplies positive DC current to the electromagnetic coil to attract the loosened flange nut into the groove at the bottom of the sleeve.

[0033] When it is necessary to release the attracted flange nut, the power control module supplies a bipolar waveform with attenuated amplitude to the electromagnetic coil to actively demagnetize the sleeve, causing it to lose its attraction to the nut.

[0034] Optionally, the output end of the electric screwdriver is a protrusion, a spring pin is installed on the radial end face of the protrusion, and a compression spring is installed on the axial end face of the protrusion.

[0035] The sleeve is a slender cylinder with a groove at its top that mates with the protrusion of the electric screwdriver, and a waist hole on the side of the groove. When the electric screwdriver and the sleeve are assembled, the spring pin on the electric screwdriver is engaged in the waist hole of the sleeve. The axial end face compression spring of the electric screwdriver is compressed at the bottom of the groove of the sleeve and the end face of the electric screwdriver.

[0036] Optionally, the spring pin has two protrusions, an upper protrusion and a lower protrusion.

[0037] Optionally, the length direction of the waist hole is consistent with the axial direction of the sleeve, so that the sleeve can move axially within a certain range.

[0038] Optionally, the inner dimension of the groove at the top of the sleeve is larger than the outer dimension of the protrusion at the output end of the electric screwdriver.

[0039] Optionally, the depth of the groove at the top of the sleeve is greater than the height of the protrusion at the output end of the electric screwdriver.

[0040] Optionally, the protrusion at the output end of the electric screwdriver is a square protrusion, and the groove at the top of the sleeve is a square groove.

[0041] Optionally, the collection assembly further includes a parallelogram link, the frame link of which is fixed to the frame, and the collection box is fixed to the movable end of the parallelogram link.

[0042] Optionally, the collection box has an opening at the top and a rotatable cover at the bottom.

[0043] Compared with the prior art, the advantages of this invention are as follows:

[0044] 1. An integrated recycling solution combining magnetic adsorption, active demagnetization, and lateral collection: This innovative solution integrates an externally surrounding electromagnetic coil, a magnetically conductive sleeve, and a laterally shifting collection box. Magnetic force overcomes the limitations of mechanical gripping in confined spaces, reliably capturing the nut. Active demagnetization enables instantaneous and reliable release. The DC pulse active demagnetization method, compared to traditional AC attenuation demagnetization, uses a bipolar waveform with attenuated amplitude, eliminating the need for an additional AC power supply and requiring only a DC power source. Lateral collection avoids interference with the working path. This solution perfectly solves the challenge of recycling perforated flange nuts in confined spaces.

[0045] 2. Highly integrated multi-functional quick-change floating sleeve structure: The quick-change interface (square protrusion / groove + spring pin + waist hole), multi-directional floating mechanism (plane and axial clearance), and floating damping (compression spring) are seamlessly integrated into the basic connection component of "electric screwdriver output end - sleeve".

[0046] Quick-change: The spring pin and the waist hole work together to achieve one-click axial installation and removal.

[0047] Floating: By utilizing the inherent fit clearances in machining, the radial, angular, and axial floating spaces are naturally formed through the design of the clearance amount, without the need for additional floating modules.

[0048] Damping: A simple compression spring achieves stability in a floating state.

[0049] This design achieves complex functions with very few parts and at very low cost, representing a significant simplification of the structure.

[0050] 3. Actuator configuration optimized for narrow spaces: The slender cylindrical sleeve adapts to deep holes; the coil is placed outside the sleeve rather than inside, making the sleeve itself a simple, low-cost consumable part, and the coil can be reused; the collection box is arranged on the side and can be moved and stored without affecting the working axis of the device's main shaft, resulting in a reasonable space layout.

[0051] 4. Versatility and Extension of the Solution: Although this application is optimized for the disassembly and recycling of flange nuts in confined spaces, its core structure is not limited to this. By replacing the sleeves with different cavities at the ends (such as internal hexagon, external hexagon, Torx, etc.), this device can also be applied to the automatic disassembly and recycling of other types and specifications of ferromagnetic bolts, nuts, or fasteners, demonstrating good modularity and versatility. Attached Figure Description

[0052] Figure 1 A schematic diagram of a flange nut being assembled in a narrow space;

[0053] Figure 2 Schematic diagram of flange nut;

[0054] Figure 3 This is a schematic diagram of the overall structure of the integrated flange nut disassembly and recycling device provided in this embodiment;

[0055] Figure 4 This is an exploded view of the integrated flange nut disassembly and recycling device provided in this embodiment;

[0056] Figure 5 Enlarged view and cross-sectional view of the electric screwdriver head;

[0057] Figure 6 This is a schematic diagram of the sleeve;

[0058] Figure 7 For the electric screwdriver and sleeve assembly drawing and cross-sectional view of the mating parts;

[0059] Figure 8 Partial assembly drawing

[0060] Figure 9 This is a diagram of the collection box's status; the left side shows the recycled state, and the right side shows the unfolded state.

[0061] In the diagram: 1. Frame; 2. Electric screwdriver; 21. Square protrusion; 22. Spring pin; 221. Upper protrusion; 222. Lower protrusion; 23. End face compression spring; 3. Sleeve; 31. Square groove; 32. Waist hole; 33. Hexagonal groove; 4. Electromagnetic coil; 5. Collection assembly; 51. Parallelogram connecting rod; 52. Collection box. Detailed Implementation

[0062] Example:

[0063] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0064] See Figures 3-4 As shown, the integrated flange nut disassembly and recycling device provided in this embodiment mainly includes a frame 1, an electric screwdriver 2, a sleeve 3, an electromagnetic coil 4, and a collection component 5.

[0065] The frame 1 serves as the body of the entire device, and is equipped with an electric screwdriver mounting position and an electromagnetic coil mounting position. An interface is provided at the rear end of the frame for connecting to the flange of the robotic arm.

[0066] The electric screwdriver 2 is fixedly installed in the electric screwdriver mounting position. The output end of the electric screwdriver 2 is engaged with the top of the sleeve 3. The bottom of the sleeve 3 has a groove that matches the flange nut. In this embodiment, the sleeve 3 is a carbon steel sleeve.

[0067] The electromagnetic coil 4 is installed in the electromagnetic coil mounting position, such as Figure 5 As shown, the electromagnetic coil 4 is a ring coil with an inner diameter larger than the outer diameter of the sleeve, so that it is fitted inside the sleeve and the two do not come into contact.

[0068] The collection component 5 includes a collection box 52, such as Figure 9 As shown, when retracted, the collection box 52 is located to the side of the sleeve 3; when unfolded, the collection box 52 moves to the bottom of the sleeve.

[0069] Therefore, the integrated flange nut disassembly and recycling device provided in this embodiment creatively combines an externally surrounding electromagnetic coil, a magnetic sleeve, and a laterally shifting collection box. Utilizing magnetic force overcomes the limitations of mechanical gripping in confined spaces, it reliably grasps the nut; and by using lateral collection to avoid interference with the working path, this solution perfectly solves the problem of recycling perforated flange nuts in confined spaces.

[0070] In one specific embodiment, the electromagnetic coil 4 is externally connected to a power control module (H-bridge drive module) and a DC power supply. When the sleeve loosens the nut, the power control module supplies positive DC current to the electromagnetic coil 4, causing the loosened flange nut to adhere to the groove at the bottom of the sleeve 3. When it is necessary to release the adhered flange nut, the power control module supplies a bipolar waveform current with attenuated amplitude to the electromagnetic coil, actively demagnetizing the sleeve 3 and causing it to lose its adsorption force on the nut. Thus, instantaneous and reliable release is achieved through active demagnetization. This DC pulse active demagnetization method, compared to traditional AC attenuation demagnetization, uses a bipolar waveform current with attenuated amplitude for demagnetization, eliminating the need for an additional AC power supply and requiring only a DC power supply.

[0071] In one specific embodiment, such as Figure 5 As shown, the output end of the electric screwdriver 2 is a square protrusion 21. A set of spring pins 22 is installed on one radial end face of the square protrusion 21. The spring pin has two protrusions, namely an upper protrusion 221 and a lower protrusion 222. An end face compression spring 23 is installed on the axial end face.

[0072] like Figure 6 As shown, the sleeve 3 is a slender cylinder to meet the requirement of going deep into narrow spaces. Its top is provided with a square groove 31 and a waist hole 32 that match the square protrusion of the electric screwdriver, and the bottom is a hexagonal groove 33 corresponding to nuts of different specifications.

[0073] like Figure 7 As shown, after the electric screwdriver 2 and the sleeve 3 are assembled, the lower protrusion 222 of the spring pin 22 on the electric screwdriver engages with the waist hole 32 of the sleeve. The length direction of the waist hole 32 is consistent with the axial direction of the sleeve 3, allowing the sleeve 3 to move axially within a certain range, thus achieving axial limiting. The axial end face compression spring 23 of the electric screwdriver 2 is compressed between the bottom of the square groove 31 of the sleeve and the end face of the electric screwdriver 2. This end face compression spring 23 provides damping for the floating motion, enhancing the anti-interference and buffering capabilities of the entire device when in contact with the workpiece.

[0074] like Figure 7As shown in section GG, the inner dimension of the square groove 31 of the sleeve is slightly larger than the outer dimension of the square protrusion 21 of the electric screwdriver. This design enables the sleeve 3 to float radially. The fit of the square section also achieves circumferential and radial limiting.

[0075] like Figure 7 As shown in section HH, the depth of the square groove 31 on the sleeve is greater than the height of the square protrusion 21 on the electric screwdriver. This design enables the sleeve 3 to float axially. The sleeve 3 achieves angular floating capability through the combined effect of the inner contour and depth dimensions. The floating at the top of the sleeve 3, influenced by the angular floating and the axial length of the sleeve, is amplified and transmitted to the bottom of the sleeve, ensuring that the floating range at the bottom of the sleeve remains sufficient even without an excessively loose fit between the electric screwdriver and the sleeve.

[0076] The collection assembly 51 includes a collection box 52 and a new parallelogram-shaped connecting rod 51. The frame connecting rod 51 is fixed in the mounting position of the frame, and the collection box is fixed to the movable end of the new parallelogram-shaped connecting rod 51. The collection box 52 has an opening at the top and a rotatable cover 521 at the bottom (for easy unloading later). Figure 9 As shown, when retracted, the collection box 52 is located to the side of the sleeve, without affecting the operation of the sleeve. When extended, the collection box 52 moves to directly below the sleeve by driving the parallelogram linkage.

[0077] The workflow of this integrated flange nut disassembly and recycling device is as follows:

[0078] 1. Quick-change socket: The operator presses the protrusion on the spring pin of the electric screwdriver, causing the pin to retract. Under the action of the spring on the end face of the electric screwdriver, the socket pops out axially, allowing the old socket to be pulled axially from the square protrusion on the electric screwdriver. Align the square groove of the new socket with the protrusion and insert it. The inclined surface of the lower protrusion of the spring pin contacts and presses against the socket, causing the pin to retract until the lower protrusion of the spring pin enters the slotted hole. The pin then springs into the slotted hole of the socket, completing the installation. This process requires no tools and is quick and easy.

[0079] 2. Positioning and Floating Docking: The robotic arm moves the frame above the workpiece. During the process of the lower end of the sleeve contacting and inserting into the narrow space, and finally aligning with the nut, the sleeve can float in multiple directions thanks to the planar and axial clearances between the sleeve and the electric screwdriver, adaptively compensating for the robot's positioning errors. Compression springs provide contact damping, ensuring smooth docking.

[0080] 3. Loosening and Magnetic Adsorption: When the electric screwdriver is turned on, the sleeve rotates through the interaction of the square protrusion and groove, loosening the nut. At the same time, the preset program of the power controller module is activated, and positive DC current is supplied to the electromagnetic coil. The magnetic field generated by the coil magnetizes the sleeve, generating a strong magnetic force that firmly attracts the loosened flange nut into the internal hexagonal groove at the bottom of the sleeve.

[0081] 4. Removal and Retrieval Preparation: The robotic arm vertically lifts the actuator (along with the attached nut) out of the confined space. Then, it drives the parallel four-bar linkage to move the collection box directly under the sleeve (at this time, the collection box cover is closed).

[0082] 5. Demagnetization and Release: Activating the preset program of the power controller module, a bipolar waveform current with attenuated amplitude is passed through the electromagnetic coil to actively demagnetize the sleeve. The sleeve's magnetism rapidly weakens to near zero, losing its attraction to the nut. Under the influence of gravity, the nut falls into the collection box directly below.

[0083] 6. Reset: The parallel four-bar linkage drives the collection box to retract to the side position, ready for the next work cycle.

[0084] 7. Unloading: If the collection box is full, move the collection box to a suitable position, open the collection box cover, and the nut will fall out due to gravity, emptying the collection box. Then close the collection box cover.

[0085] The automatic disassembly and retrieval actuator for flange nuts in confined spaces provided in this embodiment has the following technical advantages compared with the prior art:

[0086] 1. Comparison of magnetic adsorption schemes

[0087] In the solution described in patent document CN202121441425, AC power is used for demagnetization, while this application uses DC power. The coil in that patent document is fixed inside the cylinder, while in this application it is fixed to an open frame. Furthermore, the solution in that patent document lacks the function of quickly changing the sleeve.

[0088] In the solutions described in patent documents CN200920031773 and CN201720520584, the electromagnetic device is inside the sleeve, which increases the cost of the sleeve and the difficulty of maintenance. However, in this application, the electromagnetic coil is outside the sleeve, which reduces the cost of the sleeve.

[0089] 2. Comparison of Floating Schemes

[0090] Patent document CN202211416197 does not have a waist hole, which differs from the axial limiting method of this application. It adopts a spring axial floating method, but the structure is more complex and does not have a quick-change sleeve function.

[0091] Patent document CN202411581774 employs a spring-driven axial floating mechanism, but its structure is more complex and lacks a quick-change sleeve function. While other methods implement the floating function as a separate module, this application integrates the key floating structure (waist hole, spring, and limit pin) into the two basic functional components: the "sleeve" and the "electric bit." Multi-directional floating is achieved through the clearance fit between the sleeve groove and the bit protrusion, with damping provided by a compression spring mounted on the bit's end face. This design significantly reduces the number of parts, simplifies the overall structure, and lowers manufacturing costs. Furthermore, the "shaft pin" is replaced with a "spring pin," integrating a quick-change function. The spring's position is also modified accordingly.

[0092] 3. Overall horizontal comparison

[0093] In comparison with patent document CN202310381045, which is used as an end effector, the screws that are removed cannot be actively detached and require an additional mechanism or manual removal, resulting in low efficiency.

[0094] Compared with other end effectors, patent document CN202421900771 lacks a retraction function and is not suitable for narrow spaces.

[0095] 4. Comparison of work environment spaces

[0096] The narrow space described in patent document CN201810523855 is radial and belongs to a different working environment.

[0097] The narrow space described in patent document CN202411267086 is consistent with this application, but it does not solve the problem of bolt removal and recycling.

[0098] 5. Technical Background Environment

[0099] Patent document CN201721849354, as an equipment automation platform, can be equipped with the solution of this application. The end effector described in this patent document does not have the function of actively releasing bolts, resulting in low efficiency.

[0100] Patent document CN202421788210, as an equipment automation platform, can incorporate the solution of this application. However, the vacuum suction nozzle described in that patent document suffers from leakage of vacuum force through a central hole in the nut (or bolt with a hole), resulting in ineffective or weak adsorption. This application employs magnetic attraction, unaffected by the presence or absence of a central hole. As long as the target object is made of a magnetically conductive material (such as carbon steel), it can be reliably adsorbed, offering wider applicability.

[0101] Comparison of 6 Recycling Schemes

[0102] Patent document CN202410033085 discusses the influence of nut shape and airflow: The nut's width exceeding its height (approximately a flat cylinder) makes it prone to flipping and jamming in airflow, and the central through-hole causes airflow leakage, severely weakening the negative pressure adsorption effect and rendering the nut recovery unreliable. Spatial adaptability: The air guide tube in this patent needs to simultaneously accommodate the screwdriver handle and the airflow channel, meaning its outer diameter is significantly larger than the nut's outer diameter. In the "side-closed / semi-closed deep hole" defined in this solution, the air guide tube cannot penetrate deeply enough, thus rendering it inoperable.

[0103] Patent document CN202411383124 describes a mechanical gripping scheme with a more complex structure, complicated procedures, and low efficiency.

[0104] The same applies to patent document CN201820391937, and it is not suitable for narrow spaces.

[0105] The same applies to patent document CN202422693072.

[0106] Patent document CN202311756991 states that its negative pressure adsorption relies on a relative seal between the inner hole of the sleeve and the end face of the nut. For flange nuts with a central through hole, airflow will leak from the central hole, significantly weakening or even eliminating the negative pressure effect, resulting in unreliable adsorption.

[0107] The recycling mechanism in patent document CN202311357410 relies on the "linear stacking" of nuts within the hollow cavity of the sleeve body. The flange diameter of the flange nut is larger than the threaded portion. When the first nut is sucked in, its flange edge gets stuck in the cavity, forming a "cap" that completely blocks the cavity passage. Subsequent nuts cannot pass through the flange edge of the previous nut and be pushed upwards, causing the recycling chain to immediately break.

[0108] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An integrated device for disassembling and recycling flange nuts, characterized in that, Includes a frame, electric screwdriver, sleeve, electromagnetic coil, and collection assembly; An electric screwdriver mounting position is provided in the frame, the electric screwdriver is fixedly installed in the electric screwdriver mounting position, the output end of the electric screwdriver is engaged with the top of the sleeve, and the bottom of the sleeve is a groove that matches the flange nut; An electromagnetic coil mounting position is provided in the frame, and the electromagnetic coil is installed in the electromagnetic coil mounting position. The electromagnetic coil is a ring coil with an inner diameter larger than the outer diameter of the sleeve, so that it is sleeved on the outside of the sleeve without the two coming into contact. The collection assembly includes a collection box, which is located to the side of the sleeve when retracted and moves to the bottom of the sleeve when extended.

2. The integrated flange nut disassembly and recycling device as described in claim 1, characterized in that, The electromagnetic coil is connected to an external power supply control module and a DC power supply. As the sleeve loosens the nut, the power control module supplies positive DC current to the electromagnetic coil to attract the loosened flange nut into the groove at the bottom of the sleeve. When it is necessary to release the attracted flange nut, the power control module supplies a bipolar waveform with attenuated amplitude to the electromagnetic coil to actively demagnetize the sleeve, causing it to lose its attraction to the nut.

3. The integrated flange nut disassembly and recycling device as described in claim 1, characterized in that, The output end of the electric screwdriver is a protrusion, a spring pin is installed on the radial end face of the protrusion, and a compression spring is installed on the axial end face of the protrusion. The sleeve is a slender cylinder with a groove at its top that mates with the protrusion of the electric screwdriver, and a waist hole on the side of the groove. When the electric screwdriver and the sleeve are assembled, the spring pin on the electric screwdriver is engaged in the waist hole of the sleeve. The axial end face compression spring of the electric screwdriver is compressed at the bottom of the groove of the sleeve and the end face of the electric screwdriver.

4. The integrated flange nut disassembly and recycling device as described in claim 3, characterized in that, The spring pin has two protrusions, an upper protrusion and a lower protrusion.

5. The integrated flange nut disassembly and recycling device as described in claim 3, characterized in that, The length direction of the waist hole is consistent with the axial direction of the sleeve, allowing the sleeve to move axially within a certain range.

6. The integrated flange nut disassembly and recycling device as described in claim 3, characterized in that, The inner dimension of the groove at the top of the sleeve is larger than the outer dimension of the protrusion at the output end of the electric screwdriver.

7. The integrated flange nut disassembly and recycling device as described in 3 or 6, characterized in that, The depth of the groove at the top of the sleeve is greater than the height of the protrusion at the output end of the electric screwdriver.

8. The integrated flange nut disassembly and recycling device as described in claim 7, characterized in that, The protrusion at the output end of the electric screwdriver is a square protrusion, and the groove at the top of the sleeve is a square groove.

9. The integrated flange nut disassembly and recycling device as described in claim 1, characterized in that, The collection assembly also includes a parallelogram link, the frame link of which is fixed to the frame, and the collection box is fixed to the movable end of the parallelogram link.

10. The integrated flange nut dismantling and recycling device as described in claim 1 or 9, characterized in that, The collection box has an opening at the top and a rotatable cover at the bottom.

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