Automatic feeding system for fastener punching

Abstract

The invention discloses an automatic feeding system for fastener punching, and relates to the technical field of fastener feeding, and the automatic feeding system is technically characterized by comprising a conveying mechanism and a punching mechanism; the conveying mechanism comprises a conveying frame, a conveying belt is arranged on the conveying frame, baffles are fixedly arranged on the conveying frame and located on the two sides of the conveying belt, supporting plates are arranged at the bottoms of the baffles and close to the punching mechanism, and bearing folded plates are arranged at the bottoms of the supporting plates. The punching mechanism comprises a supporting frame, a workbench is fixedly arranged at the top of the supporting frame, a punching frame is fixedly arranged above the workbench, and a punching assembly is arranged on the punching frame through a first lifting assembly; a second lifting assembly is arranged at the bottom of the supporting frame, a fixed extension plate is arranged at the top of the second lifting assembly, a movable connecting plate is rotationally connected to the top of the fixed extension plate through a rotating shaft, a limiting plate is arranged on one side of the fixed extension plate, and a positioning seat is fixedly connected to the other end of the movable connecting plate; the feeding system integrates the positioning function during punching, and the integration degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fastener feeding, and in particular to an automatic fastener punching feeding system. Background Art

[0002] Fasteners are an intermediate connecting part used to connect two components. They are widely used in construction projects, especially for stabilizing scaffolding. According to different uses and functions, fasteners can be divided into many types, such as cross fasteners, rotating fasteners and connecting fasteners. In general, fasteners are an indispensable part of construction projects, and their quality and selection are crucial to ensure construction safety and stability. Therefore, when selecting fasteners, special attention should be paid to their quality, specifications and applicability to ensure that they can meet construction needs.

[0003] The main reason for fasteners to be punched is to increase their stability, firmness and adaptability, to ensure that the fasteners can be firmly fixed in the required position during use, and to prevent them from loosening or falling off. Punching can make fasteners adapt to materials of different thicknesses and materials, form a stronger connection, and improve the bearing capacity and safety of the overall structure. In addition, punching also facilitates the disassembly and repair of fasteners, and facilitates future maintenance and replacement. Therefore, fasteners need to be punched to meet the needs of the project and ensure construction safety and stability.

[0004] In order to realize the automatic fastener punching work, an automatic feeding system is required. The existing fastener punching automatic feeding system has an application number of CN201410336131.7. However, when using this patent, another positioning mechanism is required to position the fastener to help ensure the accuracy of the fastener punching. The degree of integration is low and materials are wasted. Summary of the invention

[0005] The object of the present invention is to provide an automatic feeding system for fastener punching, wherein the feeding system integrates a positioning function during punching to improve the degree of integration.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fastener punching automatic feeding system, comprising a conveying mechanism and a punching mechanism;

[0008] The conveying mechanism comprises a conveying frame, a conveying belt is arranged on the conveying frame, baffles are fixedly arranged on both sides of the conveying belt, an inclined support plate is arranged at the bottom of the baffle near the punching mechanism, the support plate is used to hold up the fastener, an inclined bearing folding plate is arranged at the bottom of the support plate, and the two bearing folding plates are arranged inwardly facing each other;

[0009] The punching mechanism comprises a support frame, a workbench is fixedly arranged on the top of the support frame, a punching frame is fixedly arranged above the workbench, a punching assembly is arranged on the top of the punching frame via a first lifting assembly, and a first through hole is opened on the workbench for the punching assembly to pass through;

[0010] The workbench is provided with a limit tube, a second lifting assembly is fixedly provided at the bottom of the support frame, a fixed extension plate is fixedly provided at the top of the second lifting assembly, a movable connecting plate is rotatably connected to the top of the fixed extension plate through a rotating shaft, a limit plate is provided on the side of the fixed extension plate away from the conveying mechanism, and the outer wall of the movable connecting plate is adapted to the inner wall of the limit tube;

[0011] The other end of the movable connecting plate is fixedly connected to a positioning seat, and a second through hole for the punching assembly to pass through is opened on the positioning seat. Two hook plates are arranged on the side of the positioning seat close to the conveying mechanism, and a counterweight block is arranged under the hook plate. One of the hook plates corresponds to a bearing folding plate. A telescopic assembly is fixedly arranged on the side of the positioning seat away from the conveying mechanism, and a clamping plate is fixedly connected to the telescopic assembly toward the hook plate.

[0012] When it is necessary to grab the fastener, the second lifting assembly is extended, the movable connecting plate is disengaged from the limiting tube, and under the gravity of the counterweight block and the limiting action of the limiting plate, the positioning seat tilts toward the conveying mechanism until the load-bearing folding plate is in contact with the hook plate. After the conveyor belt conveys the fastener to the pallet, the hook plate hooks the fastener, and the telescopic assembly is extended to make the clamping plate close to the hook plate to complete the clamping of the fastener; when it is necessary to punch a hole in the fastener, the second lifting assembly is contracted to make the movable connecting plate snap into the limiting tube, the movable connecting plate returns to the normal position and makes the bottom surface of the positioning seat in contact with the top surface of the workbench, and the first through hole corresponds to the second through hole.

[0013] By adopting the above scheme, in the initial state, the second lifting assembly remains in a retracted state, the movable connecting plate is inserted into the limiting tube, the bottom surface of the positioning seat is fitted with the top surface of the workbench, and the first through hole corresponds to the second through hole; the hook plate is in a vertical state, and there is a certain distance between the clamping plate and the hook plate; when the system needs to grab the fastener, the second lifting assembly is extended, and the movable connecting plate escapes from the limiting tube; due to the gravity of the counterweight block and the limiting effect of the limiting plate, the positioning seat begins to tilt toward the conveying mechanism until the bearing folding plate fits with the hook plate; at this time, the conveyor belt starts to work and conveys the fastener to the pallet; when the fastener reaches the preset position on the pallet, the hook plate hooks the fastener; then, the telescopic assembly is extended, so that the clamping plate is close to the hook plate to complete the clamping of the fastener; When the fastener is successfully clamped, the second lifting assembly begins to shrink, allowing the movable connecting plate to be clamped into the limiting tube again; due to the limitation of the limiting tube, the movable connecting plate begins to return to the center, and drives the positioning seat to return to the center together, until the bottom surface of the positioning seat fits with the top surface of the workbench, at which time the first through hole corresponds to the second through hole; then, the first lifting assembly extends, driving the punching assembly to descend, and punching the fastener until the punching assembly enters the first through hole or the second through hole to complete the punching work; after the punching is completed, the first lifting assembly shrinks, driving the punching assembly to rise; then, the telescopic assembly shrinks, so that the clamping plate moves away from the hook plate, releasing the fastener, and the fastener with the punched hole can be taken; during the whole process, the fastener is transported to the specified position by the conveying mechanism, and then The punching mechanism automatically punches holes in the fasteners, greatly improving work efficiency and automation. Compared with the prior art, the system does not require an additional positioning mechanism to ensure the accuracy of fastener punching, saving positioning mechanism materials. All necessary components, including the conveying mechanism, the punching mechanism and the positioning mechanism, are integrated into one system, thus achieving higher integration. This not only reduces the complexity and floor space of the equipment, but also reduces maintenance costs. Due to the clever internal design of the system, especially through the coordinated use of components such as the movable connecting plate, the limit tube, the load-bearing folding plate and the hook plate, it can ensure that the fasteners always remain in the correct position during the punching process, avoiding the movement or dislocation of the fasteners during the punching process, thereby improving material utilization and reducing waste; the system can easily complete the grabbing, positioning and punching operations of fasteners, greatly simplifying the operation process; in addition, the system is highly flexible (the telescopic component can control the extension distance) and can adapt to fasteners of different sizes and types, further improving the ease of operation; automated operation not only improves production efficiency, but also reduces the safety risks brought by manual operation; since the system can continuously perform fastener punching work, the conveying mechanism is directly related to the punching mechanism, so the overall efficiency of the production line can be improved; the fastener punching automatic feeding system has brought significant improvements and conveniences to the fastener punching work in construction projects through its advantages such as high integration, high material utilization, strong adaptability, and improved production efficiency and safety.

[0014] Preferably, the punching assembly comprises a punching motor, and a punching drill bit is fixedly mounted on a downward output shaft of the punching motor.

[0015] Preferably, the bearing folding plate is set to be an inverted L-shape, and a bar-shaped permanent magnet is arranged on a side of the bearing folding plate facing the hook plate, and the two bearing folding plates are connected by a connecting rod.

[0016] Preferably, the side of the top of the limiting tube facing the conveying mechanism is configured as a curved surface.

[0017] Preferably, the support plate includes a first folding plate and a second folding plate which are perpendicular to each other.

[0018] Preferably, the first lifting component is configured as a lifting hydraulic cylinder, the second lifting component is configured as a lifting electric cylinder, and the telescopic component is configured as a telescopic electric cylinder.

[0019] Preferably, a buffer pad is bonded to a side of the hook plate facing the load-bearing folding plate.

[0020] Preferably, the support plate is provided with a jet assembly facing the bearing folding plate, the jet assembly includes a jet pipe, the outer wall of the jet pipe is fixedly connected to the support plate, the jet pipe faces the bearing folding plate, and the jet pipe is connected to a blower through a connecting pipe.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the initial state, the second lifting assembly remains in a retracted state, the movable connecting plate is inserted into the limiting tube, the bottom surface of the positioning seat is in contact with the top surface of the workbench, and the first through hole corresponds to the second through hole; the hook plate is in a vertical state, and there is a certain distance between the clamping plate and the hook plate; when the system needs to grab the fastener, the second lifting assembly is extended, and the movable connecting plate escapes from the limiting tube; due to the gravity of the counterweight block and the limiting effect of the limiting plate, the positioning seat begins to tilt toward the conveying mechanism until the bearing folding plate and the hook plate are in contact with each other; at this time, the conveyor belt starts to work and transports the fastener to the pallet; when the fastener reaches the preset position on the pallet, the hook plate hooks the fastener; then, the telescopic assembly extends, so that the clamping plate is close to the hook plate to complete the clamping of the fastener; when the fastener is successfully clamped, the second lifting assembly begins to retract, so that the movable connecting plate is again inserted into the limiting tube; due to the restriction of the limiting tube, the movable connecting plate begins to return to the center, and drives the positioning seat to return to the center together, until the bottom surface of the positioning seat is in contact with the top surface of the workbench The two surfaces fit together, and the first through hole corresponds to the second through hole; then, the first lifting component extends, driving the punching component to descend, and punches the fastener until the punching component enters the first through hole or the second through hole to complete the punching work; after the punching is completed, the first lifting component contracts, driving the punching component to rise; then, the telescopic component contracts, so that the clamping plate is away from the hook plate, and the fastener is released, and the punched fastener can be taken; during the whole process, the fastener is transported to the specified position by the conveying mechanism, and then the fastener is automatically punched by the punching mechanism, which greatly improves the work efficiency and automation level; compared with the prior art, the system does not require an additional positioning mechanism to ensure the accuracy of fastener punching, saving positioning mechanism materials; all necessary components, including the conveying mechanism, the punching mechanism and the positioning mechanism, are integrated into one system, thereby achieving higher integration; this not only reduces the complexity and floor space of the equipment, but also reduces maintenance costs;

[0023] Second, due to the ingenious internal design of the system, especially through the coordinated use of components such as the movable connecting plate, the limit tube, the load-bearing folding plate and the hook plate, it can ensure that the fasteners always remain in the correct position during the punching process; avoiding the movement or dislocation of the fasteners during the punching process, thereby improving material utilization and reducing waste;

[0024] 3. The system can easily complete the grabbing, positioning and punching operations of fasteners, greatly simplifying the operation process; in addition, the system is highly flexible (the telescopic component can control the extension distance) and can adapt to fasteners of different sizes and types, further improving the ease of operation;

[0025] 4. Automated operation not only improves production efficiency, but also reduces the safety risks brought by manual operation; since the system can continuously perform fastener punching work, and the conveying mechanism is directly related to the punching mechanism, the overall efficiency of the production line can be improved;

[0026] 5. The fastener punching automatic feeding system has brought significant improvements and conveniences to the fastener punching work in construction projects through its advantages such as high integration, high material utilization, strong adaptability, and improved production efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a side view of embodiment 1 of the present invention (punching mechanism cross-section).

[0029] Figure 2 It is a top view of the conveying mechanism of embodiment 1 of the present invention.

[0030] Figure 3 It is a cross-sectional view of the punching mechanism of embodiment 1 of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of the jet assembly of Example 2 of the present invention.

[0032] In the figure: 101, conveying frame; 102, conveyor belt; 103, baffle; 104, support plate; 105, bearing folding plate; 201, support frame; 202, workbench; 221, first through hole; 203, punching frame; 204, first lifting assembly; 301, limit tube; 302, second lifting assembly; 303, fixed extension plate; 304, movable connecting plate; 305, limit plate; 401, positioning seat; 411, second through hole; 402, hook plate; 403, counterweight; 404, telescopic assembly; 405, clamping plate; 501, punching motor; 502, punching drill; 601, permanent magnet; 602, connecting rod; 603, buffer pad; 701, jet pipe; 702, connecting pipe; 703, blower. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, and are not intended to be exhaustive.

[0034] All embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] A fastener punching automatic feeding system, such as Figure 1-3 As shown, it includes a conveying mechanism and a punching mechanism; the conveying mechanism includes a conveying frame 101, a conveying belt 102 is arranged on the conveying frame 101, baffles 103 are fixedly arranged on both sides of the conveying belt 102 of the conveying frame 101, an inclined support plate 104 is arranged at the bottom of the baffle 103 near the punching mechanism, the support plate 104 is used to hold up the fastener, and an inclined bearing folding plate 105 is arranged at the bottom of the support plate 104, and the two bearing folding plates 105 are arranged inwardly facing each other; the punching mechanism includes a support frame 201, a workbench 202 is fixedly arranged on the top of the support frame 201, a punching frame 203 is fixedly arranged above the workbench 202, a punching assembly is arranged on the top of the punching frame 203 through a first lifting assembly 204, and a first through hole 221 for the punching assembly to pass through is opened on the workbench 202; a limiting tube 301 is opened on the workbench 202, and a fixed support 301 is arranged at the bottom of the support frame 201 There is a second lifting component 302, a fixed extension plate 303 is fixedly arranged on the top of the second lifting component 302, a movable connecting plate 304 is rotatably connected to the top of the fixed extension plate 303 through a rotating shaft, a limiting plate 305 is arranged on the side of the fixed extension plate 303 away from the conveying mechanism, and the outer wall of the movable connecting plate 304 is adapted to the inner wall of the limiting tube 301; the other end of the movable connecting plate 304 is fixedly connected to a positioning seat 401, a second through hole 411 for the punching component to pass through is opened on the positioning seat 401, two hook plates 402 are arranged on the side of the positioning seat 401 close to the conveying mechanism, a counterweight block 403 is arranged below the hook plate 402, one hook plate 402 corresponds to one load-bearing folding plate 105, a telescopic component 404 is fixedly arranged on the side of the positioning seat 401 away from the conveying mechanism, and the telescopic component 404 is fixedly connected to a clamping plate 405 facing the hook plate 402;

[0037] like Figure 1-3As shown, in the initial state, the second lifting assembly 302 remains in a retracted state, the movable connecting plate 304 is stuck in the limiting tube 301, the bottom surface of the positioning seat 401 is in contact with the top surface of the workbench 202, and the first through hole 221 corresponds to the second through hole 411; the hook plate 402 is in a vertical state, and there is a certain distance between the clamping plate 405 and the hook plate 402; when the system needs to grab the fastener, the second lifting assembly 302 is extended, and the movable connecting plate 304 is out of the limiting tube 301; due to Under the gravity of the counterweight block 403 and the limiting effect of the limiting plate 305, the positioning seat 401 begins to tilt toward the conveying mechanism until the bearing folding plate 105 fits with the hook plate 402; at this time, the conveyor belt 102 starts to work and conveys the fastener to the support plate 104; when the fastener reaches the preset position on the support plate 104, the hook plate 402 hooks the fastener; then, the telescopic component 404 extends, so that the clamping plate 405 is close to the hook plate 402, and the fastener is clamped; when the fastener is successfully After clamping, the second lifting assembly 302 begins to shrink, so that the movable connecting plate 304 is clamped into the limiting tube 301 again; due to the limitation of the limiting tube 301, the movable connecting plate 304 begins to return to the center, and drives the positioning seat 401 to return to the center together, until the bottom surface of the positioning seat 401 fits with the top surface of the workbench 202, at this time, the first through hole 221 corresponds to the second through hole 411; then, the first lifting assembly 204 extends, drives the punching assembly to descend, and performs a punching operation on the fastener, until the punching assembly enters the first through hole 221 or the second through hole 411, and the punching work is completed; after the punching is completed, the first lifting assembly 204 shrinks, driving the punching assembly to rise; then, the telescopic assembly 404 shrinks, so that the clamping plate 405 is away from the hook plate 402, the fastener is released, and the fastener with the punched hole can be taken; during the whole process, the fastener is transported to the specified position by the conveying mechanism, and then the fastener is automatically punched by the punching mechanism, which greatly improves the work efficiency and the degree of automation;

[0038] like Figure 1-3As shown, compared with the prior art, the system does not require an additional positioning mechanism to ensure the accuracy of fastener punching, saving positioning mechanism materials; all necessary components, including the conveying mechanism, the punching mechanism and the positioning mechanism, are integrated into one system, thereby achieving higher integration; this not only reduces the complexity and floor space of the equipment, but also reduces maintenance costs; due to the clever internal design of the system, especially through the coordinated use of components such as the movable connecting plate 304, the limiting tube 301, the bearing folding plate 105 and the hook plate 402, it can ensure that the fastener is always in the correct position during the punching process; avoid the movement or dislocation of the fastener during the punching process, thereby improving material utilization and reducing waste; the system can The grabbing, positioning and punching operations of fasteners can be completed easily, greatly simplifying the operation process; in addition, the system is also highly flexible (the telescopic component 404 can control the extension distance), can adapt to fasteners of different sizes and types, and further improves the ease of operation; automated operation not only improves production efficiency, but also reduces the safety risks brought by manual operation; since the system can continuously perform fastener punching work, the conveying mechanism is directly related to the punching mechanism, so the overall efficiency of the production line can be improved; the fastener punching automatic feeding system has brought significant improvements and conveniences to the fastener punching work in construction projects through its advantages such as high integration, high material utilization, strong adaptability, and improved production efficiency and safety.

[0039] like Figure 1 As shown, the punching assembly includes a punching motor 501, and a punching drill bit 502 is fixedly installed on the downward output shaft of the punching motor 501. When the first lifting assembly 204 is extended, the punching motor 501 starts to start, driving the punching drill bit 502 to rotate, thereby making the punching work smoother.

[0040] like Figure 1-2 As shown, the bearing folding plate 105 is set to an inverted L shape, so that the bearing folding plate 105 can extend relatively inward, and the bearing folding plate 105 is located inside the two support plates 104, so that the hook plate 402 can also be set between the two support plates 104, which is convenient for hooking the fastener. A bar permanent magnet 601 is set on the side of the bearing folding plate 105 facing the hook plate 402. The permanent magnet 601 can magnetically absorb the hook plate 402 to ensure the accurate position of the hook plate 402. The two bearing folding plates 105 are connected by a connecting rod 602 to ensure the structural stability of the support plate 104 and the bearing folding plate 105.

[0041] like Figure 3 As shown, the top of the limiting tube 301 facing the conveying mechanism is configured as an arc surface to facilitate the tipping and returning of the movable connecting plate 304, making its mechanical movement smoother.

[0042] like Figure 1-2As shown, the support plate 104 includes a first folding plate and a second folding plate which are perpendicular to each other. The first folding plate and the second folding plate respectively support the bottom and side wall of the fastener to reduce the possibility of accidental falling of the fastener. Since the support plate 104 is fixed in this embodiment, the length of the fastener is fixed, but the width is not fixed, and it can accommodate fasteners of different widths and the same length.

[0043] The first lifting component 204 is configured as a lifting hydraulic cylinder, the second lifting component 302 is configured as a lifting electric cylinder, and the telescopic component 404 is configured as a telescopic electric cylinder; both the hydraulic cylinder and the electric cylinder can achieve stable telescopic and lifting, with mature technology and convenient automatic control.

[0044] like Figure 3 As shown, a buffer pad 603 is bonded to one side of the hook plate 402 facing the bearing folding plate 105 to improve the buffering capacity, but the buffer pad 603 cannot be too thick and the thickness does not exceed 2.5 mm to avoid affecting the magnetic adsorption of the metal hook plate 402 by the bar permanent magnet 601.

[0045] Example 2

[0046] like Figure 4 As shown, the support plate 104 is provided with a jet assembly toward the bearing folding plate 105, and the jet assembly includes a jet pipe 701, the outer wall of the jet pipe 701 is fixedly connected to the support plate 104, the jet pipe 701 faces the bearing folding plate 105, and the jet pipe 701 is connected to the blower 703 through the connecting pipe 702; after the blower 703 is started, air is supplied to the jet pipe 701 through the connecting pipe 702, and the jet pipe 701 blows air toward the bearing folding plate 105, thereby blowing off the debris generated by punching the bearing folding plate 105, so as to avoid the situation that the hook plate 402 is not tightly fitted to the bearing folding plate 105, so as to be unable to hook the fastener.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all within the scope of protection of the present invention.

Claims

1. A fastener punching automatic feeding system, characterized in that: It includes a conveying mechanism and a punching mechanism; The conveying mechanism comprises a conveying frame (101), a conveying belt (102) is arranged on the conveying frame (101), baffles (103) are fixedly arranged on both sides of the conveying belt (102) of the conveying frame (101), an inclined supporting plate (104) is arranged at the bottom of the baffle (103) near the punching mechanism, the supporting plate (104) is used to support the fastener, and an inclined bearing folding plate (105) is arranged at the bottom of the supporting plate (104), and the two bearing folding plates (105) are arranged inwardly facing each other; The punching mechanism comprises a support frame (201), a workbench (202) is fixedly arranged on the top of the support frame (201), a punching frame (203) is fixedly arranged above the workbench (202), a punching assembly is arranged on the top of the punching frame (203) via a first lifting assembly (204), and a first through hole (221) is opened on the workbench (202) for the punching assembly to pass through; A limiting tube (301) is provided on the workbench (202); a second lifting assembly (302) is fixedly provided at the bottom of the support frame (201); a fixed extension plate (303) is fixedly provided at the top of the second lifting assembly (302); a movable connecting plate (304) is rotatably connected to the top of the fixed extension plate (303) via a rotating shaft; a limiting plate (305) is provided on the side of the fixed extension plate (303) away from the conveying mechanism; and an outer wall of the movable connecting plate (304) is adapted to an inner wall of the limiting tube (301); The other end of the movable connecting plate (304) is fixedly connected to a positioning seat (401), and a second through hole (411) is provided on the positioning seat (401) for the punching assembly to pass through. Two hook plates (402) are arranged on the side of the positioning seat (401) close to the conveying mechanism, and a counterweight block (403) is arranged below the hook plate (402). One of the hook plates (402) corresponds to one of the bearing folding plates (105). A telescopic assembly (404) is fixedly arranged on the side of the positioning seat (401) away from the conveying mechanism, and a clamping plate (405) is fixedly connected to the telescopic assembly (404) facing the hook plate (402); When it is necessary to grab the fastener, the second lifting assembly (302) is extended, the movable connecting plate (304) is disengaged from the limiting tube (301), and under the gravity of the counterweight block (403) and the limiting action of the limiting plate (305), the positioning seat (401) tilts toward the conveying mechanism until the bearing folding plate (105) and the hook plate (402) are in contact with each other. After the conveyor belt (102) conveys the fastener to the supporting plate (104), the hook plate (402) hooks the fastener. The telescopic component (404) is extended so that the clamping plate (405) is close to the hook plate (402) to complete the clamping of the fastener; when the fastener needs to be punched, the second lifting component (302) is contracted so that the movable connecting plate (304) is inserted into the limiting tube (301), and the movable connecting plate (304) is returned to the correct position so that the bottom surface of the positioning seat (401) is in contact with the top surface of the workbench (202), and the first through hole (221) corresponds to the second through hole (411).

2. The fastener punching automatic feeding system according to claim 1, characterized in that: The punching assembly comprises a punching motor (501), and a punching drill bit (502) is fixedly mounted on a downward output shaft of the punching motor (501).

3. The fastener punching automatic feeding system according to claim 1, characterized in that: The bearing folding plate (105) is configured to be in an inverted L shape, a bar-shaped permanent magnet (601) is disposed on one side of the bearing folding plate (105) facing the hook plate (402), and the two bearing folding plates (105) are connected via a connecting rod (602).

4. The fastener punching automatic feeding system according to claim 1, characterized in that: The side of the top of the limiting tube (301) facing the conveying mechanism is configured as a curved surface.

5. The fastener punching automatic feeding system according to claim 1, characterized in that: The support plate (104) comprises a first folding plate and a second folding plate which are perpendicular to each other.

6. The fastener punching automatic feeding system according to claim 1, characterized in that: The first lifting component (204) is configured as a lifting hydraulic cylinder, the second lifting component (302) is configured as a lifting electric cylinder, and the telescopic component (404) is configured as a telescopic electric cylinder.

7. The fastener punching automatic feeding system according to claim 1, characterized in that: A buffer pad (603) is bonded to one side of the hook plate (402) facing the bearing folding plate (105).

8. The fastener punching automatic feeding system according to claim 1, characterized in that: The support plate (104) is provided with an air jet assembly facing the supporting folding plate (105), and the air jet assembly comprises an air jet pipe (701). The outer wall of the air jet pipe (701) is fixedly connected to the support plate (104), the air jet pipe (701) faces the supporting folding plate (105), and the air jet pipe (701) is connected to a blower (703) through a connecting pipe (702).

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