Rivet feeding mechanism of automatic riveting gun and automatic riveting gun

Abstract

The invention relates to a rivet feeding mechanism of an automatic riveting gun and the automatic riveting gun. The rivet feeding mechanism comprises a fixing plate, a rivet feeding pipeline, a rivet blocking module, a rivet pressing module and a fixing base. The nail feeding pipeline is fixedly connected with the fixing base, and the output end of the nail feeding pipeline penetrates through the fixing base and then communicates with the nail blocking module. The fixed seat is fixedly connected with the fixed plate; the nail pressing module is fixedly mounted on the fixing plate; the nail pressing module is installed on the fixing plate and located in a gap between the fixing base and the nail blocking module. A through hole for a rivet pulling mechanism of the automatic riveting gun to pass through is formed in the bottom of the fixed seat; the whole structure is stable, installation is convenient, rivets are pressed and limited through the rivet blocking module and the coping module so that the automatic riveting gun can conduct accurate rivet feeding operation, and the situation that in the prior art, due to the fact that the positions of the rivets are not fixed, normal automatic rivet feeding cannot be achieved is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and more specifically, it relates to a nail feeding mechanism and an automatic rivet gun for an automatic rivet gun. Background Art

[0002] Rivet guns are used for fastening riveting in the manufacturing industries of various metal plates, pipes, etc., and are currently widely used in the riveting of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, and decoration. Rivet guns are developed to solve the disadvantages such as the easy melting of nuts and the easy slipping of internal threads during the welding of thin metal plates and thin pipes. When riveting, it does not require tapping internal threads, welding nuts, and has the advantages of firm riveting, high efficiency, and convenient and fast use.

[0003] However, during the automatic nail feeding process of the existing nail feeding structure for rivets, before loading the nails, the rivets are brought to a fully positioned and clamped state. As a result, during the automatic nail feeding process, due to the unfixed position of the automatically fed rivets, they cannot be accurately conveyed into the top cylinder of the rivet gun, resulting in the inability to perform normal automatic nail feeding and affecting its normal use. For this reason, we propose a new nail feeding mechanism and an automatic rivet gun for an automatic rivet gun. Summary of the Invention

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a nail feeding mechanism and an automatic rivet gun for an automatic rivet gun to solve the technical problems existing in the above background art.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A nail feeding mechanism for an automatic rivet gun includes: a fixing plate, a nail feeding pipe, a nail blocking module for receiving the rivets conveyed by the nail feeding pipe, a nail pressing module for cooperating with the nail blocking module to clamp the rivets on the nail blocking module, and a fixing seat; the nail feeding pipe is fixedly connected to the fixing seat, and its output end passes through the fixing seat and communicates with the nail blocking module; the fixing seat is fixedly connected to the fixing plate; the nail pressing module is fixedly installed on the fixing plate; the nail pressing module is installed on the fixing plate and is located in the gap between the fixing seat and the nail blocking module; a through hole for the riveting mechanism of the automatic rivet gun to pass through is provided at the bottom of the fixing seat.

[0006] Optionally, the nail blocking module includes: a finger cylinder, a lower guide block, an upper guide block, a nail feeding blocking block, a positioning block, a first nail feeding blocking block, a second nail feeding blocking block, a third nail feeding blocking block, and a fourth nail feeding blocking block; one side of the finger cylinder is fixedly connected to the fixing plate, and a first slide rail is arranged on the side away from the fixing plate; the lower guide block is slidably installed at the lower end of the slide rail and fixedly connected to the first output end of the finger cylinder; the positioning block is fixedly connected to the lower guide block; a receiving groove is arranged in the middle of the lower guide block; the first nail feeding blocking block is fixedly installed on one side of the upper end of the positioning block to block the receiving groove; a V-shaped groove adapted to the rivet is arranged on the other side of the upper end of the lower guide block; The upper guide block is slidably installed at the upper end of the first guide rail and fixedly connected to the second output end of the finger cylinder; the second nail feeding blocking block is fixedly connected to the upper guide block; an inclined upward feeding groove is arranged at the bottom of the second nail feeding blocking block; the third nail feeding blocking block is installed on one side of the lower end of the second nail feeding blocking block; a U-shaped groove communicating with the feeding groove is formed in the third nail feeding blocking block; a connecting portion is arranged on the fourth nail feeding blocking block; the fourth nail feeding blocking block is fixedly connected to the upper end of the second nail feeding blocking block through the connecting portion; the fourth nail feeding blocking block is slidably installed in the chute; a blanking channel is formed in the fourth nail feeding blocking block; the blanking channel can communicate with the blanking groove; clamping grooves are symmetrically arranged on the upper and lower sides of the blanking channel on the side of the third nail feeding blocking block close to the second nail feeding blocking block; a blanking hole is arranged on the fixed seat; the blanking channel, the blanking hole and the nail feeding pipeline are communicated.

[0007] Optionally, the nail pressing module includes: a driving cylinder and a pressing piece; two second slide rails are arranged at the lower ends on both sides of the chute on the fixed seat; the pressing piece is slidably connected to the two second slide rails through sliders respectively and is located in the gap between the second nail feeding blocking block and the fourth nail feeding blocking block; the driving cylinder is installed on the fixed seat, and its output end is fixedly connected to the pressing piece.

[0008] The present invention also discloses an automatic rivet gun, which includes the above-mentioned nail feeding mechanism.

[0009] Optionally, it includes: a handle and a riveting mechanism; the riveting mechanism is installed on the handle.

[0010] Optionally, the riveting mechanism includes: a first cylinder block, a second cylinder block, a cylinder seat, a gun barrel, a connecting rod, a vacuum tube, and a pull rod; the first cylinder block is installed on the handle; one end of the first cylinder block is provided with a telescopic piston and a gun core piston; one end of the gun barrel passes through one end of the cylinder block and is placed inside the first cylinder block, and is fixedly connected to the telescopic piston; the other end of the gun barrel is provided with a gun head top cylinder communicated with the gun barrel; the connecting rod is installed inside the gun barrel, and one end thereof is connected to one end of the pull rod; one end of the connecting rod close to the pull rod is fixedly connected to the gun core piston; the other end of the connecting rod is provided with a claw sleeve; A limiting screw, a spring, and a support cylinder are arranged inside the claw sleeve; the limiting screw is fixedly arranged at one end of the claw sleeve close to the connecting rod; a receiving groove is arranged on the limiting screw; the spring is placed in the receiving groove; the support cylinder is installed inside the claw sleeve and at the end far from the connecting rod; one end of the support cylinder abuts against the spring; the other end is provided with three claw pieces which are arranged at intervals to cooperate with the claw sleeve to clamp the rivet tail; one ends of the three claw pieces respectively abut against the support cylinder, and the other ends pass through the claw sleeve and can abut against the gun head top cylinder; the vacuum tube is installed on the inner wall of the connecting rod, and its feeding end passes through the limiting screw and is communicated with the gun head top cylinder through the claw sleeve; The other end of the first cylinder block is fixedly connected to the second cylinder block through the cylinder seat; a receiving cavity is arranged inside the cylinder seat; a top piston is arranged inside the receiving cavity; an oil delivery pipeline is arranged on the cylinder seat; a hydraulic piston is arranged inside the second cylinder block; the other end of the pull rod sequentially passes through the top piston and the cylinder seat and is fixedly connected to the hydraulic piston; a through hole is arranged along the length direction of the pull rod; the through hole is communicated with the vacuum tube; an internal oil circuit is arranged on the handle; the internal oil circuit is communicated with the second cylinder block through the oil delivery pipeline.

[0011] Optionally, it further includes a vacuum module: the vacuum module includes a vacuum generator and a vacuum sleeve; the vacuum generator is installed on the hydraulic piston, and its air inlet end is communicated with the through hole on the pull rod; the vacuum sleeve is fixedly connected to the vacuum generator; the input end of the vacuum generator is communicated with the output end of the vacuum sleeve of the vacuum generator, and its output end can pass through the second cylinder block and be placed outside the second cylinder block.

[0012] Optionally, at least one braking module for limiting the telescopic piston is arranged on the outer side of the end of the first cylinder block far from the second cylinder block.

[0013] Optionally, the brake module includes: a piston cylinder and a brake piston for limiting the telescopic piston; the piston cylinder is installed outside the first cylinder block, and the brake piston is slidably installed in the piston cylinder and its output end passes through the outer wall of the first cylinder block and is placed inside the first cylinder block.

[0014] Optionally, a trigger is provided on the handle.

[0015] The overall structure of the present invention is stable and easy to install. The rivet is pressed and limited by the nail blocking module and the pressing module, so that the automatic rivet gun can perform accurate nail driving operations, avoiding the situation where the automatic nail driving cannot be carried out normally due to the unfixed position of the rivet in the past. Description of the Drawings

[0016] Figure 1 is the assembly drawing of the nail driving mechanism of the present invention; Figure 2 is Figure 1 the cross-sectional view of Figure 3 is the structural schematic diagram of the nail blocking module and the fixing plate in the present invention; Figure 4 is the mechanism schematic diagram of the pressing module and the nail blocking module in the present invention; Figure 5 is the structural schematic diagram of the automatic rivet gun in the present invention Figure 6 is Figure 5 the cross-sectional view of

[0017] In the figure: 1, fixing plate; 2, nail feeding pipeline; 3, nail blocking module; 301, finger cylinder; 302, lower guide block; 303, upper guide block; 304, first nail feeding block; 305, positioning block; 306, second nail feeding block; 307, third nail feeding block; 308, fourth nail feeding block; 309, blanking channel; 310, feeding groove; 311, V-shaped groove; 4, nail pressing module; 401, driving cylinder; 402, pressing piece; 5, fixed seat; 6, blanking hole; 7, riveting mechanism; 701, first cylinder block; 702, second cylinder block; 703, cylinder seat; 704, gun barrel; 705, connecting rod; 706, vacuum tube; 707, pull rod; 708, telescopic piston; 709, gun core piston; 710, gun head cylinder; 711, claw sleeve; 712, limit screw; 713, spring; 714, support cylinder; 715, claw piece; 716, ejecting piston; 717, built-in oil circuit; 718, vacuum generator; 719, vacuum sleeve; 720, brake module; 721, trigger; 722, oil delivery pipeline; 723, hydraulic piston; 8, rivet; 9, handle. Detailed Embodiments

[0018] To make the objectives, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0019] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0020] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature. Terms such as "vertical", "horizontal", "left", "right", "up", "down", and similar expressions are only for the purpose of illustration and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0021] The following describes the present invention in detail with reference to the accompanying drawings and embodiments.

[0022] The present invention provides a nail feeding mechanism for an automatic rivet gun, as Figures 1-4As shown in the figure, it includes: a fixing plate 1, a nail feeding pipe 2, a nail blocking module 3 for receiving the rivets 8 conveyed by the nail feeding pipe 2, a nail pressing module 4 for cooperating with the nail blocking module 3 to clamp the rivets 8 on the nail blocking module 3, and a fixing base 5; the nail feeding pipe 2 is fixedly connected to the fixing base 5, and its output end passes through the fixing base 5 and communicates with the nail blocking module; the fixing base 5 is fixedly connected to the fixing plate 1; the nail pressing module 4 is fixedly installed on the fixing plate 1; the nail pressing module 4 is installed on the fixing plate 1 and is located in the gap between the fixing base 5 and the nail blocking module 3; a through hole for the riveting mechanism 7 of the rivet gun to pass through is provided at the bottom of the fixing base 5.

[0023] In this embodiment, the nail loading mechanism is connected to the automatic rivet gun through the fixing base 5, and the nail feeding pipe 2 can be made of a pipe fitting of plastic or metal material; during operation, the rivets 8 are conveyed through the nail feeding pipe 2, and after being fixed, they are conveyed to the working position of the nail blocking module 3, and then the pressing module is started to press and fix the conveyed rivets 8, so as to perform the nail loading operation on the automatic rivet gun; the overall structure is stable and easy to install, and the rivets 8 are pressed and limited by the nail blocking module 3 and the pressing module, so that the automatic rivet gun can perform accurate nail loading operation, avoiding the situation that the normal automatic nail loading cannot be carried out due to the unfixed position of the rivets 8 in the past.

[0024] Further, the nail blocking module 3 includes a finger cylinder 301, a lower guide block 302, an upper guide block 303, a nail feeding stopper, a positioning block 305, a first nail feeding stopper 304, a second nail feeding stopper 306, a third nail feeding stopper 307, and a fourth nail feeding stopper 308. One side of the finger cylinder 301 is fixedly connected to the fixed plate 1, and a first slide rail is provided on the side thereof away from the fixed plate 1. The lower guide block 302 is slidably installed at the lower end of the slide rail and is fixedly connected to the first output end of the finger cylinder 301. The positioning block 305 is fixedly connected to the lower guide block 302. A receiving groove is provided in the middle of the lower guide block 302. The first nail feeding stopper 304 is fixedly installed on one side of the upper end of the positioning block 305 to block the receiving groove. A V-shaped groove 311 adapted to the rivet 8 is provided on the other side of the upper end of the lower guide block 302. The upper guide block 303 is slidably installed at the upper end of the first guide rail and is fixedly connected to the second output end of the finger cylinder 301. The second nail feeding stopper 306 is fixedly connected to the upper guide block 303. An inclined upward feeding groove 310 is provided at the bottom of the second nail feeding stopper 306. The third nail feeding stopper is installed on one side of the lower end of the second nail feeding stopper 306. A U-shaped groove communicating with the feeding groove 310 is provided in the third nail feeding stopper 307. A connecting portion is provided on the fourth nail feeding stopper 308. The fourth nail feeding stopper 308 is fixedly connected to the upper end of the second nail feeding stopper 306 through the connecting portion. The fourth nail feeding stopper 308 is slidably installed in the chute. A blanking channel 309 is provided in the fourth nail feeding stopper 308. The blanking channel 309 can communicate with the blanking groove. Card slots are symmetrically provided on the upper and lower sides of the blanking channel 309 on the side of the third nail feeding stopper 307 close to the second nail feeding stopper 306. A blanking hole 6 is provided on the fixed seat 5. The blanking channel 309, the blanking hole 6, and the nail feeding pipe 2 are communicated with each other.

[0025] In this embodiment, the finger cylinder 301 is a mature technical product on the market and belongs to the prior art, so it will not be elaborated here. As Figures 1-4As shown, in the initial state (when automatic nailing is not required), the two output ends of the finger cylinder 301 are in an open state, and the upper guide block 303 and the lower guide are in the maximum block state. At this time, the blanking channel 309 of the fourth nail feeding block 308 connected to the second nail feeding block 306 is not communicated with the blanking port on the fixed seat 5; when automatic nailing is required, the rivet 8 is sent to the blanking hole 6 of the fixed seat 5 through the nail feeding pipe 2. At this time, the finger cylinder 301 is started, and the two output ends of the finger cylinder 301 seat retract, driving the upper guide block 303 and the lower guide block 302 to move relatively synchronously. During the downward movement of the upper guide block 303, the fourth nail feeding block 308 is driven to move downward through the second nail feeding block 306. During the downward movement of the fourth nail feeding block 308, when its blanking channel 309 is communicated with the blanking hole 6, the rivet 8 enters the blanking channel 309 of the fourth nail feeding block 308 through the blanking hole 6, and is sent into the feeding groove 310 on the second nail feeding block 306 through the blanking channel 309. Finally, the rivet 8 located in the feeding groove 310 falls onto the positioning block 305 under the cooperation of the U-shaped groove on the third nail feeding block 307. Finally, under the cooperation of the nail pressing module 4, the rivet 8 is pressed and limited in the V-shaped groove 311 of the positioning block 305; the overall structure is stable and the installation is convenient.

[0026] Further, the nail pressing module 4 includes a driving cylinder 401 and a pressing piece 402; two second slide rails are provided at the lower ends on both sides of the sliding groove on the fixed seat 5; the pressing piece 402 is slidably connected to the two second slide rails through sliders respectively, and is located in the gap between the second nail feeding block 306 and the fourth nail feeding block; the driving cylinder 401 is installed on the fixed seat 5, and its output end is fixedly connected to the pressing piece 402.

[0027] In this embodiment, as Figures 1-4 shown, the top of the pressing piece 402 is provided with an inverted V-shaped card slot; during the working process, the driving cylinder 401 is started, and the driving cylinder 401 drives the pressing piece 402 to move downward. During the downward movement of the pressing piece 402, the rivet 8 falling onto the positioning block 305 is limited and pressed, and finally the rivet 8 is pressed and limited in the V-shaped groove 311 of the positioning block 305, so as to perform accurate automatic nailing operation with an automatic rivet 8 gun.

[0028] The present invention also discloses an automatic rivet gun, which includes the above-mentioned nailing mechanism.

[0029] Optionally, it includes a handle 9 and a riveting mechanism 7; the riveting mechanism 7 is installed on the handle 9.

[0030] Optionally, the riveting mechanism 7 includes: a first cylinder block 701, a second cylinder block 702, a cylinder base 703, a barrel 704, a connecting rod 705, a vacuum tube 706, and a pull rod 707; the first cylinder block 701 is installed on the handle 9; one end of the first cylinder block 701 is provided with a telescopic piston 708 and a gun core piston 709; one end of the barrel 704 passes through one end of the cylinder block and is placed inside the first cylinder block 701, and is fixedly connected to the telescopic piston 708; the other end of the barrel 704 is provided with a gun head top cylinder 710 communicating with the barrel 704; the connecting rod 705 is installed inside the barrel 704, and one end thereof is connected to one end of the pull rod 707; one end of the connecting rod 705 close to the pull rod 707 is fixedly connected to the gun core piston 709; the other end of the connecting rod 705 is provided with a claw sleeve 711; inside the claw sleeve 711, there are provided a limit screw 712, a spring 713, and a support cylinder 714; the limit screw 712 is fixedly arranged at one end of the claw sleeve 711 close to the connecting rod 705; a receiving groove is provided on the limit screw; the spring 713 is received in the receiving groove; the support cylinder 714 is installed inside the claw sleeve 711 and at the end far from the connecting rod 705; one end of the support cylinder abuts against the spring 713; the other end is provided with three claw pieces 715 spaced from each other to cooperate with the claw sleeve 711 to clamp the tail of the rivet 8; one end of each of the three claw pieces 715 abuts against the support cylinder 714 respectively, and the other end passes through the claw sleeve 711 and can abut against the gun head top cylinder 710; the three claw pieces 715 are conical claw pieces 715, and cooperate with each other to form a conical chuck; the inner part of the claw sleeve close to the claw pieces 715 is provided with a conical hole position adapted to the conical chuck; the vacuum tube 706 is installed on the inner wall of the connecting rod 705, and its feeding end passes through the limit screw and communicates with the gun head top cylinder 710 through the claw sleeve 711; the other end of the first cylinder block 701 is fixedly connected to the second cylinder block through the cylinder base 703; a receiving cavity is provided inside the cylinder base 703; a top piston 716 is provided inside the receiving cavity; an oil delivery pipeline 722 is provided on the cylinder base 703; a hydraulic piston 723 is provided inside the second cylinder block 702; the other end of the pull rod 707 passes through the top piston 716 and the cylinder base 703 in sequence and is fixedly connected to the hydraulic piston 723; a through hole is provided along the length direction of the pull rod 707; the through hole communicates with the vacuum tube 706; an internal oil circuit 717 is provided on the handle 9; the internal oil circuit 717 communicates with the second cylinder block 702 through the oil delivery pipeline 722; a trigger 721 is provided on the handle 9; at least one brake module 720 for limiting the telescopic piston 708 is provided on the outer side of one end of the first cylinder block 701 far from the second cylinder block 702; Optionally, the brake module 720 includes: a piston cylinder and a brake piston for limiting the telescopic piston 708; the piston cylinder is installed outside the first cylinder block 701, and the brake piston is slidably installed in the piston cylinder and its output end passes through the outer wall of the first cylinder block 701 and is placed inside the first cylinder block 701; the piston cylinder is externally connected to a high-pressure air pipe.

[0031] In this embodiment, as Figures 5-6 shown, the trigger 721 on the handle 9 is provided with a trigger for controlling the pneumatic system and the hydraulic system of the rivet 8 gun to work; in the initial state, the three pawls 715 in the pawl sleeve 711 are in an open state so that the tail of the rivet 8 can enter the vacuum tube 706 after passing through the channel formed by the pawl sleeve 711 and the pawls 715; when automatic nailing is performed, the ejector piston 716 is ventilated and moves forward, pushing the gun core piston 709 and the telescopic piston 708 forward. Finally, the top cylinder 710 on the gun barrel 704 moves forward, and the tail of the rivet 8 that has been pressed and fixed by the automatic nailing mechanism is inserted into the middle of the top cylinder 710 on the gun head to achieve automatic nailing; during work, when the rivet 8 is automatically nailed through the automatic nailing mechanism and the tail of the rivet 8 is placed in the channel formed by the three pawls 715, pull the trigger 721. Through the trigger on the trigger 721, at this time, the piston cylinder on the outer wall of the first cylinder block 701 is ventilated, pushing the brake piston to perform a pushing action so that the brake piston limits the telescopic piston, and the brake piston catches the telescopic piston 708 to prevent it from retreating, providing support force when pulling the rivet; at the same time, the high-pressure hydraulic oil on the handle 9 is pushed into the second cylinder block 702 along the built-in oil path 717 to push the hydraulic piston 723 backward, and the hydraulic piston 723 pulls the gun core piston 709 backward through the pull rod 707; the gun core piston 709 assembly pulls the three claws backward; the three claws close and pull the tail of the rivet 8 backward, and finally break it to rivet the workpiece;; when the riveting is completed, Further, it further includes a vacuum module: the vacuum module includes a vacuum generator 718 and a vacuum sleeve 719; the vacuum generator 718 is installed on the hydraulic piston 723, and its air inlet end is communicated with the through hole on the pull rod 707; the vacuum sleeve 719 is fixedly connected to the vacuum generator 718; the input end of the vacuum generator 718 is communicated with the output end of the vacuum sleeve 719, and its output end can pass through the second cylinder block 702 and be placed outside the second cylinder block 702.

[0032] In this embodiment, as Figures 5-6As shown in the figure, the principle of the jet-type vacuum generator 718 is adopted, that is, the Laval nozzle principle is used to generate vacuum. A high-speed air flow is ejected backward to generate a vacuum suction force at the left end gun head; when the tail of the rivet 8 is inserted into the middle position of the gun head cylinder 710 at the top of the gun barrel 704, the vacuum generator 718 works synchronously. The vacuum generator 718 generates a vacuum suction force at the gun head. After the tail of the rivet 8 is broken, the hydraulic piston 723 resets, the gun core piston 709 assembly moves forward, and the three pawls 715 press on the conical surface at the tail of the gun head cylinder 710 to open. The broken nail rod is sucked away by the vacuum suction force and shoots out from the back along the passage of the gun center vacuum tube 706.

[0033] The beneficial effects of the present invention are as follows: The overall structure is stable and easy to install. The rivet 8 is tightened and limited by the nail blocking module 3 and the pressing module, so as to facilitate the accurate nail feeding operation of the automatic rivet 8 gun and avoid the situation where the automatic nail feeding cannot be carried out normally due to the unfixed position of the rivet 8 in the past.

[0034] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A nailing mechanism of an automatic rivet gun, characterized in that: include: A fixed plate, a nail feeding pipe, a nail blocking module for receiving rivets transported by the nail feeding pipe, a nail pressing module for cooperating with the nail blocking module to clamp the rivets on the nail blocking module, and a fixed seat; the nail feeding pipe is fixedly connected to the fixed seat, and its output end is connected with the nail blocking module after passing through the fixed seat; the fixed seat is fixedly connected to the fixed plate; the nail pressing module is fixedly installed on the fixed plate; the nail pressing module is installed on the fixed plate and is located in the gap between the fixed seat and the nail blocking module; the bottom of the fixed seat is provided with a through hole for the rivet pulling mechanism of an automatic rivet gun to pass through.

2. The nailing mechanism of the automatic rivet gun according to claim 1 is characterized in that: The nail blocking module includes: a finger cylinder, a lower guide block, an upper guide block, a nail feeding block, a positioning block, a first nail feeding block, a second nail feeding block, a third nail feeding block, and a fourth nail feeding block; one side of the finger cylinder is fixedly connected to the fixed plate, and a first slide rail is provided on the side away from the fixed plate; the lower guide block is slidably mounted on the lower end of the slide rail and is fixedly connected to the first output end of the finger cylinder; the positioning block is fixedly connected to the lower guide block; a receiving groove is provided in the middle part of the lower guide block; the first nail feeding block is fixedly mounted on one side of the upper end of the positioning block to block the receiving groove; the other side of the upper end of the lower guide block is provided with a V-shaped groove adapted to the rivet; The upper guide block is slidably mounted on the upper end of the first guide rail and is fixedly connected to the second output end of the finger cylinder; the second nail feeding block is fixedly connected to the upper guide block; a feeding trough inclined upward is provided at the bottom of the second nail feeding block; The third nail feeding block is installed on one side of the lower end of the second nail feeding block; the third nail feeding block is provided with a U-shaped groove connected with the feeding trough; the fourth nail feeding block is provided with a connecting portion; the fourth nail feeding block is fixedly connected to the upper end of the second nail feeding block through the connecting portion; the fourth nail feeding block can be slidably installed in the slide groove; the fourth nail feeding block is provided with a blanking channel; the blanking channel can be connected with the blanking trough; card slots are symmetrically arranged on one side of the third nail feeding block close to the second nail feeding block and on the upper and lower sides of the blanking channel; a blanking hole is arranged on the fixed seat; the blanking hole of the blanking channel is connected with the nail feeding pipe.

3. The nailing mechanism of the automatic rivet gun according to claim 2 is characterized in that: The nail pressing module includes: a driving cylinder and a pressing plate; two second slide rails are provided at the lower ends of the fixed seat on both sides of the slide groove; the pressing plate is slidably connected to the two second slide rails through sliders, and is located in the gap between the second nail feeding block and the fourth nail feeding block; the driving cylinder is installed on the fixed seat, and its output end is fixedly connected to the pressing plate.

4. An automatic rivet gun, characterized in that: It comprises the nailing mechanism described in any one of claims 1 to 4.

5. The automatic rivet gun according to claim 4, characterized in that: include: A handle and a riveting mechanism; the riveting mechanism is installed on the handle.

6. The automatic rivet gun according to claim 5, characterized in that: The riveting mechanism comprises: a first cylinder body, a second cylinder body, a cylinder seat, a gun barrel, a connecting rod, a vacuum tube, and a pull rod; the first cylinder body is installed on the handle; a telescopic piston and a gun core piston are arranged at one end of the first cylinder body; one end of the gun barrel passes through one end of the cylinder body and is placed in the first cylinder body, and is fixedly connected to the telescopic piston; a gun head top barrel connected to the gun barrel is arranged at the other end of the gun barrel; the connecting rod is installed in the gun barrel, and one end of the connecting rod is connected to one end of the pull rod; the end of the connecting rod close to the pull rod is fixedly connected to the gun core piston; the other end of the connecting rod is provided with a claw sleeve; A limit screw, a spring, and a support tube are arranged in the claw sleeve; the limit screw is fixedly arranged inside the claw sleeve near one end of the connecting rod; a receiving groove is arranged on the limit screw; the spring is received in the receiving groove; the support tube is installed in the claw sleeve and away from one end of the connecting rod; one end of the support tube abuts against the spring; the other end is provided with three claw pieces arranged at intervals from each other to cooperate with the claw sleeve to clamp the rivet tail; one end of the three claw pieces abuts against the support tube respectively, and the other end can abut against the top tube of the gun head after passing through the claw sleeve; the vacuum tube is installed on the inner wall of the connecting rod, and its feeding end passes through the limit screw and is connected with the top tube of the gun head through the claw sleeve; The other end of the first cylinder body is fixedly connected to the second cylinder body through the cylinder base; a containing cavity is provided in the cylinder base; an ejection piston is provided in the containing cavity; an oil pipeline is provided on the cylinder base; a hydraulic piston is provided in the second cylinder body; the other end of the pull rod passes through the ejection piston and the cylinder base in sequence and is fixedly connected to the hydraulic piston; a through hole is provided along the length direction of the pull rod; the through hole is connected to the vacuum tube; a built-in oil circuit is provided on the handle; the built-in oil circuit is connected to the second cylinder body through the oil pipeline.

7. The automatic rivet gun according to claim 6, characterized in that: It also includes a vacuum module: the vacuum module includes a vacuum generator and a vacuum sleeve; the vacuum generator is installed on the hydraulic piston, and its air inlet end is connected to the through hole on the pull rod; the vacuum sleeve is fixedly connected to the vacuum generator; the input end of the vacuum generator is connected to the output end of the vacuum sleeve, and its output end can pass through the second cylinder body and be placed outside the second cylinder body.

8. The automatic rivet gun according to claim 6, characterized in that: At least one brake module for limiting the telescopic piston is arranged on the outer side of one end of the first cylinder body away from the second cylinder body.

9. The automatic rivet gun according to claim 8, characterized in that: The brake module includes: a piston cylinder, and a brake piston for limiting the telescopic piston; the piston cylinder is installed on the outside of the first cylinder body, the brake piston is slidably installed in the piston cylinder and its output end passes through the outer wall of the first cylinder body and is placed in the first cylinder body.

10. The automatic rivet gun according to claim 5, characterized in that: A trigger is arranged on the handle.

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