Full-automatic equipment for riveting nut on iron pipe

Abstract

The present application relates to the technical field of automation assembly, in particular to a full-automatic iron pipe and nut riveting equipment, comprising a machine body, a pipe feeding part, a first pipe positioning work station, a second pipe positioning work station and a pipe discharging part are installed on the machine body, and the pipe feeding part, the first pipe positioning work station, the second pipe positioning work station and the pipe discharging part are distributed at equal distances in sequence; a pipe stepping transfer mechanism for transferring the pipe from the pipe feeding part to the first pipe positioning work station, the second pipe positioning work station and the pipe discharging part in sequence is also installed on the machine body; the full-automatic riveting and pressing assembly operation of the pipe and the nut can be realized, and the traditional manual assembly operation of the pipe and the nut is replaced, so that the full-automatic iron pipe and nut riveting equipment provided by the technical scheme can greatly reduce the labor cost and improve the working efficiency of the pipe and nut riveting.

Description

Technical Field

[0001] This invention relates to the field of automated assembly technology, and in particular to a fully automated device for riveting nuts onto iron pipes. Background Technology

[0002] In order to place more items more neatly within a limited space, or to provide space for storing items, more and more people are using rigid pipes to build support structures in indoor production areas such as homes, offices, and workshops, as well as some special outdoor production areas. Examples include shoe racks, storage wardrobes, bookshelves, and shelves. Building such support structures with pipes not only facilitates transportation for producers, but also makes the constructed support structures easy to disassemble and move, bringing convenience to both manufacturers and users.

[0003] Currently, the manufacturing of such rigid pipe fittings involves a structure where one end of the fitting needs to be capped with a nut. Traditional manufacturing processes generally employ semi-automated operations, which involve placing the nut on the end of the fitting and then positioning the fitting with the nut on the corresponding riveting equipment for riveting. This process requires a large amount of manual labor to achieve large-scale production, resulting in high labor costs. Therefore, it is necessary to propose a new technical solution to address the aforementioned problems. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0005] A fully automated device for riveting nuts onto iron pipes includes a machine body, on which are mounted a pipe fitting feeding section, a first positioning pipe fitting station, a second positioning pipe fitting station, and a pipe fitting discharging section, which are arranged at equal intervals. The machine body is also equipped with a pipe fitting stepping conveying mechanism for sequentially transferring the pipe fitting from the pipe fitting feeding section to the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharging section.

[0006] The machine body is also equipped with a pipe fitting directional feeding mechanism, a nut directional feeding mechanism, a nut-to-pipe fitting mechanism, and a pipe fitting-nut riveting mechanism. The pipe fitting directional feeding mechanism is used to stack pipe fittings and transfer the stacked pipe fittings one by one to the pipe fitting feeding position. The nut directional feeding mechanism is provided with a nut placement position for orienting the nuts and a vibrating disc unit that supplies orienting nuts along the nut placement position. The nut placement position is located next to the first positioning pipe fitting station and is mated with the pipe fitting at the first positioning pipe fitting station. The nut-to-pipe fitting mechanism is used to push the nuts on the nut placement position to the pipe fitting mated with the first positioning pipe fitting station. The pipe fitting-nut riveting mechanism is provided with a riveting port that can move to the side of the second positioning pipe fitting station. The riveting port is used to rivet the end of the pipe fitting with the nut mated with it, so that the nut is riveted and fixed to the pipe fitting. When the riveting port moves to the side of the second positioning pipe fitting station, the pipe fitting with the nut mated with it placed at the second positioning pipe fitting station is mated with the riveting port.

[0007] Preferably, the pipe fitting feeding section, the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharging section are each provided with two lifting sections for supporting the pipe fittings, and the pipe fitting stepping conveying mechanism is located between the two lifting sections; the pipe fitting stepping conveying mechanism includes a linear module, a lifting mechanism powered by the linear module, and a picking rack powered by the lifting mechanism; the linear module is arranged along the pipe fitting feeding section, the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharging section, and the picking rack is provided with three sets of pipe fitting picking and placing groups arranged at equal intervals, the pipe fitting picking and placing groups are used to lift and grab the pipe fittings erected on the two lifting sections or to lower and place the pipe fittings on the two lifting sections; the three sets of pipe fitting picking and placing groups are sequentially connected to the pipe fitting feeding section, the first positioning pipe fitting station, and the second positioning pipe fitting station, or the three sets of pipe fitting picking and placing groups are sequentially connected to the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharging section.

[0008] Preferably, the pipe fitting pick-and-place assembly includes two pipe fitting docking seats disposed on the pick-and-place rack, and a first arc-shaped surface for gripping the pipe fitting is provided at the upper end of the pipe fitting docking seat.

[0009] Preferably, the pipe fitting directional feeding mechanism has a receiving bin for stacking pipe fittings. The receiving bin is inclined downward along the front end. A discharge port for the pipe fittings to roll out is provided at the lower front end of the receiving bin, and the discharge port is connected to the pipe fitting feeding part. A special-shaped roller with a motor is provided at the discharge port. The special-shaped roller is used to clear the pipe fittings at the discharge port.

[0010] Preferably, the cross-section of the irregularly shaped roller is polygonal.

[0011] Preferably, the raised part of the pipe fitting feeding section is provided with a blocking part for blocking the pipe fitting rolling out of the discharge port.

[0012] Preferably, the second positioning pipe fitting station has a chamfered portion for restricting the end of the pipe fitting on one of its raised parts, a clamping cylinder for clamping the pipe fitting on the other raised part of the second positioning pipe fitting station, and a second arc-shaped portion for positioning the pipe fitting on the other raised part of the second positioning pipe fitting station.

[0013] Preferably, the vibratory feeder unit includes a vibratory feeder body mounted on the machine body, a linear feeding trough connecting the vibratory feeder body and the nut placement part, and a baffle cylinder mounted on the machine body and acting on the discharge end of the linear feeding trough; the nut connecting pipe fitting mechanism has a nut transverse conveying mechanism, a nut front support cylinder and a nut rear clamping cylinder, the nut placement part is mounted on the power end of the nut transverse conveying mechanism, and the nut front support cylinder and the nut rear clamping cylinder are respectively located at the front and rear positions of the nut placement part.

[0014] Preferably, the pipe fitting nut riveting mechanism includes a power moving frame, a riveting seat fixedly connected to the power moving frame, four riveting slide rails fixedly connected to the power moving frame and respectively arranged around the riveting seat, a riveting slider slidably connected to each riveting slide rail, a riveting component fixedly connected to each riveting slider, two riveting cylinders fixedly connected to the power moving frame and respectively located above and below the riveting seat, a push block connected to the piston end of each riveting cylinder, and two riveting wheels with a rotating shaft connected to each push block; wherein, the riveting opening is opened on the riveting seat, and the riveting component includes a push block fixedly connected to the riveting slider and a riveting head connected to the push block and movably extending into the riveting opening along the riveting seat; the riveting wheel acts on the push block, causing the push block to move along the riveting slide rail by the drive of the riveting wheel.

[0015] Preferably, the upper ends of the two raised sections of the pipe fitting discharge section are inclined surfaces that guide the pipe fitting to roll out of the machine body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This technology enables fully automated riveting and assembly of pipe fittings and nuts, replacing the traditional manual assembly process. The fully automated equipment for riveting iron pipes and nuts provided by this solution significantly reduces labor costs and improves the efficiency of pipe fitting and nut riveting. Furthermore, the use of a pipe fitting stepping conveyor mechanism to synchronously move the pipe fittings from the feeding section, the first positioning station, and the second positioning station allows for simultaneous feeding, docking, and riveting of pipe fittings and nuts, further increasing the working speed of riveting pipe fittings.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0021] Figure 2 This is a schematic diagram of the structure of the present invention, which removes the nut directional feeding mechanism, the nut connecting pipe fitting mechanism, and the pipe fitting nut riveting mechanism;

[0022] Figure 3 This is a schematic diagram of the pipe fitting directional feeding mechanism in this invention;

[0023] Figure 4 This is a schematic diagram of the pipe fitting stepping and conveying mechanism and the structure of each placed pipe fitting in this invention;

[0024] Figure 5 This is a schematic diagram of the pipe fitting handling assembly in this invention;

[0025] Figure 6 This is a schematic diagram of the structure of the nut directional feeding mechanism and the nut connecting pipe fitting mechanism in this invention;

[0026] Figure 7 This is a schematic diagram of the structure of the nut placement part, the nut front support cylinder and the nut rear clamping cylinder in this invention;

[0027] Figure 8 This is a schematic diagram of the pipe fitting nut riveting mechanism in this invention;

[0028] Figure 9 This is a front view of the pipe fitting nut riveting mechanism of the present invention after removing the power moving frame and the riveting cylinder.

[0029] The reference numerals and names in the figure are as follows:

[0030] 1. Riveting end; 2. Threaded end; 3. Retaining ring; 10. Machine body; 11. Pipe fitting feeding part; 12. First positioning pipe fitting station; 13. Second positioning pipe fitting station; 14. Pipe fitting discharge part; 15. Lifting part; 151. Blocking part; 152. Chamfered part; 153. Clamping cylinder; 154. Second arc-shaped part; 20. Pipe fitting stepping conveying mechanism; 21. Linear module; 22. Lifting mechanism; 23. Picking rack; 24. Pipe fitting picking and placing group; 241. Pipe fitting docking seat; 242. First arc-shaped part; 30. Pipe fitting directional feeding mechanism; 31. Receiving bin; 32. Discharge port; 33. Irregular roller. 3. Nut directional feeding mechanism 40, nut placement position 41, vibratory feeder unit 42, vibratory feeder body 421, linear feeding trough 422, material blocking cylinder 423, nut connecting pipe fitting mechanism 50, nut transverse conveying mechanism 51, nut front support cylinder 52, nut rear clamping cylinder 53, pipe fitting nut riveting mechanism 60, power moving frame 61, riveting seat 62, riveting slide rail 63, riveting slider 64, riveting part 65, push block 651, riveting head 652, riveting cylinder 66, push block 67, riveting wheel 68, riveting port 69. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-9 In this embodiment of the invention, a fully automated device for riveting iron pipe nuts includes a machine body 10. A pipe feeding section 11, a first positioning pipe station 12, a second positioning pipe station 13, and a pipe discharge section 14 are installed on the machine body 10, and these sections are distributed at equal distances. The machine body 10 is also equipped with a pipe feeding stepping mechanism 20 for sequentially transferring pipes from the pipe feeding section 11 to the first positioning pipe station 12, the second positioning pipe station 13, and the pipe discharge section 14.

[0033] The machine body 10 is also equipped with a pipe fitting directional feeding mechanism 30, a nut directional feeding mechanism 40, a nut-connecting pipe fitting mechanism 50, and a pipe fitting and nut riveting mechanism 60. The pipe fitting directional feeding mechanism 30 is used to stack pipe fittings and transfer the stacked pipe fittings one by one to the pipe fitting feeding part 11. The nut directional feeding mechanism 40 is provided with a nut placement part 41 for orienting the nuts and a vibrating plate unit 42 for supplying orienting nuts along the nut placement part 41. The nut placement part 41 is located next to the first positioning pipe fitting station 12 and is adjacent to the first positioning pipe fitting station 12. The pipe fittings on the 2nd position are connected and mated. The nut-connecting pipe fitting mechanism 50 is used to push the nut on the nut placement part 41 to connect with the pipe fitting on the first positioning pipe fitting station 12. The pipe fitting nut riveting mechanism 60 is provided with a riveting port 69 that can move to the side of the second positioning pipe fitting station 13. The riveting port 69 is used to rivet the end of the pipe fitting with the nut connected, so that the nut is riveted and fixed on the pipe fitting. When the riveting port 69 moves to the side of the second positioning pipe fitting station 13, the pipe fitting with the nut placed on the second positioning pipe fitting station 13 connects with the riveting port 69.

[0034] In the above technical solution, by utilizing the operation of step-type pipe fitting transfer, a combination of pipe fitting feeding section 11, first positioning pipe fitting station 12, second positioning pipe fitting station 13, pipe fitting discharging section 14, and pipe fitting step-transfer mechanism 20 is adopted to form a device that can automatically combine pipe fitting directional feeding mechanism 30, nut-connecting pipe fitting mechanism 50, and pipe fitting nut riveting mechanism 60. By placing the pipe fitting and nut to be riveted in the pipe fitting directional feeding mechanism 30 and nut directional feeding mechanism 40 respectively in advance, the pipe fitting step-transfer mechanism 20 provides the pipe fitting directional feeding mechanism 30 to the pipe fitting feeding section 11. The pipe fitting is transferred to the first positioning pipe fitting station 12. Then, the nut placed on the nut placement part 41 is pushed to the pipe fitting by the nut-connecting pipe fitting mechanism 50. After the pipe fitting and nut are connected, the pipe fitting is transferred to the second positioning pipe fitting station 13 by the pipe fitting stepping conveying mechanism 20. Then, the pipe fitting nut riveting mechanism 60 moves the riveting port 69 to the pipe fitting with the connected nut and applies a riveting action to the pipe fitting so that the nut is riveted to the pipe fitting, thus completing the riveting operation of the pipe fitting and nut. After the riveting is completed, the pipe fitting is finally transported to the pipe fitting discharge part 14 for discharge by the pipe fitting stepping conveying mechanism 20.

[0035] This setup enables fully automated riveting and assembly of pipe fittings and nuts, replacing the traditional manual assembly process. The fully automated pipe riveting and nut assembly equipment provided by this technical solution significantly reduces labor costs and improves the efficiency of pipe fitting and nut riveting. Furthermore, the use of a pipe fitting stepping conveyor mechanism 20 to synchronously move the pipe fittings from the feeding section 11, the first positioning pipe fitting station 12, and the second positioning pipe fitting station 13 allows for simultaneous feeding of pipe fittings and nuts, docking of pipe fittings and nuts, and riveting of pipe fittings and nuts, further increasing the speed of pipe fitting riveting. The equipment also boasts high overall compactness and low manufacturing cost.

[0036] Please see Figure 4-5 In this embodiment, the pipe fitting feeding section 11, the first positioning pipe fitting station 12, the second positioning pipe fitting station 13, and the pipe fitting discharging section 14 are each provided with two lifting sections 15 for supporting the pipe fittings. The pipe fitting stepping and conveying mechanism 20 is located between the two lifting sections 15. The pipe fitting stepping and conveying mechanism 20 includes a linear module 21, a lifting mechanism 22 powered by the linear module 21, and a material picking rack 23 powered by the lifting mechanism 22. The linear module 21 moves along the pipe fitting feeding section 11, the first positioning pipe fitting station 12, the second positioning pipe fitting station 13, and the second positioning pipe fitting station 14. The pipe fitting station 13 and the pipe fitting discharge section 14 are set up. The material picker 23 is equipped with three sets of pipe fitting pick-and-place groups 24 arranged at equal distances. The pipe fitting pick-and-place groups 24 are used to lift and grab the pipe fittings set on the two raised sections 15 or to drop and place the pipe fittings on the two raised sections 15. The three sets of pipe fitting pick-and-place groups 24 are connected to the pipe fitting supply section 11, the first positioning pipe fitting station 12 and the second positioning pipe fitting station 13 in sequence, or the three sets of pipe fitting pick-and-place groups 24 are connected to the first positioning pipe fitting station 12, the second positioning pipe fitting station 13 and the pipe fitting discharge section 14 in sequence.

[0037] This embodiment uses two lifting sections 15 to support two positions of the pipe fitting, thereby achieving the purpose of positioning the pipe fitting. How the lifting sections 15 position the pipe fitting depends on the needs of the processing stage. Positioning can be achieved by guiding the pipe fitting to the set position using a guide structure, clamping the pipe fitting with powered fixtures, or preventing positional displacement of the pipe fitting during processing using a blocking structure. The pipe fitting stepping and conveying mechanism 20 is arranged according to the position of the lifting sections 15 and mainly includes a horizontally movable linear module 21 and a vertically movable lifting mechanism 22. A material handling rack 23 is installed on the force mechanism. The lifting mechanism 22 moves up and down to pick up and place pipe fittings, and the linear module 21 moves the pipe fittings to be transferred. This structure is simple and can meet the requirements of synchronously picking up and placing pipe fittings at the pipe fitting feeding part 11, the first positioning pipe fitting station 12, the second positioning pipe fitting station 13, and the pipe fitting discharge part 14. The pipe fitting picking and placing group 24 includes two pipe fitting docking seats 241 installed on the material handling rack 23. The upper end of the pipe fitting docking seat 241 is provided with a first arc-shaped surface 242 for gripping the pipe fitting.

[0038] Please see Figure 2-3 In this embodiment, the pipe fitting directional feeding mechanism 30 has a receiving chamber 31 for stacking pipe fittings. The receiving chamber 31 can hold multiple pipe fittings in a stacked manner. The receiving chamber 31 is inclined downwards along its front end, and a discharge port 32 for the pipe fittings to roll out is provided at the lower front end of the receiving chamber 31. The discharge port 32 is connected to the pipe fitting feeding part 11. This method enables the pipe fittings to automatically roll out one by one without power. To prevent blockage at the discharge port 32 due to the accumulation of pipe fittings, therefore... A motor-driven irregularly shaped roller 33 is provided at the outlet 32 ​​to unclog the pipe at the outlet 32. Preferably, the cross-section of the irregularly shaped roller 33 is polygonal. Based on the pipe discharge method, the lifting part 15 on the pipe feeding part 11 is set so that the lifting part 15 on the pipe feeding part 11 is provided with a blocking part 151 to block the pipe rolling out of the outlet 32. After the pipe rolls out, it will be blocked by the blocking part 151, so as to automatically complete the operation of feeding the pipe one by one.

[0039] Please see Figure 4In this embodiment, one of the raised portions 15 of the first positioning pipe fitting station 12 and the second positioning pipe fitting station 13 is provided with a chamfered portion 152 for restricting the end of the pipe fitting, and the other raised portion 15 of the first positioning pipe fitting station 12 is provided with a clamping cylinder 153 for clamping the pipe fitting, and the other raised portion 15 of the second positioning pipe fitting station 13 is provided with a second arc-shaped portion 154 for positioning the pipe fitting. The clamping cylinder 153 is mainly provided to provide better force to the pipe fitting so that the pipe fitting can maintain stability during the process of the nut being connected to the pipe fitting. The riveting operation between the nut and the pipe fitting is performed along the side of the pipe fitting, so it is not necessary to firmly fix the pipe fitting. In addition, the upper ends of the two raised portions 15 of the pipe fitting discharge portion 14 are inclined surfaces that guide the pipe fitting to roll out of the machine body 10. A storage box can be placed next to the machine body 10 or connected to other conveying mechanisms to achieve the purpose of pipe fitting discharge.

[0040] Please see Figure 6-7 In this embodiment, the vibratory feeder unit 42 includes a vibratory feeder body 421 mounted on the machine body 10, a linear feeding trough 422 connecting the vibratory feeder body 421 and the nut placement part 41, and a baffle cylinder 423 mounted on the machine body 10 and acting on the discharge end of the linear feeding trough 422; the nut connecting pipe fitting mechanism 50 has a nut transverse conveying mechanism 51, a nut front support cylinder 52 and a nut rear pressing cylinder 53, the nut placement part 41 is mounted on the power end of the nut transverse conveying mechanism 51, and the nut front support cylinder 52 and the nut rear pressing cylinder 53 are respectively located at the front and rear positions of the nut placement part 41.

[0041] In this process, the nut is placed inside the vibratory feeder body 421, and the vibratory feeder body 421 directionally conveys the nut to the linear feeding trough 422. Then, the limiting cylinder 423 controls the nut to fall from the discharge end of the linear feeding trough 422 onto the nut placement position 41. After falling in, the nut is positioned on the nut placement position 41 by the cooperation of the front support cylinder 52 and the rear clamping cylinder 53. Subsequently, when the first positioning pipe fitting station 12 is placed... After the pipe fitting is in place, the nut transverse conveying mechanism 51 will drive the nut placement part 41, the nut front support cylinder 52, and the nut rear clamping cylinder 53 to move together toward the pipe fitting on the first positioning pipe fitting station 12. Since the nut has a threaded end 2 for connection and a riveting end 1 for riveting into the pipe fitting, and there is a retaining ring 3 between the threaded end 2 and the riveting end 1 to abut against the end of the pipe fitting, the nut placement part 41 is mainly positioned to position the retaining ring 3, which has a matching function to the retaining ring. The arc groove of ring 3 and the arc panel on the arc groove for supporting the riveting end 1. After the nut falls into the nut placement part 41, the rear nut pressing cylinder 53 operates, pressing the blocking ring 3 on the nut between the arc panel and the rear nut pressing cylinder 53. Before the nut falls in, the front nut support cylinder 52 is driven first, so that the riveting end 1 corresponding to the nut falling into the nut placement part 41 can be supported by the front nut support cylinder 52, preventing the nut from being riveted after falling in. The weight of end 1 causes it to flip and fall from the nut placement part 41. After the nut is pressed by the nut rear clamping cylinder 53, the nut front support cylinder 52 retracts, and the nut's rivet end 1 is exposed. When the nut transverse conveying mechanism 51 runs, it can push the nut's rivet end 1 into the pipe fitting, thereby completing the docking of the pipe fitting and the nut. This structure is ingeniously designed and can ensure that each nut can be stably docked with the pipe fitting, thereby achieving fully automated nut docking with pipe fitting operation.

[0042] Please see Figure 8-9In this embodiment, the pipe fitting nut riveting mechanism 60 includes a power moving frame 61, a riveting seat 62 fixedly connected to the power moving frame 61, four riveting slide rails 63 fixedly connected to the power moving frame 61 and respectively arranged around the riveting seat 62, a riveting slider 64 slidably connected to each riveting slide rail 63, a riveting component 65 fixedly connected to each riveting slider 64, two riveting cylinders 66 fixedly connected to the power moving frame 61 and respectively located above and below the riveting seat 62, and a pusher connected to the piston end of each riveting cylinder 66. The moving block 67 and two riveting rollers 68 connected to each pushing block 67 by a rotating shaft; wherein, the riveting opening 69 is opened on the riveting base 62, and the riveting component 65 includes a push block 651 fixedly connected to the riveting slider 64 and a riveting head 652 connected to the push block 651 and movably extending into the riveting opening 69 along the riveting base 62; the riveting rollers 68 act on the push block 651, causing the push block 651 to move along the riveting slide rail 63 driven by the riveting rollers 68; by using riveting heads 652 arranged around the riveting base 62, the riveting... The pressure head 652 is movably connected to the perimeter of the riveting seat 62 via the riveting slide rail 63 and the riveting slider 64. Then, through the combination of the riveting cylinder 66 and the riveting roller 68, four pushing blocks 67 are simultaneously moved by a downward pressing and rolling motion. This completes the operation of synchronously riveting four positions on the side of the pipe fitting by driving the pressure head 652. This operation is completed in one stroke by the riveting cylinder 66, thus achieving synchronous and rapid riveting of four points on the pipe fitting. The pipe fitting nut riveting mechanism 60 utilizes a power-driven moving frame 6... 1 drives its various components. When the pipe is not placed in the second positioning pipe station 13 or when the pipe on the second positioning pipe station 13 needs to be removed, the movement of the power moving frame 61 moves the riveting seat 62 away. When the pipe needs to be riveted, the riveting seat 62 is moved to connect with the pipe. The power moving frame 61 uses traditional cylinders, motors and other motors as power sources, or combines them with guide rails and other guiding mechanisms to achieve directional movement away from or towards the second positioning pipe station 13.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A fully automated device for riveting nuts onto iron pipes, comprising a machine body, characterized in that, The machine body is equipped with a pipe fitting feeding section, a first positioning pipe fitting station, a second positioning pipe fitting station, and a pipe fitting discharging section, which are distributed at equal intervals in sequence. The machine body is also equipped with a pipe fitting stepping conveying mechanism for sequentially transferring pipe fittings from the pipe fitting feeding section to the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharging section. The machine body is also equipped with a pipe fitting directional feeding mechanism, a nut directional feeding mechanism, a nut-connecting pipe fitting mechanism, and a pipe fitting and nut riveting mechanism. The pipe fitting directional feeding mechanism is used to stack pipe fittings and transfer the stacked pipe fittings one by one to the pipe fitting feeding position. The nut directional feeding mechanism is provided with a nut placement position for orienting the nuts and a vibrating disc unit that supplies orienting nuts along the nut placement position. The nut placement position is located next to the first positioning pipe fitting station and is connected to the pipe fitting at the first positioning pipe fitting station. The nut-connecting pipe fitting mechanism is used to push the nuts on the nut placement position to the pipe fitting connected to the first positioning pipe fitting station. The pipe fitting and nut riveting mechanism is provided with a riveting port that can move to the side of the second positioning pipe fitting station. The riveting port is used to rivet the end of the pipe fitting with the nut connected to it, so that the nut is riveted and fixed to the pipe fitting. When the riveting port moves to the side of the second positioning pipe fitting station, the pipe fitting with the nut connected to the second positioning pipe fitting station is connected to the riveting port. The pipe fitting feeding section, the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharge section are each equipped with two lifting sections to support the pipe fittings. A pipe fitting stepping and conveying mechanism is located between the two lifting sections. The pipe fitting stepping and conveying mechanism includes a linear module, a lifting mechanism powered by the linear module, and a picking rack powered by the lifting mechanism. The linear module is arranged along the pipe fitting feeding section, the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharge section. The picking rack is equipped with three sets of pipe fitting picking and placing groups arranged at equal intervals. The pipe fitting picking and placing groups are used to lift and grab the pipe fittings erected on the two lifting sections or to lower and place the pipe fittings on the two lifting sections. The three sets of pipe fitting picking and placing groups are connected to the pipe fitting feeding section, the first positioning pipe fitting station, and the second positioning pipe fitting station in sequence, or the three sets of pipe fitting picking and placing groups are connected to the first positioning pipe fitting station, the second positioning pipe fitting station, and the pipe fitting discharge section in sequence. The second positioning pipe fitting station is provided with a chamfered part for restricting the end of the pipe fitting on one of the raised parts of the second positioning pipe fitting station, a clamping cylinder for clamping the pipe fitting on the other raised part of the second positioning pipe fitting station, and a second arc-shaped part for positioning the pipe fitting on the other raised part of the second positioning pipe fitting station. The vibratory feeder unit includes a vibratory feeder body mounted on the machine body, a linear feeding chute connecting the vibratory feeder body and the nut placement part, and a baffle cylinder mounted on the machine body and acting on the discharge end of the linear feeding chute; the nut connecting pipe fitting mechanism has a nut transverse conveying mechanism, a nut front support cylinder and a nut rear clamping cylinder, the nut placement part is mounted on the power end of the nut transverse conveying mechanism, and the nut front support cylinder and the nut rear clamping cylinder are respectively located at the front and rear positions of the nut placement part; The pipe fitting nut riveting mechanism includes a power-moving frame, a riveting seat fixedly connected to the power-moving frame, four riveting slide rails fixedly connected to the power-moving frame and respectively arranged around the riveting seat, a riveting slider slidably connected to each riveting slide rail, a riveting component fixedly connected to each riveting slider, two riveting cylinders fixedly connected to the power-moving frame and respectively located above and below the riveting seat, a push block connected to the piston end of each riveting cylinder, and two riveting wheels with a rotating shaft connected to each push block; wherein, the riveting opening is opened on the riveting seat, and the riveting component includes a push block fixedly connected to the riveting slider and a riveting head connected to the push block and movably extending into the riveting opening along the riveting seat; the riveting wheel acts on the push block, causing the push block to move along the riveting slide rail by the drive of the riveting wheel.

2. The fully automated equipment for riveting nuts onto iron pipes according to claim 1, characterized in that, The pipe fitting pick-and-place assembly includes two pipe fitting docking seats set on the pick-and-place rack, and a first arc-shaped surface for gripping the pipe fitting is provided at the upper end of the pipe fitting docking seat.

3. The fully automated equipment for riveting nuts onto iron pipes according to claim 1, characterized in that, The pipe fitting directional feeding mechanism has a receiving bin for stacking pipe fittings. The receiving bin is inclined downward at the front end. A discharge port for the pipe fittings to roll out is provided at the lower front end of the receiving bin, and the discharge port is connected to the pipe fitting feeding part. A special-shaped roller with a motor is provided at the discharge port. The special-shaped roller is used to clear the pipe fittings at the discharge port.

4. The fully automated equipment for riveting nuts onto iron pipes according to claim 3, characterized in that, The cross-section of the irregularly shaped roller is polygonal.

5. The fully automated equipment for riveting nuts onto iron pipes according to claim 3, characterized in that, The raised part of the pipe fitting feeding section is equipped with a blocking part to block the pipe fitting rolling out of the discharge port.

6. The fully automated equipment for riveting nuts onto iron pipes according to claim 1, characterized in that, The upper ends of the two raised sections at the pipe fitting discharge point are inclined surfaces that guide the pipe fittings to roll out of the machine body.

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