Automatic rod piece hot riveting equipment and method

Abstract

The invention relates to the technical field of automatic riveting equipment, in particular to automatic rod piece hot riveting equipment and method, and the equipment comprises a walking trolley, a horizontal position adjusting mechanism, a rivet heating mechanism, a vertical position adjusting mechanism, a U-shaped frame, a riveting gun, a swing assembly, an ejector head assembly and a robot; the swinging assembly is used for driving the riveting gun to rotate; the ejector head assembly and the riveting gun are oppositely arranged. A rivet clamping jaw is arranged at the tail end of the robot and can clamp a heated rivet and place the rivet on the ejection head assembly, the ejection head assembly can eject the rivet into a riveting hole in a rod piece, and then the riveting gun is matched with the ejection head assembly to complete riveting. The number of operators can be reduced, and the operation efficiency, the operation quality and the operation safety are improved.

Description

Technical Field

[0001] This invention relates to the technical field of automatic riveting equipment, and specifically to an automatic hot riveting device and method for rods. Background Technology

[0002] Traditional riveting of rods mainly relies on manual operation. Specifically, one person heats the rivet to a set temperature, then passes it to another person to insert it into the hole. After the rivet passes through the hole, another person uses a jack to hold the bottom of the rivet in place, while a third person uses a rivet gun to rivet it in place. Ultimately, the riveting of a single rivet is completed with the cooperation of several people. However, the quality of manual riveting depends on the individual's experience, there are risks of burns from working at high temperatures, and manual operation is inefficient. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic hot riveting device and method for rods, which solves the problems of riveting quality relying on human experience, high-temperature operation risks, and low operation efficiency in the prior art of manual riveting operations.

[0004] The technical solution to achieve the above objectives is:

[0005] This invention provides an automatic hot riveting device for rods, comprising:

[0006] Walking cart;

[0007] A horizontal position adjustment mechanism is provided on the traveling trolley, and the horizontal position adjustment mechanism can be adjusted in the horizontal direction relative to the traveling trolley;

[0008] A rivet heating mechanism provided on the horizontal position adjustment mechanism is used to heat the rivet;

[0009] A vertical position adjustment mechanism is provided on the horizontal position adjustment mechanism, and the vertical position adjustment mechanism can be adjusted in the vertical direction relative to the horizontal position adjustment mechanism;

[0010] The U-shaped frame connected to the vertical position adjustment mechanism has a first connecting part and a second connecting part arranged opposite to each other;

[0011] A rivet gun mounted on the first connecting part;

[0012] A swing assembly disposed on the first connecting part and driven and connected to the rivet gun is used to drive the rivet gun to rotate;

[0013] A top head assembly is provided on the second connecting portion, and the top head assembly is disposed opposite to the rivet gun;

[0014] The robot is mounted on the horizontal position adjustment mechanism. The end of the robot is equipped with a rivet gripper. The rivet gripper can hold the rivet heated by the rivet heating mechanism and place the rivet on the top assembly. The top assembly can push the rivet into the riveting hole on the rod. Then, the rivet gun cooperates with the top assembly to complete the riveting of the rivet.

[0015] A further improvement of the automatic hot riveting rod device of the present invention is that the top head assembly includes a lifting drive member disposed on the second connecting part, a top head disposed on the driving end of the lifting drive member, a positioning sleeve sleeved on the top head, and a spring sleeved on the top head and located inside the positioning sleeve.

[0016] The top head is slidably disposed within the positioning sleeve, and the top head can be adjusted up and down within the positioning sleeve. The top surface of the top head has a bearing surface that is adapted to the head of the rivet.

[0017] The spring is connected to the top head, and the spring applies elastic force to the top head and the positioning sleeve so that the top head is located inside the positioning sleeve. When a rivet is placed on the top head, the upper part of the positioning sleeve can limit the rivet.

[0018] The lifting drive component is adjustable in height. The lifting drive component drives the top head to move upward, thereby moving the positioning sleeve upward together. When the positioning sleeve abuts against the surface of the rod, the top head can move upward relative to the positioning sleeve and push the rivet into the rivet hole on the rod.

[0019] A further improvement of the automatic hot riveting rod device of the present invention is that the second connecting part is further provided with a vision camera disposed near the top assembly and a camera cover disposed opposite to the vision camera;

[0020] The camera cover is slidably mounted on the second connecting part. The camera cover can be adjusted to a first position to cover the vision camera, and can also be adjusted to a second position to open the vision camera.

[0021] A further improvement of the automatic hot riveting rod device of the present invention is that a bracket is provided on the first connecting part corresponding to the rivet gun;

[0022] The swing assembly is mounted on the bracket, and the swing assembly is fixedly connected to the handle of the rivet gun via a fixed base;

[0023] The lower end of the rivet gun passes through the first connecting part and is detachably connected to a riveting die head. The rivet gun and the first connecting part are rotatably connected by a ball bearing.

[0024] A further improvement of the automatic hot riveting rod device of the present invention is that the swing assembly includes a drive motor mounted on the bracket, a rotating rod eccentrically connected to the motor shaft of the drive motor, a connecting column connected to the rotating rod, and a swing drive ring corresponding to the connecting column and connected to the bracket.

[0025] The fixing base is connected to the connecting column;

[0026] The drive motor can drive the rotating rod to rotate eccentrically, thereby causing the connecting column to rotate eccentrically as well. The swing drive ring can limit the eccentric rotation of the connecting column so that the connecting column can perform a swinging circular motion.

[0027] A further improvement of the automatic hot riveting rod device of the present invention is that the riveting die head is provided with an insertion groove corresponding to the lower end of the rivet gun;

[0028] The lower end of the rivet gun is provided with a matching connector, which can be inserted into the insertion slot, and the end of the connector and the bottom of the insertion slot are provided with magnets that attract each other.

[0029] The inner wall of the insertion slot is provided with a snap-fit ​​groove;

[0030] The side of the connector is provided with a telescopically adjustable locking steel post. When the connector is inserted into the insertion groove, the locking steel post extends into the snap-fit ​​groove, thereby connecting the rivet gun and the riveting die head.

[0031] A further improvement of the automatic hot riveting rod device of the present invention is that the rivet heating mechanism includes a heating box, a heating dry pot disposed on the heating box, and an ejector disposed on the heating box and located below the heating dry pot;

[0032] The heating dry pot is equipped with a segmented electromagnetic coil for gradient heating of the rivets inside the heating dry pot;

[0033] The ejector is adjustable in height and is used to eject the upper part of the rivet out of the heating dry pot after the rivet is heated so that the rivet gripper at the end of the robot can grasp it.

[0034] A further improvement of the automatic hot riveting rod device of the present invention is that a rotary drive mechanism is provided on the vertical position adjustment mechanism corresponding to the U-shaped frame. The rotary drive mechanism is drivenly connected to the U-shaped frame and is used to drive the U-shaped frame to a horizontal or vertical state.

[0035] A further improvement of the automatic hot riveting rod device of the present invention is that the horizontal position adjustment mechanism includes a first sliding plate slidably disposed on the traveling trolley, a first driving assembly disposed on the traveling trolley and drivenly connected to the first sliding plate, a second sliding plate slidably disposed on the first sliding plate, and a second driving assembly disposed on the first sliding plate and drivenly connected to the second sliding plate.

[0036] The first drive component can drive the first sliding plate to slide along a first direction on the traveling trolley;

[0037] The second drive component can drive the second slide plate to slide on the first slide plate along a second direction perpendicular to the first direction.

[0038] The present invention also provides a method for automatically hot riveting rods, comprising the following steps:

[0039] An automatic hot riveting rod assembly device is provided, which is moved to the rod assembly to be riveted by a traveling trolley.

[0040] Adjust the position of the automatic hot riveting equipment so that the first and second connecting parts of the U-shaped frame are located on both sides of the riveting hole on the rod to be riveted;

[0041] The position of the U-shaped frame is adjusted by the horizontal position adjustment mechanism so that the rivet gun and the top head assembly are aligned with the corresponding rivet holes;

[0042] The rivet heating mechanism is activated to heat the rivet. After the rivet reaches the set temperature, the heated rivet is picked up by the rivet gripper on the robot and placed on the top assembly.

[0043] The top assembly is lifted upward to push the rivet into the corresponding riveting hole;

[0044] The rivet gun moves downward to press against the end of the rivet. After pressing the end of the rivet into place, the swing assembly is activated to make the rivet gun rotate, thereby completing the riveting of the rivet.

[0045] The beneficial effects of the automatic hot riveting equipment and method for rods of the present invention include:

[0046] The automatic hot riveting rod equipment of the present invention can realize automatic hot riveting operation, reduce the number of operators, and can be operated by only one person, which can significantly improve work efficiency, work quality and work safety.

[0047] The automatic hot riveting rod equipment of the present invention will significantly improve work efficiency, work quality and production safety through automation and digital intelligence technology, and can promote the progress of related industries.

[0048] The automatic hot riveting rod equipment of the present invention integrates automatic feeding, positioning, heating and riveting processes, which can reduce the number of operators. Traditional manual operation requires several people to cooperate, while this equipment can be operated by one person, which can significantly improve production efficiency.

[0049] The automatic hot riveting rod equipment of the present invention has continuous operation capability, supports 24-hour uninterrupted production, and reduces downtime caused by manual shift changes and fatigue.

[0050] The automatic hot riveting rod equipment of the present invention has the ability to quickly change types. Through modular design and preset parameter library, it can quickly switch the riveting task of rods of different specifications and adapt to the riveting needs of rods of different specifications.

[0051] The automatic hot riveting equipment for rods of this invention can improve the consistency of riveting quality. It adopts high-precision sensors and a closed-loop control system to monitor and adjust key parameters such as temperature, pressure, and time in real time, avoiding manual operation. The positioning of the robot and vision camera can ensure the alignment accuracy of the rods, eliminating the phenomenon of not being able to insert the rivet into the riveting hole in time due to the deviation of traditional manual positioning.

[0052] The automatic hot riveting rod device of the present invention uses high-temperature resistant material for the rivet clamps to solve the problem of high-temperature clamping stability.

[0053] The automatic hot riveting rod equipment of the present invention uses a hydraulic locking method between the rivet mold head and the rivet gun, which breaks through the traditional mechanical locking and can significantly improve the changeover efficiency and reliability.

[0054] The automatic hot riveting rod device of the present invention has a rivet heating mechanism that can detect the size and specifications of the rivet, control the heating temperature and heating time, optimize the heat energy distribution, improve the mechanical properties of the joint, and save energy.

[0055] The automatic hot riveting rod equipment of the present invention can save labor costs. A single machine can replace 3-5 skilled workers. Long-term use can significantly reduce reliance on manual labor, especially with obvious advantages in the context of rising labor costs. Attached Figure Description

[0056] Figure 1 This is a three-dimensional structural diagram of the automatic hot riveting rod device of the present invention.

[0057] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0058] Figure 3 This is a side view of the automatic hot riveting rod device of the present invention.

[0059] Figure 4 This is a schematic diagram showing the connection between the horizontal position adjustment mechanism, the vertical position adjustment mechanism, the rivet heating mechanism, and the rotary drive mechanism in the automatic hot riveting rod device of the present invention.

[0060] Figure 5 This is a three-dimensional structural diagram showing the connection between the horizontal position adjustment mechanism and the vertical position adjustment mechanism in the automatic hot riveting rod device of the present invention.

[0061] Figure 6 This is a side view of the connection between the horizontal position adjustment mechanism and the vertical position adjustment mechanism in the automatic hot riveting rod device of the present invention.

[0062] Figure 7 This is a schematic diagram of the rivet heating mechanism in the automatic hot riveting rod device of the present invention.

[0063] Figure 8 This is a schematic diagram of the connection between the U-shaped frame, rivet gun, swing assembly, and top assembly in the automatic hot riveting rod equipment of the present invention.

[0064] Figure 9 for Figure 8 Side view of the structure shown.

[0065] Figure 10 This is a three-dimensional structural diagram of the connection between the rivet gun and the swing assembly in the automatic hot riveting rod device of the present invention.

[0066] Figure 11 for Figure 10 A side view of the structure shown.

[0067] Figure 12 for Figure 10 Another side view of the structure shown.

[0068] Figure 13 This is a three-dimensional structural diagram of the connection between the rivet gun and the riveting mold in the automatic hot riveting rod equipment of the present invention.

[0069] Figure 14 This is a partial cross-sectional view of the connection between the rivet gun and the riveting mold in the automatic hot riveting rod equipment of the present invention.

[0070] Figure 15 for Figure 14 A magnified view of a portion of point B in the middle.

[0071] Figure 16 This is a schematic diagram of the top assembly and camera cover in the automatic hot riveting rod device of the present invention.

[0072] Figure 17 This is a cross-sectional view of the positioning sleeve on the top assembly in the automatic hot riveting rod device of the present invention. Detailed Implementation

[0073] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0074] See Figure 1 This invention provides an automatic hot riveting device for rods, which can automatically hot rivet rods, improving the efficiency and quality of riveting operations. The automatic hot riveting device of this invention will be described below with reference to the accompanying drawings.

[0075] See Figure 1 This image shows a three-dimensional structural schematic diagram of the automatic hot riveting rod assembly device of the present invention. The following is in conjunction with... Figure 1 The automatic hot riveting rod device of the present invention will be described.

[0076] like Figure 1 As shown, the automatic hot riveting rod assembly of the present invention includes a traveling trolley 21, a horizontal position adjustment mechanism 22, a rivet heating mechanism 23, a vertical position adjustment mechanism 24, a U-shaped frame 25, a rivet gun 26, a swing assembly 27, a top assembly 28, and a robot 29. The traveling trolley 21 can travel on a working surface (such as the ground). The horizontal position adjustment mechanism 22 is mounted on the traveling trolley 21 and can be adjusted horizontally relative to the traveling trolley 21, including both lateral and longitudinal position adjustments. The rivet heating mechanism 23 is mounted on the horizontal position adjustment mechanism 22 and is used to heat the rivets 12. The vertical position adjustment mechanism 24 is mounted on the horizontal position adjustment mechanism 22 and can be adjusted vertically relative to the horizontal position adjustment mechanism 22. The U-shaped frame 25 is connected to the vertical position adjustment mechanism 24, and the height of the U-shaped frame 25 can be adjusted by the vertical position adjustment mechanism 24. Figure 8 As shown, the U-shaped frame 25 has a first connecting portion 251 and a second connecting portion 252 arranged opposite to each other; the rivet gun 26 is mounted on the first connecting portion 251; the swing assembly 27 is mounted on the first connecting portion 251, and the swing assembly 27 is drivenly connected to the rivet gun 26, and the swing assembly 27 is used to drive the rivet gun 26 to rotate; the top head assembly 28 is mounted on the second connecting portion 252, and the top head assembly 28 is arranged opposite to the rivet gun 26; the robot 29 is mounted on the horizontal position adjustment mechanism 22, combined with... Figure 2As shown, the robot 29 has a rivet gripper 291 at its end. The rivet gripper 291 can hold the rivet 12 heated by the rivet heating mechanism 23 and place the rivet 12 on the top assembly 28. The top assembly 28 can push the rivet 12 into the riveting hole 11 on the rod 10. Then the rivet gun 26 cooperates with the top assembly 28 to complete the riveting of the rivet 12.

[0077] Hot riveting is used to connect two rods. The riveting holes on the two rods are aligned, and then a heated rivet is passed through the riveting holes on the two rods. The larger end of the rivet is held in place by a mandrel, and the straight end of the rivet is engaged with a rivet gun. The rivet gun is then activated, and through high-frequency downward impact vibration generated during the pressing process, it presses down on the end of the rivet until it is deformed into a larger end that fits tightly against the surface of the corresponding rod, thus completing the riveting. However, existing hot riveting processes are manual and require multiple people to complete. The automatic hot riveting rod assembly equipment of this invention can automatically complete the hot riveting work.

[0078] The working principle of the automatic hot riveting rod device of the present invention is as follows:

[0079] The automatic hot riveting equipment is moved to the rod 10 to be hot riveted by the movement of the trolley 21. The position of the U-shaped frame 25 is adjusted by the horizontal position adjustment mechanism 22 and the vertical position adjustment mechanism 24 so that the first connecting part 251 and the second connecting part 251 of the U-shaped frame 25 are located on both sides of the riveting hole 11 of the rod 10, and the rivet gun 26 and the top assembly 28 are aligned with the corresponding riveting hole 11. The rivet 12 is heated by the rivet heating mechanism 23. When the rivet reaches the temperature suitable for riveting, the robot 29 adjusts the position of the rivet jaw 291 and clamps the heated rivet 12. Then, the robot 29 moves the rivet jaw 291 to the position of the top assembly 28. The rivet jaw 291 releases its grip on the rivet 12, so that the rivet 12 is placed on the top assembly 28. The top assembly 28 pushes the rivet 12 into the corresponding riveting hole 11. The rivet gun 26 presses against the end of the rivet 12. The high-frequency downward impact vibration generated by the rivet gun 26 during the pressing process presses against the end of the rivet 12, deforming the end of the rivet 12 and forming a rivet joint that is tightly pressed against the corresponding surface of the rod 10. In this way, the riveting of one rivet is completed.

[0080] In one specific embodiment of the present invention, such as Figure 8 , Figure 16 and Figure 17As shown, the top head assembly 28 of the present invention includes a lifting drive member 281 disposed on the second connecting portion 252, a top head 282 disposed on the driving end of the lifting drive member 281, a positioning sleeve 283 sleeved on the top head 282, and a spring 284 sleeved on the top head 282 and located within the positioning sleeve 283; the top head 282 is slidably disposed within the positioning sleeve 283, and the top head 282 can be adjusted up and down within the positioning sleeve 283; the top surface of the top head 282 forms a bearing surface 2821 adapted to the head of the rivet 12; the spring 284 is connected to the top head 282, and the spring 284... 84. Apply elastic force to the top head 282 and the positioning sleeve 283 so that the top head 282 is located inside the positioning sleeve 283. When the rivet 12 is placed on the top head 282, the upper part of the positioning sleeve 283 can limit the rivet 12. The lifting drive 281 can be adjusted up and down. The lifting drive 281 drives the top head 282 to move upward, and then moves the positioning sleeve 283 upward together. When the positioning sleeve 283 abuts against the surface of the rod 10, the top head 282 can move upward relative to the positioning sleeve 283 and push the rivet 12 into the riveting hole 11 on the rod 10.

[0081] In its initial state, the end face of the positioning sleeve 283 is a certain distance from the surface of the corresponding rod 10. At this time, the spring 284 causes the top head 282 to be located inside the positioning sleeve 283, and the bearing surface 2821 of the top head 282 is a certain space from the end face of the positioning sleeve 283. This initial state of the top head assembly 28 is used to facilitate the placement of the rivet 12. Specifically, the rivet claw 291 places the heated rivet 12 into the positioning sleeve 283. At this time, the rivet claw 291 releases its clamping action on the rivet 12, but the rivet claw 291 does not move away. The large end of the rivet 12 (which is hemispherical and has a diameter larger than the diameter of the straight rod of the rivet 12) is placed on the bearing surface 2821. The positioning sleeve 283 also accommodates part of the straight rod of the rivet 12. The positioning sleeve 283 plays a limiting role in the rivet 12, preventing the rivet 12 from falling off. After the rivet 12 is placed, the lifting drive 281 is activated, pushing the drive end outward. The drive end, along with the top head 282 and the positioning sleeve 283, moves towards the riveting hole 11, causing the straight rod of the rivet 12 to pass through the riveting hole. At this time, the rivet clamp 291 moves away, and the end face of the positioning sleeve 283 comes into contact with the corresponding part of the rod 10. Limited by the rod 10, the drive end continues to move with the top head 282, and the spring 284 is compressed until the top head 282 presses the large end of the rivet 12 against the surface of the rod 10. The lifting drive 281 maintains this lifting state until the rivet 12 is riveted. Then, the lifting drive 281 retracts inward to reset, and the spring 284 resets, so that the positioning sleeve 283 and the top head 282 return to their initial state, so that the next rivet can be worked on.

[0082] Furthermore, the positioning sleeve 283 is provided with a groove 2831, and the top head 282 is provided with a matching sliding part corresponding to the groove 2831. The sliding part of the top head 282 slides within the groove 2831, so that the top head 282 can be slidably adjusted relative to the positioning sleeve 283. A sealing structure is provided at one end of the positioning sleeve 283 near the lifting drive member 281 to seal the groove 2831 and prevent the sliding part of the top head 282 from sliding out of the groove 2831.

[0083] Furthermore, such as Figure 8 and Figure 16 As shown, the lifting drive component 281 is fixedly connected to the second connecting part 252 of the U-shaped frame 25 via the fixed flange 285.

[0084] Furthermore, the large end of the rivet 12 is hemispherical, and the bearing surface 2821 is a matching hemispherical surface, so as to facilitate the positioning of the large end of the rivet 12.

[0085] Furthermore, such as Figure 8 , Figure 16 and Figure 17 As shown, the second connecting part 252 is also provided with a vision camera 253 located near the top assembly 28 and a camera cover 254 located opposite to the vision camera 253; the camera cover 254 is slidably mounted on the second connecting part 252, and the camera cover 254 can be adjusted to a first position to cover the vision camera 253 by sliding, and can also be adjusted to a second position to open the vision camera 253.

[0086] The visual camera 253 can identify the position of the rivet hole 11 on the rod 10, and then adjust the position of the U-shaped bracket 25 according to the specific position of the identified rivet hole so that the rivet gun 26 and the top assembly 28 are aligned with the corresponding rivet hole 11.

[0087] Furthermore, there are two vision cameras 253, located on either side of the top assembly 28.

[0088] A translation drive mechanism 255, which is motive-connected to the camera housing 254, is also provided on the second connecting part 252. This translation drive mechanism 255 drives the camera housing 254 to switch between a first position and a second position. The translation drive mechanism 255 can be a drive component such as an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0089] In one specific embodiment of the present invention, such as Figure 8 and Figure 9 As shown, a bracket 2511 is provided on the first connecting part 251 corresponding to the rivet gun 26; combined with Figures 10 to 12As shown, the swing assembly 27 is mounted on the bracket 2511, and the swing assembly 27 is fixedly connected to the handle 261 of the rivet gun 26 via the fixed seat 30; the lower end of the rivet gun 26 passes through the first connecting part 251 and is detachably connected to a riveting die head 31, and the rivet gun 26 and the first connecting part 251 are rotatably connected via a ball bearing 32.

[0090] The rivet gun 26 is connected to the first connecting part 251 by the ball bearing 32, so that the rivet gun 26 can be rotated relative to the first connecting part 251. The rotation of the rivet gun 26 can improve the forming quality of the rivet joint formed by the rivet gun 26 pressing the end of the rivet 12.

[0091] Furthermore, such as Figures 10 to 12 As shown, the swing assembly 27 includes a drive motor 271 mounted on a bracket 2511, a rotating rod 272 eccentrically connected to the motor shaft of the drive motor 271, a connecting column 273 connected to the rotating rod 272, and a swing drive ring 274 corresponding to the connecting column 273 and mounted on the bracket 2511; the fixed base 30 is connected to the connecting column 273; the drive motor 271 can drive the rotating rod 272 to rotate eccentrically, thereby causing the connecting column 273 to rotate eccentrically together; the swing drive ring 274 can limit the eccentric rotation of the connecting column 273 so that the connecting column 273 can perform swing-type circular motion.

[0092] Furthermore, the swinging circular motion of the connecting column 273 drives the rivet gun 26 to swing and rotate, causing the riveting die head 31 at the lower end of the rivet gun 26 to also swing and rotate (specifically, the riveting die head 31 completes the circular motion in a state of tilting towards one side edge), making the rivet head into a hemispherical shape, thus improving the forming quality of the rivet head formed at the end of the rivet 12.

[0093] Specifically, the top of the bracket 2511 is provided with a pair of fixed ear plates 2512, and the swing drive ring 274 is provided with a pair of fixed rings 2742 corresponding to the fixed ear plates 2512. The fixed rings 2742 are rotatably connected to the fixed ear plates 2512 by a shaft. The direction of the shaft is consistent with the center line of the fixed rings 2742, so that the fixed rings 2742 can rotate around the shaft. The swing drive ring 274 is also provided with a limit pin 2741. The limit pin 2741 passes through the connecting post 273 and is connected to the swing drive ring 274 at both ends. The connecting post 273 converts the rotation of the rotating rod 272 into swing by limiting the rotation of the rotating rod 272 through the limit pin 2741. In another preferred embodiment, a pair of limiting pins 2741 may be provided, which are arranged opposite to each other. One end of the limiting pin 2741 is connected to the swing drive ring 274, and the other end extends into the interior of the connecting post 273. Preferably, a pair of fixing rings 2742 and a pair of limiting pins 2741 are arranged at equal intervals on the swing drive ring 274, and the outer contour of the swing drive ring 274 is circular.

[0094] Furthermore, the fixing seat 30 is fitted onto the handle 261 of the rivet gun 26. A flange plate is formed on the top of the fixing seat 30, and this flange plate is bolted to the bottom of the connecting post 273. A tightening bolt 33 is threaded onto the portion of the fixing seat 30 that fits onto the handle 261. This tightening bolt 33 can be adjusted to tighten the handle 261, thus securing the handle 261 and preventing the rivet gun 26 from wobbling during vertical vibration, thereby improving the structural stability of the rivet gun 26. Preferably, the tightening bolts 33 are located on opposite sides of the handle 261.

[0095] The top of the rivet gun 26 of the present invention is limited and fixed by the fixing seat 30, and the middle part of the rivet gun 26 is limited by the ball bearing 32, so that the rivet gun 26 will not have eccentric vibration, and can realize the riveting of rivets well and improve the quality of riveting.

[0096] Furthermore, the bracket 2511 includes multiple support rods mounted on the first connecting portion 251 and a support plate connected to the top of the support rods. The swing assembly 27 is mounted on the support plate. This support rod configuration improves the installation stability of the rivet gun 26.

[0097] like Figures 13 to 15As shown, the riveting die head 31 is provided with an insertion groove 311 at the lower end of the rivet gun 26; the lower end of the rivet gun 26 is provided with a matching insertion connector 262, which can be inserted into the insertion groove 311, and the end of the insertion connector 262 and the bottom of the insertion groove 311 are provided with magnets 34 that attract each other; the inner wall of the insertion groove 311 is provided with a snap-fit ​​groove 312; the side of the insertion connector 262 is provided with a telescopically adjustable locking steel post 263. When the insertion connector 262 is inserted into the insertion groove 311, the locking steel post 263 extends into the snap-fit ​​groove 312, thereby realizing the fixed connection between the rivet gun 26 and the riveting die head 31.

[0098] The connector 262 of the rivet gun 26 is inserted into the riveting groove 311 of the riveting die head 31. The end of the connector 262 is attached to a magnet 34, which attracts the magnet 34 located at the bottom of the groove 311, thus achieving adsorption and fixation between the rivet gun 26 and the riveting die head 31. Furthermore, a locking steel column 263 is inserted into the snap-fit ​​groove 312 for snap-fit, achieving a mechanical fixed connection and improving the firmness and stability of the riveting die head 31 connection. The above connection method also facilitates the replacement of the riveting die head 31, and the replacement operation can be automatically achieved by a robot.

[0099] Furthermore, a hydraulic port 264 is provided on the connector 262. This hydraulic port 264 is connected to a hydraulic pipeline formed inside the connector 262, which is connected to the location of the locking steel column 263. The hydraulic port 264 is connected to a hydraulic oil pump, through which hydraulic oil is input. The hydraulic oil then pushes the locking steel column 263 out to engage with the locking groove 312, and the hydraulic oil pump is in a pressure-holding state. When it is necessary to release the engagement, the hydraulic oil pump is turned off. Without the pressure of the hydraulic oil, the locking steel column 263 can retract under the force (the force that separates the riveting die head 31 from the riveting connector 262) and disengage from the locking groove 312.

[0100] Furthermore, the riveting die head 31 has a pressing surface formed on the end of the rivet 12, which is preferably hemispherical, so as to compress the end of the rivet 12 into a hemispherical shape.

[0101] In one specific embodiment of the present invention, such as Figure 1 , Figure 3 and Figure 7As shown, the rivet heating mechanism 23 includes a heating box 231, a heating dry pot 232 disposed on the heating box 231, and an ejector 233 disposed on the heating box 231 and located below the heating dry pot 232. The heating dry pot 232 is provided with a segmented electromagnetic coil for gradient heating of the rivets 12 inside the heating dry pot 232. The ejector 233 is adjustable in height and is used to eject the upper part of the rivets 12 out of the heating dry pot 232 after the rivets 12 are heated so that the rivet gripper 291 at the end of the robot 29 can grip them.

[0102] The ejector end of the ejector 233 supports the end of the rivet 12. Adjusting the height of the ejector end of the ejector 233 allows the rivet 12 to be fully placed inside the heating dry pot 232, or partially extended into the heating dry pot 232. When placing the rivet 12, the larger end of the rivet 12 is positioned upwards, with the straight end of the rivet 12 resting on the ejector end of the ejector 233. The heating dry pot 232 provides gradient heating to the rivet 12, specifically heating the distal end of the straight end to 800°C and the proximal end to 1000°C. Preferably, the ejector 233 is a vertically positioned electric cylinder, pneumatic cylinder, or hydraulic cylinder. A high-temperature resistant structure, such as a high-temperature resistant ceramic support block, is provided at the ejector end of the ejector 233.

[0103] Furthermore, the segmented electromagnetic coil inside the heating dry pot 232 is equipped with multiple control modules to control the heating of coils with corresponding numbers of turns (e.g., 1 turn, 5 turns, etc.), thus achieving gradient heating. A heat insulation plate 234 is provided on the side of the heating chamber 23. Multiple vertically spaced photoelectric detection switches 235 are provided on the side of the heat insulation plate 234 away from the heating chamber 23. Detection holes are provided on the heat insulation plate 234 corresponding to the photoelectric detection switches 235. The photoelectric detection switches 235 can emit detection light through the corresponding detection holes. The length of the rivets 12 placed inside the heating dry pot 232 can be detected by the photoelectric detection switches 235, thereby controlling the corresponding coil to be energized and heated according to the length of the rivets 12, achieving precise control of the heating area.

[0104] Specifically, the ejector end of the ejector 233 extends to a certain height within the heating dry pot 232. At this point, the rivet 12 can be placed inside the heating dry pot 232, supported by the ejector end. Then, all photoelectric detection switches 235 are activated to detect the position of the top of the rivet 12, and the length range of the rivet 12 is determined based on the detected top position. Then, the ejector end of the ejector 233 retracts to allow the rivet 12 to remain inside the heating dry pot 232, and the corresponding coil is energized for heating based on the length of the rivet 12.

[0105] Furthermore, a storage rack 236 is provided on the top of the heating box 23, on which a plurality of rivets 12 are placed. The storage rack 236 is used to store the rivets 12. When it is necessary to put the rivets 12 into the heating dry pot 232 for heating, the rivet 12 can be picked up from the storage rack 236 by the rivet gripper 291 of the robot 29 and then put into the heating dry pot 232 for heating.

[0106] Furthermore, a hydraulic oil tank 35 is also provided on the top of the heating box 23. A hydraulic oil pump 361 and a hydraulic drive motor 362 are mounted on the top of the hydraulic oil tank 35. When the hydraulic drive motor 362 is activated, the hydraulic oil pump 361 pumps the hydraulic oil from the hydraulic oil tank 35, which is then pumped to the required location via an oil delivery pipeline. The hydraulic oil pump 361 supplies hydraulic oil to the lifting drive component 281, preferably a hydraulic cylinder, via an oil delivery pipeline. The hydraulic oil pump 361 also supplies hydraulic oil to the hydraulic port 264 via an oil delivery pipeline.

[0107] In one specific embodiment of the present invention, such as Figure 1 and Figure 2 As shown, robot 29 is a six-axis robot with adjustable end effector position. The end effector of this six-axis robot is equipped with a pair of rivet grippers 291, and the gripping distance is adjustable. By adjusting the gripping distance, the rivet 12 can be gripped or released. The gripping portion of the rivet grippers 291 is V-shaped, and the two gripping portions are arranged opposite each other. A high-temperature resistant layer 292, made of high-temperature resistant ceramic material, is provided at the gripping portion.

[0108] At the end of the robot 29, there is a gripper drive mechanism that drives a pair of rivet grippers 291 to move. The gripper drive mechanism can drive the pair of rivet grippers 291 to move closer to each other or further away from each other. The gripper drive mechanism can be a two-way cylinder or a two-way hydraulic cylinder.

[0109] In one specific embodiment of the present invention, such as Figure 4 As shown, the vertical position adjustment mechanism 24 is provided with a rotary drive mechanism 37 corresponding to the U-shaped frame 25. The rotary drive mechanism 37 is driven to the U-shaped frame 25 and is used to drive the U-shaped frame 25 to be in a horizontal or vertical state.

[0110] The U-shaped frame 25 can be rotated by the rotary drive mechanism 37, so that the first connecting part 251 and the second connecting part 252 on the U-shaped frame 25 are arranged vertically opposite each other to rivet vertically arranged riveting holes; the first connecting part 251 and the second connecting part 252 on the U-shaped frame 25 are arranged horizontally opposite each other to rivet horizontally arranged riveting holes. The drive of the rotary drive mechanism 37 can also enable the first connecting part 251 and the second connecting part 252 on the U-shaped frame 25 to be aligned with rods that are not horizontal or vertical.

[0111] Furthermore, the rotary drive mechanism 37 includes a rotary drive motor 371 mounted on the vertical position adjustment mechanism 24 and a rotary reducer 372 connected to the rotary drive motor 371. The rotary reducer 372 is fastened to the middle of the U-shaped frame 25 by bolts. The rotary drive motor 37 drives the U-shaped frame 25 to rotate and adjust via the rotary reducer 372.

[0112] In one specific embodiment of the present invention, such as Figure 1 As shown, the walking trolley 21 includes four walking wheels and a frame located on top of the four walking wheels. The four walking wheels are equipped with a power mechanism, which can drive the walking wheels to rotate and realize the walking function.

[0113] Furthermore, such as Figures 4 to 6 As shown, the horizontal position adjustment mechanism 22 includes a first sliding plate 221 slidably mounted on the traveling trolley 21, a first drive assembly mounted on the traveling trolley 21 and drivenly connected to the first sliding plate 221, a second sliding plate 222 slidably mounted on the first sliding plate 221, and a second drive assembly mounted on the first sliding plate 221 and drivenly connected to the second sliding plate 222. The first drive assembly can drive the first sliding plate 221 to slide along a first direction on the traveling trolley 21; the second drive assembly can drive the second sliding plate 222 to slide along a second direction perpendicular to the first direction on the first sliding plate 221. The first direction is the transverse direction on the horizontal plane, and the second direction is the longitudinal direction on the horizontal plane.

[0114] The frame of the traveling trolley 21 is provided with a first guide rail 2234 arranged along a first direction. A first sliding plate 221 is slidably mounted on the first guide rail 2234. The bottom of the first sliding plate 221 is provided with a first guide rail seat slidably mounted on the first guide rail 2234. The cooperation between the first guide rail 2234 and the first guide rail seat can restrict the sliding of the first sliding plate 221 along the first direction.

[0115] The first drive assembly includes a first rack 2233 fixed on the first sliding plate 221, a first motor fixed on the frame of the traveling trolley 21, and a first gear connected to the motor shaft of the first motor. The first gear meshes with the first rack 2233, and the first motor can drive the first gear to rotate. In turn, the first gear can drive the first rack 2233 to move. The movement of the first rack 2233 will cause the first sliding plate 221 to slide along the first direction.

[0116] A second guide rail 2244 is provided on the first sliding plate 221 along the second direction. The second sliding plate 222 slides on the second guide rail 2244. The bottom of the second sliding plate 222 is provided with a second guide rail seat that slides on the second guide rail 2244. The cooperation between the second guide rail 2244 and the second guide rail seat can restrict the second sliding plate 222 from sliding along the second direction.

[0117] The second drive assembly includes a second rack 2243 fixed on the first sliding plate 221, a second motor 2241 fixed on the second sliding plate 222, and a second gear 2242 connected to the motor shaft of the second motor. The second gear 2242 meshes with the second rack 2243, and the second motor can drive the second gear 2242 to rotate. As a result, the second gear 2242 can move along the second rack 2233, thereby causing the second sliding plate 222 to slide along the second direction.

[0118] Furthermore, a limit buffer 2212 is provided on the end side of the first sliding plate 221, and a limit block 2211 is provided on the corresponding end side of the first sliding plate 221. The movement of the second sliding plate 222 can be limited by the limit block 2211 and the corresponding limit buffer 2212 to prevent the second sliding plate 222 from slipping off the second guide rail 2244.

[0119] Furthermore, a vertical frame 225 is provided on the second sliding plate 222, and a vertical position adjustment mechanism 24 is provided on the vertical frame 225. The vertical position adjustment mechanism 24 includes a lifting plate 241 and a vertical guide rail 242 provided on the vertical frame 224. The lifting plate 241 slides on the vertical guide rail 242. Preferably, the lifting plate 241 can slide on the vertical guide rail 242 through a guide rail seat.

[0120] The vertical position adjustment mechanism 24 also includes a third drive assembly for driving the lifting plate 241 to move up and down along the vertical guide rail 242. The third drive assembly includes a lifting screw 243 rotatably mounted on the vertical frame 225, a nut fixing seat 244 threadedly connected to the lifting screw 243, and a screw drive motor 246 mounted on the second sliding plate 222. The screw drive motor 246 is connected to a worm gear reducer 247, which is driven by a screw coupling 245. The screw coupling 245 is connected to the lifting screw 243, and the screw drive motor 246 drives the screw coupling 245 to rotate through the worm gear reducer 247. The screw coupling 245 drives the lifting screw 243 to rotate, and the nut fixing seat 244 can move up and down along the lifting screw 243. The nut fixing seat 244 also drives the lifting plate 241 to move up and down.

[0121] An upper fixed seat 2251 is provided at the top of the vertical frame 225, and a lower fixed seat 2252 is provided at the bottom of the vertical frame 225. The top and bottom of the lifting screw 243 are rotatably mounted on the upper fixed seat 2251 and the lower fixed seat 2252.

[0122] A lifting limit switch 248 is also provided on the vertical frame 225 to limit the lifting adjustment displacement of the lifting plate 241. After the lifting limit switch 248 comes into contact with the lifting plate 241, it generates a command to control the lead screw drive motor 246 to stop running. There are two lifting limit switches 248, one located at the bottom of the vertical guide rail 242 and the other located at the top of the vertical guide rail 242. The lifting limit switch 248 can prevent the lifting plate 241 from disengaging from the vertical guide rail 242.

[0123] The working process of the automatic hot riveting rod device of the present invention will be described below.

[0124] First, the rivets 12 are prepared manually and placed on the storage rack 236. Alternatively, a rivet 12 can be manually placed into the heating dry pot 232, or the rivet gripper 291 driven by the robot 29 can automatically clamp the rivet 12 on the storage rack 236 into the heating dry pot 232, thus completing the material preparation work.

[0125] Secondly, the core equipment can be started in advance, such as the hydraulic press and the electric heating equipment (e.g., energizing the electromagnetic coil of the heating dry pot 232); or the equipment can be moved to the vicinity of the rod before starting the core equipment.

[0126] Then, rotate and adjust the U-shaped frame 25 so that the first connecting part 251 and the second connecting part 251 on the U-shaped frame 25 are located on both sides of the riveting hole 11 of the rod 10; open the camera cover 254 and use the vision camera 253 to take pictures of the riveting hole 11 on the rod 10 to form an image. Recognize the image to obtain the position of the riveting hole 11. Adjust the position based on the recognized position, that is, use the horizontal position adjustment mechanism 22 to adjust the position of the first connecting part 251 and the second connecting part 251 so that the rivet gun 26 and the top assembly 28 are aligned with the corresponding riveting hole 11. Use the vertical position adjustment mechanism 24 to adjust the setting height of the U-shaped frame 25 to adjust the height of the riveting mold head 31 from the opening of the riveting hole 11. If the vision camera 253 does not detect the riveting hole, the operator can be prompted to manually adjust the position of the equipment so that the vision camera 253 can capture the image of the riveting hole 11.

[0127] Next, the heating temperature of rivet 12 is checked. When the temperature reaches the riveting temperature, the heated rivet 12 is pushed out a certain distance using ejector 233. Robot 29 adjusts the position of rivet gripper 291, grips the heated rivet 12 using rivet gripper 291, and then places the rivet 12 onto top head 282 using rivet gripper 291. Camera cover 254 is closed to block vision camera 253. Lifting drive 281 is activated to push rivet 12 into riveting hole 11. Lifting drive 281 is kept in the lifting state so that top head 282 can press against the large end of rivet 12 (at this time, by adjusting the height of the vertical position adjustment mechanism 24, the end of the straight rod of rivet 12 can be connected to the end of the riveting die head 31 at the lower end of rivet gun 26; or the vertical position adjustment mechanism 24 can be adjusted downwards, and at the same time the lifting drive 281 is lifted upwards to allow the lower end of rivet gun 26 to be pressed against the large end of rivet 12). The end of the riveting die head 31 is connected to the end of the rivet 12; then the rivet gun 26 is started to reciprocate and press the end of the rivet 12 to deform it; finally, the drive motor 271 of the swing assembly 27 is started, which drives the connecting column 273 to rotate through the rotating rod 272, so that the riveting die head 31 at the lower end of the rivet gun 26 simulates a swinging circular motion, thereby forming a hemispherical riveting joint at the end of the rivet 12, thus completing the riveting of one rivet. The automatic hot riveting rod equipment will issue an alarm after completing the riveting and wait for the next instruction.

[0128] The present invention also provides a method for automatically hot riveting rods, which is described below.

[0129] The automatic hot riveting method for rods of the present invention includes the following steps:

[0130] The above-mentioned automatic hot riveting rod equipment is provided, and the automatic hot riveting rod equipment is moved to the rod to be riveted by the movement of the traveling trolley;

[0131] Adjust the position of the automatic hot riveting equipment so that the first and second connecting parts of the U-shaped frame are located on both sides of the riveting hole on the rod to be riveted;

[0132] The position of the U-shaped frame is adjusted by the horizontal position adjustment mechanism so that the rivet gun and the top assembly are aligned with the corresponding rivet holes;

[0133] The rivet heating mechanism is activated to heat the rivet. After the rivet reaches the set temperature, the heated rivet is picked up by the rivet gripper on the robot and placed on the top assembly.

[0134] The top assembly is lifted upwards to push the rivet into the corresponding rivet hole;

[0135] The rivet gun moves downward to press down on the end of the rivet. After pressing the end of the rivet into place, the swing assembly is activated to make the rivet gun rotate, thereby completing the riveting.

[0136] Furthermore, the step of adjusting the position of the automatic hot riveting equipment so that the first and second connecting parts of the U-shaped frame are located on both sides of the riveting hole on the rod to be riveted can be achieved by manually controlling the automatic hot riveting equipment.

[0137] Then adjust the position of the automatic hot riveting equipment. Based on the setting of the riveting holes on the rod, rotate and adjust the U-shaped frame so that the first and second connecting parts of the U-shaped frame can span across both sides of the riveting holes.

[0138] Furthermore, before adjusting the position of the U-shaped frame through the horizontal position adjustment mechanism, an image of the rivet hole is captured using a vision camera. The image is then recognized to obtain the position information of the rivet hole. This position information is used to control the adjustment of the horizontal position adjustment mechanism so that the rivet gun and the top assembly are aligned with the corresponding rivet hole.

[0139] Furthermore, the step of activating the rivet heating mechanism to heat the rivet can be done before moving the automatic hot riveting rod equipment to the rod, that is, during the pre-preparation phase.

[0140] Furthermore, before heating the rivet, a photoelectric detection switch is used to detect the size of the rivet, and then the corresponding heating coil is controlled to work based on the detected rivet size, so as to achieve precise segmented heating of the rivet.

[0141] Furthermore, the step of moving the rivet gun downward to press the end of the rivet includes: moving downward using the vertical position adjustment mechanism, driving the rivet gun downward through the U-shaped frame, and simultaneously lifting the lifting member of the top assembly upward to press the large end of the rivet tightly against the rod until the end of the riveting die head at the lower end of the rivet gun is connected to the end of the rivet, starting the rivet gun, and using the rivet gun to reciprocate to press the end of the rivet to squeeze and deform the end of the rivet.

[0142] In another preferred embodiment, after the horizontal position adjustment mechanism adjusts the position of the U-shaped frame, the vertical position adjustment mechanism is used to adjust the height so that the end of the riveting die head at the lower end of the rivet gun is a certain distance from the opening of the riveting hole; subsequently, when the rivet is pushed into the riveting hole, the end of the rivet contacts the end of the riveting die head, and then the rivet gun is started to perform the riveting operation.

[0143] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. An automatic hot riveting device for rods, characterized in that, include: Walking cart; A horizontal position adjustment mechanism is provided on the traveling trolley, and the horizontal position adjustment mechanism can be adjusted in the horizontal direction relative to the traveling trolley; A rivet heating mechanism provided on the horizontal position adjustment mechanism is used to heat the rivet; A vertical position adjustment mechanism is provided on the horizontal position adjustment mechanism, and the vertical position adjustment mechanism can be adjusted in the vertical direction relative to the horizontal position adjustment mechanism; The U-shaped frame connected to the vertical position adjustment mechanism has a first connecting part and a second connecting part arranged opposite to each other; A rivet gun mounted on the first connecting part; A swing assembly disposed on the first connecting part and driven and connected to the rivet gun is used to drive the rivet gun to rotate; A top head assembly is provided on the second connecting portion, and the top head assembly is disposed opposite to the rivet gun; The robot is mounted on the horizontal position adjustment mechanism. The end of the robot is equipped with a rivet gripper. The rivet gripper can hold the rivet heated by the rivet heating mechanism and place the rivet on the top assembly. The top assembly can push the rivet into the riveting hole on the rod. Then, the rivet gun cooperates with the top assembly to complete the riveting of the rivet.

2. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The top head assembly includes a lifting drive member disposed on the second connecting part, a top head disposed on the driving end of the lifting drive member, a positioning sleeve sleeved on the top head, and a spring sleeved on the top head and located inside the positioning sleeve. The top head is slidably disposed within the positioning sleeve, and the top head can be adjusted up and down within the positioning sleeve. The top surface of the top head has a bearing surface that is adapted to the head of the rivet. The spring is connected to the top head, and the spring applies elastic force to the top head and the positioning sleeve so that the top head is located inside the positioning sleeve. When a rivet is placed on the top head, the upper part of the positioning sleeve can limit the rivet. The lifting drive component is adjustable in height. The lifting drive component drives the top head to move upward, thereby moving the positioning sleeve upward together. When the positioning sleeve abuts against the surface of the rod, the top head can move upward relative to the positioning sleeve and push the rivet into the rivet hole on the rod.

3. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The second connecting part is also provided with a vision camera located near the top assembly and a camera cover located opposite the vision camera; The camera cover is slidably mounted on the second connecting part. The camera cover can be adjusted to a first position to cover the vision camera, and can also be adjusted to a second position to open the vision camera.

4. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The first connecting part is provided with a bracket corresponding to the rivet gun; The swing assembly is mounted on the bracket, and the swing assembly is fixedly connected to the handle of the rivet gun via a fixed base; The lower end of the rivet gun passes through the first connecting part and is detachably connected to a riveting die head. The rivet gun and the first connecting part are rotatably connected by a ball bearing.

5. The automatic hot riveting equipment for rods as described in claim 4, characterized in that, The swing assembly includes a drive motor mounted on the bracket, a rotating rod eccentrically connected to the motor shaft of the drive motor, a connecting column connected to the rotating rod, and a swing drive ring corresponding to the connecting column and connected to the bracket. The fixing base is connected to the connecting column; The drive motor can drive the rotating rod to rotate eccentrically, thereby causing the connecting column to rotate eccentrically as well. The swing drive ring can limit the eccentric rotation of the connecting column so that the connecting column can perform a swinging circular motion.

6. The automatic hot riveting equipment for rods as described in claim 4, characterized in that, The riveting die head is provided with an insertion groove corresponding to the lower end of the rivet gun; The lower end of the rivet gun is provided with a matching connector, which can be inserted into the insertion slot, and the end of the connector and the bottom of the insertion slot are provided with magnets that attract each other. The inner wall of the insertion slot is provided with a snap-fit ​​groove; The side of the connector is provided with a telescopically adjustable locking steel post. When the connector is inserted into the insertion groove, the locking steel post extends into the snap-fit ​​groove, thereby connecting the rivet gun and the riveting die head.

7. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The rivet heating mechanism includes a heating box, a heating dry pot disposed on the heating box, and an ejector disposed on the heating box and located below the heating dry pot; The heating dry pot is equipped with a segmented electromagnetic coil for gradient heating of the rivets inside the heating dry pot; The ejector is adjustable in height and is used to eject the upper part of the rivet out of the heating dry pot after the rivet is heated so that the rivet gripper at the end of the robot can grasp it.

8. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The vertical position adjustment mechanism is equipped with a rotary drive mechanism corresponding to the U-shaped frame. The rotary drive mechanism is driven to the U-shaped frame and is used to drive the U-shaped frame to a horizontal or vertical state.

9. The automatic hot riveting equipment for rods as described in claim 1, characterized in that, The horizontal position adjustment mechanism includes a first sliding plate slidably mounted on the traveling trolley, a first drive assembly mounted on the traveling trolley and drivenly connected to the first sliding plate, a second sliding plate slidably mounted on the first sliding plate, and a second drive assembly mounted on the first sliding plate and drivenly connected to the second sliding plate. The first drive component can drive the first sliding plate to slide along a first direction on the traveling trolley; The second drive component can drive the second slide plate to slide on the first slide plate along a second direction perpendicular to the first direction.

10. A method for automatically hot riveting rods, characterized in that, Includes the following steps: An automatic hot riveting rod assembly device as described in claim 1 is provided, wherein the automatic hot riveting rod assembly device is moved to the rod assembly to be riveted by using a traveling trolley. Adjust the position of the automatic hot riveting equipment so that the first and second connecting parts of the U-shaped frame are located on both sides of the riveting hole on the rod to be riveted; The position of the U-shaped frame is adjusted by the horizontal position adjustment mechanism so that the rivet gun and the top head assembly are aligned with the corresponding rivet holes; The rivet heating mechanism is activated to heat the rivet. After the rivet reaches the set temperature, the heated rivet is picked up by the rivet gripper on the robot and placed on the top assembly. The top assembly is lifted upward to push the rivet into the corresponding riveting hole; The rivet gun moves downward to press against the end of the rivet. After pressing the end of the rivet into place, the swing assembly is activated to make the rivet gun rotate, thereby completing the riveting of the rivet.

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