A fully automatic aviation nail sleeve local annealing machine

Abstract

The present invention discloses a fully automatic aviation nail sleeve local annealing machine, comprising an upper top module and a heating mechanism, wherein the upper top module includes an upper top assembly capable of moving up and down and rotating horizontally, the heating mechanism includes a heating coil with a heating hole in the middle, and further comprises: a lower top module; a blanking assembly; a blanking module; and a material taking module; wherein an argon protection device is provided at the bottom of the upper top assembly, the argon protection device can move up and down with the upper top assembly and cover the heating coil, forming a closed argon protection space between the argon protection device and the heating coil, and the lower top assembly can lift the nail sleeve upward through the heating hole and insert it into the argon protection device, and cooperate with the upper top assembly to perform rotational heating. The present invention saves the loading and unloading time of the nail sleeve, and at the same time, the argon protection device can prevent the nail sleeve from being oxidized during annealing, thereby not only improving the annealing efficiency of the nail sleeve, but also improving the annealing effect of the nail sleeve, and significantly improving the annealing quality.

Description

Technical Field

[0001] The invention relates to the technical field of annealing machines, in particular to a full-automatic aviation nail sleeve local annealing machine. Background Art

[0002] During the assembly of an aircraft wing and fuselage, a sudden, high axial pull applied to the mandrel causes a bulge in the high-temperature alloy rivet body within the precisely annealed, softened area. This allows the aircraft blind rivet to precisely assemble the aircraft wing and fuselage skin. The local annealing area of ​​the rivet body (also called the rivet sleeve) requires a surface heating temperature error of no more than ±10°C. Extremely high consistency in heating temperature and uniformity is required within this annealing area, ensuring uniform circumferential hardness of the rivet body after annealing. This ultimately achieves consistent pull force and interchangeability of blind rivets, ensuring the flight safety of various aircraft and spacecraft.

[0003] The invention patent with application number 202123420275.5 discloses an intelligent local annealing device for nail sleeves. The nail sleeve is sucked by a vacuum rotary suction head, and then the nail sleeve is transferred from top to bottom through the heating coil to the top rotation mechanism by a four-axis robot, and the nail sleeve is controlled to rotate with the top rotation mechanism, and is rotated and heated by the heating coil. This annealing device has major defects. First, due to the lack of a protective device, the nail sleeve is easily oxidized by air during heating, which has a great impact on the annealing quality of the product. Second, each time the nail sleeve completes the annealing operation, a four-axis robot is required to move it to the unloading location. That is to say, the loading and unloading of the nail sleeve are both completed by the four-axis robot. A lot of unnecessary time will be wasted in the loading and unloading process, affecting the annealing efficiency of the nail sleeve. Third, during the annealing process, the four-axis robot controls the rotation of the vacuum rotary suction head, thereby driving the rotation of the nail sleeve. The four-axis robot is controlled by a cylinder. Due to the limited rotation stroke and speed of the cylinder, the annealing efficiency of the nail sleeve will be affected. At the same time, the four-axis robot is required to accurately control the concentricity between the nail sleeve and the top rotating mechanism, otherwise the nail sleeve will be heated unevenly during the annealing process, affecting the annealing quality. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems. A fully automatic local annealing machine for aviation nail sleeves is designed to solve the problems of low annealing efficiency of existing annealing machines and easy oxidation of the annealing parts of the nail sleeves.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is a fully automatic aviation nail sleeve local annealing machine, comprising an upper top module and a heating mechanism, wherein the upper top module includes an upper top assembly that can move up and down and rotate horizontally, and the heating mechanism includes a heating coil with a heating hole in the middle, and further includes:

[0006] The lower top module includes a lower top assembly capable of driving the nail sleeve to move up and down and rotate horizontally, and the lower top assembly at least includes a core shaft inserted in the nail sleeve to position the nail sleeve;

[0007] A blanking assembly having at least two blanking openings, wherein a dividing assembly is provided inside the blanking assembly, wherein the dividing assembly includes a dividing plate that can rotate in a vertical plane, and controls the good and defective nail sleeves that have completed the annealing operation to fall into the two blanking openings respectively;

[0008] A blanking module is horizontally arranged on one side of the lower center module and is used to push the annealed nail sleeve on the lower center assembly into the blanking assembly;

[0009] A material taking module, comprising a rotatable clamping assembly capable of clamping the nail sleeve and inserting it onto the core shaft;

[0010] An argon protection device is provided at the bottom of the upper top assembly. The argon protection device can move up and down with the upper top assembly and cover the heating coil, forming a closed argon protection space between the argon protection device and the heating coil. The lower top assembly can lift the nail sleeve upward through the heating hole and insert it into the argon protection device, and cooperate with the upper top assembly to perform rotational heating.

[0011] Preferably, the local annealing machine also includes a vibration plate loading assembly, a direct vibration assembly docked with the vibration plate loading assembly, and a material distribution and transfer assembly docked with the direct vibration assembly. The material picking module clamps the nail sleeve from the material distribution and transfer assembly and places the nail sleeve on the lower top assembly.

[0012] Preferably, the material distribution and transfer assembly includes a cylinder bracket, a transfer cylinder horizontally arranged on the cylinder bracket, a slide horizontally slidably connected to one side of the transfer cylinder, a fixed plate installed on the slide, and a transfer block arranged on the fixed plate, wherein the output end of the transfer cylinder is connected to the slide, and a transfer groove for transferring a single nail sleeve is provided on the transfer block, and a stop block is provided on the opposite side of the transfer plate and in the transfer direction, and the stop block is used to prevent the nail sleeve from leaving the transfer groove during the movement of the nail sleeve with the transfer block, and the stop block is installed and fixed on the direct vibration assembly, and both ends of the transfer block are provided with a corresponding sensor for detecting the position of the nail sleeve.

[0013] Preferably, the material taking module further comprises a four-axis robot, the gripping assembly is mounted on the four-axis robot, and the four-axis robot is capable of controlling the gripping assembly to rotate in a vertical plane;

[0014] The clamping assembly includes a cylinder mounting seat, a finger cylinder arranged on the pneumatic finger mounting seat, and two clamping claws connected to the output end of the finger cylinder. The finger cylinder can control the two clamping claws to close and clamp the nail sleeve.

[0015] Preferably, the lower top module also includes a vertically arranged base, a lifting drive mechanism arranged at the lower end of the base, a sliding seat connected to the base for up and down sliding, a fixed seat installed on one side of the sliding seat, and a rotating drive mechanism arranged on the fixed seat, wherein the lifting drive mechanism is connected to the sliding seat through a screw rod, the rotating drive mechanism and the lower top assembly are arranged side by side on the fixed seat, and the rotating drive mechanism is connected to the lower top assembly for driving through a synchronous belt.

[0016] Preferably, the lower top center assembly also includes a lower top center seat, a lower top center shaft passed through the lower top center seat, a copper seat mounting body installed on the upper end of the lower top center shaft, and a copper seat passed through the copper seat mounting body, wherein bearings are provided on the upper and lower sides of the lower top center seat, the lower top center shaft is rotatably connected to the lower top center seat through the bearings, a synchronous wheel is provided at the lower end of the lower top center shaft, and the synchronous wheel is connected to the output end of the rotary drive mechanism through a synchronous belt, an insertion hole is provided at the top center of the copper seat, the core shaft is placed in the insertion hole, and the upper end of the core shaft is frustum-shaped.

[0017] Preferably, the upper top module also includes a Z-axis lifting assembly, and the upper top assembly includes an upper top seat, an upper top shaft passing through the upper top seat, and a top head connected to the lower end of the upper top shaft, wherein the upper top seat is installed at the bottom of the Z-axis lifting assembly and connected to the output end of the Z-axis lifting assembly, bearings are provided on the upper and lower sides of the upper top seat, the upper top shaft is rotatably connected to the upper top seat through bearings, and the lower end of the lower top head is conical.

[0018] Preferably, the argon protection device includes an argon protection cover, a connector connected to the side wall of the argon protection device, and an air pipe connected to the connector. The top of the argon protection cover is provided with a through hole for the upper top seat to be inserted into the argon protection cover.

[0019] Preferably, the heating mechanism further includes a heater connected to the heating coil, and a position adjustment component for adjusting the position of the heater.

[0020] Preferably, the blanking assembly includes a silo, a good product blanking pipe and a defective product blanking pipe, wherein the bottom of the silo is provided with two discharge ports, and the good product blanking pipe and the defective product blanking pipe are respectively installed at the two discharge ports;

[0021] The material distribution component also includes a rotating cylinder arranged outside the silo and a material distribution shaft connected to the output end of the rotating cylinder. The material distribution plate is connected to the material distribution shaft to control the rotation of the material distribution plate.

[0022] Compared with the prior art, the beneficial effects are:

[0023] In the present invention, the nail sleeve is clamped and transferred to the core shaft on the lower top module by the material taking module, and the lower top module lifts the nail sleeve upward, passes through the heating hole on the heating coil and is inserted into the argon protection device, and cooperates with the upper top module to clamp the upper and lower ends of the nail sleeve, and controls the nail sleeve to rotate quickly to ensure the concentricity between the nail sleeve and the heating coil, and then is evenly heated by the heating coil. After the annealing operation is completed, the nail sleeve exits the argon protection device and is pushed into the blanking assembly by the blanking module. The dividing assembly in the blanking assembly controls the good and bad products in the nail sleeve to fall into the two blanking ports respectively. Since the material taking module is not required to clamp during blanking, the loading and unloading time of the nail sleeve is greatly saved, and the annealing efficiency of the nail sleeve is improved. At the same time, the nail sleeve can be controlled to rotate 360° unlimitedly by the lower top module, and the nail sleeve is evenly heated, and the annealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the annealing machine of the present invention;

[0025] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0026] Figure 3 It is a structural diagram of the material distribution and transfer component;

[0027] Figure 4 It is a structural diagram of the material taking module;

[0028] Figure 5 It is a structural diagram of the lower top module.

[0029] Figure 6 It is a structural diagram of the lower top assembly in the lower top module;

[0030] Figure 7 It is a structural diagram of the heating mechanism;

[0031] Figure 8 It is a structural diagram of the top module and argon protection device;

[0032] Figure 9 It is a structural diagram of the upper top component in the upper top module;

[0033] Figure 10 It is a schematic diagram of the planar structure of the blanking component and the dividing component;

[0034] Figure 11 It is a schematic diagram of the axial structure of the blanking component and the dividing component;

[0035] Figure 12 It is a structural diagram of the material distribution component;

[0036] Figure 13 It is a structural diagram of the blanking module;

[0037] Figure 14 This is a comparison of the nail sleeve after annealing with and without an argon protection device.

[0038] In the figure, 1. Vibration plate loading assembly; 2. Direct vibration assembly; 3. Material distribution and transfer assembly; 31. Cylinder bracket; 32. Transfer cylinder; 33. Slide plate; 34. Fixed plate; 35. Transfer block; 36. Through-beam sensor; 4. Retrieving module; 41. Four-axis robot; 42. Clamping assembly; 421. Cylinder mounting seat; 422. Finger cylinder; 423. Clamping claw; 5. Lower center module; 51. Base; 52. Lifting drive mechanism; 53. Sliding seat; 54. Fixed seat; 55. Rotary drive mechanism; 56. Lower center assembly; 561. Lower center seat; 562. Lower center shaft; 563. Copper seat mounting body; 564. Copper seat; 565. Core shaft; 57. Synchronous wheel; 6. Unloading module; 61. Unloading air Cylinder; 62. Push rod; 7. Heating mechanism; 71. Position adjustment assembly; 72. Heater; 73. Heating coil; 731. Heating hole; 8. Upper center module; 81. Z-axis lifting assembly; 82. Upper center assembly; 821. Upper center seat; 822. Upper center shaft; 823. Center head; 9. Blanking assembly; 91. Bin; 92. Good product blanking pipe; 93. Bad product blanking pipe; 10. Temperature sensor; 11. First mounting plate; 12. Second mounting plate; 13. Mounting frame; 14. Stopper; 15. Distribution assembly; 151. Distribution cylinder; 152. Distribution shaft; 153. Distribution plate; 16. Argon protection device; 161. Argon protection cover; 162. Connector; 163. Air pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] like Figure 1 、 Figure 2As shown, an embodiment of the present invention proposes a fully automatic aviation nail sleeve local annealing machine, which mainly includes an upper top module 8, a heating mechanism 7, a lower top module 5, a blanking assembly 9, a vibration plate feeding assembly 1, a direct vibration assembly 2, a material dividing and transferring assembly 3, a material dividing assembly 15, a blanking module 6, a picking module 4 and other modules, wherein the lower top module 5, the blanking assembly 9, the material dividing and transferring assembly 3 and the picking module 4 are installed on a first mounting plate 11, the vibration plate feeding assembly 1 and the direct vibration assembly 2 are both installed on a second mounting plate 12, the first mounting plate 11 is arranged parallel to each other up and down, and a mounting frame 13 is provided on the first mounting plate 11, the above-mentioned upper top module 8, heating mechanism 7 and material dividing assembly 15 are all installed on the mounting frame 13, and the upper top module 8 is located directly above the lower top module 5.

[0041] like Figure 1 As shown, the discharge port of the vibration plate feeding assembly 1 is connected to the direct vibration assembly 2, and the material distribution and transfer assembly 3 is connected to the direct vibration assembly 2. The nail sleeve is transferred to the direct vibration assembly 2 by vibration transmission through the vibration plate feeding assembly 1, and then the nail sleeve is transferred to the material distribution and transfer assembly 3 in a linear arrangement through the direct vibration assembly 2.

[0042] refer to Figure 3 The material distribution and transfer assembly 3 is mainly composed of a cylinder bracket 31, a transfer cylinder 32, a slide plate 33, a fixed plate 34, a transfer block 35 and other components. The cylinder bracket 31 is fixed on the first mounting plate 11, the transfer cylinder 32 is horizontally fixed on the cylinder bracket 31, the slide plate 33 is horizontally slidably connected to one side of the transfer cylinder 32, and the output end of the transfer cylinder 32 is connected to the slide plate 33 to control the horizontal movement of the slide plate 33; the fixed plate 34 is fixed on the slide plate 33. The transfer block 35 is fixed on the fixed plate 34, wherein at least one transfer groove for transferring a single nail sleeve is provided on the side of the transfer block 35 that is biased toward the direct vibration component 2, and a stopper 14 is provided on the opposite side of the transfer plate and in the transfer direction. The stopper 14 is installed and fixed on one side of the discharge port of the direct vibration component 2. The stopper 14 can prevent the nail sleeve from escaping from the transfer process during the movement of the transfer block 35. A pair of radiation sensors 36 are provided at both ends of the transfer block 35 for detecting the position of the nail sleeve.

[0043] The material picking module 4 is located on one side of the vibration plate loading assembly 1 and the direct vibration assembly 2. The transfer direction of the transfer block 35 is the side where the material picking module 4 is located. When the transfer block 35 transfers the nail sleeve to the designated position, the material picking module 4 will come over to grab it and place it on the lower top module 5.

[0044] like Figure 4As shown, the material picking module 4 is mainly composed of two parts: a four-axis robot 41 and a clamping component 42. The four-axis robot 41 has four moving axes, and the last axis is a rotating axis, which can control the clamping component 42 to rotate in a vertical plane through a cylinder; the clamping component 42 is mainly composed of a cylinder mounting seat 421, a finger cylinder 422 and two clamps 423, wherein the cylinder mounting seat 421 is installed and fixed on the four-axis robot 41, and the finger cylinder 422 is installed and fixed on the cylinder mounting seat 421. The two clamps 423 are connected to the output end of the finger cylinder 422, and the two clamps 423 are controlled to open and close by the finger cylinder 422 to clamp the nail sleeve in the transfer slot.

[0045] Annealing of the nail sleeve is accomplished by the cooperation of the upper top module 8, the lower top module 5 and the heating mechanism 7. Figure 5 As described above, the lower top module 5 is mainly composed of a base 51, a lifting drive mechanism 52, a sliding seat 53, a fixed seat 54, a rotation drive mechanism 55, a lower top assembly 56, etc., wherein the base 51 is vertically installed on the first mounting plate 11, the sliding seat 53 is connected to the slide rail on the base 51 for sliding up and down movement, and the lifting drive mechanism 52 is installed on the base 51, and is driven and connected to the sliding seat 53 through a screw rod to control the sliding seat 53 to move up and down; the fixed seat 54 is installed and fixed on the sliding seat 53, and the rotation drive mechanism 55 and the lower top assembly 56 are arranged side by side on the fixed seat 54.

[0046] refer to Figure 6 , the lower top assembly 56 is mainly composed of a lower top seat 561, a lower top shaft 562, a copper seat mounting body 563, a copper seat 564, a core shaft 565, etc., wherein the lower top seat 561 is fixed on the fixed seat 54, and bearings are provided at the upper and lower ends of the inner side of the lower top seat 561. The lower top shaft 562 is passed through the lower top seat 561 and is rotatably connected to the lower top seat 561 through bearings. A synchronous wheel 57 is provided at the lower end of the lower top shaft 562. The above-mentioned rotation drive mechanism 55 adopts a servo motor. The output end of the servo motor is driven and connected to the synchronous wheel 57 through a synchronous belt. The rotation of the lower top shaft 562 is controlled by the servo motor, thereby driving the nail sleeve to rotate 360° unlimitedly, and the speed can be adjusted;

[0047] The copper seat mounting body 563 is installed and fixed on the upper end of the lower top spindle 562, the copper seat 564 is installed and fixed on the copper seat mounting body 563, and the upper end of the copper seat 564 extends from the top of the copper seat mounting body 563, and the core shaft 565 is installed and fixed in the copper seat 564, and an insertion hole is provided at the top center of the copper seat 564, and the upper end of the core shaft 565 also extends upward from the insertion hole on the copper seat 564. The upper end of the core shaft 565 is truncated cone-shaped, and its shape is adapted to the groove at the top of the nail sleeve. The material taking module 4 will place the nail sleeve upside down on the copper seat 564, and position the nail sleeve through the upper end of the core shaft 565 to ensure the concentricity between the nail sleeve and the lower top assembly 56.

[0048] like Figure 8 、 Figure 9 As shown, the upper top module 8 is mainly composed of two parts: the upper top assembly 82 Z-axis lifting assembly 81 and the upper top assembly 82, wherein the upper top assembly 82 is composed of an upper top seat 821, an upper top shaft 822 and a top head 823. The upper top seat 821 is installed and fixed at the bottom of the Z-axis lifting assembly 81, and bearings are also provided at the upper and lower ends of the inner side of the upper top seat 821. The upper top shaft 822 is passed through the inner side of the upper top seat 821 and is rotatably connected to the upper top seat 821 through the bearing. The lower end of the upper top shaft 822 extends downward from the bottom of the upper top seat 821, and the top head 823 is installed and fixed on the lower end of the upper top shaft 822. The upper top assembly 82 can be lifted and lowered by the Z-axis lifting assembly 81. A retaining spring is also provided on the upper top shaft 822 for connecting the upper top shaft 822 and the bearing. The lower end of the above-mentioned top head 823 is conical in shape, which is used to position the nail sleeve and can meet the positioning of nail sleeves of various specifications.

[0049] A buffer spring is also provided at the lower end of the upper top shaft 822. The buffer spring is located between the top head 823 and the bearing. When the top head 823 descends and presses against the nail sleeve, the top head 823 will retract and the buffer spring will be compressed to play a buffering role and prevent the nail sleeve from being crushed.

[0050] like Figure 8 As shown, the concentricity of the upper top assembly 82 and the lower top assembly 56 is consistent to ensure that the core shaft 565 and the top head 823 can clamp the nail sleeve. An argon protection device 16 is also provided on the upper top seat 821. The argon protection device 16 is composed of an argon protective cover 161, a connector 162 and an air pipe 163. The argon protective cover 161 is a cylindrical shell. The connector 162 is installed and fixed on the cover of the argon protective cover 161, and is used to connect the air pipe 163 to the argon protective cover 161. A through hole is provided on the top of the argon protective cover 161 for the upper top seat 821 to penetrate into the argon protective cover 161. The above-mentioned upper top assembly 82 extends into the interior of the argon protective cover 161 through the through hole.

[0051] like Figure 7 As shown, the heating mechanism 7 is mainly composed of a heater 72, a position adjustment component 71 for adjusting the position of the heater 72, and a heating coil 73 installed on the heater 72. The position adjustment component 71 can adjust the up and down, front and back, left and right positions of the heating coil 73. The heating coil 73 is provided with a heating hole 731 for the nail sleeve to pass through. When working, the top top component 82 rises and falls, and the argon protective cover 161 will cover the heating coil 73, forming a sealed space between the argon protective cover 161 and the heating coil 73. In the argon protection space, the nail sleeve will move upward with the lower top assembly 56, pass through the heating hole 731 on the heating coil 73, extend into the argon protection cover 161, and abut against the top head 823. Then the lower top shaft 562 will drive the nail sleeve to rotate, and the copper seat 564, the core shaft 565 and the top head 823 will rotate together with the nail sleeve, and the outside of the nail sleeve will be evenly heated by the heating coil 73. During heating, argon will be introduced into the nitrogen protection cover to protect the nail sleeve and prevent the nail sleeve from being oxidized during the annealing process.

[0052] refer to Figure 13 The blanking module 6 is mainly composed of a blanking cylinder 61 and a push rod 62. The blanking cylinder 61 is horizontally fixed on the mounting frame 13, and the push rod 62 is connected to the output end of the blanking cylinder 61. The annealed nail sleeve will be quickly pushed into the blanking assembly 9 through the push rod 62, and there is no need for the material taking module 4 to clamp the nail sleeve and then place it on the blanking assembly 9.

[0053] like Figure 10 、 Figure 11 As shown, the blanking assembly 9 mainly includes a silo 91 and two blanking pipes. The silo 91 is installed and fixed on the first mounting plate 11. Two blanking ports are provided at the bottom of the silo 91. The two blanking pipes are respectively installed at the two blanking ports. The two blanking pipes are respectively a good product blanking pipe 92 and a defective product blanking pipe 93; the material dividing assembly 15 is installed on the silo 91.

[0054] like Figure 12 As shown, the dividing component 15 is mainly composed of a dividing cylinder 151, a dividing plate 153, and a dividing shaft 152, wherein the dividing cylinder 151 is installed on the outside of the silo 91, the dividing plate 153 is located on the inside of the silo 91, the dividing shaft 152 is connected to the output end of the dividing cylinder 151, and the other end of the dividing shaft 152 extends into the silo 91 and is connected to the dividing plate 153. The dividing plate 153 is controlled to rotate in a vertical plane by the dividing cylinder 151, and the dividing shaft 152 and the silo 91 are connected through a bearing.

[0055] By rotating the dividing plate 153, the nail sleeve is controlled to fall from the discharge port at the bottom of the hopper 91 into the good product blanking pipe 92 and the defective product blanking pipe 93 respectively. A temperature sensor 10 is provided on the first mounting plate 11. The temperature sensor 10 is used to detect the temperature of the nail sleeve that has completed the annealing operation. If the annealing temperature reaches the predetermined target, it is a good product, otherwise it is a defective product. The good product will fall into the good product blanking pipe 92 through the dividing plate 153, and the defective product will fall into the defective product blanking pipe 93 through the dividing plate 153.

[0056] After the annealing process of the nail sleeve, Figure 14 As shown, it can be clearly seen that without the protection of the argon protection device 16, the nail sleeve is severely oxidized by air after annealing, which has a great impact on the quality of the nail sleeve. When the nail sleeve is protected by the argon protection device 16 during annealing, there is no obvious sign of oxidation, and the annealing quality is significantly improved.

[0057] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A fully automatic aviation nail sleeve local annealing machine, comprising an upper top die set (8) and a heating mechanism (7), wherein the upper top die set (8) comprises an upper top assembly (82) capable of moving up and down and rotating horizontally, and the heating mechanism (7) comprises a heating coil (73) with a heating hole (731) in the middle, characterized in that: Also includes: A lower top module (5) includes a lower top assembly (56) capable of driving the nail sleeve to move up and down and rotate horizontally, and the lower top assembly (56) includes at least a core shaft (565) inserted into the nail sleeve to position the nail sleeve; A blanking assembly (9) having at least two blanking openings, wherein a dividing assembly (15) is provided in the blanking assembly (9), wherein the dividing assembly (15) comprises a dividing plate (153) capable of rotating in a vertical plane, and controls good and defective nail sleeves that have completed the annealing operation to fall into the two blanking openings respectively; A blanking module (6) is horizontally arranged on one side of the lower top module (5) and is used to push the annealed nail sleeve on the lower top assembly (56) into the blanking assembly (9); A material taking module (4) includes a rotatable clamping assembly (42), wherein the clamping assembly (42) can clamp the nail sleeve and insert it onto the core shaft (565); An argon protection device (16) is provided at the bottom of the upper top assembly (82), and the argon protection device (16) can move up and down with the upper top assembly (82) and cover the heating coil (73), forming a closed argon protection space between the argon protection device (16) and the heating coil (73), and the lower top assembly (56) can lift the nail sleeve upward through the heating hole (731) and insert it into the argon protection device (16), and cooperate with the upper top assembly (82) to perform rotational heating; The local annealing machine further comprises a vibration plate feeding assembly (1), a direct vibration assembly (2) docked with the vibration plate feeding assembly (1), and a material distribution and transfer assembly (3) docked with the direct vibration assembly (2); the material taking module (4) clamps the nail sleeve from the material distribution and transfer assembly (3) and places the nail sleeve on the lower top assembly (56); The upper top module (8) also includes a Z-axis lifting component (81), and the upper top component (82) includes an upper top seat (821), an upper top shaft (822) passing through the upper top seat (821), and a top head (823) connected to the lower end of the upper top shaft (822), wherein the upper top seat (821) is installed at the bottom of the Z-axis lifting component (81) and is connected to the output end of the Z-axis lifting component (81), bearings are provided on both the upper and lower sides of the upper top seat (821), the upper top shaft (822) is rotatably connected to the upper top seat (821) through the bearings, and the lower end of the top head (823) is conical.

2. The fully automatic aviation nail sleeve local annealing machine according to claim 1, characterized in that: The material distribution and transfer assembly (3) comprises a cylinder bracket (31), a transfer cylinder (32) horizontally arranged on the cylinder bracket (31), a slide plate (33) horizontally slidably connected to one side of the transfer cylinder (32), a fixed plate (34) installed on the slide plate (33), and a transfer block (35) arranged on the fixed plate (34), wherein the output end of the transfer cylinder (32) is connected to the slide plate (33), the transfer block (35) is provided with a transfer groove for transferring a single nail sleeve, a stopper (14) is provided on the opposite side of the transfer groove and in the transfer direction, the stopper (14) is used to prevent the nail sleeve from leaving the transfer groove during the process of the nail sleeve moving with the transfer block (35), the stopper (14) is installed and fixed on the direct vibration assembly (2), and both ends of the transfer block (35) are provided with a corresponding sensor (36) for detecting the position of the nail sleeve.

3. The fully automatic aviation nail sleeve local annealing machine according to claim 2, characterized in that: The material taking module (4) further comprises a four-axis robot (41), the gripping assembly (42) is mounted on the four-axis robot (41), and the four-axis robot (41) is capable of controlling the gripping assembly (42) to rotate in a vertical plane; The clamping assembly (42) comprises a cylinder mounting seat (421), a finger cylinder (422) arranged on the cylinder mounting seat, and two clamping claws (423) connected to the output end of the finger cylinder (422). The finger cylinder (422) can control the two clamping claws (423) to close and clamp the nail sleeve.

4. The fully automatic aviation nail sleeve local annealing machine according to claim 1, characterized in that: The lower top module (5) further comprises a vertically arranged base (51), a lifting drive mechanism (52) arranged at the lower end of the base (51), a sliding seat (53) connected to the base (51) in an upward and downward sliding manner, a fixed seat (54) installed on one side of the sliding seat (53), and a rotating drive mechanism (55) arranged on the fixed seat (54), wherein the lifting drive mechanism (52) is connected to the sliding seat (53) in a transmission manner through a screw rod, the rotating drive mechanism (55) and the lower top assembly (56) are arranged in parallel on the fixed seat (54), and the rotating drive mechanism (55) is connected to the lower top assembly (56) in a driving manner through a synchronous belt.

5. The fully automatic aviation nail sleeve local annealing machine according to claim 4, characterized in that: The lower top assembly (56) further comprises a lower top seat (561), a lower top shaft (562) passing through the lower top seat (561), a copper seat mounting body (563) mounted on the upper end of the lower top shaft (562), and a copper seat (564) passing through the copper seat mounting body (563), wherein bearings are provided on both upper and lower sides of the lower top seat (561), the lower top shaft (562) is rotatably connected to the lower top seat (561) via the bearings, a synchronous wheel (57) is provided at the lower end of the lower top shaft (562), and the synchronous wheel (57) is connected to the output end of the rotary drive mechanism (55) via a synchronous belt, a through hole is provided at the top center of the copper seat (564), the core shaft (565) is placed in the through hole, and the upper end of the core shaft (565) is truncated.

6. The fully automatic aviation nail sleeve local annealing machine according to claim 1, characterized in that: The argon protection device (16) comprises an argon protection cover (161), a connector (162) connected to the side wall of the argon protection device (16), and an air pipe (163) connected to the connector (162). The top of the argon protection cover (161) is provided with a through hole for the upper top seat (821) to be inserted into the argon protection cover (161).

7. The fully automatic aviation nail sleeve local annealing machine according to claim 1, characterized in that: The heating mechanism (7) further includes a heater (72) connected to the heating coil (73), and a position adjustment component (71) for adjusting the position of the heater (72).

8. The fully automatic aviation nail sleeve local annealing machine according to claim 1, characterized in that: The blanking assembly (9) comprises a silo (91), a good product blanking pipe (92) and a bad product blanking pipe (93), wherein two discharge ports are provided at the bottom of the silo (91), and the good product blanking pipe (92) and the bad product blanking pipe (93) are respectively installed at the two discharge ports; The material distribution assembly (15) further comprises a rotary cylinder arranged outside the silo (91), a material distribution shaft (152) connected to the output end of the rotary cylinder, and the material distribution plate (153) is connected to the material distribution shaft (152) to control the rotation of the material distribution plate (153).

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