An automated production line for anti-loosening nuts

Abstract

This invention discloses an automated production line for anti-loosening nuts, comprising a frame on which are mounted an upper conveyor rail, a lower conveyor rail, a nut feeding device, a plastic sleeve feeding device, a steel ball loading device, and eight identical pushing mechanisms, named as follows: First Pushing Mechanism, Second Pushing Mechanism, Third Pushing Mechanism, Fourth Pushing Mechanism, Fifth Pushing Mechanism, Sixth Pushing Mechanism, Seventh Pushing Mechanism, and Eighth Pushing Mechanism. Each pushing mechanism includes a linear power element, a push rod, and a push plate. One end of the push rod is connected to the linear power element, and the other end is fixedly connected to the push plate. The linear power element drives the push plate to reciprocate back and forth via the push rod. This production line enables automated production of anti-loosening nuts, improving efficiency and reducing manpower.

Description

Technical Field

[0001] This invention relates to the field of nut production equipment technology, specifically to an automated production line for anti-loosening nuts. Background Technology

[0002] Nuts are widely used in various mechanical equipment. However, in some equipment components that are subject to long-term vibration, anti-loosening nuts are needed to secure these components. Existing anti-loosening nuts use a nut body, a plastic sleeve, and a steel ball for installation. The plastic sleeve presses the steel ball against a groove inside the nut body, and the steel ball then seals the threaded groove inside the nut body in the reverse direction, resisting the reverse torque of the nut body when subjected to external vibration, thereby preventing the nut from loosening.

[0003] During the production of this type of locknut, a plastic sleeve needs to be embedded into the bottom of the nut body, while a steel ball needs to be placed in a groove in the nut body. A typical locknut structure requires two steel balls symmetrically pre-placed within the nut body, along with a plastic sleeve. Currently, the production of this type of locknut is limited to manual installation and insertion of the plastic sleeve and steel ball by workers, as there is no readily available complete set of equipment, resulting in low production efficiency. Summary of the Invention

[0004] This invention provides an automated production line for anti-loosening nuts, which can realize the automated production of anti-loosening nuts, improve efficiency and reduce manpower, thereby solving the problems in the background art.

[0005] The technical solution of the present invention is as follows: An automated production line for anti-loosening nuts includes a frame, on which are installed an upper conveying track, a lower conveying track, a nut feeding device, a plastic sleeve feeding device, a steel ball loading device, and eight identical pushing mechanisms. The eight pushing mechanisms are named as follows: first pushing mechanism, second pushing mechanism, third pushing mechanism, fourth pushing mechanism, fifth pushing mechanism, sixth pushing mechanism, seventh pushing mechanism, and eighth pushing mechanism. Each pushing mechanism includes a linear power element, a push rod, and a push plate. One end of the push rod is connected to the linear power element, and the other end of the push rod is fixedly connected to the push plate. The linear power element drives the push plate to move back and forth through the push rod.

[0006] Further: The nut feeding device includes a material groove for loading the nut body. The material groove is provided with several parallel strip slides and a feeding strip groove perpendicular to all the strip slides. All the strip slides are connected to the feeding strip groove. The first pushing mechanism and the second pushing mechanism cooperate with the nut feeding device: the pusher plate of the first pushing mechanism slides in cooperation with the strip slide of the material groove of the nut feeding device, and the pusher plate of the second pushing mechanism slides in cooperation with the feeding strip groove of the material groove of the nut feeding device. A material hole is opened at the bottom of the feeding strip groove, which allows the nut body to pass through. The plastic sleeve feeding device has the same structure as the nut feeding device. The third pushing mechanism and the fourth pushing mechanism cooperate with the plastic sleeve feeding device: the pusher plate of the third pushing mechanism slides in cooperation with the strip slide of the material groove of the plastic sleeve feeding device, and the pusher plate of the fourth pushing mechanism slides in cooperation with the feeding strip groove of the material groove of the plastic sleeve feeding device.

[0007] Furthermore: The fifth, seventh, steel ball loading device, and eighth pushing mechanisms are arranged sequentially from the inlet to the outlet of the upper conveying track. The inlet of the upper conveying track is located directly below the material hole of the nut feeding device, and the pusher plate of the fifth pushing mechanism is horizontally aligned with the inlet of the upper conveying track. The inlet of the lower conveying track is located directly below the material hole of the plastic sleeve feeding device, and the pusher plate of the sixth pushing mechanism is horizontally aligned with the inlet of the lower conveying track. A cross hole is provided on the upper conveying track, and the seventh pushing mechanism is located below the cross hole. The pusher plate of the seventh pushing mechanism is aligned with the cross hole from bottom to top and is vertically aligned with the outlet of the lower conveying track.

[0008] Further: The steel ball loading device includes a stepper motor, a mounting housing, a linear power element, a pressure rod, a pressure plate, and a feed pipe for accommodating the steel ball body. The stepper motor is connected to the mounting housing, and its output shaft drives the mounting housing to rotate. The linear power element is fixedly mounted on the mounting housing. One end of the pressure rod is fixed to the linear power element, and the other end of the pressure rod is fixedly connected to the center of the pressure plate. The output shaft of the stepper motor, the linear power element, the pressure rod, and the pressure plate are coaxially arranged. The pressure plate has a steel ball hole for the steel ball body to pass through. The feed pipe is rotatably connected to the pressure rod, and the outlet end of the feed pipe abuts against the surface of the pressure plate near the pressure rod. The distance between the outlet end of the feed pipe and the pressure plate is less than the distance between the steel ball body and the outlet end of the feed pipe and the center distance of the steel ball hole from the pressure plate. The upper conveying track is also provided with a jacking hole. The eighth jacking mechanism is located below the jacking hole. The pusher plate of the eighth jacking mechanism is aligned with the jacking hole from bottom to top. When the pusher plate of the eighth jacking mechanism is pushed out from bottom to top, the plastic sleeve inside the nut body equipped with the steel ball body can be pushed into the nut body from bottom to top.

[0009] Further: Two blocks are fixedly installed on the upper conveying track to prevent the nut body from disengaging from the upper conveying track, one block being located above the intersection and the other block being located above the jacking hole.

[0010] Beneficial Effects: This solution provides an automated production line for anti-loosening nuts, capable of mass production. Throughout the production process, various mechanical structures enable continuous assembly of the nut body, plastic sleeve body, and steel ball body. The entire assembly process can be completed without human intervention, resulting in high efficiency and labor savings. This is highly beneficial for the large-scale assembly and production of anti-loosening nuts and is worthy of emulation by peers. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall installation structure of the automated production line for anti-loosening nuts in this solution;

[0012] Figure 2 This is a schematic diagram of the overall installation structure of the nut feeding device and the plastic sleeve feeding device in this scheme;

[0013] Figure 3 This is a schematic diagram of the overall installation structure of the steel ball loading device in this scheme;

[0014] Figure 4 This is a schematic diagram of the internal structure of the steel ball loading device in this scheme. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Reference numerals in the accompanying drawings: Frame 1, Plastic sleeve feeding device 2, Nut feeding device 3, Lower conveyor track 4, Cross hole 5a, Top feeding hole 5b, Upper conveyor track 5, Steel ball loading device 6, Receiving device 7, Receiving box 71, Receiving platform 72, First pushing mechanism 81, Second pushing mechanism 82, Third pushing mechanism 83, Fourth pushing mechanism 84, Fifth pushing mechanism 85, Sixth pushing mechanism 86, Seventh pushing mechanism 87, Eighth pushing mechanism 88, Linear power element 8a, Push rod 8b, Push plate 8c, Strip slide 31, Feed strip groove 32, Material hole 3a, Stepper motor 91, Mounting housing 92, Pressure rod 93, Pressure plate 94, Steel ball hole 9a, Nut body 10, Plastic sleeve body 11, Steel ball body 12, Feed pipe 13

[0017] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown, the present invention discloses an automated production line for anti-loosening nuts, including a frame 1, on which are installed an upper conveying track 5, a lower conveying track 4, a nut feeding device 3, a plastic sleeve feeding device 2, a steel ball loading device 6, a first pushing mechanism 81, a second pushing mechanism 82, a third pushing mechanism 83, a fourth pushing mechanism 84, a fifth pushing mechanism 85, a sixth pushing mechanism 86, a seventh pushing mechanism 87, and an eighth pushing mechanism 88.

[0018] It should be noted that the first pushing mechanism 81, the second pushing mechanism 82, the third pushing mechanism 83, the fourth pushing mechanism 84, the fifth pushing mechanism 85, the sixth pushing mechanism 86, the seventh pushing mechanism 87, and the eighth pushing mechanism 88 in this solution have the same components and structure, differing only in size and installation position; the nut feeding device 3 and the plastic sleeve feeding device 2 also have the same components and installation structure, differing only in size and installation position. To avoid redundancy, this solution only describes the structure of the first pushing mechanism 81.

[0019] The first pushing mechanism 81 includes a push rod 8b and a push plate 8c driven by a linear power element 8a such as a hydraulic cylinder, air cylinder or linear motor. One end of the push rod 8b is connected to the linear power element 8a, and the other end of the push rod 8b is fixedly connected to the push plate 8c. The linear power element 8a drives the push plate 8c to move back and forth through the push rod 8b.

[0020] It should be noted that the linear power element 8a will continue to be used in the following description. In this solution, the linear power element 8a refers to the conventional connection structure of the machine that is equipped with a power component such as a hydraulic cylinder, air cylinder or linear motor that can generate linear push and pull force.

[0021] The nut feeding device 3 includes a feed trough with several parallel strip-shaped slides 31 and a feed strip groove 32 perpendicular to all the strip-shaped slides 31. All the strip-shaped slides 31 are connected to the feed strip groove 32. The anti-loosening nut to be assembled includes a nut body 10, a plastic sleeve body 11, and a steel ball body 12. Figure 1 As shown: the nut bodies 10 to be assembled will all be arranged in a rectangular shape and placed in the strip slide 31 of the nut feeding device 3; the plastic sleeve bodies 11 to be assembled will all be arranged in a rectangular shape and placed in the strip slide 31 of the plastic sleeve feeding device 2. The same material tray only needs to have different sizes for the strip slide 31 and the feeding strip trough 32 to complete the loading of the nut bodies 10 or the plastic sleeve bodies 11.

[0022] The first pushing mechanism 81 and the second pushing mechanism 82 cooperate with the nut feeding device 3: the pusher plate 8c of the first pushing mechanism 81 slides in cooperation with the strip-shaped slide 31 of the material groove of the nut feeding device 3, and the nut body 10 is pushed into the feeding strip groove 32 by the first pushing device. The pusher plate 8c of the second pushing mechanism 82 slides in cooperation with the feeding strip groove 32 of the material groove of the nut feeding device 3. The bottom of the feeding strip groove 32 is provided with a material hole 3a, which allows the nut body 10 or the plastic sleeve body 11 to pass through. When the pusher plate 8c of the second pushing mechanism 82 pushes the nut body 10 along the length of the feeding strip groove 32 of the nut feeding device 3, one nut body 10 will fall down through the material hole 3a with each forward push.

[0023] The third pushing mechanism 83 and the fourth pushing mechanism 84 cooperate with the plastic sleeve feeding device 2: the pusher plate 8c of the third pushing mechanism 83 slides with the strip slide 31 of the material trough of the plastic sleeve feeding device 2, and the plastic sleeve body 11 is pushed into the feeding strip groove 32 through the third pushing mechanism; the pusher plate 8c of the fourth pushing mechanism 84 slides with the feeding strip groove 32 of the material trough of the plastic sleeve feeding device 2. The bottom of the feeding strip groove 32 of the plastic sleeve feeding device 2 is also provided with a material hole 3a, which allows the plastic sleeve body 11 to pass through. When the pusher plate 8c of the fourth pushing mechanism 84 pushes the plastic sleeve body 11 along the length of the feeding strip groove 32 of the plastic sleeve feeding device 2, one plastic sleeve body 11 will fall down through the material hole 3a with each forward push.

[0024] The fifth jacking mechanism 85, the seventh jacking mechanism 87, the steel ball loading device 6, and the eighth jacking mechanism 88 are arranged sequentially from the inlet to the outlet of the upper conveying track 5. The inlet of the upper conveying track 5 is located directly below the material hole 3a of the nut feeding device 3. The nut body 10 of the nut feeding device 3 falls directly downwards from the material hole 3a to the inlet of the upper conveying track 5. The pusher plate 8c of the fifth jacking mechanism 85 is horizontally aligned with the inlet of the upper conveying track 5: when the pusher rod 8b of the fifth jacking mechanism 85 moves forward, it can advance the nut body 10 from the inlet of the upper conveying track 5 to the outlet by one station. That is, the plate surface of the pusher plate 8c of the fifth jacking mechanism 85 is aligned with the nut body 10 at the inlet of the upper conveying track 5 and pushes it forward by the distance of one nut body 10, so that the next nut body 10 falling downwards from the material hole 3a of the nut feeding device 3 can continue to fall sequentially to the inlet of the upper conveying track 5.

[0025] The entrance of the lower conveyor track 4 is located directly below the material hole 3a of the plastic sleeve feeding device 2. The pusher plate 8c of the sixth push mechanism 86 is horizontally aligned with the entrance of the lower conveyor track 4. When the pusher rod 8b of the sixth push mechanism 86 moves forward, the plastic sleeve body 11 can be pushed from the entrance of the lower conveyor track 4 to the exit direction by one station. That is, the plate surface of the pusher plate 8c of the sixth push mechanism 86 is aligned with the plastic sleeve body 11 at the entrance of the lower conveyor track 4 and pushes it forward by the distance of one plastic sleeve body 11, so that the next plastic sleeve body 11 falling down from the material hole 3a of the plastic sleeve feeding device 2 can continue to fall sequentially to the entrance of the lower conveyor track 4.

[0026] A cross hole 5a is provided on the upper conveying track 5, and the seventh pushing mechanism 87 is located below the cross hole 5a. The pusher plate 8c of the seventh pushing mechanism 87 is aligned with the cross hole 5a from bottom to top and matches the outlet of the lower conveying track 4. The plastic sleeve is pushed from the inlet to the outlet on the lower conveying track 4 by the sixth pushing mechanism 86. The plastic sleeve located at the outlet of the lower conveying track 4 will be pushed onto the pusher plate 8c of the seventh pushing mechanism 87. The pusher plate 8c of the seventh pushing mechanism 87 will press the plastic sleeve through the cross hole 5a into the nut body 10 located at the cross hole 5a of the upper conveying track 5 from bottom to top, thereby completing the assembly of the nut body 10 and the plastic sleeve body 11.

[0027] Under normal circumstances, the plastic sleeve body 11 is coaxially pressed into the nut body 10 by one-third of its length. This depends mainly on the assembly process of the nut body 10 and the plastic sleeve body 11, and is not discussed in this solution. It should be noted that the above-mentioned "matching horizontal alignment" is a term used to describe the installation limit between the sixth jacking mechanism 86 and the entrance of the upper conveying track 5 in this solution, and the above-mentioned "matching vertical alignment" is a term used to describe the installation limit between the seventh jacking mechanism 87 and the exit of the lower conveying track 4, as well as the intersection of the upper conveying track 5 in this solution, and is only applicable in this solution.

[0028] The steel ball loading device 6 includes a stepper motor 91, a mounting housing 92, a linear power element 8a, a pressure rod 93, a pressure plate 94, and a feed pipe 13 for accommodating the steel ball body 12. The stepper motor 91 is connected to the mounting housing 92, and the output shaft of the stepper motor 91 drives the mounting housing 92 to rotate. The linear power element 8a is fixedly installed inside the mounting housing 92. One end of the pressure rod 93 is fixed to the linear power element 8a, and the other end of the pressure rod 93 is fixedly connected to the center of the surface of the pressure plate 94. The output shaft of the stepper motor 91, the linear power element 8a, the pressure rod 93, and the pressure plate 94 are coaxially arranged. The pressure plate 94 has a steel ball hole 9a for the steel ball body 12 to pass through. The feed pipe 13 is rotatably connected to the pressure rod 93, and the discharge end of the feed pipe 13 is close to the surface of the pressure plate 94, and the gap between the discharge end of the feed pipe 13 and the pressure plate 94 is smaller than that between the steel ball body 12 and the discharge end of the feed pipe 13. The discharge end of the feed pipe 13 and the steel ball hole 9a are at the same distance from the center of the pressure plate 94.

[0029] The upper conveying track 5 is also provided with a jacking hole 5b, which has the same function as the cross hole 5a. The eighth jacking mechanism 88 is located below the jacking hole 5b. The pusher plate 8c of the eighth jacking mechanism 88 is aligned with the jacking hole 5b from bottom to top. The pusher plate 8c of the eighth jacking mechanism 88 pushes out from bottom to top, pushing the plastic sleeve inside the nut body 10, which is equipped with the steel ball body 12, into the nut body 10 from bottom to top, thereby completing the final assembly process of the nut body 10, the plastic sleeve, and the steel ball body 12.

[0030] The following describes the technical implementation of this solution through a specific assembly process: (e.g.) Figure 1 and Figure 2 As shown, a nut body 10 and a plastic sleeve body 11 are respectively placed in the nut feeding device 3 and the plastic sleeve feeding device 2. First, the nut body 10 is pushed into the entrance of the upper conveying track 5 by the first pushing mechanism 81 and the second pushing mechanism 82. Then, the fifth pushing mechanism 85 pushes the nut body 10 from the entrance of the upper conveying track 5 towards the exit direction. This process is repeated until the first nut body 10 reaches the intersection of the upper conveying track 5.

[0031] The feeding method for the plastic sleeve is the same as that for the nut body 10. The plastic sleeve body 11 is gradually pushed to the outlet of the lower conveying track 4 by the sixth pushing mechanism 86, which is also pushed onto the pusher plate 8c of the seventh pushing mechanism 87. The pusher plate 8c of the seventh pushing mechanism 87 pushes the plastic sleeve from bottom to top into the nut body 10 located at the cross hole 5a of the upper conveying track 5. At this point, the first step of the installation process between the plastic sleeve body 11 and the nut body 10 is completed.

[0032] The nut feeding device 3 and the fifth pushing mechanism 85 continue to work together until the nut body 10, which has completed the first installation process, is pushed to the next station: directly below the pressure plate 94. Driven by the linear power element 8a and the pressure rod 93, the pressure plate 94 extends downward into the nut body 10. Then, the stepper motor 91 drives the linear power element 8a, the pressure rod 93, and the pressure plate 94 to rotate through the mounting housing 92, but the feed pipe 13 remains fixed. When the ball bearing hole 9a on the pressure plate 94 aligns vertically with the outlet end of the feed pipe 13, the ball bearing 12 inside the feed pipe 13 falls downward into the ball bearing hole 9a on the pressure plate 94 under its own weight. After passing through the ball bearing hole 9a, the ball bearing 12 rolls laterally into the groove on the inner wall of the nut body 10.

[0033] It should be noted that after the pressure plate 94 moves downward, it does not directly contact the plastic sleeve, but leaves a gap for the steel ball body 12 to pass through. This is adjusted according to the production process parameters and does not affect the technical implementation of this solution. Then, the stepper motor 91 drives the pressure plate 94 to rotate until the discharge end of the feed pipe 13 is misaligned with the steel ball hole 9a on the pressure plate 94. At this point, the steel ball body 12 no longer falls downward from the feed pipe 13.

[0034] Linear power element 8a lifts pressure plate 94 upward via pressure rod 93, causing pressure plate 94 to detach from nut body 10. Then, the fifth pushing mechanism 85 continues to push nut body 10 along the inlet-to-outlet direction of upper conveyor track 5 to the jacking hole 5b, which is above the pusher plate 8c of the eighth pushing mechanism 88. The pusher plate 8c of the eighth pushing mechanism 88 pushes the plastic sleeve body 11 upward, causing the plastic sleeve body 11, which contains steel ball body 12, to fully enter the nut body 10. This completes the assembly of a single nut body 10, steel ball body 12, and plastic sleeve body 11. Throughout the process, the nut body 10 located on upper conveyor track 5 is pushed by the fifth pushing mechanism 85, with each push distance equal to the outer diameter of one nut body 10. Repeating this process forms the entire assembly line.

[0035] like Figure 1As shown, a receiving device 7 is also installed on the frame 1. This receiving device 7 includes a receiving box 71 and a receiving platform 72. The outlet of the upper conveyor track 5 is located above the receiving box 71. The receiving box 71 is placed on the receiving platform 72. Linear power elements 8a are installed on the receiving platform 72 in both the longitudinal and transverse directions. The linear power elements 8a are used to drive the receiving box 71 to move longitudinally or transversely on the platform 72 in a stepping manner. By arranging sensors inside the receiving box 71 or by directly pre-setting the distance the receiving box 71 moves in the longitudinal or transverse direction each time via a computer, the receiving box 71 can receive materials as needed. When the receiving box 71 is full, it automatically detaches from the platform 72, thus completing the automatic material receiving process.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated production line for lock nuts, characterized by: The application relates to a nut feeding device, a plastic sleeve feeding device and a steel ball loading device, which are combined with a rack (1) to form a nut feeding device, a plastic sleeve feeding device and a steel ball loading device, and eight identical push mechanisms, which are respectively named as a first push mechanism (81), a second push mechanism (82), a third push mechanism (83), a fourth push mechanism (84), a fifth push mechanism (85), a sixth push mechanism (86), a seventh push mechanism (87) and an eighth push mechanism (88). The push mechanism comprises a linear power element (8a), a pushing rod (8b) and a pushing plate (8c), one end of the pushing rod (8b) is connected with the linear power element (8a), the other end of the pushing rod (8b) is fixedly connected with the pushing plate (8c), and the pushing plate (8c) is driven by the linear power element (8a) to move back and forth through the pushing rod (8b). The nut feeding device (3) comprises a chute for loading nut bodies (10), a plurality of parallel strip-shaped slides (31) and a feeding strip-shaped groove (32) which is vertically arranged with all the strip-shaped slides (31), and all the strip-shaped slides (31) are communicated with the feeding strip-shaped groove (32). The first push mechanism (81) and the second push mechanism (82) are matched with the nut feeding device (3), the pushing plate (8c) of the first push mechanism (81) is slidably matched with the strip-shaped slide (31) of the chute of the nut feeding device (3), and the pushing plate (8c) of the second push mechanism (82) is slidably matched with the feeding strip-shaped groove (32) of the chute of the nut feeding device (3). The bottom of the feeding strip-shaped groove (32) is provided with a material hole (3a) through which the nut body (10) passes. The plastic sleeve feeding device (2) has the same structure as the nut feeding device (3), the third push mechanism (83) and the fourth push mechanism (84) are matched with the plastic sleeve feeding device (2), the pushing plate (8c) of the third push mechanism (83) is slidably matched with the strip-shaped slide (31) of the chute of the plastic sleeve feeding device (2), and the pushing plate (8c) of the fourth push mechanism (84) is slidably matched with the feeding strip-shaped groove (32) of the chute of the plastic sleeve feeding device (2). The steel ball loading device (6) comprises a stepping motor (91), a mounting shell (92), a linear power element (8a), a pressing rod (93), a pressing disc (94) and a feeding pipe (13) for containing steel ball bodies (12), the stepping motor (91) is connected with the mounting shell (92), and the mounting shell (92) is driven to rotate by the output shaft of the stepping motor (91).The linear power element (8a) is fixedly installed in the mounting shell (92), one end of the pressing rod (93) is fixed with the linear power element (8a), the other end of the pressing rod (93) is fixedly connected with the center of the disc surface of the pressing disc (94), the output shaft of the stepping motor (91), the linear power element (8a), the pressing rod (93) and the pressing disc (94) are coaxially arranged, the pressing disc (94) is provided with a steel ball hole (9a) for the steel ball body (12) to pass through; the feeding pipe (13) is rotatably connected with the pressing rod (93), the discharging end of the feeding pipe (13) abuts on the disc surface of the pressing disc (94) close to the pressing rod (93), the distance between the discharging end of the feeding end and the pressing disc (94) is less than the steel ball body (12), the distance between the discharging end of the feeding pipe (13) and the center of the pressing disc (94) is the same; the upper conveying track (5) is further provided with a top feeding hole (5b), the eighth pushing mechanism (88) is located below the top feeding hole (5b), the plate surface of the pushing plate (8c) of the eighth pushing mechanism (88) is aligned with the top feeding hole (5b) from bottom to top, when the pushing plate (8c) of the eighth pushing mechanism (88) is pushed out from bottom to top, the plastic sleeve in the nut body (10) assembled with the steel ball body (12) can be top-fed into the nut body (10) from bottom to top.

2. The automated lock nut production line of claim 1, wherein: The fifth pushing mechanism (85), the seventh pushing mechanism (87), the steel ball loading device (6), and the eighth pushing mechanism (88) are arranged in sequence from the inlet to the outlet of the upper conveying track (5). The inlet of the upper conveying track (5) is located directly below the material hole (3a) of the nut feeding device (3). The pushing plate (8c) of the fifth pushing mechanism (85) is horizontally aligned with the inlet of the upper conveying track (5). The inlet of the lower conveying track (4) is located directly below the material hole (3a) of the plastic sleeve feeding device (2). The pushing plate (8c) of the sixth pushing mechanism (86) is horizontally aligned with the inlet of the lower conveying track (4). The upper conveying track (5) is provided with a cross hole (5a). The seventh pushing mechanism (87) is located directly below the cross hole (5a). The pushing plate (8c) of the seventh pushing mechanism (87) is aligned with the cross hole (5a) from bottom to top and is vertically aligned with the outlet of the lower conveying track (4).

3. The automated lock washer production line of claim 1, wherein: Two blocks are fixedly installed on the upper conveying track (5) to prevent the nut body (10) from being separated from the upper conveying track (5). One of the blocks is located above the cross hole, and the other block is located above the jacking hole (5b).

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