Lock nut assembly machine

Abstract

The application relates to a locking nut combination machine which comprises a rack and an assembling platform, a riveting mechanism and a discharging channel are arranged on the assembling platform respectively, a lock piece feeding mechanism is arranged on one side of the rack and located at one side of the assembling platform, and a nut feeding track extending to the assembling platform is arranged on one side of the lock piece feeding mechanism; the lock piece feeding mechanism comprises a guide rod extending to the nut feeding track, a pre-installation mechanism is arranged on the nut feeding track, the pre-installation mechanism comprises a supporting seat installed on the nut feeding track, and the metal lock piece is installed into the nut and conveyed to the assembling platform. The application is automatically fed by the lock piece feeding mechanism, the metal lock piece enters the supporting seat under the guidance of the guide rod, the metal lock piece in the supporting seat enters the nut in the nut feeding track, and then is conveyed to the riveting mechanism of the assembling platform for riveting and fixing, so that the problems of excessive labor intensity of workers and low production efficiency caused by the operation of manually placing the metal lock piece in the nut are solved.

Description

Technical Field

[0001] This application relates to the technical field of nut assembly, and in particular to a locking nut assembly machine. Background Technology

[0002] Lock nuts are a type of nut widely used in industries such as machinery. Typically, a lock nut consists of a metal locking plate and a nut, with the metal locking plate fixed inside the nut by stamping and riveting.

[0003] Currently, Chinese patent CN2045034U discloses a metal insert hexagonal locking nut, which adds a spring plate to the top of the nut body and leaves a pressing step at the top of the nut body, so that the spring plate is pressed under the step and fixed in the nut body.

[0004] Regarding the aforementioned technologies, current locking nuts are typically secured by manually placing a metal locking plate into the nut and then riveting it in place. The inventor believes that this manual processing method is not only physically demanding for workers but also inefficient, and therefore requires improvement. Summary of the Invention

[0005] To address the problem of excessive labor intensity and low production efficiency caused by manually placing metal locking plates onto nuts, this application provides a nut locking assembly machine.

[0006] The locking nut assembly machine provided in this application adopts the following technical solution: A locking nut assembly machine includes a frame and an assembly platform mounted on the frame. A riveting mechanism is provided at the assembly platform, and a discharge channel is provided on one side of the riveting mechanism. A locking plate feeding mechanism is provided on the frame and on one side of the assembly platform, and a nut feeding track extending to the assembly platform is provided on one side of the locking plate feeding mechanism. The locking plate feeding mechanism includes a guide rod for mounting a metal locking plate, and the guide rod extends to the nut feeding track. A pre-installation mechanism is provided on the nut feeding track. The pre-installation mechanism includes a support seat mounted on the nut feeding track. The metal locking plate enters the support seat, is installed inside the nut, and is conveyed to the assembly platform.

[0007] By adopting the above technical solution, the locking plate feeding mechanism automatically feeds the metal locking plate into the support seat under the guidance of the guide rod. Inside the support seat, the metal locking plate enters the nut in the nut feeding track and is then transported to the riveting mechanism of the assembly platform for riveting and fixing. This solves the problem of excessive labor intensity and low production efficiency caused by manually placing the metal locking plate into the nut.

[0008] Preferably, the pre-installation mechanism further includes a push rod vertically disposed on one side of the support base and corresponding to the metal locking piece, and an extension sleeve protruding from the upper part of the support base. The guide rod is inserted into the extension sleeve, and there is a gap between the bottom of the guide rod and the top wall of the nut feeding track. A material channel is provided in the middle of the nut feeding track, and the extension sleeve is located on one side of the material channel. A push cylinder is installed on the frame to drive the push rod to slide back and forth. The push rod is inserted into the support base and corresponds to the extension sleeve, pushing the metal locking piece into the nut in the material channel.

[0009] By adopting the above technical solution, the guide rod stably enters the extension sleeve for auxiliary support. The extension sleeve is located on one side of the material channel. The push cylinder drives the push rod to push the metal locking piece at the extension sleeve into the nut in the material channel. As the nut is conveyed, the metal locking pieces can fall into the corresponding nut one by one, making the process more controllable.

[0010] Preferably, the locking plate feeding mechanism further includes an adjustment structure installed on the frame corresponding to the guide rod; the adjustment structure also includes a pressing gripper located below the support gripper, and a lifting cylinder for driving the pressing gripper to rise and fall is installed on the frame; a pressing groove is provided at the bottom of the pressing gripper.

[0011] By adopting the above technical solution, the lifting cylinder drives the lifting of the pressing jaws. During the metal locking plate unloading process, the pressing jaws rise to provide space for the placement of the metal locking plates. Then the pressing jaws descend, and the pressing groove abuts against the upper part of the metal locking plate and presses the metal locking plate downward to prevent the metal locking plate from being stuck on the guide rod. This also reduces the gap between the metal locking plates, making the metal locking plates fit tightly in sequence, which facilitates accurate unloading and pushing into the nut.

[0012] Preferably, the adjustment structure includes a pre-clamping jaw fixed to the frame and clamped to the guide rod, and a support jaw fixed above the support jaw; a locking plate feed sensor corresponding to the upper part of the guide rod is installed on the frame above the pre-clamping jaw.

[0013] By adopting the above technical solution, the pre-clamping jaws and the locking plate feeding sensor are used for quantitative feeding of metal locking plates. The setting of the supporting jaws allows the process of the metal locking plates sliding down the long guide rod to be carried out in segments, and several metal locking plates are more likely to stick together tightly, reducing the problem of metal locking plates getting stuck on the guide rod and causing the feeding process to be unsmooth.

[0014] Preferably, a pre-compression structure is installed on the side of the nut feeding track near the assembly platform, and a fixed seat is installed on the nut feeding track. The pre-compression structure includes a connecting rod fixedly connected to one side of the push rod and an extrusion block movably connected to the fixed seat. The extrusion block extrudes the metal locking piece inside the nut.

[0015] By adopting the above technical solution, on the one hand, the installation of the pre-clamping jaws, support jaws, and pressing jaws on the frame creates a certain spatial distance between the support base and the frame, providing a working section for pre-pressing. The connecting rod and push rod are fixedly connected, and the pushing cylinder can simultaneously drive the push rod and connecting rod to move horizontally, achieving reasonable and efficient utilization of the structure. On the other hand, the extrusion block pre-presses the metal locking plate pushed by the push rod into the nut, which can reduce the occurrence of failures during the later material detection and riveting operations caused by the metal locking plate possibly tilting or inaccurately dropping material onto the nut in the early stage.

[0016] Preferably, a plurality of the compression blocks are spaced apart at the bottom of the lifting plate, and the lifting plate is movably connected to the fixed seat by a compression spring; a relief groove is provided on the side wall of the lifting plate near the connecting rod, and the bottom of the relief groove forms an inclined surface that slopes from bottom to top away from the connecting rod, and the connecting rod is inserted into the relief groove and abuts against the inclined surface.

[0017] By adopting the above technical solution, the compression spring enables the lifting plate to have an upward restoring force after the connecting rod abuts and descends, thus avoiding obstruction of the nut's conveyance; when the connecting rod is inserted into the clearance groove and abuts against the inclined surface, the extrusion block can descend and abut against the metal locking plate inside the nut; as the nut is conveyed in the material channel, the spaced extrusion blocks can pre-press the metal locking plate inside the same nut multiple times.

[0018] Preferably, the assembly platform is provided with a rotatable turntable with several grooves spaced apart on its sidewalls, the nut feeding track extends toward the turntable, the material channel corresponds to the grooves, a material shortage detection mechanism is provided on the side of the frame away from the nut feeding track, and the riveting mechanism is provided on the other side of the material shortage detection mechanism; the discharge channel is inclined.

[0019] Preferably, a mounting bracket is movably connected above the turntable within the frame, and a drive cylinder for raising and lowering the mounting bracket is fixed to the upper part of the frame. The material-free detection mechanism is a detection contact fixed to one side of the mounting bracket; the detection contact is inserted into a nut and contacts a metal locking plate; when the detection contact contacts the nut, a material-free signal is generated.

[0020] Preferably, the riveting mechanism is a riveting head fixed to the side of the mounting frame near the discharge channel.

[0021] Preferably, the upper end face of the frame and the assembly platform are inclined to match the discharge channel; a nut feeding sensor is provided on the frame at the connection between the nut feeding track and the turntable.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The locking plate feeding mechanism automatically feeds the metal locking plate into the support seat under the guidance of the guide rod. Inside the support seat, the metal locking plate enters the nut in the nut feeding track and is then conveyed to the riveting mechanism of the assembly platform for riveting and fixing. This solves the problem of excessive labor intensity and low production efficiency caused by manually placing the metal locking plate into the nut. 2. The pre-feeding jaws are used for accurate feeding of the metal locking plates. The supporting jaws, located in the middle of the guide rod, provide mid-section support for the descending metal locking plates, which facilitates the aggregation of the metal locking plates and reduces their retention. The pressing jaws, driven by the lifting cylinder, can rise to make way for the descending metal locking plates, and after the metal locking plates descend, they can also descend and press the metal locking plates down through the pressing groove, preventing the metal locking plates from remaining on the guide rod, reducing the gaps between the metal locking plates, and ensuring that the metal locking plates are tightly attached one after another, which facilitates accurate feeding and pushing into the nut. 3. On the one hand, by utilizing the installation of the pre-clamping jaws, support jaws, and pressing jaws on the frame, a certain spatial distance is formed between the support base and the frame, providing a working section for pre-pressing; the connecting rod and push rod are fixedly connected, and the pushing cylinder can simultaneously drive the push rod and connecting rod to move horizontally, realizing the rational and efficient use of the structure; on the other hand, by using the extrusion block to pre-press the metal locking plate pushed by the push rod into the nut, it can reduce the occurrence of failures during the later material detection and riveting operations caused by the possibility of tilting or inaccurate placement of the metal locking plate when it falls onto the nut in the early stage; 4. The compression spring gives the lifting plate a restoring force to rise after the connecting rod abuts and descends, thus avoiding obstruction of the nut's conveying; when the connecting rod is inserted into the relief groove and abuts against the inclined surface, the extrusion block can descend and abut against the metal locking plate inside the nut; as the nut is conveyed in the material channel, the spaced extrusion blocks can pre-press the metal locking plate inside the same nut multiple times. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the locking nut assembly machine according to Embodiment 1 of this application; Figure 2 This is Example 1 of this application. Figure 1 An enlarged schematic diagram of part A in the middle; Figure 3 This is a partial cross-sectional view of the push rod inserted into the extension sleeve in Embodiment 1 of this application. Figure 4 This is a partial structural diagram of the riveting head and detection contact mounted on the mounting bracket in Embodiment 1 of this application. Figure 5 This is a partial structural diagram of the fixing seat installed on the nut feed rail in Embodiment 2 of this application; Figure 6 This is a partial cross-sectional view of the lifting plate installed in the fixed base in Embodiment 2 of this application. Figure 7 This is a schematic diagram of the structure of the extrusion block installed on the lifting plate in Embodiment 2 of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Drive cylinder; 12. Mounting frame; 13. Lifting cylinder; 14. Pushing cylinder; 2. Assembly platform; 21. Turntable; 211. Groove; 22. Discharge channel; 3. Locking plate feeding mechanism; 31. Guide rod; 32. Adjustment structure; 321. Preparatory gripper; 322. Support gripper; 323. Pressing gripper; 3231. Pressing groove; 4. Nut feeding track; 41. Material channel; 5. No material detection mechanism; 51. Detection contact; 6. Riveting mechanism; 61. Riveting head; 7. Pre-installation mechanism; 71. Support base; 72. Extension sleeve; 73. Push rod; 8. Fixed base; 81. Lifting groove; 9. Pre-compression structure; 91. Connecting rod; 92. Extrusion block; 10. Lifting plate; 101. Compression spring; 102. Relief groove; 1021. Inclined surface. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1 Embodiment 1 of this application discloses a locking nut assembly machine, referring to... Figure 1 The assembly includes a frame 1 and an assembly platform 2 mounted on the frame 1. A locking plate feeding mechanism 3 is provided on the frame 1 and in front of the assembly platform 2. A nut feeding track 4 extending to the assembly platform 2 is provided on the right side of the locking plate feeding mechanism 3. Nuts are conveyed to the assembly platform 2 along the nut feeding track 4, and metal locking plates are conveyed to the nut feeding track 4 by the locking plate feeding mechanism 3 to achieve initial installation on the nuts.

[0027] Reference Figure 1 The locking plate feeding mechanism 3 includes a guide rod 31. A metal locking plate vibrating plate is provided on one side of the frame 1. The guide rod 31 is connected to the metal locking plate vibrating plate, and the metal locking plate is output from the metal locking plate vibrating plate and sleeved on the guide rod 31. The upper part of the guide rod 31 is inclined from top to bottom towards the direction close to the frame 1 to form an inclined end, which facilitates the feeding of the metal locking plate. The lower part of the guide rod 31 is bent and extends downward to the upper end wall of the nut feeding track 4.

[0028] Reference Figure 1 The locking plate feeding mechanism 3 also includes an adjustment structure 32 installed on the frame 1 at a position corresponding to the guide rod 31; the adjustment structure 32 includes a pre-clamping claw 321 fixed to the frame 1 and clamped to the guide rod 31, and the pre-clamping claw 321 clamps the top of the guide rod 31 at the point where it bends downward.

[0029] Reference Figure 1A locking plate feed sensor is installed on the frame 1 above the preparatory gripper 321, corresponding to the upper inclined end of the guide rod 31. When the metal locking plate between the preparatory gripper 321 and the locking plate feed sensor reaches the required feed amount, which corresponds to the position of the locking plate feed sensor, the locking plate feed sensor outputs a signal, and the metal locking plate vibratory plate stops feeding. This setting of quantitative feeding of metal locking plates can alleviate the problem of excessive pressure on the metal locking plate at the bottom entering the nut due to excessive feeding of metal locking plates, which increases the difficulty of the metal locking plate entering the nut.

[0030] Reference Figure 1 The adjustment structure 32 also includes a support gripper 322 fixed to the frame 1. The support gripper 322 is located below the pre-grip gripper 321 and is held in the middle of the guide rod 31. When the pre-grip gripper 321 opens, the metal locking piece falls along the guide rod 31 and is supported by the support gripper 322.

[0031] Reference Figure 1 , 2 The adjustment structure 32 also includes a pressing gripper 323 located below the support gripper 322. A lifting cylinder 13 is installed on the frame 1. The lifting cylinder 13 drives the pressing gripper 323 to rise and fall. The bottom of the pressing gripper 323 is provided with a pressing groove 3231. The pressing groove 3231 of the pressing gripper 323 abuts against the metal locking piece. When the lifting cylinder 13 descends, the pressing gripper 323 presses the metal locking piece downward, reducing the gap between the metal locking pieces and making the process of installing the metal locking piece on the nut smoother.

[0032] Reference Figure 1 , 2 A pre-installation mechanism 7 is provided on the nut feeding track 4. The pre-installation mechanism 7 includes a support seat 71 and an extension sleeve 72 installed on the nut feeding track 4. The extension sleeve 72 protrudes from the upper part of the support seat 71. A material channel 41 is provided in the middle of the nut feeding track 4. Nuts are conveyed towards the assembly platform 2 in the material channel 41. The extension sleeve 72 is located above the side wall of the nut feeding track 4 on one side of the material channel 41. The guide rod 31 is inserted into the extension sleeve 72. The metal locking piece enters the support seat 71 along the extension sleeve 72.

[0033] Reference Figure 1 , 3 The pre-installation mechanism 7 also includes a push rod 73 vertically disposed on one side of the support base 71. A push cylinder 14 is installed on the frame 1. The push cylinder 14 drives the push rod 73 to slide back and forth. There is a gap between the bottom of the guide rod 31 and the top wall of the nut feed track 4 with a metal locking piece. The push rod 73 can be inserted into the support base 71 and corresponds to the metal locking piece on the side wall of the nut feed track 4. The push rod 73 pushes the metal locking piece into the nut conveyed on the feed channel 41.

[0034] Reference Figure 1 ,4 The assembly platform 2 is equipped with a rotatable turntable 21 with several grooves 211 spaced apart on its side wall. The nut feeding track 4 extends toward the turntable 21, and the material channel 41 corresponds to the grooves 211, so that the nut accurately enters the turntable 21 and rotates with the turntable 21. A nut feeding sensor is set on the frame 1 at the connection between the nut feeding track 4 and the turntable 21. When no nut is detected, a no-material signal is generated, which stops the turntable 21 from working.

[0035] Reference Figure 1 , 4 A drive cylinder 11 is fixed above the frame 1. A mounting frame 12, which is fixed to the drive cylinder 11, is movably connected to the frame 1 above the turntable 21. The drive cylinder 11 drives the mounting frame 12 to rise and fall. A material shortage detection mechanism 5 is fixed on the side of the mounting frame 12 near the nut feed rail 4. The material shortage detection mechanism 5 is a detection contact 51 fixed on the side of the mounting frame 12 near the nut feed rail 4. The detection contact 51 corresponds to the groove 211 above the turntable 21. When the mounting frame 12 descends, the detection contact 51 inserts into the nut and contacts the metal locking piece. When there is no metal locking piece in the nut, the detection contact 51 contacts the nut to generate a material shortage signal, and the turntable 21 stops working.

[0036] Reference Figure 1 , 4 On the other side of the material-free detection mechanism 5, a riveting mechanism 6 is provided. On the assembly platform 2 and on the other side of the riveting mechanism 6, a discharge channel 22 is provided. The riveting mechanism 6 is a riveting head 61 fixed to the mounting frame 12 near the discharge channel. The discharge channel 22 is inclined. The upper end face of the frame 1 and the assembly platform 2 are inclined in coordination with the discharge channel 22 to facilitate the discharge of the finished nut after riveting.

[0037] The working process of Embodiment 1 of this application is as follows: The metal locking plate in the metal locking plate vibratory plate is output along the guide rod 31 and abuts against the preparatory gripper 321 until the metal locking plate feed amount reaches the locking plate feed sensor. At this time, the metal locking plate stops feeding. Then the preparatory gripper 321 opens outward, and the metal locking plate descends along the guide rod 31 to the support gripper 322. Then the support gripper 322 opens outward, and the metal locking plate enters the support base 71 from the extension sleeve 72 along the guide rod 31. The lifting cylinder 13 drives the pressing gripper 323 to descend, and the pressing groove 3231 abuts against and squeezes the metal locking plate downward.

[0038] The nut is fed to the turntable 21 along the feed channel 41 of the nut feed track 4. The push cylinder 14 pushes the push rod 73 to push the metal locking piece at the bottom of the guide rod 31 into the nut. The nut with the metal locking piece pre-installed enters the groove 211 of the turntable 21. The nut feed sensor senses whether the nut is being fed normally. When there is no material, a no-material signal is generated and the turntable 21 stops working.

[0039] Turntable 21 delivers a nut with a metal locking plate to detection contact 51. Detection contact 51 is inserted into the nut and contacts the metal locking plate. When there is no metal locking plate in the nut, the detection contact 51 contacts the nut and generates a no-material signal, and turntable 21 stops working.

[0040] Turntable 21 transports the nut with metal locking plate after inspection to the riveting head for riveting, and finally the turntable 21 transports the riveted nut to the discharge channel for discharge.

[0041] Example 2 Unlike Example 1, referring to Figure 5 , 6 In Embodiment 2 of this application, a fixed seat 8 is installed on the side wall of the nut feed track 4 and on the side of the support seat 71 away from the nut feed end. A liftable lifting plate 10 is installed in the fixed seat 8, and a lifting groove 81 that cooperates with the lifting plate 10 is opened in the fixed seat 8. The top two ends of the lifting plate 10 and the lifting groove 81 are connected by a compression spring 101. After the lifting plate 10 descends, it automatically rises and resets under the force of the compression spring 101.

[0042] Reference Figure 5 , 6 A pre-compression structure 9 is installed on the nut feed rail 4 at the fixed seat 8. The pre-compression structure 9 includes a connecting rod 91 that is fixedly connected to the push rod 73 and bent and extended to correspond to the fixed seat 8.

[0043] Reference Figure 6 , 7 A clearance groove 102 is provided in the middle of the side wall of the lifting plate 10 near the connecting rod 91. The bottom of the clearance groove 102 forms an inclined surface 1021 that slopes from bottom to top away from the connecting rod 91. The connecting rod 91 is inserted into the clearance groove 102 and abuts against the inclined surface 1021. The end side wall of the connecting rod 91 cooperates with the inclined surface 1021. When the connecting rod 91 moves synchronously with the push rod 73, the end of the connecting rod 91 is laterally pressed towards the lifting plate 10. Under the guidance of the inclined surface 1021, the lifting plate 10 can be driven to descend.

[0044] Reference Figure 7 The pre-compression structure 9 also includes several compression blocks 92 fixed at intervals to the bottom of the lifting plate 10. The bottom sidewalls of the compression blocks 92 are rounded to reduce friction with the metal locking plates. The compression blocks 92 compress the metal locking plates in the corresponding nuts one by one. As the nuts are conveyed in sequence, the spaced compression blocks 92 can pre-compress the metal locking plates in the same nut multiple times, improving the installation accuracy of the metal locking plates in the nuts.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A locking nut assembly machine, comprising a frame (1) and an assembly platform (2) mounted on the frame (1), wherein a riveting mechanism (6) is provided at the assembly platform (2), and a discharge channel (22) is provided on one side of the riveting mechanism (6), characterized in that: A locking plate feeding mechanism (3) is provided on the frame (1) and on one side of the assembly platform (2). A nut feeding track (4) extending to the assembly platform (2) is provided on one side of the locking plate feeding mechanism (3). The locking plate feeding mechanism (3) includes a guide rod (31) for the metal locking plate to be fitted. The guide rod (31) extends to the nut feeding track (4). A pre-installation mechanism (7) is provided on the nut feeding track (4). The pre-installation mechanism (7) includes a support seat (71) installed on the nut feeding track (4). The metal locking plate enters the support seat (71), is installed in the nut, and is transported to the assembly platform (2). The locking plate feeding mechanism (3) also includes an adjustment structure (32) installed on the frame (1) at a position corresponding to the guide rod (31); the adjustment structure (32) includes a pre-clamping jaw (321) fixed to the frame (1) and clamping the guide rod (31) and a supporting jaw (322), the pre-clamping jaw (321) being fixed above the supporting jaw (322); a locking plate feeding sensor corresponding to the upper part of the guide rod (31) is installed on the frame (1) above the pre-clamping jaw (321); The adjustment structure (32) also includes a pressing gripper (323) located below the support gripper (322), and a lifting cylinder (13) for driving the pressing gripper (323) to rise and fall is installed on the frame (1); a pressing groove (3231) is provided at the bottom of the pressing gripper (323).

2. The locking nut assembly machine according to claim 1, characterized in that: The pre-installation mechanism (7) also includes a push rod (73) vertically disposed on one side of the support base (71) and corresponding to the metal locking piece, and an extension sleeve (72) protruding from the upper part of the support base (71). The guide rod (31) is inserted into the extension sleeve (72) and there is a gap between the bottom of the guide rod (31) and the top wall of the nut feeding track (4). A material channel (41) is provided in the middle of the nut feeding track (4), and the extension sleeve (72) is located on one side of the material channel (41). A push cylinder (14) is installed on the frame (1) to drive the push rod (73) to slide back and forth. The push rod (73) is inserted into the support base (71) and corresponding to the extension sleeve (72), pushing the metal locking piece into the nut in the material channel (41).

3. A locking nut assembly machine according to claim 1, characterized in that: A pre-compression structure (9) is installed on the side of the nut feeding track (4) near the assembly platform (2). A fixed seat (8) is installed on the nut feeding track (4). The pre-compression structure (9) includes a connecting rod (91) fixedly connected to one side of the push rod (73) and an extrusion block (92) movably connected to the fixed seat (8). The extrusion block (92) extrudes the metal locking piece inside the nut.

4. A locking nut assembly machine according to claim 3, characterized in that: Several of the compression blocks (92) are spaced apart at the bottom of the lifting plate (10), and the lifting plate (10) is movably connected to the fixed seat (8) by compression springs (101); a relief groove (102) is provided on the side wall of the lifting plate (10) near the connecting rod (91), and the bottom of the relief groove (102) forms an inclined surface (1021) that slopes from bottom to top away from the connecting rod (91), and the connecting rod (91) is inserted into the relief groove (102) and abuts against the inclined surface (1021).

5. A locking nut assembly machine according to claim 2, characterized in that: The assembly platform (2) is provided with a rotatable turntable (21) with several grooves (211) spaced apart on its sidewall. The nut feeding track (4) extends toward the turntable (21) and the material channel (41) corresponds to the groove (211). A material shortage detection mechanism (5) is provided on the side of the frame (1) away from the nut feeding track (4) of the turntable (21). The riveting mechanism (6) is provided on the other side of the material shortage detection mechanism (5). The discharge channel (22) is inclined.

6. A locking nut assembly machine according to claim 5, characterized in that: The frame (1) is movably connected above the turntable (21) and the upper part of the frame (1) is fixed with a drive cylinder (11) for driving the mounting frame (12) to rise and fall. The material-free detection mechanism (5) is a detection contact (51) fixed to one side of the mounting frame (12). The detection contact (51) is inserted into the nut and contacts the metal locking plate. When the detection contact (51) contacts the nut, a material-free signal is generated.

7. A locking nut assembly machine according to claim 6, characterized in that: The riveting mechanism (6) is a riveting head (61) fixed to the side of the mounting frame (12) near the discharge channel (22).

8. A locking nut assembly machine according to claim 6, characterized in that: The upper surface of the frame (1) and the assembly platform (2) are inclined together with the discharge channel (22).

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