A multi-station bolt locking device

Abstract

The utility model relates to mechanical automation technical field relates to a multi -position bolt locking device, including frame, two groups of symmetrical bolt feeding mechanism and two groups of symmetrical nut feeding mechanism, frame contains frame one and frame two, frame one is equipped with transport mechanism and positioning cylinder, bolt feeding mechanism contains bolt feeding module outside frame one and bolt grabbing module on frame two, nut feeding mechanism contains nut feeding module outside frame one and nut grabbing module on frame two. The utility model discloses device realizes bolt and nut feeding, shift, assembly, lock whole process automation, reduces artificial dependence, and multiple groups of sliding groove and collaborative drive synchronous processing multiple fasteners, shorten the workpiece processing length of time, and module modularization can increase and decrease group number, adapt to different specifications fastener, improve the reusability, reduce the cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical automation technology, and specifically to a multi-station bolt locking device. Background Technology

[0002] In industries such as machinery manufacturing, automotive parts assembly, and appliance casing fixing, the tightening of bolts and nuts is a core process in workpiece assembly, directly affecting product structural stability and production efficiency. However, current bolt and nut assembly technology in these industries still has many shortcomings, making it difficult to meet the demands of modern mass production and flexible manufacturing. Specific problems include: In traditional assembly processes, the entire process of picking up and placing bolts, as well as feeding and tightening nuts, relies on manual operation. Workers must pick up bolts one by one from the material box, manually align them with the locking holes on the workpiece, and then pick up the nuts, align them, and tighten them with tools. This process requires frequent bending over, lifting arms, and precise alignment, resulting in extremely high labor intensity and a high risk of occupational diseases such as lumbar muscle strain and tenosynovitis. At the same time, to match the continuous operation of the production line, multiple shifts are required, leading to high labor costs. Furthermore, manual operation is affected by fatigue and visual deviations, resulting in frequent problems such as misaligned bolt placement and uneven nut tightening torque, leading to a high rework rate. Utility Model Content

[0003] This utility model provides a multi-station bolt locking device to solve the problems of the prior art.

[0004] The objective of this utility model can be achieved through the following technical solution: a multi-station bolt locking device, comprising: The frame includes a frame one and a frame two mounted on the frame one. A transport mechanism is provided on the frame one. The transport mechanism includes a transport frame mounted on the frame one and a transport belt rotatably mounted on the transport frame. A positioning cylinder is provided on the side end of the transport frame. The bolt feeding mechanism is provided in two sets, which are symmetrically arranged on both sides of the frame. Each set of bolt feeding mechanisms includes a bolt feeding module located on the outside of the first frame and a bolt gripping module located on the second frame. The nut feeding mechanism is provided in two sets, which are symmetrically arranged on both sides of the frame. Each set of the nut feeding mechanism includes a nut feeding module located on the outer side of the first frame and a nut gripping module located on the second frame.

[0005] Further improvements include a bolt feeding module comprising a feeding bin, a feeding trough, and an unloading module. The feeding bin is connected to the feeding end of the feeding trough. The unloading module comprises a support plate, an unloading chute on the support plate, and an arrangement assembly. At least three sets of unloading chutes are provided, with the feeding end of the unloading chute corresponding to the discharge end of the feeding trough. The arrangement assembly comprises a support plate, a guide rail on the support plate corresponding to each unloading chute, a feeding seat slidably mounted on the guide rail, and a driving component at the lower end of the support plate. The feeding seat is a structure with both ends connected. A transition plate is provided between adjacent unloading chutes. A limiting plate is provided on the side end of each set of unloading chutes. The working end of the driving component is connected to the feeding seat.

[0006] In a further improvement, a vibration motor is provided on the support plate, and a support frame is provided on the working end of the vibration motor. The support frame is fixed to the lower end of the unloading chute, and the unloading chute is inclined downwards to the side away from the feeding bin.

[0007] In a further improvement, the bolt gripping module includes a translation module, a lifting module, and a gripping module. The translation module includes a translation cylinder, a linear slide rail, and a mounting plate. The translation cylinder and the linear slide rail are both mounted on the frame. The piston rod end of the translation cylinder is fixed to the mounting plate. Linear bearings are provided on both sides of the mounting plate. The mounting plate is slidably mounted on the linear slide rail via the linear bearings.

[0008] In a further improvement, the lifting module includes a lifting cylinder fixedly mounted on a mounting plate one. The piston rod of the lifting cylinder passes downward through the mounting plate one and is fixedly mounted on a mounting plate two. Guide rods are provided at the lower ends of both sides of the mounting plate one, and guide seats are provided at the lower ends of both sides of the mounting plate two. The lower ends of the guide rods are slidably mounted in the guide seats.

[0009] A further improvement includes a mounting base at the lower end of the mounting plate two, a mounting rod slidably disposed within the mounting base one, a gripping cylinder at the lower end of the mounting rod, and a gripping seat at the movable end of the gripping cylinder. The mounting plate two has a through hole, the upper end of the mounting rod is slidably disposed within the through hole, and a spring is sleeved on the mounting rod. The upper and lower ends of the spring abut against the lower end of the mounting base and the upper surface of the gripping cylinder, respectively.

[0010] In a further improvement, the nut feeding module includes a second feeding bin, a second feeding trough, and a feeding mechanism. The second feeding bin is connected to the inlet end of the second feeding trough. A third vibration motor is installed at the lower end of the second feeding trough. The feeding mechanism includes a frame, a feeding slide chute and an arrangement module mounted on the frame. Multiple sets of feeding slide chute are provided, and the inlet end of the feeding slide chute corresponds to the outlet end of the second feeding trough. The arrangement module includes a first mounting plate, a guide seat mounted on the first mounting plate and corresponding to the feeding slide chute, a slide rail slidably mounted in the guide seat, a second feeding seat mounted at one end of the slide rail, and a second driving component mounted at the lower end of the mounting plate. The working end of the second driving component is connected to the end of the slide rail away from the second feeding seat.

[0011] In a further improvement, the second driving component includes a driving cylinder disposed at the lower end of the mounting plate, and an L-shaped connecting plate fixedly disposed at the end of the piston rod of the driving cylinder. The other end of the L-shaped connecting plate is connected to the side end of the slide rail. A second vibration motor is disposed between the first mounting plate and the feeding chute.

[0012] In a further improvement, the nut feeding module also includes a lifting mechanism. The lifting mechanism includes a lifting cylinder one located at one end of the feeding chute away from the feeding bin two, and a lifting frame one located at the end of the piston rod of the lifting cylinder one. The lifting frame one is provided with lifting grooves, and multiple sets of lifting grooves are provided and are corresponding to the feeding chute.

[0013] In a further improvement, the nut locking module includes a locking frame, a drive mechanism mounted on the locking frame, and an electric screwdriver mounted on the drive mechanism. The drive mechanism includes a locking cylinder mounted on the locking frame, a slide rail mounted on the side of the locking frame, and a second mounting base slidably mounted on the slide rail. The piston rod of the locking cylinder passes downward through the upper wall of the locking frame and is connected to the upper end of the second mounting base. The electric screwdriver is mounted on the second mounting base.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. All devices of this utility model (bolt feeding, bolt gripping, nut feeding, and nut locking) achieve full automation of the feeding, transfer, assembly, and locking process without manual intervention, reducing reliance on manual labor, lowering labor costs and operational intensity, and avoiding the risk of occupational diseases caused by manual operation. 2. This utility model is equipped with multiple sets of slides and corresponding modules. Combined with the collaborative drive design, it can simultaneously complete the feeding, transfer or assembly of multiple bolts or nuts, greatly shortening the processing time of a single workpiece, adapting to high-cycle production lines, and avoiding production capacity lag. 3. The module of this utility model adopts a modular design, and the number of slides or modules can be increased or decreased according to the needs. The core components can be adapted to bolts or nuts of different specifications without modifying the main body, thereby improving the reusability of the equipment and reducing the adaptation cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the frame structure of this utility model; Figure 3 This is a partial structural schematic diagram of the bolt feeding mechanism of this utility model; Figure 4 This is a partial structural schematic diagram of the bolt feeding mechanism of this utility model; Figure 5 This is a schematic diagram of the bolt gripping module of this utility model; Figure 6 This utility model Figure 5 A magnified view of part A in the middle; Figure 7 This is a schematic diagram of the nut feeding mechanism of this utility model; Figure 8 This is a partial structural diagram of the nut feeding module of this utility model; Figure 9 This is a schematic diagram of the drive component two in the nut feeding module of this utility model; Figure 10 This is a partial structural diagram of the nut feeding mechanism of this utility model; Figure 11 This is a schematic diagram of the nut locking module of this utility model; Figure 12 This is a schematic diagram of the arrangement component of this utility model; Figure 13 This is a schematic diagram of the workpiece's structure.

[0016] In the diagram, 10 is the frame; 101 is the first frame; 102 is the second frame; 103 is the transport mechanism; 1031 is the transport frame; 1032 is the conveyor belt; 1033 is the positioning cylinder; 20 is the bolt feeding mechanism; 201 is the bolt feeding module; 2011 is the feeding bin one; 2012 is the feeding trough one; 2013 is the unloading module; 20131 is the support plate one; 20132 is the unloading chute; 20133 is the arrangement assembly; 201331 is the support plate two; 201332 is the guide rail; 201333 is the feeding seat; 20133 is the bolt feeding base. 4. Drive Component 1; 2014. Transition Plate; 2015. Limiting Plate; 2016. Vibration Motor 1; 20161. Support Frame; 202. Bolt Gripping Module; 2021. Translation Module; 20211. Translation Cylinder; 20212. Linear Slide Rail; 20213. Mounting Plate 1; 202131. Linear Bearing; 202132. Guide Rod; 2022. Lifting Module; 20221. Lifting Cylinder; 20222. Mounting Plate 2; 202221. Through Hole; 202222. Guide Seat; 2023. Gripping Module; 20231. Mounting base one; 20232. Mounting rod; 202321. Spring; 20233. Clamping cylinder; 20234. Clamping seat; 30. Nut feeding mechanism; 301. Nut feeding module; 3011. Feeding bin two; 3012. Feeding trough two; 30121. Vibration motor three; 3013. Feeding mechanism; 30131. Frame; 30132. Feeding chute; 30133. Arrangement module; 301331. Mounting plate one; 301332. Guide seat; 301333. Slide rail; 301334. Feeding base two; 301335, driving component two; 3013351, driving cylinder; 3013352, L-shaped connecting plate; 3014, vibration motor two; 3015, lifting mechanism; 30151, lifting cylinder one; 30152, lifting frame one; 301521, lifting groove; 302, nut locking module; 3021, locking frame; 3022, driving mechanism; 30221, locking cylinder; 30222, slide rail; 30223, mounting base two; 3023, electric screwdriver; 40, workpiece; 401, locking hole. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The following describes the embodiments and appendices. Figures 1-13 The technical solution of this utility model will be further described below.

[0020] Example 1 A multi-station bolt locking device, comprising: The frame 10 includes a first frame 101 and a second frame 102 mounted on the first frame 101. A transport mechanism 103 is mounted on the first frame 101. The transport mechanism 103 includes a transport frame 1031 mounted on the first frame 101 and a transport belt 1032 rotatably mounted on the transport frame 1031. A positioning cylinder 1033 is mounted on the side end of the transport frame 1031. Bolt feeding mechanism 20, the bolt feeding mechanism 20 is provided in two sets, the two sets of bolt feeding mechanism 20 are symmetrically arranged on both sides of the frame 10, and both sets of bolt feeding mechanism 20 include a bolt feeding module 201 arranged on the outside of the first frame 101 and a bolt gripping module 202 arranged on the second frame 102. The nut feeding mechanism 30 is provided in two sets, which are symmetrically arranged on both sides of the frame 10. Each set of the nut feeding mechanism 30 includes a nut feeding module 301 arranged on the outside of the first frame 101 and a nut gripping module 302 arranged on the second frame 102.

[0021] As a further preferred embodiment, the bolt feeding module 201 includes a feeding bin 2011, a feeding trough 2012, and an unloading module 2013. The feeding bin 2011 is connected to the feeding end of the feeding trough 2012. The unloading module 2013 includes a support plate 20131, an unloading chute 20132 disposed on the support plate 20131, and an arrangement assembly 20133. At least three sets of unloading chute 20132 are provided, and the feeding end of the unloading chute 20132 corresponds to the discharging end of the feeding trough 2012. The arrangement assembly 20133 includes a second support plate 201. 331. A guide rail 201332 is provided on the support plate 201331 and corresponds one-to-one with the unloading chute 20132. A feed seat 201333 is slidably provided on the guide rail 201332. A drive component 201334 is provided at the lower end of the support plate 201331. The feed seat 201333 has a structure that is open at both ends. A transition plate 2014 is provided between adjacent unloading chute 20132. A limiting plate 2015 is provided on the side end of each set of unloading chute 20132. The working end of the drive component 201334 is connected to the feed seat 201333.

[0022] As a further preferred embodiment, a vibration motor 2016 is provided on the support plate 20131, and a support frame 20161 is provided on the working end of the vibration motor 2016. The support frame 20161 is fixed to the lower end of the unloading chute 20132, and the unloading chute 20132 is inclined downward toward the side away from the feeding bin 2011.

[0023] As a further preferred embodiment, the bolt gripping module 202 includes a translation module 2021, a lifting module 2022, and a gripping module 2023. The translation module 2021 includes a translation cylinder 20211, a linear slide rail 20212, and a mounting plate 20213. The translation cylinder 20211 and the linear slide rail 20212 are both mounted on the frame 102. The piston rod end of the translation cylinder 20211 is fixed to the mounting plate 20213. Linear bearings 202131 are provided on both sides of the mounting plate 20213. The mounting plate 20213 is slidably mounted on the linear slide rail 20212 through the linear bearings 202131.

[0024] As a further preferred embodiment, the lifting module 2022 includes a lifting cylinder 20221 fixedly mounted on a mounting plate 1 20213. The piston rod of the lifting cylinder 20221 passes downward through the mounting plate 1 20213 and is fixedly mounted on a mounting plate 20222. Guide rods 202132 are provided at the lower ends of both sides of the mounting plate 1 20213, and guide seats 202221 are provided at the lower ends of both sides of the mounting plate 20222. The lower ends of the guide rods 202132 are slidably mounted in the guide seats 202221.

[0025] In a further preferred embodiment, the gripping module 2023 includes a mounting base 20231 disposed at the lower end of the mounting plate 20222, a mounting rod 20232 slidably disposed within the mounting base 20231, a gripping cylinder 20233 disposed at the lower end of the mounting rod 20232, and a gripping seat 20234 disposed at the movable end of the gripping cylinder 20233. The mounting plate 20222 has a through hole 202222, the upper end of the mounting rod 20232 is slidably disposed within the through hole 202222, and a spring 202321 is sleeved on the mounting rod 20232. The upper and lower ends of the spring 202321 abut against the lower end of the mounting base 20231 and the upper surface of the gripping cylinder 20233, respectively.

[0026] As a further preferred embodiment, the nut feeding module 301 includes a second feeding bin 3011, a second feeding trough 3012, and a feeding mechanism 3013. The second feeding bin 3011 is connected to the inlet end of the second feeding trough 3012. A vibration motor 30121 is provided at the lower end of the second feeding trough 3012. The feeding mechanism 3013 includes a frame 30131, a feeding slide 30132 disposed on the frame 30131, and an arrangement module 30133. Multiple sets of feeding slides 30132 are provided, and the inlet end of the feeding slide 30132 is connected to the second feeding trough 3012. Corresponding to the discharge end of 12, the arrangement module 30133 includes a mounting plate 301331, a guide seat 301332 disposed on the mounting plate 301331 and corresponding one-to-one with the feeding chute 30132, a slide rail 301333 slidably disposed in the guide seat 301332, a feeding seat 301334 disposed at one end of the slide rail 301333, and a driving member 301335 disposed at the lower end of the mounting plate 301331. The working end of the driving member 301335 is connected to the end of the slide rail 301333 away from the feeding seat 301334.

[0027] As a further preferred embodiment, the second driving component 301335 includes a driving cylinder 3013351 disposed at the lower end of the mounting plate 301331, and an L-shaped connecting plate 3013352 fixedly disposed at the end of the piston rod of the driving cylinder 3013351. The other end of the L-shaped connecting plate 3013352 is connected to the side end of the slide rail 301333. A second vibration motor 3014 is disposed between the mounting plate 301331 and the feeding chute 30132.

[0028] As a further preferred embodiment, the nut feeding module 301 further includes a lifting mechanism 3015. The lifting mechanism 3015 includes a lifting cylinder 30151 disposed at one end of the feeding chute 30132 away from the feeding bin 3011, and a lifting frame 30152 disposed at the end of the piston rod of the lifting cylinder 30151. The lifting frame 30152 is provided with a lifting groove 301521, and multiple sets of lifting grooves 301521 are provided and are corresponding to the feeding chute 30132.

[0029] As a further preferred embodiment, the nut locking module 302 includes a locking frame 3021, a drive mechanism 3022 disposed on the locking frame 3021, and an electric screwdriver 3023 disposed on the drive mechanism 3022. The drive mechanism 3022 includes a locking cylinder 30221 disposed on the locking frame 3021, a slide rail 30222 disposed on the side of the locking frame 3021, and a second mounting seat 30223 slidably disposed on the slide rail 30222. The piston rod of the locking cylinder 30221 passes downward through the upper wall of the locking frame 3021 and is connected to the upper end of the second mounting seat 30223. The electric screwdriver 3023 is disposed on the second mounting seat 30223.

[0030] like Figures 1-13 As shown, the workflow of this utility model is as follows: First, the workpiece 40 from the previous process is transported to the first station, the bolt placement station, via the conveyor belt 1032 of the transport mechanism 103. When the workpiece 40 reaches the preset position, the piston rod of the positioning cylinder 1033 corresponding to the bolt placement station on the side of the transport frame 1031 extends and presses against the workpiece 40 from both sides to complete the workpiece positioning, prevent the workpiece from shifting when the bolt is placed later, and ensure that the bolt is aligned with the workpiece locking hole. Secondly, the two sets of symmetrical bolt feeding modules 201 start synchronously. The feeding bin 2011 oriented the bulk bolts and lifts them into the feeding trough 2012 through the built-in track. The feeding trough 2012 is set at an inclination. The bolts slide down to the unloading module 2013 under the action of gravity. At the same time, the vibration motor 2016 on the support plate 20131 transmits the vibration energy to the unloading chute 20132 through the support frame 20161 to avoid the bolts getting stuck due to surface friction and posture deviation. The bolt finally slides into the feed seat 201333 that runs through the front and rear. When each feed seat 201333 is loaded with one bolt, the drive unit 201334 starts: the upper feed seat slides along the guide rail 201332 to the left unloading chute 20132, and the lower feed seat slides to the right unloading chute. During the sliding process, the transition plate 2014 supports the bolt to prevent it from falling off prematurely, and the limit plate 2015 stops the feed seat 2. The bolt enters the unloading chute 20132 under the action of gravity, completing the preparation for batch feeding of bolts. Next, the two sets of bolt gripping modules 202 work together. The translation cylinder 20211 drives the mounting plate 1 20213 to slide along the linear slide rail 20212, moving the lifting module 2022 and the gripping module 2023 to directly above the unloading chute 20132. The piston rod of the lifting cylinder 20221 extends, pushing the mounting plate 2 20222 to descend vertically, and the clamping seat 20234 approaches the bolt head. The clamping cylinder 20233 drives the clamping seat 20234 to tighten, firmly clamping the bolt. If the clamping seat accidentally collides with the bolt... Next, the mounting rod 20232 slides upward along the through hole 202222, and the spring 202321 is compressed to absorb the impact force, preventing the bolt from deforming or the clamping seat from being damaged. Then, the lifting cylinder 20221 retracts to drive the bolt to rise, and the translation module 2021 moves it to directly above the locking hole of the workpiece 40. The lifting cylinder extends again to insert the bolt into the locking hole, and the clamping seat opens to release the bolt, completing the automatic placement of the bolt. After the bolt is placed, the piston rod of the positioning cylinder 1033 at the bolt placement station retracts to release the limit on the workpiece 40. Next, the conveyor belt 1032 starts, smoothly transporting the workpiece 40 with the bolts placed from the first station to the next process, the nut locking station. When the workpiece 40 reaches the preset position of the nut locking station, the piston rod of the positioning cylinder 1033 on the side of the conveyor frame 1031 corresponding to the station extends, and the workpiece 40 is clamped and positioned on both sides again to ensure that the nut and bolt are connected in the future. Secondly, the two sets of nut feeding modules 301 operate synchronously. The second feeding bin 3011 oriented and arranges the bulk nuts, conveying them into the second feeding trough 3012. The vibration motor 30121 at the lower end of the second feeding trough 3012 vibrates to prevent the nuts from sticking or jamming. The nuts slide along the trough to the feeding mechanism 3013. The drive cylinder 3013351 of the arranging module 30133 drives the slide rail 301333 along the guide seat 3 via the L-shaped connecting plate 3013352. 01332 slides, the second feeding seat 301334 carries the nut to the feeding chute 30132, the vibration motor 3014 between the mounting plate 301331 and the feeding chute assists the nut to slide down, and finally the nut enters the lifting groove 301521 of the lifting frame 30152. The lifting cylinder 30151 drives the lifting frame 1 to rise, lifting the nut to the height aligned with the lower end of the bolt in the locking hole of the workpiece 40, completing the initial docking of the nut and the bolt; Next, the nut locking module 302 is activated, the piston rod of the locking cylinder 30221 extends, pushing the mounting base 30223 down along the slide rail 30222, causing the electric screwdriver 3023 to engage with the top of the bolt; the electric screwdriver is powered on and starts, causing the bolt to rotate, and the nut cannot rotate due to the workpiece 40 being limited, so it moves upward along the bolt axis until it is tightly fitted with the end face of the workpiece, completing the locking; after locking, the electric screwdriver stops rotating, the locking cylinder drives it to rise and reset, the lifting cylinder retracts and drives the lifting frame to reset, the bolt and nut feeding modules replenish materials synchronously, the positioning cylinder 1033 of the nut locking station retracts, the conveyor belt 1032 transports the locked workpiece 40 to the next process, the entire device resets, and the next cycle of bolt placement, workpiece transfer, and nut locking begins.

[0031] This utility model has the following beneficial effects: 1. All devices of this utility model (bolt feeding, bolt gripping, nut feeding, and nut locking) achieve full automation of the feeding, transfer, assembly, and locking process without manual intervention, reducing reliance on manual labor, lowering labor costs and operational intensity, and avoiding the risk of occupational diseases caused by manual operation. 2. This utility model is equipped with multiple sets of slides and corresponding modules. Combined with the collaborative drive design, it can simultaneously complete the feeding, transfer or assembly of multiple bolts or nuts, greatly shortening the processing time of a single workpiece, adapting to high-cycle production lines, and avoiding production capacity lag. 3. The module of this utility model adopts a modular design, and the number of slides or modules can be increased or decreased according to the needs. The core components can be adapted to bolts or nuts of different specifications without modifying the main body, thereby improving the reusability of the equipment and reducing the adaptation cost.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A multi-station bolt locking device, characterized in that, include: The frame includes a frame one and a frame two mounted on the frame one. A transport mechanism is provided on the frame one. The transport mechanism includes a transport frame mounted on the frame one and a transport belt rotatably mounted on the transport frame. A positioning cylinder is provided on the side end of the transport frame. The bolt feeding mechanism is provided in two sets, which are symmetrically arranged on both sides of the frame. Each set of bolt feeding mechanisms includes a bolt feeding module located on the outside of the first frame and a bolt gripping module located on the second frame. The nut feeding mechanism is provided in two sets, which are symmetrically arranged on both sides of the frame. Each set of the nut feeding mechanism includes a nut feeding module located on the outer side of the first frame and a nut gripping module located on the second frame.

2. The multi-station bolt locking device according to claim 1, characterized in that, The bolt feeding module includes a feeding bin, a feeding trough, and an unloading module. The feeding bin is connected to the feeding end of the feeding trough. The unloading module includes a support plate, an unloading chute on the support plate, and an arrangement assembly. There are at least three sets of unloading chutes, with the feeding end of the unloading chute corresponding to the discharge end of the feeding trough. The arrangement assembly includes a support plate, a guide rail on the support plate corresponding to each unloading chute, a feeding seat slidably mounted on the guide rail, and a driving component at the lower end of the support plate. The feeding seat is a structure with both ends connected. A transition plate is provided between adjacent unloading chutes. A limiting plate is provided on the side end of each set of unloading chutes. The working end of the driving component is connected to the feeding seat.

3. The multi-station bolt locking device according to claim 2, characterized in that, A vibration motor is installed on the support plate, and a support frame is installed on the working end of the vibration motor. The support frame is fixed to the lower end of the unloading chute, and the unloading chute is inclined downwards to the side away from the feeding bin.

4. The multi-station bolt locking device according to claim 1, characterized in that, The bolt gripping module includes a translation module, a lifting module, and a gripping module. The translation module includes a translation cylinder, a linear slide rail, and a mounting plate. The translation cylinder and the linear slide rail are both mounted on the frame. The piston rod end of the translation cylinder is fixed to the mounting plate. Linear bearings are provided on both sides of the mounting plate. The mounting plate is slidably mounted on the linear slide rail through the linear bearings.

5. A multi-station bolt locking device according to claim 4, characterized in that, The lifting module includes a lifting cylinder fixedly mounted on a mounting plate one. The piston rod of the lifting cylinder passes downward through the mounting plate one and is fixedly mounted on a mounting plate two. Guide rods are provided at the lower ends of both sides of the mounting plate one, and guide seats are provided at the lower ends of both sides of the mounting plate two. The lower ends of the guide rods are slidably mounted in the guide seats.

6. A multi-station bolt locking device according to claim 5, characterized in that, The gripping module includes a mounting base 1 located at the lower end of the mounting plate 2, a mounting rod slidably disposed within the mounting base 1, a gripping cylinder located at the lower end of the mounting rod, and a gripping seat located at the movable end of the gripping cylinder. The mounting plate 2 has a through hole, the upper end of the mounting rod is slidably disposed within the through hole, and a spring is sleeved on the mounting rod. The upper and lower ends of the spring abut against the lower end of the mounting base and the upper surface of the gripping cylinder, respectively.

7. A multi-station bolt locking device according to claim 1, characterized in that, The nut feeding module includes a second feeding bin, a second feeding trough, and a feeding mechanism. The second feeding bin is connected to the inlet end of the second feeding trough. A third vibration motor is installed at the lower end of the second feeding trough. The feeding mechanism includes a frame, a feeding slide on the frame, and an arrangement module. Multiple sets of feeding slides are provided, and the inlet end of the feeding slide corresponds to the outlet end of the second feeding trough. The arrangement module includes a first mounting plate, a guide seat on the first mounting plate that corresponds to the feeding slide, a slide rail slidably disposed in the guide seat, a second feeding seat disposed at one end of the slide rail, and a second driving component disposed at the lower end of the mounting plate. The working end of the second driving component is connected to the end of the slide rail away from the second feeding seat.

8. A multi-station bolt locking device according to claim 7, characterized in that, The second driving component includes a driving cylinder disposed at the lower end of the mounting plate, and an L-shaped connecting plate fixedly disposed at the end of the piston rod of the driving cylinder. The other end of the L-shaped connecting plate is connected to the side end of the slide rail. A second vibration motor is disposed between the first mounting plate and the feeding slide.

9. A multi-station bolt locking device according to claim 7, characterized in that, The nut feeding module also includes a lifting mechanism, which includes a lifting cylinder one located at one end of the feeding chute away from the feeding bin two, and a lifting frame one located at the end of the piston rod of the lifting cylinder one. The lifting frame one is provided with lifting grooves, and multiple sets of lifting grooves are provided and are corresponding to the feeding chute.

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