A feeding mechanism and a tightening device

Abstract

This application discloses a flange nut gripping assembly, including a gripper assembly for gripping flange nuts, a first drive mechanism, a connecting rod, a guide plate, and a guide slider. The gripper assembly is connected to the guide slider. The guide plate has a guide groove, including an X-groove and a Z-groove, which communicate with each other. The connecting rod is rotatably connected to the guide plate and movably connected to the guide slider, which is slidably connected within the guide groove. This application enables the rapid gripping of flange nuts for subsequent tightening.

Description

Technical Field

[0001] This application relates to the field of vehicle assembly technology, and in particular to a feeding mechanism and tightening device. Background Technology

[0002] Vehicle components are generally secured using disc flange nuts. Currently, it is usually necessary to manually hold the flange nuts and use tools to tighten them onto the components. However, this method is inefficient and difficult to automate.

[0003] Therefore, it is necessary to design a feeding mechanism and tightening device that can quickly grab the flange nuts for subsequent tightening. Summary of the Invention

[0004] The purpose of this application is to overcome the shortcomings of the prior art and provide a feeding mechanism and tightening device that can quickly grab the flange nut for subsequent tightening.

[0005] The technical solution of this application provides a flange nut gripping assembly, including a gripper assembly for gripping flange nuts, a first drive mechanism, a connecting rod, a guide plate, and a guide slider. The gripper assembly is connected to the guide slider. The guide plate is provided with a guide groove, which includes an X-groove and a Z-groove. The X-groove and the Z-groove communicate with each other. The connecting rod is rotatably connected to the guide plate and is movably connected to the guide slider. The guide slider is slidably connected within the guide groove.

[0006] Optionally, it further includes an X-direction guide component and a Z-direction guide component. The X-direction guide component includes an X-direction guide rail and an X-direction slider, the X-direction slider being slidably connected to the X-direction guide rail. The Z-direction guide component includes a Z-direction guide rail and a Z-direction slider, the Z-direction slider being slidably connected to the Z-direction guide rail. The Z-direction guide rail is connected to the X-direction slider, and the Z-direction slider is connected to the guide slider.

[0007] Optionally, the connecting rod is provided with a sliding groove along its length, and the guide slider is provided with a guide portion, which passes through the guide groove and the sliding groove and can slide along the guide groove and the sliding groove.

[0008] Optionally, the first driving mechanism includes a first driving device and a driving rod. The first driving device is connected to the driving rod and is used to drive the driving rod to extend or retract. The first driving device is connected to the guide plate. The driving rod is hinged to the connecting rod and is used to drive the connecting rod to rotate.

[0009] Optionally, the gripper assembly includes a connecting frame, grippers, and a second drive mechanism. The two grippers are movably connected to the connecting frame, and the second drive mechanism is connected to the grippers and used to drive the grippers to move.

[0010] When clamping, the second drive mechanism drives the two grippers to move toward each other;

[0011] When released, the second drive mechanism drives the two grippers to move in a direction away from each other.

[0012] Optionally, the gripper includes a clamping part, a movable part, and a driving part. The movable part connects the clamping part and the driving part. The clamping part is provided with an arc-shaped bayonet that matches the contour of the flange nut. The movable part is rotatably connected to the connecting frame. A first elastic element is provided between the driving part and the connecting frame.

[0013] The second drive mechanism includes a second drive device and a movable pressure block, wherein the second drive device is connected to the movable pressure block;

[0014] When clamped, the movable pressure block separates from the driving part, and the first elastic element drives the two driving parts to move away from each other, while the two clamping parts move towards each other.

[0015] When released, the second driving device drives the movable pressure block to move, the movable pressure block drives the driving part to move and compress the first elastic member, and the two clamping parts move in a direction away from each other.

[0016] The present invention also discloses a feeding mechanism, including a feeding mechanism, a pushing mechanism and the above-mentioned flange nut gripping assembly. The feeding mechanism includes a hopper, a turntable and a third driving device. The third driving device is connected to the turntable and is used to drive the turntable to rotate.

[0017] The turntable is provided with a receiving cavity for accommodating a single flange nut, the receiving cavity including a feed inlet, a discharge outlet and a push outlet;

[0018] The feeding mechanism includes a feeding state and a discharging state;

[0019] When the feeding mechanism is in the feeding state, the third driving device drives the turntable to rotate to the first position, the feeding port is connected to the discharge end of the hopper, and the flange nut in the hopper can enter the receiving cavity through the feeding port;

[0020] When the feeding mechanism is in the discharge state, the third driving device drives the turntable to rotate to the second position, the gripper assembly moves to the position communicating with the discharge port, and the pushing mechanism can push the flange nut in the receiving cavity from the discharge port to be clamped by the gripper assembly through the pushing port.

[0021] Optionally, the pushing mechanism includes a fourth driving device and a push rod, wherein the fourth driving device is connected to the push rod;

[0022] During material feeding, the fourth driving device drives the push rod to extend from the material feeding port into the receiving cavity and pushes the flange nut in the receiving cavity out of the discharge port.

[0023] Optionally, the hopper is inclined from the feed end to the discharge end.

[0024] The present invention also discloses a tightening device, including a tightening mechanism and the above-mentioned feeding mechanism;

[0025] The tightening mechanism includes a tightening shaft, a rotating device for driving the tightening shaft to rotate about its axis, and a telescopic device for driving the tightening shaft to move along its axial direction.

[0026] When tightening, the gripper assembly moves to the tightening position, and the flange nut held by the gripper assembly is coaxial with the tightening shaft.

[0027] The above technical solution has the following beneficial effects:

[0028] The flange nut gripping assembly disclosed in this application can drive the connecting rod to rotate through the first drive mechanism. The connecting rod drives the guide slider to move along the X guide groove and the Z guide groove, thereby driving the gripper assembly to move in the X and Z directions to adjust its position. This allows the gripper assembly to move to the gripping station or tightening station to grip the flange nut and tighten it subsequently, thereby improving work efficiency and automation.

[0029] The feeding mechanism disclosed in this application can load the flange nuts in the hopper into the receiving cavity of the turntable, and push the flange nuts in the receiving cavity out to be held by the gripper assembly through the pushing mechanism, which can improve the efficiency and automation of the feeding process.

[0030] The tightening device disclosed in this application can automatically feed flange nuts and move them to the tightening station through the flange nut gripping assembly and the feeding mechanism. Furthermore, the tightening device can tighten the flange nuts onto vehicle parts, further improving the degree of automation and work efficiency. Attached Figure Description

[0031] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of the tightening device in one embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the gripper assembly in one embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the guide plate structure in one embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the feeding mechanism and gripper assembly in one embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the feeding mechanism in one embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the receiving cavity in one embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the tightening device during material feeding in one embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the tightening device tightening a nut in one embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the tightening mechanism in one embodiment of the present invention.

[0041] Reference table for attached figures:

[0042] Gripper assembly 10: connecting frame 101, gripper 102, clamping part 1021, movable part 1022, driving part 1023, second driving mechanism 103, second driving device 1031, movable pressure block 1032, movable frame 1033;

[0043] First drive mechanism 11: First drive device 111, drive rod 112;

[0044] Connecting rod 12: Slide groove 121;

[0045] Guide plate 13: guide groove 131, X guide groove 1311, Z guide groove 1312, extension frame 132;

[0046] Guide slider 14;

[0047] X-direction guide assembly 15: X-direction guide rail 151, X-direction slider 152;

[0048] Z-direction guide assembly 16: Z-direction guide rail 161, Z-direction slider 162;

[0049] Feeding mechanism 20: hopper 201, turntable 202, receiving cavity 2020, feed inlet 2021, discharge outlet 2022, pusher outlet 2023, third drive device 203;

[0050] Pushing mechanism 30: Fourth drive device 301, push rod 302;

[0051] Tightening mechanism 40: tightening shaft 401, rotating device 402, telescopic device 403. Detailed Implementation

[0052] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0053] It is readily understood that, based on the technical solution of this application, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of the application.

[0054] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meanings of the above in this application according to the specific circumstances.

[0056] One embodiment of the present invention discloses a flange nut gripping assembly, such as... Figures 1-3As shown, the device includes a gripper assembly 10 for gripping flange nuts, a first drive mechanism 11, a connecting rod 12, a guide plate 13, and a guide slider 14. The gripper assembly 10 is connected to the guide slider 14. The guide plate 13 is provided with a guide groove 131, which includes an X-groove 1311 and a Z-groove 1312. The X-groove 1311 and the Z-groove 1312 are connected. The connecting rod 12 is rotatably connected to the guide plate 13 and is movably connected to the guide slider 14. The guide slider 14 is slidably connected within the guide groove 131.

[0057] Wherein, the definition is as follows Figure 1 The left and right directions shown are the X-direction, and the up and down directions are the Z-direction.

[0058] Furthermore, such as Figure 3 As shown, the X guide groove 1311 and the Z guide groove 1312 are perpendicular to each other, and the ends of the X guide groove 1311 and the Z guide groove 1312 are connected. The X guide groove 1311 and the Z guide groove 1312 are connected by an arc transition at the connection position to avoid the guide slider 14 getting stuck.

[0059] In this application, when the flange nut needs to be gripped, the first drive device 111 drives the connecting rod 12 to rotate. The connecting rod 12 drives the guide slider 14 to slide to the leftmost end of the X-guide groove 1311 shown in the figure. At this time, the guide slider 14 can drive the gripper assembly 10 to the gripping position to grip the flange nut. After gripping, the first drive device 111 drives the connecting rod 12 to rotate. The connecting rod 12 drives the guide slider 14 to slide to the tightening position, so that the flange nut gripped by the gripper assembly 10 can be tightened onto the vehicle parts. In this application, the gripper assembly 10 can move in the X and Z directions to adjust its position, so that the gripper assembly 10 can move to the gripping station or the tightening station to grip and tighten the flange nut, thereby improving work efficiency and automation.

[0060] In some embodiments of the present invention, such as Figure 2 As shown, it also includes an X-direction guide assembly 15 and a Z-direction guide assembly 16. The X-direction guide assembly 15 includes an X-direction guide rail 151 and an X-direction slider 152, with the X-direction slider 152 slidably connected to the X-direction guide rail 151. The Z-direction guide assembly 16 includes a Z-direction guide rail 161 and a Z-direction slider 162, with the Z-direction slider 162 slidably connected to the Z-direction guide rail 161. The Z-direction guide rail 161 is connected to the X-direction slider 152, and the Z-direction slider 162 is connected to the guide slider 14.

[0061] Furthermore, such as Figure 2As shown, the X-axis guide rail 151 and the Z-axis guide rail 161 are perpendicular to each other. The guide slider 14 is fixedly connected to the Z-axis slider 162 via a connecting post arranged along the X-axis. The gripper assembly 10 is fixedly connected to the Z-axis slider 162. The X-axis slider 152 can slide along the X-axis guide rail 151, and the X-axis slider 152 can drive the Z-axis guide rail 161 to slide along the X-axis, thereby enabling the Z-axis slider 162 to drive the gripper assembly 10 to slide along the X-axis. The Z-axis slider 162 can slide along the Z-axis guide rail 161, thereby enabling the Z-axis slider 162 to drive the gripper assembly 10 to slide along the Z-axis. The X-axis guide assembly 15 and the Z-axis guide assembly 16 can improve the stability of the guide slider 14.

[0062] In some embodiments of the present invention, such as Figure 3 As shown, the connecting rod 12 is provided with a slide groove 121 arranged along its length direction, and the guide slider 14 is provided with a guide part, which passes through the guide groove 131 and the slide groove 121 and can slide along the guide groove 131 and the slide groove 121.

[0063] Since the guide part passes through both the guide groove 131 and the slide groove 121, when the connecting rod 12 rotates, the connecting rod 12 can drive the guide slider 14 to slide along the X guide groove 1311 and the Z guide groove 1312. At the same time, the guide part in the guide slider 14 can also slide relative to the slide groove 121, thereby avoiding the problem of jamming due to motion interference when the connecting rod 12 drives the guide slider 14 to slide.

[0064] In some embodiments of the present invention, such as Figure 3 As shown, the first driving mechanism 11 includes a first driving device 111 and a driving rod 112. The first driving device 111 is connected to the driving rod 112 and is used to drive the driving rod 112 to extend and retract. The first driving device 111 is connected to the guide plate 13. The driving rod 112 is hinged to the connecting rod 12 and is used to drive the connecting rod 12 to rotate.

[0065] Furthermore, the first driving device 111 is a driving cylinder, which is connected to the driving rod 112 and can drive the driving rod 112 to move linearly and extend. The connecting rod 12 is hinged to the guide plate 13. The hinge point of the connecting rod 12 is located between the hinged end of the connecting rod 12 and the driving rod 112 and the slide groove 121. Therefore, when the driving rod 112 moves, the driving rod 112 can drive the connecting rod 12 to rotate around its hinge point, thereby driving the guide slider 14 to slide along the guide groove 131.

[0066] Furthermore, such as Figure 3As shown, an extension frame 132 is provided on the guide plate 13. The first drive device 111 is hinged to the extension frame 132, thus avoiding motion interference of the drive rod 112 during the operation of the drive connecting rod 12, which could lead to jamming.

[0067] Optionally, the hinge point of the connecting rod 12 is located between the first end and the second end of the connecting rod 12, the first end of the connecting rod 12 is hinged to the drive rod 112, and the second end of the connecting rod 12 is hinged to the guide slider 14.

[0068] In some embodiments of the present invention, such as Figure 2 As shown, the gripper assembly 10 includes a connecting frame 101, grippers 102, and a second drive mechanism 103. The two grippers 102 are movably connected to the connecting frame 101, and the second drive mechanism 103 is connected to the grippers 102 and is used to drive the grippers 102 to move.

[0069] When clamping, the second drive mechanism 103 drives the two grippers 102 to move toward each other;

[0070] When released, the second drive mechanism 103 drives the two grippers 102 to move in a direction away from each other.

[0071] Furthermore, such as Figure 1 As shown, the connecting frame 101 is fixedly connected to the Z-axis slider 162, and two grippers 102 are movably connected to the connecting frame 101, with the two grippers 102 respectively located on both sides of the end of the connecting frame 101. The second driving device 1031 can drive the two grippers 102 to move in directions away from or towards each other, thereby clamping and fixing the flange nut or removing it through the two grippers 102.

[0072] In some embodiments of the present invention, such as Figure 2 As shown, the gripper 102 includes a clamping part 1021, a movable part 1022, and a driving part 1023. The movable part 1022 connects the clamping part 1021 and the driving part 1023. The clamping part 1021 is provided with an arc-shaped slot that matches the profile of the flange nut. The movable part 1022 is rotatably connected to the connecting frame 101. A first elastic element is provided between the driving part 1023 and the connecting frame 101.

[0073] The second drive mechanism 103 includes a second drive device 1031 and a movable pressure block 1032, wherein the second drive device 1031 is connected to the movable pressure block 1032.

[0074] When clamped, the movable pressure block 1032 separates from the drive part 1023, and the first elastic element drives the two drive parts 1023 to move away from each other, while the two clamping parts 1021 move towards each other.

[0075] When released, the second drive device 1031 drives the movable pressure block 1032 to move, the movable pressure block 1032 drives the drive part 1023 to move and compress the first elastic member, and the two clamping parts 1021 move in a direction away from each other.

[0076] Furthermore, such as Figure 2 As shown, the clamping part 1021 and the driving part 1023 are rotatable around the movable part 1022. A guide slope is provided on the side of the driving part 1023 facing the movable pressure block 1032. When the movable pressure block 1032 moves towards the movable part 1022, it slides from the lower end to the higher end of the guide slope, thereby driving the two driving parts 1023 to move closer to each other, causing the two clamping parts 1021 to move further away from each other, thus achieving material removal. When the movable pressure block 1032 moves to the lower end of the guide slope, the two driving parts 1023 move further away from each other under the elastic force of the first elastic member, causing the two clamping parts 1021 to move closer to each other and clamp the flange nut. Simultaneously, the first elastic member applies a continuous clamping force to the flange nut, thus ensuring stable clamping.

[0077] The first elastic element is a spring disposed between the drive unit 1023 and the connecting frame 101. Furthermore, since the clamping part 1021 has an arc-shaped latch that matches the outer contour surface of the flange nut, the clamping force applied by the spring can prevent excessive clamping force when clamping the flange nut. Simultaneously, the matching of the flange nut's contour surface with the arc-shaped latch ensures stable clamping of the flange nut and prevents it from becoming impossible to rotate due to excessive clamping force when tightening it. Moreover, by applying the clamping force through the spring, the first drive device 111 does not need to operate during the clamping process, thus saving energy.

[0078] Furthermore, the second drive mechanism 103 also includes a movable frame 1033, wherein the movable pressure block 1032 is connected to the movable frame 1033, and the second drive device 1031 is a release cylinder. The second drive device 1031 is connected to the movable frame 1033 and can drive the movable frame 1033 to move, so that the movable pressure block 1032 can move towards or away from the gripper 102, thereby driving the gripper 102 to move.

[0079] Optionally, the second driving device 1031 is a clamping cylinder, which is fixedly connected to the gripper 102. The clamping cylinder drives the two grippers 102 to move closer or further apart, thereby achieving clamping or unloading.

[0080] The present invention also discloses a feeding mechanism, such as Figure 4 and Figure 5As shown, it includes a feeding mechanism 20, a pushing mechanism 30 and the above-mentioned flange nut gripping assembly. The feeding mechanism 20 includes a hopper 201, a turntable 202 and a third driving device 203. The third driving device 203 is connected to the turntable 202 and is used to drive the turntable 202 to rotate.

[0081] like Figure 6 As shown, the turntable 202 is provided with a receiving cavity 2020 for accommodating a single flange nut. The receiving cavity 2020 includes a feed inlet 2021, a discharge outlet 2022, and a pusher outlet 2023.

[0082] The feeding mechanism 20 includes a feeding state and a discharging state;

[0083] When the feeding mechanism 20 is in the feeding state, the third driving device 203 drives the turntable 202 to rotate to the first position, the feed port 2021 is connected to the discharge end of the hopper 201, and the flange nut in the hopper 201 can enter the receiving cavity 2020 through the feed port 2021.

[0084] like Figure 4 As shown, when the feeding mechanism 20 is in the discharge state, the third driving device 203 drives the turntable 202 to rotate to the second position, and the gripper assembly 10 moves to the position connected with the discharge port 2022. The pushing mechanism 30 can push the flange nut in the receiving cavity 2020 from the discharge port 2022 to be clamped by the gripper assembly 10 through the pushing port 2023.

[0085] Furthermore, such as Figure 5 As shown, multiple flange nuts can be arranged side by side in the hopper 201, and one of the hoppers 201 can supply flange nuts to the receiving cavity 2020 of the turntable 202. The volume of the receiving cavity 2020 is slightly larger than the volume of a single flange nut, therefore, the receiving cavity 2020 can only accommodate one flange nut at a time.

[0086] Among them, such as Figure 4 As shown, the third drive device 203 is a rotary motor, which can drive the turntable 202 to rotate, as... Figure 7 As shown, during feeding, the third drive device 203 drives the turntable 202 to rotate to the first position, that is, the feed port 2021 of the turntable 202 rotates to connect with the discharge end of the hopper 201. At this time, the first flange nut in the hopper 201 can enter the receiving cavity 2020 through the feed port 2021. Figure 8As shown, after feeding is completed, the third drive device 203 drives the turntable 202 to rotate. At this time, the wall of the turntable 202 abuts against the discharge end of the hopper 201, so that the flange nuts in the hopper 201 cannot be dislodged from the hopper 201. Simultaneously, the turntable 202 rotates to the second position. At this time, the gripper assembly 10 is driven by the first drive mechanism 11 to a position communicating with the discharge port 2022 of the receiving cavity 2020. The pushing mechanism 30 can then enter the pushing port 2023 and push the flange nuts in the receiving cavity 2020 out of the discharge port 2022, so that the gripper assembly 10 can grasp the flange nuts. Therefore, the feeding mechanism disclosed in this application can quickly and automatically load the flange nuts onto the gripper assembly 10, and the gripper assembly 10 can be moved to the tightening position by the gripping assembly to facilitate the subsequent tightening operation of the flange nuts, thereby improving work efficiency.

[0087] In some embodiments of the present invention, such as Figure 5 As shown, the feeding mechanism 30 includes a fourth driving device 301 and a push rod 302, with the fourth driving device 301 connected to the push rod 302.

[0088] During the feeding process, the fourth drive device 301 drives the push rod 302 to extend from the feeding port 2023 into the receiving cavity 2020 and pushes the flange nut in the receiving cavity 2020 out of the discharge port 2022.

[0089] Furthermore, the discharge port 2022 and the push port 2023 are respectively located on two opposite end faces of the turntable 202 and connected to the receiving cavity 2020. The gripper assembly 10 is located on the side of the turntable 202 where the discharge port 2022 is located, and the push mechanism 30 is located on the side of the turntable 202 where the push port 2023 is located. The fourth drive device 301 is a telescopic cylinder, which can drive the push rod 302 to move along the axial direction of the turntable 202. During discharge, the fourth drive device 301 drives the push rod 302 to extend from the push port 2023 into the receiving cavity 2020 and then pushes the flange nut in the receiving cavity 2020 outward from the discharge port 2022.

[0090] In some embodiments of the present invention, the hopper 201 is inclined from the feed end to the discharge end.

[0091] Because the hopper 201 is tilted, when the turntable 202 rotates to the point where the feed inlet 2021 connects with the discharge end of the hopper 201, the flange nut inside the hopper 201 can slide out from the discharge end of the hopper 201 under the action of gravity and enter the receiving cavity 2020.

[0092] Furthermore, the feed end of the hopper 201 is connected to the vibrating plate, which vibrates the flange nuts out into the hopper 201, so that the hopper 201 can store multiple flange nuts at a time, and the first flange nut can slide out from the discharge end of the hopper 201 under the action of gravity.

[0093] Additionally, a first positioning sensor is installed within the receiving cavity 2020 of the turntable 202. This first positioning sensor is communicatively connected to the third drive device 203 and the first drive device 111. The first positioning sensor detects whether a flange nut has entered the receiving cavity 2020. When the first positioning sensor detects the flange nut, it triggers the first drive device 111 and the third drive device 203, causing the turntable 202 to rotate and the gripper assembly 10 to move to the discharge port 2022. Furthermore, a second positioning sensor and a third positioning sensor are also installed on the turntable 202. The second positioning sensor is communicatively connected to the second drive device 1031 and the fourth drive device 301. When the turntable 202 reaches its designated position, the second drive device 1031 activates and drives the gripper 102 to open. The fourth drive device 301 then activates and pushes out the flange nut via the push rod 302. After the third positioning sensor detects the nut being pushed out, the second drive device 1031 activates and causes the gripper 102 to clamp.

[0094] Among them, the first positioning sensor, the second positioning sensor, and the third positioning sensor are all infrared sensors.

[0095] The present invention also discloses a tightening device, including a tightening mechanism 40 and the above-mentioned feeding mechanism;

[0096] like Figure 9 As shown, the tightening mechanism 40 includes a tightening shaft 401, a rotating device 402 for driving the tightening shaft 401 to rotate about its axis, and a telescopic device 403 for driving the tightening shaft 401 to move along its axial direction.

[0097] When tightening, the gripper assembly 10 moves to the tightening position, and the flange nut held by the gripper assembly 10 is coaxial with the tightening shaft 401.

[0098] The tightening mechanism 40 can tighten the flange nut. After the first drive device 111 drives the gripper assembly 10 to move to the tightening position, the rotating device 402 and the telescopic device 403 drive the tightening shaft 401 to rotate and move, so as to tighten the flange nut held on the gripper assembly 10 onto the component. This can achieve automation and improve work efficiency.

[0099] The above description is merely the principle and preferred embodiment of this application. It should be noted that, for those skilled in the art, several other modifications can be made based on the principle of this application, and these modifications should also be considered within the scope of protection of this application.

Claims

1. A feeding mechanism, characterized in that, Includes a feeding mechanism (20), a pushing mechanism (30), and a flange nut gripping assembly; The flange nut gripping assembly includes a gripper assembly (10) for gripping flange nuts, a first drive mechanism (11), a connecting rod (12), a guide plate (13), and a guide slider (14). The gripper assembly (10) is connected to the guide slider (14). The guide plate (13) is provided with a guide groove (131). The guide groove (131) includes an X-axis guide groove (1311) and a Z-axis guide groove (1312). The X-axis guide groove (1311) and the Z-axis guide groove (1312) are connected. The connecting rod (12) is rotatably connected to the guide plate (13). The connecting rod (12) is movably connected to the guide slider (14). The guide slider (14) is slidably connected in the guide groove (131). The feeding mechanism (20) includes a hopper (201), a turntable (202) and a third driving device (203), wherein the third driving device (203) is connected to the turntable (202) and is used to drive the turntable (202) to rotate; The turntable (202) is provided with a receiving cavity (2020) for accommodating a single flange nut, the receiving cavity (2020) including a feed inlet (2021), a discharge outlet (2022) and a pusher outlet (2023); The feeding mechanism (20) includes a feeding state and a discharging state; When the feeding mechanism (20) is in the feeding state, the third driving device (203) drives the turntable (202) to rotate to the first position, the feed port (2021) is connected to the discharge end of the hopper (201), and the flange nut in the hopper (201) can enter the receiving cavity (2020) through the feed port (2021); When the feeding mechanism (20) is in the discharge state, the third driving device (203) drives the turntable (202) to rotate to the second position, the gripper assembly (10) moves to the position communicating with the discharge port (2022), and the pushing mechanism (30) can push the flange nut in the receiving cavity (2020) from the discharge port (2022) to be clamped by the gripper assembly (10) through the pushing port (2023).

2. The feeding mechanism according to claim 1, characterized in that, It also includes an X-direction guide assembly (15) and a Z-direction guide assembly (16). The X-direction guide assembly (15) includes an X-direction guide rail (151) and an X-direction slider (152). The X-direction slider (152) is slidably connected to the X-direction guide rail (151). The Z-direction guide assembly (16) includes a Z-direction guide rail (161) and a Z-direction slider (162). The Z-direction slider (162) is slidably connected to the Z-direction guide rail (161). The Z-direction guide rail (161) is connected to the X-direction slider (152). The Z-direction slider (162) is connected to the guide slider (14).

3. The feeding mechanism according to claim 1, characterized in that, The connecting rod (12) is provided with a sliding groove (121) arranged along its length direction, and the guide slider (14) is provided with a guide part, which passes through the guide groove (131) and the sliding groove (121) and can slide along the guide groove (131) and the sliding groove (121).

4. The feeding mechanism according to claim 1, characterized in that, The first driving mechanism (11) includes a first driving device (111) and a driving rod (112). The first driving device (111) is connected to the driving rod (112) and is used to drive the driving rod (112) to extend and retract. The first driving device (111) is connected to the guide plate (13). The driving rod (112) is hinged to the connecting rod (12) and is used to drive the connecting rod (12) to rotate.

5. The feeding mechanism according to any one of claims 1-4, characterized in that, The gripper assembly (10) includes a connecting frame (101), grippers (102), and a second drive mechanism (103). The two grippers (102) are movably connected to the connecting frame (101), and the second drive mechanism (103) is connected to the grippers (102) and is used to drive the grippers (102) to move. When clamping, the second drive mechanism (103) drives the two grippers (102) to move toward each other; When released, the second drive mechanism (103) drives the two grippers (102) to move in a direction away from each other.

6. The feeding mechanism according to claim 5, characterized in that, The gripper (102) includes a clamping part (1021), a movable part (1022), and a driving part (1023). The movable part (1022) connects the clamping part (1021) and the driving part (1023). The clamping part (1021) is provided with an arc-shaped bayonet that matches the profile of the flange nut. The movable part (1022) is rotatably connected to the connecting frame (101). A first elastic element is provided between the driving part (1023) and the connecting frame (101). The second drive mechanism (103) includes a second drive device (1031) and a movable pressure block (1032), wherein the second drive device (1031) is connected to the movable pressure block (1032); When clamped, the movable pressure block (1032) separates from the driving part (1023), the first elastic element drives the two driving parts (1023) to move away from each other, and the two clamping parts (1021) move towards each other. When released, the second driving device (1031) drives the movable pressure block (1032) to move, the movable pressure block (1032) drives the driving part (1023) to move and compress the first elastic member, and the two clamping parts (1021) move in a direction away from each other.

7. The feeding mechanism according to claim 1, characterized in that, The pushing mechanism (30) includes a fourth driving device (301) and a push rod (302), wherein the fourth driving device (301) is connected to the push rod (302); During the feeding process, the fourth driving device (301) drives the push rod (302) to extend from the feeding port (2023) into the receiving cavity (2020) and pushes the flange nut in the receiving cavity (2020) out from the discharge port (2022).

8. The feeding mechanism according to claim 1, characterized in that, The hopper (201) is inclined from the feed end to the discharge end.

9. A tightening device, characterized in that, Includes a tightening mechanism (40) and a feeding mechanism as described in any one of claims 1-8; The tightening mechanism (40) includes a tightening shaft (401), a rotating device (402) for driving the tightening shaft (401) to rotate about its axis, and a telescopic device (403) for driving the tightening shaft (401) to move along its axial direction. When tightening, the gripper assembly (10) moves to the tightening position, and the flange nut held by the gripper assembly (10) is coaxial with the tightening shaft (401).

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