A multi-station tapping machine and method for fastener production

Abstract

The application relates to the technical field of tapping machines, and provides a tapping machine and a method for multi-station fastener production and manufacturing. The tapping machine comprises a rack, a work station frame, a clamping block, a supporting frame, a tapping mechanism and a moving mechanism. The work station frame is arranged at the top end of the rack through a rotating mechanism, a plurality of machining openings are formed in the work station frame, the clamping block is slidably connected to one side of the work station frame, a first electric cylinder is installed on the clamping block, the output end of the first electric cylinder penetrates through the clamping block and is fixedly connected with the work station frame, the supporting frame is rotatably arranged at the top end of the rack through a swinging mechanism, the tapping mechanism is arranged on the supporting frame, and the moving mechanism is arranged at the top end of the rack. Through the technical scheme, the tapping efficiency of the nut is reduced, and when the operator discharges the nut, the operator needs to stretch the hand to the work station to take the bolt. The discharging mode of the nut is dangerous.

Description

TECHNICAL FIELD

[0001] The embodiment of the application relates to the technical field of tapping machines, in particular to a multi-station tapping machine for fastener production and manufacturing and a method. BACKGROUND

[0002] Fasteners are mechanical parts for fastening connection and are widely used. Nuts are also a kind of fasteners, which are usually screwed together with bolts or screws to play a fastening role and are widely used in the field of assembly and manufacturing. Tapping is an essential processing procedure in the process of nut production and manufacturing, and tapping machines are usually used in tapping nuts.

[0003] When the existing tapping machine taps nuts, the operator needs to put the nut between the two clamping blocks, then clamps and fixes the nut by the two clamping blocks, then rotates the tap in the nut to tap the nut, and after tapping is completed, the operator needs to loosen the clamping block to put the tapped nut and continue tapping the new nut. However, this method is generally single-station tapping, which reduces the tapping efficiency of nuts, and the operator needs to stretch the hand to the station to take the bolt when feeding the nut, which is dangerous. SUMMARY

[0004] To overcome the above defects, the embodiment of the application provides a multi-station tapping machine for fastener production and manufacturing and a method, which are used to solve the technical problem that the single-station tapping in the prior art reduces the tapping efficiency of nuts, and the operator needs to stretch the hand to the station to take the bolt when feeding the nut, which is dangerous.

[0005] According to one aspect, at least one embodiment of the application provides a multi-station tapping machine for fastener production and manufacturing, which comprises a rack, and further comprises a station frame, a clamping block, a support frame, a tapping mechanism and a moving mechanism. The station frame is arranged at the top end of the rack through a rotating mechanism. A plurality of processing openings are formed in the station frame. The rotating mechanism is used to support the station frame to overturn. The clamping block is slidably connected to one side of the station frame. A first electric cylinder is installed on the clamping block. The output end of the first electric cylinder penetrates through the clamping block and is fixedly connected with the station frame. The support frame is rotatably arranged at the top end of the rack through a swinging mechanism. The swinging mechanism is used to drive the support frame and the station frame to swing in opposite directions. The tapping mechanism is arranged on the support frame and is used to tap the nut in the station frame. The moving mechanism is arranged at the top end of the rack and is used to drive the rotating mechanism and the swinging mechanism to move.

[0006] In order to drive the work station frame to overturn, the rotating mechanism comprises rotating shafts, rotating rods, sliding blocks and rotating gears, the rotating shafts are provided with two, the rotating shafts are rotationally connected to the top end of the frame, the rotating rods are fixedly connected to the rotating shafts, the two sides of the work station frame are fixedly connected with the rotating rods, the sliding blocks are provided with two, the sliding blocks are fixedly connected to the two sides of the work station frame, the sliding blocks are provided with sliding holes, the rotating rods are slidingly connected to the sliding holes, and the rotating gears are fixedly connected to the ends of the rotating shafts.

[0007] In order to drive the support frame to swing, the swinging mechanism comprises swinging shafts and transmission gears, the swinging shafts are provided with two, the swinging shafts are rotationally connected to the top end of the frame, the bottom end of the support frame is fixedly connected with the swinging shafts, and the transmission gears are fixedly connected to the ends of the swinging shafts.

[0008] In order to drive the work station frame and the support frame to overturn, the moving mechanism comprises moving blocks, toothed rods, a driving frame and a first hydraulic cylinder, the moving blocks are provided with two, the frame is provided with two sliding grooves, the moving blocks are slidingly connected to the sliding grooves, the toothed rods are fixedly connected to the top end of the moving blocks, the toothed rods are engaged with the rotating gears and the transmission gears, the driving frame is fixedly connected to the bottom end of the moving blocks, the first hydraulic cylinder is installed at the bottom end of the frame, and the output end of the first hydraulic cylinder is fixedly connected with the driving frame.

[0009] In order to tap the nut, the tapping mechanism comprises lifting plates, taps, first motors and support assemblies, the lifting plates are slidingly arranged at the bottom end of the support frame through lifting assemblies, the taps are provided with multiple, the taps are rotationally connected to the bottom end of the lifting plates, the taps are one-to-one corresponding to the machining ports, the first motors are provided with multiple, the first motors are installed at the top end of the lifting plates, the output ends of the first motors are fixedly connected with the top end of the taps, and the support assemblies are provided with two and arranged at the top end of the frame.

[0010] In order to drive the lifting plate to move up and down, the lifting assembly comprises sliding rods, top plates and second electric cylinders, the sliding rods are provided with two, the sliding rods are fixedly connected to the top end of the lifting plate, the support frame is provided with two sliding holes, the sliding rods are slidingly connected to the sliding holes, the top plates are fixedly connected to the top end of the sliding rods, the second electric cylinders are installed at the top end of the top plates, the output ends of the second electric cylinders are fixedly connected with the lifting plate.

[0011] To support the support frame during tapping, the support assembly includes a force-bearing plate, a base rod, and a support block. The force-bearing plate is fixedly connected to one side of the support frame, the base rod is fixedly connected to the top of the frame, and the support block is fixedly connected to the top of the base rod. The top of the support block is in contact with the force-bearing plate.

[0012] The frame is provided with a feeding port for feeding nuts.

[0013] To increase the stability of the workstation frame and support frame when swinging, multiple rotating seats are fixedly connected to the top of the frame, and two rotating shafts and two swing shafts are rotatably connected in the multiple rotating seats.

[0014] A method of using a multi-station fastener manufacturing tapping machine, comprising the following steps:

[0015] Step 1: Tapping. The first motor installed on the lifting plate drives the tap to rotate, and the second electric cylinder retracts it. During the retraction of the first electric cylinder, the sliding rod and the lifting plate are lowered, thereby allowing the rotating tap to enter the hole on the nut for tapping.

[0016] Step 2: Unloading. The first hydraulic cylinder installed at the bottom of the frame drives the drive frame to move. When the drive frame moves, it moves two moving blocks in the slide groove. When the two moving blocks move, they move two racks. When the racks move, they drive two rotating gears and two transmission gears to rotate. When the rotating gears and transmission gears rotate, they drive the corresponding rotating shaft and swing shaft to rotate. When the swing shaft rotates, it drives the support frame to swing away from the workstation frame, thus clearing the space above the workstation frame. When the rotating shaft rotates, it drives the rotating rod and the workstation frame to swing towards the unloading port. After the workstation frame is locked onto the unloading port, the first electric cylinder drives the clamping block away from the workstation frame, so that the nut on the workstation frame falls through the unloading port to unload the material.

[0017] The beneficial effects of the embodiments of the present invention are as follows:

[0018] In this invention, the moving mechanism drives the rotating mechanism and the swinging mechanism to operate, thereby causing the support frame to swing away from the workstation frame. At the same time, the workstation frame is rotated away from the support frame and closer to the material discharge port. The first electric cylinder drives the clamping block away from the workstation frame, thereby contacting the fixing of the nut and causing the nut to fall into the material discharge port for material discharge. This eliminates the need for the operator to reach into the workstation to retrieve the material, reducing the danger to the operator.

[0019] The tapping mechanism facilitates tapping nuts in multiple machining holes, thereby improving the tapping efficiency of nuts. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention;

[0022] Figure 2 This is a structural schematic diagram from another angle in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the bottom structure in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the rotating mechanism and the moving mechanism in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the swing mechanism and tapping mechanism in one embodiment of the present invention;

[0026] Figure 6 As one embodiment of the present invention Figure 4 A magnified structural diagram of point A in the middle;

[0027] Figure 7 As one embodiment of the present invention Figure 4 A magnified structural diagram of a portion of point B in the middle.

[0028] In the diagram: 1. Frame; 2. Workstation frame; 3. Processing port; 4. Clamping block; 5. First electric cylinder; 6. Support frame; 7. Rotating shaft; 8. Rotating rod; 9. Slider; 10. Rotating gear; 11. Swing shaft; 12. Transmission gear; 13. Moving block; 14. Gear rack; 15. Drive frame; 16. First hydraulic cylinder; 17. Lifting plate; 18. Tap; 19. First motor; 20. Slide rod; 21. Top plate; 22. Second electric cylinder; 23. Force plate; 24. Bottom rod; 25. Support block; 26. Discharge port; 27. Rotating seat. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0030] For the purpose of clarity, only the parts of the apparatus that are pertinent to the invention are shown in the drawings, and these do not necessarily represent the actual configuration or structure of the apparatus. In addition, in some of the drawings, parts that have the same structure or function are denoted by the same reference numerals, and only one of them is shown schematically for the purpose of clarity. In this document, "one" does not necessarily mean "only one", but can mean "more than one", and "several" includes "two" and more than "two".

[0031] In this document, unless otherwise specified or limited, the terms "mount", "connected", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise specified or limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the purpose of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] Embodiment one, as Figures 1-7As shown, it shows a multi-station fastener production tapping machine in an embodiment of the application, including rack 1, also including: station frame 2, clamping block 4, support frame 6, tapping mechanism and moving mechanism, the rack 1 is provided with blanking port 26, the station frame 2 is arranged at the top of the rack 1 through rotating mechanism, the station frame 2 is provided with a plurality of processing ports 3, the rotating mechanism is used for supporting the station frame 2 to overturn, the clamping block 4 is slidingly connected on one side of the station frame 2, the first electric cylinder 5 is installed on the clamping block 4, the output end of the first electric cylinder 5 penetrates through the clamping block 4 and is fixedly connected with the station frame 2, the support frame 6 is rotatably arranged at the top of the rack 1 through swing mechanism, the swing mechanism is used for driving the support frame 6 and the station frame 2 to swing in opposite directions, the tapping mechanism is arranged on the support frame 6 and is used for tapping the nut in the station frame 2, the moving mechanism is arranged at the top of the rack 1 and is used for driving the rotating mechanism and the swing mechanism to move, the rotating mechanism and the swing mechanism are driven to run through the moving mechanism, so as to drive the support frame 6 to swing away from the station frame 2, at the same time, the station frame 2 is driven to rotate to the position close to the blanking port 26 away from the support frame 6, and the clamping block 4 is driven away from the station frame 2 through the first electric cylinder 5, so as to contact and fix the nut, so that the nut falls into the blanking port 26 for blanking, without the need for the operator to put his hand into the station to take the material, the danger to the operator is reduced, the nut in the plurality of processing ports 3 is tapped through the tapping mechanism, so as to improve the tapping efficiency of the nut.

[0036] The rotating mechanism comprises rotating shafts 7, rotating rods 8, sliding blocks 9 and rotating gears 10, the rotating shafts 7 are two, both of which are rotationally connected to the top end of the rack 1, both of the rotating shafts 7 are fixedly connected with the rotating rods 8, the two sides of the work station frame 2 are fixedly connected with the rotating rods 8 respectively, the sliding blocks 9 are two, both of which are fixedly connected to the two sides of the work station frame 2, both of the sliding blocks 9 are provided with sliding holes, both of the rotating rods 8 are slidingly connected in the sliding holes respectively, both of the rotating shafts 7 are fixedly connected with the rotating gears 10 at the ends away from each other, the swinging mechanism comprises swinging shafts 11 and transmission gears 12, the top end of the rack 1 is fixedly connected with rotating seats 27, both of the rotating shafts 7 and the swinging shafts 11 are rotationally connected in the rotating seats 27 respectively, the swinging shafts 11 are two, both of which are rotationally connected to the top end of the rack 1, the bottom end of the support frame 6 is fixedly connected with the swinging shafts 11, both of the swinging shafts 11 are fixedly connected with the transmission gears 12 at the ends away from each other, the moving mechanism comprises moving blocks 13, toothed rods 14, driving frames 15 and first hydraulic cylinders 16, the moving blocks 13 are two, the rack 1 is provided with sliding grooves, both of the moving blocks 13 are slidingly connected in the sliding grooves respectively, the top end of both of the moving blocks 13 is fixedly connected with the toothed rods 14, both of the toothed rods 14 are engaged with every adjacent rotating gear 10 and transmission gear 12 respectively, the driving frames 15 are fixedly connected to the bottom end of both of the moving blocks 13, the first hydraulic cylinders 16 are installed at the bottom end of the rack 1, the output ends of the first hydraulic cylinders 16 are fixedly connected with the driving frames 15.

[0037] The first hydraulic cylinders 16 installed at the bottom end of the rack 1 drive the driving frames 15 to move, when the driving frames 15 move, both of the moving blocks 13 move in the sliding grooves, when both of the moving blocks 13 move, both of the toothed rods 14 move, when the toothed rods 14 move, both of the rotating gears 10 and the transmission gears 12 rotate, when the rotating gears 10 and the transmission gears 12 rotate, the corresponding rotating shafts 7 and swinging shafts 11 rotate, when the swinging shafts 11 rotate, the support frame 6 swings away from the work station frame 2, so as to leave the position above the work station frame 2, when the rotating shafts 7 rotate, the rotating rods 8 and the work station frame 2 swing to the discharge port 26, and after the work station frame 2 is buckled on the discharge port 26, the clamping blocks 4 driven by the first cylinders 5 move away from the work station frame 2, so that the nuts on the work station frame 2 fall through the discharge port 26 for discharging.

[0038] The tapping mechanism comprises a lifting plate 17, a tap 18, a first motor 19 and a support assembly. The lifting plate 17 is slidingly arranged at the bottom end of the support frame 6 through a lifting assembly. The tap 18 is provided with a plurality of tap 18, each of which is rotatably connected to the bottom end of the lifting plate 17. Each tap 18 corresponds to a plurality of machining ports 3 one by one. The first motor 19 is provided with a plurality of first motors 19, each of which is installed at the top end of the lifting plate 17. The output ends of the plurality of first motors 19 are penetrating through the lifting plate 17 and are fixedly connected to the top ends of the plurality of taps 18. The support assembly is provided with two support assemblies, which are arranged at the top end of the rack 1 and are used to support the support frame 6 when supporting the tap 18. The lifting assembly comprises a sliding rod 20, a top plate 21 and a second electric cylinder 22. The sliding rod 20 is provided with two sliding rods 20, which are fixedly connected to the top end of the lifting plate 17. Two sliding holes are formed in the support frame 6. The two sliding rods 20 are slidingly connected in the two sliding holes. The top plate 21 is fixedly connected to the top end of the two sliding rods 20. The second electric cylinder 22 is installed at the top end of the top plate 21. The output end of the second electric cylinder 22 penetrates through the top plate 21 and is fixedly connected to the lifting plate 17. The support assembly comprises a stress plate 23, a bottom rod 24 and a support block 25. The stress plate 23 is fixedly connected to one side of the support frame 6. The bottom rod 24 is fixedly connected to the top end of the rack 1. The support block 25 is fixedly connected to the top end of the bottom rod 24. The top end of the support block 25 is in contact with the stress plate 23.

[0039] The first motor 19 installed on the lifting plate 17 drives the tap 18 to rotate, and the second electric cylinder 22 is retracted. During the retraction of the first cylinder 5, the sliding rod 20 and the lifting plate 17 are lowered, so that the rotating tap 18 enters the hole in the nut for tapping.

[0040] In example one, the use method of the multi-station fastener production and manufacturing tapping machine according to example two of the present application is based on example one and supplements the description. The use method of the multi-station fastener production and manufacturing tapping machine according to the above scheme comprises the following steps:

[0041] Step one, tapping, the first motor 19 installed on the lifting plate 17 drives the tap 18 to rotate, and the second electric cylinder 22 is retracted. During the retraction of the first cylinder 5, the sliding rod 20 and the lifting plate 17 are lowered, so that the rotating tap 18 enters the hole in the nut for tapping;

[0042] Step two, discharging, the first hydraulic cylinder 16 installed through the bottom end of the rack 1 drive frame 15 to move, drive frame 15 when moving two moving block 13 in the slot moving, two moving block 13 when moving two gear bar 14 moving, gear bar 14 when moving two rotating gear 10 and two transmission gear 12 rotating, rotating gear 10 and transmission gear 12 rotating when the corresponding shaft 7 and swing shaft 11 rotating, swing shaft 11 rotating when the support frame 6 to the direction away from the work station frame 2 swing, so that the position above the work station frame 2 let go, rotating shaft 7 rotating when the rotating rod 8 and work station frame 2 swing down to the discharge port 26, and when the work station frame 2 buckle on the discharge port 26 after, the first electric cylinder 5 drive clamping block 4 away from the work station frame 2, so that the nut on the work station frame 2 through the discharge port 26 fall down for discharging.

[0043] It should be noted that the above examples are only to illustrate the technical solutions of the present application rather than limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by the equivalent, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A tapping machine for manufacturing multi-station fasteners, comprising a frame (1), characterized in that, Also includes: Workstation frame (2), the workstation frame (2) is set at the top of the machine frame (1) by a rotating mechanism, and the workstation frame (2) is provided with multiple processing ports (3). The rotating mechanism is used to support the workstation frame (2) to rotate. A clamping block (4) is slidably connected to one side of the workstation frame (2). A first electric cylinder (5) is installed on the clamping block (4). The output end of the first electric cylinder (5) passes through the clamping block (4) and is fixedly connected to the workstation frame (2). Support frame (6), the support frame (6) is rotatably mounted on the top of the frame (1) by a swing mechanism, the swing mechanism is used to drive the support frame (6) to swing in opposite directions with the workstation frame (2); The frame (1) is provided with a feeding port (26); A tapping mechanism is provided on the support frame (6) and is used to tap the nuts in the workstation frame (2); The moving mechanism is located at the top of the frame (1) and is used to drive the rotating mechanism and the swinging mechanism to move. The moving mechanism drives the rotating mechanism and the swinging mechanism to operate, thereby driving the support frame (6) to swing away from the workstation frame (2). At the same time, it drives the workstation frame (2) to rotate away from the support frame (6) and closer to the unloading port (26). The rotating mechanism includes: Two rotating shafts (7) are provided, and both rotating shafts (7) are rotatably connected to the top of the frame (1); Rotating rod (8), the rotating rod (8) is fixedly connected to both of the two rotating shafts (7), and the two sides of the workstation frame (2) are fixedly connected to the two rotating rods (8) respectively; Slider (9), two sliders (9) are provided, the two sliders (9) are respectively fixedly connected to both sides of the workstation frame (2), and each of the two sliders (9) is provided with a sliding hole, and the two rotating rods (8) are respectively slidably connected in the two sliding holes; Rotating gear (10), and the two rotating shafts (7) are fixedly connected to each other at their ends; The swing mechanism includes: Two swing shafts (11) are provided, and both swing shafts (11) are rotatably connected to the top of the frame (1). The bottom end of the support frame (6) is fixedly connected to the two swing shafts (11). The transmission gear (12) is fixedly connected to the ends of the two swing shafts (11) that are far apart from each other. The moving mechanism includes: a moving block (13), a rack (14), a drive frame (15), and a first hydraulic cylinder (16).

2. The tapping machine for multi-station fastener manufacturing according to claim 1, characterized in that, Two movable blocks (13) are provided. Two slide grooves are provided on the frame (1). The two movable blocks (13) are slidably connected in the two slide grooves respectively. The top of each of the two movable blocks (13) is fixedly connected to the rack (14). The two racks (14) mesh with each adjacent rotating gear (10) and transmission gear (12) respectively. The drive frame (15) is fixedly connected to the bottom of the two movable blocks (13). The first hydraulic cylinder (16) is installed at the bottom of the frame (1). The output end of the first hydraulic cylinder (16) is fixedly connected to the drive frame (15).

3. The tapping machine for multi-station fastener manufacturing according to claim 1, characterized in that, The tapping mechanism includes: Lifting plate (17), the lifting plate (17) is slidably disposed at the bottom end of the support frame (6) via a lifting assembly; Taps (18), multiple taps (18) are provided, and multiple taps (18) are rotatably connected to the bottom end of the lifting plate (17). Each tap (18) corresponds to one of the multiple processing ports (3). The first motor (19) is provided in multiple ways. The multiple first motors (19) are all installed on the top of the lifting plate (17). The output ends of the multiple first motors (19) pass through the lifting plate (17) and are respectively fixedly connected to the top of the multiple taps (18). The support assembly is provided in two parts, both of which are located at the top of the frame (1) and are used to support the support frame (6) when the tap (18) is tapping.

4. The tapping machine for multi-station fastener manufacturing according to claim 3, characterized in that, The lifting assembly includes: Slide rod (20), two slide rods (20) are provided, and the two slide rods (20) are fixedly connected to the top of the lifting plate (17). The support frame (6) has two sliding holes, and the two slide rods (20) are slidably connected in the two sliding holes respectively. Top plate (21), which is fixedly connected to the top of the two slide bars (20); The second electric cylinder (22) is installed at the top of the top plate (21). The output end of the second electric cylinder (22) passes through the top plate (21) and is fixedly connected to the lifting plate (17).

5. A tapping machine for multi-station fastener manufacturing according to claim 3, characterized in that, The support components include: Force-bearing plate (23), the force-bearing plate (23) is fixedly connected to one side of the support frame (6); A base rod (24) is fixedly connected to the top of the frame (1); Support block (25) is fixedly connected to the top of the bottom rod (24), and the top of the support block (25) is in contact with the force plate (23).

6. A tapping machine for multi-station fastener manufacturing according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to a plurality of rotating seats (27), and the two rotating shafts (7) and the two swing shafts (11) are respectively rotatably connected in the plurality of rotating seats (27).

7. A method of using a tapping machine for manufacturing multi-station fasteners, comprising using the tapping machine for manufacturing multi-station fasteners as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Tapping: The tap (18) is driven to rotate by the first motor (19) installed on the lifting plate (17), and retracted by the second electric cylinder (22). During the retraction of the second electric cylinder (22), the slide rod (20) and the lifting plate (17) are driven to descend, thereby allowing the rotating tap (18) to enter the hole on the nut for tapping. S2. Unloading: The first hydraulic cylinder (16) installed at the bottom of the frame (1) drives the drive frame (15) to move. When the drive frame (15) moves, it drives two moving blocks (13) to move in the chute. When the two moving blocks (13) move, they drive two racks (14) to move. When the racks (14) move, they drive two rotating gears (10) and two transmission gears (12) to rotate. When the rotating gears (10) and transmission gears (12) rotate, they drive the corresponding rotating shaft (7) and swing shaft (7). 11) When the swing shaft (11) rotates, it drives the support frame (6) to swing away from the workstation frame (2), thereby clearing the position above the workstation frame (2). When the rotating shaft (7) rotates, it drives the rotating rod (8) and the workstation frame (2) to swing towards the material outlet (26). After the workstation frame (2) is attached to the material outlet (26), the first electric cylinder (5) drives the clamping block (4) away from the workstation frame (2), so that the nut on the workstation frame (2) falls through the material outlet (26) to discharge the material.

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