Tapping equipment for nut machining and method thereof

Abstract

The invention discloses tapping equipment for nut machining and a method thereof, and relates to the technical field of tapping equipment.The tapping equipment comprises a rack, a feeding disc is rotationally arranged on the inner bottom wall of the rack, a one-way bearing is arranged in the feeding disc, a semicircular block is fixedly arranged on the inner wall of the one-way bearing, and a guide rod is movably inserted into the one-way bearing; the semicircular block is in sliding fit with the outer wall of the guide rod, an electric push rod is arranged on the top face of the rack, the extending end of the electric push rod penetrates through the rack and is fixedly provided with a connecting plate, and one end of the connecting plate is fixedly connected with the upper end of the guide rod. A connecting plate is pulled to move upwards through an electric push rod, a semicircular block drives an inner ring and an outer ring of a one-way bearing to rotate synchronously along with upward movement of a guide rod at the moment, a feeding disc is promoted to rotate to move a nut which is not tapped to the position below a tapping device, and then the nut is tapped conveniently through the tapping device; therefore, tapping processing of the nut is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of tapping equipment, and in particular to a tapping equipment and a method for nut processing. Background Art

[0002] Nuts are fasteners that are screwed together with bolts or screws through the inner threads for tightening. Stainless steel nuts are parts used to tightly connect mechanical equipment and are indispensable for all mechanical manufacturing. In the manufacturing process of nuts, tapping machines are needed to process the inner threads of stainless steel nuts.

[0003] The existing patent (Announcement No.: CN118905358A) discloses a tapping device and method for stainless steel nut processing, which belongs to the technical field of stainless steel nut processing. The following scheme is proposed. The tapping device and method for stainless steel nut processing are provided with a piston assembly, a cleaning assembly, an elastic transmission assembly and a rotating assembly. In the process of implementing this scheme, it is found that the following problems exist in the prior art and have not been well solved: when the device is used, the nut needs to be moved to the bottom of the tapping assembly by the operation of the rotating assembly, and then the electric push rod in the tapping assembly needs to be started to push the tapper down before the nut can be tapped, so it is more troublesome to tap the nut. Summary of the invention

[0004] In order to improve the problem that the device mentioned above needs to move the nut to the bottom of the tapping assembly by rotating the assembly during use, and then the electric push rod in the tapping assembly needs to be started to push the tapper downward before the nut can be tapped, which makes the tapping of the nut more troublesome, the present invention provides a tapping device and method for nut processing.

[0005] The present invention provides a tapping device and method for nut processing, which adopts the following technical solution: A tapping device for nut processing comprises a frame, an inner bottom wall of the frame is rotatably provided with a feed tray, a one-way bearing is arranged in the feed tray, a semicircular block is fixedly arranged on the inner wall of the one-way bearing, a guide rod is movably inserted in the one-way bearing, the semicircular block is slidably matched with the outer wall of the guide rod, an electric push rod is arranged on the top surface of the frame, the protruding end of the electric push rod passes through the frame and is fixedly provided with a connecting plate, one end of the connecting plate is fixedly connected to the upper end of the guide rod, the other end of the connecting plate is fixedly provided with a telescopic cover, and a tapper is arranged in the telescopic cover.

[0006] Through the above technical scheme, the connecting plate is pushed to move by the electric push rod and drives the guide rod to move and insert into the one-way bearing, and the semicircular block slides along the outer wall of the guide rod, thereby prompting the inner ring of the one-way bearing to rotate, and its outer ring and the feed plate remain stationary. As the guide rod moves downward, the movable plate and the inclined push rod are pushed downward, and at the same time, the telescopic cover and the tapper are driven downward through the connecting plate, and then the nut in the nut groove is tapped by the tapper.

[0007] Optionally, in the above-mentioned tapping equipment for nut processing, a bracket is fixedly provided on the inner wall of the frame, and the feeding tray is rotatably provided on the top of the bracket.

[0008] Through the above technical solution, the feeding tray is conveniently supported by the bracket, and the nuts are conveniently transported when the feeding tray rotates.

[0009] Optionally, in the above-mentioned tapping equipment for nut processing, a nut groove is opened on the top surface of the feed tray, a plurality of ball bearings are arranged on the top surface of the feed tray, a material storage box is fixedly connected to the top surface of the frame, and the drop-out port of the material storage box corresponds to the position of the nut groove.

[0010] Through the above technical solution, the nuts can be stored conveniently through the material storage box, and the single nut in the material storage box can fall into the nut groove through the nut groove.

[0011] Optionally, in the above-mentioned tapping equipment for nut processing, a movable groove is opened on the side wall of the bracket, a movable plate is movably arranged in the movable groove, one end of the movable plate is inserted into the movable groove and connected to the inner bottom wall of the movable groove by setting a first spring, a damper is arranged between the movable plate and the inner bottom wall of the movable groove, the other end of the movable plate extends out of the movable groove and is fixedly provided with an inclined push rod, and the position of the inclined push rod corresponds to the position of the nut groove.

[0012] Through the above technical solution, when the nut tapping is completed, the connecting plate is pulled up by the electric push rod. At this time, the connecting plate drives the guide rod to move up and causes the movable plate to lose pressure. Then the movable plate and the inclined push rod are pushed up by the first spring, and the nut is pushed out of the nut groove as the inclined push rod moves up, thereby realizing automatic unloading of the nut.

[0013] Optionally, in the above-mentioned tapping equipment for nut processing, a spiral groove is provided at the lower end of the outer wall of the guide rod, and a vertical groove is provided at the upper end of the outer wall of the guide rod, the vertical groove is connected to the spiral groove, and the lower end of the guide rod passes through a one-way bearing and abuts against the top surface of the movable plate.

[0014] Through the above technical solution, when the guide rod moves, the semicircular block slides along the inner walls of the spiral groove and the vertical groove. When the semicircular block moves along the inner wall of the spiral groove, the semicircular block drives the one-way bearing to rotate. When the semicircular block moves along the vertical groove, the semicircular block and the one-way bearing remain stationary.

[0015] Optionally, in the above-mentioned tapping equipment for nut processing, the telescopic hood includes a cylinder, a circular tube is movably provided on the inner wall of the cylinder, the top surface of the circular tube is connected to the inner top wall of the cylinder by setting a second spring, an arc-shaped baffle is fixedly provided on the bottom surface of the circular tube, the end of the arc-shaped baffle is slidably matched with the outer wall of the feed tray, and a pressure plate is fixedly provided on the inner side of the circular tube.

[0016] Through the above technical solution, the round tube can be received in the cylinder through the second spring. When the cylinder moves downward, the round tube abuts against the top surface of the feed tray, and the nut is pressed by the pressure plate, thereby reducing the possibility of the nut loosening during tapping. As the cylinder moves downward, the round tube is continuously received in the cylinder and the second spring is compressed and deformed.

[0017] Optionally, in the above-mentioned tapping equipment for nut processing, a micro water pump and a fan are arranged on the top surface of the frame, the liquid outlet end of the micro water pump and the air outlet end of the fan both pass through a circular tube and are fixedly provided with a nozzle, and a collecting box is arranged on the inner bottom wall of the frame, and the collecting box is below the tapper, and a filter is arranged inside the collecting box.

[0018] Through the above technical solution, the coolant is transported into the nozzle through a micro water pump, and then the coolant flow is sprayed through the nozzle to cool the nut, and the air flow is transported into the nozzle through the fan, and then the air flow is sprayed through the nozzle to blow away the debris generated when the nut is tapped.

[0019] Another technical solution proposed by the present invention is a tapping device and method for nut processing, comprising the following steps: S101: First, the nuts are placed into the storage box in sequence, and the nuts are forced to fall into the nut slots of the feeding tray through the storage box, and then the electric push rod is started; S102: The connecting plate is pushed to move by the electric push rod and the guide rod is driven to move and insert into the one-way bearing, and the semicircular block slides along the outer wall of the guide rod, thereby causing the inner ring of the one-way bearing to rotate, while the outer ring and the feeding plate remain stationary. As the guide rod moves downward, the movable plate and the inclined push rod are pushed downward, and at the same time, the telescopic cover and the tapping device are driven downward by the connecting plate, and then the nut in the nut groove is tapped by the tapping device; S103: coolant is delivered to the nozzle through a micro water pump, and then the coolant flow is sprayed through the nozzle to cool the nut, and the air flow is delivered to the nozzle through the fan, and then the air flow is sprayed through the nozzle to blow away the debris generated when the nut is tapped, and the coolant and the debris are collected through a collection box; S104: When the nut is tapped, the electric push rod pulls the connecting plate upward, and the connecting plate drives the guide rod to move upward and causes the movable plate to lose pressure, and then the movable plate and the inclined push rod are pushed upward by the first spring, and the speed of the movable plate moving upward is slowed down by the damper. At the same time, as the guide rod moves upward, the semicircular block drives the inner ring and the outer ring of the one-way bearing to rotate synchronously, and causes the feeding plate to rotate to move the tapped nut to the top of the inclined push rod, and as the inclined push rod moves upward, the nut is pushed out of the nut groove, thereby realizing automatic unloading of the nut, and the nut is collected by the collecting device; S105: When the feeding plate rotates, the untapped nut is moved to the bottom of the tapping device, and then S102 and S103 are repeated to tap the nut, and the nut is tapped repeatedly in this way.

[0020] In summary, the present invention includes at least one of the following beneficial effects: The connecting plate is pulled upward by the electric push rod. As the guide rod moves upward, the semicircular block drives the inner ring and the outer ring of the one-way bearing to rotate synchronously, and the feeding plate is rotated to move the untapped nut to the bottom of the tapping device. Then the nut is tapped by the tapping device, so it is more convenient to tap the nut. The connecting plate is pulled up by the electric push rod, and the connecting plate drives the guide rod to move up and causes the movable plate to lose pressure. Then the movable plate and the inclined push rod are pushed up by the first spring, and the nut is pushed out of the nut groove, thereby realizing automatic unloading of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a partial three-dimensional structural cross-sectional view of the feeding tray of the present invention; Figure 3 It is a partial three-dimensional structural cross-sectional view of the frame of the present invention; Figure 4 It is a partial three-dimensional expanded structural cross-sectional view of the present invention.

[0022] In the figure: 1, frame; 11, bracket; 111, movable groove; 112, movable plate; 113, first spring; 114, damper; 115, inclined push rod; 12, storage box; 13, micro water pump; 14, fan; 15, collection box; 16, filter; 2, feed tray; 21, nut groove; 22, ball; 3, one-way bearing; 4, semicircular block; 5, guide rod; 51, spiral groove; 52, vertical groove; 6, electric push rod; 7, connecting plate; 8, telescopic cover; 81, cylinder; 82, round tube; 83, second spring; 84, arc baffle; 85, pressure plate; 9, tapping tool. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-Figure 4 The present invention is described in further detail.

[0024] Please refer to the attached figure in the instruction manual Figure 1-Figure 4 An embodiment of the present invention is a tapping device for nut processing, comprising a frame 1, a feed tray 2 is rotatably provided on the inner bottom wall of the frame 1, a bracket 11 is fixedly provided on the inner wall of the frame 1, the feed tray 2 is rotatably provided on the top of the bracket 11, the feed tray 2 is conveniently supported by the bracket 11, and the nuts are conveniently transported when the feed tray 2 rotates.

[0025] A nut groove 21 is provided on the top surface of the feed tray 2, and a plurality of ball bearings 22 are arranged on the top surface of the feed tray 2. A storage box 12 is fixedly connected to the top surface of the frame 1, and the drop-out opening of the storage box 12 corresponds to the position of the nut groove 21. The storage box 12 is used to store nuts conveniently, and the nut groove 21 allows a single nut in the storage box 12 to fall into the nut groove 21. At this time, when the feed tray 2 rotates, the friction between the nuts in the storage box 12 and the feed tray 2 is achieved through the ball bearings 22. When the nut groove 21 of the feed tray 2 moves to coincide with the storage box 12, subsequent nuts fall into the nut groove 21 again.

[0026] It should be noted that the material storage box 12 can also use existing feeding equipment to transport the nuts into the nut grooves 21.

[0027] A movable groove 111 is provided on the side wall of the bracket 11, and a movable plate 112 is movably arranged in the movable groove 111. One end of the movable plate 112 is inserted into the movable groove 111 and connected to the inner bottom wall of the movable groove 111 by setting a first spring 113. A damper 114 is arranged between the movable plate 112 and the inner bottom wall of the movable groove 111. The other end of the movable plate 112 extends out of the movable groove 111 and is fixedly provided with an inclined push rod 115. The position of the inclined push rod 115 corresponds to the position of the nut groove 21. The movable plate 112 is conveniently installed through the movable groove 111. When the guide rod 5 moves downward, the movable plate 112 is pushed The movable plate 112 and the inclined push rod 115 move downward. When the nut tapping is completed, the connecting plate 7 is pulled upward by the electric push rod 6. At this time, the connecting plate 7 drives the guide rod 5 to move upward and causes the movable plate 112 to lose pressure. Then, the movable plate 112 and the inclined push rod 115 are pushed upward by the first spring 113, and the speed of the movable plate 112 moving upward is slowed down by the damper 114, thereby reducing the possibility of the inclined push rod 115 being inserted into the nut groove 21 when the feed tray 2 rotates, causing the feed tray 2 to be stuck, and as the inclined push rod 115 moves upward, the nut is pushed out of the nut groove 21, thereby realizing automatic unloading of the nut.

[0028] The one-way bearing 3 is arranged in the feeding tray 2, and a semicircular block 4 is fixedly arranged on the inner wall of the one-way bearing 3. A guide rod 5 is movably inserted in the one-way bearing 3, and the semicircular block 4 is slidably matched with the outer wall of the guide rod 5. The lower end of the outer wall of the guide rod 5 is provided with a spiral groove 51, and the upper end of the outer wall of the guide rod 5 is provided with a vertical groove 52, and the vertical groove 52 is communicated with the spiral groove 51. The lower end of the guide rod 5 passes through the one-way bearing 3 and abuts against the top surface of the movable plate 112. When the guide rod 5 moves, the semicircular block 4 slides along the inner walls of the spiral groove 51 and the vertical groove 52. When the semicircular block 4 moves along the inner wall of the spiral groove 51, the semicircular block 4 drives the one-way bearing 3 to rotate. When the semicircular block 4 moves along the vertical groove 52, the semicircular block 4 and the one-way bearing 3 remain stationary, and when the guide rod 5 moves, the semicircular block 4 moves the same distance along the inner wall of the spiral groove 51, thereby prompting the one-way bearing 3 to drive the feeding tray 2 to rotate each time to keep consistent.

[0029] An electric push rod 6 is disposed on the top surface of the frame 1 , and a protruding end of the electric push rod 6 passes through the frame 1 and is fixedly provided with a connecting plate 7 , so that the electric push rod 6 can facilitate the connection plate 7 to move up and down.

[0030] One end of the connecting plate 7 is fixedly connected to the upper end of the guide rod 5, and the other end of the connecting plate 7 is fixedly provided with a telescopic cover 8, which includes a cylinder 81, and a circular tube 82 is movably provided on the inner wall of the cylinder 81. The top surface of the circular tube 82 is connected to the inner top wall of the cylinder 81 by setting a second spring 83, and an arc-shaped baffle 84 is fixedly provided on the bottom surface of the circular tube 82. The end of the arc-shaped baffle 84 is slidably matched with the outer wall of the feeding tray 2, and a pressing plate 85 is fixedly provided on the inner side of the circular tube 82. 3 enables the round tube 82 to be received in the cylinder 81. When the cylinder 81 moves downward, the round tube 82 abuts against the top surface of the feeding tray 2, and the nut is pressed by the pressing plate 85, thereby reducing the possibility of the nut loosening during tapping. As the cylinder 81 moves downward, the round tube 82 is continuously received in the cylinder 81, and the second spring 83 is compressed and deformed. The cylinder 81, the round tube 82 and the arc baffle 84 cooperate to block the debris generated by the nut, thereby reducing the possibility of the debris splashing around.

[0031] A tapping device 9 is arranged in the telescopic cover 8. The tapping device 9 includes a motor and a tapping head. The tapping head is driven to rotate by the motor to facilitate tapping of the nut. The tapping device 9 is a prior art.

[0032] A micro water pump 13 and a fan 14 are provided on the top surface of the frame 1. The liquid outlet end of the micro water pump 13 and the air outlet end of the fan 14 both pass through the circular tube 82 and are fixedly provided with a nozzle. A collecting box 15 is provided on the inner bottom wall of the frame 1. The collecting box 15 is below the tapping device 9. A filter screen 16 is provided in the collecting box 15. The coolant is transported to the nozzle through the micro water pump 13, and then the coolant flow is sprayed through the nozzle to cool the nut, and the airflow is transported to the nozzle through the fan 14, and then the airflow is sprayed through the nozzle to blow away the debris generated during the tapping of the nut, and the coolant and the debris are collected through the collecting box 15, and the debris and the coolant are separated through the filter screen 16.

[0033] In summary: the electric push rod 6 pushes the connecting plate 7 to move and drives the guide rod 5 to move and insert into the one-way bearing 3, and makes the semicircular block 4 slide along the outer wall of the guide rod 5, thereby causing the inner ring of the one-way bearing 3 to rotate, and its outer ring and the feeding tray 2 remain stationary; As the guide rod 5 moves downward, the movable plate 112 and the inclined push rod 115 move downward, and at the same time, the telescopic cover 8 and the tapping device 9 move downward through the connecting plate 7, and then the nut in the nut groove 21 is tapped by the tapping device 9; When the nut tapping is completed, the connecting plate 7 is pulled up by the electric push rod 6. As the guide rod 5 moves up, the semicircular block 4 drives the inner ring and the outer ring of the one-way bearing 3 to rotate synchronously, and prompts the feed plate 2 to rotate to move the untapped nut to the bottom of the tapping device 9, and then the nut is tapped by the tapping device 9.

[0034] In order to better demonstrate a tapping device for nut processing, this embodiment now proposes a tapping device for nut processing and a method thereof, including the following steps: Step 1: First, the nuts are placed into the storage box 12 in sequence, and the nuts are forced to pass through the storage box 12 and fall into the nut slot 21 of the feeding tray 2, and then the electric push rod 6 is started; Step 2: Push the connecting plate 7 to move and drive the guide rod 5 to move and insert into the one-way bearing 3 through the electric push rod 6, and make the semicircular block 4 slide along the outer wall of the guide rod 5, so as to cause the inner ring of the one-way bearing 3 to rotate, and its outer ring and the feeding tray 2 remain stationary. As the guide rod 5 moves downward, the movable plate 112 and the inclined push rod 115 are pushed downward, and at the same time, the telescopic cover 8 and the tapping device 9 are driven downward through the connecting plate 7, and then the nut in the nut groove 21 is tapped by the tapping device 9; Step 3: The coolant is delivered to the nozzle through the micro water pump 13, and then the coolant flow is sprayed through the nozzle to cool the nut, and the air flow is delivered to the nozzle through the fan 14, and then the air flow is sprayed through the nozzle to blow away the debris generated during the nut tapping, and the coolant and the debris are collected through the collection box 15; Step 4: When the nut tapping is completed, the connecting plate 7 is pulled upward by the electric push rod 6. At this time, the connecting plate 7 drives the guide rod 5 to move upward and causes the movable plate 112 to lose pressure. Then, the movable plate 112 and the inclined push rod 115 are pushed upward by the first spring 113, and the speed of the movable plate 112 moving upward is slowed down by the damper 114. At the same time, as the guide rod 5 moves upward, the semicircular block 4 drives the inner ring and the outer ring of the one-way bearing 3 to rotate synchronously, and the feeding plate 2 is driven to rotate to move the tapped nut to the top of the inclined push rod 115, and as the inclined push rod 115 moves upward, the nut is pushed out of the nut slot 21, thereby realizing automatic unloading of the nut, and the nut is collected by the collecting device; Step 5: When the feeding plate 2 rotates, the untapped nuts are moved to the bottom of the tapping device 9, and then steps 2 and 3 are repeated to tap the nuts, and the nuts are tapped repeatedly in this way.

[0035] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tapping device for nut processing, comprising a frame (1), characterized in that: A feeding tray (2) is rotatably arranged on the inner bottom wall of the frame (1), a one-way bearing (3) is arranged inside the feeding tray (2), a semicircular block (4) is fixedly arranged on the inner wall of the one-way bearing (3), a guide rod (5) is movably inserted in the one-way bearing (3), the semicircular block (4) is slidably matched with the outer wall of the guide rod (5), an electric push rod (6) is arranged on the top surface of the frame (1), the extended end of the electric push rod (6) passes through the frame (1) and is fixedly arranged with a connecting plate (7), one end of the connecting plate (7) is fixedly connected to the upper end of the guide rod (5), the other end of the connecting plate (7) is fixedly arranged with a telescopic cover (8), and a tapping device (9) is arranged inside the telescopic cover (8).

2. The nut processing tapping device according to claim 1, characterized in that: A bracket (11) is fixedly arranged on the inner wall of the frame (1), and the feeding tray (2) is rotatably arranged on the top of the bracket (11).

3. The nut processing tapping device according to claim 2, characterized in that: The top surface of the feed tray (2) is provided with a nut groove (21), the top surface of the feed tray (2) is provided with a plurality of balls (22), the top surface of the frame (1) is fixedly plugged with a material storage box (12), and the material drop opening of the material storage box (12) corresponds to the position of the nut groove (21).

4. The nut processing tapping device according to claim 3, characterized in that: A movable groove (111) is formed on the side wall of the bracket (11), and a movable plate (112) is movably arranged in the movable groove (111). One end of the movable plate (112) is inserted into the movable groove (111) and connected to the inner bottom wall of the movable groove (111) via a first spring (113). A damper (114) is arranged between the movable plate (112) and the inner bottom wall of the movable groove (111). The other end of the movable plate (112) extends out of the movable groove (111) and is fixedly provided with an inclined push rod (115). The position of the inclined push rod (115) corresponds to the position of the nut groove (21).

5. The nut processing tapping device according to claim 4, characterized in that: A spiral groove (51) is formed at the lower end of the outer wall of the guide rod (5), and a vertical groove (52) is formed at the upper end of the outer wall of the guide rod (5). The vertical groove (52) is connected to the spiral groove (51). The lower end of the guide rod (5) passes through the one-way bearing (3) and abuts against the top surface of the movable plate (112).

6. The nut processing tapping device according to claim 1, characterized in that: The telescopic cover (8) comprises a cylinder (81), the inner wall of the cylinder (81) is movably provided with a circular tube (82), the top surface of the circular tube (82) is connected to the inner top wall of the cylinder (81) by means of a second spring (83), the bottom surface of the circular tube (82) is fixedly provided with an arc-shaped baffle (84), the end of the arc-shaped baffle (84) is slidably matched with the outer wall of the feeding tray (2), and a pressing plate (85) is fixedly provided on the inner side of the circular tube (82).

7. The nut processing tapping device according to claim 6, characterized in that: A micro water pump (13) and a fan (14) are arranged on the top surface of the frame (1); the liquid outlet end of the micro water pump (13) and the air outlet end of the fan (14) both pass through the circular tube (82) and are fixedly provided with nozzles; a collecting box (15) is arranged on the inner bottom wall of the frame (1); the collecting box (15) is located below the tapping device (9); and a filter screen (16) is arranged inside the collecting box (15).

8. An operating method of a nut processing tapping device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S101: first, the nuts are placed into the material storage box (12) in sequence, and the nuts are forced to pass through the material storage box (12) and fall into the nut slot (21) of the feeding plate (2), and then the electric push rod (6) is started; S102: The connecting plate (7) is pushed by the electric push rod (6) to move and drive the guide rod (5) to move and insert into the one-way bearing (3), and the semicircular block (4) slides along the outer wall of the guide rod (5), thereby causing the inner ring of the one-way bearing (3) to rotate, while the outer ring and the feed plate (2) remain stationary. As the guide rod (5) moves downward, the movable plate (112) and the inclined push rod (115) are pushed downward, and at the same time, the telescopic cover (8) and the tapping device (9) are driven downward through the connecting plate (7), and then the nut in the nut groove (21) is tapped by the tapping device (9); S103: coolant is delivered to the nozzle through the micro water pump (13), and the coolant flow is then sprayed through the nozzle to cool the nut, and airflow is delivered to the nozzle through the fan (14), and airflow is then sprayed through the nozzle to blow away debris generated when the nut is tapped, and the coolant and the debris are collected through the collection box (15); S104: When the nut tapping is completed, the electric push rod (6) pulls the connecting plate (7) upward, and the connecting plate (7) drives the guide rod (5) upward and causes the movable plate (112) to lose pressure, and then the first spring (113) drives the movable plate (112) and the inclined push rod (115) upward, and the damper (114) slows down the speed of the movable plate (112) upward. At the same time, as the guide rod (5) moves upward, the semicircular block (4) drives the inner ring and the outer ring of the one-way bearing (3) to rotate synchronously, and causes the feeding plate (2) to rotate to move the tapped nut to the top of the inclined push rod (115), and as the inclined push rod (115) moves upward, the nut is pushed out of the nut groove (21), thereby realizing automatic unloading of the nut, and the nut is collected by the collecting device; S105: When the feeding plate (2) rotates, the untapped nut is moved to the bottom of the tapping device (9), and then S102 and S103 are repeated to tap the nut, and the nut is tapped repeatedly in this way.

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