Metal rotating head nut tapping machine for perforating machine

Abstract

The invention discloses a metal rotating head nut tapping machine for a perforating machine, which relates to the technical field of thread machining and comprises a machine table, a machine body, a main shaft, a screw tap and an auxiliary shaft, the device further comprises a clamping assembly, a driving assembly and a control assembly. The clamping assembly is used for clamping a nut, and the clamping assembly is provided with a transmission mechanism; the driving assembly is used for controlling the auxiliary shaft to move vertically. The control assembly is used for controlling locking between the screw tap and the main shaft and locking between the screw tap and the auxiliary shaft. The screw tap is directly connected through the auxiliary shaft after the screw tap finishes tapping, so that the main shaft is separated from the screw tap; in the machining process, the screw tap cannot directly damage the threads due to secondary passing through the threads or cannot indirectly damage the threads due to extrusion of scrap iron, and the machining quality of the threads is effectively improved; and meanwhile, after tapping is completed, the resetting speed of equipment components is not limited, rapid resetting can be conducted, and then the working efficiency of the batch tapping process is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thread processing, and specifically to a metal rotary head nut tapping machine for a perforating machine. Background Art

[0002] In the traditional tapping process, after the tapping cutter head cuts and forms the threads on the inner wall of the nut, the cutter head needs to rotate in the reverse direction and exit the nut along the thread trajectory so that the nut can be taken out; this results in: 1. The cutting edge of the cutter head is relatively sharp. During the exit process, the cutting edge will inevitably scrape against the formed threads, resulting in thread damage and affecting the final quality of nut tapping. 2. After tapping is completed, there are iron chips in the thread gaps. During the exit process of the cutter head, there is a risk of squeezing the iron chips and causing the iron chips to embed in the thread wall under the action of the squeezing force, resulting in a possible jamming phenomenon during the use of the nut. 3. During the exit process of the cutter head, the faster the exit speed, the greater the squeezing force on the iron chips. Correspondingly, the greater the risk of the iron chips embedding in the thread wall, resulting in a limited exit speed of the cutter head and a decrease in processing efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a metal rotary head nut tapping machine for a perforating machine to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A metal rotary head nut tapping machine for a perforating machine, including a machine table and a machine body, further including a main shaft, a tap and a sub-shaft; the main shaft is fixedly connected to the output shaft of the machine body; both the upper and lower ends of the tap are provided with pins, and the lower end of the main shaft and the upper end of the sub-shaft are respectively provided with slots capable of engaging the pins, and the upper and lower ends of the tap can be locked with the main shaft and the sub-shaft respectively; It further includes a clamping assembly, a driving assembly and a control assembly; The clamping assembly is used for clamping the nut, and the clamping assembly is provided with a transmission mechanism; The driving assembly is arranged at the lower end of the machine table and is rotationally connected to the lower end of the sub-shaft, and the driving assembly is used for controlling the vertical displacement of the sub-shaft; The control assembly is used for controlling the locking between the tap and the main shaft and the sub-shaft; the control assembly can, after the tapping of the tap is completed, control the cancellation of the locking state between the tap and the main shaft, and when clamping the nut, control the tap to disengage from the locking state with the sub-shaft; The transmission mechanism can lock the nut by the clamping assembly after the main shaft moves down to a first predetermined height and during the downward movement of the sub-shaft, and cancel the locking of the nut after the main shaft moves up to a second predetermined height.

[0005] Further, the clamping assembly includes clamping plates symmetrically arranged about the sub-axis on the left and right. Chutes are respectively formed in the machine table corresponding to the lower sides of the clamping plates. A first slider is fixedly connected to the lower end of the clamping plate. The first slider is slidably connected to the chute. Elastic members I are fixedly connected to the ends of the clamping plates away from the sub-axis. The elastic members I are fixedly connected to the machine table. A second slider is slidably connected to the chute. An elastic member II is fixedly connected to the second slider. A pressing plate is fixedly connected to the elastic member II. The pressing plate can press the first slider. The transmission mechanism can drive the second slider to move towards the sub-axis as the main shaft moves downward, and the transmission mechanism can prevent the pressing plate from pressing the first slider before the sub-axis moves downward.

[0006] Further, the transmission mechanism includes a main rod arranged horizontally. The machine body includes a fuselage, and the fuselage is fixedly connected to the machine table. An acting part is vertically slidably connected to the fuselage. The main shaft is arranged at the lower end of the acting part. The acting part can perform vertical displacement relative to the fuselage. The main rod is fixedly connected to the lower end of the acting part. Vertical connecting rods I are fixedly connected to both ends of the main rod. A through groove is formed in the machine table below the connecting rod I. An inclined connecting rod II is arranged in the through groove. The lower end of the connecting rod II is closer to the sub-axis than the upper end. The upper end of the connecting rod II is rotatably connected to the lower end of the connecting rod I. A third slider is horizontally slidably connected to the lower end of the machine table. The third slider is rotatably connected to the lower end of the connecting rod II. The third slider is fixedly connected to a first connecting plate. The first connecting plate is fixedly connected to the first slider on the same side. A blocking assembly is arranged on the driving component. The blocking assembly is used to prevent the pressing plate from pressing the second slider.

[0007] Further, the driving component includes a fixedly arranged driving part. An installation plate is arranged at the upper end of the driving part. The driving part is used to drive the vertical displacement of the installation plate. The lower end of the sub-axis is rotatably connected to the upper end of the installation plate.

[0008] Further, the blocking assembly includes two second connecting plates symmetrically and fixedly connected to both sides of the installation plate. A first partition is arranged at the upper end of the second connecting plate. The first partition is used to block the movement of the pressing plate towards the sub-axis.

[0009] Further, a first chamfer is formed on the side of the first partition close to the pressing plate, and a second chamfer is formed on the side of the pressing plate close to the first partition.

[0010] Further, second partitions are longitudinally slidably connected to the upper ends of the second connecting plates on the side of the first partition close to the sub-axis. An elastic member III is fixedly connected between the first partition and the second partition. A locking member is externally connected to the first partition. The locking member can lock the first partition and the second connecting plate when the elastic member III is compressed to the limit.

[0011] Further, the control assembly includes an electromagnet externally connected to the slot. The electromagnet is used to adsorb the pin.

[0012] Furthermore, the main shaft includes a first base shaft, the slot is opened at the lower end of the first base shaft, a first sleeve is sleeved on the first base shaft, and a discharge groove is vertically opened in the first sleeve.

[0013] Furthermore, the auxiliary shaft includes a second base shaft, the second base shaft is rotatably connected to the mounting plate, the slot is opened at the upper end of the second base shaft, and a second sleeve is sleeved on the second base shaft.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By providing an auxiliary shaft that can lock with the tap, after the tapping is completed, the tap is directly connected through the auxiliary shaft, and the main shaft is disengaged from the tap; thus, after the tapping is completed, the nut can be taken out directly by moving the main shaft upward to disengage from the nut, without interference from the tool, avoiding the action of the tap retracting along the original path from the nut, preventing the tap from directly damaging the thread due to passing through the thread again during the processing, or indirectly damaging the thread by squeezing iron filings, effectively improving the processing quality of the thread; at the same time, after the tapping is completed, when the equipment components are reset for re-tapping, the nut will not be damaged, and its reset speed will not be restricted, enabling rapid reset, thereby greatly accelerating the working efficiency of the batch tapping process.

[0015] 2. Using the transmission mechanism, the clamping assembly controls the clamping of the nut through the main shaft and the auxiliary shaft, enabling the equipment to complete automatic clamping, and the means is stable and reliable. At the same time, the transmission mechanism is used to prevent the pressing plate from squeezing the first slider, so that the pressing plate is only tightened when the tapping starts, effectively increasing the time range for nut loading during the operation of the equipment and effectively improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a front sectional view of the overall structure of the present invention; Figure 3 is Figure 2 an enlarged schematic view of the structure at A in Figure 4 is a half-sectional view of the overall structure of the present invention; Figure 5 is Figure 4 an enlarged schematic view of the structure at B in Figure 6 is a schematic diagram of the working process of the present invention.

[0017] In the attached drawings: 1. Machine table; 2. Machine body; 2-1. Machine body; 2-2. Acting part; 3. Main shaft; 3-1. First base shaft; 3-2. First shaft sleeve; 3-2-1. Discharge groove; 4. Tap; 5. Sub-shaft; 5-1. Second base shaft; 5-2. Second shaft sleeve; 6. Pin; 7. Slot; 8. Clamping plate; 9. Slide groove; 10. First slider; 11. First elastic member; 12. Second slider; 13. Second elastic member; 14. Pressure plate; 14-1. Second chamfer; 15. Main rod; 16. First connecting rod; 17. Through groove; 18. Second connecting rod; 19. Third slider; 20. First connecting plate; 21. Driving member; 22. Mounting plate; 23. Second connecting plate; 24. First partition; 24-1. First chamfer; 25. Second partition; 26. Third elastic member. Detailed implementation mode

[0018] Please refer to Figures 1 - 6 , the present invention provides a technical solution: a metal rotary head nut tapping machine for a perforating machine, including a machine table 1 and a machine body 2, and further including a main shaft 3, a tap 4 and a sub-shaft 5; the main shaft 3 is fixedly connected to the output shaft of the machine body 2; pins 6 are arranged at both the upper and lower ends of the tap 4, and slots 7 capable of engaging with the pins 6 are respectively opened at the lower end of the main shaft 3 and the upper end of the sub-shaft 5, and the upper and lower ends of the tap 4 can be locked with the main shaft 3 and the sub-shaft 5 respectively; It further includes a clamping assembly, a driving assembly and a control assembly; The clamping assembly is used for clamping nuts, and the clamping assembly is provided with a transmission mechanism; The driving assembly is arranged at the lower end of the machine table 1 and is rotatably connected to the lower end of the sub-shaft 5, and the driving assembly is used for controlling the vertical displacement of the sub-shaft 5; The control assembly is used for controlling the locking between the tap 4 and the main shaft 3 and the sub-shaft 5; the control assembly can cancel the locked state between the tap 4 and the main shaft 3 after the tap 4 finishes tapping, and can control the tap 4 to disengage from the locked state with the sub-shaft 5 when clamping nuts; The transmission mechanism can lock the nut by the clamping assembly after the main shaft 3 moves down to the first predetermined height and during the downward movement of the sub-shaft 5, and can cancel the locking of the nut after the main shaft 3 moves up to the second predetermined height.

[0019] Refer to Figure 6 , the working process of the equipment is a-b-c-d-e-a, with the a state as the initial state: State a: The tap 4 is locked with the lower end of the main shaft 3, and the tap 4 is separated from the upper end of the sub-shaft 5; then the nut is sleeved on the sub-shaft 5, and the nut is centered by the sub-shaft 5 to improve the coaxiality between the inner hole of the nut and the tap 4, and to avoid the low coaxiality between the inner hole of the nut and the tap 4 caused by the manufacturing tolerance of the nut and the perforation tolerance, resulting in different thread depths of the nut finally processed and affecting the quality of the nut production; State b: Then, the machine body 2 controls the main shaft 3 to drive the tap 4 to move downward, and makes the pin 6 at the lower end of the tap 4 dock with the slot 7 at the upper end of the auxiliary shaft 5. After the docking is completed (at this time, the main shaft 3 moves downward to the first predetermined height), the control component controls the tap 4 and the auxiliary shaft 5 to lock; State c: Then, the main shaft 3 drives the tap 4 to rotate and move downward to tap the nut (during this process, as the main shaft 3 enters the threaded hole of the nut, the main shaft 3 can fit against the inner wall of the threaded hole to center the threaded hole), and at the same time, the driving component drives the auxiliary shaft 5 to move downward synchronously. During the downward movement of the auxiliary shaft 5, the clamping component clamps the nut, so that the tapping process proceeds smoothly; until the tap 4 moves below the nut and the threading on the inner wall of the nut is completed; State d: At this time, the control component controls the cancellation of the locked state between the tap 4 and the main shaft 3. At the same time, the main shaft 3 stops rotating and moves upward to disengage from the tap 4 and the nut. Until it moves upward to the second predetermined height, the clamping component is controlled by the transmission mechanism to cancel the locking of the nut, so that the nut can be taken out; State e: After the nut is taken out, the auxiliary shaft 5 drives the tap 4 to move upward to the initial position of the auxiliary shaft 5, and at the same time, the main shaft 3 moves downward to dock with the tap 4; after the main shaft 3 and the tap 4 are docked, the control component controls the locking between the tap 4 and the main shaft 3, and at the same time, controls the cancellation of the locked state between the tap 4 and the auxiliary shaft 5; Then, the main shaft 3 drives the tap 4 to move upward to the initial position, providing space for the process of sleeving the nut onto the auxiliary shaft 5; thus, another tapping is carried out.

[0020] In the present invention, by providing the auxiliary shaft 5 that can lock with the tap 4, directly connecting the tap 4 through the auxiliary shaft 5 after the tapping of the tap 4 is completed, and making the main shaft 3 disengage from the tap 4; furthermore, after the tapping is completed, the nut can be taken out without being interfered by the tool by directly moving the main shaft 3 upward to disengage from the nut, avoiding the action of the tap 4 retracting from the nut along the original path, so that the tap 4 will not directly damage the thread due to passing through the thread again during the processing, or indirectly damage the thread by squeezing iron chips, effectively improving the processing quality of the thread; at the same time, after the tapping is completed, the components of the equipment are reset for another tapping process, which will not damage the nut, so that its reset speed will not be restricted and can be quickly reset, thereby greatly accelerating the working efficiency of the batch tapping process.

[0021] The clamping assembly includes clamping plates 8 symmetrically arranged about the sub-spindle 5 on the left and right. The machine table 1 is provided with sliding grooves 9 corresponding to the lower sides of the clamping plates 8. The lower ends of the clamping plates 8 are fixedly connected with a first slider 10, and the first slider 10 is slidably connected with the sliding groove 9. One ends of the clamping plates 8 far from the sub-spindle 5 are fixedly connected with a first elastic member 11, and the first elastic member 11 is fixedly connected with the machine table 1. A second slider 12 is slidably connected with the sliding groove 9. The second slider 12 is fixedly connected with a second elastic member 13, and the second elastic member 13 is fixedly connected with a pressing plate 14. The pressing plate 14 can press the first slider 10; the transmission mechanism can drive the second slider 12 to move towards the sub-spindle 5 as the main spindle 3 moves downward, and the transmission mechanism can prevent the pressing plate 14 from pressing the first slider 10 before the sub-spindle 5 moves downward.

[0022] The elastic force of the second elastic member 13 is much greater than that of the first elastic member 11. During the process of the equipment in Figure 6 state a, the nut is clamped by the elastic force of the first elastic member 11, so that the side wall of the nut fits with the clamping plate 8; Then, during the downward movement of the main spindle 3, the transmission mechanism moves downward with the main spindle 3 to control the second slider 12 to move towards the sub-spindle 5, so that the second slider 12 drives the pressing plate 14 to move towards the sub-spindle 5 through the second elastic member 13 until the pressing plate 14 encounters an obstacle and cannot move further. At this time, the second elastic member 13 is compressed, so that the pressing plate 14 has a force to press towards the sub-spindle 5, and the pressing force increases as the second slider 12 moves towards the sub-spindle 5. At this time, under the action of the transmission mechanism, the pressing plate 14 cannot press the first slider 10; Until the equipment starts to change from Figure 6 state b to state c, the sub-spindle 5 moves downward, and the equipment starts tapping. During this process, the transmission mechanism no longer hinders the pressing plate 14 from pressing the first slider 10. Under the action of the elastic force of the second elastic member 13, the first slider 10 presses the nut, so that the nut is clamped, thereby ensuring that the nut will not rotate during the tapping process (the nut is centered by sleeving the sub-spindle 5 on the nut, and then clamped by the pressing plate 14 to limit the rotation of the nut to clamp the nut); then, after the tapping is completed, the equipment enters state d, the main spindle 3 moves upward, the second slider 12 moves away from the sub-spindle 5, and drives the second elastic member 13 and the pressing plate 14 to move away from the sub-spindle 5, so that the pressing plate 14 is only pressed by the first elastic member 11, so that the pressing plate 14 can be easily pushed, and the nut can be taken out smoothly.

[0023] By using the transmission mechanism, the clamping assembly controls the clamping of the nut through the main spindle 3 and the sub-spindle 5, so that the equipment can complete automatic clamping, and the means is stable and reliable. At the same time, the transmission mechanism is used to prevent the pressing plate 14 from pressing the first slider 10, so that the pressing plate 14 is pressed only when the tapping starts, effectively increasing the time range of nut loading during the operation of the equipment and effectively improving the processing efficiency.

[0024] The transmission mechanism includes a transversely arranged main rod 15, the machine body 2 includes a fuselage 2-1, the fuselage 2-1 is fixedly connected to the machine platform 1, the fuselage 2-1 is vertically slidably connected to the action part 2-2, the main shaft 3 is arranged at the lower end of the action part 2-2, the action part 2-2 can be vertically displaced relative to the fuselage 2-1, the main rod 15 is fixedly connected to the lower end of the action part 2-2, and both ends of the main rod 15 are fixedly connected to a vertically arranged connecting rod 16, and the machine platform 1 is provided with a through groove 17 below the connecting rod 16. An inclined connecting rod 2 18 is arranged in the groove 17, and the lower end of the connecting rod 2 18 is closer to the secondary shaft 5 than the upper end; the upper end of the connecting rod 2 18 is rotatably connected to the lower end of the connecting rod 1 16, and the lower end of the machine table 1 is laterally slidably connected to a slider 3 19, and the slider 3 19 is rotatably connected to the lower end of the connecting rod 2 18, and the slider 3 19 is fixedly connected to a connecting plate 1 20, and the connecting plate 1 20 is fixedly connected to the slider 10 on the same side; a blocking assembly is arranged on the driving assembly, and the blocking assembly is used to prevent the pressure plate 14 from squeezing the slider 2 12.

[0025] When the equipment passes through state a, state b, and finally state c, the action part 2-2 moves the main shaft 3 downward continuously. During this process, the action part 2-2 drives the main rod 15 to move vertically downward, so that the main rod 15 drives the connecting rod 16 to move vertically downward, and then the upper end of the connecting rod 2 18 rotatably connected to the lower end of the connecting rod 16 moves downward accordingly, and the lower end of the connecting rod 2 18 is rotatably connected to the slider 3 19, so that the lower end of the connecting rod 2 18 can only move laterally. Furthermore, as the upper end of the connecting rod 2 18 continues to move downward, the lower end of the connecting rod 2 18 drives the slider 3 19 to move toward the secondary shaft 5, and then drives the slider 2 12 to move toward the secondary shaft 5.

[0026] The driving assembly includes a fixed driving member 21 , a mounting plate 22 is provided at the upper end of the driving member 21 , and the driving member 21 is used to drive the mounting plate 22 to vertically move; the lower end of the secondary shaft 5 is rotatably connected to the upper end of the mounting plate 22 .

[0027] The blocking assembly includes two connecting plates 23 fixedly connected to both sides of the mounting plate 22 and symmetrical to each other. A partition plate 24 is provided on the upper end of the connecting plate 23; the partition plate 24 is used to prevent the pressure plate 14 from moving toward the secondary shaft 5.

[0028] Before the secondary shaft 5 moves downward, the partition 24 and the pressure plate 14 overlap in the vertical direction, so that when the pressure plate 14 moves toward the secondary shaft 5, it will be blocked by the partition 24; and when the secondary shaft 5 moves downward, the corresponding mounting plate 22 will drive the partition 24 to move downward, so that the partition 24 is separated from the moving track of the pressure plate 14, so that the pressure plate 14 can squeeze the slider 10, thereby clamping the clamp 8.

[0029] A chamfer 1 24 - 1 is formed on one side of the partition 24 close to the pressing plate 14 , and a chamfer 2 14 - 1 is formed on one side of the pressing plate 14 close to the partition 24 .

[0030] By setting the chamfer, when the partition 24 moves downward and leaves the moving track of the pressure plate 14, the pressure plate 14 can move along the chamfer track toward the slider 10, thereby reducing the distance between the pressure plate 14 and the slider 10 under the action of elastic force, thereby reducing the impact of the pressure plate 14 on the slider 10 and improving the stability of the equipment.

[0031] The upper end of the connecting plate 23 is located on the side of the partition 1 24 close to the secondary shaft 5 and is longitudinally slidably connected with the partition 2 25. An elastic member 3 26 is fixedly connected between the partition 1 24 and the partition 2 25. The partition 1 24 is externally connected to a locking component, which can lock the partition 1 24 and the connecting plate 2 23 when the elastic member 3 26 is compressed to the limit.

[0032] The elastic force of the elastic member three 26 is much smaller than that of the elastic member two 13. When the secondary shaft 5 does not move downward, the pressure plate 14 moves toward the slider 10. First, the pressure plate 14 squeezes the partition plate 24, so that the partition plate 24 drives the partition plate two 25 to move toward the slider 10 through the elastic member three 26, until the partition plate two 25 fits the slider 10, and then the partition plate 24 continues to move toward the slider 10 with the pressure plate 14, so that the elastic member three 26 is compressed. When the elastic member three 26 is compressed to the limit, the locking component locks the partition plate 24 and the connecting plate two 23, so that the pressure plate 14 cannot continue to move toward the slider 10, thereby preventing the slider 10 from being squeezed by the pressure plate 14; in this process, the elastic member three 26 and the partition plate two 25 exist as trigger members for fixing the partition plate 24, so that the partition plate 24 is as close to the slider 10 as possible before being fixed, thereby reducing the subsequent impact of the pressure plate 14 on the slider 10.

[0033] The control component includes an electromagnet connected inside and outside the slot 7 , and the electromagnet is used to attract the latch 6 .

[0034] The main shaft 3 comprises a base shaft 3-1, a slot 7 is provided at the lower end of the base shaft 3, the base shaft 3 is sleeved with a shaft sleeve 3-2, and the shaft sleeve 3-2 is vertically provided with a discharge groove 3-2-1.

[0035] The secondary shaft 5 includes a second base shaft 5 - 1 , which is rotatably connected to the mounting plate 22 , a slot 7 is provided at the upper end of the second base shaft 5 - 1 , and a second shaft sleeve 5 - 2 is sleeved on the second base shaft 5 - 1 .

[0036] By means of the sleeved shaft sleeve 1 3 - 2 and the sleeve 2 5 - 2 , the equipment can flexibly replace the shaft sleeve 1 3 - 2 and the shaft sleeve 2 5 - 2 according to the size of the processed nut.

Claims

1. A metal rotary head nut tapping machine for a punching machine, comprising a machine platform (1) and a machine body (2), characterized in that: The machine comprises a main shaft (3), a tap (4) and a secondary shaft (5); the main shaft (3) is fixedly connected to the output shaft of the machine body (2); the tap (4) is provided with a bayonet (6) at both upper and lower ends, and slots (7) capable of engaging the bayonet (6) are respectively provided at the lower end of the main shaft (3) and the upper end of the secondary shaft (5); the upper and lower ends of the tap (4) can be locked with the main shaft (3) and the secondary shaft (5) respectively; It also includes a clamping assembly, a driving assembly and a control assembly; The clamping assembly is used to clamp the nut, and the clamping assembly is provided with a transmission mechanism; The driving assembly is arranged at the lower end of the machine platform (1) and is rotatably connected to the lower end of the secondary shaft (5), and the driving assembly is used to control the vertical displacement of the secondary shaft (5); The control component is used to control the locking between the tap (4) and the main shaft (3) and the secondary shaft (5); the control component can control the tap (4) and the main shaft (3) to cancel the locking state after the tap (4) has been tapped, and control the tap (4) and the secondary shaft (5) to release the locking state when clamping the nut; The transmission mechanism can lock the nut of the clamping assembly after the main shaft (3) moves down to a first predetermined height and during the downward movement of the secondary shaft (5), and cancel the locking of the nut after the main shaft (3) moves up to a second predetermined height.

2. A metal rotating head nut tapping machine for a punching machine according to claim 1, characterized in that: The clamping assembly comprises a clamping plate (8) symmetrically arranged about the secondary shaft (5); a slide groove (9) is provided below the corresponding clamping plate (8) of the machine table (1); a slider 1 (10) is fixedly connected to the lower end of the clamping plate (8); the slider 1 (10) is slidably connected to the slide groove (9); an elastic member 1 (11) is fixedly connected to the end of the clamping plate (8) away from the secondary shaft (5); the elastic member 1 (11) is fixedly connected to the machine table (1); the slide groove (9) is slidably connected to a slider 2 (12); the slider 2 (12) is fixedly connected to an elastic member 2 (13); the elastic member 2 (13) is fixedly connected to a pressure plate (14); the pressure plate (14) is capable of squeezing the slider 1 (10); the transmission mechanism is capable of driving the slider 2 (12) to move toward the secondary shaft (5) as the main shaft (3) moves downward; the transmission mechanism is capable of preventing the pressure plate (14) from squeezing the slider 1 (10) before the secondary shaft (5) moves downward.

3. A metal rotating head nut tapping machine for a punching machine according to claim 2, characterized in that: The transmission mechanism comprises a main rod (15) arranged transversely, the machine body (2) comprises a body (2-1), the body (2-1) is fixedly connected to the machine platform (1), the body (2-1) is vertically slidably connected to an action part (2-2), the main shaft (3) is arranged at the lower end of the action part (2-2), the action part (2-2) can be vertically displaced relative to the body (2-1), the main rod (15) is fixedly connected to the lower end of the action part (2-2), both ends of the main rod (15) are fixedly connected to a vertically arranged connecting rod (16), and the machine platform (1) is provided with a through slot (17) below the connecting rod (16). The through groove (17) is provided with an inclined connecting rod 2 (18), the lower end of the connecting rod 2 (18) is closer to the secondary shaft (5) than the upper end; the upper end of the connecting rod 2 (18) is rotatably connected to the lower end of the connecting rod 1 (16); the lower end of the machine platform (1) is laterally slidably connected with a slider 3 (19), the slider 3 (19) is rotatably connected to the lower end of the connecting rod 2 (18), the slider 3 (19) is fixedly connected with a connecting plate 1 (20), and the connecting plate 1 (20) is fixedly connected to the slider 1 (10) on the same side; a blocking assembly is provided on the driving assembly, and the blocking assembly is used to prevent the pressure plate (14) from squeezing the slider 2 (12).

4. A metal rotating head nut tapping machine for a punching machine according to claim 3, characterized in that: The driving assembly comprises a fixedly arranged driving member (21), the upper end of which is provided with a mounting plate (22), and the driving member (21) is used to drive the mounting plate (22) to move vertically; the lower end of the secondary shaft (5) is rotatably connected to the upper end of the mounting plate (22).

5. A metal rotating head nut tapping machine for a punching machine according to claim 4, characterized in that: The blocking assembly comprises two mutually symmetrical connecting plates (23) fixedly connected to both sides of the mounting plate (22), and a partition plate (24) is provided on the upper end of the connecting plate (23); the partition plate (24) is used to prevent the pressure plate (14) from moving in the direction of the secondary shaft (5).

6. A metal rotating head nut tapping machine for a punching machine according to claim 5, characterized in that: The partition plate 1 (24) is provided with a chamfer 1 (24-1) on one side close to the pressing plate (14), and the pressing plate (14) is provided with a chamfer 2 (14-1) on one side close to the partition plate 1 (24).

7. A metal rotating head nut tapping machine for a punching machine according to claim 6, characterized in that: The upper end of the connecting plate 2 (23) is located on the side of the partition 1 (24) close to the secondary shaft (5) and is longitudinally slidably connected to the partition 2 (25). An elastic member 3 (26) is fixedly connected between the partition 1 (24) and the partition 2 (25). The partition 1 (24) is externally connected to a locking member. The locking member can lock the partition 1 (24) and the connecting plate 2 (23) when the elastic member 3 (26) is compressed to the limit.

8. A metal rotating head nut tapping machine for a punching machine according to claim 7, characterized in that: The control component comprises an electromagnet connected inside and outside the slot (7), and the electromagnet is used to adsorb the latch pin (6).

9. The metal rotating head nut tapping machine for a punching machine according to claim 1, characterized in that: The main shaft (3) comprises a base shaft one (3-1), the slot (7) is provided at the lower end of the base shaft one (3), the base shaft one (3) is sleeved with a shaft sleeve one (3-2), and the shaft sleeve one (3-2) is vertically provided with a discharge groove (3-2-1).

10. A metal rotating head nut tapping machine for a punching machine according to claim 4, characterized in that: The secondary shaft (5) comprises a second base shaft (5-1), the second base shaft (5-1) being rotatably connected to a mounting plate (22), the slot (7) being provided at an upper end of the second base shaft (5-1), and the second base shaft (5-1) being sleeved with a second shaft sleeve (5-2).

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