A punching device with an anti-breakage cutter head for processing watertight doors

Abstract

The present invention relates to the technical field of watertight door processing, and specifically to a punching device with an anti-breakage cutter head for watertight door processing, comprising a machine tool, a mounting base fixedly connected to the bottom end of the inner wall of the machine tool, a matching block slidably connected to the upper end of the mounting base, a driving and adjusting mechanism fixedly installed between the matching block and the machine tool, the matching block being connected to a connecting frame through the driving and adjusting mechanism, and the compressed gas is quickly discharged, pushing the elastic contraction rod to extend instantaneously, driving the connecting rod and the abutment block to move upward, so that the abutment block is engaged with another conical block, causing the cutting drill bit to rotate in the opposite direction, preventing breakage caused by continuous rotation in the same direction, and automatically switching the rotation direction at the moment the drill bit is stuck through the linkage of the mechanical structure and the hydraulic system, effectively releasing the stress when the drill bit is stuck, greatly reducing the risk of drill bit breakage, extending the service life of the tool, improving processing safety and efficiency, and reducing downtime and replacement costs caused by tool damage.

Description

Technical Field

[0001] The invention relates to the technical field of watertight door processing, in particular to a punching device with an anti-breakage cutter head for watertight door processing. Background Art

[0002] In the fields of shipbuilding and marine engineering, watertight doors are key components that ensure cabin sealing and navigation safety. They are often manufactured from high-strength steel or alloys to meet stringent waterproofing and pressure resistance requirements. However, drilling holes for these doors is challenging due to the high hardness and toughness of the material. Drill bits are prone to jamming, wear, and even breakage, severely impacting processing efficiency and product quality.

[0003] Currently, traditional drilling equipment has significant deficiencies in its protective mechanisms. When the drill bit encounters anomalies such as hard spots inside the workpiece or chip blockage, causing it to jam, the equipment is unable to sense and respond in time and continues to rotate forward, causing the drill bit to be subjected to excessive torque. This not only increases wear but also easily causes serious damage such as chipping and fracture. At the same time, existing equipment lacks effective monitoring of the drill bit's wear status and is unable to take timely protective measures when tool wear exceeds the limit. Continuing to use a severely worn drill bit will not only reduce drilling accuracy, but may also cause the drill bit to break due to sudden changes in cutting force, posing a safety hazard.

[0004] Furthermore, even if some equipment is equipped with an overload protection function, it can only be shut down and cannot release the stress caused by a stuck drill bit by rotating it in the opposite direction, making it difficult to fundamentally resolve the drill bit damage issue. Therefore, developing a drilling device that can identify drill bit jams and wear in real time and automatically implement reverse rotation protection is of great significance for improving the processing quality of watertight doors, reducing production costs, and ensuring production safety.

[0005] A Chinese patent (publication number CN108907734A) discloses a punching method for a punching device, comprising the steps of: S1, first fixing the iron plate to be punched on a fixing plate (3); then connecting a protective cover (4) to the fixing plate (3); S2, punching the iron plate using a punching device (5); S3, connecting the protective cover (4) to a base (1) using a rotating shaft device (10); and S4, polishing the iron plate using a polishing device (2).

[0006] According to the above scheme, using multiple cutter heads for drilling can improve the drilling efficiency. However, during the drilling process, if the cutter head is stuck with foreign objects, it is easy to break, or the cutter head is worn and can also break after long-term use. For this reason, we propose a drilling device with an anti-breakage cutter head for watertight door processing. Summary of the Invention

[0007] The object of the present invention is to provide a punching device with an anti-breakage cutter head for processing watertight doors, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A punching device with an anti-breakage cutter head for processing watertight doors includes a machine tool, the bottom end of the inner wall of the machine tool is fixedly connected to a mounting base, the upper end of the mounting base is slidably connected to a matching block, a driving adjustment mechanism is fixedly installed between the matching block and the machine tool, the matching block is connected to a connecting frame via the driving adjustment mechanism, an adjusting steering mechanism is fixedly installed on the outer wall of the connecting frame, the outer wall of the connecting frame is also rotatably connected to the matching frame via a rotating shaft, a trigger protection mechanism is fixedly installed on the bottom of the matching frame, and the matching frame is fixedly connected to a cutting drill bit via the trigger protection mechanism.

[0010] As a further feature of this solution, the drive adjustment mechanism includes a gantry, which is slidably connected to the outer wall of the mounting base, and a first servo motor that can drive the gantry to move is fixedly installed on the bottom of the mounting base.

[0011] As a further embodiment of this solution, a second servo motor that can drive the matching block to move is fixedly installed on the outer wall of the gantry, a slider is slidably connected to the outer wall of the matching block, and a third servo motor that can drive the slider to move up and down is also fixedly installed on the outer wall of the matching block.

[0012] As a further feature of this solution, the steering adjustment mechanism includes a fourth servo motor, which is fixedly mounted on the outer wall of the connecting frame, and the output end of the fourth servo motor is fixedly connected to the first bevel gear.

[0013] As a further feature of this solution, the outer wall of the connecting frame is rotatably connected to two conical blocks, and matching grooves are provided inside the two conical blocks. The outer wall of the connecting frame is rotatably connected to two second conical gears that can drive the conical blocks to rotate, and each of the second conical gears is engaged with the first conical gear.

[0014] As a further feature of this solution, an abutment block is clamped on the inner wall of one of the matching grooves, and the upper end of the abutment block is fixedly connected to an electric telescopic arm, and the upper end of the electric telescopic arm abuts against the inner wall of the other matching groove.

[0015] As a further feature of this solution, the trigger protection mechanism includes an air box, which is rotatably connected to the bottom of the matching frame. The bottom of the air box is rotatably connected to a rotating circular plate. The outer wall of the air box is fixedly connected to a transmission round block through multiple connecting arms. The interior of the transmission round block is fixedly connected to a fixed tube. The upper and lower ends of the fixed tube are slidably sleeved with a mobile tube with a reset function, and a pressure sensor is fixedly installed inside each of the mobile tubes.

[0016] As a further feature of this solution, each of the movable tubes is fixedly connected to a mating circular plate at one end away from the fixed tube, and a telescopic circular tube is fixedly connected to the bottom of the mating circular plate located below the fixed tube. The bottom of the telescopic circular tube is fixedly connected to the cutting drill bit, and the rotating circular plate is connected to the nearest mating circular plate through multiple hoses. The two mating circular plates are fixedly connected by multiple steel ropes, and the outer wall of each steel rope is slidably passed through the interior of the transmission round block.

[0017] As a further feature of this solution, each of the mating circular plates is rotatably connected to the transmission circular block by a corrugated sleeve, the bottom end of the inner wall of the movable tube located below the fixed tube is fixedly connected to an elastic telescopic rod, the upper end of the air box is fixedly connected to an elastic contraction rod, the upper end of the elastic contraction rod is fixedly connected to a connecting rod, and the upper end of the connecting rod is fixedly connected to the bottom of the abutment block.

[0018] As a further feature of this solution, the upper end of the air box is also fixedly connected to a vent pipe, the outer wall of the vent pipe is provided with multiple air ports, the inner wall of the vent pipe is slidably connected to an abutment cylinder, and the bottom of the abutment cylinder is fixedly connected to the elastic telescopic rod, and a miniature hydraulic shock absorber is fixedly connected between the upper end of the abutment cylinder and the top of the inner wall of the vent pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the present invention is in use, when the cutting drill bit is stuck in the hole of the watertight door, the continuous rotation of the transmission round block will pull the steel rope, causing the matching round plate to move toward each other and squeeze the moving tube. The pressure sensor triggers the electric telescopic arm to quickly contract, driving the elastic telescopic rod to move upward and squeezing the micro hydraulic shock absorber. When the abutting cylinder is separated from the air port, the compressed gas is quickly discharged, pushing the elastic contraction rod to extend instantly, driving the connecting rod and the abutting block to move upward, so that the abutting block is engaged with the other conical block, causing the cutting drill bit to rotate in the opposite direction, preventing breakage caused by continuous rotation in the same direction. Through the linkage of the mechanical structure and the hydraulic system, the rotation direction can be automatically switched at the moment the drill bit is stuck, effectively releasing the stress when the drill bit is stuck, greatly reducing the risk of drill bit breakage, extending the service life of the tool, improving processing safety and efficiency, and reducing downtime and replacement costs caused by tool damage;

[0021] 2. When the present invention is used, when the cutting drill bit is severely worn, the two matching circular plates shrink, and when the abutting cylinder is separated from the abutment with the outer wall of the air port, the abutting block will separate from the inner wall of the corresponding matching groove and abut against the inner wall of the other matching groove. The shrinking gas rod will also drive the connecting frame to move, and the cutting drill bit will be separated from the direct abutment with the watertight door. The wear degree of the drill bit can be detected by pressure prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The front view shows a punching device with an anti-breakage cutter head for processing watertight doors.

[0023] Figure 2 The present invention provides an overhead view of the installation base of a punching device with an anti-breakage cutter head used for processing watertight doors.

[0024] Figure 3 The present invention is a schematic diagram showing the position structure of a slider in a punching device with an anti-breakage cutter head used for processing watertight doors.

[0025] Figure 4 The present invention is a structural schematic diagram of an adjusting steering mechanism in a punching device with an anti-breakage cutter head for processing watertight doors.

[0026] Figure 5 The present invention is a side view of an adjusting steering mechanism in a punching device with an anti-breakage cutter head for processing watertight doors.

[0027] Figure 6 The present invention is a schematic diagram of the structure of a trigger protection mechanism in a punching device with an anti-breakage cutter head for processing watertight doors.

[0028] Figure 7 The diagram is a schematic diagram of the internal structure of an elastic retractable rod in a punching device with an anti-breakage cutter head for processing watertight doors.

[0029] Figure 8 The present invention is a schematic diagram showing the position structure of a matching frame in a punching device with an anti-breakage cutter head for processing watertight doors.

[0030] Figure 9 The present invention is a schematic diagram showing the position structure of a cutting drill bit in a drilling device with an anti-breakage cutter head used for processing watertight doors.

[0031] Figure 10 The present invention is a schematic diagram showing the position structure of a matching circular plate in a punching device with an anti-breakage cutter head used for processing watertight doors.

[0032] Figure 11 The present invention is a schematic diagram showing the position structure of a movable tube in a punching device with an anti-breakage cutter head for processing watertight doors.

[0033] Figure 12The diagram shows the position structure of a rotating air ring in a punching device with an anti-breakage cutter head used for processing watertight doors.

[0034] In the figure: 1, machine tool; 2, sliding door; 3, mounting base; 4, first servo motor; 5, first slide bar; 6, first threaded rod; 7, gantry; 8, second slide bar; 9, second threaded rod; 10, second servo motor; 11, third servo motor; 12, third threaded rod;

[0035] 13. Third slide bar; 14. Sliding block; 15. Retractable air rod; 16. Fourth servo motor; 17. Connecting frame; 18. Matching frame; 19. Cutting drill bit; 20. Rotating air ring; 21. First bevel gear; 22. Drive belt; 23. First pulley; 24. Conical block; 25. Abutment block; 26. Air box; 27. Connecting arm; 28. Drive round block; 29. ​​Connecting rod; 30. Elastic retractable rod; 31. Second bevel gear; 32. Electric telescopic arm; 33. Matching circular plate; 34. Corrugated sleeve;

[0036] 36. Telescopic tube; 37. Elastic telescopic rod; 38. Air release tube; 39. Abutting cylinder; 40. Air port; 41. Rotating circular plate; 42. Steel rope; 43. Fixed tube; 44. Moving tube; 45. Matching block; 46. Second pulley; 101. Drive adjustment mechanism; 201. Adjustment steering mechanism; 301. Trigger protection mechanism. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0038] See also Figures 1 to 4 As shown, in an embodiment of the present invention, a punching device with an anti-breakage cutter head for processing watertight doors includes a machine tool 1, a mounting base 3 is fixedly connected to the bottom end of the inner wall of the machine tool 1, a matching block 45 is slidably connected to the upper end of the mounting base 3, a driving adjustment mechanism 101 is fixedly installed between the matching block 45 and the machine tool 1, the matching block 45 is connected to a connecting frame 17 through the driving adjustment mechanism 101, an adjusting steering mechanism 201 is fixedly installed on the outer wall of the connecting frame 17, and the outer wall of the connecting frame 17 is also rotatably connected to a matching frame 18 through a rotating shaft, a trigger protection mechanism 301 is fixedly installed on the bottom of the matching frame 18, and the matching frame 18 is fixedly connected to a cutting drill bit 19 through the trigger protection mechanism 301, and two sliding doors 2 are slidably connected to the outer wall of the machine tool 1, and the two sliding doors 2 are symmetrically distributed on the outer wall of the machine tool 1. Example

[0039] See also Figure 2 As shown, the driving adjustment mechanism 101 includes a gantry 7, which is slidably connected to the outer wall of the mounting base 3, and the bottom of the mounting base 3 is also fixedly installed with a first servo motor 4 that can drive the gantry 7 to move. Specifically, the output end of the first servo motor 4 is fixedly connected to a first threaded rod 6, and the outer wall of the first threaded rod 6 is connected to the internal thread of the gantry 7. The bottom of the mounting base 3 is also fixedly connected to two first sliding rods 5, and the gantry 7 is slidably connected to the outer walls of the two first sliding rods 5. The outer wall of the gantry 7 is fixedly installed with a second servo motor 10 that can drive the matching block 45 to move. Specifically, the output end of the second servo motor 10 is fixedly connected to a second threaded rod 9, and the outer wall of the second threaded rod 9 is connected to the internal thread of the matching block 45. The end of the gantry 7 close to the second servo motor 10 is fixedly connected with two second sliding rods 8, and the two second sliding rods 8 are symmetrically distributed on the outer wall of the gantry 7, and the matching block 45 is slidably connected to the outer walls of the two second sliding rods 8;

[0040] The outer wall of the mating block 45 is slidably connected to the slider 14. The outer wall of the mating block 45 is also fixedly mounted with a third servo motor 11 that can drive the slider 14 to move up and down. Specifically, the output end of the third servo motor 11 is fixedly connected to a third threaded rod 12. The outer wall of the third threaded rod 12 is threadedly connected to the inner part of the slider 14. The outer wall of the mating block 45 is also fixedly connected to two third slide rods 13. The slider 14 is slidably connected to the outer walls of the two third slide rods 13.

[0041] See also Figures 3 to 5As shown, the steering mechanism 201 includes a fourth servo motor 16, which is fixedly mounted on the outer wall of the connecting frame 17. The output end of the fourth servo motor 16 is fixedly connected to the first bevel gear 21. The outer wall of the connecting frame 17 is also rotatably connected to two conical blocks 24 through a rotating shaft. The two conical blocks 24 are symmetrically distributed up and down on the outer wall of the connecting frame 17. Matching grooves are provided inside the two conical blocks 24, and the inner walls of the matching grooves are conical. The outer wall of the connecting frame 17 is also rotatably connected to two second bevel gears 31 that can drive the conical blocks 24 to rotate through a rotating shaft. The two second bevel gears 31 are connected to the outer wall of the connecting frame 17. The outer wall of the frame 17 is also symmetrically distributed up and down. Specifically, the opposite ends of the two second bevel gears 31 are fixedly connected to the second pulley 46, and the opposite ends of the two conical blocks 24 are fixedly connected to the first pulley 23. A transmission belt 22 is tensioned between each second pulley 46 and a corresponding first pulley 23. Two tensioners are fixedly installed on the outer wall of the connecting frame 17. The abutment wheel of each tensioner abuts against the outer wall of a corresponding transmission belt 22. The tensioning degree of the transmission belt 22 can be adjusted by the tensioner. The tensioner is a prior art and will not be described in detail here. The tensioner is not shown in the figure.

[0042] Each second bevel gear 31 is meshed with the first bevel gear 21. An abutment block 25 is clamped to the inner wall of one of the matching grooves. The outer wall of the abutment block 25 and the inner walls of all the matching grooves are fixedly connected with a plurality of engaging teeth. The engaging teeth can enhance the friction between the abutment block 25 and the inner wall of the matching groove. The upper end of the abutment block 25 is fixedly connected to the electric telescopic arm 32. The upper end of the electric telescopic arm 32 abuts against the inner wall of another matching groove.

[0043] See also Figure 3 、 Figures 6 to 12As shown, the trigger protection mechanism 301 includes an air box 26, which is rotatably connected to the bottom of the matching frame 18. The bottom of the air box 26 is rotatably connected to a rotating circular plate 41 through a rotating shaft. The outer wall of the air box 26 is fixedly connected to a transmission round block 28 through multiple connecting arms 27. The multiple connecting arms 27 are distributed in a circle between the air box 26 and the transmission round block 28. The interior of the transmission round block 28 is fixedly connected to a fixed tube 43. The upper and lower ends of the fixed tube 43 are slidably sleeved with a mobile tube 44 with a reset function. A pressure sensor is fixedly installed inside each of the mobile tubes 44. Each mobile tube 44 is fixedly connected to the fixed tube 43. There is a first spring, which is made of high-strength spring steel. The end of each movable tube 44 away from the fixed tube 43 is fixedly connected to the matching circular plate 33. The bottom of the matching circular plate 33 located below the fixed tube 43 is fixedly connected to the telescopic circular tube 36. The bottom of the telescopic circular tube 36 is fixedly connected to the cutting drill bit 19. When the two movable tubes 44 are squeezed, the telescopic circular tube 36 and the cutting drill bit 19 are pressurized. When the watertight door is squeezed and drilled, since the first spring is made of high-strength spring steel, its compressive strength is sufficient to firmly support the pressure borne by the second threaded rod 9 during the drilling process, thereby providing reliable support for the drilling operation.

[0044] The rotating circular plate 41 is connected to the nearest matching circular plate 33 through multiple hoses, and the two matching circular plates 33 are fixedly connected by multiple steel ropes 42. At this time, all the steel ropes 42 are in a taut state. The multiple steel ropes 42 are circumferentially distributed between the two matching circular plates 33, and the outer wall of each steel rope 42 is slidably passed through the interior of the transmission circular block 28. The steel ropes 42 are made of carbon steel. Carbon steel has high strength, good toughness, low cost, corrosion resistance and high temperature resistance, and is durable. Each matching circular plate 33 is rotatably connected to the transmission circular block 28 with a corrugated sleeve 34. The corrugated sleeve 34 is made of rubber. The rubber material has good corrosion resistance and high temperature resistance. The bottom end of the inner wall of the moving tube 44 below the fixed tube 43 is fixedly connected to an elastic telescopic rod 37. The outer wall of the elastic telescopic rod 37 is passed through the interior of the air box 26. The upper end of the air box 26 is fixedly connected to the elastic contraction rod 30, and the upper end of the elastic contraction rod 30 is fixedly connected to the connecting rod 29.

[0045] The upper end of the connecting rod 29 is fixedly connected to the bottom of the abutment block 25, and the outer wall of the connecting rod 29 is slidably penetrated into one of the tapered blocks 24 inside the first pulley 23 (specifically, the connecting rod 29 is penetrated into the interior of the tapered block 24 located below). The upper end of the air box 26 is also fixedly connected to a deflation pipe 38, which is located inside the elastic contraction rod 30. The outer wall of the deflation pipe 38 is provided with a plurality of air ports 40, and the plurality of air ports 40 are distributed circumferentially on the outer wall of the deflation pipe 38. The inner wall of the deflation pipe 38 is slidably connected to an abutment cylinder 39, and the bottom of the abutment cylinder 39 is fixedly connected to the elastic telescopic rod 37. A micro hydraulic shock absorber is fixedly connected between the upper end of the abutment cylinder 39 and the top end of the inner wall of the deflation pipe 38 (its model is the American ACE shock absorber SC190, and the micro hydraulic shock absorber can delay the reset speed of the abutment cylinder 39);

[0046] The outer wall of the elastic contraction rod 30 is fixedly connected to the rotating air ring 20. Specifically, the outer wall of the elastic contraction rod 30 is provided with a plurality of circular openings, which are connected to the interior of the rotating air ring 20. (Refer to Figure 12 ), a contraction gas rod 15 is fixedly connected between the slider 14 and the connecting frame 17, and the contraction gas rod 15 is fixedly connected to the rotating air ring 20 through a rubber tube. When the elastic contraction rod 30 is filled with high-pressure gas and then enters the contraction gas rod 15 through the rubber tube, the contraction gas rod 15 extends to drive the connecting frame 17 to move upward, and the connecting frame 17 will drive the cutting drill bit 19 to move upward, so that the cutting drill bit 19 will quickly break away from the clamping connection with the inner wall of the watertight door hole.

[0047] The working principle of the present invention is:

[0048] When the present invention is used, the door panel of the watertight door is placed on the upper end of the mounting base 3, the first servo motor 4 is started to drive the first threaded rod 6 to rotate, and the first threaded rod 6 will drive the gantry 7 to move back and forth along the outer wall of the first slide bar 5, so that the position of the cutting drill bit 19 can be adjusted. Then, the second servo motor 10 drives the matching block 45 to move through the second threaded rod 9, and the matching block 45 drives the cutting drill bit 19 to adjust the direction. Then, the third servo motor 11 drives the third threaded rod 12 to rotate, and the third threaded rod 12 drives the slider 14 to move up and down, so that the position of the cutting drill bit 19 can be adjusted up and down.

[0049] Start the fourth servo motor 16 to drive the first bevel gear 21 to rotate, the first bevel gear 21 drives the two second bevel gears 31 to rotate, each second bevel gear 31 will drive the first pulley 23 to rotate through the corresponding second pulley 46 and the transmission belt 22, and the two first pulleys 23 will drive the conical block 24 to rotate. At this time, the two conical blocks 24 are in two opposite directions. At this time, the abutment block 25 is clamped in the corresponding matching groove inner wall, and the conical block 24 will drive the abutment block 25 to rotate through the matching groove. The abutment block 25 will rotate in the corresponding conical block 24, and the abutment block 25 drives the elastic contraction rod 30 to rotate through the connecting rod 29. The elastic contraction rod 30 drives the transmission round block 28 to rotate through the air box 26 and the connecting arm 27. The transmission round block 28 will drive all the matching circular plates 33 to rotate through the steel rope 42, and the matching circular plates 33 will pass The cutting drill bit 19 is driven to rotate by the telescopic circular tube 36, and the third servo motor 11 drives the third threaded rod 12 to rotate, and the slider 14 will move down along the outer wall of the third threaded rod 12. When the cutting drill bit 19 rotates and abuts against the outer wall of the watertight door, the slider 14 will drop, and the slider 14 presses down the matching frame 18 through the connecting frame 17, and the matching frame 18 presses down the transmission round block 28 through the connecting arm 27. The transmission round block 28 applies pressure to the cutting drill bit 19 through the moving tube 44 and the first spring. The first spring inside the moving tube 44 is squeezed, but the elastic coefficient of the first spring is greater than the squeezing force exerted on the cutting drill bit 19, and the cutting drill bit 19 is pushed. At this time, according to the above, the abutment block 25 will be pushed upward, and the electric telescopic arm 32 will abut against the abutment block 25 to prevent the abutment block 25 from being separated from the abutment against the inner wall of the corresponding matching groove;

[0050] When the cutting drill bit 19 gets stuck and the resistance in the watertight door hole becomes larger, the transmission block 28 will continue to rotate, and the transmission block 28 will pull all the steel ropes 42, and the steel ropes 42 will pull the two matching circular plates 33, and the two matching circular plates 33 will move closer in opposite directions. At this time, the telescopic tube 36 is extended and cannot rotate, and the matching circular plates 33 will squeeze all the moving tubes 44. At this time, the pressure sensor inside the moving tube 44 will be triggered to cause the electric telescopic arm 32 to quickly retract and reset. Note that at this time, the third servo motor 11 will stop driving the third threaded rod 12 to rotate, so that the slider 14 will stop driving the cutting drill bit 19 to continue to move downward. At this time, the moving tube 44 located below the fixed tube 43 will drive the elastic telescopic rod 37 to move upward when it shrinks toward the outer wall of the fixed tube 43, and the elastic telescopic rod 37 will drive the abutment cylinder 39 when it moves. When the cylinder 39 is disengaged from the outer wall of the gas port 40, the gas will be discharged from the gas port 40 through the gas box 26 and the air release pipe 38. At this time, the elastic contraction rod 30 will instantly extend and drive the connecting rod 29 to move upward, and the connecting rod 29 drives the abutment block 25 to move upward. The abutment block 25 will engage with the inner wall of the matching groove inside the other conical block 24. At this time, the cutting drill bit 19 is rotating in the opposite direction to prevent the cutting drill bit 19 from rotating in the same direction when it is stuck and causing breakage.

[0051] When the abutment block 25 rotates in the opposite direction, the transmission round block 28 will rotate in the opposite direction. At this time, the transmission round block 28 will release the tension on all the steel ropes 42, and the pressure sensor inside the mobile tube 44 will trigger the electric telescopic arm 32 to extend quickly, so that the abutment block 25 abuts against the inner wall of the matching groove at the bottom, and the matching circular plate 33 will reset under the action of the first spring. At this time, the matching circular plate 33 will drive the elastic telescopic rod 37 to reset. When the elastic telescopic rod 37 resets, it will pull the micro-hydraulic shock absorber through the abutment cylinder 39. The characteristics of the micro-hydraulic shock absorber are fast contraction and slow reset. The elastic contraction rod 30 and the contraction gas rod 15 lose the support of the high-pressure gas and will reset and retract. The micro-hydraulic shock absorber will provide enough time for the gas to quickly return to all the corrugated sleeves 34. When the abutment cylinder 39 is reset under the action of the contraction of the elastic telescopic rod 37, the next drilling operation can be carried out.

[0052] Another situation is when the cutting drill bit 19 is severely worn. According to the above working principle, when the cutting drill bit 19 moves downward at the same speed, the cutting drill bit 19 is not worn and is very sharp. At this time, all the moving tubes 44 are in an uncontracted state. When the cutting drill bit 19 is severely worn and the staff does not discover it in time, the cutting drill bit 19 rotates at the same speed to abut the outer wall of the watertight door to drill a hole. At this time, the drilling friction resistance encountered by the cutting drill bit 19 becomes larger, and the transmission round block 28 will gradually increase the pulling force on the steel rope 42. According to the above, when the two mating circular plates 33 shrink, when the abutting cylinder 39 disengages from the abutment with the outer wall of the air port 40, the abutting block 25 will disengage from the corresponding inner wall of the mating groove and abut against the inner wall of the other mating groove. The shrinking gas rod 15 will also drive the connecting frame 17 to move upward, and the cutting drill bit 19 will disengage from the direct abutment with the watertight door.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A punching device with an anti-breakage cutter head for processing watertight doors, comprising a machine tool (1), characterized in that: The bottom end of the inner wall of the machine tool (1) is fixedly connected to a mounting base (3), the upper end of the mounting base (3) is slidably connected to a matching block (45), a driving adjustment mechanism (101) is fixedly installed between the matching block (45) and the machine tool (1), the matching block (45) is connected to a connecting frame (17) via the driving adjustment mechanism (101), an adjusting steering mechanism (201) is fixedly installed on the outer wall of the connecting frame (17), the outer wall of the connecting frame (17) is also rotatably connected to a matching frame (18) via a rotating shaft, a trigger protection mechanism (301) is fixedly installed on the bottom of the matching frame (18), and the matching frame (18) is fixedly connected to a cutting drill bit (19) via the trigger protection mechanism (301); The trigger protection mechanism (301) includes an air box (26), the air box (26) is rotatably connected to the bottom of the matching frame (18), the bottom of the air box (26) is rotatably connected to a rotating circular plate (41), the outer wall of the air box (26) is fixedly connected to a transmission round block (28) through a plurality of connecting arms (27), the interior of the transmission round block (28) is fixedly connected to a fixed tube (43), the upper and lower ends of the fixed tube (43) are slidably sleeved with a mobile tube (44) with a reset function, and each mobile tube (44) is fixedly installed with a pressure sensor; One end of each movable tube (44) away from the fixed tube (43) is fixedly connected to a matching circular plate (33), the bottom of the matching circular plate (33) located below the fixed tube (43) is fixedly connected to a telescopic circular tube (36), the bottom of the telescopic circular tube (36) is fixedly connected to the cutting drill bit (19), the rotating circular plate (41) is connected to the nearest matching circular plate (33) through a plurality of hoses, the two matching circular plates (33) are fixedly connected by a plurality of steel ropes (42), and the outer wall of each steel rope (42) is slidably inserted into the interior of the transmission round block (28); Each of the matching circular plates (33) is rotatably connected to the transmission circular block (28) by a corrugated sleeve (34); the bottom end of the inner wall of the movable tube (44) located below the fixed tube (43) is fixedly connected to an elastic telescopic rod (37); the upper end of the air box (26) is fixedly connected to an elastic contraction rod (30); the upper end of the elastic contraction rod (30) is fixedly connected to a connecting rod (29); and the upper end of the connecting rod (29) is fixedly connected to the bottom of the abutment block (25); The upper end of the air box (26) is also fixedly connected to a deflation pipe (38), the outer wall of the deflation pipe (38) is provided with a plurality of air ports (40), the inner wall of the deflation pipe (38) is slidably connected to an abutting cylinder (39), and the bottom of the abutting cylinder (39) is fixedly connected to the elastic telescopic rod (37), and a micro hydraulic shock absorber is fixedly connected between the upper end of the abutting cylinder (39) and the top end of the inner wall of the deflation pipe (38).

2. A punching device with an anti-breakage cutter head for processing watertight doors according to claim 1, characterized in that: The driving and adjusting mechanism (101) comprises a gantry (7), the gantry (7) being slidably connected to the outer wall of the mounting base (3), and a first servo motor (4) capable of driving the gantry (7) to move is fixedly mounted on the bottom of the mounting base (3).

3. The punching equipment with an anti-breakage cutter head for processing watertight doors according to claim 2, characterized in that: A second servo motor (10) capable of driving the matching block (45) to move is fixedly mounted on the outer wall of the gantry (7), a slider (14) is slidably connected to the outer wall of the matching block (45), and a third servo motor (11) capable of driving the slider (14) to move up and down is also fixedly mounted on the outer wall of the matching block (45).

4. The punching equipment with an anti-breakage cutter head for processing watertight doors according to claim 1, characterized in that: The regulating steering mechanism (201) comprises a fourth servo motor (16), the fourth servo motor (16) being fixedly mounted on the outer wall of the connecting frame (17), and the output end of the fourth servo motor (16) being fixedly connected to the first bevel gear (21).

5. The punching device with an anti-breakage cutter head for processing watertight doors according to claim 4, characterized in that: The outer wall of the connecting frame (17) is rotatably connected to two conical blocks (24), and the two conical blocks (24) are provided with matching grooves therein. The outer wall of the connecting frame (17) is rotatably connected to two second conical gears (31) that can drive the conical blocks (24) to rotate, and each of the second conical gears (31) is meshed with the first conical gear (21).

6. A punching device with an anti-breakage cutter head for processing watertight doors according to claim 5, characterized in that: An abutment block (25) is clamped on the inner wall of one of the matching grooves, and the upper end of the abutment block (25) is fixedly connected to an electric telescopic arm (32), and the upper end of the electric telescopic arm (32) abuts against the inner wall of the other matching groove.

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