Tapping equipment for train carriage connector accessory production

Abstract

The invention relates to the technical field of part manufacturing, in particular to tapping equipment for train carriage connector accessory production, which comprises a tapping machine tool, an electric telescopic arm is fixedly mounted in the tapping machine tool, two machine tool sliding plates are slidably connected to the upper end of the tapping machine tool, and the output end of the electric telescopic arm is fixedly connected with the machine tool sliding plates. The upper end of each machine tool sliding plate is fixedly connected with a servo motor, the output end of each servo motor is fixedly connected with a main shaft, and the end, away from the corresponding servo motor, of each main shaft is fixedly connected with a connecting round block, so that the threaded rod rotates along threads on the inner wall of the opening. The gear ring drives the rotating circular plate to continuously rotate, pulls the steel wire rope and compresses the corrugated rubber sleeve, at the moment, rotation is stopped, the threaded rod is reversely screwed out, the accessory is taken out, and then the thread defect can be judged, the detection mode achieves automatic detection through mechanical linkage, efficiency is high, precision is high, the detection mode is integrated with the tapping process, the process is simplified, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of parts manufacturing, in particular to a tapping device used for the production of train carriage connector accessories. Background Art

[0002] In the production of train car connector accessories, tapping is a key process for manufacturing internal threaded components such as threaded holes in coupler connectors and electrical connector terminals. As the rail transit industry's requirements for accessory reliability and safety increase, tapping quality control becomes increasingly important. However, most current tapping equipment has significant functional deficiencies. Existing equipment has shortcomings in post-tapping quality inspection. First, it lacks automated detection methods for subtle defects such as broken, missing, and misaligned threads. Manual visual inspection is inefficient and prone to missed detections and misjudgments. Go / no-go gauges can only detect basic dimensions. Second, for circular accessories requiring airtightness, such as couplers and air connectors, the equipment lacks integrated airtightness testing for threads and connectors, requiring a separate subsequent process. This complicates the production process and increases costs. In addition, the existing equipment has a low degree of automation in the detection process, and is unable to monitor the tapping quality and provide feedback in real time. When problems are found, it cannot automatically eliminate unqualified products or adjust equipment parameters. It is difficult to meet the high-stability production quality control needs of rail transit accessories. The development of new tapping equipment with both automatic detection of thread defects and simultaneous detection of air tightness is of great significance to improving production quality, efficiency and reducing costs.

[0003] A Chinese patent (publication number CN117697044A) discloses a tapping device for the production of automotive parts, including a frame and a tapping unit arranged on the frame. The tapping unit includes a tapping tool, a clamping component for clamping a nut body with a through hole, and a driving component for driving the tapping tool to tap the through hole and ensuring that the tapping tool can pass completely through the through hole after the tapping process. The above-mentioned solution provided by the invention is that the tapping tool for tapping does not withdraw in the opposite direction after the tapping process, but passes through the nut body. In this way, one person can operate multiple tapping units, thereby improving the efficiency of the tapping process and improving the quality and yield of the tapping process.

[0004] According to the above scheme, when the above device is in use, the driving component drives the tapping tool to tap the through hole and ensures that the tapping tool can pass completely through the through hole after tapping. This is to improve the efficiency of tapping and improve the quality and yield of tapping. At that time, it was impossible to detect whether the threads after tapping were broken or misaligned and to detect the air tightness after connection with the threaded cap. It has limitations. We proposed a tapping device for the production of train car connector accessories. Summary of the Invention

[0005] The object of the present invention is to provide a tapping device for the production of railway carriage connector accessories to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A tapping device for producing train carriage connector accessories includes a tapping machine, an electric telescopic arm fixedly installed inside the tapping machine, and two machine tool slides slidably connected to the upper end of the tapping machine. The output end of the electric telescopic arm is fixedly connected to the machine tool slide, and the upper end of each of the machine tool slides is fixedly connected to a servo motor. The output end of the servo motor is fixedly connected to a spindle, and the end of the spindle away from the servo motor is fixedly connected to a connecting round block. The end of the connecting block away from the main shaft is fixedly connected to a tapping tap, the upper end of the tapping machine is fixedly connected to a fixing mechanism that can limit the cylindrical connector accessories, and the upper end of the machine tool slide is fixedly installed with a detection mechanism that can detect the tapped threads inside the cylindrical connector accessories.

[0007] As a further embodiment of this solution, the upper end of the machine tool slide is fixedly connected to a matching mounting bracket, a first gear is fixedly connected between the tapping tap and the connecting round block, the bottom of the matching mounting bracket is rotatably connected to a connecting rod, and both ends of the connecting rod are fixedly connected to a fourth gear and a third gear.

[0008] As a further feature of this solution, the fixing mechanism includes a limiting circular block, which is fixedly connected to the upper end of the tapping machine. The internal sliding connection of the limiting circular block is provided with two curved arc limiting plates with a reset function, and the outer wall of the limiting circular block is provided with two sliding openings.

[0009] As a further feature of this solution, each of the arc limit plates is rotatably connected to an abutment wheel, and each of the abutment wheels is located inside a corresponding sliding mouth. The end of the limit circle away from the tapping tap is fixedly connected to a first elastic telescopic arm, the end of the first elastic telescopic arm away from the limit circle is fixedly connected to a second abutment circular plate, and the end of the second abutment circular plate away from the first elastic telescopic arm is also fixedly connected to a first air ring.

[0010] As a further feature of this solution, two connecting bars are fixedly connected to one end of the second abutting circular plate close to the limiting circular block, and each of the connecting bars is passed through the interior of a corresponding sliding opening.

[0011] As a further feature of this solution, the outer wall of each connecting bar is provided with a concave wall, the outer wall of each abutting wheel corresponds to a concave wall and the outer walls thereof abut against each other, and a first abutting circular plate is fixedly connected between the two connecting bars.

[0012] As a further feature of this solution, the detection mechanism includes a connecting and retracting rod, which is rotatably connected to the bottom of the cooperating mounting frame. The end of the connecting and retracting rod away from the cooperating mounting frame is fixedly connected to a movable circular plate, and the right end of the movable circular plate is fixedly connected to a corrugated rubber sleeve.

[0013] As a further feature of this solution, the right end of the corrugated rubber sleeve is fixedly connected to a rotating circular plate, and the movable circular plate and the rotating circular plate are also rotatably connected by a second elastic telescopic arm. A through-hole is provided on the outer wall of the rotating circular plate, and the end of the rotating circular plate away from the corrugated rubber sleeve is rotatably connected to a tapping circular plate, and the inside of the tapping circular plate is fixedly connected to a threaded rod, and the end of the tapping circular plate close to the rotating circular plate is fixedly connected to a ring, and the end of the ring away from the tapping circular plate abuts against the outer wall of the rotating circular plate, and the left end of the threaded rod abuts against the outer wall of the through-hole.

[0014] As a further feature of this solution, the outer wall of the tapping circular plate is provided with a plurality of air holes, and the tapping circular plate and the movable circular plate are fixedly connected by a plurality of steel ropes, and the outer wall of each steel rope is slidably passed through the interior of the rotating circular plate, and the end of the tapping circular plate away from the rotating circular plate is fixedly connected to a second air ring.

[0015] As a further feature of this solution, a gear ring is fixedly connected to the outer wall of the rotating circular plate, and the gear ring is meshed with the fourth gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, after the threaded rod is inserted into the tapped opening, the servo motor drives the main shaft, the connecting round block and the gear set to rotate the threaded rod along the inner wall of the opening. If there are broken teeth or fractures in the thread, the rotation of the threaded rod is blocked, and the gear ring drives the rotating circular plate to continue rotating and pull the wire rope, compressing the corrugated rubber sleeve. At this time, the rotation is stopped and the threaded rod is rotated out in the opposite direction to remove the accessories to determine the thread defects. This detection method realizes automated detection through mechanical linkage, with high efficiency and high accuracy. It is integrated with the tapping process, simplifying the process, reducing costs, and reducing process conversion errors and product damage risks. 2. When the present invention is used, when the threaded rod passes through the opening smoothly, the second air ring is connected to the first air ring, and the threaded rod is rotated to the extreme position, if the corrugated rubber sleeve does not shrink, it indicates that the air tightness between the thread and the threaded rod is good. On the contrary, if the corrugated rubber sleeve shrinks, it means that there is gas leakage and the air tightness does not meet the standard. The integrated thread integrity and air tightness detection can accurately locate the root cause of the problem, effectively improve the quality control level of connector accessories, reduce the risk of after-sales failures, and enhance the market competitiveness of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a tapping device used in the production of railway carriage connector accessories.

[0018] Figure 2 A top view of a tapping device used in the production of train car connector accessories.

[0019] Figure 3 The figure is a schematic diagram of the position structure of the mating mounting frame in a tapping device used in the production of train carriage connector accessories.

[0020] Figure 4 This is a schematic diagram of the position structure of a servo motor in a tapping device used in the production of train car connector accessories.

[0021] Figure 5 The figure is a schematic diagram of the structure of the fixing mechanism in a tapping device used in the production of railway carriage connector accessories.

[0022] Figure 6 This is a schematic diagram of the disassembly of the fixing mechanism in a tapping device used in the production of train car connector accessories.

[0023] Figure 7 This is a schematic diagram of the internal structure of a sliding mouth in a tapping device used in the production of train car connector accessories.

[0024] Figure 8 This is a schematic diagram of the internal structure of a corrugated rubber sleeve in a tapping device used in the production of train car connector accessories.

[0025] Figure 9 This is a schematic diagram of the position structure of the tapping circular plate in a tapping device used in the production of train car connector accessories.

[0026] Figure 10 The figure is a schematic diagram of the structure of the detection mechanism in a tapping device used in the production of railway carriage connector accessories.

[0027] Figure 11 Schematic diagram of the internal structure of a threaded rod in a tapping device used in the production of train car connector accessories.

[0028] Figure 12 This is a schematic diagram of the position structure of the movable round block in a tapping device used in the production of train carriage connector accessories.

[0029] Figure: 1. Tapping machine; 2. Cabinet door; 3. Display panel; 4. Machine slide rail; 5. Machine slide plate; 6. Connecting arm; 7. Electric telescopic arm; 8. Servo motor; 9. Mounting bracket; 10. First gear; 11. Connecting block; 12. Tapping tap; 13. First abutting circular plate; 14. Fourth gear; 15. Gear ring; 16. Corrugated rubber sleeve; 17. Connecting strip; 18. Limiting block; 19. First elastic telescopic arm. 20. Bending arc limit plate; 21. Second abutting circular plate; 22. First air ring; 23. Main shaft; 24. Concave wall; 25. Sliding mouth; 26. Abutting wheel; 27. First spring; 28. Connecting retracting rod; 29. ​​Moving circular plate; 30. Abutting cylinder; 31. Rotating circular plate; 32. Tapping circular plate; 33. Threaded rod; 34. Air hole; 35. Steel wire rope; 36. Moving circular block; 37. Folding arm; 38. Elastic rope; 39. Conical block; 40. Second spring; 41. Strong electromagnetic block; 42. First connecting column; 43. Second connecting column; 44. Through-hole; 45. Second air ring; 46. Third gear; 47. Second elastic telescopic arm; 48. Ring; 101. Fixing mechanism; 201. Detection mechanism. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1: Please refer to Figures 1 to 4 As shown, in an embodiment of the present invention, a tapping device for producing railway carriage connector accessories includes a tapping machine 1, a display panel 3 is fixedly connected to the upper end of the tapping machine 1, the outer wall of the tapping machine 1 is rotatably connected to two cabinet doors 2 through a rotating shaft, and the two cabinet doors 2 are symmetrically distributed on the outer wall of the tapping machine 1, an electric telescopic arm 7 is fixedly installed inside the tapping machine 1, and two machine tool slides 5 are slidably connected to the upper end of the tapping machine 1, and the two machine tool slides 5 are symmetrically distributed on the upper end of the tapping machine 1. The upper end of the tapping machine 1 is fixedly connected to four machine slide rails 4, and each machine slide plate 5 is slidably connected to the outer walls of the corresponding two machine slide rails 4. The output end of the electric telescopic arm 7 is fixedly connected to the machine slide plate 5 through the connecting arm 6. The upper end of each machine slide plate 5 is fixedly connected to a servo motor 8, and the output end of the servo motor 8 is fixedly connected to the main shaft 23. The end of the main shaft 23 away from the servo motor 8 is fixedly connected to a connecting round block 11, and the end of the connecting round block 11 away from the main shaft 23 is fixedly connected to a tapping tap 12; The upper end of the tapping machine 1 is fixedly connected to a fixing mechanism 101 that can limit the cylindrical connector accessories. The servo motor 8 can drive the tapping tap 12 to rotate through the main shaft 23 and the connecting block 11. The tapping tap 12 will tap the hole inside the fixed cylindrical connector accessories. The upper end of the machine tool slide 5 is fixedly installed with a detection mechanism 201 that can detect the tapped threads inside the cylindrical connector accessories.

[0032] Example 2: Please refer to Figure 4 As shown, the upper end of the machine tool slide 5 is fixedly connected to the matching mounting frame 9, the first gear 10 is fixedly connected between the tapping tap 12 and the connecting round block 11, the bottom of the matching mounting frame 9 is rotatably connected to a connecting rod, and both ends of the connecting rod are fixedly connected to the fourth gear 14 and the third gear 46, and the first gear 10 and the bottom of the corresponding third gear 46 are meshed with each other; See also Figures 4 to 7 As shown, the fixing mechanism 101 includes a limiting circular block 18, which is fixedly connected to the upper end of the tapping machine 1 by bolts. The internal sliding connection of the limiting circular block 18 is provided with two arc limiting plates 20 with a reset function. Each arc limiting plate 20 is in an "arc shape". The arc-shaped arc limiting plate 20 can better fit the outer wall of the cylindrical connector accessory. The outer wall of the limiting circular block 18 is provided with two sliding openings 25. Specifically, the interior of each sliding opening 25 is slidably connected to a second connecting column 43. Each second connecting column 43 is fixedly connected to a corresponding arc limiting plate 20. The second connecting column 43 is fixedly connected to a corresponding arc limiting plate 20. The column 43 is fixedly connected to the inner wall of the sliding opening 25 via a first spring 27. Each first spring 27 is sleeved on the outer wall of a corresponding second connecting column 43. Each arc limiting plate 20 is rotatably connected to an abutment wheel 26 via the second connecting column 43. Each abutment wheel 26 is located inside a corresponding sliding opening 25. The end of the limiting circular block 18 away from the tapping tap 12 is fixedly connected to the first elastic telescopic arm 19. The end of the first elastic telescopic arm 19 away from the limiting circular block 18 is fixedly connected to the second abutment circular plate 21. The end of the second abutment circular plate 21 away from the first elastic telescopic arm 19 is also fixedly connected to the first air ring 22. The first air ring 22 is made of rubber material, which has good elasticity and good corrosion resistance and high temperature resistance. The second abutting circular plate 21 is fixedly connected to one end near the limiting circular block 18 with two connecting strips 17, each connecting strip 17 is passed through the inside of a corresponding sliding port 25, and the outer wall of each connecting strip 17 is provided with a concave wall 24, and the outer wall of each abutting wheel 26 corresponds to the outer wall of a concave wall 24 and abuts against each other. When the connecting strip 17 drives the concave wall 24 to move, the abutting wheel 26 will rotate along the connecting strip 17 and the outer wall of the concave wall 24, and the abutting wheel 26 can reduce the friction between the second connecting column 43 and the connecting strip 17 and the outer wall of the concave wall 24. The first abutting circular plate 13 is also fixedly connected between the two connecting strips 17, and the first abutting circular plate 13 is located between the limiting circular block 18 and the tapping tap 12; See also Figure 8 、 Figure 9 、 Figure 10As shown, the detection mechanism 201 includes a connecting retractable rod 28, which is rotatably connected to the bottom of the matching mounting frame 9 through a rotating shaft. The end of the connecting retractable rod 28 away from the matching mounting frame 9 is fixedly connected to a movable circular plate 29, and the right end of the movable circular plate 29 is fixedly connected to a corrugated rubber sleeve 16. The corrugated rubber sleeve 16 is made of silicone material. The silicone material has good corrosion resistance and high temperature resistance and is durable. The right end of the corrugated rubber sleeve 16 is fixedly connected to a rotating circular plate 31. There is also a shaft between the movable circular plate 29 and the rotating circular plate 31. The second elastic telescopic arm 47 is rotatably connected and is located inside the corrugated rubber sleeve 16. A through-hole 44 is formed on the outer wall of the rotating circular plate 31 and is located in the center of the outer wall of the rotating circular plate 31. The end of the rotating circular plate 31 away from the corrugated rubber sleeve 16 is rotatably connected to the tapping circular plate 32 via a rotating shaft. The tapping circular plate 32 is fixedly connected to a threaded rod 33 inside. The end of the tapping circular plate 32 close to the rotating circular plate 31 is fixedly connected to a collar 48. The end of the collar 48 away from the tapping circular plate 32 abuts against the outer wall of the rotating circular plate 31. The outer diameter of the threaded rod 33 is equal to the outer diameter of the tapping tap 12, and the left end of the threaded rod 33 abuts against the outer wall of the through-hole 44, and the threaded rod 33 is communicated with the through-hole 44. The outer wall of the tapping circular plate 32 is provided with a plurality of air holes 34, and the plurality of air holes 34 are distributed circumferentially on the outer wall of the tapping circular plate 32 with the threaded rod 33 as the center. The tapping circular plate 32 and the movable circular plate 29 are fixedly connected by a plurality of steel wire ropes 35, and the plurality of steel wire ropes 35 are distributed circumferentially between the movable circular plate 29 and the tapping circular plate 32. The outer wall of each steel wire rope 35 is slidably passed through the interior of the rotating circular plate 31, and the outer wall of the rotating circular plate 31 is fixedly connected to the gear ring 15, which is located directly below the fourth gear 14, and the gear ring 15 and the fourth gear 14 mesh with each other. The end of the tapping circular plate 32 away from the rotating circular plate 31 is fixedly connected to the second air ring 45, and the second air ring 45 is adapted to the first air ring 22; See also Figure 2 、 Figures 8 to 12As shown, the inner wall of the threaded rod 33 is slidably connected with a tapered block 39 with a reset function, and the tapered block 39 is fixedly connected to the inner wall of the threaded rod 33 by multiple elastic ropes 38. The elastic ropes 38 are also made of rubber and have good elasticity. The multiple elastic ropes 38 are distributed circumferentially between the threaded rod 33 and the tapered block 39. The tapered block 39 is conical. The inner wall of the threaded rod 33 is also slidably connected with a moving circular block 36. The moving circular block 36 and the tapered block 39 are rotatably connected by multiple folding arms 37. The multiple folding arms 37 are distributed circumferentially between the moving circular block 36 and the tapered block 39. The tapered block 39 and the moving circular block 36 are fixedly connected by a second spring 40. The elastic coefficient of the elastic rope 38 is greater than that of the second spring 40. The elastic coefficient of the second spring 40 at this time is in a state of being stretched and storing force. The opposite end of the conical block 39 and the moving circular block 36 are fixedly connected to a strong electromagnetic block 41. The first connecting column 42 is slidably connected between the two strong electromagnetic blocks 41. The second spring 40 is sleeved on the outer wall of the strong electromagnetic block 41 and the first connecting column 42. The end of the moving circular plate 29 close to the rotating circular plate 31 is fixedly connected to the abutment cylinder 30. The length of the abutment cylinder 30 is greater than the total length of the rotating circular plate 31, the tapping circular plate 32 and the threaded rod 33. The abutment cylinder 30 is located inside the second elastic telescopic arm 47. Two rectangular openings are opened at the upper end of the tapping machine 1, which are not shown in the figure. Each rectangular opening is located directly below the limit circular block 18.

[0033] Specifically, when the threaded rod 33 is threadedly rotated through the threaded hole tapped inside the cylindrical connector accessory, all the steel wire ropes 35 will pull the movable circular plate 29, and the movable circular plate 29 will compress the corrugated rubber sleeve 16. The movable circular plate 29 will drive the abutting cylinder 30 to pass through the through-hole 44 and enter the interior of the threaded rod 33. At this time, the abutting cylinder 30 will abut the outer wall of the conical block 39. At this time, the conical block 39 will pull the elastic rope 38 to store force. When the conical block 39 moves, it will drive all the components between the folding arms 37 and the movable circular block 36 to move. When all the components move out of the threaded rod 33, the folding arm 37 is now detached. When the inner wall of the threaded rod 33 is abutted, the second spring 40 will drive the conical block 39 and the movable circular block 36 to move closer to each other. When the two strong electromagnetic blocks 41 are merged, they are attracted together by electromagnetic force, and all the folding arms 37 are folded. The diameter of all the folding arms 37 after folding is larger than the inner diameter of the threaded hole. When the threaded rod 33 leaves the threaded hole, it will further stretch the elastic rope 38 and store force. The outer walls of all the folding arms 37 will abut against the outer walls of the threaded hole. When the cylindrical connector accessory loses its limit, the elastic rope 38 will reset and pull the cylindrical connector accessory through the folding arm 37. When the cylindrical connector accessory is separated from the abutment of the arc limit plate 20, The cylindrical connector accessories fall downward due to gravity, and the elastic rope 38 will be further stretched. At this time, the strong electromagnetic block 41 is powered off, and the elastic rope 38 drives the conical block 39 and the movable round block 36 to reset to the inside of the threaded rod 33. Due to the large tension of the elastic rope 38, all the folding arms 37 will fold due to the excessive tension, disengage from the threaded hole inside the cylindrical connector accessories, and then enter the threaded rod 33 to reset. The cylindrical connector accessories will fall into the tapping machine 1 through the rectangular opening, completing the collection of the cylindrical connector accessories that have no tapping problems.

[0034] The working principle of the present invention is: When the present invention is used, the cylindrical connector accessory is placed between the two arc limiting plates 20. At this time, the outer wall of the cylindrical connector accessory is provided with a complete opening. At this time, the electric telescopic arm 7 is started, and the electric telescopic arm 7 will drive the two machine tool slides 5 to slide through the connecting arm 6. The machine tool slide 5 will drive the servo motor 8 and the main shaft 23 to move, and the main shaft 23 will drive the connecting round block 11 and the first gear 10 to move. When the outer wall of the first gear 10 abuts against the outer wall of the first abutting circular plate 13, the first abutting circular plate 13 will drive the two connecting bars 17 to move, and the connecting bar 17 will drive the concave wall 24 to move. At this time, the abutting wheel 26 will move along the outer wall of the concave wall 24 toward the outer wall of the connecting bar 17. At this time, the abutting wheel 26 will drive the two arc limiting plates 20 to gather together, and the two arc limiting plates 20 will fix and limit the cylindrical connector accessory. At the same time, the first gear 10 drives the tapping tap 12 to abut against the inner wall of the opening opened on the outer wall of the cylindrical connector accessory, and the servo motor 8 drives the connecting block 11 and the first gear 10 to rotate through the main shaft 23. The connecting block 11 drives the tapping tap 12 to rotate, and the tapping tap 12 slowly taps the inner wall of the opening. When the thread of the inner wall of the opening is tapped, the tapping tap 12 rotates in the opposite direction to disengage from the inner wall of the opening, and the first abutting circular plate 13 drives the two connecting bars 17 to reset, and the abutting wheel 2 6 will be reset and abut against the outer wall of the concave wall 24, and the two arc limiting plates 20 will be reset. At this time, when the outer wall of the tapping circular plate 32 abuts against the second abutting circular plate 21, the second air ring 45 and the first air ring 22 abut against each other, and the second abutting circular plate 21 abuts against the opening of the cylindrical connector accessory. The first air ring 22 is connected to the opening. When the second abutting circular plate 21 moves, the two connecting strips 17 move. According to the above work, it can be seen that the two arc limiting plates 20 will fix and limit the cylindrical connector accessory again; When the threaded rod 33 is inserted into the tapped opening, the servo motor 8 will drive the main shaft 23 and the connecting block 11 to rotate, the connecting block 11 will drive the first gear 10 to rotate, the first gear 10 will drive the third gear 46 and the fourth gear 14 to rotate, the fourth gear 14 will drive the gear ring 15 to rotate, the gear ring 15 will drive the rotating circular plate 31 to rotate, when the rotating circular plate 31 rotates, since all the steel wire ropes 35 are tautly slidably arranged inside the rotating circular plate 31, when the rotating circular plate 31 rotates, it will drive the moving circular plate 29, the tapping circular plate 32 and the corrugated rubber sleeve 16 to rotate through all the steel wire ropes 35, and when the tapping circular plate 32 rotates, it will drive the threaded rod 33 to rotate, and the threaded rod 33 will rotate along the opening The thread in the inner wall of the opening rotates. When a broken tooth or a fracture occurs in the thread in the opening, the threaded rod 33 will be unable to rotate. At this time, the fourth gear 14 still drives the gear ring 15 and the rotating circular plate 31 to rotate. The rotating circular plate 31 will pull all the wire ropes 35. When the wire ropes 35 are pulled and multiple wire ropes 35 rotate, they will be entangled on the outer wall of the ring 48. The wire ropes 35 will drive the movable circular plate 29 to move in the direction of the rotating circular plate 31, compressing the corrugated rubber sleeve 16. At this time, the rotation of the rotating circular plate 31 is stopped, and the threaded rod 33 is driven to rotate in the opposite direction. When the threaded rod 33 is separated from the inner wall of the opening, the cylindrical connector accessory can be taken out, and the problem of the thread after tapping the inner wall of the opening can be detected. When there is no broken tooth or other problems on the thread on the inner wall of the opening, the threaded rod 33 will pass through the opening. When the second air ring 45 abuts against the first air ring 22, the second abutting circular plate 21 abuts against the outer wall of the cylindrical connector accessory, the first air ring 22 and the second air ring 45 are connected to the opening through the air hole 34. At this time, when the threaded rod 33 cannot continue to rotate, according to the above, all the steel wire ropes 35 will have a pulling movement. It is worth noting that due to the contraction of the corrugated rubber sleeve 16, the gas will be pushed into the inside of the second air ring 45 through the air hole 34. Since the second air ring 45 abuts against the gap between the opening and the threaded rod 33, when the corrugated rubber sleeve 16 does not shrink, it means that there is no problem with the air tightness between the thread inside the opening and the threaded rod 33.

[0035] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A tapping device for producing railway carriage connector accessories, comprising a tapping machine (1), characterized in that: An electric telescopic arm (7) is fixedly installed inside the tapping machine (1), and the upper end of the tapping machine (1) is also slidably connected to two machine tool slides (5), the output end of the electric telescopic arm (7) is fixedly connected to the machine tool slide (5), and the upper end of each of the machine tool slides (5) is fixedly connected to a servo motor (8), the output end of the servo motor (8) is fixedly connected to a main shaft (23), and the end of the main shaft (23) away from the servo motor (8) is fixedly connected to a connecting round block (11); The end of the connecting block (11) away from the main shaft (23) is fixedly connected to a tapping tap (12), the upper end of the tapping machine (1) is fixedly connected to a fixing mechanism (101) capable of limiting the position of the cylindrical connector accessory, and the upper end of the machine tool slide (5) is fixedly mounted with a detection mechanism (201) capable of detecting the tapped threads inside the cylindrical connector accessory.

2. The tapping equipment for producing railway carriage connector accessories according to claim 1, characterized in that: The upper end of the machine tool slide (5) is fixedly connected to a matching mounting frame (9), a first gear (10) is fixedly connected between the tapping tap (12) and the connecting round block (11), and a connecting rod is rotatably connected to the bottom of the matching mounting frame (9), and both ends of the connecting rod are fixedly connected to a fourth gear (14) and a third gear (46).

3. The tapping equipment for producing railway carriage connector accessories according to claim 1, characterized in that: The fixing mechanism (101) includes a limiting circular block (18), the limiting circular block (18) is fixedly connected to the upper end of the tapping machine (1), the interior of the limiting circular block (18) is slidably connected to two curved limiting plates (20) with a reset function, and the outer wall of the limiting circular block (18) is provided with two sliding openings (25).

4. The tapping equipment for producing railway carriage connector accessories according to claim 3, characterized in that: Each of the arc limiting plates (20) is rotatably connected to an abutment wheel (26), and each of the abutment wheels (26) is located inside a corresponding sliding opening (25). One end of the limiting circular block (18) away from the tapping tap (12) is fixedly connected to a first elastic telescopic arm (19), and one end of the first elastic telescopic arm (19) away from the limiting circular block (18) is fixedly connected to a second abutment circular plate (21), and one end of the second abutment circular plate (21) away from the first elastic telescopic arm (19) is also fixedly connected to a first air ring (22).

5. The tapping equipment for producing railway carriage connector accessories according to claim 4, characterized in that: Two connecting bars (17) are fixedly connected to one end of the second abutting circular plate (21) close to the limiting circular block (18), and each connecting bar (17) is inserted into a corresponding sliding opening (25).

6. The tapping equipment for producing railway carriage connector accessories according to claim 5, characterized in that: The outer wall of each connecting strip (17) is provided with a concave wall (24), and the outer wall of each abutting wheel (26) abuts against the outer wall of a corresponding concave wall (24), and a first abutting circular plate (13) is fixedly connected between the two connecting strips (17).

7. The tapping equipment for producing railway carriage connector accessories according to claim 1, characterized in that: The detection mechanism (201) comprises a connecting and retracting rod (28), the connecting and retracting rod (28) being rotatably connected to the bottom of the matching mounting frame (9), the end of the connecting and retracting rod (28) away from the matching mounting frame (9) being fixedly connected to a movable circular plate (29), and the right end of the movable circular plate (29) being fixedly connected to a corrugated rubber sleeve (16).

8. The tapping equipment for producing railway carriage connector accessories according to claim 7, characterized in that: The right end of the corrugated rubber sleeve (16) is fixedly connected to a rotating circular plate (31), and the movable circular plate (29) and the rotating circular plate (31) are also rotatably connected via a second elastic telescopic arm (47). A through-hole (44) is provided on the outer wall of the rotating circular plate (31). The end of the rotating circular plate (31) away from the corrugated rubber sleeve (16) is rotatably connected to a tapping circular plate (32). The inside of the tapping circular plate (32) is fixedly connected to a threaded rod (33). The end of the tapping circular plate (32) close to the rotating circular plate (31) is fixedly connected to a collar (48). The end of the collar (48) away from the tapping circular plate (32) abuts against the outer wall of the rotating circular plate (31), and the left end of the threaded rod (33) abuts against the outer wall of the through-hole (44).

9. The tapping equipment for producing railway carriage connector accessories according to claim 8, characterized in that: The outer wall of the tapping circular plate (32) is provided with a plurality of air holes (34), and the tapping circular plate (32) is fixedly connected to the movable circular plate (29) via a plurality of steel wire ropes (35). The outer wall of each steel wire rope (35) is slidably penetrated into the interior of the rotating circular plate (31), and the end of the tapping circular plate (32) away from the rotating circular plate (31) is fixedly connected to a second air ring (45).

10. The tapping equipment for producing railway carriage connector accessories according to claim 8, characterized in that: A gear ring (15) is fixedly connected to the outer wall of the rotating circular plate (31), and the gear ring (15) and the fourth gear (14) are meshed with each other.

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