A tapping device for train car coupler fitting production

Abstract

The application relates to the technical field of part manufacturing, in particular to a tapping equipment for train carriage connector accessory production, which comprises a tapping machine tool, an electric telescopic arm is fixedly arranged in the tapping machine tool, two machine tool sliding plates are slidably connected to the upper end of the tapping machine tool, the output end of the electric telescopic arm is fixedly connected with the machine tool sliding plates, a servo motor is fixedly connected to the upper end of each machine tool sliding plate, a main shaft is fixedly connected to the output end of the servo motor, a connecting circular block is fixedly connected to the end, away from the servo motor, of the main shaft, the threaded rod is made to rotate along the inner wall threads of the opening, if the thread has a broken tooth or is broken, the rotation of the threaded rod is blocked, the tooth ring drives the rotating circular plate to continue rotating and pull the steel wire rope, and the corrugated rubber sleeve is compressed; at this time, the rotation is stopped, the threaded rod is rotated in the reverse direction, the accessory is taken out, and the thread defect can be determined; the detection mode realizes automatic detection through mechanical linkage, is high in efficiency and strong in precision, is integrated with the tapping process, simplifies the process, and reduces the cost.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of part manufacturing, and in particular to a tapping equipment for train carriage connector accessory production. BACKGROUND

[0002] In the field of train carriage connector accessory production, tapping is a key process for manufacturing thread holes of car coupler connecting seats, wire posts of electrical connectors and other internally threaded components. With the increasing requirements of the rail transportation industry for the reliability and safety of accessories, the tapping quality control is becoming increasingly important. However, the current tapping equipment has obvious shortcomings in function.

[0003] The existing equipment has defects in quality detection after tapping. On the one hand, there is a lack of automated detection means for fine defects such as thread breakage, missing teeth and misaligned teeth. Manual visual inspection is inefficient and prone to missed detection and misjudgment. The go-no-go gauge can only detect basic dimensions. On the other hand, for circular accessories such as car coupler air connectors that require air tightness, the equipment does not integrate air tightness detection functions for threads and connecting pieces, and requires a separate subsequent process, resulting in a complex production process and increased costs.

[0004] In addition, the existing equipment has low automation degree in the detection link, cannot monitor the tapping quality in real time and provide feedback, cannot automatically reject unqualified products or adjust equipment parameters when problems are found, and cannot meet the high stability production quality control requirements of rail transportation accessories. It is of great significance to develop a new tapping equipment with thread defect automatic detection and air tightness synchronous detection functions to improve production quality, efficiency and reduce costs.

[0005] Chinese patent (publication number CN117697044A) discloses a tapping equipment for automobile accessory production, which comprises a rack and a tapping unit arranged on the rack. The tapping unit comprises a tapping tool, a clamping assembly for clamping a nut body with a through hole, and a driving assembly for driving the tapping tool to tap the through hole and allowing the tapping tool to pass through the through hole completely after tapping. The invention provides the above-mentioned scheme, and the tapping tool performs tapping and then passes through the nut body. In this way, one person can operate multiple tapping units, thereby improving the efficiency and quality of tapping and the yield of finished products.

[0006] According to the above-mentioned scheme, the device drives the tapping tool to tap the through hole and allows the tapping tool to pass through the through hole completely after tapping, in order to improve the efficiency and quality of tapping and increase the yield of finished products. However, the device cannot detect whether the tapped thread is broken or misaligned, and cannot detect the air tightness after connecting with the thread cap. Therefore, we propose a tapping equipment for train carriage connector accessory production. SUMMARY

[0007] The present application aims to provide a tapping equipment for train car connector fittings production to solve the problems raised in the background art.

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

[0009] A tapping equipment for train car connector fittings production, comprising a tapping machine tool, an electric telescopic arm fixedly installed inside the tapping machine tool, two machine tool sliding plates slidingly connected to the upper end of the tapping machine tool, the output end of the electric telescopic arm fixedly connected with the machine tool sliding plate, a servo motor fixedly connected to the upper end of each machine tool sliding plate, a main shaft fixedly connected to the output end of the servo motor, and a connecting circular block fixedly connected to the end of the main shaft away from the servo motor.

[0010] A tapping tap fixedly connected to the end of the connecting circular block away from the main shaft, a fixing mechanism fixedly connected to the upper end of the tapping machine tool and capable of limiting the cylindrical connector fittings, and a detection mechanism fixedly installed on the upper end of the machine tool sliding plate and capable of detecting the tapped threads inside the cylindrical connector fittings.

[0011] Further to the present application, a matching mounting bracket fixedly connected to the upper end of the machine tool sliding plate, a first gear fixedly connected between the tapping tap and the connecting circular block, a connecting rod rotatably connected to the bottom of the matching mounting bracket, and a fourth gear and a third gear fixedly connected to the two ends of the connecting rod.

[0012] Further to the present application, the fixing mechanism comprises a limiting circular block fixedly connected to the upper end of the tapping machine tool, two arc-shaped limiting plates with a reset function slidingly connected inside the limiting circular block, and two sliding openings formed in the outer wall of the limiting circular block.

[0013] Further to the present application, each arc-shaped limiting plate is rotatably connected with an abutting wheel, each abutting wheel is located inside a corresponding sliding opening, the end of the limiting circular block away from the tapping tap is fixedly connected with a first elastic telescopic arm, the end of the first elastic telescopic arm away from the limiting circular block is fixedly connected with a second abutting circular plate, and the end of the second abutting circular plate away from the first elastic telescopic arm is further fixedly connected with a first air ring.

[0014] Further to the present application, the end of the second abutting circular plate close to the limiting circular block is fixedly connected with two connecting strips, and each connecting strip is arranged inside a corresponding sliding opening.

[0015] As a further further of the scheme, the outer wall of each connecting strip is provided with a concave wall, and the outer wall of each abutting wheel corresponds to one concave wall and abuts with each other.

[0016] As a further of the scheme, the detection mechanism comprises a connecting contraction rod, the connecting contraction rod is rotationally connected at the bottom of the matching mounting frame, the end of the connecting contraction rod away from the matching mounting frame is fixedly connected with a moving disc, and the right end of the moving disc is fixedly connected with a corrugated rubber sleeve.

[0017] As a further of the scheme, the right end of the corrugated rubber sleeve is fixedly connected with a rotating disc, the moving disc and the rotating disc are further rotationally connected through a second elastic telescopic arm, the outer wall of the rotating disc is provided with a through hole, the end of the rotating disc away from the corrugated rubber sleeve is rotationally connected with a tapping disc, the inside of the tapping disc is fixedly connected with a threaded rod, the end of the tapping disc close to the rotating disc is fixedly connected with a sleeve ring, the end of the sleeve ring away from the tapping disc abuts with the outer wall of the rotating disc, and the left end of the threaded rod abuts with the outer wall of the through hole.

[0018] As a further of the scheme, the outer wall of the tapping disc is provided with a plurality of air holes, the tapping disc and the moving disc are fixedly connected through a plurality of steel wires, the outer wall of each steel wire is slidingly arranged in the inside of the rotating disc, and the end of the tapping disc away from the rotating disc is fixedly connected with a second air ring.

[0019] As a further of the scheme, the outer wall of the rotating disc is fixedly connected with a gear ring, and the gear ring is meshed with the fourth gear.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1、When the threaded rod is inserted into the tapped opening, the servo motor drives the spindle, the connecting disc and the gear set transmission, so that the threaded rod rotates along the inner wall of the opening.

[0022] 2、The application uses when the threaded rod passes through the opening smoothly, the second gas ring is in abutment with the first gas ring, and the threaded rod is turned to the limit position, if the corrugated rubber sleeve is not contracted, it indicates that the air tightness between the threads and the threaded rod is good, otherwise, if the corrugated rubber sleeve is contracted, it means that there is gas leakage, and the air tightness is not up to standard, the integrated thread integrity and air tightness detection, accurate positioning of the problem source, effectively improve the quality control level of connector fittings, reduce the risk of after-sales failure, enhance the market competitiveness of products. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view of a tapping equipment for train carriage connector fitting production.

[0024] Figure 2 It is a top view of a tapping equipment for train carriage connector fitting production.

[0025] Figure 3 It is a position structure schematic view of a matching mounting frame in a tapping equipment for train carriage connector fitting production.

[0026] Figure 4 It is a position structure schematic view of a servo motor in a tapping equipment for train carriage connector fitting production.

[0027] Figure 5 It is a structure schematic view of a fixing mechanism in a tapping equipment for train carriage connector fitting production.

[0028] Figure 6 It is a disassembly schematic view of a fixing mechanism in a tapping equipment for train carriage connector fitting production.

[0029] Figure 7 It is an internal structure schematic view of a sliding port in a tapping equipment for train carriage connector fitting production.

[0030] Figure 8 It is an internal structure schematic view of a corrugated rubber sleeve in a tapping equipment for train carriage connector fitting production.

[0031] Figure 9 It is a position structure schematic view of a tapping round plate in a tapping equipment for train carriage connector fitting production.

[0032] Figure 10 It is a structure schematic view of a detection mechanism in a tapping equipment for train carriage connector fitting production.

[0033] Figure 11 It is an internal structure schematic view of a threaded rod in a tapping equipment for train carriage connector fitting production.

[0034] Figure 12 It is a schematic diagram of a position structure for moving a round block in a tapping equipment for train car connector accessory production.

[0035] In the 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, matching mounting bracket; 10, first gear; 11, connecting round block; 12, tapping tap; 13, first abutting round plate; 14, fourth gear; 15, toothed ring; 16, corrugated rubber sleeve; 17, connecting strip; 18, limiting round block; 19, first elastic telescopic arm;

[0036] 20, arc limiting plate; 21, second abutting round plate; 22, first air ring; 23, main shaft; 24, concave wall; 25, sliding port; 26, abutting wheel; 27, first spring; 28, connecting contraction rod; 29, moving round plate; 30, abutting cylinder; 31, rotating round plate; 32, tapping round plate; 33, threaded rod; 34, air hole; 35, steel wire rope; 36, moving round block; 37, folding arm; 38, elastic rope;

[0037] 39, conical block; 40, second spring; 41, strong electromagnetic block; 42, first connecting column; 43, second connecting column; 44, through port; 45, second air ring; 46, third gear; 47, second elastic telescopic arm; 48, sleeve ring; 101, fixing mechanism; 201, detection mechanism. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] Embodiment one: please refer to Figures 1-4As shown, in the embodiment of the present application, a tapping equipment for train car connector accessory production, including tapping machine tool 1, the upper end of tapping machine tool 1 is fixedly connected with display panel 3, the outer wall of tapping machine tool 1 is rotatably connected with two cabinet doors 2 through the shaft, the two cabinet doors 2 are distributed in left-right symmetry on the outer wall of tapping machine tool 1, the inside of tapping machine tool 1 is fixedly installed with electric telescopic arm 7, the upper end of tapping machine tool 1 is also slidably connected with two machine tool sliding plates 5, the two machine tool sliding plates 5 are distributed in left-right symmetry on the upper end of tapping machine tool 1, specifically, the upper end of tapping machine tool 1 is fixedly connected with four machine tool sliding rails 4, each machine tool sliding plate 5 is slidably connected on the outer wall of the corresponding two machine tool sliding rails 4, the output end of electric telescopic arm 7 is fixedly connected with machine tool sliding plate 5 through connecting arm 6, the upper end of each machine tool sliding plate 5 is fixedly connected with servo motor 8, the output end of servo motor 8 is fixedly connected with main shaft 23, the end, away from servo motor 8, of main shaft 23 is fixedly connected with connecting round block 11, the end, away from main shaft 23, of connecting round block 11 is fixedly connected with tapping tap 12;

[0040] The upper end of tapping machine tool 1 is fixedly connected with fixing mechanism 101 that can limit cylindrical connector accessory, servo motor 8 can drive tapping tap 12 to rotate through main shaft 23 and connecting round block 11, tapping tap 12 can tap screw threads in the hole inside the fixed cylindrical connector accessory, the upper end of machine tool sliding plate 5 is fixedly installed with detection mechanism 201 that can detect the tapped screw threads inside the cylindrical connector accessory.

[0041] Embodiment two: please refer to Figure 4 As shown, the upper end of machine tool sliding plate 5 is fixedly connected with matching mounting bracket 9, first gear 10 is fixedly connected between tapping tap 12 and connecting round block 11, connecting rod is rotatably connected with the bottom of matching mounting bracket 9, fourth gear 14 and third gear 46 are fixedly connected with the two ends of connecting rod, first gear 10 and the bottom of corresponding one of third gears 46 are mutually engaged;

[0042] Please refer to Figures 4-7As shown, the fixing mechanism 101 comprises a limiting block 18 fixedly connected to the upper end of the tapping machine tool 1 by bolts, the inside of the limiting block 18 is slidably connected with two arc-shaped limiting plates 20 with a reset function, each arc-shaped limiting plate 20 is in an "arc shape", the arc-shaped limiting plate 20 can better fit against the outer wall of the cylindrical connector accessory, the outer wall of the limiting block 18 is provided with two sliding openings 25, specifically, the inside of each sliding opening 25 is slidably connected with a second connecting column 43, each second connecting column 43 is fixedly connected with a corresponding one of the arc-shaped limiting plates 20, the second connecting column 43 is fixedly connected to the inner wall of the sliding opening 25 by a first spring 27, each first spring 27 is sleeved on the outer wall of a corresponding second connecting column 43, each arc-shaped limiting plate 20 is rotatably connected with an abutting wheel 26 through the second connecting column 43, each abutting wheel 26 is located in a corresponding sliding opening 25, the end of the limiting block 18 away from the tapping tap 12 is fixedly connected with a first elastic telescopic arm 19, the end of the first elastic telescopic arm 19 away from the limiting block 18 is fixedly connected with a second abutting circular plate 21, the end of the second abutting circular plate 21 away from the first elastic telescopic arm 19 is also fixedly connected with a first air ring 22;

[0043] The first air ring 22 is made of rubber material, which has good elasticity, corrosion resistance and high temperature resistance, the end of the second abutting circular plate 21 close to the limiting block 18 is fixedly connected with two connecting strips 17, each connecting strip 17 is arranged in a corresponding sliding opening 25, and the outer wall of each connecting strip 17 is provided with a concave wall 24, the outer wall of each abutting wheel 26 is in abutment with a corresponding concave wall 24, when the connecting strip 17 moves the concave wall 24, the abutting wheel 26 rotates along the abutment between the connecting strip 17 and the outer wall of the concave wall 24, 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 fixedly connected between the two connecting strips 17, and the first abutting circular plate 13 is located between the limiting block 18 and the tapping tap 12;

[0044] Please refer to Figure 8 、 Figure 9 、 Figure 10As shown, the detection mechanism 201 includes a connecting shrink rod 28, which is rotatably connected to the bottom of the matching mounting frame 9 through a rotating shaft, and a moving round plate 29 is fixedly connected to the end of the connecting shrink rod 28 away from the matching mounting frame 9. The right end of the moving round plate 29 is fixedly connected with a corrugated rubber sleeve 16, which is made of silica gel material. The silica gel material has good corrosion resistance and high temperature resistance characteristics, and is durable. The right end of the corrugated rubber sleeve 16 is fixedly connected with a rotating round plate 31. The moving round plate 29 and the rotating round plate 31 are also rotatably connected through a second elastic expansion arm 47. The second elastic expansion arm 47 is located inside the corrugated rubber sleeve 16. A through hole 44 is formed in the outer wall of the rotating round plate 31. The through hole 44 is located in the middle of the outer wall of the rotating round plate 31. The end of the rotating round plate 31 away from the corrugated rubber sleeve 16 is rotatably connected with a tapping round plate 32 through a rotating shaft. The inside of the tapping round plate 32 is fixedly connected with a threaded rod 33. The end of the tapping round plate 32 close to the rotating round plate 31 is fixedly connected with a sleeve ring 48. The end of the sleeve ring 48 away from the tapping round plate 32 abuts against the outer wall of the rotating round plate 31.

[0045] The outer diameter of the threaded rod 33 is equal to the outer diameter of the tapping tap 12. The left end of the threaded rod 33 abuts against the outer wall of the through hole 44. The threaded rod 33 is in communication with the through hole 44. A plurality of air holes 34 are formed in the outer wall of the tapping round plate 32. The plurality of air holes 34 are distributed in a circle on the outer wall of the tapping round plate 32 with the threaded rod 33 as the center. The tapping round plate 32 and the moving round plate 29 are fixedly connected through a plurality of steel wire ropes 35. The plurality of steel wire ropes 35 are distributed in a circle between the moving round plate 29 and the tapping round plate 32. The outer wall of each steel wire rope 35 is slidably arranged in the inside of the rotating round plate 31. The outer wall of the rotating round plate 31 is fixedly connected with a gear ring 15, which is located directly below the fourth gear 14. The gear ring 15 and the fourth gear 14 are in meshing engagement. The end of the tapping round plate 32 away from the rotating round plate 31 is fixedly connected with a second air ring 45, which is matched with the first air ring 22.

[0046] Please refer to Figure 2 , Figures 8-12As shown, the inner wall of the threaded rod 33 is slidingly connected with a tapered block 39 having a reset function, the tapered block 39 is fixedly connected with the inner wall of the threaded rod 33 through a plurality of elastic ropes 38, the elastic ropes 38 are also made of rubber material and have good elasticity, the plurality of elastic ropes 38 are circumferentially distributed 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 slidingly connected with a moving circular block 36, the moving circular block 36 is rotatably connected with the tapered block 39 through a plurality of folding arms 37, the plurality of folding arms 37 are circumferentially distributed between the moving circular block 36 and the tapered block 39, the tapered block 39 is fixedly connected with the moving circular block 36 through a second spring 40, the elastic coefficient of the elastic rope 38 is greater than that of the second spring 40, at this time the second spring 40 is in a stretched and stored state, the opposite end of the tapered block 39 and the moving circular block 36 is fixedly connected with a strong electromagnetic block 41, the two strong electromagnetic blocks 41 are slidingly connected with a first connecting column 42 inside, the second spring 40 is sleeved on the outer wall of the strong electromagnetic block 41 and the first connecting column 42, one end of the moving circular plate 29 close to the rotating circular plate 31 is fixedly connected with an abutting cylinder 30, the length of the abutting cylinder 30 is greater than the total length of the rotating circular plate 31, the tapping plate 32 and the threaded rod 33, the abutting cylinder 30 is located inside the second elastic expansion arm 47, the upper end of the tapping machine tool 1 is provided with two rectangular openings, not shown in the figure, each rectangular opening is located directly below the limiting circular block 18.

[0047] Specifically, when the threaded rod 33 threadedly rotates through the tapped threaded hole inside the cylindrical connector fitting, at this time all the steel wire ropes 35 will pull the moving circular plate 29, the moving circular plate 29 will compress the corrugated rubber sleeve 16, the moving circular plate 29 will drive the abutting cylinder 30 to pass through the through hole 44 and enter the inside of the threaded rod 33, at this time the abutting cylinder 30 will abut against the outer wall of the tapered block 39, at this time the tapered block 39 will pull and store the elastic rope 38, when the tapered block 39 moves, it will drive all the components between the folding arms 37 and the moving circular block 36 to move, when all the components move out of the inside of the threaded rod 33, at this time the folding arms 37 are separated from the abutting of the inner wall of the threaded rod 33, the second spring 40 will drive the tapered block 39 and the moving circular block 36 to approach each other, when the two strong electromagnetic blocks 41 are combined, they are magnetically attracted together, all the folding arms 37 are folded, the diameter of all the folding arms 37 after folding is greater than the inner diameter of the threaded hole, when the threaded rod 33 leaves the inside of the threaded hole, it will further stretch and store the elastic rope 38, the outer wall of all the folding arms 37 will abut against the outer wall of the threaded hole, when the cylindrical connector fitting loses the limiting, at this time the elastic rope 38 will reset, the cylindrical connector fitting is pulled through the folding arms 37, when the cylindrical connector fitting is separated from the abutting of the curved limiting plate 20,

[0048] The cylindrical connector fittings fall downward due to gravity, and the elastic rope 38 is further elongated, at this time, the strong electromagnetic block 41 is powered off, the elastic rope 38 drives the conical block 39 and the moving round block 36 to reset to the inside of the threaded rod 33, due to the large pulling force of the elastic rope 38, all the folding arms 37 are folded due to the excessive pulling force, and are separated from the threaded holes in the inside of the cylindrical connector fittings, and then reset to the inside of the threaded rod 33, the cylindrical connector fittings fall into the tapping machine bed 1 through the rectangular opening, and the cylindrical connector fittings with no tapping problem are collected.

[0049] The working principle of the present application is as follows:

[0050] When the present application is used, the cylindrical connector fittings are placed between the two arc limiting plates 20, at this time, the cylindrical connector fittings are provided with complete openings on the outer wall, at this time, the electric telescopic arm 7 is started, the electric telescopic arm 7 drives the two machine tool sliding plates 5 to slide through the connecting arm 6, the machine tool sliding plates 5 drive the servo motor 8 and the main shaft 23 to move, the main shaft 23 drives 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 drives the two connecting strips 17 to move, the connecting strips 17 drive the concave wall 24 to move, at this time, the abutting wheel 26 moves along the outer wall of the concave wall 24 to the outer wall of the connecting strip 17, at this time, the abutting wheel 26 drives the two arc limiting plates 20 to gather each other, and the two arc limiting plates 20 fix and limit the cylindrical connector fittings;

[0051] At the same time, the first gear 10 drives the tapping tap 12 to abut against the inner wall of the opening provided on the outer wall of the cylindrical connector fittings, the servo motor 8 drives the connecting round block 11 and the first gear 10 to rotate through the main shaft 23, the connecting round block 11 drives the tapping tap 12 to rotate, the tapping tap 12 slowly taps the threads on the inner wall of the opening, when the threads on the inner wall of the opening are tapped, at this time, the tapping tap 12 rotates in the opposite direction to separate from the inner wall of the opening, the first abutting circular plate 13 drives the two connecting strips 17 to reset, and the abutting wheel 26 resets and abuts against the outer wall of the concave wall 24, the two arc limiting plates 20 reset, at this time, when the outer wall of the tapping circular plate 32 abuts against the second abutting circular plate 21, at this time, the second air ring 45 abuts against the first air ring 22, and the second abutting circular plate 21 abuts against the opening of the cylindrical connector fittings, the first air ring 22 communicates with the opening, and the second abutting circular plate 21 moves to move the two connecting strips 17, according to the above working principle, the two arc limiting plates 20 fix and limit the cylindrical connector fittings again;

[0052] When the threaded rod 33 is inserted into the tapped opening, at this time 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 wires 35 are taut and slide through the inside of the rotating circular plate 31, the rotating circular plate 31 will drive the moving circular plate 29, the tapping circular plate 32 and the corrugated rubber sleeve 16 to rotate through all the steel wires 35 when the rotating circular plate 31 rotates, the tapping circular plate 32 will drive the threaded rod 33 to rotate, the threaded rod 33 will rotate along the thread in the opening inner wall, when the thread in the opening has a broken tooth or the thread is broken, the threaded rod 33 will not be able to rotate, at this time the fourth gear 14 will still drive the gear ring 15 and the rotating circular plate 31 to rotate, the rotating circular plate 31 will pull all the steel wires 35, the steel wires 35 will be wound on the outer wall of the collar 48 when they are pulled and multiple steel wires 35 rotate, the steel wires 35 will drive the moving circular plate 29 to move towards the rotating circular plate 31, compressing the corrugated rubber sleeve 16, at this time stop rotating the rotating circular plate 31, and drive the threaded rod 33 to rotate in the opposite direction, when the threaded rod 33 is separated from the opening inner wall, the cylindrical connector fitting can be taken out, and it can be detected that the thread after tapping the opening inner wall has a problem;

[0053] When the thread in the opening inner wall does not have a broken tooth or other conditions, the threaded rod 33 will pass through the opening, when the second air ring 45 and the first air ring 22 abut, the second abutting circular plate 21 and the cylindrical connector fitting outer wall abut, the first air ring 22 and the second air ring 45 are connected through the air hole 34 and the opening, at this time the threaded rod 33 cannot continue to rotate, according to the above, all the steel wires 35 will have a pulling movement, it is worth noting that since the corrugated rubber sleeve 16 will push the gas inside the second air ring 45 through the air hole 34 when it contracts, since the second air ring 45 is in abutment with the gap between the opening and the threaded rod 33, when the corrugated rubber sleeve 16 does not contract, it means that the air tightness between the thread inside the opening and the threaded rod 33 is not a problem.

[0054] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A tapping device for the production of train car coupler fittings, comprising a tapping machine (1), characterized in that, The inside of the tapping machine tool (1) is fixedly provided with an electric telescopic arm (7), the upper end of the tapping machine tool (1) is also slidably connected with two machine tool sliding plates (5), the output end of the electric telescopic arm (7) is fixedly connected with the machine tool sliding plate (5), the upper end of each machine tool sliding plate (5) is fixedly connected with a servo motor (8), the output end of the servo motor (8) is fixedly connected with a main shaft (23), and the end, away from the servo motor (8), of the main shaft (23) is fixedly connected with a connecting circular block (11); The end, away from the main shaft (23), of the connecting circular block (11) is fixedly connected with a tapping tap (12), the upper end of the tapping machine tool (1) is fixedly connected with a fixing mechanism (101) capable of limiting the cylindrical connector accessory, and the upper end of the machine tool sliding plate (5) is fixedly provided with a detection mechanism (201) capable of detecting the tapped screw thread in the cylindrical connector accessory; The upper end of the machine tool sliding plate (5) is fixedly connected with a matching mounting bracket (9), the tapping tap (12) and the connecting circular block (11) are fixedly connected with a first gear (10), and the bottom of the matching mounting bracket (9) is rotatably connected with a connecting rod, and the two ends of the connecting rod are fixedly connected with a fourth gear (14) and a third gear (46); The detection mechanism (201) comprises a connecting contraction rod (28), the connecting contraction rod (28) is rotatably connected to the bottom of the matching mounting bracket (9), one end of the connecting contraction rod (28), away from the matching mounting bracket (9), is fixedly connected with a moving circular plate (29), and the right end of the moving circular plate (29) is fixedly connected with a corrugated rubber sleeve (16); The right end of the corrugated rubber sleeve (16) is fixedly connected with a rotating circular plate (31), the moving circular plate (29) and the rotating circular plate (31) are further rotatably connected through a second elastic telescopic arm (47), the outer wall of the rotating circular plate (31) is provided with a through hole (44), one end of the rotating circular plate (31), away from the corrugated rubber sleeve (16), is rotatably connected with a tapping circular plate (32), the inside of the tapping circular plate (32) is fixedly connected with a threaded rod (33), one end of the tapping circular plate (32), close to the rotating circular plate (31), is fixedly connected with a sleeve ring (48), the end of the sleeve ring (48), away from the tapping circular plate (32), is in abutment with the outer wall of the rotating circular plate (31), and the left end of the threaded rod (33) is in abutment with the outer wall of the through hole (44); A plurality of air holes (34) are formed in the outer wall of the tapping circular plate (32), the tapping circular plate (32) and the moving circular plate (29) are fixedly connected through a plurality of steel wires (35), the outer wall of each steel wire (35) is slidably arranged in the inside of the rotating circular plate (31), and one end of the tapping circular plate (32), away from the rotating circular plate (31), is fixedly connected with a second air ring (45); The outer wall of the rotating circular plate (31) is fixedly connected with a gear ring (15), and the gear ring (15) is in meshing connection with the fourth gear (14).

2. A tapping device for the production of train car coupler fittings according to claim 1, characterized in that The fixed mechanism (101) comprises a limiting circular block (18) fixedly connected to the upper end of the tapping machine tool (1), two arc limiting plates (20) with a reset function are slidably connected to the inside of the limiting circular block (18), and two sliding openings (25) are formed in the outer wall of the limiting circular block (18).

3. A tapping device for the production of train car coupler fittings according to claim 2, characterized in that Each of the arc limiting plates (20) is rotatably connected with an abutting wheel (26), each of the abutting wheels (26) is located in the corresponding sliding opening (25), one end of the limiting circular block (18) away from the tapping tap (12) is fixedly connected with a first elastic telescopic arm (19), one end of the first elastic telescopic arm (19) away from the limiting circular block (18) is fixedly connected with a second abutting circular plate (21), and one end of the second abutting circular plate (21) away from the first elastic telescopic arm (19) is further fixedly connected with a first air ring (22).

4. A tapping device for the production of train car coupler fittings according to claim 3, characterized in that Two connecting strips (17) are fixedly connected to one end of the second abutting circular plate (21) close to the limiting circular block (18), and each of the connecting strips (17) penetrates the corresponding sliding opening (25).

5. A tapping apparatus for the production of train car coupler fittings according to claim 4, characterized in that The outer wall of each of the connecting strips (17) is provided with a concave wall (24), the outer wall of each of the abutting wheels (26) is abutted with the outer wall of the corresponding concave wall (24), and the first abutting circular plate (13) is further fixedly connected between the two connecting strips (17).

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