Grinding equipment for inner and outer surfaces of train hook head

Abstract

The invention discloses train hook head inner and outer surface grinding equipment which comprises a grinding table, a supporting rotating shaft is rotationally connected to the grinding table, rotating mounting discs are rotationally connected to the positions, located on the two sides of the supporting rotating shaft, of the grinding table correspondingly, a coupler knuckle body is placed on the rotating mounting discs through limiting assemblies, and position adjusting mechanisms are arranged on the two sides of the supporting rotating shaft correspondingly. A vertical grinding assembly and a peripheral grinding assembly are arranged on the two position adjusting mechanisms, the peripheral grinding assembly comprises a first fixing plate, a peripheral grinding roller is rotationally connected to the first fixing plate, a sliding block is arranged on the first fixing plate in a sliding mode, a fixed grinding roller is rotationally connected to the sliding block, and the vertical grinding assembly comprises a vertical grinding sliding rail; the vertical grinding assembly and the peripheral grinding assembly are matched with each other to be matched with a complex curve of the edge of the coupler knuckle, the problem that a traditional grinding wheel is difficult to touch a dead angle is solved, the vertical face and the end face of the coupler knuckle can be precisely processed, and full-coverage grinding in a three-dimensional space is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to train hook head repair technology field, especially to a kind of train hook head inner and outer surface polishing equipment. BACKGROUND

[0002] Train hook head is the key component of connecting railway vehicles, mainly used to transmit traction, braking force and buffer impact force between vehicles. Its core function is to ensure that the train remains stable connection during operation, while allowing the vehicle to rotate flexibly when bending or sloping.

[0003] Taking Jan type car coupler as an example, its core feature is automatic coupling function, when two carriages are close, the tongue is automatically opened and locked by the inclined surface extrusion, without manual intervention, greatly improving the efficiency and safety of operation. The coupler is composed of a hook head, a hook body and a hook tail, and the locking pin mechanism in the hook head ensures firm connection, while the built-in buffer device can effectively absorb the impact force during train operation. Jan type car coupler has the characteristics of solid structure and strong carrying capacity, can withstand tens of thousands of tons of traction force, especially suitable for heavy haul freight trains.

[0004] Because the tongue of Jan type car coupler collides at a relative speed of 1-3 km / h every time two carriages are close, the inclined surface design of the tongue realizes automatic coupling, but the instantaneous impact force can reach dozens of tons every time the two couplers are connected. Long-term repeated impact leads to metal fatigue of the tongue contact surface, resulting in crushing, deformation or cracking. Therefore, the regulations require magnetic powder flaw detection and repair grinding every 6-12 months, and the whole needs to be replaced in serious cases. Because the tongue is not a regular plane, the traditional grinding device, such as grinding wheel, is easy to have dead angle during grinding. Therefore, in order to solve the above problems, a train hook head inner and outer surface polishing equipment is proposed. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art and to provide a train hook head inner and outer surface polishing equipment.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: A train hook head inner and outer surface polishing equipment, comprising a polishing table, a support shaft is rotatably connected to the polishing table, a rotating mounting disc is rotatably connected to both sides of the support shaft, a tongue body is placed on the rotating mounting disc through a limiting assembly, a position adjusting mechanism is arranged on both sides of the support shaft, a vertical polishing assembly and a peripheral polishing assembly are arranged on the position adjusting mechanism, The peripheral polishing assembly comprises a first fixed plate, a peripheral polishing roller is rotatably connected to the first fixed plate, a sliding block is slidably arranged on the first fixed plate, a fixed polishing roller is rotatably connected to the sliding block, and the peripheral polishing roller and the fixed polishing roller are used to polish the periphery of the tongue body; The vertical polishing assembly comprises a vertical polishing sliding rail, a rotary telescopic vertical polishing head is arranged on the vertical polishing sliding rail and slides thereon, and the vertical polishing head is used for vertically polishing the knuckle body.

[0007] The above technical scheme further comprises: The outer side of the two support shafts is fixedly connected with a turnover motor, the output end of the turnover motor is fixedly installed with a turnover gear, the polishing table is fixedly installed with a turnover gear ring coaxial with the support shaft, and the turnover gear and the turnover gear ring are in meshing connection with each other.

[0008] The two rotating mounting discs are rotatably connected with the polishing table through rotating shafts, one end of the rotating shafts extending to the inner side of the polishing table is fixedly installed with a chain wheel, a chain is sleeved and connected between the two chain wheels, and the end of one of the rotating shafts is drivingly connected with a rotating motor.

[0009] The limiting assembly comprises a limiting threaded column fixedly connected to the rotating mounting disc, a pressing threaded cap is threadedly connected to the limiting threaded column, an expansion cylinder fixedly connected with the limiting threaded column is tightly attached to the outer side of the pressing threaded cap, and a gasket is fixedly connected to one side of the rotating mounting disc where the limiting threaded column is located.

[0010] The position adjusting mechanism comprises first sliding rails fixedly installed on both sides of the support shaft, a first motor is fixedly installed at one end of the first sliding rails away from the support shaft, the output end of the first motor is drivingly connected with a first threaded rod rotatably connected with the first sliding rail, a first threaded block fixedly connected with the second sliding rail is threadedly connected to the first threaded rod, and the first threaded block and the first sliding rail slide relative to each other.

[0011] The first sliding rail bottom is slidably provided with a second sliding rail through a second threaded block, one end of the second sliding rail is fixedly installed with a second motor, the output end of the second motor is drivingly connected with a second threaded rod rotatably connected with the second sliding rail, the second threaded rod is threadedly connected with the second threaded block, and the first sliding rail and the second sliding rail are respectively used for X-axis and Y-axis direction movement of the vertical polishing assembly and the peripheral polishing assembly.

[0012] The peripheral polishing assembly further comprises a fixing cylinder fixedly connected with one of the second threaded blocks, a position adjusting motor is fixedly installed on the inner side of the fixing cylinder, the output end of the position adjusting motor is drivingly connected with a transmission shaft rotatably connected with the first fixed plate, and one end of the transmission shaft extending to the outer side of the first fixed plate is fixedly connected with a driving plate.

[0013] The first fixed plate is fixedly provided with a fixed motor, the output end of the fixed motor is in transmission connection with a fixed grinding roller, the outer side wall of the first fixed plate is provided with a sliding groove, the sliding groove is in relative sliding connection with a sliding block, the sliding block is fixedly provided with a peripheral movement motor, and the peripheral movement motor is in transmission connection with a peripheral grinding roller.

[0014] The vertical grinding assembly further comprises a vertical grinding movement motor fixedly installed on the outer side of the vertical grinding sliding rail, the bottom of the other second threaded block is fixedly connected with a second fixed plate, the output end of the vertical grinding movement motor is in transmission connection with a driving flywheel in rotational connection with the second fixed plate, the inner side of the vertical grinding sliding rail is in rotational connection with a vertical grinding screw rod, one end of the vertical grinding screw rod close to the driving flywheel is fixedly connected with a driven flywheel, and the driving flywheel and the driven flywheel are in sleeve connection with a transmission belt.

[0015] The vertical grinding screw rod is in threaded connection with the vertical grinding threaded block, the side surface of the vertical grinding threaded block is fixedly connected with a vertical grinding motor, the output end of the vertical grinding motor is in transmission connection with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected with a vertical grinding head.

[0016] The present application has the following advantages: 1、In the present application, the peripheral grinding roller and the fixed grinding roller are adjusted by sliding the sliding block, which is suitable for the complex curve of the hook tongue edge, solves the problem that the traditional grinding wheel cannot reach the dead angle, and the telescopic grinding head in the vertical grinding assembly is combined with the vertical grinding sliding rail to move, which can accurately process the hook tongue vertical surface and end surface, and realize full coverage grinding in three-dimensional space.

[0017] 2、In the present application, the polishing stations symmetrically arranged on both sides of the supporting shaft are matched with the chain wheel transmission system, so that two hook tongues can be processed at the same time, and the polishing efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first overall structure schematic diagram of the train hook head inner and outer surface polishing equipment; Figure 2 It is a supporting shaft and position adjusting mechanism structure schematic diagram in the present application; Figure 3 It is a peripheral grinding assembly structure schematic diagram in the present application; Figure 4 It is a fixed cylinder internal structure schematic diagram in the present application; Figure 5 It is a vertical grinding assembly structure schematic diagram in the present application; Figure 6 It is a rotating installation disc structure schematic diagram in the present application; Figure 7The structure diagram of the limiting assembly in the application.

[0019] In the figure: 1, polishing table; 2, support shaft; 3, first sliding rail; 4, vertical polishing sliding rail; 5, fixed cylinder; 6, hook tongue body; 7, limiting threaded column; 20, overturning motor; 21, overturning gear; 22, overturning gear ring; 31, first threaded rod; 331, first threaded block; 32, first motor; 33, second motor; 34, second sliding rail; 35, second threaded rod; 3435, second threaded block; 40, vertical polishing screw rod; 41, vertical polishing moving motor; 42, vertical polishing threaded block; 43, second fixed plate; 44, driving flywheel; 45, driven flywheel; 46, transmission belt; 47, vertical polishing head; 48, vertical polishing motor; 49, electric telescopic belt rod; 50, peripheral polishing roller; 51, fixed polishing roller; 52, sliding block; 53, sliding groove; 54, transmission shaft; 55, driving plate; 56, position adjusting motor; 57, fixed motor; 58, peripheral moving motor; 59, first fixed plate; 60, rotating mounting disc; 61, rotating motor; 62, rotating shaft; 63, chain; 64, sprocket; 65, gasket; 70, extruded threaded cap; 71, expanded cylinder; DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0021] As Figures 1-7 shown in the figure, the train hook head inner and outer surface polishing equipment provided by the application comprises a polishing table 1, the polishing table 1 is rotationally connected with a support shaft 2, the polishing table 1 is rotationally connected with rotating mounting discs 60 at both sides of the support shaft 2, the rotating mounting discs 60 are placed with hook tongue bodies 6 through limiting assemblies, the both sides of the support shaft 2 are respectively provided with position adjusting mechanisms, the two position adjusting mechanisms are provided with vertical polishing assemblies and peripheral polishing assemblies, the peripheral polishing assembly comprises a first fixed plate 59, the first fixed plate 59 is rotationally connected with a peripheral polishing roller 50, the first fixed plate 59 is slidingly provided with a sliding block 52, the sliding block 52 is rotationally connected with a fixed polishing roller 51, the peripheral polishing roller 50 and the fixed polishing roller 51 are used for polishing the periphery of the hook tongue body 6; the vertical polishing assembly comprises a vertical polishing sliding rail 4, the vertical polishing sliding rail 4 is slidingly provided with a rotating telescopic vertical polishing head 47, the vertical polishing head 47 is used for vertically polishing the hook tongue body 6; Further, the hook tongue body 6 is placed on the rotating installation disc 60 through the limiting assembly, the two rotating installation discs 60 are synchronously rotated, the two hook tongue bodies 6 are synchronously rotated, and it is ensured that the polishing surfaces are uniformly covered; Further, the two sides of the support shaft 2 are respectively provided with position adjusting mechanisms, the adjusting mechanisms respectively realize X-axis transverse movement and Y-axis longitudinal movement of the vertical polishing assembly and the peripheral polishing assembly, when the peripheral polishing assembly works, the peripheral polishing roller 50 keeps the position relative to the first fixed plate 59 unchanged, meanwhile, the sliding block 52 on the first fixed plate 59 is slidable, the fixed polishing roller 51 rotatingly connected to the sliding block 52 is driven to move, the peripheral polishing roller 50 and the fixed polishing roller 51 are attached to the curved surface of the hook tongue body 6, and the irregular contour of the hook tongue edge is adapted. Further, when the vertical polishing assembly works, the vertical polishing head 47 on the vertical polishing slide rail 4 is rotatably telescopic and slidable along the vertical polishing slide rail 4, the vertical polishing head 47 is used for vertical polishing of the hook tongue body 6, and the vertical polishing head 47 is used for accurately processing the vertical surface and the end surface of the hook tongue body 6.

[0022] As shown in Figure 2 two sides of the support shaft 2 are respectively provided with position adjusting mechanisms, the adjusting mechanisms respectively realize X-axis transverse movement and Y-axis longitudinal movement of the vertical polishing assembly and the peripheral polishing assembly, when the peripheral polishing assembly works, the peripheral polishing roller 50 keeps the position relative to the first fixed plate 59 unchanged, meanwhile, the sliding block 52 on the first fixed plate 59 is slidable, the fixed polishing roller 51 rotatingly connected to the sliding block 52 is driven to move, the peripheral polishing roller 50 and the fixed polishing roller 51 are attached to the curved surface of the hook tongue body 6, and the irregular contour of the hook tongue edge is adapted. Further, when the two hook tongue bodies 6 are polished, the polishing mode needs to be exchanged, for example, when the peripheral polishing of one side of the hook tongue body 6 is completed, the vertical surface needs to be polished, due to the heavy weight of the hook tongue body 6, it is inconvenient to manually carry, therefore, the overturning motor 20 is started, the overturning gear 21 at the output end of the overturning motor 20 is engaged with the overturning gear ring 22 coaxial with the support shaft 2 on the polishing table 1 and is rotated, the support shaft 2 is driven to rotate, the vertical polishing assembly and the peripheral polishing assembly respectively arranged at the two sides of the support shaft 2 are exchanged, different polishing modes are realized for one side of the hook tongue body 6, and the polishing effect is improved.

[0023] As shown in Figure 2 two rotating installation discs 60 and the polishing table 1 are rotatably connected through rotating shafts 62, one end of the rotating shaft 62 extending to the inner side of the polishing table 1 is fixedly installed with a chain wheel 64, the two chain wheels 64 are sleeved with a chain 63, and the end of one of the rotating shafts 62 is drivingly connected with a rotating motor 61 fixedly installed on the inner side of the polishing table 1. Further, in the polishing process of the hook tongue body 6, due to the irregular curved surface of the outer surface of the hook tongue body 6, the rotating motor 61 is started, the two rotating shafts 62 are driven to rotate through the transmission of the chain wheel 64 and the chain 63, and then the two hook tongue bodies 6 are rotated around the rotating shaft 62, and it is ensured that the polishing surfaces of the hook tongue bodies 6 are uniformly covered.

[0024] As shown in Figure 7 , the limiting assembly includes a limiting threaded column 7 fixedly connected to the rotating mounting disc 60, a threaded cap 70 is threadedly connected to the limiting threaded column 7, an expansion cylinder 71 fixedly connected to the limiting threaded column 7 is tightly fitted outside the threaded cap 70, and a gasket 65 is fixedly connected to one side of the rotating mounting disc 60; Further, before starting the device, the worker places the tongue body 6 on the rotating mounting disc 60 by hoisting the device or manually, and the pin hole of the tongue body 6 needs to be sleeved on the limiting threaded column 7, which is fixed by the limiting assembly. Specifically, the threaded cap 70 is rotated, and a radial expansion force is generated on the expansion cylinder 71 during the tightening of the threaded cap 70, so that the outer wall of the expansion cylinder 71 tightly presses the inner wall of the mounting hole of the tongue body 6.

[0025] As shown in Figures 3-5 , the position adjusting mechanism includes first sliding rails 3 fixedly installed on both sides of the supporting rotating shaft 2, a first motor 32 is fixedly installed at one end of the first sliding rail 3 away from the supporting rotating shaft 2, a first threaded rod 31 is transmissionally connected to the output end of the first motor 32 and rotationally connected to the first sliding rail 3, a first threaded block 331 fixedly connected to a second sliding rail 34 is threadedly connected to the first threaded rod 31, and the first threaded block 331 slides relative to the first sliding rail 3; The first sliding rail 3 is slidably provided with the second sliding rail 34 through a second threaded block 3435, a second motor 33 is fixedly installed at one end of the second sliding rail 34, a second threaded rod 35 is transmissionally connected to the output end of the second motor 33 and rotationally connected to the second sliding rail 34, the second threaded rod 35 is threadedly connected to the second threaded block 3435, and the first sliding rail 3 and the second sliding rail 34 are respectively used for moving the vertical polishing assembly and the peripheral polishing assembly in X-axis and Y-axis directions; Further, the first motor 32 drives the first threaded rod 31 to rotate, and through the thread cooperation with the first threaded block 331, the second sliding rail 34 is driven to move transversely along the first sliding rail 3, which provides an X-axis positioning reference for the vertical polishing assembly and the peripheral polishing assembly.

[0026] Further, the second motor 33 drives the second threaded rod 35 to rotate, and through the cooperation with the second threaded block 3435, the vertical polishing assembly or the peripheral polishing assembly is moved longitudinally along the second sliding rail 34.

[0027] As shown in Figure 4As shown, the peripheral polishing assembly further comprises a fixing cylinder 5 fixedly connected with one of the second threaded blocks 3435, the inner side of the fixing cylinder 5 is fixedly installed with a position adjusting motor 56, the output end of the position adjusting motor 56 is drivingly connected with a transmission shaft 54 rotatably connected with a first fixing plate 59, one end of the transmission shaft 54 extending to the outer side of the first fixing plate 59 is fixedly connected with a driving plate 55; The first fixing plate 59 is fixedly installed with a fixing motor 57, the output end of the fixing motor 57 is drivingly connected with the fixed polishing roller 51, the outer side wall of the first fixing plate 59 is provided with a sliding groove 53, the sliding groove 53 is relatively slid with a sliding block 52, the sliding block 52 is fixedly connected with a peripheral moving motor 58, the peripheral moving motor 58 is drivingly connected with the peripheral polishing roller 50; Further, the moving path of the peripheral polishing assembly and the vertical polishing assembly is designed according to the shape of the knuckle body 6, the work of each executing electric device is controlled by PLC, and the sensor feedback control is combined to ensure the smooth progress of the polishing process.

[0028] Further, when the peripheral polishing operation of the knuckle body 6 is performed, first, the position adjusting mechanism is used to move the peripheral polishing assembly to a suitable polishing position, when it is necessary to adjust the position of the peripheral polishing roller 50 on the first fixing plate 59 to adapt to the polishing requirements of different parts of the knuckle body 6, the position adjusting motor 56 is started, the output end of the position adjusting motor 56 drives the transmission shaft 54 to rotate, since the transmission shaft 54 is rotatably connected with the first fixing plate 59, the rotation of the transmission shaft 54 drives the driving plate 55 to rotate, the rotation of the driving plate 55 drives the peripheral polishing roller 50 to slide in the inner side of the sliding groove 53, so that the fixed polishing roller 51 and the peripheral polishing roller 50 are in a polishing state of being always attached to the knuckle body 6.

[0029] Further, during the polishing process, the fixing motor 57 is started, the output end of the fixing motor 57 drives the fixed polishing roller 51 to rotate, the fixed polishing roller 51 is a polishing roller with a rough surface coefficient, which performs preliminary polishing operation on the periphery of the knuckle body 6, at the same time, the peripheral moving motor 58 is started, the output end of the peripheral moving motor 58 drives the peripheral polishing roller 50 to rotate, the peripheral polishing roller 50 is a polishing roller with a fine surface coefficient, through the different positions and rotations of the two, the irregular contour of the knuckle edge is adapted.

[0030] As shown in the figure, Figure 5 The vertical polishing assembly further comprises a vertical polishing moving motor 41 fixedly installed on the outer side of the vertical polishing sliding rail 4, the bottom of the other second threaded block 3435 is fixedly connected with a second fixing plate 43, the output end of the vertical polishing moving motor 41 is drivingly connected with a driving pulley 44 rotatably connected with the second fixing plate 43, the inner side of the vertical polishing sliding rail 4 is rotatably connected with a vertical polishing screw 40, one end of the vertical polishing screw 40 close to the driving pulley 44 is fixedly connected with a driven pulley 45, the driving pulley 44 and the driven pulley 45 are connected with a transmission belt 46 in a sleeved manner. The vertical polishing screw 40 is in threaded connection with the vertical polishing threaded block 42, the side surface of the vertical polishing threaded block 42 is fixedly connected with the vertical polishing motor 48, the output end of the vertical polishing motor 48 is in transmission connection with the electric telescopic belt rod 49, and the telescopic end of the electric telescopic belt rod 49 is fixedly connected with the vertical polishing head 47. Further, in the polishing process of one of the hook tongue bodies 6, the other hook tongue body 6 is polished synchronously, at this time, the position of the vertical polishing assembly and the movement path are adjusted through the position adjusting assembly, the vertical polishing motor 41 is started, the output end of the vertical polishing motor 41 drives the driving flywheel 44 to rotate, the driving flywheel 44 is in sleeved connection with the driven flywheel 45 through the transmission belt 46, and the rotation of the driving flywheel 44 drives the driven flywheel 45 to rotate synchronously through the transmission belt 46. The driven flywheel 45 is fixedly connected to one end of the vertical polishing screw 40 close to the driving flywheel 44, so that the rotation of the driven flywheel 45 drives the vertical polishing screw 40 to rotate in the vertical polishing slide rail 4. Further, the vertical polishing screw 40 is in threaded connection with the vertical polishing threaded block 42, in the process of rotation of the vertical polishing screw 40, according to the principle of threaded transmission, the vertical polishing threaded block 42 moves linearly along the vertical polishing screw 40, and moves up and down on the vertical polishing slide rail 4, so as to drive the vertical polishing motor 48 fixedly connected to the side surface of the vertical polishing threaded block 42 to move up and down. Further, when the vertical polishing motor 48 moves to a suitable height position, the vertical polishing motor 48 is started, the output end of the vertical polishing motor 48 drives the electric telescopic belt rod 49 to rotate, the electric telescopic belt rod 49 can not only rotate with the rotation of the vertical polishing motor 48, but also can be adjusted in length according to actual polishing requirements, the telescopic end of the electric telescopic belt rod 49 is fixedly connected with the vertical polishing head 47, the telescopic adjustment of the electric telescopic belt rod 49 can adjust the contact distance between the vertical polishing head 47 and the hook tongue body 6, so that the vertical polishing head 47 can accurately fit on the vertical surface to be polished of the hook tongue body 6.

[0031] Further, the rotating vertical polishing head 47 polishes the vertical surface of the hook tongue body 6, removes burrs, unevenness and other defects on the surface, improves the smoothness and quality of the vertical surface of the hook tongue body 6, and meets the use requirements of the train hook head.

[0032] Further, the position of the vertical polishing assembly and the peripheral polishing assembly on the two sides is adjusted by rotating the supporting shaft 2, the two polishing modes of the hook tongue body 6 are realized, and the overall polishing effect and polishing efficiency of the hook tongue body 6 are improved.

[0033] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A train coupler head inner and outer surface polishing apparatus comprising a polishing table (1), characterized in that, The polishing table (1) is rotationally connected with a supporting rotating shaft (2), the polishing table (1) is rotationally connected with a rotating mounting disc (60) at both sides of the supporting rotating shaft (2), the rotating mounting disc (60) is placed with a hook tongue body (6) through a limiting assembly, the both sides of the supporting rotating shaft (2) are respectively provided with a position adjusting mechanism, the two position adjusting mechanisms are provided with a vertical polishing assembly and a peripheral polishing assembly, The peripheral polishing assembly comprises a first fixed plate (59), the first fixed plate (59) is rotationally connected with a peripheral polishing roller (50), the first fixed plate (59) is slidably provided with a sliding block (52), the sliding block (52) is rotationally connected with a fixed polishing roller (51), and the peripheral polishing roller (50) and the fixed polishing roller (51) are used for polishing the periphery of the hook tongue body (6); The vertical polishing assembly comprises a vertical polishing sliding rail (4), the vertical polishing sliding rail (4) is slidably provided with a rotating telescopic vertical polishing head (47), and the vertical polishing head (47) is used for vertically polishing the hook tongue body (6).

2. The train coupler polishing apparatus according to claim 1, wherein The outer sides of the two supporting rotating shafts (2) are fixedly connected with a turnover motor (20), the output end of the turnover motor (20) is fixedly installed with a turnover gear (21), the polishing table (1) is fixedly installed with a turnover gear ring (22) coaxial with the supporting rotating shaft (2), and the turnover gear (21) and the turnover gear ring (22) are meshed with each other.

3. The train coupler polishing apparatus according to claim 1, wherein The two rotating mounting discs (60) and the polishing table (1) are rotationally connected through rotating shafts (62), one end of the rotating shaft (62) extending to the inner side of the polishing table (1) is fixedly installed with a chain wheel (64), the two chain wheels (64) are sleeved and connected with a chain (63), and the end of the rotating shaft (62) is drivingly connected with a rotating motor (61), which is fixedly installed on the inner side of the polishing table (1).

4. The train coupler polishing apparatus according to claim 1, wherein The limiting assembly comprises a limiting threaded column (7) fixedly connected on the rotating mounting disc (60), the limiting threaded column (7) is threadedly connected with an extrusion threaded cap (70), the outer side of the extrusion threaded cap (70) is tightly attached with an expansion cylinder (71) fixedly connected with the limiting threaded column (7), and the rotating mounting disc (60) is fixedly connected with a gasket (65) on one side of the limiting threaded column (7).

5. The train coupler polishing apparatus according to claim 1, wherein The position adjusting mechanism comprises a first sliding rail (3) fixedly installed on both sides of the supporting rotating shaft (2), a first motor (32) is fixedly installed on the end of the first sliding rail (3) away from the supporting rotating shaft (2), the output end of the first motor (32) is drivingly connected with a first threaded rod (31) rotationally connected with the first sliding rail (3), the first threaded rod (31) is threadedly connected with a first threaded block (331) fixedly connected with a second sliding rail (34), and the first threaded block (331) and the first sliding rail (3) slide relative to each other.

6. A device for polishing the inner and outer surfaces of a train coupler head according to claim 5, wherein The bottom of the first sliding rail (3) is slidably provided with a second sliding rail (34) through a second threaded block (3435), one end of the second sliding rail (34) is fixedly installed with a second motor (33), the output end of the second motor (33) is drivingly connected with a second threaded rod (35) rotatably connected with the second sliding rail (34), the second threaded rod (35) is threadedly connected with the second threaded block (3435), and the first sliding rail (3) and the second sliding rail (34) are respectively used for vertical polishing assembly and peripheral polishing assembly X-axis and Y-axis direction movement.

7. A device for polishing the inner and outer surfaces of a train coupler head according to claim 6, characterized in that, The peripheral polishing assembly further comprises a fixed cylinder (5), the fixed cylinder (5) is fixedly connected with one of the second threaded blocks (3435), the inner side of the fixed cylinder (5) is fixedly installed with a position adjusting motor (56), the output end of the position adjusting motor (56) is drivingly connected with a transmission shaft (54) rotatably connected with a first fixed plate (59), and one end of the transmission shaft (54) extending to the outside of the first fixed plate (59) is fixedly connected with a driving plate (55).

8. The train coupler polishing apparatus according to claim 7, wherein The first fixed plate (59) is fixedly installed with a fixed motor (57), the output end of the fixed motor (57) is drivingly connected with a fixed polishing roller (51), a sliding groove (53) is formed in the outer side wall of the first fixed plate (59), the sliding groove (53) is relatively slid with a sliding block (52), the sliding block (52) is fixedly connected with a peripheral movement motor (58), and the peripheral movement motor (58) is drivingly connected with the peripheral polishing roller (51).

9. The train coupler polishing apparatus of claim 6, wherein, The vertical polishing assembly further comprises a vertical polishing movement motor (41) fixedly installed on the outside of the vertical polishing sliding rail (4), the bottom of the other second threaded block (3435) is fixedly connected with a second fixed plate (43), the output end of the vertical polishing movement motor (41) is drivingly connected with a driving freewheel (44) rotatably connected with the second fixed plate (43), the inner side of the vertical polishing sliding rail (4) is rotatably connected with a vertical polishing screw rod (40), one end of the vertical polishing screw rod (40) close to the driving freewheel (44) is fixedly connected with a driven freewheel (45), and the driving freewheel (44) and the driven freewheel (45) are connected with a transmission belt (46) in a sleeved mode.

10. The device for polishing the inner and outer surfaces of a train coupler head according to claim 9, wherein The vertical polishing screw rod (40) is threadedly connected with a vertical polishing threaded block (42), the side surface of the vertical polishing threaded block (42) is fixedly connected with a vertical polishing motor (48), the output end of the vertical polishing motor (48) is drivingly connected with an electric telescopic rod (49), and the telescopic end of the electric telescopic rod (49) is fixedly connected with a vertical polishing head (47).

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