A coupler buffer automatic dismounting and mounting robot

Abstract

The present application relates to the technical field of car coupler buffer dismounting, in particular to a car coupler buffer automatic dismounting robot. The robot comprises a mechanical arm arranged above a dismounting table, the end effector of the mechanical arm is connected with a dismounting tool for dismounting the car coupler buffer, and further comprises a fixing plate provided with a passive descending mechanism at the bottom, the fixing plate is used for being connected with a rear crushing system, so that the passive descending mechanism supports the descending of the rear crushing system, a buffer system, a coupling system and a centering device. The passive descending mechanism is arranged to support the downward movement of the car coupler buffer, and a bearing table with different heights is arranged on the downward movement path of the car coupler buffer to support the dismounted components. When the buffer system is dismounted, the centering device will continue to descend and be separated from the buffer system, so that the lifting of the buffer system is avoided. Moreover, the dismounted components are at different heights, the operation space for transfer is increased, and the probability of collision is reduced.

Description

Technical Field

[0001] This invention relates to the field of coupler buffer disassembly and assembly technology, and more specifically, to an automatic coupler buffer disassembly and assembly robot. Background Technology

[0002] The coupler buffer, also known as a train coupler shock absorber, is a key component in rail vehicles that enables the coupling of cars, locomotives, or power cars. It plays a crucial role in transmitting traction and braking forces, as well as mitigating longitudinal impacts during operation. This device typically consists of a rear crushing system, a buffer system, a coupling system, and an alignment device. Given its central role in train safety and braking performance, the coupler buffer must undergo professional maintenance at prescribed intervals.

[0003] The maintenance process first requires disassembling the device from the bottom of the vehicle body and transferring it to a specialized maintenance facility. At the facility, the coupler buffer device needs to be completely disassembled, specifically the rear crushing system, buffer system, coupling system, and centering device, one by one. However, the following technical challenges exist in this overall disassembly process:

[0004] First, the buffer system and the rear crushing system are rotatably connected by a hook pin, while the centering device restricts the rotation range of the buffer system through stops located on both sides. If the buffer system is to be disassembled first, it needs to be lifted upwards to break free from the stop restrictions, but due to the large weight of the buffer system, manual operation is difficult; if the centering device is disassembled first, the buffer system is prone to shaking during subsequent disassembly after losing its centering constraint, which not only increases the difficulty of operation but also affects the disassembly efficiency.

[0005] Secondly, the components are compactly arranged after being disassembled, and the operating space is small. When a single component is removed, its movement path is prone to interference with adjacent components, posing a risk of accidental collision. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic coupler buffer disassembly and assembly robot, which solves the problems mentioned in the background art by disassembling the buffer system during the descent process, namely, the difficulty of the buffer system detaching from the centering device and the risk of accidental collision.

[0007] To achieve the above objectives, the automatic coupler buffer disassembly and assembly robot includes a robotic arm mounted above the disassembly and assembly platform. The end effector of the robotic arm is connected to a disassembly and assembly tool for disassembling and assembling the coupler buffer. It also includes a fixed plate with a passive descent mechanism at the bottom. The fixed plate is used to connect to the rear crushing system, so that the passive descent mechanism supports the descent of the rear crushing system, the buffer system, the coupling system, and the centering device.

[0008] The descent path of the coupling system is equipped with a fixed support platform to limit its further descent; the descent path of the buffer system is equipped with a movable support platform to limit its further descent. The movable support platform is slidably connected to the disassembly platform, and the fixed support platform is fixedly connected to the disassembly platform. The height of the fixed support platform is higher than the height of the movable support platform.

[0009] The moving support platform is equipped with a stop structure on the side near the centering device. When the connecting system or buffer system is removed, the stop structure is located below the centering device, and the passive lowering mechanism stops descending during the disassembly process by supporting the centering device. When the buffer system is removed, the stop structure disengages from the centering device, causing the centering device to move downward and detach from the buffer system.

[0010] In the above technical solution, multiple support platforms block the components of the coupler buffer at different heights during the descent process. At this time, the centering device moves downward to detach from the buffer system without lifting the buffer system.

[0011] Based on this, the passive lowering mechanism includes a piston rod fixedly installed at the bottom of the fixed plate and a piston cylinder sleeved on the outer ring of the piston rod, wherein the bottom outer ring of the piston cylinder is provided with a pressure relief port.

[0012] Based on this, the stop structure includes a first stop and a second stop; the moving support platform extends outward from the side near the centering device to form the first stop, and a stop plate is fixedly installed at the bottom of the first stop, with the bottom end of the stop plate bent towards the centering device to form the second stop. Specifically, when the fixed support platform contacts the suspension system, the first stop contacts the centering device to limit the downward movement of the passive lowering mechanism; when the moving support platform contacts the buffer system, the second stop contacts the centering device to limit the downward movement of the passive lowering mechanism.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In this automatic coupler buffer assembly / disassembly robot, a passive descent mechanism is used to support the downward movement of the coupler buffer, and support platforms of different heights are set along the downward path of the coupler buffer to support the disassembled components. When the buffer system is disassembled, the centering device continues to descend and detaches from the buffer system, thus avoiding lifting the buffer system. Furthermore, the disassembled components are at different heights, increasing the operational space for transfer and reducing the probability of collisions.

[0015] 2. In this automatic coupler buffer disassembly and assembly robot, the passive descent mechanism is different from the current active drive structure (such as cylinders and hydraulic cylinders). It mainly uses the self-weight of the coupler buffer to support the downward movement of the coupler buffer. After the components of the coupler buffer come into contact with the corresponding support platform, they cooperate with the stop structure to stop the descent and avoid damage to the coupler buffer caused by excessive descent distance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing plate and the rear crushing system of the present invention;

[0019] Figure 4 This is a schematic diagram of the descent mechanism of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the moving support platform of the present invention. Figure 1 ;

[0021] Figure 6 This is a schematic diagram of the structure of the moving support platform of the present invention. Figure 2 ;

[0022] Figure 7 This is a schematic diagram of the fixed support platform of the present invention;

[0023] Figure 8 This is a schematic diagram of the working state of the moving support platform of the present invention. Figure 1 ;

[0024] Figure 9 This is a schematic diagram of the working state of the moving support platform of the present invention. Figure 2 .

[0025] The meanings of the labels in the diagram are as follows:

[0026] 100. Assembly / disassembly platform; 101. Robotic arm; 110. Fixed plate; 111. Support plate; 120. Moving bearing platform; 121. First stop; 122. Second stop; 123. Roller; 124. Support rod; 125. Sliding assembly; 126. Electric push rod; 127. Rubber pad; 130. Fixed bearing platform; 131. Upright pole; 132. Support column; 140. Passive lowering mechanism; 141. Piston rod; 142. Piston cylinder; 143. Pressure relief port; 144. Return spring; 200. Rear crushing system; 201. Buffer system; 202. Connecting system; 203. Centering device. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] To address the technical challenges currently encountered in the overall disassembly process, this invention provides an automated robot for disassembling and assembling coupler buffers. For example... Figure 1 As shown, the disassembly and assembly robot includes a robotic arm 101 mounted above a disassembly and assembly platform 100. The end effector of the robotic arm 101 is connected to disassembly and assembly tools, including but not limited to electric wrenches and grippers. The robotic arm 101 uses tools such as electric wrenches and grippers to disassemble and assemble the coupler buffer mounted above the disassembly and assembly platform 100. To facilitate the placement of the coupler buffer, the length of the disassembly and assembly platform 100 is set to correspond to the length of the coupler buffer. Furthermore, to facilitate the disassembly and assembly of any part by the robotic arm 101, this design adds a moving mechanism to the robotic arm 101. Specifically, a slide rail and a lead screw are set along the length direction of the disassembly and assembly platform 100. The robotic arm 101 is slidably mounted on the slide rail and threadedly connected to the lead screw. Then, a motor at one end of the lead screw drives the robotic arm 101 to move along the length direction of the disassembly and assembly platform 100, improving the flexibility of the robotic arm 101. In addition, the height of the disassembly and assembly platform 100 is preferably around 80cm. Together with the fixed plate 110, the moving support platform 120 and the fixed support platform 130 set on the top of the disassembly and assembly platform 100, the coupler buffer is supported at a height near the waist of the worker, which can reduce the number of times the worker bends over or squats.

[0031] like Figure 2As shown, the fixed plate 110 is used for a detachable fixed connection with the rear crushing system 200, and a passive lowering mechanism 140 is provided at the bottom of the fixed plate 110. The passive lowering mechanism 140 supports the rear crushing system 200 and the buffer system 201, the coupling system 202 and the centering device 203 connected to the rear crushing system 200 for lowering under the gravity of the rear crushing system 200. A fixed support platform 130 is provided on the lowering path of the coupling system 202 to limit the further lowering of the coupling system 202. A movable support platform 120 is provided on the lowering path of the buffer system 201 to limit the further lowering of the buffer system 201. The movable support platform 120 is slidably connected to the disassembly and assembly platform 100. The height of the fixed support platform 130 is higher than the height of the movable support platform 120. In addition, a stop structure is provided on the side of the moving support platform 120 near the centering device 203. When the connecting system 202 or the buffer system 201 is removed, the stop structure is located below the centering device 203, and the passive lowering mechanism 140 stops descending during the disassembly process by supporting the centering device 203. When the buffer system 201 is removed, the stop structure disengages from the centering device 203, causing the centering device 203 to move downward and disengage from the buffer system 201.

[0032] In other words, this invention supports the downward movement of the coupler buffer by setting a passive lowering mechanism 140, and sets support platforms of different heights along the downward movement path of the coupler buffer to support the disassembled components. When the buffer system 201 is disassembled, the centering device 203 continues to descend and detaches from the buffer system 201, thereby avoiding lifting the buffer system 201. Furthermore, the disassembled components are at different heights, increasing the operational space for transfer and reducing the probability of collisions.

[0033] Specifically, regarding the selection of the fixing point for the coupler buffer, this solution is based on the disassembly sequence. Currently, disassembly primarily begins with the coupling system 202, i.e., the disassembly sequence is coupling system 202 → buffer system 201 → centering device 203 → rear crushing system 200. In other words, the rear crushing system 200 is the last to be disassembled, therefore fixing it to the fixing plate 110 is the optimal choice. Next, to achieve a detachable fixed connection with the rear crushing system 200, the mounting plate within the rear crushing system 200 was found to be the optimal fixing point. Then, the structure of the fixing plate 110 is adaptively adjusted based on the mounting plate in the rear crushing system 200 to achieve stable fixing. The adjusted structure of the fixing plate 110 is as follows... Figure 3As shown, the top of the fixing plate 110 is recessed downward to form a "U"-shaped structure. The width of the recess is greater than the outer diameter of the crushing tube in the rear crushing system 200, so that the crushing tube in the rear crushing system 200 can enter the recess of the fixing plate 110. At this time, the side wall of the fixing plate 110 can fit with the mounting plate in the rear crushing system 200. Then, the fixing plate 110 is provided with a through hole at the position corresponding to the bolt hole of the mounting plate. By passing the bolt through the bolt hole of the mounting plate and the through hole of the fixing plate 110, the rear crushing system 200 is fixed at the fixing plate 110. At this time, the buffer system 201, the connecting system 202 and the centering device 203 that have not been removed are also fixed together.

[0034] It is important to note that after the rear crushing system 200 is fixed, the passive lowering mechanism 140 supporting its descent cannot be a conventional cylinder, hydraulic rod, or other similar drive mechanism. This is because cylinders and hydraulic rods actively drive the rear crushing system 200 downwards using internal gas or liquid, which can easily lead to a mismatch between the descent distance of the coupler buffer and the heights of the fixed support platform 130 and the moving support platform 120. For example, if the height of the coupling system 202 is higher than the fixed support platform 130, the coupling system 202 will be suspended during disassembly; if it is lower than the fixed support platform 130, the fixed support platform 130 can obstruct the movement, potentially damaging the coupler buffer. To avoid this instability, this invention uses a passive method to support the descent of the rear crushing system 200. Its specific structure is as follows... Figure 4 As shown:

[0035] The passive descent mechanism 140 includes a piston rod 141 fixedly mounted at the bottom of the fixed plate 110 and a piston cylinder 142 sleeved on the outer ring of the piston rod 141. To achieve controllable downward movement of the rear crushing system 200, this design provides a piston plate at the bottom end of the piston rod 141, the outer ring of which slides against the inner ring of the piston cylinder 142. The upper and lower parts of the piston plate are isolated. The bottom outer ring of the piston cylinder 142 is provided with a pressure relief port 143. When the gravity of the rear crushing system 200 is applied to the piston rod 141 through the fixed plate 110, the piston rod 141 is forced to drive the piston plate downward. At this time, the piston plate squeezes the gas in the piston cylinder 142 out of the pressure relief port 143. The size of the pressure relief port 143 determines the speed of gas outflow, thereby achieving controllable downward movement of the piston rod 141 and avoiding rapid downward movement of the rear crushing system 200. Furthermore, a return spring 144 is provided at the bottom of the piston plate so that when the rear crushing system 200 disengages from the fixed plate 110, the piston rod 141 is moved upward and reset by the return spring 144. Alternatively, a cylinder can be used to drive the fixed plate 110 upward and reset.

[0036] Because the bottom of the fixed support platform 130 has many parts, using a plate to support the bottom of the fixed support platform 130 would easily damage these parts. Therefore, if... Figure 7 As shown, the fixed support platform 130 in this embodiment has a plate-like structure, but the difference lies in that multiple uprights 131 are provided on the top of the fixed support platform 130. The multiple uprights 131 are distributed in the gaps at the bottom of the corresponding connecting system 202, and the uprights 131 contact the bottom of the fixed support platform 130, thereby avoiding damage to the parts. The bottom of the fixed support platform 130 is fixedly mounted on the top of the disassembly and assembly platform 100 by support columns 132.

[0037] Figure 5 The specific structure of the movable support platform 120 is shown. The movable support platform 120 is a plate-shaped structure with an arc-shaped groove at the top that matches the outer ring of the buffer system 201, and its bottom is slidably connected to the top of the disassembly and assembly platform 100 via a sliding assembly 125. The sliding assembly 125 consists of a slide rail, a slider, and a support rod 124. The slide rail is fixedly installed on the top of the disassembly and assembly platform 100 along the length of the coupler buffer, and the support rod 124 is used to support the movable support platform 120 at a predetermined height and is fixedly connected to the sliding assembly 125. At the same time, an electric push rod 126 is connected to one side of the slider, and the electric push rod 126 drives the slider to move the movable support platform 120. When the buffer system 201 is pressed into the arc-shaped groove, the hook tail pin between the buffer system 201 and the rear crushing system 200 is removed. At this time, the movable support platform 120 is driven to move, and the movable support platform 120 can then drive the buffer system 201 to detach from the rear crushing system 200. To increase the stability of this process, this embodiment applies an anti-slip treatment to the arc-shaped groove, specifically by placing a rubber pad 127 (see reference) on the surface of the arc-shaped groove. Figure 6 The rubber pad 127 has a certain thickness and can deform during the contact with the buffer system 201 to increase the friction with the rear crushing system 200, so that the moving support platform 120 can drive the buffer system 201 during the movement.

[0038] Not only that, Figure 5 The specific structure of the stop structure is also shown. As shown in the figure, the movable support platform 120 extends outward from the side near the centering device 203 to form a first stop portion 121. A stop plate is fixedly provided at the bottom of the first stop portion 121, and the bottom end of the stop plate is bent towards the centering device 203 to form a second stop portion 122. In this embodiment, the heights of the first stop portion 121 and the second stop portion 122 need to correspond to the fixed support platform 130 and the movable support platform 120. Specifically, when the upright 131 contacts the hanging system 202, the first stop portion 121 contacts the centering device 203 to limit the downward movement of the passive lowering mechanism 140; when the movable support platform 120 contacts the buffer system 201, the second stop portion 122 contacts the centering device 203 to limit the downward movement of the passive lowering mechanism 140.

[0039] Furthermore, to reduce the damage caused to the centering device 203 by the first stop 121 and the second stop 122, this embodiment avoids such damage in the following manner:

[0040] First, rollers 123 are provided at the top of both the first stop 121 and the second stop 122. These rollers 123 reduce friction with the centering device 203, thereby minimizing damage to the centering device 203. Secondly, as... Figure 3 and Figure 4 As shown, by setting a support plate 111 at the bottom of the centering device 203, the support plate 111 is fixedly connected to the fixed plate 110, and the roller 123 is set below the support plate 111. At this time, the roller 123 does not contact the centering device 203, but restricts the passive lowering mechanism 140 through the support plate 111.

[0041] The working principle of this invention will be described in detail below:

[0042] like Figure 8 As shown, after the rear crushing system 200 is connected to the fixed plate 110, the rear crushing system 200 presses the passive lowering mechanism 140 to retract, thereby driving the buffer system 201, the connecting system 202, and the centering device 203 to move downward. When the connecting system 202 moves down to the top of the upright 131, the roller 123 at the top of the first stop 121 is below the support plate 111 and restricts the downward movement of the support plate 111. Then, the connecting part of the connecting system 202 and the buffer system 201 is disassembled by the robotic arm 101. Since the fixed bearing platform 130 restricts the downward movement of the connecting system 202, and the first stop 121 restricts the downward movement of the rear crushing system 200 and the buffer system 201 through the support plate 111, no relative displacement will occur between the connecting system 202 and the buffer system 201 during the disassembly process, so as to achieve stable disassembly.

[0043] When the coupling system 202 disengages from the buffer system 201, the electric push rod 126 drives the moving support platform 120 to move towards the fixed support platform 130, causing the roller 123 on the top of the first stop 121 to disengage from the support plate 111. At this time, the rear crushing system 200, the buffer system 201, and the centering device 203 will continue to press the passive lowering mechanism 140 down, causing the buffer system 201 to press into the arc-shaped groove of the moving support platform 120. At this time, the roller 123 on the top of the second stop 122 is below the support plate 111 and restricts the downward movement of the support plate 111. Then, the connection between the buffer system 201 and the rear crushing system 200 is disassembled by the robotic arm 101. Since the moving support platform 120 restricts the downward movement of the buffer system 201, and the second stop 122 restricts the downward movement of the rear crushing system 200 and the centering device 203 through the support plate 111, no relative displacement occurs between the buffer system 201 and the rear crushing system 200 during the disassembly process, thus achieving stable disassembly. Subsequently, the moving support platform 120 is driven to move towards the fixed support platform 130. When the buffer system 201 disengages from the rear crushing system 200, the second stop 122 also moves out from the bottom of the support plate 111. At this time, the support plate 111 descends to the top of the disassembly platform 100, the centering device 203 disengages from the buffer system 201, and then the centering device 203 is disassembled.

[0044] It should be noted that, in order to ensure that the moving support platform 120 can drive the buffer system 201 to detach from the crushing system 200 during the movement, electric clamping arms can be installed on both sides of the moving support platform 120. The clamping arms clamp the buffer system 201 on both sides, thereby driving the buffer system 201 to move.

[0045] Furthermore, to facilitate the installation of the coupler buffer, this invention also supports the adjustment of the height of the fixed bearing platform 130 and the movable bearing platform 120. The specific structure is as follows: the support rod 124 slides longitudinally through the sliding assembly 125, and the support column 132 slides longitudinally through the top of the disassembly / assembly platform 100. Bolts are provided at the penetration points of both the disassembly / assembly platform 100 and the movable bearing platform 120. (The bolt reference is missing from the original text.) Figure 5 In this way, when the coupler buffer needs to be installed, the bolts are loosened, and the sliding support rod 124 and support column 132 are moved so that the moving support platform 120 and the fixed support platform 130 are at the same height. Then the bolts are tightened. At this time, the corresponding parts after maintenance are placed on the moving support platform 120 and the fixed support platform 130 for assembly.

[0046] In summary, the passive lowering mechanism 140 in this invention differs from current active drive structures (such as cylinders and hydraulic cylinders). It mainly uses the weight of the coupler buffer to support the lowering of the coupler buffer, so that after the components of the coupler buffer come into contact with the corresponding support platform, they cooperate with the stop structure to stop the descent and avoid damage to the coupler buffer due to excessive descent distance.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car coupler buffer automatic dismounting and mounting robot, comprising a mechanical arm (101) arranged above a dismounting and mounting table (100), an end effector of the mechanical arm (101) being connected with a dismounting and mounting tool for dismounting and mounting a car coupler buffer, characterized in that: It also includes a fixed plate (110) provided with a passive descending mechanism (140), which is used to connect with the rear crush system (200), so that the passive descending mechanism (140) supports the rear crush system (200), the buffer system (201), the hitching system (202) and the centering device (203) to descend; A fixed bearing table (130) is arranged on the descending path of the hitching system (202) to limit its continuous descent; a movable bearing table (120) is arranged on the descending path of the buffer system (201) to limit its continuous descent, and the movable bearing table (120) is slidably connected with the dismounting table (100), the fixed bearing table (130) is fixedly connected with the dismounting table (100), and the height of the fixed bearing table (130) is higher than that of the movable bearing table (120); The movable bearing table (120) is provided with a stop structure on the side close to the centering device (203), which is below the centering device (203) when the hitching system (202) or the buffer system (201) is dismounted, so as to stop the passive descending mechanism (140) from descending during dismounting by supporting the centering device (203); when the buffer system (201) is dismounted, the stop structure is separated from the centering device (203), so that the centering device (203) is separated from the buffer system (201) by moving downward.

2. The car coupler buffer automatic dismounting robot according to claim 1, characterized in that: The top of the fixed plate (110) is recessed downward to form a "U" structure for the rear crush system (200) to enter, and the fixed plate (110) is fixed with the mounting plate of the rear crush system (200) by bolts.

3. The car coupler buffer automatic dismounting robot according to claim 1, characterized in that: The passive descending mechanism (140) includes a piston rod (141) fixedly arranged at the bottom of the fixed plate (110) and a piston cylinder (142) sleeved on the outer circle of the piston rod (141), and the bottom outer circle of the piston cylinder (142) is provided with a pressure relief port (143).

4. The car coupler buffer automatic dismounting robot according to claim 3, characterized in that: The bottom of the piston rod (141) is provided with a reset spring (144) for driving the piston rod (141) to move upward and reset.

5. The car coupler buffer automatic dismounting robot according to claim 1, characterized in that: The fixed bearing table (130) is a plate structure, and the top of the fixed bearing table (130) is provided with a plurality of vertical rods (131) distributed at the clearance at the bottom of the hitching system (202).

6. The car coupler buffer automatic dismounting robot according to claim 1, characterized in that: The movable bearing table (120) is a plate structure, and the top of the movable bearing table (120) is provided with an arc-shaped groove matched with the outer circle of the buffer system (201); It also includes an electric push rod (126) for driving the movable bearing table (120) to move.

7. The automatic coupler buffer dismounting robot according to claim 6, characterized in that: The surface of the arc-shaped groove is provided with a rubber pad (127) for increasing the friction between the rear crush system (200).

8. The car coupler buffer automatic dismounting robot according to claim 1, characterized in that: The stop structure includes a first stop portion (121) and a second stop portion (122); The movable bearing table (120) extends outward to form the first stop portion (121) on the side close to the centering device (203), and the bottom of the first stop portion (121) is fixedly provided with a stop plate, and the bottom end of the stop plate is bent to form the second stop portion (122) on the side of the centering device (203).

9. The car coupler buffer automatic dismounting robot according to claim 8, characterized in that: When the fixed bearing platform (130) contacts the hitching system (202), the first stop portion (121) contacts the centering device (203) to limit the passive descending mechanism (140) from descending; when the movable bearing platform (120) contacts the buffer system (201), the second stop portion (122) contacts the centering device (203) to limit the passive descending mechanism (140) from descending.

10. The car coupler buffer automatic dismounting robot according to claim 8, characterized in that: The top of the first stop portion (121) and the second stop portion (122) is provided with a roller (123); The bottom of the centering device (203) is provided with a support plate (111) fixedly connected with the fixing plate (110), and the roller (123) is below the support plate (111).

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