Turnout sliding bed platen surface machining device and turnout sliding bed platen

Abstract

The utility model discloses a turnout sliding bed platen surface machining device and a turnout sliding bed platen. Comprising a fixing clamp used for supporting and clamping the two opposite sides of a sliding bed platen base body so as to fix the sliding bed platen base body, a mixture conveying assembly used for conveying a mixture of protective gas and a cladding medium to the surface of the sliding bed platen base body, and a laser output assembly used for outputting a laser beam to the surface of the sliding bed platen base body. The movable end of the welding moving assembly is connected with the laser output assembly and the mixture conveying assembly, and the welding moving assembly is used for driving the laser output assembly and the mixture conveying assembly to move synchronously so that a cladding layer can be formed after the cladding medium on the melting sliding bed platen base body is melted. The cladding layer which is high in bonding performance and not prone to falling off is formed on the surface of the sliding bed platen base body through laser cladding, the sliding bed platen base body is effectively protected through the cladding layer, the heat affected zone in the laser cladding process is small, the influence on the base material is reduced, and the defects of pits and air holes are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch part processing technical field, in particular, relate to a switch slide bed platform plate surface processing device. BACKGROUND

[0002] In the field of railway, the slide bed platform plate is an important component part of the switch, and the slide bed platform plate mainly plays the role of supporting the switch rail and pressing the basic rail in the whole length range of the switch rail. However, during the operation of the train, the switch rail needs to be frequently moved on the slide bed platform plate. Since the bottom of the switch rail has a certain roughness, after a long time of operation, scratches of different sizes will be formed on the surface of the slide bed platform plate, which will cause corrosion of the slide bed platform plate in the open environment, thereby affecting the performance of the slide bed platform plate and threatening the stability of the switch operation and the safety of the train operation.

[0003] In order to improve the surface quality of the slide bed platform plate, a high-speed heavy-load switch slide bed platform surface strengthening treatment process is disclosed in Chinese patent application CN115570330A, which fuses the metal ceramic wear-resistant material on the surface of the slide bed platform plate by using the plasma spray welding process after removing the oxide skin on the surface of the slide bed platform plate, so as to form a wear-resistant layer on the surface of the slide bed platform plate. However, the fusion effect between the wear-resistant layer and the substrate is poor, and the wear-resistant layer is easy to fall off under the condition of high impact force or cyclic stress, so the service life of the slide bed platform plate is short. Chinese patent application CN105887583A discloses a forged railway high-speed switch composite slide bed platform, which comprises a base material and a cover material. The base material is a rolled carbon steel plate, and the cover material is a welding wire layer. The welding wire is welded on the base material by using the gas shielded automatic welding process to form a blank. However, the gas shielded welding is easy to form pits or pores on the cover layer, which seriously affects the performance of the slide bed platform plate.

[0004] In summary, the surface quality of the existing slide bed platform plate cannot meet the use requirements. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of switch slide bed platform plate surface processing device and switch slide bed platform to solve the technical problems that the surface quality of existing switch slide bed platform plate is low, service life is short, and there is security risk.

[0006] According to one aspect of the utility model, provide a kind of turnout sliding bed platform plate surface processing device, including the opposite two sides of the fixed clamp for supporting and clamping sliding bed platform base body to fix sliding bed platform base body, the mixture conveying component for conveying the mixture of protective gas and cladding medium to sliding bed platform base body surface, the laser output component for outputting laser beam to sliding bed platform base body surface, and the welding moving component for driving laser output component and mixture conveying component synchronous movement with the movable end being connected with laser output component and mixture conveying component respectively, to make the cladding medium on melting sliding bed platform base body melt and form cladding layer.

[0007] As a further improvement of the above technical solution:

[0008] Further, the mixture conveying component includes a powder feeder for storing and conveying the cladding medium, a gas feeder for storing and conveying the protective gas, and a mixture conveying pipe having input ends connected to the powder feeder and the gas feeder and an output end connected to the welding moving component.

[0009] Further, the powder feeder includes a rotating disc, a storage hopper disposed above the rotating disc for storing and conveying the cladding medium to the rotating disc, a rotating disc driving mechanism having an output end connected to the rotating disc for driving the rotating disc to rotate, a receiving hopper disposed below the rotating disc and connected to the mixture conveying pipe for receiving the cladding medium, and a scraper disposed above the rotating disc and in close contact with the surface of the rotating disc for scraping the cladding medium on the rotating disc into the receiving hopper when the rotating disc rotates.

[0010] Further, the gas feeder includes a gas storage tank for storing the protective gas, and a gas feeder pipe for conveying the protective gas, having an output end connected to the gas outlet of the gas storage tank and an input end connected to the mixture conveying pipe.

[0011] Further, the fixed clamp includes a support base plate for supporting the sliding bed platform base body, and two clamping blocks spaced apart on the support base plate for clamping the opposite two sides of the sliding bed platform base body, respectively.

[0012] Further, a plurality of connection holes one are formed on the support base plate and spaced apart in the horizontal direction on the support base plate, a connection hole two is formed on the clamping block, and the fixed clamp further includes a fixing screw for fixing the clamping block on the support base plate, penetrating through the connection hole two and connected to the connection hole one.

[0013] Further, a plurality of connection holes two are formed on the clamping block and spaced apart thereon, and the distance between adjacent two connection holes two is smaller than the distance between adjacent two connection holes one.

[0014] Further, the laser output component includes a laser generator for generating laser, a transmission optical fiber connected to the laser generator for transmitting laser, and a laser welding head connected to the transmission optical fiber for receiving laser and outputting laser beam.

[0015] Further, the welding moving assembly comprises a welding manipulator, connecting flanges fixedly connected with the movable end of the welding manipulator and the laser welding head respectively, and adjusting connecting pieces for adjusting and fixing the relative positions of the laser welding head and the output end of the mixture conveying assembly, which are connected with the movable end of the welding manipulator and the output end of the mixture conveying assembly respectively.

[0016] According to another aspect of the utility model, a turnout sliding bed platform is also provided, which is processed by the above-mentioned turnout sliding bed platform surface processing device.

[0017] The utility model has the advantages of the following beneficial effects:

[0018] The turnout sliding bed platform surface processing device of the utility model firstly supports and clamps the opposite sides of the sliding bed platform base body by the fixed clamp to fix the sliding bed platform base body, then the mixture conveying assembly conveys the mixture of the protective gas and the cladding medium to the surface of the sliding bed platform base body, at the same time, the laser output assembly outputs the laser beam to the surface of the sliding bed platform base body to form a local molten pool on the surface of the sliding bed platform base body, then the cladding medium on the sliding bed platform base body is melted, and the welding quality is ensured by the protective gas, finally the laser output assembly and the mixture conveying assembly are synchronously moved by the welding moving assembly to make the cladding medium on the sliding bed platform base body melt to form a cladding layer, the surface quality of the sliding bed platform is improved by the cladding layer, and the surface performance of the sliding bed platform is enhanced; the cladding layer with strong bonding performance and not easy to fall off is formed on the surface of the sliding bed platform base body by laser cladding, the effective protection of the sliding bed platform base body is realized by the cladding layer, the heat affected zone in the laser cladding process is small, the influence on the base material is reduced, the defects of dents and pores do not appear, compared with the prior art, the surface quality of the sliding bed platform is improved, the service life of the sliding bed platform is ensured, the safety hazard is eliminated, the practicability is strong, and the utility model is suitable for being widely promoted and applied.

[0019] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings are provided to explain the present application and are not intended to limit the present application. In the drawings:

[0021] Figure 1 is the partial structure schematic view of the turnout sliding bed platform surface processing device of the preferred embodiment of the utility model;

[0022] Figure 2 is the structure schematic view of the mixture conveying assembly in the turnout sliding bed platform plate surface processing device of the preferred embodiment of the utility model;

[0023] Figure 3 is the structure schematic view of the fixed clamp in the turnout sliding bed platform plate surface processing device of the preferred embodiment of the utility model;

[0024] Figure 4 is the structure schematic view of the turnout sliding bed platform of the preferred embodiment of the utility model.

[0025] Legend:

[0026] 100, fixed clamp;110, support bottom plate;111, connecting hole one;120, clamp block;121, connecting hole two;130, fixed screw;200, mixture conveying assembly;210, powder feeding part;211, rotating disc;212, storage hopper;213, driving rotating mechanism;214, receiving hopper;215, scraper;220, gas feeding part;230, mixed conveying pipe;300, laser output assembly;310, laser generator;320, transmission optical fiber;330, laser welding head;400, welding moving assembly;410, welding manipulator;420, connecting flange;500, sliding bed platform base body;600, cladding layer. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.

[0028] As Figures 1-3 shown, the turnout sliding bed platform plate surface processing device of the preferred embodiment of the utility model, including for supporting and clamping the relative two sides of sliding bed platform base body 500 to fixed sliding bed platform base body 500's fixed clamp 100, for conveying the mixture of protective gas and cladding medium to the surface of sliding bed platform base body 500's mixture conveying assembly 200, for the output laser beam of the surface of sliding bed platform base body 500's laser output assembly 300, and the movable end is connected with laser output assembly 300 and mixture conveying assembly 200 respectively for driving laser output assembly 300 and mixture conveying assembly 200 synchronous movement, to make the cladding medium on the melting sliding bed platform base body 500 melt and form the cladding layer 600 of welding moving assembly 400.

[0029] As Figures 1-3As shown, specifically, the turnout slide plate surface processing device of this utility model first uses a fixing clamp 100 to support and clamp the opposite sides of the slide plate base 500 to fix the slide plate base 500. Then, a mixture of protective gas and cladding medium is conveyed to the surface of the slide plate base 500 through a mixture conveying component 200. At the same time, a laser beam is output to the surface of the slide plate base 500 through a laser output component 300 to form a local molten pool on the surface of the slide plate base 500, thereby melting the cladding medium on the slide plate base 500. The protective gas is used to improve the welding quality. Finally, the welding moving component 400 drives the laser output component 300 and the mixture conveying component 200. Synchronous movement allows the cladding medium on the slide plate substrate 500 to melt and form a cladding layer 600. The cladding layer 600 improves the surface quality and enhances the surface performance of the slide plate. This solution uses laser cladding to form a strong and non-detachable cladding layer 600 on the surface of the slide plate substrate 500, effectively protecting the slide plate substrate 500. Furthermore, the heat-affected zone during laser cladding is small, reducing the impact on the substrate and preventing defects such as pits and pores. Compared to existing technologies, this solution improves the surface quality of the slide plate, ensures its service life, eliminates safety hazards, and is highly practical and suitable for widespread promotion and application.

[0030] It should be understood that the protective gas can also serve to transport the cladding medium.

[0031] Optionally, the cladding medium is a high-entropy alloy powder with high hardness and strong corrosion resistance. Therefore, the cladding layer 600 formed by the high-entropy alloy powder can greatly improve the surface quality of the slide plate and enhance its surface performance.

[0032] It should be understood that the main functions of shielding gas in laser welding are: to prevent workpiece oxidation, reduce spatter, improve laser utilization, and protect the lens, thereby achieving the goal of improving welding quality.

[0033] like Figure 2 As shown, in this embodiment, the mixture conveying assembly 200 includes a powder feeding component 210 for storing and conveying the cladding medium, a gas supply component 220 for storing and conveying the protective gas, and a mixture conveying pipe 230 whose input end is connected to the powder feeding component 210 and the gas supply component 220 respectively and whose output end is connected to the welding moving assembly 400.

[0034] like Figure 2As shown, specifically, the cladding medium is stored by the powder feeding member 210, the shielding gas is stored by the gas feeding member 220, the cladding medium and the shielding gas are respectively delivered into the mixed delivery pipe 230 by the powder feeding member 210 and the gas feeding member 220 during laser cladding, the cladding medium is delivered onto the slide bed base substrate 500 by the shielding gas, and the welding quality is improved by the shielding gas during the laser cladding process.

[0035] As shown in the embodiment, the powder feeding member 210 includes a rotating disc 211, a storage hopper 212 arranged above the rotating disc 211 and used for storing and delivering the cladding medium onto the rotating disc 211, a driving rotating mechanism 213 with an output end connected to the rotating disc 211 and used for driving the rotating disc 211 to rotate, a receiving hopper 214 arranged below the rotating disc 211 and connected to the mixed delivery pipe 230 and used for receiving the cladding medium, and a scraper 215 arranged above the rotating disc 211 and in close contact with the surface of the rotating disc 211 and used for scraping the cladding medium on the rotating disc 211 into the receiving hopper 214 when the rotating disc 211 rotates. Figure 2 As shown in the embodiment, specifically, the cladding medium is stored by the storage hopper 212 and delivered onto the rotating disc 211, the rotating disc 211 is driven to rotate by the driving rotating mechanism 213, the cladding medium on the rotating disc 211 is scraped into the receiving hopper 214 by the scraper 215, and the cladding medium is delivered into the mixed delivery pipe 230 by the receiving hopper 214. During the powder feeding process, the powder feeding amount can be adjusted by adjusting the rotating speed of the rotating disc 211, or the height of the storage hopper 212 and the rotating disc 211 and the size of the outlet of the storage hopper 212 are simultaneously adjusted to make the adjustment of the powder feeding amount reach a wider range. Alternatively, the driving rotating mechanism 213 is a combination of a motor and a speed reducer.

[0036] Figure 2 As shown in the embodiment, specifically, the cladding medium is stored by the storage hopper 212 and delivered onto the rotating disc 211, the rotating disc 211 is driven to rotate by the driving rotating mechanism 213, the cladding medium on the rotating disc 211 is scraped into the receiving hopper 214 by the scraper 215, and the cladding medium is delivered into the mixed delivery pipe 230 by the receiving hopper 214. During the powder feeding process, the powder feeding amount can be adjusted by adjusting the rotating speed of the rotating disc 211, or the height of the storage hopper 212 and the rotating disc 211 and the size of the outlet of the storage hopper 212 are simultaneously adjusted to make the adjustment of the powder feeding amount reach a wider range. Alternatively, the driving rotating mechanism 213 is a combination of a motor and a speed reducer.

[0037] As shown in the embodiment, specifically, the cladding medium is stored by the storage hopper 212 and delivered onto the rotating disc 211, the rotating disc 211 is driven to rotate by the driving rotating mechanism 213, the cladding medium on the rotating disc 211 is scraped into the receiving hopper 214 by the scraper 215, and the cladding medium is delivered into the mixed delivery pipe 230 by the receiving hopper 214. During the powder feeding process, the powder feeding amount can be adjusted by adjusting the rotating speed of the rotating disc 211, or the height of the storage hopper 212 and the rotating disc 211 and the size of the outlet of the storage hopper 212 are simultaneously adjusted to make the adjustment of the powder feeding amount reach a wider range. Alternatively, the driving rotating mechanism 213 is a combination of a motor and a speed reducer. Figure 2 As shown in the embodiment, specifically, the cladding medium is stored by the storage hopper 212 and delivered onto the rotating disc 211, the rotating disc 211 is driven to rotate by the driving rotating mechanism 213, the cladding medium on the rotating disc 211 is scraped into the receiving hopper 214 by the scraper 215, and the cladding medium is delivered into the mixed delivery pipe 230 by the receiving hopper 214. During the powder feeding process, the powder feeding amount can be adjusted by adjusting the rotating speed of the rotating disc 211, or the height of the storage hopper 212 and the rotating disc 211 and the size of the outlet of the storage hopper 212 are simultaneously adjusted to make the adjustment of the powder feeding amount reach a wider range. Alternatively, the driving rotating mechanism 213 is a combination of a motor and a speed reducer.

[0038] Figure 3 As shown in the embodiment, specifically, the cladding medium is stored by the storage hopper 212 and delivered onto the rotating disc 211, the rotating disc 211 is driven to rotate by the driving rotating mechanism 213, the cladding medium on the rotating disc 211 is scraped into the receiving hopper 214 by the scraper 215, and the cladding medium is delivered into the mixed delivery pipe 230 by the receiving hopper 214. During the powder feeding process, the powder feeding amount can be adjusted by adjusting the rotating speed of the rotating disc 211, or the height of the storage hopper 212 and the rotating disc 211 and the size of the outlet of the storage hopper 212 are simultaneously adjusted to make the adjustment of the powder feeding amount reach a wider range. Alternatively, the driving rotating mechanism 213 is a combination of a motor and a speed reducer. ​​

[0039] As Figure 3 shown, in the embodiment, a plurality of connecting holes one 111 are arranged on the support bottom plate 110, the plurality of connecting holes one 111 are arranged on the support bottom plate 110 in the horizontal direction, a connecting hole two 121 is arranged on the clamping block 120, and the fixing clamp 100 further comprises a fixing screw 130 penetrating the connecting hole two 121 and connected with the connecting hole one 111, and used for fixing the clamping block 120 on the support bottom plate 110. Specifically, the fixing screw 130 penetrates the connecting hole two 121 and is connected with the connecting hole one 111, so as to fix the two clamping blocks 120 on the two connecting holes one 111 respectively, and the interval of the two clamping blocks 120 is adjusted by selecting two connecting holes one 111 with different intervals, so as to realize the fixation of the slide bed plate base body 500 with different specifications and sizes, thereby greatly improving the versatility of the fixing clamp 100.

[0040] As Figure 3 shown, in the embodiment, a plurality of connecting holes two 121 are arranged on the clamping block 120, the plurality of connecting holes two 121 are arranged on the clamping block 120 in the interval, and the interval of the adjacent two connecting holes two 121 is smaller than the interval of the adjacent two connecting holes one 111. Specifically, the fixing screw 130 penetrates the connecting hole two 121 and is connected with the connecting hole one 111, and since the interval of the adjacent two connecting holes two 121 is smaller than the interval of the adjacent two connecting holes one 111, the interval of the two clamping blocks 120 can be further adjusted, so as to realize the reliable clamping and fixation of the slide bed plate base body 500 by the two clamping blocks 120.

[0041] As Figure 1 shown, in the embodiment, the laser output assembly 300 comprises a laser generator 310 for generating laser, a transmission optical fiber 320 connected with the laser generator 310 and used for transmitting laser, and a laser welding head 330 connected with the transmission optical fiber 320 and used for receiving laser and outputting laser beam. Specifically, during laser cladding, the laser generator 310 generates laser, and then the laser is transmitted to the laser welding head 330 through the transmission optical fiber 320, so as to output laser beam to the slide bed plate base body 500 through the laser welding head 330, thereby melting the cladding medium on the slide bed plate base body 500.

[0042] As Figure 1As shown, in this embodiment, the welding moving assembly 400 includes a welding robot 410, a connecting flange 420 fixedly connected to the movable end of the welding robot 410 and the laser welding head 330 respectively, and an adjusting connector (not shown) connected to the movable end of the welding robot 410 and the output end of the mixture conveying component respectively for adjusting and fixing the relative position of the laser welding head 330 and the output end of the mixture conveying component 200. Specifically, the welding robot 410 is connected to the laser welding head 330 through the connecting flange 420 and to the mixture conveying component 200 through the adjusting connector. After the adjusting connector adjusts and fixes the relative position of the output ends of the laser welding head 330 and the mixture conveying component 200, the welding robot 410 drives the laser welding head 330 and the mixture conveying component 200 to move synchronously, thereby forming a cladding layer 600 on the slide plate substrate 500.

[0043] like Figure 4 As shown, the turnout slide plate of this embodiment is processed using the aforementioned turnout slide plate surface processing device. The turnout slide plate includes a slide plate substrate 500 and a cladding layer 600 bonded and compatiblely connected to the slide plate substrate 500. Specifically, the turnout slide plate is obtained by processing using the aforementioned turnout slide plate surface processing device, so as to form a cladding layer 600 with strong bonding performance and not easy to fall off on the surface of the slide plate substrate 500. The cladding layer 600 effectively protects the slide plate substrate 500. Moreover, the heat-affected zone during the laser cladding process is small, the impact on the substrate is reduced, and defects such as pits and pores will not occur. Compared with the prior art, the surface quality of the slide plate is improved, the service life of the slide plate is guaranteed, safety hazards are eliminated, and it is highly practical and suitable for widespread promotion and application.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for surfacing a turnout bed slab, characterized in that, The welding device comprises a fixing clamp (100) for supporting and clamping opposite sides of a slide bed plate base body (500) to fix the slide bed plate base body (500), a mixture conveying assembly (200) for conveying a mixture of a protective gas and a cladding medium to a surface of the slide bed plate base body (500), a laser output assembly (300) for outputting a laser beam to the surface of the slide bed plate base body (500), and a welding moving assembly (400) having movable ends connected with the laser output assembly (300) and the mixture conveying assembly (200) respectively and used for driving the laser output assembly (300) and the mixture conveying assembly (200) to move synchronously so that the cladding medium on the slide bed plate base body (500) is melted to form a cladding layer (600).

2. The switch bed slab surfacing apparatus of claim 1 wherein, The mixture conveying assembly (200) comprises a powder feeding member (210) for storing and conveying the cladding medium, a gas feeding member (220) for storing and conveying the protective gas, and a mixture conveying pipe (230) having input ends connected with the powder feeding member (210) and the gas feeding member (220) respectively and an output end connected with the welding moving assembly (400).

3. The switch bed slab surfacing apparatus of claim 2 wherein, The powder feeding member (210) comprises a rotating disc (211), a storage hopper (212) arranged above the rotating disc (211) and used for storing and conveying the cladding medium to the rotating disc (211), a rotating disc driving mechanism (213) having an output end connected with the rotating disc (211) and used for driving the rotating disc (211) to rotate, a receiving hopper (214) arranged below the rotating disc (211) and connected with the mixture conveying pipe (230) and used for receiving the cladding medium, and a scraper (215) arranged above the rotating disc (211) and in close contact with a surface of the rotating disc (211) and used for scraping the cladding medium on the rotating disc (211) into the receiving hopper (214) when the rotating disc (211) rotates.

4. The switch bed slab surfacing apparatus of claim 2 wherein, The gas feeding member (220) comprises a gas storage tank for storing the protective gas and a gas conveying pipe for conveying the protective gas and having an output end connected with an output port of the gas storage tank and an input end connected with the input end of the mixture conveying pipe (230).

5. A switch bed slab surfacing apparatus according to any one of claims 1-4, wherein, The fixing clamp (100) comprises a supporting bottom plate (110) for supporting the slide bed plate base body (500) and two clamping blocks (120) arranged on the supporting bottom plate (110) and used for clamping opposite sides of the slide bed plate base body (500) respectively.

6. The switch bed slab surfacing apparatus of claim 5 wherein, The supporting bottom plate (110) is provided with a plurality of first connecting holes (111) arranged on the supporting bottom plate (110) in a horizontal direction, the clamping block (120) is provided with a second connecting hole (121), and the fixing clamp (100) further comprises a fixing screw (130) penetrating through the second connecting hole (121) and connected with the first connecting hole (111) and used for fixing the clamping block (120) on the supporting bottom plate (110).

7. The switch bed slab surfacing apparatus of claim 6 wherein, The clamping block (120) is provided with a plurality of second connecting holes (121) arranged thereon, and a distance between adjacent two second connecting holes (121) is smaller than a distance between adjacent two first connecting holes (111).

8. A switch bed slab surfacing apparatus according to any one of claims 1-4, wherein, The laser output assembly (300) comprises a laser generator (310) for generating laser, a transmission optical fiber (320) connected with the laser generator (310) for transmitting the laser, and a laser welding head (330) connected with the transmission optical fiber (320) for outputting a laser beam after receiving the laser.

9. The switch bed slab surfacing apparatus of claim 8 wherein, The welding moving assembly (400) comprises a welding manipulator (410), a connecting flange (420) fixedly connected with the movable end of the welding manipulator (410) and the laser welding head (330) respectively, and an adjusting connecting piece for adjusting and fixing the relative positions of the laser welding head (330) and the output end of the mixture conveying assembly (200) connected with the movable end of the welding manipulator (410) and the output end of the mixture conveying piece respectively.

10. A switch bed slab, characterized by The switch sliding bed slab surface processing device is used for processing, and the switch sliding bed slab comprises a sliding bed slab base body (500) and a cladding layer (600) which is bonded and compatibly connected with the sliding bed slab base body (500).

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