Railway vehicle end chassis bending device

Abstract

The utility model relates to the technical field of railway vehicle chassis bending, and provides a railway vehicle end chassis bending device which comprises a base. The fixed frame is fixedly connected to one side of the top end of the base; the controller is fixedly connected to the upper end of one side of the fixing frame; the hydraulic cylinder is fixedly connected to the lower end of one side of the fixing frame and the other side of the top end of the fixing frame, and the output end of the hydraulic cylinder penetrates through the fixing frame and is fixedly connected with a mounting seat; the bending block is movably connected to one end of the mounting seat; the fixed seat is fixedly connected to the other side of the top end of the base; the limiting groove is formed in the surface of the fixed seat; and through the arranged centering assembly, the distance between the upper portions in the limiting groove can be changed, the bending requirements of steel of different widths can be met, then the steel of different widths can be located on the transverse central axis of the limiting groove, the situation that the subsequent bending precision is reduced due to the fact that the steel is obliquely placed is avoided, and the practicability of the steel bending device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the bending of the underframe of rail vehicles, and particularly relates to a bending device for the end underframe of rail vehicles. Background Art

[0002] A rail vehicle refers to a vehicle that must run along a dedicated track. The underframe of a rail vehicle is the basis of the car body, supporting the entire weight of the car body and the load. During the production and processing of the overall underframe, it is necessary to bend some underframe steel materials, so corresponding bending devices are required.

[0003] After retrieval, the existing patent (publication number: CN211413264U) discloses a bending device for a vehicle underframe, including a base. A support table is installed at the top of the base. Two first brackets are symmetrically installed at the top of the support table. A steel pipe is clamped at the top of the support table. Two second brackets are symmetrically and fixedly installed at the top of the base. A third hydraulic cylinder is fixedly installed on one side of the two second brackets close to the support table. One end of the two first brackets and the two second brackets away from the base are jointly and fixedly installed with a top plate. A first hydraulic cylinder is installed at one end of the top plate close to the base. A second hydraulic cylinder is installed at one end of the top plate close to the base. The utility model provides a bending device for a vehicle underframe. The bending device is provided with a limiting groove, which can ensure that the steel pipe is vertical after bending, effectively improving the bending effect. At the same time, a flame spraying mechanism is provided, which can heat the steel pipe and make it easier to bend, effectively improving the working efficiency.

[0004] However, in the above solution, the bending of the steel material is limited by the limiting groove. However, the widths of the steel materials of different vehicle underframes are also different. If the width of the limiting groove is large, the steel material may not be horizontally located on the central axis of the groove in the groove, and the bending process of the inclined steel material will make the bending part not perpendicular and inclined, and then it needs to be adjusted, reducing the bending quality and the overall working efficiency of the bending process.

[0005] In view of this, the utility model proposes a bending device for the end underframe of rail vehicles. Summary of the Utility Model

[0006] The utility model proposes a bending device for the end underframe of rail vehicles, which solves the problem in the related technology that it is inconvenient to limit and center steel materials with different widths.

[0007] The technical solution of the present utility model is as follows: A bending device for the end underframe of a rail vehicle, comprising a base; a fixed frame fixedly connected to one side of the top of the base; a controller fixedly connected to the upper end of one side of the fixed frame; hydraulic cylinders fixedly connected to the lower end of one side of the fixed frame and the other side of the top of the fixed frame, the output end of the hydraulic cylinder passing through the fixed frame and fixedly connected with a mounting seat; a bending block movably connected to one end of the mounting seat; a mounting component assembled on the mounting seat, the mounting component being used to realize the quick disassembly and assembly between the bending block and the mounting seat; a pressing component assembled on the other side of the top of the fixed frame, the pressing component being used to press and fix the steel; a fixed seat fixedly connected to the other side of the top of the base; a limiting groove opened on the surface of the fixed seat; a centering component assembled inside the limiting groove, the centering component being used to center and limit the steel.

[0008] The centering component includes: reserved grooves stuck at the upper ends of both ends of the limiting groove; a centering plate movably connected inside the reserved grooves; a centering groove opened at the upper end inside the fixed seat; a left-right threaded rod rotatably connected to the inner wall of the centering groove, the two ends of the surface of the left-right threaded rod being threadedly connected with threaded blocks, the top ends of the threaded blocks being fixedly connected with the bottom end of the centering plate; a turning handle rotatably connected to the upper end of the front surface of the fixed seat, one end of the turning handle being fixedly connected with one end of the left-right threaded rod.

[0009] Preferably, the cross-sectional shapes of the threaded blocks and the centering groove are convex, and the threaded blocks are symmetrically distributed about the horizontal central axis of the centering groove.

[0010] Preferably, sliding grooves are opened on both sides of the inner top wall of the limiting groove, and sliding blocks fixedly connected to both sides of the bottom end of the centering plate are slidably matched with the inside of the sliding grooves.

[0011] Preferably, anti-slip lines are equally spaced at one end of the centering plate, and the top view shape of the anti-slip lines is arc-shaped.

[0012] Preferably, the mounting component includes: a clamping groove opened at the bottom end of the mounting seat; a mounting groove opened on one side of the mounting seat; a mounting rod movably connected inside the mounting groove, one end of the mounting rod being fixedly connected with a pull rod extending outside the mounting seat; a mounting spring wound around the surface of the pull rod, both ends of the mounting spring being fixedly connected with one side of the mounting rod and the inner wall of the mounting groove respectively; a clamping block fixedly connected to one end of the bending block; a mounting hole opened on one side of the clamping block.

[0013] Preferably, a clamping structure is formed between the inside of the clamping block and the clamping groove, and the cross-sectional shapes of the clamping groove and the clamping block are inverted convex.

[0014] Preferably, a clamping structure is formed between one end of the mounting rod and the inside of the mounting hole, and the length of the mounting rod is less than the depth inside the mounting groove.

[0015] Preferably, the pressing assembly includes: a pneumatic telescopic rod fixedly connected to the other side of the top end of the fixed frame; a pressing plate movably connected to the other side of the inner top wall of the fixed frame, and the top end of the pressing plate is fixedly connected to the output end of the pneumatic telescopic rod.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, through the arranged centering assembly and the limiting groove, the steel is placed inside the limiting groove, and then the turning handle is rotated to drive the rotation of the positive and negative threaded rod, so that the threaded block slides to drive the synchronous movement of the two centering plates, thereby the steel can be centered and clamped, realizing the centered placement of steel with different widths, avoiding the steel being placed obliquely inside the limiting groove, resulting in the inclination of the bending part, thus affecting its bending quality. At the same time, the steel can be clamped and fixed, further ensuring the stability of the steel during bending, ensuring the bending quality, and improving its practicability;

[0018] 2. In the present utility model, through the arranged installation assembly, by using the engagement of the clamping block with the inside of the clamping groove and the elastic force of the installation spring, the installation rod slides and snaps into the installation hole, realizing the firm engagement of the clamping block with the inside of the clamping groove, achieving the quick disassembly and assembly between the bending block and the installation seat, avoiding the serious wear of the bending block and affecting the bending quality, and avoiding the bending block being too small, resulting in a small contact area with the steel surface and excessive deformation here, thus affecting the bending quality, and improving its practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further elaborates the present utility model in detail in conjunction with the drawings and specific embodiments.

[0020] Figure 1 is the front view structural schematic diagram of the present utility model;

[0021] Figure 2 is the bottom view structural schematic diagram of the present utility model;

[0022] Figure 3 is the three-dimensional structural schematic diagram of the fixed seat of the present utility model;

[0023] Figure 4 is the enlarged sectional structural schematic diagram of the centering assembly of the present utility model;

[0024] Figure 5 is the enlarged sectional structural schematic diagram of the installation assembly of the present utility model;

[0025] Figure 6 is of the present utility model Figure 5 enlarged structural schematic diagram at A.

[0026] In the figure: 1. Compression assembly; 101. Compression plate; 102. Pneumatic telescopic rod; 2. Hydraulic cylinder; 3. Installation assembly; 301. Card slot; 302. Card block; 303. Installation hole; 304. Installation rod; 305. Installation spring; 306. Pull rod; 307. Installation groove; 4. Fixed frame; 5. Controller; 6. Bending block; 7. Base; 8. Fixed seat; 9. Centering assembly; 901. Rotating handle; 902. Reserved slot; 903. Anti-slip pattern; 904. Slide groove; 905. Slide block; 906. Threaded block; 907. Centering groove; 908. Positive and negative threaded rod; 909. Centering plate; 10. Limit slot; 11. Installation seat. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] The preferred embodiment of the end frame bending device for rail vehicles provided by the present invention is as Figures 1 to 6 shown: An end frame bending device for rail vehicles includes a base 7; a fixed frame 4 fixedly connected to one side of the top end of the base 7; a controller 5 fixedly connected to the upper end of one side of the fixed frame 4; hydraulic cylinders 2 fixedly connected to the lower end of one side of the fixed frame 4 and the other side of the top end of the fixed frame 4, and the output end of the hydraulic cylinder 2 penetrates through the fixed frame 4 and is fixedly connected to an installation seat 11; a bending block 6 movably connected to one end of the installation seat 11; an installation assembly 3 assembled on the installation seat 11, and the installation assembly 3 is used to realize the quick disassembly and assembly between the bending block 6 and the installation seat 11; a compression assembly 1 assembled on the other side of the top end of the fixed frame 4, and the compression assembly 1 is used to press and fix the steel; a fixed seat 8 fixedly connected to the other side of the top end of the base 7; a limit slot 10 opened on the surface of the fixed seat 8; a centering assembly 9 assembled inside the limit slot 10, and the centering assembly 9 is used to center and limit the steel.

[0030] The centering assembly 9 includes: reserved slots 902 stuck at the upper ends of both ends of the limit slot 10; a centering plate 909 movably connected inside the reserved slots 902; a centering groove 907 opened at the upper end inside the fixed seat 8; a positive and negative threaded rod 908 rotatably connected to the inner wall of the centering groove 907, and threaded blocks 906 are threadedly connected to both ends of the surface of the positive and negative threaded rod 908, and the top ends of the threaded blocks 906 are fixedly connected to the bottom end of the centering plate 909; a rotating handle 901 rotatably connected to the upper end of the front surface of the fixed seat 8, and one end of the rotating handle 901 is fixedly connected to one end of the positive and negative threaded rod 908.

[0031] It should be noted that there are still certain deficiencies in the existing end underframe bending device for rail vehicles during actual use. The widths of the steel materials of different vehicle underframes are also different. If the width of the limiting groove 10 is relatively large, the steel material may not be horizontally located on the central axis of the groove, and when the inclined steel material is bent and processed, the bent part will not be perpendicular enough and will be inclined. Furthermore, adjustment is required, reducing the bending quality and the working efficiency of the overall bending process.

[0032] In this embodiment, the steel material is placed inside the limiting groove 10. Then, the turning handle 901 is rotated to drive the rotation of the left - right threaded rod 908. By using the threaded fit between the left - right threaded rod 908 and the threaded block 906, the threaded block 906 slides to drive the synchronous movement of the two centering plates 909, thereby enabling the centering and clamping of the steel material, achieving the centering placement of steel materials with different widths, and preventing the steel material from being placed obliquely inside the limiting groove 10, which may cause the bent part to be inclined and thus affect its bending quality. After that, the top of the steel material is pressed and fixed by the pressing component 1. Then, the hydraulic cylinder 2 at the top of the fixed frame 4 is started to lower the bending block 6 to perform a preliminary bend on one end of the steel material. Then, the hydraulic cylinder 2 on one side of the fixed frame 4 is started, and the bending block 6 performs a secondary bend on one end of the steel material, thereby realizing the ninety - degree bending process of the steel material, improving its practicability. At the same time, the installation component 3 can be used to achieve the rapid disassembly and assembly between the bending block 6 and the mounting seat 11, enabling the replacement of the bending block 6 when the bending block 6 is worn or damaged or its size is too small, resulting in local deformation of the steel material due to the small contact area with the steel material.

[0033] In a further preferred embodiment of the present utility model, the longitudinal cross - sectional shapes of the threaded block 906 and the centering groove 907 are convex, and the threaded blocks 906 are symmetrically distributed about the horizontal central axis of the centering groove 907.

[0034] In this embodiment, by using the convex - shaped threaded block 906 and centering groove 907, the threaded block 906 can move more smoothly and synchronously.

[0035] In a further preferred embodiment of the present utility model, sliding grooves 904 are provided on both sides of the inner top wall of the limiting groove 10, and sliding blocks 905 fixedly connected to both sides of the bottom end of the centering plate 909 are slidably engaged with the inside of the sliding grooves 904.

[0036] In this embodiment, by using the sliding of the sliding block 905 inside the sliding groove 904, the smoothness of the sliding of the centering plate 909 is improved.

[0037] In a further preferred embodiment of the present utility model, anti - slip lines 903 are equidistantly arranged at one end of the centering plate 909, and the shape of the anti - slip lines 903 in the top view is arc - shaped.

[0038] In this embodiment, the arc-shaped anti-slip pattern 903 is used to improve the anti-slip firmness of the centering plate 909 when clamping both ends of the steel.

[0039] Embodiment 2

[0040] On the basis of Embodiment 1, a preferred embodiment of the end frame bending device of the rail vehicle provided by the present utility model is as Figures 1 to 6 shown: The installation component 3 includes: a card slot 301 opened at the bottom end of the installation seat 11; an installation groove 307 opened on one side of the installation seat 11; an installation rod 304 movably connected inside the installation groove 307, one end of the installation rod 304 is fixedly connected with a pull rod 306 extending outside the installation seat 11; an installation spring 305 wound around the surface of the pull rod 306, and both ends of the installation spring 305 are respectively fixedly connected with one side of the installation rod 304 and the inner wall of the installation groove 307; a clamping block 302 fixedly connected to one end of the bending block 6; an installation hole 303 opened on one side of the clamping block 302.

[0041] In this embodiment, when the bending block 6 is worn or damaged or its size is too small, resulting in too small a contact area with the steel and causing local deformation of the steel, the pull rod 306 can be pulled to drive the installation rod 304 to slide and compress the installation spring 305 until it completely disengages from the inside of the installation hole 303. Then, the bending block 6 is pulled to make the clamping block 302 completely disengage from the inside of the card slot 301, realizing the disassembly of the bending block 6. When installing, first pull the pull rod 306 to drive the installation rod 304 to slide until it completely enters the inside of the installation groove 307, then snap the clamping block 302 into the inside of the card slot 301, and then release the pull rod 306. Using the elastic force of the installation spring 305, the installation rod 304 slides and snaps into the inside of the installation hole 303, realizing the firm clamping of the clamping block 302 with the inside of the card slot 301, and realizing the quick disassembly and assembly between the bending block 6 and the installation seat 11.

[0042] In a further preferred embodiment of the present utility model, a clamping structure is formed between the inside of the clamping block 302 and the card slot 301, and the cross-sectional shapes of the card slot 301 and the clamping block 302 are inverted convex shapes.

[0043] In this embodiment, the clamping of the inverted convex-shaped clamping block 302 with the inside of the card slot 301 is used to improve the firmness of the preliminary clamping and installation between the bending block 6 and the installation seat 11.

[0044] In a further preferred embodiment of the present utility model, a clamping structure is formed between one end of the installation rod 304 and the inside of the installation hole 303, and the length of the installation rod 304 is less than the depth inside the installation groove 307.

[0045] In this embodiment, the clamping of one end of the installation rod 304 with the inside of the installation hole 303 is used to ensure the firmness of the clamping of the clamping block 302 with the inside of the card slot 301.

[0046] In a further preferred embodiment of the utility model, the clamping assembly 1 includes: a pneumatic telescopic rod 102 fixedly connected to the other side of the top of the fixing frame 4; a clamping plate 101 movably connected to the other side of the inner top wall of the fixing frame 4, and the top of the clamping plate 101 is fixedly connected to the output end of the pneumatic telescopic rod 102.

[0047] In this embodiment, the pneumatic telescopic rod 102 is activated to lower the pressing plate 101 to press and fix the top end of the steel material, thereby preventing the other end of the steel material from tilting during bending, thereby facilitating the stable bending operation of the steel material.

[0048] In summary, the steel is clamped and fixed by the clamping component 1, and then the steel is clamped and centered by the centering component 9, so that the steel is more stable when bent, and the steel is prevented from being tilted when placed inside the limiting groove 10, causing the bending part to tilt, thereby affecting its bending quality. At the same time, the installation component 3 is used to achieve rapid disassembly and assembly between the bending block 6 and the mounting seat 11, so as to avoid severe wear of the bending block 6 and affect the bending quality, and to avoid the bending block 6 being too small, resulting in a small contact area with the steel surface, causing excessive deformation here and affecting the bending quality.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An end underframe bending device for rail vehicles, characterized in that, Comprising: A base (7); A fixing frame (4) fixedly connected to one side of the top end of the base (7); A controller (5) fixedly connected to the upper end of one side of the fixing frame (4); A hydraulic cylinder (2) fixedly connected to the lower end of one side of the fixing frame (4) and the other side of the top end of the fixing frame (4), and the output end of the hydraulic cylinder (2) penetrates the fixing frame (4) and is fixedly connected with a mounting seat (11); A bending block (6) movably connected to one end of the mounting seat (11); A mounting component (3) assembled on the mounting seat (11), and the mounting component (3) is used to realize the quick disassembly and assembly between the bending block (6) and the mounting seat (11); A pressing component (1) assembled on the other side of the top end of the fixing frame (4), and the pressing component (1) is used to press and fix the steel; A fixing seat (8) fixedly connected to the other side of the top end of the base (7); A limiting groove (10) opened on the surface of the fixing seat (8); A centering component (9) assembled inside the limiting groove (10), and the centering component (9) is used to center and limit the steel; The centering component (9) includes: A reserved groove (902) stuck at the upper ends of both ends of the limiting groove (10); A centering plate (909) movably connected inside the reserved groove (902); A centering groove (907) opened at the upper end inside the fixing seat (8); A left - right threaded rod (908) rotatably connected to the inner wall of the centering groove (907), and both ends of the surface of the left - right threaded rod (908) are threadedly connected with threaded blocks (906), and the top end of the threaded block (906) is fixedly connected to the bottom end of the centering plate (909); A turning handle (901) rotatably connected to the upper end of the front surface of the fixing seat (8), and one end of the turning handle (901) is fixedly connected to one end of the left - right threaded rod (908).

2. The bending device for the end underframe of a rail vehicle according to claim 1, wherein, The cross - sectional shape of the threaded block (906) and the centering groove (907) is convex, and the threaded blocks (906) are symmetrically distributed about the horizontal central axis of the centering groove (907).

3. The bending device for the end underframe of a rail vehicle according to claim 1, characterized in that, Sliding grooves (904) are opened on both sides of the inner top wall of the limiting groove (10), and sliding blocks (905) fixedly connected to both sides of the bottom end of the centering plate (909) are slidably matched with the inside of the sliding grooves (904).

4. The bending device for the end underframe of a rail vehicle according to claim 1, wherein Anti - slip lines (903) are equally spaced on one end of the centering plate (909), and the shape of the anti - slip lines (903) in the top view is arc - shaped.

5. A bending device for the end underframe of a rail vehicle according to claim 1, characterized in that, The mounting component (3) includes: A clamping groove (301) opened at the bottom end of the mounting seat (11); A mounting groove (307) opened on one side of the mounting seat (11); A mounting rod (304) movably connected inside the mounting groove (307), and one end of the mounting rod (304) is fixedly connected with a pull rod (306) extending outside the mounting seat (11); A mounting spring (305) wound around the surface of the pull rod (306), and both ends of the mounting spring (305) are respectively fixedly connected to one side of the mounting rod (304) and the inner wall of the mounting groove (307); A clamping block (302) fixedly connected to one end of the bending block (6); A mounting hole (303) opened on one side of the clamping block (302).

6. The bending device for the end underframe of a rail vehicle according to claim 5, characterized in that, A clamping structure is formed between the clamping block (302) and the inside of the clamping groove (301), and the longitudinal cross-sectional shapes of the clamping groove (301) and the clamping block (302) are reverse convex shapes.

7. The bending device for the end underframe of a rail vehicle according to claim 5, characterized in that A clamping structure is formed between one end of the mounting rod (304) and the inside of the mounting hole (303), and the length of the mounting rod (304) is less than the depth inside the mounting groove (307).

8. The bending device for the end underframe of a rail vehicle according to claim 1, wherein The pressing assembly (1) includes: A pneumatic telescopic rod (102) fixedly connected to the other side of the top end of the fixed frame (4); A pressing plate (101) movably connected to the other side of the inner top wall of the fixed frame (4), and the top end of the pressing plate (101) is fixedly connected to the output end of the pneumatic telescopic rod (102).

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