Auxiliary device special for assembly welding of railway wagon rotating lever mechanism

Abstract

The utility model discloses a special auxiliary device for assembly welding of a rotary lever mechanism of a railway wagon, the rotary lever mechanism consists of a front lever hinge seat, a rotary lever and a rear lever U-shaped seat, and the welding auxiliary device is used for assembly welding of the rear lever U-shaped seat and consists of an arch-shaped arm, a support, a handle, a connecting plate and an adjusting bolt; the arch-shaped arm is of a rotatable structure; the support is used for connecting and fixing the auxiliary device and the rotary lever mechanism and comprises a front support and a rear support; the handle is of an L-shaped structure, the connecting plate is a kidney-shaped plane plate, one hinge hole in the front end of the arch-shaped arm is hinged to the front support, the other hinge hole in the front end of the arch-shaped arm is hinged to the handle hinge hole, and the adjusting bolt is arranged in the adjusting bolt hole. A handle hinge hole in the middle of the L-shaped connecting arm is hinged to a connecting plate, and the other end of the connecting plate is hinged to the rear support. According to the device disclosed by the utility model, all parts of the rotating lever mechanism can be quickly assembled under the condition that the distance and the parallelism between the seat plates are ensured; and the product quality can be stably and reliably guaranteed for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway freight car manufacturing device design, and specifically relates to a special auxiliary device for welding railway freight car component groups, in particular to a special auxiliary device for welding railway freight car rotating lever mechanism groups. Background Art

[0002] The rotating lever mechanism of the railway freight car chassis includes a front lever articulated seat, a rotating lever and a rear lever support. The rotating lever mechanism adopts a riveted structure with machined parts and mounting base plates; the transverse rotating lever adopts a machined mode, and its thickness is the same as the key spacing dimension b of the rear lever fulcrum seat, and the maximum rotation angle is 180°. According to different types of freight car models, such as boxcars, tank cars, hopper cars, etc., transverse rotating levers of different thicknesses can be replaced. Its main function is to ensure that the key spacing dimension b of the rear lever fulcrum seat and the parallelism of the two inner vertical surfaces are stable and reliable during the entire assembly and welding process.

[0003] The rotating lever mechanism consists of a transverse rotating lever and a front seat plate, a connecting pin, and a front lever hinge seat; the front seat plate and the mounting base plate are both fastened with bolts; its main functions are: first, the rotating lever can ensure that the lever will not swing in the front-to-back direction at any angle within the range of 0 to 180°, and ensure that the key spacing dimension b is consistent within the full length range under the clamping state, as well as the parallelism of the two inner vertical surfaces; second, to ensure that the rear lever fulcrum seat assembly can rotate the rotating lever to the required angle to the left after positioning welding, and the rear lever fulcrum seat assembly can be easily moved from the device to the next process for grinding weld corners, spatter or chamfering and other process contents.

[0004] One end of the rotating lever is hinged to the front lever hinge seat of the double-ear structure through a connecting pin to realize rotation around the pin, and the other end of the rotating lever is embedded in the opening groove of the rear lever support when the lever is closed. The distance between the two sides of the rotating lever embedded in the opening groove of the rear lever support and the parallelism between the rotating lever and the opening groove of the rear lever support often determine the safety performance of the rotating lever structure.

[0005] At present, the quality of the rear lever support is unstable, mainly because the assembly method of the rib plate, the seat plate and the rear lever support has long been a step-by-step manual line assembly method; as a result, after the seat plate and other structural parts are welded, the two key qualities of the spacing in the rear lever support opening groove and the parallelism between the rotating lever and the rear lever support opening groove cannot be effectively and stably controlled for a long time, affecting product quality. Therefore, it is necessary to seek a new solution to improve its quality and stability and eliminate possible safety hazards. Summary of the invention

[0006] The utility model discloses a special auxiliary device for welding a rotating lever mechanism of a railway freight car in view of the shortcomings of the prior art. The utility model aims to provide a special auxiliary device for welding a rotating lever mechanism of a railway freight car.

[0007] The utility model is realized by the following technical solutions:

[0008] A special welding auxiliary device for a railway freight car rotating lever mechanism assembly, the rotating lever mechanism is composed of a front lever hinged seat, a rotating lever and a rear lever U-shaped seat, characterized in that: the welding auxiliary device is used for welding the rear lever U-shaped seat assembly, and is composed of a bow arm, a support, a handle, a connecting plate and an adjusting bolt;

[0009] The bow-shaped arm is a rotatable structure, one end of the bow-shaped arm body is provided with two hinge holes, and the other end is provided with an adjusting bolt hole, and the center line of the two hinge holes is parallel to the axis of the adjusting bolt hole; the support is used to connect and fix the welding auxiliary device with the rotating lever mechanism, and has a plane plate and a front support and a rear support arranged on the plane plate; the handle is an L-shaped structure, the front end is a bent L-shaped connecting arm, and the two ends of the L-shaped connecting arm are respectively provided with handle hinge holes; the connecting plate is a waist-shaped plane plate, and the two ends are provided with connecting plate hinge holes;

[0010] One hinge hole of the bow-shaped arm body is hinged to the front support, and the other hinge hole is hinged to the handle hinge hole at the end of the L-shaped connecting arm. The adjusting bolt is telescopically adjustable and arranged in the adjusting bolt hole; the handle hinge hole in the middle of the L-shaped connecting arm is hinged to the connecting plate, and the other end of the connecting plate is hinged to the rear support.

[0011] Furthermore, a plurality of bolt holes are arranged on the plane plate of the support, and bolts are passed through the bolt holes to fix the support to the mounting seat plate on the U-shaped seat side of the rear lever of the rotating lever mechanism.

[0012] Furthermore, two connecting plates are arranged in parallel.

[0013] Furthermore, one end of the bow-shaped arm having the adjusting bolt hole is also provided with two parallel adjusting bolt holes arranged perpendicularly to the adjusting bolt hole, and each parallel adjusting bolt hole is provided with a matching parallel adjusting bolt.

[0014] The usefulness of the utility model: Compared with the existing rotary lever mechanism assembly welding device, the auxiliary device of the utility model adopts the manual numbering method to determine the position of the rib plate and the seat plate, and uses simple steel plates to weld together to form inserts with the same thickness and spacing, and relies on welders to assemble by pinching with their fingers. The spacing and parallelism between the seat plates are extremely unstable, which is very easy to cause batch repairs or scrapping. After being assembled with the truck chassis, there are great hidden dangers to the safety of truck driving. The auxiliary device of the utility model can quickly realize the assembly of all parts of the rotary lever mechanism while ensuring the spacing and parallelism between the seat plates; the product quality can be guaranteed stably and reliably for a long time. The production efficiency is extremely high; according to different truck models, it can be replaced with a rotary lever that meets the spacing requirements, with strong versatility, easy disassembly and assembly during use, and stable welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the auxiliary device of the utility model;

[0016] Figure 2 It is a schematic diagram of the fixed state of the lever support assembly after the rotating lever mechanism;

[0017] Figure 3 It is a top plan view of the rotary lever mechanism;

[0018] Figure 4 It is a front view schematic diagram of the components of the rear lever support of the rotary lever mechanism;

[0019] Figure 5 It is a front structural diagram of the rotary lever mechanism in the closed-rod state;

[0020] Figure 6 It is a schematic diagram of the clamping arm of the auxiliary device of the utility model;

[0021] Figure 7 yes Figure 6 Middle A-direction view;

[0022] Figure 8 yes Figure 6 Middle B view;

[0023] Fig. 9 It is a schematic diagram of the hinged support of the clamping arm of the auxiliary device of the utility model;

[0024] Fig.10 It is a top plan view of the hinged support of the clamping arm of the auxiliary device of the utility model;

[0025] Fig.11 It is a schematic diagram of the handle of the auxiliary device of the utility model;

[0026] Fig.12 It is a schematic diagram of the connection plate of the auxiliary device of the utility model;

[0027] Fig.13 It is a side view schematic diagram of a connecting plate of an auxiliary device of the utility model.

[0028] In the figure, 1-bow arm, 2-support, 3-connecting plate, 4-handle, 5-adjusting bolt; 11-bow arm body, 12-hinge hole, 13-adjusting bolt hole, 14-parallel adjusting bolt hole, 15-groove; 21-front support, 22-rear support; 31-connecting plate hinge hole; 41-handle hinge hole, 42-L-shaped connecting arm;

[0029] 100-rotating lever, 101-installing base plate, 102-front seat plate, 103-connecting pin, 104-front lever hinge seat, 105-U-shaped groove seat plate, 106--U-shaped groove side plate, 107-installing seat plate, 108-support rib plate 1, 109-support rib plate 2, b-rear lever support spacing. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies identical or similar to the present invention do not exceed the scope of protection of the present invention.

[0031] Combined with the attached pictures.

[0032] As shown in the figure, the utility model is a special welding auxiliary device for a railway freight car rotating lever mechanism, the rotating lever mechanism is composed of a front lever hinge seat, a rotating lever 100 and a rear lever U-shaped seat, the welding auxiliary device is used for welding the rear lever U-shaped seat assembly, and is composed of a bow arm 1, a support 2, a handle 4, a connecting plate 3 and an adjusting bolt 5;

[0033] The bow-shaped arm 1 is a rotatable structure, with two hinge holes 12 at one end of the main body of the bow-shaped arm 1 and an adjusting bolt hole 13 at the other end, and the center line of the two hinge holes 12 is parallel to the axis of the adjusting bolt hole 13; the support 2 is used to connect and fix the welding auxiliary device with the rotating lever mechanism, and has a plane plate and a front support 21 and a rear support 22 arranged on the plane plate; the handle 4 is an L-shaped structure, with a bent L-shaped connecting arm 42 at the front end, and handle hinge holes 41 are respectively arranged at both ends of the L-shaped connecting arm 42; the connecting plate 3 is a waist-shaped plane plate, and connecting plate hinge holes 31 are arranged at both ends;

[0034] One hinge hole 12 of the main body of the bow-shaped arm 1 is hinged to the front support 21, and the other hinge hole 12 is hinged to the handle hinge hole 41 at the end of the L-shaped connecting arm 42, and the adjusting bolt 5 is telescopically adjustable and arranged in the adjusting bolt hole 13; the handle hinge hole 41 in the middle of the L-shaped connecting arm 42 is hinged to the connecting plate 3, and the other end of the connecting plate 3 is hinged to the rear support 22.

[0035] A plurality of bolt holes are arranged on the plane plate of the support 2, and bolts are passed through the bolt holes to fix the support 2 to the mounting seat plate 107 on the U-shaped seat side of the rear lever of the rotary lever mechanism.

[0036] Two connecting plates 3 are arranged in parallel, and the two ends of the two connecting plates 3 clamp the handle 4 and the rear support 22 therebetween and are hingedly connected via a hinge shaft.

[0037] One end of the bow-shaped arm 1 where the adjusting bolt hole 13 is provided is also provided with two parallel adjusting bolt holes 14 arranged perpendicularly to the adjusting bolt hole, and each parallel adjusting bolt hole 14 is provided with a matching parallel adjusting bolt.

[0038] The spacing b of the rear lever supports of different truck models is different. The limited clamping length of the bolt 5 is adjusted by tightening or loosening. After the bow arm 1 is rotated and locked, the U-groove side plate 106 and the transverse rotating lever 100 composed of the rear lever support are compressed by adjusting the parallel adjustment bolt in the parallel adjustment bolt hole 14 to ensure that the spacing b of the rear lever support and the parallelism of the two inner vertical surfaces are stable and reliable during the entire assembly welding process.

[0039] The application process of the utility model railway freight car rotating lever mechanism group to the special welding auxiliary device:

[0040] like Figure 2 As shown, the U-shaped groove seat plate 105 is placed on the mounting base plate 101 and close to the mounting seat plate 107, and the horizontal rotating lever 100 is rotated 180° so that the rotating lever 100 is in close contact with the left side of the U-shaped groove seat plate 105; the U-shaped groove side plate 106 is placed in the U-shaped groove seat plate 105 close to the right side of the rotating lever 100; then the welding auxiliary device is in a locked state; the spacing adjustment bolt 5 with a pre-set effective length at the right end of the bow arm 1 is simultaneously in a compressed state with the U-shaped groove side plate 106 and the rotating lever 100; a support rib plate 108 is placed on both sides of the parallel adjusting bolt of the support rib plate 108 with a pre-set effective length at the right end of the bow arm 1, and the tolerance of all the parts of the previous process is driven to the right side of the U-shaped groove seat plate 105, and then the assembly and positioning welding of the U-shaped groove side plate 106 and the support rib plate 108 are started.

[0041] The unloading process is as follows: the handle 4 rotates clockwise, the pin shaft of the rear support 22 rotates accordingly, and the handle 4 rotates clockwise at the same time, driving the connecting plate 3 to rotate counterclockwise with the rear support 22 as the center; at the same time, the bow arm 1 is driven to rotate with the front support 21 as the center, and after the bow arm 1 rotates to a suitable angle, the rear lever fulcrum after positioning welding is taken out; among them, the relative positions of the rear support 22 and the front support 21 remain unchanged, the handle 4 rotates clockwise, and the bow arm 1 rotates counterclockwise around the front support 21 to realize opening and unloading.

[0042] From the unloading state to the clamping state, the welding auxiliary device is opposite to the unloading process. After being fixed by the support 2, the handle 4 rotates counterclockwise, the relative positions of the rear support 22 and the front support 21 remain unchanged, and the bow arm 1 rotates clockwise. By adjusting the adjusting bolt 5 and the parallel adjusting bolt, the U-shaped groove side plate 106, the U-shaped groove seat plate 105, and the horizontal rotating lever 100 of the rear lever support are clamped, and then the assembly positioning welding is carried out.

Claims

1. A special welding auxiliary device for a railway freight car rotating lever mechanism, the rotating lever mechanism is composed of a front lever hinge seat, a rotating lever and a rear lever U-shaped seat, characterized in that: The welding auxiliary device is used for welding the rear lever U-shaped seat assembly, and is composed of a bow arm, a support, a handle, a connecting plate and an adjusting bolt; The bow-shaped arm is a rotatable structure, one end of the bow-shaped arm body is provided with two hinge holes, and the other end is provided with an adjusting bolt hole, and the center line of the two hinge holes is parallel to the axis of the adjusting bolt hole; the support is used to connect and fix the welding auxiliary device with the rotating lever mechanism, and has a plane plate and a front support and a rear support arranged on the plane plate; the handle is an L-shaped structure, the front end is a bent L-shaped connecting arm, and the two ends of the L-shaped connecting arm are respectively provided with handle hinge holes; the connecting plate is a waist-shaped plane plate, and the two ends are provided with connecting plate hinge holes; One hinge hole of the bow-shaped arm body is hinged to the front support, and the other hinge hole is hinged to the handle hinge hole at the end of the L-shaped connecting arm. The adjusting bolt is telescopically adjustable and arranged in the adjusting bolt hole; the handle hinge hole in the middle of the L-shaped connecting arm is hinged to the connecting plate, and the other end of the connecting plate is hinged to the rear support.

2. The special welding auxiliary device for railway freight car rotating lever mechanism assembly according to claim 1 is characterized in that: A plurality of bolt holes are arranged on the plane plate of the support, and bolts are passed through the bolt holes to fix the support on the mounting seat plate on the U-shaped seat side of the rear lever of the rotating lever mechanism.

3. The special welding auxiliary device for railway freight car rotating lever mechanism assembly according to claim 1, characterized in that: Two connecting plates are arranged in parallel.

4. The special welding auxiliary device for railway freight car rotating lever mechanism assembly according to claim 1, characterized in that: One end of the bow-shaped arm where the adjusting bolt hole is arranged is also provided with two parallel adjusting bolt holes which are arranged vertically with the adjusting bolt hole, and each parallel adjusting bolt hole is provided with a matching parallel adjusting bolt.

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