Assembly and welding tool for brake hanging seat of meter gauge bogie frame
Technical Field
The invention belongs to the technical field of railway equipment manufacturing, and particularly relates to a pairing and welding tool for a brake hanging seat of a meter-gauge bogie frame.
Background
The meter gauge bogie frame is a matched manufacturing project of the railway equipment in the company, is a new product research and development project of the first trial production of the company, and has specificity and batchability. The brake hanging seat of the meter rail framework is influenced by the structure of the brake hanging seat, two groups of brake hanging seats of the meter rail framework developed at present by a company are symmetrically distributed on the beam pipe of the meter rail framework, the center of the upper hanging lug hole of the brake hanging seat is required to be approximately 650mm away from the center of the beam pipe on the same side of the meter rail framework, the center of the lower hanging lug hole is required to be 448mm away from the center of the beam pipe on the same side, the horizontal center of the beam is required to be 107mm away from the center of the beam, and the two hanging lugs of the two brake hanging seats on the same side are positioned at the same axial line, so that the special welding precision of the two brake hanging seats on the same side is difficult to realize due to the fact that the special welding precision of the two groups is required to be realized when the two hanging seats are positioned in the same axial line.
Disclosure of Invention
The invention aims to provide a pairing and welding tool for a brake hanging seat of a meter-gauge bogie frame, which utilizes a finished spring seat machining surface and a finished mounting hole on a meter-gauge bogie frame side beam as a reference surface and a positioning hole of the tool, fixedly connects a positioning seat plate at two ends of a main beam of the tool with a spring seat of a frame side beam through bolts, and connects a lifting lug of the brake hanging seat with a lifting lug positioning seat of the tool through a pin shaft to complete pairing and welding of the brake hanging seat.
The technical scheme is that the assembling and welding tool for the brake hanging seat of the meter-gauge bogie frame comprises a main beam, a locating seat plate, a reinforcing plate, a lifting lug locating seat and a pin shaft, wherein the main beam is a square steel pipe with two end parts being milled into low shoulders, the locating seat plates are respectively arranged on the low shoulders at the two ends, the locating seat plate is a flat plate with a rectangular structure, connecting holes fixedly connected with spring seats below the side beams of the meter-gauge bogie frame are formed in the locating seat plate, the locating seat plate is fixedly arranged on the end faces of the low shoulders at the two ends of the main beam through welding, the reinforcing plate is respectively arranged at the side faces of the low shoulders at the two ends of the main beam and is fixedly connected with the locating seat plate through welding, the lifting lug locating seat consists of two lug plates and a connecting plate, the two lug plates are symmetrically fixed at the two sides of the connecting plate, locating holes connected with the lower lug holes of the brake hanging seat are formed in the lug locating seat, the two groups of the locating seat plates are symmetrically arranged at the two sides of the center of the same side face and are fixedly arranged on the side faces of the main beam, the lifting lug locating seat is fixedly arranged in the locating pin shaft.
The length of the main beam is matched with the distance between the outer sides of the two side beams on the same side of the meter-gauge bogie frame, and the length of the low shoulders at the two ends of the main beam is consistent with the length of the positioning seat plate.
The shape and the size of the positioning seat plates are the same as those of the spring seats below the side beams of the meter-gauge bogie frame, and the center distance and the size of the connecting holes between the positioning seat plates at the two ends are consistent with those of the spring seats below the side beams at the same side of the meter-gauge bogie frame.
The fixed positions of the two groups of lifting lug positioning seats on the side face of the main beam are matched with the fixed positions of the two groups of braking lifting seats on the same side of the meter track bogie frame.
The distance M between the centers of the lug plates of the two lifting lug positioning seats is the same as the center distance L between the two groups of brake lifting seats on the same side on the meter track bogie frame.
The space height H between the centers of the lug plate positioning holes and the horizontal center of the cross beam is consistent with the height H between the centers of the holes of the lug plates under the brake hanging seat and the horizontal center of the cross beam.
The distance between the two lug plates of the lifting lug positioning seat is smaller than the inner gear span of the lower lug plate of the braking hanging seat, and the centers of the positioning holes on the lug plates of the two lifting lug positioning seats are on the same axis.
The aperture of the positioning hole on the lug plate is the same as the aperture of the lug plate under the brake hanging seat.
The diameter of the pin shaft is matched with the aperture of the positioning hole on the ear plate.
The reinforcing plate is of a trapezoidal flat plate structure, the size of the upper end of the trapezoid is matched with the size of the square steel tube of the main beam, and the size of the lower end of the trapezoid is matched with the width size of the positioning seat plate.
When the tool is used, the positioning seat plates at two ends of the main girder of the tool are firstly arranged on the spring seats of the side beams from the lower part of the meter track bogie frame, the positioning seat plates are connected and fastened with the spring seats through bolts, then the lower lug plates of the brake hanging seat are put into the lifting lug positioning seat, the lower lug plates are clamped on the outer sides of the two lug plates of the lifting lug positioning seat, the pin shafts penetrate into the positioning holes on the lug plates and the holes of the lower lug plates of the brake hanging seat, the two positioning holes and the holes of the lower lug plates are connected together, the other ends of the two groups of brake hanging seats are put on the beam tubes of the meter track bogie frame, the brake hanging seat is assembled, then welding is carried out, and after the welding is finished, the pin shafts and the bolts connected with the spring seats are taken out, and the tool is moved out, so that the assembly and the welding work of the brake hanging seat are completed.
The fixture has the beneficial effects that the fixture is simple in structural design and convenient to operate, can realize rapid and accurate positioning of the brake hanging seat, prevents deformation during welding, solves the problems of assembly of the space dimension of the brake hanging seat and deformation after welding, greatly improves the working efficiency of assembly and welding, and ensures the product quality.
Drawings
FIG. 1 is a front view of the present invention mounted to a meter track bogie frame in use;
FIG. 2 is a bottom view of the present invention mounted to a meter track bogie frame in use
FIG. 3 is a front elevational view of the structure of the present invention;
FIG. 4 is a top view of the present invention;
Fig. 5 is a schematic view of a lifting lug positioning seat according to the present invention;
FIG. 6 is a schematic view of the structure of the positioning seat plate of the present invention;
FIG. 7 is a schematic view of a reinforcement plate structure of the present invention;
In the figure, the main beam, the positioning seat plate, the reinforcing plate, the lifting lug positioning seat and the pin shaft are marked by 1,2,3, 4,
6. The connecting hole, 7, the lug plate, 8, the connecting plate, 9, the positioning hole, 10, the brake hanging seat, 11, the lower lug plate of the brake hanging seat, 12, the side beam, 13, the cross beam, 14, the cross beam pipe, 15, the spring seat,
M, the distance between the centers of the lug plates of the two groups of lug positioning seats,
L, the center distance of the two groups of brake hanging seats on the meter track bogie frame,
H. the center of the hole of the lower lug plate of the brake hanging seat is at a height from the horizontal center of the cross beam,
H. the center of the locating hole of the ear plate is spaced from the space height between the horizontal centers of the cross beams.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The tool comprises a main beam 1, a positioning seat plate 2, a reinforcing plate 3, a lifting lug positioning seat 4 and a pin shaft 5, wherein the main beam 1 is a square steel pipe with two end parts milled into a low shoulder, the length of the main beam 1 is matched with the distance between the outer sides of two side beams 12 of the meter-gauge bogie frame, the positioning seat plate 2 is respectively arranged on the low shoulders at the two ends of the main beam 1, the length of the low shoulder is consistent with the length of the positioning seat plate 2, the positioning seat plate 2 is a flat plate with a rectangular structure, the shape and the size of the positioning seat plate 2 are the same as those of a spring seat 15 below a meter-gauge bogie frame side beam 12, the positioning seat plate 2 is provided with a connecting hole 6 fixedly connected with the spring seat 15, the center distance between the positioning seat plate 2 at the two ends is consistent with the size of the spring seat 15 below the two side beams of the meter-gauge bogie frame, the positioning seat plate 2 is welded and fixed on the two end faces of the main beam 1 through the low shoulder, the positioning seat plate 2 is arranged on the upper side face of the main beam 1 by using the design of the low shoulder, the positioning seat plate 2 is matched with the trapezoidal seat plate 3, the bottom surface of the high-gauge bogie frame is welded with the two end faces of the side frame 2, and the high-gauge bogie frame is welded with the bottom seat plate 3 is welded with the bottom surface of the bottom plate 3, and the bottom plate is welded to the bottom plate is positioned on the bottom plate is welded to the bottom plate 3.
The lifting lug positioning seat 4 consists of two lug plates 7 and a connecting plate 8, wherein the two lug plates 7 are symmetrically fixed on two sides of the connecting plate 8, positioning holes 9 are formed in the lug plates 7, the two groups of lifting lug positioning seats 4 are symmetrically arranged on two sides of the same side surface center of the main beam 1 and fixedly welded on the side surface of the main beam 1, the distance between the two lug plates 7 of the lifting lug positioning seat 4 is smaller than the inner span of the lower lug plate 11 of the braking lifting seat, the lower lug plate 11 of the braking lifting seat is conveniently clamped on the outer side of the two lug plates 7, the centers of the positioning holes 9 on the two groups of lifting lug positioning seats 4 are on the same axis, the aperture of the positioning holes 9 is the same as the aperture of the lower lug plate 11 of the braking lifting seat, the fixed position of the two groups of the lifting lug positioning seats 4 on the side surface of the main beam 1 is matched with the fixed position of the two groups of the lifting lug positioning seats 10 on the same side of the meter rail bogie frame, the space size of the centers of the two groups of the lifting lug seats 9 on the same side is consistent with the position size of the centers of the holes of the lower lug plates 11 of the lifting lug plates on the meter rail bogie frame, namely, the diameter of the centers of the lifting lug plates 9 on the same side of the lifting lug plates is more identical with the center of the lifting lug frames, and the diameter of the lifting lug frames is more accurately matched with the diameter of the center of the central shaft of the lifting lug frames 10 on the side of the lifting lug frames 7 on the side of the lifting lug frames 9, which is positioned on the same level with the side of the center rail 7, and the center of the center hole is positioned between the lifting lug frames is positioned on the side is shown as the side is the side.
The specific operation process of the invention is that the positioning seat plates 2 at the two ends of the main girder 1 of the tool are respectively corresponding to the spring seats 15 on the side beams 12 from the lower part of the meter-gauge bogie frame, bolts are used for penetrating through the connecting holes 6 of the positioning seat plates 2 to be connected and fastened with the spring seats 15, then the lower lug plates 11 of the brake hanging seat are put into the lifting lug positioning seat 4, the lower lug plates 11 of the brake hanging seat are clamped at the outer sides of the two lug plates 7 of the lifting lug positioning seat 4, the pin shafts 5 penetrate through the positioning holes 9 on the lug plates 7 and the holes of the lower lug plates 11 of the brake hanging seat to be connected together, the other end of the brake hanging seat 10 is put on the beam tube 13 of the meter-gauge bogie frame to complete the assembly of the brake hanging seat 10, the welding is carried out, after the welding is completed, the pin shafts 5 and the bolts connected with the spring seats 15 are taken out, and the tool is removed, thus the assembly and the welding work of the brake hanging seat 10 are completed.
At present, the tool is used in the trial production of the meter gauge bogie frame, ensures the accurate installation position of the brake hanging seat, meets the technical requirements of products, has good effect and is suggested to be popularized.