Cutting and replacing welding equipment for lower side door of open wagon

Abstract

The utility model provides an open wagon lower side door cutting and replacing welding device which comprises an overturning cutting platform, a feeding conveying platform, a normal position pressing mechanism and a discharging conveying platform, a welding robot is arranged on one side of the normal position pressing mechanism, and a reverse position pressing mechanism is arranged on the periphery of the welding robot. The overturning cutting platform is used for vertically overturning a lower side door so that the lower side door can be subjected to front and back face cutting, the normal position pressing mechanism comprises a first frame body, a normal position lifting assembly and a normal position pressing assembly, and the first frame body is provided with a fixed rolling wheel set used for bearing and horizontally moving the lower side door; the reverse-position pressing mechanism comprises a second frame body, a reverse-position lifting assembly and a reverse-position pressing assembly. According to the cutting, replacing and welding equipment for the lower side door of the open wagon, assembly line operation from cutting to welding of the lower side door is achieved, the labor intensity of workers is greatly reduced, the welding quality of the lower side door is guaranteed, and the efficiency of maintenance operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of railway gondola car lower side door maintenance, concretely relates to a gondola car lower side door cutting and replacing welding equipment. BACKGROUND

[0002] The gondola car refers to the railway freight car with end wall, side wall, floor and no roof, which is opened upward, and is mainly used for transporting bulk goods such as coal, ore, mine building materials, timber and steel. Since the gondola car has great versatility, the number of gondola cars in the freight car composition is the largest, which directly leads to the rapid increase of the maintenance demand of the gondola car. In the feedback fault of the railway gondola car operation, the proportion of the lower side door fault is large, and due to the factors of the operation environment, the lower half of the lower side door is seriously corroded and damaged, while the upper half is in good quality and can be used continuously. If the whole lower side door is directly replaced, the maintenance cost is high, and resources are wasted.

[0003] Therefore, in the prior art, the cutting and replacing method is used to repair the above-mentioned partially damaged lower side door, that is, the damaged lower half of the door plate is cut off, and the new door plate is spliced and assembled and then welded and repaired. At present, the cutting and replacing of the lower side door is divided into three stations of cutting, assembling and welding to perform the operation respectively, but due to the limitation of the existing equipment, the lower side door needs to be frequently transmitted by using a cantilever crane, a crown block and the like between the stations, and the three stations all adopt manual operation, so the operation efficiency is low, the labor intensity is large, and the cutting and replacing quality is greatly affected by human factors. UTILITY MODEL CONTENTS

[0004] The utility model embodiment provides a gondola car lower side door cutting and replacing welding equipment, which can greatly reduce the labor intensity, ensure the welding quality of the lower side door and improve the efficiency of the maintenance operation.

[0005] To achieve the above object, the utility model discloses the technical scheme that adopts: provide a kind of open wagon lower side door intercepts and replaces welding equipment, including sequentially arranged turnover cutting platform, feed conveying platform, positive position pressing mechanism and discharge conveying platform, one side of positive position pressing mechanism is equipped with welding robot, and the periphery of welding robot is equipped with reverse position pressing mechanism, turnover cutting platform is used to vertically overturn lower side door to make lower side door carry out positive and negative surface cutting, positive position pressing mechanism includes first frame body, positive position lifting assembly and positive position pressing assembly, fixed roller group for supporting and translating lower side door is equipped on first frame body, positive position lifting assembly is connected on first frame body, for jacking lower side door to make lower side door separate from fixed roller group, and positive position pressing assembly is connected on the side of first frame body close to welding robot, for receiving lower side door on positive position lifting assembly and pressing lower side door to supply welding robot welding, reverse position pressing mechanism includes second frame body, reverse position lifting assembly and reverse position pressing assembly, reverse position lifting assembly is connected on second frame body, for receiving the lower side door transferred from discharge conveying platform, and reverse position pressing assembly is connected on the side of second frame body close to welding robot, for receiving lower side door on reverse position lifting assembly and pressing lower side door to supply welding robot welding.

[0006] As another embodiment of the utility model, define first direction from turnover cutting platform to discharge conveying platform, second direction from positive position pressing mechanism to welding robot, and the second direction is perpendicular to the first direction;Reverse position pressing mechanism and welding robot are arranged along the first direction, and the reverse position pressing mechanism is close to the discharge conveying platform;Fixed roller group includes two rows of first rollers, each row of first rollers includes a plurality of first rollers rotatably connected to the first frame body and arranged along the first direction, and the main shaft of the first roller extends along the second direction.

[0007] As another embodiment of the utility model, positive position lifting assembly includes first lifting drive, first lifting frame and a plurality of second rollers;First lifting drive is connected to the first frame body, and the first lifting drive has an upwardly extending drive end;First lifting frame is connected to the drive end, and a plurality of upwardly extending first mounting seats are provided above the first lifting frame;A plurality of second rollers are rotatably connected to the first mounting seat one by one, the main shaft of the second roller extends along the first direction, the second roller is provided with two rows, each row of second rollers includes a plurality of second rollers arranged along the second direction, and the second roller can be moved to protrude from the first roller under the driving of the first lifting frame to transfer the lower side door.

[0008] As another embodiment of the utility model, the reverse position lifting assembly comprises a second lifting driving element, a second lifting frame and a plurality of third rollers; the second lifting driving element is connected to the second frame body, and the second lifting driving element has a jacking end extending upwards; the second lifting frame is connected to the jacking end, and a plurality of second mounting seats extending upwards are arranged above the second lifting frame; a plurality of third rollers are rotatably connected to the second mounting seats one by one, the main shaft of the third roller extends along the second direction, and the third roller is provided with two rows, and each row of third rollers comprises a plurality of third rollers arranged at intervals along the first direction.

[0009] As another embodiment of the utility model, the positive position pressing assembly and the reverse position pressing assembly both comprise a lower pressing die, an upper pressing die and a jacking driving element, the lower pressing die is connected to the first frame body or the second frame body, the jacking driving element is connected to the first frame body or the second frame body, the upper pressing die is connected to the outer end of the jacking driving element and is arranged in correspondence with the lower pressing die, and the upper pressing die can be pressed downward under the driving of the jacking driving element to press the lower side door together with the lower pressing die.

[0010] As another embodiment of the utility model, the jacking driving element is located at the side of the lower pressing die, the upper pressing die is connected to the jacking driving element through a connecting rod assembly, the connecting rod assembly comprises a support rod hinged to the first frame body or the second frame body and a linkage rod hinged to the upper end of the support rod, the upper end of the support rod and the middle part of the linkage rod are hinged through a hinge shaft, the inner end of the linkage rod is hinged to the upper pressing die, the outer end of the linkage rod is hinged to the outer end of the jacking driving element, and the linkage rod can be vertically swung around the hinge shaft under the driving of the jacking driving element to drive the upper pressing die to lift or press downward.

[0011] As another embodiment of the utility model, the second frame body is connected with a connecting plate extending downward, and the lower end of the connecting plate is connected with a horizontal extending positioning supporting plate, and the positioning supporting plate is used for limiting the downward displacement of the second lifting frame.

[0012] As another embodiment of the utility model, the feeding conveying platform and the discharging conveying platform both comprise a third frame body and two rows of fourth rollers rotatably connected to the third frame body, each row of fourth rollers comprises a plurality of fourth rollers arranged at intervals along the first direction, and the main shaft of the fourth roller extends along the second direction.

[0013] As another embodiment of the utility model, the turnover cutting platform comprises a fourth frame body, a first clamping frame and a second clamping frame, the first clamping frame comprises a first clamping plate rotatably connected to the fourth frame body and two first pin shafts connected to the two ends of the first clamping plate respectively, the first pin shafts are used for penetrating through the mounting holes on the upper end of the lower side door hinge to fix the upper end of the lower side door to the first clamping plate, the second clamping frame comprises a second clamping plate rotatably connected to the fourth frame body and two second pin shafts connected to the two ends of the second clamping plate respectively, the second pin shafts are used for pressing the lower end of the lower side door hinge to the second clamping plate, and the first clamping plate and the second clamping plate are used for driving the lower side door to vertically turn over in the fourth frame body.

[0014] As another embodiment of the utility model, the fourth frame body is connected with a bearing seat, the first clamping plate is connected with a rotating shaft in rotation with the bearing seat, the rotating shaft is provided with a positioning disc between the bearing seat and the first clamping plate, a plurality of positioning holes are arranged on the disc in a circumferential direction, and the bearing seat is connected with a positioning pin in plug-in cooperation with the positioning holes.

[0015] The open wagon lower side door cutting and welding equipment has the advantages that, compared with the prior art, the utility model discloses an open wagon lower side door cutting and welding equipment, a turnover cutting platform can fix and vertically turn over a lower side door to enable the lower side door to be cut on both sides, the cut lower side door is transferred to a feeding conveying platform after being spliced and assembled, then the lower side door is pushed to the fixed roller set in the normal position pressing mechanism, feeding is completed, the lower side door on the fixed roller set is lifted up by a normal position lifting assembly, so that the lower side door is horizontally pushed into the normal position pressing assembly, the lower side door is pressed by the normal position pressing assembly, a welding robot performs front welding on the lower side door, the lower side door is transferred to a discharging conveying platform after front welding, discharging is completed, the lower side door is lifted and vertically turned over by a wall-mounted crane, and then is transferred to a reverse position pressing mechanism, the lower side door is lifted up by a reverse position lifting assembly, so that the lower side door is horizontally pushed into the reverse position pressing assembly, and after the lower side door is fixed and pressed, the lower side door is reversely welded by the welding robot. Through the equipment, pipeline operation from cutting to welding of the lower side door is realized, manual labor intensity is greatly reduced, the welding quality of the lower side door is ensured, and the efficiency of maintenance operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0017] Figure 1 It is a front view structural diagram of the lower side door in the prior art.

[0018] Figure 2 This is a side view diagram of the lower side door structure in the prior art;

[0019] Figure 3 A top view of the welding equipment for the lower side door of a convertible provided in this embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the working state of the positive positioning clamping mechanism provided in this embodiment of the utility model (before clamping).

[0021] Figure 5 A schematic diagram of the working state structure of the positive positioning clamping mechanism provided in this embodiment of the utility model (after clamping).

[0022] Figure 6 A schematic diagram of the working state of the reverse clamping mechanism provided in this embodiment of the utility model (before clamping).

[0023] Figure 7 A schematic diagram of the working state of the reverse clamping mechanism provided in this embodiment of the utility model (after clamping).

[0024] Figure 8 Schematic diagrams of the feeding conveyor platform and the discharging conveyor platform provided in the embodiments of this utility model;

[0025] Figure 9 A front view of the flipping cutting platform provided in an embodiment of this utility model;

[0026] Figure 10 A side view of the flipping cutting platform provided in an embodiment of this utility model;

[0027] Figure 11 This is an embodiment of the present utility model. Figure 10 Enlarged structural diagram of section A in the middle;

[0028] Figure 12 A schematic diagram of the structure of the first clamping frame provided in an embodiment of this utility model;

[0029] Figure 13 This is a schematic diagram of the structure of the second clamping frame provided in an embodiment of the present utility model.

[0030] The following are the labeling elements in the figure:

[0031] 1, welding robot; 2, normal position pressing mechanism; 21, fixed roller set; 211, first roller; 22, normal position lifting assembly; 221, first lifting driving piece; 222, first lifting frame; 223, second roller; 224, first mounting seat; 23, normal position pressing assembly; 231, lower pressing die; 232, upper pressing die; 233, tightening driving piece; 24, first frame body; 25, connecting rod assembly; 251, support rod; 252, linkage rod; 3, reverse position pressing mechanism; 31, reverse position lifting assembly; 311, second lifting driving piece; 312, second lifting frame; 313, third roller; 314, second mounting seat; 32, reverse position pressing assembly; 33, second frame body; 331, connecting plate; 332, positioning supporting plate; 4, feeding conveying platform; 41, fourth roller; 42, third frame body; 5, discharging conveying platform; 6, overturning and cutting platform; 61, fourth frame body; 611, bearing seat; 62, first clamping frame; 621, first clamping plate; 622, first pin shaft; 623, rotating shaft; 624, positioning disc; 6241, positioning hole; 625, positioning pin; 626, mounting vertical plate; 63, second clamping frame; 631, second clamping plate; 632, second pin shaft; 633, vertical plate; 634, mounting plate; 10, lower side door; 101, folding leaf. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0033] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise specifically limited.

[0034] Please refer to Figures 1 to 13The utility model provides a gondola car lower side door section changes welding equipment, including the overturn cutting platform 6 of arrangement in proper order, feed conveying platform 4, positive pressure mechanism 2 and discharge conveying platform 5, one side of positive pressure mechanism 2 is equipped with welding robot 1, the periphery of welding robot 1 is equipped with reverse pressure mechanism 3, overturn cutting platform 6 is used for vertical overturning lower side door 10 to make lower side door 10 carry out positive and negative surface cutting, positive pressure mechanism 2 includes first frame body 24, positive lifting assembly 22 and positive pressure assembly 23, and the fixed roller group 21 for supporting and translating lower side door 10 is equipped on first frame body 24, and positive lifting assembly 22 is connected on first frame body 24, and is used for jacking lower side door 10 to make lower side door 10 separate fixed roller group 21, and positive pressure assembly 23 is connected on the side of first frame body 24 close to welding robot 1, and is used for the lower side door 10 on positive lifting assembly 22 and press tightly lower side door 10 to supply welding robot 1 with welding, and reverse pressure mechanism 3 includes second frame body 33, reverse lifting assembly 31 and reverse pressure assembly 32, and reverse lifting assembly 31 is connected on second frame body 33, and is used for the lower side door 10 that discharge conveying platform 5 shifts, and reverse pressure assembly 32 is connected on the side of second frame body 33 close to welding robot 1, and is used for the lower side door 10 on reverse lifting assembly 31 and press tightly lower side door 10 to supply welding robot 1 with welding.

[0035] The gondola car lower side door section changes welding equipment provided by the embodiment can fix and vertically overturn the lower side door 10 to make the lower side door 10 be cut in positive and negative surfaces, the cut lower side door 10 is transferred to the feed conveying platform 4 after being assembled, then the lower side door 10 is pushed to the fixed roller group 21 in the positive pressure mechanism 2 to complete feeding, the lower side door 10 on the fixed roller group 21 is lifted up by the positive lifting assembly 22 to facilitate the horizontal pushing of the lower side door 10 to the positive pressure assembly 23, the lower side door 10 is pressed by the positive pressure assembly 23, and the lower side door 10 is welded in the front surface by the welding robot 1, the lower side door 10 is transferred to the discharge conveying platform 5 after the front surface welding is completed to complete discharging, the lower side door 10 is lifted and vertically overturned by the wall row crane and then is transferred to the reverse pressure mechanism 3, the lower side door 10 is lifted up by the reverse lifting assembly 31 to facilitate the horizontal pushing of the lower side door 10 to the reverse pressure assembly 32, and the lower side door 10 is welded in the back surface by the welding robot 1 after being fixed by the reverse pressure assembly 32. The above-mentioned equipment realizes the assembly line operation of the lower side door 10 from cutting to welding, greatly reduces the labor intensity, guarantees the welding quality of the lower side door 10 and improves the efficiency of the maintenance operation.

[0036] It should be noted that, referring to Figure 1 and Figure 2The lower side door 10 comprises a door plate and two hinges 101 welded on the outer sidewall of the door plate, the upper end of the hinge 101 extends upward and bends downward to form a mounting hole, the lower side door 10 is hinged to the open wagon body by penetrating the mounting hole with a pin shaft, the lower end of the hinge 101 extends downward and protrudes from the lower edge of the door plate, and the lower end of the hinge 101 is pressed on the vehicle body by a buckle to fix the lower side door 10. The door plate is formed by stamping a steel plate, and the surface has protrusions and depressions, which can increase the carrying capacity of the lower side door 10. The side of the lower side door 10 welded with the hinge 101 is the front side, and the side opposite to the front side is the back side.

[0037] When the lower side door 10 is replaced, only the lower half of the door plate is usually cut, and the hinge 101 does not need to be cut, so the front and back sides of the lower side door 10 need to be cut to ensure the cutting quality of the lower side door 10. In the embodiment, the front side of the lower side door 10 is cut by plasma cutting, the dead angle position between the lower side door 10 and the hinge 101 is turned over, and the back side of the lower side door 10 is cut by oxygen cutting, which can well guarantee the cutting quality. The lower side door 10 is fixed on the turnover cutting platform 6, the front side of the lower side door 10 is cut, then the lower side door 10 is turned over by 180 degrees by the turnover cutting platform 6, the back side of the lower side door 10 is cut, then the cut lower half of the door plate is taken out, and the new door plate part is spliced and spot welded with the upper half of the door plate. After splicing, it can be transported to the feeding conveying platform 4 to complete the subsequent welding process of the lower side door 10.

[0038] As a specific embodiment of the open wagon lower side door replacement welding equipment provided by the utility model, see Figures 3 to 5 , the first direction is defined from the turnover cutting platform 6 to the discharging conveying platform 5, and the second direction is defined from the normal position pressing mechanism 2 to the welding robot 1, and the second direction is perpendicular to the first direction; the reverse position pressing mechanism 3 and the welding robot 1 are arranged along the first direction at intervals, and the reverse position pressing mechanism 3 is arranged close to the discharging conveying platform 5, and the fixed roller set 21 comprises two rows of first rollers 211, each row of first rollers 211 comprises a plurality of first rollers 211 rotationally connected to the first frame body 24 and arranged along the first direction at intervals, and the main shaft of the first roller 211 extends along the second direction.

[0039] In the embodiment, the first roller 211 is rotationally connected to the first frame body 24, used for receiving the lower side door 10 pushed from the feeding conveying platform 4, and used for horizontally transferring the lower side door 10 to the discharging conveying platform 5 after the front side welding of the lower side door 10 is completed. The setting of the first roller 211 can reduce the moving friction of the lower side door 10, and only one worker is needed to easily push the lower side door 10, so as to realize the feeding and discharging of the lower side door 10 between the feeding conveying platform 4, the normal position pressing mechanism 2 and the discharging conveying platform 5.

[0040] The fixed roller group 21 plays a role of a transfer platform for the aligning and pressing mechanism 2, the lower side door 10 is transferred from the feeding conveying platform 4 to the fixed roller group 21, the lower side door 10 is supported by the plurality of first rollers 211, then the aligning and lifting assembly 22 is used to lift the lower side door 10 upward, so as to transfer the lower side door 10 to the aligning and pressing assembly 23. On the other hand, when the aligning and pressing assembly 23 presses the lower side door 10, the fixed roller group 21 can also support the lower side door 10, so as to ensure that the lower side door 10 is in a horizontal state when being pressed, thereby helping to improve the welding quality.

[0041] As a specific embodiment of the open wagon lower side door replacement welding equipment provided by the utility model, referring to Figures 3 to 5 The aligning and lifting assembly 22 comprises a first lifting driving part 221, a first lifting frame 222 and a plurality of second rollers 223; the first lifting driving part 221 is connected to the first frame body 24, and the first lifting driving part 221 has a driving end extending upward; the first lifting frame 222 is connected to the driving end, and a plurality of first mounting seats 224 extending upward are arranged above the first lifting frame 222; the plurality of second rollers 223 are rotationally connected to the first mounting seats 224 one by one, and the main shafts of the second rollers 223 extend along a first direction; the second rollers 223 are arranged in two rows, and each row of second rollers 223 comprises a plurality of second rollers 223 arranged at intervals along a second direction; and the second rollers 223 can be lifted upward to protrude from the first rollers 211 under the driving of the first lifting frame 222, so as to transfer the lower side door 10.

[0042] In the embodiment, the first lifting driving part 221 is a cylinder, when the first lifting driving part 221 is started, the driving end thereof extends upward and lifts the first lifting frame 222, the first lifting frame 222 moves upward in the first frame body 24, the first mounting seat 224 penetrates through the top of the first frame body 24 upward, and the second rollers 223 lift the lower side door 10 upward to separate from the first rollers 211. The arrangement direction of the second rollers 223 is perpendicular to the arrangement direction of the first rollers 211, the second rollers 223 are used to transfer the lower side door 10 along the second direction, and then the lower side door 10 is transferred from the fixed roller group 21 to the aligning and pressing assembly 23.

[0043] The first lifting frame 222 is arranged in the interior of the first frame body 24, and the first mounting seat 224 penetrating through the first frame body 24 is used to drive the second rollers 223 to move upward to a supporting height higher than the first rollers 211, so as to provide a channel for the lower side door 10 to transfer to the aligning and pressing assembly 23.

[0044] As a specific embodiment of the open wagon lower side door replacement welding equipment provided by the utility model, referring to Figure 3 , Figure 6 and Figure 7The reverse-position lifting assembly 31 comprises a second lifting driving member 311, a second lifting frame 312 and a plurality of third rollers 313; the second lifting driving member 311 is connected to the second frame body 33, and the second lifting driving member 311 has a jacking end extending upward; the second lifting frame 312 is connected to the jacking end, and a plurality of second mounting seats 314 extending upward are arranged above the second lifting frame 312; the plurality of third rollers 313 are rotationally connected to the second mounting seats 314 one by one, and the main shafts of the third rollers 313 extend along the second direction; the third rollers 313 are arranged in two rows, and each row of the third rollers 313 comprises a plurality of third rollers 313 arranged at intervals along the first direction.

[0045] In the embodiment, after the front welding of the lower side door 10 is completed, the wall-mounted crane is used to transfer the lower side door 10 to the reverse-position pressing mechanism 3, so that the reverse-position pressing mechanism 3 does not have the fixed roller set 21 in the normal-position pressing mechanism 2, but directly receives the lower side door 10 by the reverse-position lifting assembly 31.

[0046] The reverse-position lifting assembly 31 adopts a structure similar to that of the normal-position lifting assembly 22, specifically, the second lifting driving member 311 is a cylinder, and when the second lifting driving member 311 is started, the jacking end thereof extends upward and jacks up the second lifting frame 312; the second lifting frame 312 moves upward in the second frame body 33, so that the second mounting seat 314 penetrates through the top of the second frame body 33 upward, and then the third roller 313 jacks up the lower side door 10 and horizontally abuts against the reverse-position pressing assembly 32, so as to push the lower side door 10 to the reverse-position pressing assembly 32.

[0047] As a specific embodiment of the open wagon lower side door switching and welding equipment provided by the utility model, referring to Figures 4 to 7 The normal-position pressing assembly 23 and the reverse-position pressing assembly 32 both comprise a lower pressing die 231, an upper pressing die 232 and a jacking driving member 233; the lower pressing die 231 is connected to the first frame body 24 or the second frame body 33, the jacking driving member 233 is connected to the first frame body 24 or the second frame body 33, and the upper pressing die 232 is connected to the outer end of the jacking driving member 233 and is arranged in a vertical relationship with the lower pressing die 231; the upper pressing die 232 can be pressed downward under the driving of the jacking driving member 233 to press the lower side door 10 in cooperation with the lower pressing die 231.

[0048] In the embodiment, in the positive position pressing assembly 23 or the reverse position pressing assembly 32, the upper pressing die 232 is lifted or pressed down by the jacking driving member 233 to cooperate with the fixed lower pressing die 231 to loosen or press the lower side door 10. The upper pressing die 232 and the lower pressing die 231 are arranged according to the shape of the lower side door 10. Specifically, in the positive position pressing assembly 23, the lower pressing die 231 has a concave die cavity, and the upper pressing die 232 has a downward protruding die core; in the reverse position pressing assembly 32, the upper pressing die 232 has a concave die cavity, and the lower pressing die 231 has an upward protruding die core; through the cooperation of the upper pressing die 232 and the lower pressing die 231, the protruding part or the recessed part on the surface of the lower side door 10 can be pressed, so as to effectively fix the lower side door 10 during welding, thereby ensuring the welding quality.

[0049] It should be noted that when the lower side door 10 is transferred to the positive position pressing assembly 23 or the reverse position pressing assembly 32, the positive position lifting assembly 22 or the reverse position lifting assembly 31 needs to be lifted first to horizontally transfer the lower side door 10 between the upper pressing die 232 and the lower pressing die 231. When the concave-convex surface on the lower side door 10 is aligned with the die cavity or the die core, the positive position lifting assembly 22 or the reverse position lifting assembly 31 needs to lower the lower side door 10 by a certain height to make the upper pressing die 232 press the lower side door 10 and close with the lower pressing die 231.

[0050] Specifically, in the positive position pressing mechanism 2, the first lifting driving member 221 drives the lower side door 10 to separate from the fixed roller set 21 and be higher than the lower pressing die 231, pushes the lower side door 10, so that the protruding part on the opposite side of the lower side door 10 is aligned with the concave die cavity of the lower pressing die 231. Then, the first lifting driving member 221 drives the lower side door 10 to move downward, so that the lower side door 10 is attached to the lower pressing die 231. At this time, the first roller 211 in the fixed roller set 21 is used to support the bottom of the lower side door 10, so that when the upper pressing die 232 and the lower pressing die 231 are closed to press the lower side door 10, the lower side door 10 can be in a horizontal supporting state, avoiding deformation of the lower side door 10 during positive position welding. After the front welding is completed, the jacking driving member 233 drives the upper pressing die 232 to lift up, the first lifting driving member 221 is started, the second roller 223 is lifted upward to lift the lower side door 10 to separate from the lower pressing die 231, the lower side door 10 is pulled back to correspond to the fixed roller set 21, the first lifting driving member 221 is retracted to reset, and the lower side door 10 falls on the fixed roller set 21, thereby completing the discharging.

[0051] In the reverse position pressing mechanism 3, the reverse position lifting assembly 31 lifts the lower side door 10 upward to be higher than the lower pressing die 231, pushes the lower side door 10, and aligns the concave part on the front of the lower side door 10 with the convex die core on the lower pressing die 231. Then, the reverse position lifting assembly 31 drives the lower side door 10 to move downward, so that the lower side door 10 is attached to the lower pressing die 231. At this time, the third roller 313 in the reverse position lifting assembly 31 keeps supporting the lower side door 10, so that the lower side door 10 can be in a horizontal supporting state when the upper pressing die 232 presses the lower side door 10 on the lower pressing die 231, and deformation of the lower side door 10 during reverse welding is avoided. After the reverse welding is completed, the jacking driving part 233 drives the upper pressing die 232 to lift up, the second lifting driving part 311 drives the lower side door 10 to move upward to be separated from the lower pressing die 231, and the lower side door 10 is pulled back to be connected with the wall row crane to complete the unloading.

[0052] As a specific embodiment of the gondola car lower side door switching welding equipment provided by the utility model, referring to Figures 4 to 7 , the jacking driving part 233 is located at the side of the lower pressing die 231, the upper pressing die 232 is connected with the jacking driving part 233 through the connecting rod assembly 25, the connecting rod assembly 25 includes the support rod 251 hinged on the first frame body 24 or the second frame body 33 and the linkage rod 252 hinged on the upper end of the support rod 251, the upper end of the support rod 251 is hinged with the middle part of the linkage rod 252 through a hinge shaft, the inner end of the linkage rod 252 is hinged with the upper pressing die 232, the outer end of the linkage rod 252 is hinged with the outer extension end of the jacking driving part 233, and the linkage rod 252 can vertically swing around the hinge shaft under the driving of the jacking driving part 233 to drive the upper pressing die 232 to lift up or press down.

[0053] In the embodiment, the fixed end of the jacking driving part 233 is connected with the outer lower part of the first frame body 24 or the second frame body 33, the outer extension end thereof extends upward and is connected with the upper pressing die 232 through the connecting rod assembly 25, which helps to reduce the overall height of the normal position pressing mechanism 2 or the reverse position pressing mechanism 3.

[0054] The jacking driving part 233 adopts a pneumatic cylinder, when the jacking driving part 233 is started, the outer extension end thereof extends upward, because the linkage rod 252 is hingedly connected with the support rod 251, when the jacking driving part 233 drives the linkage rod 252 to move upward, the linkage rod 252 will simultaneously vertically swing inward, and then drives the upper die block to move close to the lower die block and be closed.

[0055] As a specific embodiment of the gondola car lower side door switching welding equipment provided by the utility model, referring to Figure 6 and Figure 7 , the second frame body 33 is connected with the downward extending connecting plate 331, the lower end of the connecting plate 331 is connected with the horizontally extending positioning supporting plate 332, and the positioning supporting plate 332 is used for limiting the downward moving range of the second lifting frame 312.

[0056] In the embodiment, when the upper die 232 and the lower die 231 of the reverse-position pressing mechanism 3 cooperate to press the lower side door 10, the third roller 313 of the reverse-position lifting assembly 31 is supported on the bottom of the lower side door 10 to ensure the horizontal state of the lower side door 10, at this time, the positioning support plate 332 is supported on the bottom of the second lifting frame 312 to avoid the second lifting frame 312 from moving downward excessively to be separated from the support of the lower side door 10, that is, the positioning support plate 332 plays a role of positioning.

[0057] Specifically, the bottom of the connecting plate 331 has a horizontally extending connecting portion, and the positioning support plate 332 is connected to the bottom of the connecting portion by bolts, and in actual use, the height of the positioning support plate 332 can be adjusted by adding a gasket between the positioning support plate 332 and the connecting portion, so that the positioning support plate 332 meets the requirements of different support heights.

[0058] As a specific embodiment of the open wagon lower side door cutting and welding equipment provided by the utility model, referring to Figure 3 and Figure 8 , the feeding conveying platform 4 and the discharging conveying platform 5 each include a third frame body 42 and two rows of fourth rollers 41 rotatably connected to the third frame body 42, each row of fourth rollers 41 includes a plurality of fourth rollers 41 spaced apart along a first direction, and the main shafts of the fourth rollers 41 extend along a second direction.

[0059] In the embodiment, the feeding conveying platform 4, the discharging conveying platform 5 and the fixed roller set 21 in the forward-position pressing mechanism 2 can be connected to form a conveying channel along the first direction, so that the pushing and transferring of the lower side door 10 can be easily realized by only one worker, and the feeding and discharging of the lower side door 10 are facilitated. On the other hand, the feeding conveying platform 4 and the discharging conveying platform 5 are arranged to effectively combine the turnover cutting platform 6, the forward-position pressing mechanism 2 and the reverse-position pressing mechanism 3, so that the lower side door 10 can quickly circulate among the three maintenance stations, and the maintenance efficiency of the lower side door 10 is improved.

[0060] As a specific embodiment of the open wagon lower side door cutting and welding equipment provided by the utility model, referring to Figures 9 to 13The turnover cutting platform 6 comprises a fourth frame body 61, a first clamping frame 62 and a second clamping frame 63. The first clamping frame 62 comprises a first clamping plate 621 rotatably connected to the fourth frame body 61 and two first pin shafts 622 respectively connected to two ends of the first clamping plate 621, the first pin shafts 622 being used for penetrating through mounting holes in the upper end of the fold 101 of the lower side door 10 to fix the upper end of the lower side door 10 to the first clamping plate 621; the second clamping frame 63 comprises a second clamping plate 631 rotatably connected to the fourth frame body 61 and two second pin shafts 632 respectively connected to two ends of the second clamping plate 631, the second pin shafts 632 being used for pressing the lower end of the fold 101 of the lower side door 10 to the second clamping plate 631, and the first clamping plate 621 and the second clamping plate 631 being used for driving the lower side door 10 to vertically turn over in the fourth frame body 61.

[0061] In the embodiment, the lower side door 10 is arranged between the first clamping plate 621 and the second clamping plate 631, the first pin shafts 622 are connected to the first clamping plate 621 through the snap pins after penetrating through the mounting holes in the upper end of the fold 101, the lower end of the fold 101 is a flat strip-shaped plate, the lower end of the fold 101 is pressed between the second pin shafts 632 and the second clamping plate 631 through the connection of the second pin shafts 632 and the second clamping plate 631, so that the lower side door 10 is fixed between the first clamping plate 621 and the second clamping plate 631. Then, the first clamping plate 621 and the second clamping plate 631 are rotatably connected to the fourth frame body 61, and the lower side door 10 is driven to vertically turn over in the fourth frame body 61, so as to realize the front and back switching of the lower side door 10. After the front cutting of the lower side door 10 is completed, the lower side door 10 is turned over by 180°, the back of the lower side door 10 is cut, the lower half cut from the lower side door 10 is taken out, the lower side door 10 is turned over by 180° again, the front of the lower side door 10 faces upwards, and the lower side door 10 is spot-welded and spliced.

[0062] Specifically, the first clamping plate 621 adopts an angle steel structure, one straight angle side of the angle steel is used for supporting the upper edge of the door plate of the lower side door 10, the two ends of the first clamping plate 621 are respectively welded with mounting vertical plates 626, and the first pin shafts 622 are connected to the mounting vertical plates 626 through the snap pins. The second clamping plate 631 also adopts an angle steel structure, the two ends of the second clamping plate 631 are respectively welded with a vertical plate 633 and a mounting plate 634, the second pin shafts 632 are arranged between the vertical plate 633 and the mounting plate 634, and the lower end of the fold 101 is pressed to the second clamping plate 631.

[0063] Further, a water tank is arranged in the fourth frame body 61, which is used for depositing and filtering the smoke dust generated in the plasma cutting, so as to protect the surrounding environment from being polluted.

[0064] As a specific embodiment of the open wagon lower side door switching and welding equipment provided by the utility model, referring to Figures 9 to 11The fourth frame body 61 is connected with a bearing seat 611, the first clamping plate 621 is connected with a rotating shaft 623 matched with the bearing seat 611, the rotating shaft 623 is sleeved with a positioning disc 624 between the bearing seat 611 and the first clamping plate 621, the positioning disc is circumferentially arranged with a plurality of positioning holes 6241, and the bearing seat 611 is connected with a positioning pin 625 matched with the positioning holes 6241.

[0065] In the embodiment, when the lower door 10 fixed on the turnover cutting platform 6 is in the cutting state, the positioning pin 625 arranged through the bearing seat 611 is inserted into the positioning hole 6241 on the positioning disc 624, so that the first clamping plate 621 is fixed, and then the lower door 10 is fixed, thereby preventing the lower door 10 from being turned over during cutting. The positioning disc 624 is circumferentially arranged with a plurality of positioning holes 6241, so that the lower door 10 can be fixed at a plurality of turnover angles. Further, the second clamping plate 631 is also fixed by the above-mentioned manner, thereby increasing the reliability of the turnover cutting platform 6.

[0066] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for butt-welding the lower side doors of open wagons, characterized in that, The application relates to a welding robot device, which comprises a reverse cutting platform, a feeding conveying platform, a normal-position pressing mechanism and a discharging conveying platform arranged in sequence, one side of the normal-position pressing mechanism is provided with a welding robot, the outer periphery of the welding robot is provided with a reverse-position pressing mechanism, the reverse cutting platform is used for vertically overturning a lower side door to enable the lower side door to be cut on both sides, the normal-position pressing mechanism comprises a first frame body, a normal-position lifting assembly and a normal-position pressing assembly, a fixed roller group for supporting and translating the lower side door is arranged on the first frame body, the normal-position lifting assembly is connected to the first frame body and is used for jacking up the lower side door to enable the lower side door to be separated from the fixed roller group, the normal-position pressing assembly is connected to one side of the first frame body close to the welding robot and is used for receiving the lower side door on the normal-position lifting assembly and pressing the lower side door to be welded by the welding robot, the reverse-position pressing mechanism comprises a second frame body, a reverse-position lifting assembly and a reverse-position pressing assembly, the reverse-position lifting assembly is connected to the second frame body and is used for receiving the lower side door transferred from the discharging conveying platform, and the reverse-position pressing assembly is connected to one side of the second frame body close to the welding robot and is used for receiving the lower side door on the reverse-position lifting assembly and pressing the lower side door to be welded by the welding robot.

2. The gondola under-side door replacement welding apparatus as claimed in claim 1, wherein, A first direction is defined from the reverse cutting platform to the discharging conveying platform, a second direction is defined from the normal-position pressing mechanism to the welding robot, and the second direction is perpendicular to the first direction; the reverse-position pressing mechanism and the welding robot are arranged along the first direction and the reverse-position pressing mechanism is arranged close to the discharging conveying platform, the fixed roller group comprises two rows of first rollers, each row of the first rollers comprises a plurality of first rollers which are rotationally connected to the first frame body and are arranged along the first direction, and the main shafts of the first rollers extend along the second direction.

3. The gondola under-side door replacement welding apparatus as claimed in claim 2, wherein, The normal-position lifting assembly comprises: a first lifting driving element which is connected to the first frame body and has an upwardly extending driving end; a first lifting frame which is connected to the driving end and is provided with a plurality of upwardly extending first mounting seats above the first lifting frame; a plurality of second rollers which are rotationally connected to the first mounting seats one by one, the main shafts of the second rollers extend along the first direction, the second rollers are arranged in two rows, each row of the second rollers comprises a plurality of second rollers which are arranged along the second direction, and the second rollers can be moved upwardly to protrude from the first rollers under the driving of the first lifting frame to transfer the lower side door.

4. The gondola under-side door replacement welding apparatus as claimed in claim 2, wherein The reverse-position lifting assembly comprises: a second lifting driving element which is connected to the second frame body and has a jacking end extending upwardly; a second lifting frame which is connected to the jacking end and is provided with a plurality of second mounting seats extending upwardly above the second lifting frame; a plurality of third rollers which are rotationally connected to the second mounting seats one by one, the main shafts of the third rollers extend along the second direction, and the third rollers are arranged in two rows, each row of the third rollers comprises a plurality of third rollers which are arranged along the first direction.

5. The gondola underslung door replacement welding apparatus of claim 4 wherein, The positive and negative pressing assemblies each comprise a lower pressing die connected to the first or second frame body, an upper pressing die connected to the first or second frame body, and a pressing driving member connected to the first or second frame body.

6. The gondola underslung door replacement welding apparatus of claim 5 wherein, The pressing driving member is located at the side of the lower pressing die, and the upper pressing die is connected to the pressing driving member through a linkage assembly. The linkage assembly comprises a support rod hinged to the first or second frame body and a linkage rod hinged to the upper end of the support rod. The upper end of the support rod is hinged to the middle of the linkage rod through a hinge shaft. The inner end of the linkage rod is hinged to the upper pressing die, and the outer end of the linkage rod is hinged to the extended end of the pressing driving member. The linkage rod can vertically swing around the hinge shaft under the driving of the pressing driving member to drive the upper pressing die to lift or press down.

7. The gondola under-side door replacement welding apparatus of claim 5 wherein, The second frame body is connected with a downwardly extending connecting plate, and the lower end of the connecting plate is connected with a horizontally extending positioning support plate for limiting the downward displacement of the second lifting frame.

8. The gondola underslung door replacement welding apparatus of claim 2 wherein, The feeding and discharging conveying platforms each comprise a third frame body and two rows of fourth rollers rotatably connected to the third frame body. Each row of the fourth rollers comprises a plurality of fourth rollers spaced apart along the first direction, and the main shafts of the fourth rollers extend along the second direction.

9. The gondola underslung door replacement welding apparatus of claim 1 wherein, The turnover cutting platform comprises a fourth frame body, a first clamping frame, and a second clamping frame. The first clamping frame comprises a first clamping plate rotatably connected to the fourth frame body and two first pins connected to the two ends of the first clamping plate. The first pins are used to penetrate the mounting holes in the upper end of the lower side door to fix the upper end of the lower side door to the first clamping plate. The second clamping frame comprises a second clamping plate rotatably connected to the fourth frame body and two second pins connected to the two ends of the second clamping plate. The second pins are used to press the lower end of the lower side door to the second clamping plate. The first and second clamping plates are used to vertically turn over the lower side door in the fourth frame body.

10. The gondola underslung door replacement welding apparatus of claim 9, wherein, The fourth frame body is connected with a bearing seat, the first clamping plate is connected with a rotating shaft in rotational cooperation with the bearing seat, the rotating shaft is sleeved with a positioning disc between the bearing seat and the first clamping plate, the disc is circumferentially spaced apart with a plurality of positioning holes, and the bearing seat is connected with a positioning pin in plug-in cooperation with the positioning holes.

Images