Assembling and welding tool for monorail vehicle underframe end frame

Abstract

The utility model discloses an assembling and welding tool for an end frame of a monorail vehicle underframe. The tool comprises a base, a connecting part, a front end beam positioning mechanism, a girder positioning mechanism, a camber beam positioning mechanism, a quick pressing device, a cross beam limiting supporting rod and a positioning seat, wherein the connecting part, the front end beam positioning mechanism, the girder positioning mechanism, the camber beam positioning mechanism, the quick pressing device, the cross beam limiting supporting rod and the positioning seat are arranged on the base. The connecting parts are arranged at the two ends of the base and used for being connected with a positioner so that the tool can rotate by an angle conveniently. And the front end beam positioning mechanism, the girder positioning mechanism, the camber beam positioning mechanism and the cross beam limiting supporting rod are used for positioning a front end beam, a girder, a camber beam and a cross beam of the chassis end frame respectively. According to the assembly welding tool for the monorail vehicle underframe end frame, rapid, efficient and accurate product positioning and welding deformation control can be achieved, and welding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail vehicles, and in particular relates to a welding tool for assembling an end frame of a monorail vehicle underframe. Background Art

[0002] Normally, the production of riveted and welded parts for rail vehicles is done by marking and positioning on a platform, and then positioning and welding them for assembly. This method is very difficult to control the welding size and weld quality for products with high requirements, compact structure, and large welding volume (such as monorail chassis), and the welding efficiency is low and the labor intensity is high.

[0003] The end frame of the monorail vehicle underframe is a key component of the vehicle, and its welding and dimensional tolerance requirements are high. In order to ensure the welding quality and control product deformation, it is necessary to design a welding fixture for the end frame of the monorail vehicle underframe, which is mainly used for the auxiliary welding of the end frame of the monorail vehicle underframe. Summary of the invention

[0004] The technical problem to be solved by the utility model is: solving the problems of many welds and large deformation through tooling, ensuring the quality and position size of the welds; the heavy weight of the product, the many turning times and the high labor intensity.

[0005] The utility model aims to provide a welding tool for the end frame of a monorail vehicle chassis, which can realize fast, efficient and accurate positioning of the product and control welding deformation, thereby improving welding efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] The welding tooling of the end frame of the monorail vehicle chassis comprises a base and a connecting part arranged on the base, a front end beam positioning mechanism, a main beam positioning mechanism, a bent beam positioning mechanism, a quick clamping device, a cross beam limiting support rod and a positioning seat; the connecting part is arranged at both ends of the base for connecting with a positioner to facilitate the rotation angle of the tooling; the front end beam positioning mechanism, the main beam positioning mechanism, the bent beam positioning mechanism and the cross beam limiting support rod respectively position the front end beam, the main beam, the bent beam and the cross beam of the end frame of the chassis.

[0008] Furthermore, the base includes a base rectangular tube and a steel plate. A plurality of base rectangular tubes are welded and assembled to form a stable rectangular frame, and a plurality of steel plates are fixed on the rectangular frame. The base ensures the overall flatness of the working surface through an integral processing method.

[0009] Furthermore, the working surface is provided with a plurality of positioning holes for quickly plugging the quick clamping device and the positioning seat.

[0010] Furthermore, the front end beam positioning mechanism is arranged at the front end of the base, including a front end beam rectangular tube, a connecting plate and a front end beam positioning pin. The front end beam rectangular tube is fixed on the base, and a connecting plate is vertically arranged above the front end beam rectangular tube. The front end beam positioning pin is arranged on the connecting plate, and the front end beam positioning pin matches the hole position of the front end beam with each other.

[0011] Furthermore, the front end beam positioning mechanism is integrally connected to the base by bolts.

[0012] Furthermore, the beam positioning mechanism includes a beam support seat, a support plate and a beam positioning pin. The beam support seat is fixed on the base. The support plate is erected on the upper end of the beam support seat. The beam positioning pin is arranged on the support plate. The beam positioning pin matches the hole position of the beam.

[0013] Furthermore, the bending beam positioning mechanism includes a bending beam support seat, a bending beam positioning pin and a clamping cylinder. The bending beam support seat is located on both sides of the base. The bending beam support seat is provided with a bending beam positioning pin and a clamping cylinder. The bending beam positioning pin and the hole position of the bending beam match each other, and the clamping cylinder clamps and fixes the bending beam.

[0014] Furthermore, the quick pressing device includes a plug-in end, a connecting end and a pressing end; the plug-in end and the pressing end are parallel to each other and vertically connected together through the connecting end, and the bottom of the plug-in end is inserted into the positioning hole of the base; the pressing end moves up and down through the thread, and the connecting end is pressed and fixed by screwing the pressing end downward.

[0015] Furthermore, the beam limiting support rod and the quick clamping device are arranged opposite to each other and the two clamp and fix the beam.

[0016] Furthermore, the positioning seat is located on the side of the end of the curved beam.

[0017] The beneficial effects of the utility model are:

[0018] (1) The assembly welding fixture of the end frame of the monorail vehicle underframe of the utility model adopts a variety of positioning mechanisms, a beam limit support rod, a quick clamping device, and a positioning seat for positioning, clamping and fixing. During welding, welding deformation can be effectively controlled, product consistency and product quality can be improved, and the workload of product adjustment can be reduced.

[0019] (2) The welding fixture of the end frame of the monorail vehicle chassis of the utility model can change the fixture and product direction by a positioner, thereby avoiding multiple manual turning over and improving production efficiency.

[0020] The use of mechanical equipment to assist in displacement makes it safe and reliable, reduces the labor intensity of operators and improves safety.

[0021] (3) The quick clamping device is a consumable part that is easily damaged and is installed by plug-in. It is convenient for subsequent replacement and maintenance, reducing tooling maintenance costs.

[0022] (4) The welding fixture for the end frame of the monorail vehicle underframe of the utility model has a reasonable design and a compact structure; it does not require an additional working platform and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the assembly welding tooling of the end frame of the monorail vehicle chassis of the utility model;

[0024] Figure 2 is a schematic diagram of the base;

[0025] Figure 3 It is a schematic diagram of the positioner connection part;

[0026] Figure 4 It is a schematic diagram of the front end beam positioning mechanism;

[0027] Figure 5 It is a schematic diagram of the beam positioning mechanism;

[0028] Figure 6 is a schematic diagram of the bending beam positioning mechanism;

[0029] Figure 7 It is a schematic diagram of the quick clamping device and the beam limit support rod;

[0030] Figure 8 It is a schematic diagram of the positioning seat;

[0031] Fig. 9 It is a horizontal state of the welding fixture of the end frame of the monorail vehicle chassis of the utility model, and a schematic diagram of the product being loaded into the fixture;

[0032] Fig.10 It is a schematic diagram of the welding fixture for loading the product into the end frame of the monorail vehicle chassis of the utility model, and the fixture is in a vertical state;

[0033] Among them: 1. base, 2. connection part, 3. front beam positioning mechanism, 4. beam positioning mechanism, 5. bending beam positioning mechanism, 6. quick clamping device, 7. beam limit support rod, 8. positioning seat;

[0034] 11. rectangular tube of base, 12. steel plate, 13. positioning hole;

[0035] 21. chassis interface, 22. positioner interface;

[0036] 31. rectangular tube of front beam, 32. connecting plate, 33. positioning pin of front beam;

[0037] 41. beam support seat, 42. support plate, 43. beam positioning pin;

[0038] 51. bending beam support seat, 52. bending beam positioning pin, 53. pressing cylinder;

[0039] A-product; B-tooling. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0041] like Figure 1 As shown, the welding fixture B of the end frame of the monorail vehicle underframe of this embodiment includes a base 1, a connecting part 2, a front end beam positioning mechanism 3, a main beam positioning mechanism 4, a bent beam positioning mechanism 5, a quick clamping device 6, a cross beam limiting support rod 7 and a positioning seat 8; the connecting part 2, the front end beam positioning mechanism 3, the main beam positioning mechanism 4, the bent beam positioning mechanism 5, the quick clamping device 6, the cross beam limiting support rod 7 and the positioning seat 8 are arranged on the base 1, which are together used to limit and fix the product A.

[0042] Among them, Figure 2 As shown, the base 1 serves as the basis of the entire tooling B, and includes a base rectangular tube 11 and a steel plate 12. A plurality of base rectangular tubes 11 are welded and assembled to form a stable rectangular frame. A plurality of steel plates 12 are fixed on the rectangular frame. After the above welding is completed, the overall flatness of the working surface is ensured by an integral processing method. A plurality of positioning holes are processed on the working surface for subsequent placement of the quick clamping device 6 and the positioning seat 8, so as to realize the quick installation and disassembly of the quick clamping device 6 and the positioning seat 8.

[0043] Among them, Figure 3 As shown, the connection part 2 is welded with steel material, one end interface (base interface 21) is welded to the base 1, and one end reserved interface (positioner interface 22) is consistent with the positioner installation interface, so as to realize the interchangeability of the positioners.

[0044] Among them, Figure 4 As shown, the front end beam positioning mechanism 3 is used to position the front end beam of the chassis end frame, and the front end beam positioning mechanism 3 is arranged at the front end of the base 1.

[0045] The front beam positioning mechanism 3 includes a front beam rectangular tube 31, a connecting plate 32 and a front beam positioning pin 33. The front beam rectangular tube 31 is fixed to the base 1 by bolt connection. The connecting plates 32 are vertically arranged above the two ends of the front beam rectangular tube 31. The connecting plates 32 are provided with front beam positioning pins 33. The front beam positioning pins 33 match the holes of the front beam. The front beam positioning mechanism 3 is connected as a whole by bolts to ensure the overall flatness and the concentricity of the front beam positioning pins 33 and the holes of the front beam.

[0046] Among them, Figure 5 As shown, the beam positioning mechanism 4 includes a beam support seat 41, a support plate 42 and a beam positioning pin 43. The beam support seat 41 is fixed on the base 1. A support plate 42 is vertically arranged on the upper end of the beam support seat 41. The support plate 42 is provided with a beam positioning pin 43. The beam positioning pin 43 matches the hole position of the beam. The beam positioning mechanism 4 is arranged at one of the positioning points of the product A in the tooling B to reduce manual measurement and ensure the consistency of the product A.

[0047] Among them, Figure 6 As shown, the bending beam positioning mechanism 5 is used to position the bending beams on both sides, strengthen the supporting strength of the bending beams, and prevent welding deformation of product A.

[0048] The bending beam positioning mechanism 5 includes a bending beam support seat 51, a bending beam positioning pin 52 and a pressing cylinder 53. The bending beam support seat 51 is located at both sides of the base 1. The bending beam support seat 51 is provided with a bending beam positioning pin 52, and the bending beam positioning pin 52 matches the hole position of the bending beam. The bending beam support seat 51 is also provided with a pressing cylinder 53 for pressing and fixing the bending beam.

[0049] Among them, Figure 7 As shown, the quick clamping device 6 can be quickly plugged in and out (the quick clamping device 6 is plugged into the positioning hole of the base 1 and can be quickly installed and removed) to allow the product A to be quickly put on and off the tooling B. In addition, it can also rotate 360° around the plug-in position to quickly clamp and clamp securely.

[0050] Specifically, Figure 7 As shown, the quick clamping device 6 includes a plug-in end, a connecting end and a clamping end; the plug-in end and the clamping end are parallel to each other and vertically connected together through the connecting end, and the bottom of the plug-in end is inserted into the positioning hole of the base 1; the clamping end moves up and down through the thread; the clamping end is provided with a thread that matches and connects with the corresponding position of the connecting end, and the protruding end of the connecting end is driven to clamp the product A and the tooling B by screwing the clamping end downward.

[0051] In order to ensure the front and rear positions of the beam are stable during the welding process, the beam limiting support rod 7 is used in conjunction with the quick clamping device 6 to position and fix the beam, so as to achieve rapid disassembly and assembly and improve labor efficiency. The beam limiting support rod 7 and the quick clamping device 6 are arranged opposite to each other, and the beam is clamped and fixed between the two. The mounting seat is arranged on the base 1, and the beam limiting support rod 7 is arranged on the mounting seat. The beam limiting support rod 7 is against the front side of the beam, and the quick clamping device 6 is located on the rear side of the beam to clamp and fix the beam.

[0052] like Figure 8 As shown, the positioning seat 8 is one of the product positioning points in the tooling B, which can reduce manual measurement and ensure the consistency of product B. The positioning seat 8 is set on the base 1 and is located on the end side of the curved beam. The positioning seat 8 is inserted into the positioning hole of the base 1 and can be quickly installed and removed.

[0053] The process of using the welding tool B of the end frame of the monorail vehicle underframe of this embodiment to assist welding is as follows:

[0054] Adjust tooling B to a horizontal state, according to Fig. 9 After loading product A into tooling B, quickly press it and start welding. Weld the front weld according to the welding process requirements.

[0055] Use a positioner to rotate the angle of tooling B, place product A vertically, and weld the inner weld according to the welding process requirements.

[0056] After the entire product A is welded, remove the product A from the tooling B.

[0057] The above description is only a preferred embodiment of the present invention and does not constitute a limitation on the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The welding tool for the end frame of the monorail vehicle chassis is characterized by: The tooling includes a base and a connecting part arranged on the base, a front end beam positioning mechanism, a main beam positioning mechanism, a bent beam positioning mechanism, a quick clamping device, a cross beam limiting support rod and a positioning seat; the connecting part is arranged at both ends of the base for connecting with the positioner to facilitate the rotation angle of the tooling; the front end beam positioning mechanism, the main beam positioning mechanism, the bent beam positioning mechanism, and the cross beam limiting support rod respectively position the front end beam, main beam, bent beam and cross beam of the end frame of the chassis.

2. The assembly welding tool for the end frame of the monorail vehicle underframe according to claim 1, characterized in that: The base comprises a base rectangular tube and a steel plate. A plurality of base rectangular tubes are welded and assembled to form a stable rectangular frame, and a plurality of steel plates are fixed on the rectangular frame. The base ensures the overall flatness of the working surface through an integral processing method.

3. The welding tool for the end frame of the monorail vehicle underframe as claimed in claim 2, characterized in that: The working surface is provided with a plurality of positioning holes for quickly plugging the quick pressing device and the positioning seat.

4. The assembly welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The front end beam positioning mechanism is arranged at the front end of the base, including a front end beam rectangular tube, a connecting plate and a front end beam positioning pin. The front end beam rectangular tube is fixed on the base, a connecting plate is vertically arranged above the front end beam rectangular tube, and a front end beam positioning pin is arranged on the connecting plate. The front end beam positioning pin matches the hole position of the front end beam.

5. The assembly welding tool for the end frame of the monorail vehicle underframe as claimed in claim 4, characterized in that: The front end beam positioning mechanism is integrally connected to the base through bolts.

6. The welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The beam positioning mechanism includes a beam support seat, a support plate and a beam positioning pin. The beam support seat is fixed on the base. A support plate is vertically arranged on the upper end of the beam support seat. The beam positioning pin is arranged on the support plate. The beam positioning pin matches the hole position of the beam.

7. The welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The bending beam positioning mechanism includes a bending beam support seat, a bending beam positioning pin and a clamping cylinder. The bending beam support seat is located on both sides of the base. The bending beam support seat is provided with a bending beam positioning pin and a clamping cylinder. The bending beam positioning pin and the hole position of the bending beam match each other, and the clamping cylinder clamps and fixes the bending beam.

8. The assembly welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The quick clamping device includes a plug-in end, a connecting end and a clamping end; the plug-in end and the clamping end are parallel to each other and vertically connected together through the connecting end, and the bottom of the plug-in end is inserted into the positioning hole of the base; the clamping end moves up and down through the thread, and the connecting end is clamped and fixed by screwing the clamping end downward.

9. The assembly welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The crossbeam limiting support rod and the quick pressing device are arranged opposite to each other and the two clamp and fix the crossbeam.

10. The assembly welding tool for the end frame of the monorail vehicle underframe according to any one of claims 1 to 3, characterized in that: The positioning seat is located on the side of the end of the curved beam.

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