Welding tool for locomotive power unit mounting frame

Abstract

The utility model relates to the technical field of fluency strips, in particular to a welding tool for a locomotive power unit mounting frame. The welding tool comprises a working platform, engine beam jacking assemblies which are symmetrical to each other are arranged at one end of the working platform, an engine beam supporting assembly is arranged between the two engine beam jacking assemblies, and end beam jacking assemblies which are symmetrical to each other are arranged at the other end of the working platform; an end beam supporting and positioning assembly is arranged between the two end beam jacking assemblies, cross beam supporting and positioning assemblies which are symmetrical to each other are arranged on the working platform, and the two cross beam supporting and positioning assemblies are arranged close to the end beam supporting and positioning assembly and located on the two sides of the end beam supporting and positioning assembly. The mounting frame comprises a plurality of independent functional assemblies, each functional assembly is provided with a high-precision positioning structure, the precision of the mounting frame can be guaranteed, welding deformation of the mounting frame can be prevented, the performance and reliability of the mounting frame can be improved, manpower and time investment can be reduced, production efficiency can be improved, and the mounting frame is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of fluent bars, and particularly relates to a welding tool for an installation frame of a locomotive power unit. Background Technique

[0002] In the locomotive manufacturing industry, the installation frame in the power unit, as a key component, can integrate components such as a diesel engine, an auxiliary generator, a diesel engine auxiliary system, a cooling system, an electric control system, a suspension system, and a hydraulic oil tank into a large component and install it under the vehicle. Therefore, the processing quality of the installation frame is particularly crucial. The tooling design of the installation frame is a key link to ensure that the power unit can be efficiently and accurately completed from production to installation. With the continuous development of the locomotive manufacturing industry, the demand for the tooling of the power unit assembly is also increasing. The early tooling design was relatively simple and mainly met the basic assembly requirements. However, with the increase in the complexity of the power unit and the improvement of manufacturing accuracy, the requirements for tooling design are also getting higher and higher.

[0003] Due to the increasingly complex structure of the installation frame of the power unit, the early tooling can no longer meet the welding requirements. Using traditional manual assembly and welding, the welding workload is large, and deformation is likely to occur after welding. If the tooling is not used to control the welding deformation, it is very difficult for the produced installation frame to meet the use requirements. Therefore, designing a tooling fixture that can meet the processing and manufacturing of an installation frame with a complex structure is of great significance for improving the processing quality, production efficiency, and reducing the processing cost of the installation frame of the power unit.

[0004] Chinese Patent with the application number 201320577061.5 discloses a locomotive frame assembly tooling. This locomotive frame assembly tooling includes: a platform base; two groups of side beam positioning devices, one group of cross beam positioning devices, a front end beam positioning device, a traction beam positioning device, four groups of side beam slide rails, and one group of cross beam slide rails arranged on the platform base; wherein, the two groups of side beam positioning devices, one group of cross beam positioning devices, four groups of side beam slide rails, one group of cross beam slide rails, the front end beam positioning device, and the traction beam positioning device form a "day" - shaped structure, and the lower cover plate of the one group of cross beam positioning devices and the lower cover plates of the four groups of side beam positioning devices are in a bent - form fit. This tooling realizes the accurate positioning of each positioning device through the mutual correspondence between the two groups of side beam positioning devices, one group of cross beam positioning devices, the front end beam positioning device, the traction beam positioning device and the positioning elements of the components, and ensures the overall dimensions of the frame after assembly. However, when the interface dimensions need to be polished during the use of this tooling, it is necessary to repeatedly move the side beams through the four groups of side beam slide rails to achieve assembly. Its operation process is complex, which will increase the labor intensity and reduce the production efficiency. This assembly tooling has a relatively complex structure and is only applicable to the processing of 30T axle - load freight locomotive frames. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems that the locomotive power unit mounting frame has a complex structure, is easily deformed during welding, traditional tooling can no longer meet the positioning welding requirements of the mounting frame, the existing locomotive component group has a complex tooling operation process, high labor intensity, and low production efficiency. The utility model provides a welding tool for the locomotive power unit mounting frame, which is divided into multiple independent functional components. Each functional component has a high-precision positioning structure, which can ensure the accuracy of the mounting frame and prevent its welding deformation, thereby improving the performance and reliability of the mounting frame, reducing the investment of manpower and time, and improving production efficiency. It has a simple structure and is easy to operate.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a welding tool for a locomotive power unit mounting frame, comprising a working platform, one end of the working platform is provided with a mutually symmetrical engine beam tightening assembly, an engine beam support assembly is provided between the two engine beam tightening assemblies, the other end of the working platform is provided with a mutually symmetrical end beam tightening assembly, an end beam support positioning assembly is provided between the two end beam tightening assemblies, the end beam support positioning assembly includes a temperature control valve mounting seat positioning plate and an intercooler mounting seat positioning plate arranged on both sides thereof, the temperature control valve mounting seat positioning plate and the intercooler mounting seat positioning plate are both provided with positioning holes, the working platform is provided with mutually symmetrical crossbeam support positioning assemblies, the two crossbeam support positioning assemblies are arranged close to the end beam support positioning assembly and are located on both sides of the end beam support positioning assembly, the crossbeam support positioning assembly includes a first positioning plate and a second positioning plate, the first positioning plate is provided with a first positioning seat, the first positioning seat is provided with a first positioning hole, and the second positioning plate is provided with a second positioning seat.

[0007] Furthermore, the end beam support positioning assembly also includes an end beam support seat, the end beam support seat is installed on the working platform, the temperature control valve mounting seat positioning plate and the intercooler mounting seat positioning plate are respectively installed on the end beam support seat, the temperature control valve mounting seat positioning plate is provided with a temperature control valve mounting seat positioning hole, and the intercooler mounting seat positioning plate is provided with an intercooler mounting seat positioning hole.

[0008] Furthermore, a centering plate is provided on the positioning plate of the temperature control valve mounting seat. The centering plate is located at one end of the positioning hole of the temperature control valve mounting seat and is arranged close to the edge of the positioning plate of the temperature control valve mounting seat. The centering plate has an L-shaped structure.

[0009] Furthermore, the beam support positioning assembly also includes a beam support seat, which is installed on the working platform, and the first positioning plate and the second positioning plate are respectively installed on the beam support seat, and the first positioning plate is arranged away from one end of the end beam support positioning assembly, and a supporting seat is also provided on one of the first positioning plates, and the supporting seat is arranged opposite to the first positioning seat, and a first fixed seat positioning hole is provided on the supporting seat.

[0010] Furthermore, a third positioning plate and a fourth positioning plate are provided on the beam support seat, the third positioning plate is arranged between the first positioning plate and the second positioning plate, and is arranged higher than the first positioning plate and the second positioning plate, the third positioning seat and the second fixed seat positioning hole are provided on the third positioning plate, the upper end of the third positioning seat is provided with a mounting plate positioning groove, the fourth positioning plate is located at one end of the second positioning plate and is arranged higher than the second positioning plate, the fourth positioning seat and the third fixed seat positioning hole are provided on the fourth positioning plate, and the upper end of the fourth positioning seat is provided with a support plate positioning groove.

[0011] Furthermore, the fourth positioning seat includes two vertical plates arranged perpendicular to each other, both vertical plates are provided with support plate positioning grooves, and the two support plate positioning grooves are perpendicular to each other.

[0012] Furthermore, the engine beam tightening assembly and the end beam tightening assembly have the same structure, both including a base, a bracket, a mounting block and a tightening bolt. The base is detachably mounted on the work platform, the bracket is mounted on the base, the mounting block is mounted on the bracket, and the tightening bolt is threadedly connected to the mounting block.

[0013] Furthermore, the engine beam support assembly includes a plurality of support screws, and the plurality of support screws are threadedly connected to the working platform.

[0014] Furthermore, connecting plates for connecting to positioners are respectively provided at both ends of the working platform.

[0015] Furthermore, the second positioning seat has a circular structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) The utility model is a mounting frame welding fixture. Through the mutual cooperation of the engine beam tightening assembly, the engine beam supporting assembly, the end beam tightening assembly, the end beam supporting positioning assembly and the cross beam supporting positioning assembly, the utility model can accurately locate the positions of the various components of the mounting frame, ensure the accuracy during the assembly process, and ensure the overall size of the mounting frame after assembly. The mounting frame is positioned by the fixture, which can prevent welding deformation, thereby improving the performance and reliability of the mounting frame. It can meet the welding requirements of complex mounting frame structures, has a simple structure and is easy to operate.

[0018] (2) The utility model installation frame welding tool includes multiple independent functional components. In order to ensure the accurate installation of the installation frame components, each functional component has a high-precision positioning structure, which reduces the errors caused by manual dimensional measurement during the assembly process of each component, and can ensure the efficient and accurate assembly and disassembly of the components of the installation frame, reducing the investment of manpower and time, and improving the overall production efficiency.

[0019] (3) The utility model is provided with connecting plates at both ends of the working platform for the installation frame welding tool. The connecting plates can be connected to the positioner during the production process to better rotate the workpiece, thereby ensuring that the weld seam of the round tube on the installation frame is in a flat welding position, ensuring that the installation frame has a better welding angle, controlling the deformation amount, saving more time for processing accuracy, and thus better ensuring the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the welding tooling for the locomotive power unit mounting frame of the utility model.

[0021] Figure 2 This is a structural front view of the utility model for the welding tooling of the locomotive power unit mounting frame.

[0022] Figure 3 This is a top view of the structure of the welding tool for the locomotive power unit installation frame of the utility model.

[0023] Figure 4 This is a schematic diagram of the application of the utility model for the welding tooling of the locomotive power unit mounting frame.

[0024] In the figure: 1. Working platform, 2. Base, 3. Bracket, 4. Mounting block, 5. Jacking bolt, 6. Support screw, 7. End beam support seat, 8. Temperature control valve mounting seat positioning plate, 81. Temperature control valve mounting seat positioning hole, 9. Centering plate, 10. Intercooler mounting seat positioning plate, 101. Intercooler mounting seat positioning hole, 11. Crossbeam support seat, 12. First positioning plate, 13. First positioning seat, 131. First positioning hole, 14. Support seat, 141. First fixing seat positioning hole, 15. Third positioning plate, 151. Second fixing seat positioning Hole, 16. Third positioning seat, 161. Mounting plate positioning groove, 17. Second positioning plate, 18. Second positioning seat, 19. Fourth positioning plate, 191. Third fixing seat positioning hole, 20. Fourth positioning seat, 201. Vertical plate, 202. Support plate positioning groove, 21. Connecting plate, 22. Engine beam, 23. End beam, 24. Temperature control valve mounting seat, 25. Intercooler mounting seat, 26. Crossbeam, 27. Exhaust after-treatment device mounting seat, 28. Fixed seat, 29. Mounting plate, 30. Diesel engine mounting seat, 31. Support plate. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0026] like Figure 1-3The welding tool shown is for a locomotive power unit mounting frame, comprising a working platform 1, one end of the working platform 1 being provided with mutually symmetrical engine beam tightening assemblies, an engine beam support assembly being provided between the two engine beam tightening assemblies, the engine beam support assembly comprising four support screws 6, the four support screws 6 being threadedly connected to the working platform 1 for supporting the engine beam 22; the other end of the working platform 1 being provided with mutually symmetrical end beam tightening assemblies, the structure of the end beam tightening assemblies being the same as that of the engine beam tightening assemblies, both comprising a base 2, a bracket 3, a mounting block 4 and a tightening bolt 5, the base 2 being detachably mounted on the working platform 1 by bolts, the bracket 3 being mounted on the base 2, the mounting block 4 being mounted on the bracket 3, and the tightening bolt 5 being threadedly connected to the mounting block 4.

[0027] An end beam support and positioning assembly is arranged between the two end beam tightening assemblies, and the end beam support and positioning assembly includes an end beam support seat 7, which is installed on the working platform 1, and a temperature control valve mounting seat positioning plate 8 and an intercooler mounting seat positioning plate 10 on both sides thereof are installed on the end beam support seat 7. The height of the temperature control valve mounting seat positioning plate 8 is higher than the height of the intercooler mounting seat positioning plate 10, and a temperature control valve mounting seat positioning hole 81 and a centering plate 9 are provided on the temperature control valve mounting seat positioning plate 8. The centering plate 9 is located at one end of the temperature control valve mounting seat positioning hole 81 and is arranged close to the edge of the temperature control valve mounting seat positioning plate 8. The centering plate 9 is L-shaped structure, and the intercooler mounting seat positioning plate 10 is provided with an intercooler mounting seat positioning hole 101.

[0028] The working platform 1 is provided with mutually symmetrical beam support positioning assemblies, which are arranged close to the end beam support positioning assembly and on both sides of the end beam support positioning assembly. The beam support positioning assembly includes a beam support seat 11, and the beam support seat 11 is installed on the working platform 1. The first positioning plate 12, the third positioning plate 15, the second positioning plate 17 and the fourth positioning plate 19 are installed on the beam support seat 11 in sequence. The first positioning plate 12 is arranged away from one end of the end beam support positioning assembly, and the fourth positioning plate 19 is arranged close to one end of the end beam support positioning assembly. The first positioning plate 12 and the third positioning plate 15 are arranged at the same horizontal height, the second positioning plate 17 and the fourth positioning plate 19 are arranged at the same horizontal height, and the height of the second positioning plate 17 and the fourth positioning plate 19 is higher than the height of the first positioning plate 12 and the third positioning plate 15. The height setting of the four positioning plates is mainly to meet the structural requirements of the installation frame, and can also be adaptively adjusted according to different models of installation frame structures.

[0029] The first positioning plate 12 is provided with a first positioning seat 13 for defining the position of the exhaust gas after-treatment device mounting seat 27, and the first positioning seat 13 is provided with a first positioning hole 131 that matches the exhaust gas after-treatment device mounting seat 27. A first positioning plate 13 located on one side of the working platform 1 is also provided with a supporting seat 14, and the supporting seat 14 is arranged opposite to the first positioning seat 13, and the supporting seat 14 is provided with a first fixing seat positioning hole 141; a second positioning seat 18 for defining the position of the diesel engine mounting seat 30 is provided on the second positioning plate 17, and the second positioning seat 18 is a circular structure for matching with the circular hole on the diesel engine mounting seat 30; a third positioning plate 15 is provided with a third positioning plate 18 for defining the position of the mounting plate 29 on the crossbeam 26 The positioning seat 16 and the second fixed seat positioning hole 151, the upper end of the third positioning seat 16 is provided with a mounting plate positioning groove 161, and the mounting plate positioning groove 161 is a U-shaped structure; the fourth positioning plate 19 is provided with a fourth positioning seat 20 and a third fixed seat positioning hole 191 for limiting the position of the support plate 31 on the beam 26, the fourth positioning seat 20 and the third fixed seat positioning hole 191 are diagonally arranged, and the upper end of the fourth positioning seat 20 is provided with a support plate positioning groove 202, specifically, the fourth positioning seat 20 includes two vertical plates 201 arranged perpendicular to each other, and the two vertical plates 201 are both provided with support plate positioning grooves 202, and the two support plate positioning grooves 202 are perpendicular to each other, and the two support plate positioning grooves 202 are both U-shaped structures.

[0030] Preferably, connecting plates 21 for connecting to a positioner are provided at both ends of the work platform 1. During the production process, the connecting plates 21 are connected to the positioner to better rotate the workpiece, ensuring that the round pipe weld on the mounting frame is in a flat welding position, giving the mounting frame a better welding angle, controlling deformation, saving more time for processing accuracy, and thus better ensuring product reliability.

[0031] The utility model is a welding tool for the installation frame of the locomotive power unit. Figure 4As shown, the engine beam 22, end beam 23 and cross beams 26 to be welded are placed in pairs on the work platform 1, and the engine beam 22 is clamped and fixed by the engine beam tightening assembly. The four support screws 6 on the work platform 1 are adjusted to support the engine beam 22, and the end beam 23 is clamped and fixed by the end beam tightening assembly. The end beam support positioning assembly provides additional support or auxiliary positioning for the workpiece, and the placement position of the temperature control valve mounting seat 24 is limited by the temperature control valve mounting seat positioning hole 81, and the placement position of the intercooler mounting seat 25 is limited by the intercooler mounting seat positioning hole 101. The processing position of the entire mounting frame can be limited by the centering plate 9. The overall position of the mounting frame can be accurately positioned by setting the engine beam tightening assembly and the end beam tightening assembly. The workpiece is clamped by the tightening assembly to ensure that the workpiece will not move or offset during the processing or assembly process to meet the accuracy requirements of assembly or processing. At the same time, the tightening assembly can be disassembled for easy installation.

[0032] The two crossbeam support positioning assemblies are used to support and position the positions of the two crossbeams 26, provide stable support for the workpiece, and ensure that the workpiece will not be deformed or shifted due to gravity or other external forces during processing or assembly. The first positioning seat 13 is used to limit the position of the exhaust gas after-treatment device mounting seat 27, and the supporting seat 14 is used to support the fixing seat 28 on the crossbeam 26, and its position is limited by the first fixing seat positioning hole 141; the second positioning seat 18 is used to limit the position of the diesel engine mounting seat 30 on the crossbeam 26. The diesel engine mounting seat 30 is also an important component for fixing the diesel engine of the locomotive. The accuracy of the tooling installation is also to ensure the diesel engine is fixed. Accuracy of oil engine installation; the mounting plate positioning groove 161 on the third positioning seat 16 is used to limit the position of the mounting plate 29 on the beam 26, the second fixing seat positioning hole 151 is used to limit the position of the fixing seat 28 on the beam 26, the support plate positioning groove 202 on the fourth positioning seat 20 is used to limit the position of the support plate 31 on the beam 26, and the third fixing seat positioning hole 191 is used to limit the position of the fixing seat 28 on the beam 26. The positioning restrictions of the various structures in the beam positioning support assembly can better limit the positions of the various components on the beam in the installation frame, thereby ensuring the stability of the installation frame welding.

[0033] The utility model discloses that the installation frame welding tool is divided into a plurality of independent functional components, so that the components can be easily disassembled and assembled, and replacement and maintenance are convenient. In order to ensure the accurate installation of the installation frame components, each component has a high-precision positioning structure. Through the mutual cooperation of the engine beam tightening component, the engine beam support component, the end beam tightening component, the end beam support positioning component and the cross beam support positioning component, the position of each component of the installation frame can be accurately positioned, the accuracy of the assembly process is ensured, the overall size of the installation frame after assembly is ensured, the error caused by manual size measurement of each component during the assembly process is reduced, the efficient and accurate assembly and disassembly of each component of the installation frame is ensured, the investment of manpower and time is reduced, and the overall production efficiency is improved. The installation frame is positioned by the tooling to prevent welding deformation, thereby improving the performance and reliability of the installation frame, which can meet the welding use of complex installation frame structures, has a simple structure and is easy to operate.

[0034] The above content is a further detailed description of the present invention in conjunction with the preferred technical solution, and the specific implementation of the present invention cannot be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered as within the scope of protection of the present invention.

Claims

1. A welding tool for a locomotive power unit mounting frame, characterized by: The control panel is connected with the control panel to check whether the adjustment means are effective in adjusting the speed of the engine to be used and the adjustment means are connected, and a plurality of control panels are connected, wherein the plurality of control panels are connected, and the plurality of control panels are connected, wherein the plurality of control panels are connected, and the plurality of control panels are connected.

2. The welding tool for a locomotive power unit mounting frame according to claim 1, characterized in that: The end beam support positioning assembly also includes an end beam support seat, which is installed on the working platform. The temperature control valve mounting seat positioning plate and the intercooler mounting seat positioning plate are respectively installed on the end beam support seat. The temperature control valve mounting seat positioning plate is provided with a temperature control valve mounting seat positioning hole, and the intercooler mounting seat positioning plate is provided with an intercooler mounting seat positioning hole.

3. The welding tool for a locomotive power unit mounting frame according to claim 2, characterized in that: A centering plate is also provided on the positioning plate of the temperature control valve mounting seat. The centering plate is located at one end of the positioning hole of the temperature control valve mounting seat and is close to the edge of the positioning plate of the temperature control valve mounting seat. The centering plate has an L-shaped structure.

4. The welding tool for a locomotive power unit mounting frame according to claim 1, characterized in that: The beam support positioning assembly also includes a beam support seat, which is installed on the work platform. The first positioning plate and the second positioning plate are respectively installed on the beam support seat. The first positioning plate is arranged away from one end of the end beam support positioning assembly, and a supporting seat is also provided on one of the first positioning plates, and the supporting seat is arranged opposite to the first positioning seat, and a first fixed seat positioning hole is provided on the supporting seat.

5. The welding tool for a locomotive power unit mounting frame according to claim 4, characterized in that: The crossbeam support seat is also provided with a third positioning plate and a fourth positioning plate, the third positioning plate is arranged between the first positioning plate and the second positioning plate, and is arranged higher than the first positioning plate and the second positioning plate, the third positioning plate is provided with a third positioning seat and a second fixed seat positioning hole, the upper end of the third positioning seat is provided with a mounting plate positioning groove, the fourth positioning plate is located at one end of the second positioning plate and is arranged higher than the second positioning plate, the fourth positioning plate is provided with a fourth positioning seat and a third fixed seat positioning hole, and the upper end of the fourth positioning seat is provided with a support plate positioning groove.

6. The welding tool for a locomotive power unit mounting frame according to claim 5, characterized in that: The fourth positioning seat includes two vertical plates arranged perpendicular to each other, and both vertical plates are provided with support plate positioning grooves, and the two support plate positioning grooves are perpendicular to each other.

7. The welding tool for a locomotive power unit mounting frame according to claim 1, characterized in that: The engine beam tightening assembly and the end beam tightening assembly have the same structure, both including a base, a bracket, a mounting block and a tightening bolt. The base can be detachably mounted on the work platform, the bracket is mounted on the base, the mounting block is mounted on the bracket, and the tightening bolt is threadedly connected to the mounting block.

8. The welding tool for a locomotive power unit mounting frame according to claim 1, characterized in that: The engine beam support assembly includes a plurality of support screws, which are threadedly connected to the working platform.

9. The welding tool for a locomotive power unit mounting frame according to claim 1, characterized in that: Both ends of the working platform are respectively provided with connecting plates for connecting with the positioner.

10. A welding tool for a locomotive power unit mounting frame according to any one of claims 1 to 9, characterized in that: The second positioning seat has a circular structure.

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