Bogie assembling tool and bogie assembling method

Abstract

The invention provides a bogie assembling tool and a bogie assembling method, and relates to the technical field of vehicle tools.The bogie assembling tool comprises an operation device and a supporting frame; the operation device comprises a plurality of operation frames, a containing space is defined by the operation frames, the contour shape of the containing space is configured to be matched with the shape of the bogie, each operation frame comprises an operation platform, and the height difference exists between the operation platform and the bottom end of the containing space; the bottom end of the supporting frame is located in the containing space, and the top end of the supporting frame extends out of the containing space. According to the bogie assembling tool, the bogie assembling efficiency is remarkably improved, and the safety in the bogie assembling process is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle tooling, in particular to a bogie assembly tool and a bogie assembly method. BACKGROUND

[0002] In the manufacturing and assembly process of straddle-type monorail vehicles, the bogie is usually assembled by using a support frame. Due to the complex structure, large size and high overall height of the bogie, the operator often needs to use a ladder when installing the upper parts of the bogie (such as motors, braking devices, etc.). However, due to the compact structure of the bogie and the dense distribution of the parts, the operator needs to move the ladder several times to adjust the working position, which not only causes frequent interruptions in the assembly process, seriously affecting the overall assembly rhythm and reducing production efficiency, but also poses a safety risk. SUMMARY

[0003] To solve the above problems, the present application provides a bogie assembly tool and a bogie assembly method.

[0004] In a first aspect, the present application provides a bogie assembly tool, comprising a working device and a support frame; the working device comprises a plurality of working frames, and the plurality of working frames enclose a containing space, the contour shape of the containing space is configured to fit the shape of the bogie, the working frame comprises a working platform, and the working platform has a height difference with the bottom end of the containing space; the bottom end of the support frame is located in the containing space, and the top end of the support frame extends out of the containing space.

[0005] Optionally, one end of the working frame towards the containing space is provided with a vertical through avoiding gap, and one end of the avoiding gap extends to the working platform; the avoiding gaps of the plurality of working frames constitute the containing space.

[0006] Optionally, the bogie assembly tool further comprises a first connecting structure and a second connecting structure, one of the two adjacent working frames is provided with the first connecting structure, and the other of the two adjacent working frames is provided with the second connecting structure, and the first connecting structure and the second connecting structure are detachably connected to connect or separate the two adjacent working frames.

[0007] Optionally, the first connecting structure is a fixed hook part of a quick buckle, the second connecting structure is a movable buckle part of the quick buckle, and the two adjacent working frames are connected or separated by the quick buckle.

[0008] Optionally, the working frame further comprises a first anti-skid structure, the working platform is provided with the first anti-skid structure, and the first anti-skid structure comprises an anti-skid coating and / or an anti-skid protrusion.

[0009] Optionally, the work frame further comprises a first frame body and a traveling device; the first frame body is connected with the work platform; the traveling device is arranged at the bottom of the first frame body and is used to drive the first frame body to travel.

[0010] Optionally, the work frame further comprises a ground supporting device, the ground supporting device comprises a fixing seat, a first supporting leg and a movable rod, the fixing seat is connected with the first frame body and is provided with a threaded hole penetrating in the vertical direction, the movable rod is provided with an external thread structure and is threadedly connected with the fixing seat through the external thread structure and the threaded hole; the first supporting leg is arranged at the bottom of the movable rod.

[0011] Optionally, the support frame comprises a second frame body, a first supporting seat and a second supporting seat, the first supporting seat and the second supporting seat are arranged at the top of the second frame body in the length direction of the second frame body and are used to support the opposite ends of the components of the bogie.

[0012] Optionally, the support frame further comprises a plurality of second supporting legs, the plurality of second supporting legs are arranged at the bottom of the second frame body in the length direction of the second frame body. And / or, the support frame further comprises a second anti-skid structure, the first supporting seat and the second supporting seat are respectively provided with the second anti-skid structure on the supporting surface, the second anti-skid structure comprises at least one of an anti-skid pad, an anti-skid coating and an anti-skid protrusion.

[0013] In the second aspect, the application provides a bogie assembling method, which adopts the bogie assembling tool as described above, and the bogie assembling method comprises the following steps: Displacing the support frame to a specified position and then supporting the frame of the bogie on the support frame; Assembling part of the devices of the bogie on the frame on the ground; Displacing a plurality of work frames to a preset position to form an accommodation space, and making the bottom end of the support frame located in the accommodation space and the top end of the support frame extend out of the accommodation space; Assembling the remaining devices of the bogie on the frame on the work platforms of the plurality of work frames and / or the support frame.

[0014] Compared with the related art, the application has the following beneficial effects: The bogie assembling tool of the present application encloses a containing space suitable for the shape of the bogie by setting multiple workbenches, and makes the work platform of the workbench and the bottom end of the containing space form a height difference, while the bottom end of the support frame is placed in the containing space and the top end is extended out of the containing space, so that the bogie can be stably placed in the containing space by means of the support frame and the upper parts of the components are exposed in the range accessible by the work platform, and the operator standing on the work platform can perform installation work on the motor, brake device and other components on the upper part of the bogie, without the need to use a ladder and frequently move the work position, effectively avoiding the frequent interruption of the assembly process, breaking through the constraints of the original assembly rhythm, and significantly improving the assembly efficiency of the bogie. At the same time, it also reduces the safety risks that may exist when the operator works with a ladder, greatly improving the safety of the bogie assembly process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure schematic view of the bogie assembling tool of the embodiment of the present application is shown in the figure. Figure 2 The structure schematic view of the work device of the embodiment of the present application is shown in the figure. Figure 3 The structure schematic view of the work device of the embodiment of the present application is shown in the figure. Figure 2 The enlarged view of the part A in the figure. Figure 4 The structure schematic view of the work device of the embodiment of the present application is shown in the figure. Figure 5 The structure schematic view of the supporting device of the embodiment of the present application is shown in the figure. Figure 6 The structure schematic view of the fixed seat of the embodiment of the present application is shown in the figure. Figure 7 The linkage schematic view of the movable rod and the supporting leg of the embodiment of the present application is shown in the figure. Figure 8 The structure schematic view of the supporting frame of the embodiment of the present application is shown in the figure. Figure 9 The flowchart of the bogie assembling method of the embodiment of the present application is shown in the figure.

[0016] Explanation of reference signs: 100, support frame; 101, second frame body; 102, first support seat; 103, second support seat; 104, second supporting leg; 105, second anti-skid structure; 200, working device; 201, working frame; 2011, working platform; 2012, avoiding gap; 2013, first anti-skid structure; 2014, first frame body; 2015, walking device; 2016, supporting device; 20161, fixing seat; 20162, movable rod; 20163, first supporting leg; 20164, threaded hole; 20165, external thread structure; 2017, fence; 300, containing space; 301, first containing unit; 302, second containing unit; 400, first connecting structure; 500, second connecting structure. DETAILED DESCRIPTION

[0017] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to make the present application more thorough and complete. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes, and are not intended to limit the scope of protection of the present application.

[0018] The term "comprising" and its variants as used herein are open-ended, that is "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units or their mutual dependency.

[0019] In the description of the present application, it should be understood that the terms "height", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", etc. indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements 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.

[0020] The bogie assembling tool of the embodiment of the application comprises a working device 200 and a support frame 100; the working device 200 comprises a plurality of working frames 201, the plurality of working frames 201 enclose a containing space 300, the contour shape of the containing space 300 is configured to adapt to the shape of the bogie, the working frame 201 comprises a working platform 2011, and the working platform 2011 has a height difference with the bottom end of the containing space 300; the bottom end of the support frame 100 is located in the containing space 300, and the top end of the support frame 100 extends out of the containing space 300.

[0021] It needs to be understood that the contour shape of the containing space 300 is configured to adapt to the shape of the bogie means that the contour of the containing space 300 is designed according to the specific shape of the bogie (such as the length, width, position of key protruding / recessed parts, overall contour curve or broken line feature of the bogie, etc.). For example, if there is a structure protruding outward on one side of the bogie, the corresponding position of the containing space 300 will reserve a recessed area matching the protrusion; if the bogie as a whole has an irregular frame shape, the containing space 300 will also have a frame-enclosing shape corresponding thereto, so as to avoid that the space is too large to cause difficulty in installation of the bogie, or the space is too small to accommodate the bogie.

[0022] Specifically, the number of the working frames 201 can be two, three or four, etc., which is not specifically limited here and is determined according to actual needs. For example, Figure 1 As shown in the figure, the working frame 201 has two, and the two working frames 201 are similar to a C-shaped type, when the two working frames 201 are assembled with each other, the containing space 300 is enclosed between the two working frames 201, and the contour shape of the containing space 300 adapts to the shape of the bogie, as shown in the figure, Figure 2 As shown in the figure, the containing space 300 comprises three parts, a first containing unit 301 is located at the middle position, second containing units 302 are respectively arranged on the opposite sides of the first containing unit 301 along the penetrating direction, and the two second containing units 302 are symmetrically arranged with respect to the central axis of the first containing unit 301; in the structure of a single working frame 201, the working platform 2011 is horizontally arranged and has a height difference with the bottom end of the containing space 300; the bottom end of the support frame 100 is located in the containing space 300, and the top end of the support frame 100 extends out of the containing space 300, when the support frame 100 supports the frame of the bogie, the lower end of the frame is located in the containing space 300, and the upper end of the frame is located out of the containing space 300.

[0023] In this embodiment, the bogie assembly tool forms a containing space 300 suitable for the shape of the bogie by arranging a plurality of work racks 201, and makes the work platform 2011 of the work rack 201 form a height difference with the bottom end of the containing space 300. Meanwhile, the support frame 100 is placed in the containing space 300 with the top end extending out of the containing space 300, so that the bogie can be stably placed in the containing space 300 by means of the support frame 100, and the upper parts of the components are exposed in the range accessible by the work platform 2011. The operator standing on the work platform 2011 can perform installation work on the motor, brake device and other components of the upper part of the bogie without the need to use a ladder and frequently move the work position, effectively avoiding frequent interruptions in the assembly process, breaking through the constraints of the original assembly rhythm, and significantly improving the assembly efficiency of the bogie. At the same time, it also reduces the safety risks that may exist when the operator works using a ladder, and greatly improves the safety of the bogie assembly process.

[0024] Optionally, one end of the work rack 201 facing the containing space 300 is provided with a vertical avoiding gap 2012, and the opening of one end of the avoiding gap 2012 extends to the work platform 2011. The avoiding gaps of the plurality of work racks 201 constitute the containing space 300.

[0025] Specifically, the shape of the avoiding gap 2012 is designed according to the shape of the bogie. As shown in Figure 2 One end of the work rack 201 facing the containing space 300 is provided with an avoiding gap 2012, which penetrates the work rack 201 vertically, and the opening of one end of the avoiding gap 2012 extends to the work platform 2011. When the plurality of work racks 201 are assembled with each other, the avoiding gaps 2012 of the plurality of work racks 201 constitute the containing space 300.

[0026] In this optional embodiment, the opening design of the avoiding gap 2012 directly communicating with the work platform 2011 can provide sufficient installation space for the bogie, shorten the distance from part of the position of the work platform 2011 to the center position of the upper end of the frame of the bogie, thereby forming more sufficient standing space for the operator on the work platform 2011, and finally facilitate the installation of the walking wheels, motor and brake device and other components of the bogie.

[0027] Optionally, the bogie assembly tool further comprises a first connecting structure 400 and a second connecting structure 500. One of the two adjacent work racks 201 is provided with the first connecting structure 400, and the other of the two adjacent work racks 201 is provided with the second connecting structure 500. The first connecting structure 400 and the second connecting structure 500 are detachably connected to connect or separate the two adjacent work racks 201.

[0028] Specifically, as shown in Figure 2 ,3 As shown, one first connecting structure 400 and one second connecting structure 500 form a group, and the adjacent two work racks 201 are detachably connected through multiple groups of first connecting structures 400 and second connecting structures 500, and the multiple groups of first connecting structures 400 and second connecting structures 500 are vertically spaced.

[0029] In this optional embodiment, by setting the first connecting structure 400 and the second connecting structure 500 and adopting the design of detachable connection of the two, the adjacent two work racks 201 can be flexibly connected or separated. During bogie assembly work, the work racks 201 can be quickly spliced and fixed through the first connecting structure 400 and the second connecting structure 500, ensuring the structure stability of the enclosed accommodation space 300, and providing reliable protection for the stable placement of the bogie and the safe work of the operator. When the bogie needs to be put in or taken out, the corresponding connecting structure can be detached to separate part of the work racks 201, widen the operation channel, avoid the hindrance of the work racks 201 to the transfer of the bogie, and improve the transfer convenience.

[0030] Optionally, the first connecting structure 400 is a fixed hook part of a quick buckle, and the second connecting structure 500 is a movable buckle part of a quick buckle, and the adjacent two work racks 201 are connected or separated through the quick buckle.

[0031] In this optional embodiment, the first connecting structure 400 and the second connecting structure 500 are designed in the form of a quick buckle, so that the quick connection or separation of the adjacent two work racks 201 can be realized through the quick buckle. This design significantly improves the operation efficiency of splicing and splitting of the adjacent two work racks 201 on the basis of ensuring the stability of the connection of the adjacent two work racks 201.

[0032] Optionally, the work rack 201 further comprises a first anti-skid structure 2013, and the work platform 2011 is provided with the first anti-skid structure 2013. The first anti-skid structure 2013 comprises an anti-skid coating and / or an anti-skid protrusion.

[0033] Specifically, the first anti-skid structure 2013 includes but is not limited to an anti-skid coating and an anti-skid protrusion, which is not limited here and is determined according to actual needs. For example, Figure 4 As shown, the upper end surface of the work platform 2011 is uniformly arranged with multiple anti-skid protrusions.

[0034] In this optional embodiment, the first anti-skid structure 2013 comprising an anti-skid coating and / or an anti-skid protrusion is arranged on the work platform 2011, which can effectively increase the friction between the feet of the operator and the upper end surface of the work platform 2011, significantly reduce the risk of slipping of the operator when walking or standing on the work platform 2011 due to slippery platform or body weight deviation, and further improve the work safety during the bogie assembly process.

[0035] Optionally, the work frame 201 further comprises a first frame body 2014 and a walking device 2015; the work platform 2011 is connected to the first frame body 2014; the walking device 2015 is arranged at the bottom of the first frame body 2014 and is used to drive the first frame body 2014 to walk.

[0036] Specifically, the number of the walking device 2015 is not specifically limited and is determined according to actual needs. For example, Figure 4 As shown in the figure, the upper part of the first frame body 2014 is horizontally installed with the work platform 2011; the bottom of the work frame 201 is uniformly provided with a plurality of walking devices 2015, and the walking device 2015 is a universal wheel, which is used to drive the work frame 201 to move. In this optional embodiment, the work frame 201 is designed by arranging the walking device 2015 at the bottom of the first frame body 2014 and connecting the work platform 2011 to the first frame body 2014, which can easily drive the first frame body 2014 and the work platform 2011 to move with the help of the walking device 2015, significantly improving the convenience of the work frame 201 transfer. Before the bogie assembly work, the walking device 2015 can be used to quickly transfer each work frame 201 to the designated assembly area, accurately adjust the position to enclose the accommodation space 300 suitable for the bogie assembly, without the help of additional handling equipment, reducing the labor and time cost of the work frame 201 arrangement; after the work frame 201 is positioned and fixed, the bogie assembly work can be stably carried out; at the same time, after the assembly work is completed, the work frame 201 can also be conveniently transferred to the storage area or other work stations by the walking device 2015, reducing the occupation of the work frame 201 to the site space, optimizing the layout flexibility of the production site, and further improving the efficiency and convenience of the overall production work.

[0037] Further, the work frame 201 further comprises a fence 2017 connected to the first frame body 2014 and / or the work platform 2011. In this way, when the operator works on the work platform 2011, the fence 2017 can reduce the risk of the operator falling from the work platform 2011 to the ground, thereby further improving the work safety during the bogie assembly process.

[0038] Optionally, the work frame 201 further comprises a supporting device 2016, the supporting device 2016 comprises a fixed seat 20161, a first supporting leg 20163 and a movable rod 20162, the fixed seat 20161 is connected to the first frame body 2014 and is provided with a threaded hole 20164 penetrating in the vertical direction, the movable rod 20162 is provided with an external thread structure 20165 and is threadedly connected to the fixed seat 20161 through the external thread structure 20165 and the threaded hole 20164; the first supporting leg 20163 is arranged at the bottom of the movable rod 20162.

[0039] Specifically, as shown in Figure 5 , 6 , 7, in the structure of the ground supporting device 2016, the fixing seat 20161 is a cylindrical structure and is welded and fixed with the first frame body 2014, and the fixing seat 20161 is provided with a threaded hole 20164 penetrating in the vertical direction, and the shank of the movable rod 20162 is provided with an external thread structure 20165 and is threadedly connected with the fixing seat 20161 through the external thread structure 20165 and the threaded hole 20164; the first supporting leg 20163 is disc-shaped and is arranged at the bottom end of the movable rod 20162.

[0040] In this optional embodiment, when the ground supporting device 2016 is raised to a position away from the ground, the walking device 2015 can drive the whole operation frame 201 to move flexibly, so as to facilitate the transfer; when the ground supporting device 2016 is lowered to a position contacting the ground, the walking device 2015 cannot easily drive the operation frame 201 to move, and the ground supporting device 2016 can enhance the support stability of the whole operation frame 201, avoid shaking during operation, and further ensure the operation safety.

[0041] Meanwhile, the movable rod 20162 is threadedly connected with the fixing seat 20161 through the external thread structure 20165 and the threaded hole 20164, and this design enables the operator to easily adjust the vertical height of the movable rod 20162 in the fixing seat 20161 by rotating the movable rod 20162, and further flexibly adjust the height of the first supporting leg 20163, and the threaded connection has good self-locking performance, so that the current height can be stably maintained after adjustment, preventing the height from deviating due to external force during support.

[0042] Optionally, the support frame 100 comprises a second frame body 101, a first support seat 102 and a second support seat 103, and the first support seat 102 and the second support seat 103 are arranged at the top of the second frame body 101 in the length direction of the second frame body 101 and are used for supporting the opposite ends of the components of the bogie.

[0043] Specifically, as shown in Figure 8 , the second frame body 101 is rectangular, the first support seat 102 and the second support seat 103 are arranged at the top of the second frame body 101 in the length direction of the second frame body 101, the connection mode of the second frame body 101 with the first support seat 102 and the second support seat 103 includes but is not limited to welding or bolt connection, and the first support seat 102 and the second support seat 103 are respectively used for supporting the opposite ends of the components of the bogie.

[0044] In the optional embodiment, the two-point interval support mode can form reliable support fulcrums according to the structural features of the bogie member, effectively disperse the weight of the bogie, avoid the problem of excessive local stress caused by the concentration of support points, prevent the bogie from deforming or displacing during the assembly process, and ensure the precision of the installation of parts; on the other hand, the accurate support positioning can keep the upper parts of the bogie (such as motors, braking devices, etc.) at a reasonable height and posture that can be reached by the work platform 2011, providing a stable work reference for the operator, facilitating the smooth development of installation operations, and further ensuring the assembly quality and efficiency.

[0045] Further, the support frame 100 further comprises a plurality of second supporting legs 104, which are arranged at the bottom of the second frame body 101 along the length direction of the second frame body 101, thereby supporting the second frame body 101.

[0046] Optionally, the support frame 100 further comprises a second anti-skid structure 105, and the support surfaces of the first support seat 102 and the second support seat 103 are respectively provided with the second anti-skid structure 105. The second anti-skid structure 105 comprises at least one of a non-slip pad, a non-slip coating, and a non-slip protrusion.

[0047] Specifically, as shown in Figure 8 the second anti-skid structure 105 is a non-slip pad, which is connected to the support surfaces of the first support seat 102 and the second support seat 103. The connection modes of the two include but are not limited to adhesion or screw connection.

[0048] In the optional embodiment, when the bogie frame is supported on the support frame 100, the first support seat 102 and the second support seat 103 are in contact with the frame through the second anti-skid structure 105, thereby increasing the friction between the contact surfaces and further reducing the probability of frame shaking.

[0049] The bogie assembly method of the embodiment of the application adopts the bogie assembly tool as described above, as shown in Figure 9 the bogie assembly method comprises the following steps: S100, displacing the support frame 100 to a specified position, and then supporting the frame of the bogie on the support frame 100; In step S100, the support frame 100 can be hoisted to the specified position by AGV trolley transportation or girder hoisting, and after the support frame 100 is displaced to the position, the frame of the bogie is hoisted onto the support frame 100, and the two ends of the frame are supported on the first support seat 102 and the second support seat 103, respectively.

[0050] S200, assembling part of the devices of the bogie on the frame on the ground; In step S200, the operator can assemble the bogie balance wheel and the partial structure of the anti-torsion device on the frame on the ground, because the bogie balance wheel and the partial structure of the anti-torsion device are low in position.

[0051] S300, moving the plurality of work frames 201 to the preset positions to enclose the accommodation space 300, and making the bottom end of the support frame 100 located in the accommodation space 300, and making the top end of the support frame 100 extend out of the accommodation space 300. In step S300, after the control of the plurality of work frames 201 to move to the preset positions, the plurality of work frames 201 enclose the accommodation space 300, and then the adjacent two work frames 201 are locked by the quick buckles. At this time, the bottom end of the support frame 100, the bottom end of the frame and the devices installed on the bottom end of the frame are located in the accommodation space 300, and the top end of the support frame 100 and the top end of the frame extend out of the accommodation space 300.

[0052] S400, assembling the remaining devices of the bogie on the frame on the work platforms 2011 of the plurality of work frames 201 and / or the support frame 100.

[0053] In step S400, after the locking of the plurality of work frames 201 is completed, the operator can stand on the plurality of work platforms 2011 and the support frame 100 to assemble the guide wheels of the bogie, the remaining components of the anti-torsion device, the driving device and the walking wheels on the frame.

[0054] The bogie assembling method of the embodiment has the same beneficial effects as the bogie assembling tool relative to the prior art, and thus will not be described here again.

[0055] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A bogie assembly fixture, characterized in that, The device includes a working device (200) and a support frame (100); the working device (200) includes multiple working frames (201), which enclose a accommodating space (300). The outline shape of the accommodating space (300) is configured to adapt to the shape of the bogie. Each working frame (201) includes a working platform (2011), which has a height difference with the bottom end of the accommodating space (300). The bottom end of the support frame (100) is located inside the accommodating space (300), and the top end of the support frame (100) extends outside the accommodating space (300).

2. The bogie assembly fixture according to claim 1, characterized in that, The work frame (201) has a vertically penetrating clearance (2012) at one end facing the accommodating space (300), and one end of the clearance (2012) extends to the work platform (2011); the clearances (2012) of the multiple work frames (201) constitute the accommodating space (300).

3. The bogie assembly fixture according to claim 1, characterized in that, It also includes a first connecting structure (400) and a second connecting structure (500), one of the two adjacent work racks (201) is provided with the first connecting structure (400), and the other of the two adjacent work racks (201) is provided with the second connecting structure (500). The first connecting structure (400) and the second connecting structure (500) are detachably connected so that the two adjacent work racks (201) can be connected or separated.

4. The bogie assembly fixture according to claim 3, characterized in that, The first connecting structure (400) is a fixed hook part of the quick-hook, and the second connecting structure (500) is a movable hook part of the quick-hook. Two adjacent work racks (201) are connected or separated by the quick-hook.

5. The bogie assembly fixture according to claim 1, characterized in that, The work frame (201) also includes a first anti-slip structure (2013), which is provided on the work platform (2011). The first anti-slip structure (2013) includes an anti-slip coating and / or anti-slip protrusions.

6. The bogie assembly fixture according to claim 1, characterized in that, The work frame (201) also includes a first frame (2014) and a walking device (2015); the work platform (2011) is connected to the first frame (2014); the walking device (2015) is located at the bottom of the first frame (2014) and is used to drive the first frame (2014) to move.

7. The bogie assembly fixture according to claim 6, characterized in that, The work frame (201) also includes a ground support device (2016), which includes a fixed base (20161), a first support leg (20163), and a movable rod (20162). The fixed base (20161) is connected to the first frame (2014) and has a through threaded hole (20164) in the vertical direction. The movable rod (20162) has an external thread structure (20165) and is threadedly connected to the fixed base (20161) through the external thread structure (20165) and the threaded hole (20164). The first support leg (20163) is located at the bottom of the movable rod (20162).

8. The bogie assembly fixture according to claim 1, characterized in that, The support frame (100) includes a second frame (101), a first support base (102), and a second support base (103). The first support base (102) and the second support base (103) are spaced apart on the top of the second frame (101) along the length direction of the second frame (101) and are used to support the opposite ends of the components of the bogie.

9. The bogie assembly fixture according to claim 8, characterized in that, The support frame (100) further includes a plurality of second support legs (104), which are spaced apart at the bottom of the second frame (101) along the length direction of the second frame (101); And / or, the support frame (100) further includes a second anti-slip structure (105), wherein the support surfaces of the first support base (102) and the second support base (103) are respectively provided with the second anti-slip structure (105), and the second anti-slip structure (105) includes at least one of anti-slip pad, anti-slip coating and anti-slip protrusion.

10. A bogie assembly method, employing the bogie assembly fixture as described in any one of claims 1 to 9, characterized in that, The bogie assembly method includes the following steps: The support frame (100) is moved to a designated position, and then the bogie frame is supported on the support frame (100); On the ground, some components of the bogie are assembled onto the frame; Multiple work racks (201) are moved to a preset position to enclose and form a receiving space (300), and the bottom end of the support frame (100) is located inside the receiving space (300), and the top end of the support frame (100) extends out of the receiving space (300). The remaining components of the bogie are assembled onto the frame on the work platform (2011) of the plurality of work frames (201) and / or the support frame (100).

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