Caterpillar frame accessory welding positioning tool and caterpillar frame accessory welding positioning structure

Abstract

The application belongs to the technical field of engineering machinery and provides a track frame accessory welding positioning tool and a track frame accessory welding positioning structure. The track frame accessory welding positioning tool is used for being installed on a speed reducer mounting frame. An outer wall of the speed reducer mounting frame is provided with a track frame accessory mounting position. An installation cavity and an installation flange are arranged in the speed reducer mounting frame. The track frame accessory welding positioning tool comprises a positioning frame assembly and a positioning seat. One end of the positioning frame assembly is used for being installed on the installation flange. The other end is an extension end extending out of the installation cavity. The extension end is provided with an installation support. The positioning seat is installed on the installation support and comprises a positioning end provided with a positioning hole. The positioning end can extend to the outer peripheral wall of the installation cavity in the axial direction. The positioning hole is used for being aligned with the track frame accessory mounting position. Through the positioning hole aligned with the track frame accessory mounting position, the quick and accurate positioning of the track frame accessory can be realized. In the positioning process, manual adjustment is not required. The influence of human factors is effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery technology, specifically relating to a welding and positioning fixture for track frame accessories and a welding and positioning structure for track frame accessories. Background Technology

[0002] Tracked travel mechanisms are increasingly widely used in construction machinery such as excavators and cranes due to their good traction and ability to adapt to uneven road surfaces. Typically, a tracked travel mechanism mainly consists of a track frame, tracks wound around the outer perimeter of the track frame, and a speed reducer that drives the tracks. Specifically, such as... Figure 1 As shown, the track frame mainly includes a frame body 01 and a reducer mounting frame 02. The reducer mounting frame 02 has a mounting cavity 03, and a mounting flange for mounting the reducer is provided in the mounting cavity 03. When the reducer is installed on the mounting flange, it is driven by a series of transmission components, thereby realizing the movement of the track.

[0003] During the installation of the speed reducer, a crucial step is installing the protective cover. Specifically, this involves welding multiple track frame accessories to the outer perimeter of the speed reducer mounting bracket 02, and then aligning the protective cover with the speed reducer and connecting it to the track frame accessories. However, existing methods for welding track frame accessories often rely on manual marking and placement for positioning. This method is not only inefficient but also prone to human error, leading to rework. Summary of the Invention

[0004] To address the aforementioned defects or deficiencies, this invention provides a welding positioning fixture and structure for track frame accessories, aiming to solve the technical problems of low efficiency and easy error in existing track frame accessory positioning methods.

[0005] To achieve the above objectives, the present invention provides a track frame accessory welding and positioning fixture, mainly used for installation on a reducer mounting bracket. The outer wall of the reducer mounting bracket is provided with a track frame accessory mounting position, and the interior is provided with a mounting cavity extending in the axial direction. A mounting flange is provided inside the mounting cavity. The track frame accessory welding and positioning fixture includes a positioning frame assembly and a positioning seat. One end of the positioning frame assembly is used to be installed on the mounting flange, and the other end is an extension end extending out of the mounting cavity. A mounting support is provided on the extension end. The positioning seat is installed on the mounting support and includes a positioning end with a positioning hole. The positioning end can extend in the axial direction to the outer peripheral wall of the mounting cavity. The positioning hole is used to align with the track frame accessory mounting position.

[0006] In an embodiment of the present invention, the mounting bracket is provided with a guide groove extending in the axial direction, and the positioning seat includes an extension portion and a guide rail portion arranged perpendicularly to the extension portion. The guide rail portion is used to engage the guide groove in the guide rail extension direction, and the guide rail extension direction of the guide rail portion is the same as the extension direction of the extension portion.

[0007] In an embodiment of the present invention, a fixing hole is provided on the bottom wall of the guide groove, and the positioning seat also includes a pin for inserting into the fixing hole, the pin being locked in the fixing hole by a fixing component.

[0008] In an embodiment of the present invention, the fixing hole is a through hole that penetrates the mounting bracket, the pin portion is disposed through the fixing hole and its end extends out of the fixing hole, the end of the pin portion is provided with a pin hole, and the fixing component includes a locking pin for inserting into the pin hole.

[0009] In an embodiment of the present invention, the fixing component further includes a washer and a tension spring. The washer is sleeved on the end of the pin portion and placed inside the locking pin. The tension spring is sleeved on the pin portion and its two ends abut against the washer and the bottom surface of the mounting bracket, respectively.

[0010] In an embodiment of the present invention, the positioning frame assembly includes a connecting frame and a first positioning plate and a second positioning plate coaxially disposed at both ends of the connecting frame along the axial direction. The first positioning plate is coaxially connected to the mounting flange, and the second positioning plate extends out of the mounting cavity.

[0011] To achieve the above objectives, the present invention also provides a track frame accessory welding positioning structure, including a positioning frame assembly and a positioning seat, one axial end being an installation end and the other axial end being an extension end, the extension end being provided with a mounting support, the positioning seat being mounted on the mounting support and including a positioning end extending axially toward the installation end, the positioning end being provided with a positioning hole.

[0012] In an embodiment of the present invention, the positioning frame assembly includes a connecting frame and a first positioning plate and a second positioning plate coaxially disposed at both ends of the connecting frame along the axial direction, and a mounting support is disposed on the second positioning plate.

[0013] In an embodiment of the present invention, the reducer mounting bracket includes a cylindrical portion, a first mounting position is provided on the outer peripheral wall of the cylindrical portion, the mounting support includes a first mounting support, and the positioning seat includes a first positioning seat disposed on the first mounting support and whose positioning end extends axially to the outer peripheral side of the cylindrical portion. The positioning end of the first mounting support is provided with a first positioning hole extending radially toward the central axis of the mounting flange, and the first positioning hole is aligned with the first mounting position.

[0014] In an embodiment of the present invention, the reducer mounting bracket further includes a straight plate portion extending along a first direction. The outer wall of the straight plate portion is provided with a second mounting position. The mounting support includes a second mounting support disposed on the protruding end and extending one end along the first direction. The positioning seat includes a second positioning seat disposed on the second mounting support and extending the positioning end along the axial direction to the outer side of the outer wall of the straight plate portion. The positioning end of the second positioning seat is provided with a second positioning hole perpendicular to the outer wall of the straight plate portion. The second positioning hole is aligned with the second mounting position.

[0015] Through the above technical solution, the track frame accessory welding and positioning fixture provided in the embodiments of the present invention has the following beneficial effects:

[0016] When the positioning frame assembly is installed on the mounting flange, one end of the positioning frame assembly extends out of the mounting cavity. A mounting support is set on the extended end, and then a positioning seat is set on the mounting support, with a positioning hole set on the mounting support. Since the positioning hole on the positioning seat is located on the outer side of the outer peripheral wall of the reducer mounting bracket and aligned with the track frame accessory mounting position, when welding the track frame accessory, simply insert the track frame accessory into the positioning hole to automatically align the track frame accessory with the track frame accessory mounting position. At the same time, due to the guiding effect of the positioning hole, the orientation of the track frame accessory after being placed in the positioning hole can be automatically corrected, thus eliminating the need for welding personnel to adjust the track frame accessory and improving production efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the track frame structure as described in the background art.

[0020] Figure 2 This is a structural schematic diagram of the disassembled welding positioning fixture for track frame accessories according to an embodiment of the present invention;

[0021] Figure 3 According to the embodiments of the present invention Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 According to the embodiments of the present invention Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is an exploded structural diagram of the positioning seat, mounting support, and fixing components according to an embodiment of the present invention;

[0024] Figure 6 This is a structural schematic diagram of the speed reducer mounting bracket according to an embodiment of the present invention from one perspective.

[0025] Figure 7 This is a schematic diagram showing the position of the positioning seat during rough welding and fine welding of the track frame accessory according to an embodiment of the present invention.

[0026] Background Art, Illustrations and Labeling

[0027] 01 Frame body 02 Gearbox mounting bracket

[0028] 03 Installation cavity

[0029] Explanation of reference numerals in the attached figures

[0030] 11 Gearbox mounting bracket 111 Cylindrical section

[0031] 112 Straight Plate Section 12 Mounting Cavity

[0032] 13 Mounting flange 131 Center axis

[0033] 2. Positioning frame assembly 21. Extended end

[0034] 22 Connecting frame 23 First positioning plate

[0035] 24 Second positioning plate 3 Mounting support

[0036] 31 First mounting support 32 Second mounting support

[0037] 34 Guide groove 35 Fixing hole

[0038] 4. Positioning seat 41. First positioning seat

[0039] 42 Second positioning seat 43 Third positioning seat

[0040] 44 Extension section 45 Guide rail section

[0041] 46 Pin section 5 Positioning holes

[0042] 51 First positioning hole 52 Second positioning hole

[0043] 53 Third positioning hole 6 Fixing component

[0044] 61 Locking pin 62 Washer

[0045] 63 Tension spring 71 First mounting position

[0046] 72 Second mounting position 73 Third mounting position Detailed Implementation

[0047] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0048] The welding and positioning fixture for track frame accessories of the present invention will now be described with reference to the accompanying drawings.

[0049] like Figure 2 and Figure 5 As shown, the present invention provides a track frame accessory welding and positioning fixture, mainly used for installation on a reducer mounting bracket 11. The reducer mounting bracket 11 has a track frame accessory mounting position on its outer wall and an axially extending mounting cavity 12 inside. A mounting flange 13 is provided inside the mounting cavity 12. The track frame accessory welding and positioning fixture includes:

[0050] Positioning bracket assembly 2 has one end for mounting on mounting flange 13, and the other end is an extension end 21 extending out of mounting cavity 12, with a mounting support 3 provided on the extension end 21; and

[0051] The positioning seat 4 is installed on the mounting support 3 and includes a positioning end with a positioning hole 5. The positioning end can extend axially to the outer peripheral wall of the mounting cavity 12. The positioning hole 5 is used to align with the track frame accessory mounting position.

[0052] In use, first, correctly install the positioning bracket assembly 2 onto the mounting flange 13. At this time, the protruding end 21 of the positioning bracket assembly 2 will protrude from the end face of the mounting cavity 12 and be placed outside the mounting cavity 12. Since the protruding end 21 is provided with a mounting support 3, after all the positioning seats 4 are installed, the positioning hole 5 will be aligned with the track frame accessory mounting position. Through the aligned positioning hole 5, the positioning of the track frame accessory can be quickly achieved. Specifically, when welding the track frame accessory, since the positioning hole 5 is aligned with the track frame accessory mounting position, it is only necessary to weld the track frame... The attachment is inserted into the positioning hole 5 and pressed against the outer wall of the reducer mounting bracket 11, which aligns the track frame attachment with the track frame attachment mounting position. Due to the guiding effect of the positioning hole 5, the orientation of the track frame attachment can be limited, thereby achieving the positioning of the track frame attachment orientation. In summary, the track frame attachment welding positioning fixture of the present invention, by setting the positioning hole 5 aligned with the track frame attachment mounting position, can achieve rapid automatic positioning of the track frame attachment, and no manual placement is required during the positioning process, which can effectively reduce the influence of human factors.

[0053] It should be noted that the alignment of the positioning hole 5 with the track frame accessory mounting position mainly includes the alignment of the axial position and the determination of the orientation. The track frame accessory mounting position refers to the theoretical installation position of the track frame accessory, which can be determined according to the parameters known on the design drawings. Both the installation of the reducer and the positioning frame assembly 2 are based on the mounting flange 13 as the installation reference. Therefore, the design of the track frame accessory welding positioning fixture is also based on the mounting flange 13. Since the central axis of the mounting flange 13 extends axially, and the extension direction of the mounting cavity 12 is also axial, setting the positioning seat 4 along the axial direction facilitates the design and processing of the positioning hole 5. The purpose of setting the protruding end 21 to extend out of the mounting cavity 12 is that if the protruding end 21 is placed inside the mounting cavity 12, the narrow space inside the mounting cavity 12 will increase the installation difficulty of the mounting support 3 and the positioning seat 4. Furthermore, if the positioning seat 4 is placed inside the mounting cavity 12, the positioning end needs to be bent multiple times to extend to the outer periphery of the mounting cavity 12, increasing the production cost of the positioning seat 4.

[0054] like Figure 2 and Figure 3 As shown, in an embodiment of the present invention, the reducer mounting bracket includes a cylindrical portion 111, and a first mounting position 71 is provided on the outer peripheral wall of the cylindrical portion 111. The mounting support 3 includes a first mounting support 31, and the positioning seat 4 includes a first positioning seat 41 disposed on the first mounting support 31 and whose positioning end extends axially to the outer peripheral side of the cylindrical portion 111. The positioning end of the first mounting support 31 is provided with a first positioning hole 51 extending radially toward the central axis 131 of the mounting flange 13. The first positioning hole 51 is aligned with the first mounting position 71. The mounting flange 13 is installed in the mounting cavity 12 of the cylindrical part 111 and is coaxially arranged with the cylindrical part 111. The track frame accessory mounting position includes a first mounting position 71 provided on the cylindrical part 111. In the design drawings, the installation requirements for the track frame accessory installed on the first mounting position 71 are to ensure that its extension direction is oriented toward the central axis 131 of the mounting flange 13. Therefore, the first positioning seat 41 extends in the axial direction and is provided with a radially extending first positioning hole 51, so as to ensure the accuracy of its position and orientation when positioning and welding the track frame accessory.

[0055] like Figure 2 , Figure 3 as well as Figure 6As shown, in an embodiment of the present invention, the axial distance from the first positioning hole 51 to the mounting flange 13 is equal to the axial distance from the first mounting position 71 to the mounting flange 13, and the first circumferential orientation of the first positioning hole 51 relative to the central axis 131 coincides with the second circumferential orientation of the first mounting position 71 relative to the central axis 131 in the axial direction. The parameter markings for the first mounting position 71 on the design drawings mainly include the axial distance parameter from the first mounting position 71 to the mounting flange 13 and the circumferential orientation parameter of the first mounting position 71 relative to the central axis 131 of the mounting flange 13. By extending the first positioning seat 41 axially and ensuring that the axial distance from the first positioning hole 51 to the mounting flange 13 is equal to the axial distance from the first mounting position 71 to the mounting flange 13, and that the first circumferential orientation of the first positioning hole 51 relative to the central axis 131 coincides with the second circumferential orientation of the first mounting position 71 relative to the central axis 131 in the axial direction, alignment of the first positioning hole 51 and the first mounting position 71 can be guaranteed.

[0056] like Figure 2 , Figure 4 and Figure 6 As shown, in an embodiment of the present invention, the reducer mounting bracket further includes a straight plate portion 112 extending along a first direction. The outer wall of the straight plate portion 112 is provided with a second mounting position 72. The mounting support 3 includes a second mounting support 32 disposed on the protruding end 21 and extending at one end along the first direction. The positioning seat 4 includes a second positioning seat 42 disposed on the second mounting support 32 and extending axially to the outer side of the outer wall of the straight plate portion 112. The positioning end of the second positioning seat 42 is provided with a second positioning hole 52 perpendicular to the outer wall of the straight plate portion 112, and the second positioning hole 52 is aligned with the second mounting position 72. Specifically, the track frame accessory mounting position further includes a second mounting position 72 disposed on the outer wall of the straight plate portion 112. In the design drawings, the requirement for the track frame accessory to be installed on the second mounting position 72 is that it is aligned with the second mounting position 72 and its extension direction is perpendicular to the outer wall of the straight plate portion 112. Therefore, by aligning the second positioning hole 52 with the second mounting position 72 and making it perpendicular to the outer wall of the straight plate portion 112, accurate installation of the track frame accessory is ensured. It should be noted that the installation requirements of the above track frame accessories are determined by the position and orientation of the mounting holes on the protective cover. When the position and orientation of the mounting holes on the protective cover change, the orientation and position of the positioning hole 5 also need to be adjusted.

[0057] like Figure 2 , Figure 4 and Figure 6As shown, in an embodiment of the present invention, the distance from the second positioning hole 52 to the central axis 131 in the first direction is equal to the distance from the second mounting position 72 to the central axis 131 in the first direction, and the axial distance from the second positioning hole 52 to the mounting flange 13 is equal to the axial distance from the second mounting position 72 to the mounting flange 13. On the design drawings, the parameters marked on the second mounting position 72 mainly include the distance from the second mounting position 72 to the central axis 131 in the first direction and the axial distance from the second mounting position 72 to the mounting flange 13. Therefore, in this invention, by setting the distance from the second positioning hole 52 to the central axis 131 in the first direction to be equal to the distance from the second mounting position 72 to the central axis 131 in the first direction, and setting the axial distance from the second positioning hole 52 to the mounting flange 13 to be equal to the axial distance from the second mounting position 72 to the mounting flange 13, it is possible to ensure that the second positioning hole 52 is aligned with the second mounting position 72. It should be noted that the distance parameters from the second mounting position 72 to the central axis 131 in the first direction and the axial distance parameters from the second mounting position 72 to the mounting flange 13 are known parameters, and the positioning frame assembly 2 and the positioning seat 4 are designed based on these known parameters.

[0058] like Figure 2 , Figure 4 and Figure 6 As shown, in an embodiment of the present invention, a third mounting position 73 is also provided on the outer wall of the straight plate portion 112. The mounting support 3 also includes a third positioning seat 43 disposed on the second mounting support 32. The third positioning seat 43 and the second positioning seat 42 are arranged parallel to each other in a first direction. The positioning end of the third positioning seat 43 extends to the outer side of the outer wall of the straight plate portion 112 in the axial direction and is provided with a third positioning hole 53. The third positioning hole 53 is located on the outer side of the outer wall surface of the straight plate portion 112 and is perpendicular to the outer wall surface of the straight plate portion 112. The third positioning hole 53 is aligned with the third mounting position 73.

[0059] like Figure 2 , Figure 4 and Figure 6 As shown, specifically, in an embodiment of the present invention, the distance between the second positioning hole 52 and the third positioning hole 53 in the first direction is equal to the distance between the second mounting position 72 and the third mounting position 73 in the first direction, and the axial distances of the second positioning hole 52 and the third positioning hole 53 from the mounting flange 13 are equal. On the design drawings, the parameters marked on the third mounting position 73 include the distance from the third mounting position 73 to the second mounting position 72 in the first direction and the axial distance from the second mounting position 72 to the mounting flange 13. Therefore, the position of the third positioning hole 53 is set using these known parameters, thereby aligning the third positioning hole 53 with the third mounting position 73.

[0060] like Figure 2 and Figure 5As shown, in an embodiment of the present invention, the mounting support 3 is provided with a guide groove 34 extending in the axial direction, and the positioning seat 4 includes an extension 44 and a guide rail 45 arranged perpendicularly to the extension 44. The guide rail 45 is used to engage the guide groove 34 in the guide rail extension direction, and the guide rail extension direction of the guide rail 45 is the same as the extension direction of the extension 44. By setting a guide groove 34 extending along the axial direction and making the guide rail portion 45 and the extension portion 44 on the positioning seat 4 extend in the same direction, it can be ensured that the extension direction of the extension portion 44 is parallel to the axial direction when the guide rail portion 45 is engaged in the guide groove 34. The groove depth direction of the guide groove 34 will be slightly different for different positioning seats 4. For example, the groove depth direction of the guide groove 34 on the first positioning seat 41 extends radially toward the central axis 131 of the mounting flange 13, and the groove depth direction of the guide groove 34 on the second positioning seat 42 and the third positioning seat 43 is perpendicular to the peripheral wall of the straight plate portion 112. This ensures that the orientation of the positioning hole 5 is the same as the orientation after the track frame accessory is installed. That is, by limiting the groove depth direction of the guide groove 34, the orientation of the positioning hole 5 can be limited.

[0061] like Figure 2 and Figure 5 As shown, in an embodiment of the present invention, a fixing hole 35 is also provided on the bottom wall of the guide groove 34, and the positioning seat 4 further includes a pin portion 46 for inserting into the fixing hole 35. The pin portion 46 is locked into the fixing hole 35 by the fixing component 6. The position requirement for the fixing hole 35 is that the axial distance from the fixing hole 35 to the mounting flange 13 is equal to the sum of the axial distance from the mounting position to the mounting flange 13 and the axial distance from the pin portion 46 of the positioning seat 4 to the positioning hole 5. Since the positioning frame assembly 2 is mounted on the mounting flange 13, when designing the positioning frame assembly 2 and the positioning seat 4, it is only necessary to ensure that the axial distance from the fixing hole 35 to the connecting end of the positioning frame assembly 2 is equal to the sum of the axial distance from the track frame accessory mounting position to the mounting flange 13 and the axial distance from the pin portion 46 of the positioning seat 4 to the positioning hole 5. Since the axial distance parameter from the track frame accessory mounting position to the mounting flange 13 is a known parameter, the size of the fixing hole 35 can be determined according to the design dimensions of the positioning seat 4. That is, by defining the position of the fixing hole 35, the axial position of the positioning hole 5 can be defined.

[0062] like Figure 5 As shown, in this embodiment of the invention, the fixing hole 35 is a through hole that passes through the mounting bracket 3. The pin portion 46 is disposed through the fixing hole 35 and its end extends out of the fixing hole 35. The end of the pin portion 46 is provided with a pin hole. The fixing component 6 includes a locking pin 61 for inserting into the pin hole. That is, the pin portion 46 of the positioning seat 4 is detachably connected to the fixing hole 35 by the cooperation of the locking pin 61 and the pin hole. After the track frame accessories are welded, the positioning seat 4 can be easily removed by removing the locking pin 61.

[0063] like Figure 2 , Figure 5 and Figure 7 As shown, in an embodiment of the present invention, the fixing component 6 further includes a washer 62 and a tension spring 63. The washer 62 is sleeved on the end of the pin portion 46 and placed inside the locking pin 61. The tension spring 63 is sleeved on the pin portion 46 and its two ends abut against the washer 62 and the bottom surface of the mounting bracket 3, respectively. By providing the tension spring 63, quick separation of the track frame accessory from the positioning bracket 4 can be achieved without completely removing the positioning bracket 4. Specifically, after the positioning hole 5 on the positioning seat 4 is aligned with the track frame accessory installation position, the track frame accessory is inserted into the positioning hole 5 and abuts against the outer wall of the reducer mounting bracket 11. Then, rough welding is performed on the track frame accessory to complete the initial shaping of the track frame accessory. After the track frame accessory is shaped, the positioning seat 4 is pulled upward to disengage the positioning hole 5 from the track frame accessory. Then, the positioning seat 4 is rotated 180 degrees. At this time, the positioning seat 4 is released. Due to the action of the tension spring 63, the positioning seat 4 is reversed and inserted into the guide groove 34. Due to the reverse rotation of the positioning seat 4, sufficient space is provided for the welding of the track frame accessory. At this time, fine welding of the track frame accessory can be performed.

[0064] like Figure 2 As shown, in an embodiment of the present invention, the positioning frame assembly 2 includes a connecting frame 22 and a first positioning plate 23 and a second positioning plate 24 coaxially disposed at both ends of the connecting frame 22 along the axial direction. The first positioning plate 23 is coaxially connected to the mounting flange 13, and the second positioning plate 24 extends out of the mounting cavity 12. When designing the positioning frame assembly 2 and the positioning seat, introducing the external component of the mounting flange 13 would increase the complexity of the entire drawing. Therefore, to facilitate the determination of the positions of components such as the mounting support 3, guide groove 34, fixing hole 35, and positioning seat 4, the first positioning plate 23 and the second positioning plate 24 are set coaxially, and the first positioning plate 23 is configured to be coaxially connected to the mounting flange 13, thereby making the design and assembly of the entire positioning frame assembly 2 more convenient. There are various ways to coaxially connect the first positioning plate 23 to the mounting flange 13, such as providing alignment holes on the first positioning plate 23 and ensuring that the distance from the alignment hole to the axis of the first positioning plate 23 is equal to the distance from the flange hole of the mounting flange 13 to the central axis 131 of the mounting flange 13.

[0065] To achieve the above objectives, the present invention provides a track frame accessory welding positioning structure, which includes:

[0066] The reducer mounting bracket 11 has a track frame accessory mounting position on its outer wall and a mounting cavity 12 extending in the axial direction inside. The mounting cavity 12 is equipped with a mounting flange 13.

[0067] Positioning bracket assembly 2 is mounted on mounting flange 13 and has one end extending out of mounting cavity 12 as an extension end 21, the extension end 21 being provided with mounting support 3; and

[0068] The positioning seat 4 is installed on the mounting support 3 and includes a positioning end that extends axially to the outer peripheral wall of the mounting cavity 12. The positioning end is provided with a positioning hole 5, which is aligned with the track frame accessory mounting position.

[0069] The welding and positioning structure of the track frame accessories can adopt all the technical solutions in the above embodiments, and the beneficial effects brought about will not be repeated here.

[0070] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A track frame attachment welding positioning tool for installation on a reduction gear mounting frame (11), the reduction gear mounting frame (11) being provided with a track frame attachment mounting position on an outer wall and an installation cavity (12) extending in an axial direction inside, the installation cavity (12) being provided with an installation flange (13) inside, characterized in that, The track frame accessory welding positioning tool comprises: a positioning frame assembly (2) having one end mounted on the mounting flange (13) and the other end being an extended end (21) extending out of the mounting cavity (12), and the extended end (21) being provided with a mounting support (3); and a positioning seat (4) mounted on the mounting support (3) and comprising a positioning end provided with a positioning hole (5), the positioning end being capable of extending to the outer peripheral wall of the mounting cavity (12) along the axial direction, and the positioning hole (5) being used for aligning with the track frame accessory mounting position; wherein the mounting support (3) is provided with a guide groove (34) extending along the axial direction, the positioning seat (4) comprises an extension part (44) and a guide rail part (45) arranged perpendicularly to the extension part (44), the guide rail part (45) being used for clamping the guide groove (34) along the guide rail extension direction, and the guide rail extension direction of the guide rail part (45) being the same as the extension direction of the extension part (44); the bottom wall of the guide groove (34) is further provided with a fixing hole (35), and the positioning seat (4) further comprises a latch part (46) used for inserting the fixing hole (35), and the latch part (46) is locked with the fixing hole (35) through a fixing assembly (6).

2. The track frame attachment weld positioning fixture of claim 1, wherein, The fixing hole (35) is a through hole penetrating through the mounting support (3), the latch part (46) is arranged in the fixing hole (35) and the end thereof extends out of the fixing hole (35), the end of the latch part (46) is provided with a latch hole, and the fixing assembly (6) comprises a locking pin (61) used for inserting the latch hole.

3. The track frame accessory weld positioning fixture of claim 2, wherein, The fixing assembly (6) further comprises a gasket (62) and a tension spring (63), the gasket (62) is sleeved on the end of the latch part (46) and is arranged on the inner side of the locking pin (61), and the tension spring (63) is sleeved on the latch part (46) and the two ends thereof abut against the bottom surface of the mounting support (3) and the gasket (62) respectively.

4. The track frame attachment welding fixture of any of claims 1-3, wherein, The positioning frame assembly (2) comprises a connecting frame (22) and a first positioning disc (23) and a second positioning disc (24) coaxially arranged at the two ends of the connecting frame (22) along the axial direction, the first positioning disc (23) is coaxially connected to the mounting flange, and the second positioning disc (24) extends out of the mounting cavity (12).

5. A track frame attachment welding positioning structure characterized by, The track frame accessory welding positioning structure comprises: a speed reducer mounting frame (11) provided with a track frame accessory mounting position on the outer wall and provided with a mounting cavity (12) extending along the axial direction in the interior, and the mounting cavity (12) is provided with a mounting flange (13) in the interior; a positioning frame assembly (2) mounted on the mounting flange (13) and having one end being an extended end (21) extending out of the mounting cavity (12), and the extended end (21) being provided with a mounting support (3); and a positioning seat (4) mounted on the mounting support (3) and comprising a positioning end extending to the outer peripheral wall of the mounting cavity (12) along the axial direction, and the positioning end being provided with a positioning hole (5), and the positioning hole (5) being used for aligning with the track frame accessory mounting position; The mounting support (3) is provided with a guide groove (34) extending along the axial direction, the positioning seat (4) comprises an extension part (44) and a guide rail part (45) arranged perpendicularly to the extension part (44), the guide rail part (45) is used for clamping the guide groove (34) along the guide rail extension direction, and the guide rail extension direction of the guide rail part (45) is the same as the extension direction of the extension part (44). The bottom wall of the guide groove (34) is further provided with a fixing hole (35), and the positioning seat (4) further comprises a bolt part (46) used for inserting the fixing hole (35), and the bolt part (46) is locked in the fixing hole (35) through a fixing assembly (6).

6. The track frame accessory weld positioning structure of claim 5, wherein, The positioning frame assembly (2) comprises a connecting frame (22) and first and second positioning discs (23) and (24) coaxially arranged at both ends of the connecting frame (22) along the axial direction, and the mounting support (3) is arranged on the second positioning disc (24).

7. The track frame accessory weld positioning structure of claim 5, wherein, The speed reducer mounting frame (11) comprises a cylindrical part (111), the outer peripheral wall of the cylindrical part (111) is provided with a first mounting position (71), the mounting support (3) comprises a first mounting support (31), the positioning seat (4) comprises a first positioning seat (41) arranged on the first mounting support (31) and the positioning end extending to the outer peripheral side of the cylindrical part (111) along the axial direction, the positioning end of the first mounting support (31) is provided with a first positioning hole (51) extending radially towards the central axis (131) of the mounting flange (13), and the first positioning hole (51) is radially aligned with the first mounting position (71).

8. The track frame accessory weld positioning structure of claim 7, wherein, The speed reducer mounting frame (11) further comprises a straight plate part (112) extending along a first direction, the outer wall of the straight plate part (112) is provided with a second mounting position (72), the mounting support (3) comprises a second mounting support (32) arranged on the protruding end (21) and extending along the first direction at one end, and the positioning seat (4) comprises a second positioning seat (42) arranged on the second mounting support (32) and the positioning end extending to the outer wall outside of the straight plate part (112) along the axial direction, the positioning end of the second positioning seat (42) is provided with a second positioning hole (52) perpendicular to the outer wall of the straight plate part (112), and the second positioning hole (52) is aligned with the second mounting position (72).

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