Mine car rear axle housing assembly tool

Abstract

A mine car rear axle housing assembly tool relates to the mine car axle housing assembly technical field. It includes an assembly platform and an axle housing positioning adjusting device, a suspension cylinder seat positioning device and a bearing seat support positioning device. The axle housing positioning adjusting device includes a first axle housing positioning device and a jacking adjusting device arranged oppositely along a first direction. The first axle housing positioning device has a first positioning surface for supporting the outer contour of the axle housing. The first axle housing positioning device has a positioning screw rod along the first direction. The jacking adjusting device has a second positioning surface for supporting the outer contour of the axle housing. The jacking adjusting device has an adjusting screw rod which is movable along the first direction. The suspension cylinder seat positioning device and the bearing seat support positioning device are opposite along a second direction. The suspension cylinder seat positioning device has a positioning pipe along the second direction. The bearing seat support positioning device has a profiling pipe along the first direction. The mine car rear axle housing assembly tool of the present disclosure can be used for assembling the mine car rear axle housing, which is beneficial to improving the assembly precision of the mine car rear axle housing.

Description

Technical Field

[0001] This disclosure relates to the field of mining truck axle housing assembly technology, and more specifically, to a tooling for assembling a rear axle housing of a mining truck. Background Technology

[0002] As a crucial central component of the mining car, the rear axle housing connects important parts such as the thrust arm and suspension cylinder via bearings, requiring high assembly precision. The rear axle housing steel structure is primarily cylindrical, with high-precision attachments mounted on its annular surface. It is characterized by its complex structure, significant weight, and the difficulty in assembling the attachments, posing a high risk factor and making it challenging to guarantee dimensional accuracy. Utility Model Content

[0003] This disclosure provides a tooling for assembling the rear axle housing of a mine car, which can be used to assemble the rear axle housing of a mine car, thereby improving the assembly accuracy of the rear axle housing of the mine car.

[0004] This disclosure provides a tooling for assembling the rear axle housing of a mining car, including an assembly platform and an axle housing positioning and adjusting device, a suspension cylinder seat positioning device, and a bearing seat support and positioning device disposed on the assembly platform. The axle housing positioning and adjustment device includes a first axle housing positioning device and a tightening adjustment device; The first axle housing positioning device and the tightening adjustment device are arranged opposite to each other along the first direction; the first axle housing positioning device has a first positioning surface for supporting the outer contour of the axle housing; the first axle housing positioning device has a positioning screw along the first direction; the tightening adjustment device has a second positioning surface for supporting the outer contour of the axle housing; the tightening adjustment device has an adjustment screw, which is movably arranged along the first direction. The cylinder suspension seat positioning device and the bearing seat support positioning device are arranged opposite to each other along the second direction; The cylinder seat positioning device has a positioning tube along a second direction; the bearing seat support positioning device has a contour tube along a first direction. The first and second directions are both parallel to the pairing platform; the first direction is perpendicular to the second direction.

[0005] In one exemplary embodiment of this disclosure, the first bridge housing positioning device includes a first support plate and a pressure iron; the first support plate is disposed on the side of the first positioning surface away from the tightening adjustment device along a first direction; the first support plate is arranged parallel to the assembly platform; a guide screw is provided on the top of the first support plate, and the guide screw is perpendicular to the first support plate; the pressure iron is sleeved on the guide screw, and the pressure iron is movably disposed along the guide screw; the pressure iron extends at least along the first direction.

[0006] In one exemplary embodiment of this disclosure, the orthographic projection of the pressure iron onto the assembly platform surface partially coincides with the orthographic projection of the first positioning surface onto the assembly platform surface.

[0007] In one exemplary embodiment of this disclosure, the mine car rear axle housing assembly tooling further includes a second axle housing positioning device; the second axle housing positioning device is disposed between the first axle housing positioning device and the tightening adjustment device along a first direction; the second axle housing positioning device has a stop extending along a direction perpendicular to the assembly platform; the stop is used to extend vertically into the axle housing through-line window.

[0008] In one exemplary embodiment of this disclosure, the second axle housing positioning device includes a second base plate, a second axle housing positioning device body, and a pad; the second base plate, the second axle housing positioning device body, and the pad are welded together sequentially from bottom to top; the second base plate is fixed to the assembly platform; the upper surface of the pad is provided with a stop block mounting groove, and the stop block is detachably installed in the stop block mounting groove.

[0009] In one exemplary embodiment of this disclosure, the stop has a limiting part and a connecting part connected to each other; the limiting part is disposed at the top of the connecting part, and the connecting part is detachably installed in the stop mounting groove; the width of the limiting part along the first direction is greater than that of the connecting part.

[0010] In one exemplary embodiment of this disclosure, the cylinder seat positioning device includes a second support plate; the second support plate is arranged parallel to the assembly platform; a first positioning plate is provided on the top of the second support plate, and a second positioning plate is provided on the top of the first positioning plate; the second positioning plate is movably arranged relative to the first positioning plate in a direction perpendicular to the assembly platform; and a positioning tube is clamped between the first positioning plate and the second positioning plate.

[0011] In one exemplary embodiment of this disclosure, a first support screw is vertically provided on the top of the second support plate, and the first support screw is located below the positioning tube.

[0012] In one exemplary embodiment of this disclosure, the cylinder seat positioning device includes a pair of support seats; the two support seats are respectively disposed on both sides of the second support plate along a first direction; the support seat has an inclined plate facing the positioning tube, the inclined plate is not perpendicular to the assembly platform; a second support screw is vertically disposed on the inclined plate.

[0013] In one exemplary embodiment of this disclosure, the bearing housing support positioning device includes a pair of third support screws; the third support screws are located on the side of the profile tube near the cylinder seat positioning device; the two third support screws are arranged opposite each other along the axis of the profile tube, and the third support screws can be arranged relatively close to each other or relatively far apart.

[0014] The axle housing positioning and adjusting device disclosed herein can support the outer contour of the axle housing through the first positioning surface of the first axle housing positioning device and the second positioning surface of the tightening adjusting device, and tighten the rear axle housing along the first direction through the positioning screw and the adjusting screw; and position is achieved by the positioning tube passing through the center hole on the rear axle housing suspension cylinder seat along the second direction and the contour tube passing through the front end hole of the bearing seat. It can be used in the assembly process of the rear axle housing and accessories, and can stably support the rear axle housing, positioning and tightening the rear axle housing from multiple directions, effectively improving the accuracy of the assembly; at the same time, it helps to improve the stability of the rear axle housing installed on the axle housing positioning and adjusting device, thereby improving the safety of the assembly process.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] Figure 1 This is an exemplary embodiment of the tooling for the rear axle housing assembly of a mining car disclosed herein, in which the rear axle housing of the mining car is positioned by an axle housing positioning and adjustment device.

[0018] Figure 2 This is a schematic diagram of an exemplary embodiment of the tooling for the rear axle housing assembly of the mining car disclosed herein.

[0019] Figure 3 This is a schematic diagram of the first axle housing positioning device in an exemplary embodiment of the tooling for the rear axle housing assembly of the mining car disclosed herein.

[0020] Figure 4 This is an exemplary embodiment of the tooling for assembling the rear axle housing of a mining car disclosed herein, in which the rear axle housing of the mining car is positioned by a first axle housing positioning device.

[0021] Figure 5 This is an exemplary embodiment of the tooling for assembling the rear axle housing of a mine car disclosed herein, in which the rear axle housing of the mine car is positioned by a first axle housing positioning device and a tightening adjustment device.

[0022] Figure 6 This is an exemplary embodiment of the tooling for assembling the rear axle housing of a mining car disclosed herein, in which the rear axle housing of the mining car is positioned by a second axle housing positioning device.

[0023] Figure 7This is a schematic diagram of the second axle housing positioning device in an exemplary embodiment of the tooling for the rear axle housing assembly of the mining car disclosed herein.

[0024] Figure 8 This is an exemplary embodiment of the tooling for assembling the rear axle housing of a mine car disclosed herein, in which the rear axle housing of the mine car is positioned by a suspension cylinder seat positioning device.

[0025] Figure 9 This is a schematic diagram of the suspension cylinder seat positioning device in one exemplary embodiment of the tooling for the rear axle housing assembly of the mine car disclosed herein.

[0026] Figure 10 This is an exemplary embodiment of the tooling for the rear axle housing assembly of a mining car disclosed herein, in which the rear axle housing of the mining car is positioned by a bearing seat support positioning device.

[0027] Figure 11 This is a schematic diagram of a bearing housing support and positioning device in one exemplary embodiment of the tooling for the rear axle housing assembly of a mining car disclosed herein.

[0028] Figure 12 This is a schematic diagram of the bearing housing support in one exemplary embodiment of the tooling for the rear axle housing assembly of the mining car disclosed herein.

[0029] Explanation of reference numerals in the attached figures: 1. Assembly platform; 100. Rear axle housing spacer; 21. First axle housing positioning device; 210. First positioning surface; 211. Positioning screw; 212. First support plate; 213. Pressure iron; 214. Guide screw; 215. First base plate; 22. Tightening adjustment device; 221. Second positioning surface; 222. Adjusting screw; 23. Second axle housing positioning device; 231. Stop block; 232. Second base plate; 233. Second axle housing positioning device body; 234. Pad block; 3. Cylinder seat positioning device; 31. Positioning tube; 32. Second support plate; 33. First positioning plate; 34. Second positioning plate; 35. First support screw; 36. Support seat; 361. Inclined plate; 362. Second support screw; 4. Bearing seat support positioning device; 41. Contouring tube; 42. Third support screw; 43. Third positioning plate; 44. Fourth positioning plate; 5. Bearing seat support seat; 51. Tightening bolt; 6. Positioning block. Detailed Implementation

[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0031] Unless otherwise specified or stated, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “a,” “an,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “comprising” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to those listed; the terms “first” and “second” are used only as illustrative marks and are not intended to limit the number, importance, or order of the objects.

[0032] The terms “connection” and “fixation” should be interpreted broadly. For example, unless otherwise specified, “connection” can be a fixed connection, a movable connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.

[0033] The phrase "part A is located on part B" as described in this disclosure can mean that part A is directly connected to part B, or that part A is located on part C, and part C is located on part B.

[0034] Furthermore, in this application, directional terms such as "upper" and "lower" are used only to indicate relative positional relationships. For example, for convenience, they are defined with the assembly platform 1 placed on the ground as a reference, or relative to the orientation of the components shown in the accompanying drawings. For example, it should be understood that these directional terms are relative concepts and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0035] This disclosure provides a tooling for assembling the rear axle housing of a mining car, with reference to... Figures 1 to 12 As shown, it includes an assembly platform 1 and an axle housing positioning and adjusting device, a cylinder seat positioning device 3 and a bearing seat support positioning device 4, all mounted on the assembly platform 1. Figure 1 A schematic diagram is shown showing how the rear axle housing of a mining car is positioned using an axle housing positioning adjustment device. Figure 2 A schematic diagram of an exemplary embodiment of the bridge housing positioning adjustment device is shown.

[0036] The axle housing positioning and adjustment device includes a first axle housing positioning device 21 and a tightening adjustment device 22; the first axle housing positioning device 21 and the tightening adjustment device 22 are arranged opposite to each other along a first direction; the first axle housing positioning device 21 has a first positioning surface 210 for supporting the outer contour of the axle housing; the first axle housing positioning device 21 has a positioning screw 211 along the first direction; the tightening adjustment device 22 has a second positioning surface 221 for supporting the outer contour of the axle housing; the tightening adjustment device 22 has an adjusting screw 222, which is movably arranged along the first direction.

[0037] The cylinder suspension seat positioning device 3 and the bearing seat support positioning device 4 are arranged opposite to each other along the second direction. The cylinder suspension seat positioning device 3 has a positioning tube 31 along the second direction; the bearing seat support positioning device 4 has a contour tube 41 along the first direction.

[0038] The first direction and the second direction are both parallel to the pairing platform 1; the first direction and the second direction are perpendicular.

[0039] refer to Figures 1 to 2 As shown, for ease of description and understanding, the direction perpendicular to the assembly platform 1 is defined as the Z direction, and the first direction and the second direction are the X direction and the Y direction, respectively, forming a three-dimensional rectangular coordinate system.

[0040] The axle housing positioning and adjustment device disclosed herein can support the outer contour of the axle housing through the first positioning surface 210 of the first axle housing positioning device 21 and the second positioning surface 221 of the tightening adjustment device 22, and tighten the rear axle housing along the X direction through the positioning screw 211 and the adjusting screw 222; and position it by passing through the center hole on the rear axle housing suspension cylinder seat through the positioning tube 31 along the Y direction and the front end hole of the bearing seat through the contour tube 41. It can be used for the assembly process of the rear axle housing and accessories, and can stably support the rear axle housing, positioning and tightening the rear axle housing from multiple directions, effectively improving the accuracy of the assembly; at the same time, it helps to improve the stability of the rear axle housing installed on the axle housing positioning and adjustment device, thereby improving the safety of the assembly process.

[0041] In one exemplary embodiment of this disclosure, reference is made to Figure 3As shown, the first axle housing positioning device 21 may include a first base plate 215, which can be fixed to the assembly platform 1. The first axle housing positioning device 21 may also include a first contour plate, which is perpendicular to the first base plate 215, and a first positioning surface 210 is formed on the top of the first contour plate. The first contour plate may be a three-layer design, reinforced by three rows of stiffening plates to ensure the accuracy and consistency of the three layers. The innermost (closest to the tightening adjustment device 22) first contour plate can support the axle housing balance, while the outermost (farthest from the tightening adjustment device 22) two layers of first contour plates can evenly support the rear axle housing spacer 100, preventing tilting of the rear axle housing spacer 100 and the axle housing during assembly, thus improving the accuracy of the assembly.

[0042] For example, refer to Figure 4 As shown, the distance between the innermost first profile plate and the middle first profile plate is greater than the distance between the middle first profile plate and the outermost first profile plate. This helps the innermost first profile plate to effectively avoid the weld between the axle housing and the rear axle housing spacer 100, preventing the weld from affecting the tooling assembly and improving the assembly accuracy.

[0043] The first bridge housing positioning device 21 may include a first support plate 212, as shown in the reference. Figure 3 As shown, the first support plate 212 is located on the side of the first positioning surface 210 away from the tightening adjustment device 22 along the X direction. The first support plate 212 is arranged parallel to the assembly platform 1. A guide screw 214 is provided on the top of the first support plate 212, and the guide screw 214 is perpendicular to the first support plate 212. A pressure iron 213 is sleeved on the guide screw 214 and is movably arranged along the guide screw 214. The pressure iron 213 extends at least along the X direction.

[0044] For example, the orthographic projection of the pressure plate 213 on the surface of the assembly platform 1 coincides with the orthographic projection of the first positioning surface 210 on the surface of the assembly platform 1. The front end of the pressure plate 213 can be placed inside the rear axle housing, and the guide screw 214 is tightened by tightening with a shoulder nut to ensure the stability of the rear axle housing assembly during tooling.

[0045] For example, in the first bridge housing positioning device 21, except for the positioning screw 211 and the guide screw 214, all other components can be connected by welding to improve stability and load-bearing capacity.

[0046] For example, refer to Figure 2 and Figure 3 As shown, the positioning screws 211 are arranged in pairs on both sides of the first support plate 212 and the pressure iron 213 in the Y direction.

[0047] refer to Figure 1 , Figure 2As shown, the tightening adjustment device 22 can have a similar overall structure to the first axle housing positioning device 21. For example, the tightening adjustment device 22 can also include a base plate for connecting to the assembly platform 1, and a second contour plate similar to the first contour plate. The tightening adjustment device 22 has an adjusting screw 222 at the corresponding position of the positioning screw 211 of the first axle housing positioning device 21. The rear axle housing is laterally attached to the first axle housing positioning device 21, and is tightened by adjusting the adjusting screw 222 in the tightening adjustment device 22 to fix the rear axle housing. (Refer to...) Figure 5 As shown, it can serve to tighten, adjust, and position the object.

[0048] In one exemplary embodiment of this disclosure, the tooling for the mine car rear axle housing assembly further includes a second axle housing positioning device 23. (See reference...) Figures 6 to 7 As shown, Figure 6 A schematic diagram showing the second axle housing positioning device 23 engaging with the rear axle housing is shown. Figure 7 A schematic diagram of the second axle housing positioning device 23 is shown. (Reference) Figure 2 As shown, the second bridge housing positioning device 23 is disposed between the first bridge housing positioning device 21 and the tightening adjustment device 22 along the X direction; the second bridge housing positioning device 23 has a stop 231 extending along the direction perpendicular to the assembly platform 1; the stop 231 is used to extend vertically into the bridge housing wire passage window.

[0049] Specifically, the second axle housing positioning device 23 may include a second base plate 232, a second axle housing positioning device body 233, and a pad 234. The second base plate 232, the second axle housing positioning device body 233, and the pad 234 are welded together sequentially from bottom to top. The second base plate 232 is fixed to the assembly platform 1. The upper surface of the pad 234 is provided with a stop block mounting groove, and the stop block 231 is detachably installed in the stop block mounting groove. During the assembly process, the rear axle housing is placed with the wire passage window facing down. After the rear axle housing is placed on the mine car rear axle housing assembly fixture, the stop block 231 is inserted into the wire passage window and placed in the stop block mounting groove. The stop block 231 restricts the rear axle housing from rolling in the front and rear directions, thus playing a positioning role.

[0050] For example, refer to Figure 7 As shown, the stop block 231 has a limiting part and a connecting part connected together; the limiting part is located at the top of the connecting part, and the connecting part is detachably installed in the stop block mounting groove; the width of the limiting part along the first direction is greater than that of the connecting part. The stop block 231 can be T-shaped as a whole. When the rear axle housing is placed on the rear axle housing assembly tooling of the mine car, the limiting part can extend into the guide window, which has a better positioning and limiting effect.

[0051] In one exemplary embodiment of this disclosure, reference is made to Figure 9As shown, the cylinder seat positioning device 3 includes a second support plate 32; the second support plate 32 is arranged parallel to the assembly platform 1; a first positioning plate 33 is provided on the top of the second support plate 32, and a second positioning plate 34 is provided on the top of the first positioning plate 33. The second positioning plate 34 is movably arranged relative to the first positioning plate 33 in a direction perpendicular to the assembly platform 1, and the positioning tube 31 is clamped between the first positioning plate 33 and the second positioning plate 34.

[0052] For example, the second positioning plate 34 can be bolted to the positioning tube 31, and the positioning tube 31 positions the suspension cylinder seat on the rear axle housing. The first positioning plate 33 and the second positioning plate 34 can be arranged in groups along the Y direction. For example, two groups of first positioning plates 33 and second positioning plates 34 are provided along the Y direction, which helps to improve the positioning accuracy of the positioning tube 31.

[0053] In one exemplary embodiment of this disclosure, reference is made to Figure 8 , Figure 9 As shown, a first support screw 35 is vertically provided on the top of the second support plate 32, and the first support screw 35 is located below the positioning tube 31. The first support screw 35 can serve to support the cylinder seat.

[0054] In one exemplary embodiment of this disclosure, reference is made to Figure 8 , Figure 9 As shown, the cylinder seat positioning device 3 also includes a pair of support seats 36. The two support seats 36 are respectively located on both sides of the second support plate 32 along the first direction. Each support seat 36 has an inclined plate 361 facing the positioning tube 31, and the inclined plate 361 is not perpendicular to the assembly platform 1; a second support screw 362 is vertically mounted on the inclined plate 361. The second support screw 362 can also be used to support the cylinder seat, preventing lateral displacement of the cylinder seat. Furthermore, the X-axis position of the cylinder seat can be adjusted by adjusting the second support screw 362, improving assembly accuracy.

[0055] In one exemplary embodiment of this disclosure, reference is made to Figure 10 , Figure 11 As shown, the two opposite ends of the contour tube 41 can be respectively equipped with a third positioning plate 43 and a fourth positioning plate 44, with the two opposite ends of the contour tube 41 clamped between the third positioning plate 43 and the fourth positioning plate 44. The third positioning plate 43 and the fourth positioning plate 44 can be respectively set on the third support plate. When assembling the bearing housing, the contour tube 41 can be inserted into the front hole of the bearing housing and placed together on the third positioning plate 43 and the fourth positioning plate 44 of the third support plate, and the third positioning plate 43 and the fourth positioning plate 44 can be tightened relative to each other with bolts to achieve positioning.

[0056] refer to Figure 10 , Figure 11As shown, the bearing housing support and positioning device 4 includes a pair of third support screws 42. The third support screws 42 are located on the side of the contour tube 41 near the cylinder seat positioning device 3; the two third support screws 42 are arranged opposite each other along the axis of the contour tube 41, and can be positioned relatively close or relatively far apart. The third support screws 42 can contact the side of the bearing housing, and the X-axis position of the bearing housing can be controlled by the third support screws 42, thus playing a role in adjustment and positioning.

[0057] refer to Figure 12 As shown, the axle housing positioning and adjustment device may also include multiple bearing housing support seats 5. The bottom of the bearing housing is horizontal, and the bearing housing support seats 5 can support the bearing housing from below. The top surface of the bearing housing support seat 5 may have threaded holes, which are connected to tightening bolts 51, allowing for vertical adjustment of the bearing housing's position and level. For example, four bearing housing support seats 5 may be provided below the bearing housing, and these four support seats 5 may be arranged in a rectangular pattern. (Reference) Figure 1 , Figure 2 As shown, multiple positioning blocks 6 can be provided on the outer periphery of each positioning and installation structure on the assembly platform 1. For example, six positioning blocks 6 can be provided on the assembly platform 1. Exemplarily, the length of the positioning block 6 is 100mm, the width is 50mm, and the thickness (height) is 20mm. The outer surface of the positioning block 6 is machined. Using the outer surface of the positioning block as a reference, the rear axle housing can be inspected and adjusted after assembly, which helps to improve the accuracy of assembly.

[0058] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A tooling for assembling the rear axle housing of a mining car, characterized in that, It includes a pairing platform (1) and an axle housing positioning and adjusting device, a cylinder seat positioning device (3) and a bearing seat support positioning device (4) provided on the pairing platform (1). The axle housing positioning and adjustment device includes a first axle housing positioning device (21) and a tightening adjustment device (22). The first axle housing positioning device (21) and the tightening adjustment device (22) are arranged opposite to each other along a first direction; the first axle housing positioning device (21) has a first positioning surface (210) for supporting the outer contour of the axle housing; the first axle housing positioning device (21) has a positioning screw (211) along the first direction; the tightening adjustment device (22) has a second positioning surface (221) for supporting the outer contour of the axle housing; the tightening adjustment device (22) has an adjusting screw (222), which is movably arranged along the first direction; The cylinder seat positioning device (3) and the bearing seat support positioning device (4) are arranged opposite to each other along the second direction; The cylinder seat positioning device (3) has a positioning tube (31) along the second direction; the bearing seat support positioning device (4) has a contour tube (41) along the first direction. Wherein, the first direction and the second direction are both parallel to the pairing platform (1); the first direction and the second direction are perpendicular to each other.

2. The tooling for assembling the rear axle housing of a mining car according to claim 1, characterized in that, The first bridge housing positioning device (21) includes a first support plate (212) and a pressure iron (213); the first support plate (212) is located on the side of the first positioning surface (210) away from the top tightening adjustment device (22) along the first direction; the first support plate (212) is arranged parallel to the assembly platform (1); a guide screw (214) is provided on the top of the first support plate (212), and the guide screw (214) is perpendicular to the first support plate (212); the pressure iron (213) is sleeved on the guide screw (214), and the pressure iron (213) is movably arranged along the guide screw (214); the pressure iron (213) extends at least along the first direction.

3. The tooling for assembling the rear axle housing of a mining car according to claim 2, characterized in that, The orthographic projection of the pressure iron (213) onto the surface of the assembly platform (1) coincides with the orthographic projection of the first positioning surface (210) onto the surface of the assembly platform (1).

4. The tooling for assembling the rear axle housing of a mining car according to claim 1, characterized in that, The rear axle housing assembly tooling of the mine car also includes a second axle housing positioning device (23); the second axle housing positioning device (23) is disposed between the first axle housing positioning device (21) and the tightening adjustment device (22) along the first direction; the second axle housing positioning device (23) has a stop (231) extending in a direction perpendicular to the assembly platform (1); the stop (231) is used to extend vertically into the axle housing through-line window.

5. The tooling for assembling the rear axle housing of a mining car according to claim 4, characterized in that, The second axle housing positioning device (23) includes a second base plate (232), a second axle housing positioning device body (233), and a pad (234); the second base plate (232), the second axle housing positioning device body (233), and the pad (234) are welded together from bottom to top; the second base plate (232) is fixed to the assembly platform (1); the upper surface of the pad (234) is provided with a stop installation groove, and the stop (231) is detachably installed in the stop installation groove.

6. The tooling for assembling the rear axle housing of a mining car according to claim 5, characterized in that, The stop block (231) has a limiting part and a connecting part connected to each other; the limiting part is located at the top of the connecting part, and the connecting part is detachably installed in the stop block mounting groove; the width of the limiting part along the first direction is greater than that of the connecting part.

7. The tooling for assembling the rear axle housing of a mining car according to claim 1, characterized in that, The cylinder seat positioning device (3) includes a second support plate (32); the second support plate (32) is arranged parallel to the assembly platform (1); a first positioning plate (33) is provided on the top of the second support plate (32), and a second positioning plate (34) is provided on the top of the first positioning plate (33); the second positioning plate (34) is movably arranged relative to the first positioning plate (33) in a direction perpendicular to the assembly platform (1); the positioning tube (31) is clamped between the first positioning plate (33) and the second positioning plate (34).

8. The tooling for assembling the rear axle housing of a mining car according to claim 7, characterized in that, The second support plate (32) has a first support screw (35) vertically mounted on its top, and the first support screw (35) is located below the positioning tube (31).

9. The tooling for assembling the rear axle housing of a mining car according to claim 7, characterized in that, The cylinder seat positioning device (3) includes a pair of support seats (36); the two support seats (36) are respectively located on both sides of the second support plate (32) along the first direction; the support seat (36) has an inclined plate (361) facing the positioning tube (31), the inclined plate (361) is not perpendicular to the pairing platform (1); a second support screw (362) is vertically provided on the inclined plate (361).

10. The tooling for assembling the rear axle housing of a mining car according to claim 1, characterized in that, The bearing seat support positioning device (4) includes a pair of third support screws (42); the third support screws (42) are located on the side of the contour tube (41) near the cylinder seat positioning device (3); the two third support screws (42) are arranged opposite each other along the axis of the contour tube (41), and the third support screws (42) can be arranged relatively close to each other or relatively far apart.

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