Universal press-fitting tool for gear box suspender assembly for subway bogie

Abstract

The utility model discloses a universal press fitting tool for a gear box suspender assembly for a subway bogie, which is used for press fitting of a gear box suspender and rubber nodes at two ends of the gear box suspender and comprises an upper die and a lower die. The upper die comprises an upper die plate, guide sleeves, a pressure head and a fastening bolt, the guide sleeves are arranged at the two ends of the upper die plate, and the pressure head with the adjustable position is arranged on the upper die plate and applies pressure to a rubber node during press fitting; the lower die comprises a lower die plate, guide columns, a positioning seat assembly and fastening bolts, the guide columns are arranged at the two ends of the lower die plate, and the guide columns can be sleeved with the guide sleeves for matched positioning; the positioning seat assembly is matched with the pressing head, the rotating angle and / or the position of the positioning seat assembly can be adjusted, and the requirement for press fitting of rubber nodes of gear box suspenders with different angles and / or different lengths is met. The tool is suitable for the press fitting requirements of gear box suspender assemblies of different models, ensures that the sizes of the assembled gear box suspender assemblies meet the technical requirements, and is very high in universality; according to the utility model, the tool investment cost in the early stage of a project can be greatly reduced, and the project development period is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of subway bogie manufacturing technology, and relates to a universal pressing tool for the assembly of gearbox hangers for subway bogies, which is mainly used for pressing the nodes of gearbox hanger assemblies of different models. Background Technology

[0002] The gearbox hanger assembly is an important component of the subway bogie. It consists of the gearbox hanger and rubber joints, and is mainly used to connect the gearbox and the bogie frame to ensure the stable installation and normal operation of the gearbox.

[0003] Currently, due to the different vehicle models used in different subway projects, the models of gearbox hangers used in subway bogies are also different, resulting in inconsistencies in the length of the gearbox hangers and the pressing angle of the rubber nodes, which are characterized by small batches and multiple varieties.

[0004] However, when assembling the gearbox hanger and rubber node, special press-fitting fixtures are required to ensure the accuracy of assembly dimensions and press-fitting angles. Therefore, the cost of press-fitting fixtures for gearbox hangers and rubber nodes for different vehicle models is high and the cycle is long in the early stages of the project.

[0005] In summary, designing a universal tooling for press-fitting adjustable gearbox lifting rods can significantly reduce the initial tooling investment cost and shorten the project development cycle for gearbox lifting rod assemblies. Summary of the Invention

[0006] To address the shortcomings and deficiencies in existing technologies, the purpose of this utility model is to provide a universal press-fit tooling for gearbox hanger assemblies used in subway bogies. This tooling can meet the assembly requirements of different models of gearbox hanger assemblies, ensuring that the dimensions of the assembled gearbox hanger assembly meet technical requirements. It can also significantly reduce the initial tooling investment cost of projects and shorten the project development cycle.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] A universal pressing fixture for a gearbox hanger for a subway bogie is used for pressing the gearbox hanger and the rubber joints at both ends. It includes an upper mold and a lower mold. The upper mold includes an upper template, guide sleeves, a pressure head and fastening bolts. Guide sleeves are provided at both ends of the upper template, and the upper template is provided with an adjustable pressure head to apply pressure to the rubber joints during pressing.

[0009] The lower mold consists of a lower template, guide pillars, positioning seats, and fastening bolts. Guide pillars are provided at both ends of the lower template, and the guide pillars can be fitted into the guide sleeves for positioning. The positioning seats cooperate with the pressure head, and the positioning seats can be adjusted in rotation angle and / or position to meet the needs of pressing rubber nodes of gearbox lifting rods at different angles and / or different lengths.

[0010] Furthermore, the upper template is provided with two pressure heads, and the lower template is provided with two corresponding positioning seats.

[0011] Furthermore, the positioning seat assembly includes a positioning pressure plate and a positioning seat. The positioning pressure plate is sleeved on the positioning seat, and the position of the positioning pressure plate and the positioning seat is adjustable. The positioning seat is rotatable. The positioning seat includes a seat body, and the bottom of the seat body is provided with a stepped protruding flange. The bottom of the positioning pressure plate is provided with a corresponding matching circular recess, and the circular recess presses on the protruding flange, and the protruding flange is rotatable.

[0012] Furthermore, a sliding groove is provided on the lower template, and the positioning plate slides laterally in the sliding groove; a threaded hole is provided in the sliding groove, which corresponds to the waist-shaped hole on the positioning plate. A bolt is used to pass through the waist-shaped hole and the threaded hole to lock the position of the positioning plate and simultaneously lock the seat.

[0013] Furthermore, the seat body is equipped with a spring and a positioning ring. The positioning ring is fixed at an angle by a limiting block, which is fixed on both sides of the top of the seat body. The bottom of the positioning ring is connected to a spring for resetting the positioning ring upwards. The top of the positioning ring is connected to a positioning block for positioning the rubber nodes.

[0014] Furthermore, the positioning block is replaceable and connected to the positioning ring by bolt fasteners.

[0015] Furthermore, the positioning plate is marked with an indexing plate for adjusting the angle of the positioning seat; the lower template is marked with dimension lines on both sides for adjusting and locking the position of the positioning plate.

[0016] Furthermore, the lower template is machined with a hydraulic press worktable fixing interface.

[0017] Furthermore, the pressure head slides and adjusts within a preset dovetail groove and is fixed by fastening bolts.

[0018] Furthermore, the upper template has positioning guide pin holes at both ends, and the guide sleeve is assembled in the positioning guide pin holes; the upper template has an interface that matches the piston rod of the hydraulic press.

[0019] The beneficial effects of this utility model are as follows:

[0020] (1) The universal pressing tool for the gearbox hanger assembly of the subway bogie of this utility model is applicable to the pressing requirements of different models of gearbox hanger assemblies (for pressing the gearbox hanger and the rubber nodes at both ends), ensuring that the dimensions of the assembled gearbox hanger assembly meet the technical requirements, and has very strong versatility.

[0021] Specifically, by adjusting the position of the upper die's pressure head and the lower die's positioning seat, the press-fitting assembly of gearbox hanger rubber nodes of different lengths can be achieved; by adjusting the rotation angle of the seat, the press-fitting assembly of gearbox hanger rubber nodes of different press-fitting angles can be achieved.

[0022] (2) The gearbox hanger of the subway bogie of this utility model is composed of a universal pressing tool, which can greatly reduce the cost of tooling investment in the early stage of the project and shorten the project development cycle.

[0023] (3) In addition, the gearbox hanger of the subway bogie of this utility model is composed of a universal pressing tool, and the rubber nodes at both ends of the gearbox hanger are pressed at the same time, which improves the assembly efficiency (can improve work efficiency by 40%).

[0024] (4) The subway bogie of this utility model is composed of a gearbox hanger rod and is a universal pressing tool. It is easy to use, no longer requires manual pressing, and is time-saving, labor-saving, and has low labor intensity.

[0025] (5) The universal pressing tool for the gearbox hanger assembly of the subway bogie of this utility model is practical and reliable. It is applicable to the pressing of gearbox hanger assemblies and can be promoted and used in the railway industry. It has broad application prospects. Attached Figure Description

[0026] Figure 1 This is a top view of the rubber node;

[0027] Figure 2 This is a side view of the rubber node;

[0028] Figure 3 This is a top view of the rubber node from another angle;

[0029] Figure 4 yes Figure 3 AA section view;

[0030] Figure 5 It is a 3D diagram of a rubber node;

[0031] Figure 6 This is a schematic diagram of the gearbox lifting rod;

[0032] Figure 7 This is a top view of the assembly of the gearbox lifting rod and rubber joint (components of the gearbox lifting rod);

[0033] Figure 8 It is a 3D assembly diagram of the gearbox lifting rod and rubber joint (components of the gearbox lifting rod);

[0034] Figure 9 This is a top view of the upper mold;

[0035] Figure 10 yes Figure 9AA section view;

[0036] Figure 11 yes Figure 9 BB section view;

[0037] Figure 12 This is a 3D view of the lower mold;

[0038] Figure 13 This is a top view of the lower mold;

[0039] Figure 14 yes Figure 13 BB section view;

[0040] Figure 15 yes Figure 13 CC section view in the middle;

[0041] Figure 16 This is a diagram of the press-fitting process;

[0042] Figure 17 This is a press-fit sectional view;

[0043] Among them, 1-upper template, 2-guide sleeve, 3-pressure head, 4-lower template, 5-guide post, 6-positioning pressure plate, 7-seat body, 8-spring, 9-limiting block, 10-positioning ring, 11-positioning block;

[0044] 41-Sliding groove,

[0045] 61-Oval hole, 62-Circular concave platform;

[0046] 71 - Outwardly projecting flange face;

[0047] D-Mandrel, E-Rubber layer, F-Outer ring, G-Rubber joint, H-Gearbox hanger. Detailed Implementation

[0048] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0049] Example 1:

[0050] The universal pressing tooling for the gearbox hanger of the subway bogie in this embodiment is used for pressing the gearbox hanger H and the rubber joints G at both ends, and includes an upper mold and a lower mold.

[0051] Among them, such as Figures 9 to 11As shown, the upper mold includes an upper template 1, guide sleeves 2, a pressure head 3, and fastening bolts. Guide sleeves 2 are provided at both ends of the upper template 1. The guide sleeves 2 are used for positioning the upper and lower molds during pressing (the guide post 5 of the lower mold is inserted into the guide sleeve 2). The upper template 1 is provided with a pressure head 3, which applies pressure to the outer ring F of the rubber node G during pressing. The position of the pressure head 3 is adjustable. Specifically, the pressure head 3 slides and adjusts in the machined dovetail groove and is fixed by the fastening bolts to meet the adjustment of the distance between the two nodes of different gearbox lifting rods H. It is used in conjunction with the positioning seat of the lower mold for pressing.

[0052] Preferably, the upper mold is equipped with two adjustable pressure heads 3, which can slide and adjust within the processed dovetail groove to meet the adjustment of the distance between the nodes at both ends of the gearbox lifting rod H. They are used in conjunction with the positioning seat of the lower mold for pressing, so that the rubber nodes G at both ends of the gearbox lifting rod H can be pressed at the same time, which can improve work efficiency.

[0053] Preferably, the upper mold is provided with positioning guide pin holes, and guide sleeves 2 are installed in the positioning guide pin holes so that the upper and lower molds can be positioned together during use.

[0054] In addition, the upper template 1 is machined with an interface that matches the piston rod of the hydraulic press for assembly and connection.

[0055] Among them, such as Figures 12 to 15 As shown, the lower mold consists of a lower template 4, guide pillars 5, positioning seats, and fastening bolts.

[0056] Guide posts 5 are vertically installed at both ends of the lower template 4 so that the tooling can be positioned in conjunction with the guide sleeve 2 of the upper mold during use.

[0057] The lower template 4 is equipped with a positioning seat assembly and bolts. The positioning seat assembly has the function of manually adjusting the rotation angle and position distance.

[0058] The positioning seat consists of a positioning pressure plate 6 and a positioning seat.

[0059] Regarding the positioning plate 6: The positioning plate 6 is located on the lower template 4. The lower template 4 is designed with a sliding groove 41. The positioning plate 6 slides laterally within the sliding groove 41 of the lower template 4 to adjust the node spacing of different gearbox lifting rods. The sliding groove 41 of the lower template 4 is designed with threaded holes, corresponding to the oblong holes 61 designed on the positioning plate 6. After the positioning plate 6 is slidably adjusted to its position, bolts are used to fix the position of the positioning plate 6. Preferably, dimension lines are marked on both sides of the sliding groove 41 of the lower template 4 for easy dimension adjustment and locking.

[0060] Preferably, the positioning plate 6 is marked with an indexing disc for adjusting the angle of the positioning seat.

[0061] Regarding the positioning seat: The positioning seat includes a seat body 7, a positioning block 11, a limiting block 9, a positioning ring 10, a spring 8, and bolt fasteners;

[0062] like Figure 17 As shown, the bottom of the base 7 has a stepped protruding flange surface 71, and the positioning plate 6 is designed with a circular recess 62. The circular recess 62 and the protruding flange surface 71 are correspondingly fitted, and the circular recess 62 presses on the protruding flange surface 71 and can rotate relative to each other. The assembly angle of the gearbox lifting rod node is adjusted by rotating the base 7, and the positioning plate 6 is locked with bolts, which simultaneously locks the base 7; the positioning plate 6 is fitted on the base 7, and after the positioning plate 6 is pressed with bolts, the base 7 is also pressed.

[0063] Preferably, the diameter of the circular recess 62 is 0.1 mm larger than the diameter of the outer circle of the convex flange face 71, and the depth of the circular recess 62 is 0.2 mm larger than the depth of the convex flange face 71, which facilitates assembly.

[0064] The seat 7 is equipped with a spring 8 and a positioning ring 10. The positioning ring 10 is fixed at an angle by a limiting block 9. The limiting block 9 is fixed on both sides of the top of the seat 7. During press-fitting, the positioning ring 10 needs to slide downward to make room, so a positioning angle is required.

[0065] The bottom of the positioning ring 10 is connected to a spring 8, which is used to reset the positioning ring 10 upwards. Here, the spring 8 is designed to push out the positioning ring 10. During the pressing process, the positioning ring 10 will be pressed down. After the pressing is completed and the gearbox lifting rod is removed to assemble the product, the positioning ring 10 will be pushed out by the spring 8 to return to its original position.

[0066] A positioning block 11 is connected to the positioning ring 10 (the positioning block 11 is fixed to the positioning ring 10 by bolts and fasteners) for positioning the rubber node G. Because different models of rubber nodes G have different interface sizes, it is necessary to replace the positioning block 11 with the corresponding specification to match the rubber node G.

[0067] In addition, the lower template 4 is machined with a hydraulic press worktable fixing interface.

[0068] Example 2:

[0069] like Figure 11 As shown, the process of using the universal pressing tool composed of the gearbox hanger of the subway bogie in Example 1 for pressing the gearbox hanger H and the rubber joints G at both ends is as follows:

[0070] Step 1: Based on the required hole distance at both ends of the gearbox hanger H and the assembly angle of the rubber node G, slide and adjust the spacing of the tooling positioning plate 6, and tighten the bolts to lock the positioning plate 6 to meet the size requirements of the gearbox hanger H; at the same time, rotate and adjust the angle of the base 7 to meet the angle requirements of the rubber node G for assembling the gearbox hanger H.

[0071] Adjust the position of the upper mold pressure head 3 by sliding it so that it is concentric with the lower mold base 7.

[0072] Step 2: Place the gearbox lifting rod H on the base 7 of the press-fitting fixture, insert rubber nodes G into the holes on both sides of the gearbox lifting rod H, and insert the mandrel D of the rubber node G into the positioning block 11 of the positioning seat to fix the angle.

[0073] Step 3: Start the hydraulic press to press down the upper template 1. The pressure head 3 of the upper template 1 applies pressure to the outer ring F of the rubber node G, pressing the rubber node G into the gearbox rod H hole at a fixed angle.

[0074] Step four: After the hydraulic press stops applying pressure, the upper template 1 is lifted, the gearbox lifting rod assembly is removed, and the pressing is completed.

[0075] The above description is merely a preferred embodiment of the present utility model and does not constitute a limitation on the scope of protection of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the scope of protection of the claims of the present utility model.

Claims

1. A universal press fitting tool for a gear box boom of a subway bogie, characterized in that, The tool is used for the press-fitting of a gear box boom and rubber nodes at both ends thereof, comprising an upper die and a lower die; The upper die comprises an upper die plate, guide sleeves, a press head and fastening bolts, the guide sleeves are arranged at both ends of the upper die plate, the press head is arranged on the upper die plate and is adjustable in position, and the press head is used to press the rubber nodes during press-fitting; The lower die comprises a lower die plate, guide columns, a positioning seat assembly and fastening bolts, the guide columns are arranged at both ends of the lower die plate, the guide columns can be sleeved into the guide sleeves to cooperate with positioning; the positioning seat assembly cooperates with the press head, the positioning seat assembly is adjustable in rotation angle and / or position, and satisfies press-fitting of rubber nodes of gear box booms of different angles and / or different lengths.

2. A universal press fitting tooling set for a gear box hanger of a metro bogie as claimed in claim 1, wherein, Two press heads are arranged on the upper die plate, and two positioning seat assemblies are correspondingly arranged on the lower die plate.

3. A universal press fitting tooling set for a gear box hanger of a metro bogie as claimed in claim 1 or 2, wherein, The positioning seat assembly comprises a positioning press plate and a positioning seat, the positioning press plate is sleeved on the positioning seat, the positioning press plate is adjustable in position together with the positioning seat, and the positioning seat is rotatable; the positioning seat comprises a seat body, a stepped outer flange is arranged at the bottom of the seat body, a corresponding matching circular recess is arranged at the bottom of the positioning press plate, the circular recess is pressed on the outer flange, and the outer flange is rotatable.

4. A gear box hanger pole assembly general press fitting tool for a metro bogie according to claim 3, characterized in that, A sliding groove is arranged on the lower die plate, the positioning press plate slides transversely in the sliding groove, a threaded hole is arranged in the sliding groove and corresponds to a waist-shaped hole on the positioning press plate, a bolt is used to pass through the waist-shaped hole and the threaded hole, the position of the positioning press plate is locked, and the seat body is simultaneously locked.

5. A gear box hanger pole assembly general press fitting tool for a metro bogie according to claim 4, characterized in that, A spring and a positioning ring are arranged in the seat body, the positioning ring is fixed in angle through a limiting block, the limiting block is fixed at both sides of the top end of the seat body, the bottom of the positioning ring is connected with the spring and is used to reset the positioning ring upward, and a positioning block is connected to the upper surface of the positioning ring and is used to position the rubber nodes.

6. A gear box hanger pole assembly general press fitting tool for a metro bogie as claimed in claim 5, characterized in that, The positioning block is replaceable and is connected to the upper surface of the positioning ring through a bolt fastener.

7. A gear box hanger pole assembly general press fitting tool for a metro bogie as claimed in claim 3, characterized in that, A graduated disc is marked on the positioning press plate and is used for angle adjustment of the positioning seat, and size lines are marked on both sides of the lower die plate and are used for position adjustment and locking of the positioning press plate.

8. A universal press fitting tooling set for a gear box hanger of a metro bogie as claimed in claim 1 or 2, wherein, The lower die plate is processed with a hydraulic machine workbench fixing interface.

9. A gear box hanger pole assembly general press fitting tool for a metro bogie according to claim 1 or 2, characterized in that, The press head is adjusted in sliding in a preset dovetail groove and is fixed through a fastening bolt.

10. A gear box hanger pole assembly general press fitting tool for a metro bogie according to claim 1 or 2, characterized in that, Both ends of the upper die plate are provided with positioning guide column holes, the guide sleeves are arranged in the positioning guide column holes, and an interface matched with a hydraulic machine piston rod is arranged on the upper die plate.

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