High-precision railway bogie connecting rod seat assembling tool

Abstract

The utility model relates to the technical field of bogies, in particular to a high-precision railway bogie connecting rod seat assembling tool which comprises a supporting table top. A transverse adjusting mechanism used for adjusting the bogie in the X-axis direction, a longitudinal adjusting mechanism used for adjusting the bogie in the Y-axis direction and a detecting mechanism used for detecting the position of a side face datum plane on the bogie are arranged on the supporting table top. The supporting mechanism is used for supporting the datum plane of the upper top face of the bogie and limiting the bogie in the Y-axis direction, and the positioning and pressing mechanism is used for positioning and pressing a connecting rod base on the bogie. The bogie and the connecting rod seat are positioned, assembled and welded, so that welding deformation can be effectively controlled, and the location degree after welding is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bogies, in particular to a high-precision railway bogie connecting rod seat assembly tool. Background Art

[0002] Rail vehicles are an important link between cities, and have gradually become the main means of transportation in cities. Rail vehicles are also the main carrier for cargo transportation. Rail vehicles mainly include a car body and a bogie arranged under the car body. The bogie is used to carry the car body and realize the running and steering functions.

[0003] After welding the connecting rod seat on the bogie, a connecting rod needs to be connected to the connecting rod seat. The bogie side frame is a casting with a rough surface, irregular shape and complex structure. The connecting rod seat cannot be positioned when welding, and after welding, the size between the connecting rod seat and the bogie will change again due to thermal deformation. Utility Model Content

[0004] The utility model aims to solve the above defects and provides a high-precision railway bogie connecting rod seat assembly tool.

[0005] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: a high-precision railway bogie connecting rod seat assembly tool, including a supporting table, on which is provided a lateral adjustment mechanism for adjusting the bogie in the X-axis direction, a longitudinal adjustment mechanism for adjusting the bogie in the Y-axis direction, a detection mechanism for position detection of the side reference surface on the bogie, a supporting mechanism for supporting the top reference surface on the bogie and limiting the bogie in the Y-axis direction, and a positioning and clamping mechanism for positioning and clamping the connecting rod seat on the bogie.

[0006] A further improvement includes that the lateral adjustment mechanism includes a screw support frame, a threaded connection sleeve and a screw arranged on the support table, the screw support frame is provided with a threaded connection sleeve, and the screw is connected to the screw through a thread in the threaded connection sleeve.

[0007] A further improvement includes the screw rod support frame adopting a box-type mortise and tenon structure.

[0008] A further improvement includes symmetrically arranging two lateral adjustment mechanisms on the support surface to achieve left and right fine adjustment of the bogie.

[0009] A further improvement includes that the longitudinal adjustment mechanism includes a cylinder support frame arranged on the support table and a thrust cylinder arranged on the cylinder support frame, and the output end of the thrust cylinder is connected to the push rod.

[0010] Further improvements include that the detection mechanism includes an electric push rod support frame arranged on the support table, an induction electric push rod arranged on the electric push rod support frame, and a slider box slidably connected to the support table in the Y-axis direction, the output end of the induction electric push rod is connected to the slider box, and the slider box is provided with a distance sensor for detecting the distance to the side reference surface.

[0011] A further improvement includes that the support mechanism comprises a side frame support frame and a side frame support seat arranged on the side frame support frame to support the top surface reference surface on the bogie, and the side frame support frame is provided with a rear stopper for limiting the position of the bogie in the Y-axis direction.

[0012] A further improvement includes the side frame supporting frame adopting a box-type mortise and tenon structure.

[0013] A further improvement includes the rear stop being arranged on both sides of the side frame support frame.

[0014] A further improvement includes that the positioning and clamping mechanism comprises a connecting rod seat support frame, a cylinder support plate, a clamping cylinder and a pressure rod, the connecting rod seat support frame and the cylinder support plate are arranged on a support table, one end of the clamping cylinder is hinged to the middle part of the pressure rod to support the pressure rod, and the other end is hinged to the cylinder support plate, the lower end of the pressure rod is hinged to the cylinder support plate, the clamping cylinder drives the upper end of the pressure rod to move so as to clamp the connecting rod seat placed on the connecting rod seat support frame, and the connecting rod seat support frame is provided with a contoured positioning groove which matches the shape of the connecting rod seat and is used to load the connecting rod seat.

[0015] A further improvement includes that the connecting rod seat support frame adopts a box-type mortise and tenon structure.

[0016] The beneficial effects of the utility model are as follows: the design can effectively control welding deformation and ensure the position accuracy after welding by positioning, assembling and welding the bogie and the connecting rod seat, thereby eliminating the trouble of manual operation, reducing labor intensity and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is an axial side view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is the front view of the utility model;

[0021] Figure 4This is the front view of the utility model after the bogie is loaded;

[0022] Figure 5 It is a top view of the utility model after the bogie is loaded;

[0023] Figure 6 It is an axle side view of the bogie in the utility model;

[0024] Figure 7 It is a front view of the bogie in the utility model;

[0025] In the figure, 1-support table, 2-screw support frame, 3-screw, 4-side frame support frame, 5-side frame support seat, 6-push rod, 7-slider box, 8-profiling positioning groove, 9-connecting rod seat support frame, 10-rear stopper, 11-threaded connection sleeve, 12-thrust cylinder, 13-cylinder support frame, 14-induction electric push rod, 15-electric push rod support frame, 16-pressure rod, 17-clamping cylinder, 18-cylinder support plate, 19-distance sensor, 20-bogie, 201-top reference surface, 202-side reference surface. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a high-precision railway bogie connecting rod seat assembly tool includes a support table 1, on which are provided a lateral adjustment mechanism for adjusting the bogie 20 in the X-axis direction, a longitudinal adjustment mechanism for adjusting the bogie 20 in the Y-axis direction, a detection mechanism for detecting the position of the side reference surface 202 on the bogie 20, a supporting mechanism for supporting the top reference surface 201 on the bogie 20 and limiting the bogie 20 in the Y-axis direction, and a positioning and clamping mechanism for positioning and clamping the connecting rod seat on the bogie 20. The bogie and the connecting rod seat are positioned and fixed respectively and then welded. This design realizes the positioning, assembly and welding of the bogie and the connecting rod seat, which can control welding deformation, save the trouble of manual operation, reduce labor intensity and improve production efficiency.

[0028] Since the side frame is a casting with a rough surface, irregular shape and complex structure, the outer shape cannot be used as a positioning reference. Instead, the top and side reference surfaces machined inside the side frame are selected as positioning reference surfaces.

[0029] The lateral adjustment mechanism includes a screw support frame 2, a threaded connection sleeve 11 and a screw 3 arranged on the support table 1. The screw support frame 2 is provided with a threaded connection sleeve 11, and the threaded connection sleeve 11 is internally threadedly connected to the screw 3. The screw 3 is rotated to make the screw 3 push the bogie 20 to perform fine adjustment in the X-axis direction. The support table 1 is symmetrically provided with two lateral adjustment mechanisms to achieve left and right fine adjustment of the bogie. The screw support frame 2 adopts a box-type mortise and tenon structure. The mortise and tenon structure is adopted to avoid process errors caused by marking and assembly. At the same time, high-precision laser cutting technology is used to control the mortise and tenon matching clearance within the range of 0.2 mm. In this way, only a small amount of welding is required to control welding deformation and ensure the dimensional accuracy of the tooling.

[0030] The longitudinal adjustment mechanism includes a cylinder support frame 13 arranged on the support table 1 and a thrust cylinder 12 arranged on the cylinder support frame 13. The output end of the thrust cylinder 12 is connected to the push rod 6. The thrust cylinder 12 drives the push rod 6 to push the bogie 20 to move in the Y direction, and cooperates with the support mechanism to realize the longitudinal positioning of the bogie 20.

[0031] The detection mechanism includes an electric push rod support frame 15 arranged on the support table 1, an induction electric push rod 14 arranged on the electric push rod support frame 15, and a slider box 7 slidably connected and arranged on the support table 1 in the Y-axis direction. The output end of the induction electric push rod 14 is connected to the slider box 7. The slider box 7 is provided with a distance sensor 19 for detecting the distance to the side reference surface 202. The induction electric push rod 14 drives the slider box 7 to enter between the side reference surfaces 202. The distance sensor 19 sets the sensing distance to 20mm. As long as the distance between the distance sensor 19 and the side reference surface 202 is greater than or less than 20mm during the forward movement of the slider box 7, the indicator light of the corresponding side sensor is on. After the induction electric push rod 14 receives the signal from the distance sensor 19, the induction electric push rod 14 stops moving forward. The above embodiment is adopted to realize the positioning of the bogie in the X-axis direction, and ensure the position of the bogie and the connecting rod seat in the X-axis direction.

[0032] The support mechanism includes a side frame support frame 4 and a side frame support seat 5 arranged on the side frame support frame 4 to support the top reference surface 201 on the bogie 20, and the side frame support frame 4 is provided with a rear stopper 10 for upper limiting the position of the bogie 20 in the Y-axis direction, and the rear stopper 10 is arranged on both sides of the side frame support frame 4. The bogie 20 is positioned in the Y-direction through the rear stopper 10, and the support mechanism supports both ends of the bogie. The side frame support frame 4 adopts a box-type mortise and tenon structure.

[0033] The positioning and clamping mechanism includes a connecting rod seat support frame 9, a cylinder support plate 18, a clamping cylinder 17 and a pressure rod 16. The connecting rod seat support frame 9 and the cylinder support plate 18 are arranged on the support table 1. One end of the clamping cylinder 17 is hinged to the middle part of the pressure rod 16 to support the pressure rod 16, and the other end is hinged to the cylinder support plate 18. The lower end of the pressure rod 16 is hinged to the cylinder support plate 18. The clamping cylinder 17 drives the upper end of the pressure rod 16 to move so as to clamp the connecting rod seat placed on the connecting rod seat support frame 9. The rod seat support frame 9 is provided with a contoured positioning groove 8 which matches the shape of the connecting rod seat and is used to load the connecting rod seat. By embedding the connecting rod seat into the contoured positioning groove 8 and pressing it, the connecting rod seat can be welded to the bogie 20 in accordance with the prescribed welding sequence and welding parameters in the pressed state. In this way, the welding deformation can be controlled, the position accuracy after welding can be ensured, and deformation during welding can be avoided. In this way, it can be ensured that the assembly direction is correct and the assembly size can be ensured, which is convenient for demoulding and solves the problem of difficult positioning of arc-shaped structural parts. The connecting rod seat support frame 9 adopts a box-type mortise and tenon structure.

[0034] Working principle: hoist the bogie 20 into the tooling, place the top reference surface 201 of the side frame of the bogie 20 on the side frame support seat 5, start the thrust cylinder 12, and push the push rod 6 by the thrust cylinder 12, so that the push rod 6 pushes the side frame of the bogie 20 to move in the Y-axis direction, so that the back of the inner side reference surface 202 of the side frame contacts the rear stopper 10 for limiting;

[0035] At this time, the induction electric push rod 14 is started. Under the action of the thrust, the induction electric push rod 14 drives the slider box 7 forward so that the slider box 7 enters between the side reference surfaces 202. The distance sensor 19 sets the sensing distance to 20 mm. As long as the distance between the distance sensor 19 and the side reference surface 202 is greater than or less than 20 mm during the forward movement of the slider box 7, the indicator light of the corresponding side distance sensor 19 is on, and the distance sensor 19 is electrically connected to the induction electric push rod 14. At this time, the induction electric push rod 14 stops working. Since the clearance between the slider box 7 and the side reference surface 202 is small, the manual fine-tuning screw rod 3 drives the bogie 20 to move left and right until the indicator light of the distance sensor 19 goes out. Then, the induction electric push rod 14 is started again to move forward to the specified position until the side frame is in place.

[0036] Next is the assembly of the connecting rod seat. The connecting rod seat is placed in the contoured positioning groove 8. At this time, the pneumatic clamping cylinder 17 makes the compression rod 16 clamp the connecting rod seat. Then, under the clamping state, it is welded with the bogie 20 according to the prescribed welding sequence and welding parameters. In this way, the welding deformation can be controlled. After completion, let it stand for a while and then turn on all control switches to lift out the tooling.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision railway bogie connecting rod seat assembly tool, characterized in that: The invention comprises a support table (1), wherein the support table (1) is provided with a lateral adjustment mechanism for adjusting a bogie (20) in an X-axis direction, a longitudinal adjustment mechanism for adjusting the bogie (20) in a Y-axis direction, a detection mechanism for detecting the position of a side reference surface (202) on the bogie (20), a support mechanism for supporting a top reference surface (201) on the bogie (20) and limiting the position of the bogie (20) in the Y-axis direction, and a positioning and clamping mechanism for positioning and clamping a connecting rod seat on the bogie (20).

2. A high-precision railway bogie connecting rod seat assembly tool as claimed in claim 1, characterized in that: The lateral adjustment mechanism comprises a screw support frame (2), a threaded connection sleeve (11) and a screw (3) arranged on the support table (1); the screw support frame (2) is provided with a threaded connection sleeve (11), and the threaded connection sleeve (11) is internally threadedly connected to the screw (3).

3. A high-precision railway bogie connecting rod seat assembly tool as claimed in claim 1, characterized in that: The longitudinal adjustment mechanism comprises a cylinder support frame (13) arranged on the support table (1) and a thrust cylinder (12) arranged on the cylinder support frame (13), wherein the output end of the thrust cylinder (12) is connected to a push rod (6).

4. A high-precision railway bogie connecting rod seat assembly tool as claimed in claim 1, characterized in that: The detection mechanism comprises an electric push rod support frame (15) arranged on the support table (1), an induction electric push rod (14) arranged on the electric push rod support frame (15), and a slider box (7) slidably connected to the support table (1) in the Y-axis direction, wherein the output end of the induction electric push rod (14) is connected to the slider box (7), and the slider box (7) is provided with a distance sensor (19) for detecting the distance to the side reference surface (202).

5. The high-precision railway bogie connecting rod seat assembly tool as claimed in claim 1, characterized in that: The support mechanism comprises a side frame support frame (4) and a side frame support seat (5) arranged on the side frame support frame (4) to support a top reference surface (201) on the bogie (20), and the side frame support frame (4) is provided with a rear stopper (10) for limiting the position of the bogie (20) in the Y-axis direction.

6. A high-precision railway bogie connecting rod seat assembly tool as claimed in claim 5, characterized in that: The rear stoppers (10) are arranged on both sides of the side frame support frame (4).

7. The high-precision railway bogie connecting rod seat assembly tool as claimed in claim 1, characterized in that: The positioning and clamping mechanism comprises a connecting rod seat support frame (9), a cylinder support plate (18), a clamping cylinder (17) and a pressure rod (16); the connecting rod seat support frame (9) and the cylinder support plate (18) are arranged on the support table (1); one end of the clamping cylinder (17) is hinged to the middle part of the pressure rod (16) so as to support the pressure rod (16); the other end is hinged to the cylinder support plate (18); the lower end of the pressure rod (16) is hinged to the cylinder support plate (18); the clamping cylinder (17) drives the upper end of the pressure rod (16) to move so as to clamp the connecting rod seat placed on the connecting rod seat support frame (9); the connecting rod seat support frame (9) is provided with a contoured positioning groove (8) matching the outer shape of the connecting rod seat and used for loading the connecting rod seat.

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