Positioning node assembling auxiliary device

Abstract

The utility model discloses a positioning node assembling auxiliary device, which relates to the technical field of track equipment manufacturing and comprises a workbench, a first supporting seat and a second supporting seat, and the first supporting seat is arranged on the upper side of the workbench and used for supporting a positioning node; the first supporting seat is provided with an elliptical positioning pin so as to adjust the position of the first supporting seat; the second supporting base is movably installed on the upper side of the workbench and used for supporting a shaft box body. Wherein the workbench is connected with a lifting mechanism, and the lifting mechanism can lift the workbench to a set angle. The assembling efficiency and reliability of the positioning node and the axle box body can be improved, and the assembling device is suitable for assembling the positioning nodes of various motor train units.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail equipment manufacturing technical field especially, relates to a positioning node assembly auxiliary device. BACKGROUND

[0002] The bogie of motor train unit adopts the pivot arm type axle box, the pivot arm terminal assembly positioning node of axle box, the wheelset axle box composition and the frame composition are connected through the positioning node, and the deviation between the wheelset axle box composition and the frame composition is absorbed and relieved through the positioning node. The positioning node is a key component of the bogie, and after the maintenance is completed, the positioning node needs to be assembled with the axle box. Therefore, the assembly process of the axle box and the positioning node is relatively cumbersome, and the assembly precision cannot be guaranteed. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims at providing a positioning node assembly auxiliary device which can improve the assembly efficiency and reliability of the positioning node and the axle box and is suitable for the assembly of positioning nodes of various motor train units.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme:

[0005] The utility model provides a positioning node assembly auxiliary device, which comprises:

[0006] A workbench;

[0007] A first support seat is arranged on the upper side of the workbench and used for supporting the positioning node. The first support seat is provided with an oval positioning pin to adjust the position of the first support seat.

[0008] A second support seat is movably arranged on the upper side of the workbench and used for supporting the axle box.

[0009] The workbench is connected with a lifting mechanism, and the lifting mechanism can lift the workbench to a set angle.

[0010] As a further implementation, two first support seats are arranged symmetrically along the direction perpendicular to the moving direction of the second support seat, and a positioning node accommodating space is formed between the two support seats.

[0011] As a further implementation, the long axis direction of the oval positioning pin is parallel to the moving direction of the second support seat.

[0012] As a further implementation manner, the first support base is provided with a groove for bearing the positioning node at the top.

[0013] As a further implementation manner, the workbench is arranged on the top of the support frame and is rotationally connected with the support frame.

[0014] As a further implementation manner, the lifting mechanism is arranged on the inner side of the support frame, and the lifting mechanism can drive the workbench to rotate relative to the support frame to lift the mounting end of the first support base on the workbench.

[0015] As a further implementation manner, the clamping assembly is arranged for applying pressure to the gland of the positioning node, and the clamping assembly is connected with the workbench through the fixing plate.

[0016] As a further implementation manner, the clamping assembly comprises a clamping part and a driving part, and the non-working end of the clamping part is fixedly connected with the driving part.

[0017] As a further implementation manner, the working end of the clamping part has a flexible clamping surface.

[0018] As a further implementation manner, the second support base is slidably connected with the slide rail, and the slide rail is fixed on the upper side of the workbench.

[0019] The beneficial effects of the above-mentioned utility model are as follows:

[0020] The first support base and the second support base are both arranged on the workbench, the first support base is used for supporting the positioning node, the second support base is used for supporting the shaft box body, the position of the first support base can be adjusted through the oval positioning pin, so that the spacing of the first support base can adapt to positioning nodes of different specifications, and the device can be adapted to different vehicle models; meanwhile, the second support base can move relative to the workbench, and the shaft box body and the positioning node can be automatically aligned and clamped through cooperation of the clamping assembly; and the workbench can be lifted by a certain angle, and the workbench is lifted after assembly is completed, so that the bending operation of the stop iron is facilitated; thereby, the assembly efficiency and reliability of the positioning node and the shaft box body can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings constituting a part of the specification of the utility model are used to provide further understanding of the utility model, and the illustrative examples of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0022] Figure 1 is the front view of the utility model according to one or more embodiments;

[0023] Figure 2 is the top view of the utility model according to one or more embodiments;

[0024] Figure 3 is a side view according to one or more embodiments of the present application.

[0025] Wherein, 1, support frame, 2, workbench, 3, first support seat, 4, second support seat, 5, fixed plate, 6, drive part, 7, clamping part, 8, groove, 9, oval positioning pin. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0027] Example 1:

[0028] The present embodiment provides a positioning node assembly auxiliary device for the press fitting of a positioning node and an axle box of a bogie of a motor train unit of rail transit vehicles, as shown in Figures 1-3 The support frame 1 is used as the support main body of the entire device, which can be set according to actual requirements on the basis of meeting the strength requirements; in general, the support frame 1 is set as a cuboid frame structure. The workbench 2 is installed on the upper side of the support frame 1, and the first support seat 3 and the second support seat 4 are both arranged on the workbench 2, the first support seat 3 is used for supporting the positioning node, and the second support seat 4 is used for supporting the axle box.

[0029] Specifically, the workbench 2 is a water platform surface, on which the first support seat 3 and the second support seat 4 are installed. In the present embodiment, the length of the workbench 2 is less than the length of the support frame 1, one end of the workbench 2 is installed in alignment with the support frame 1, and the other end is a certain distance away from the edge of the support frame 1; the first support seat 3 is installed at the end of the workbench 2 which has a certain distance from the support frame 1.

[0030] The second support seat 4 can move relative to the workbench 2, and its movable performance is realized by the following mode: two slide rails are installed along the length direction of the workbench 2, the second support seat 4 is slidably connected with the slide rails through a sliding block, and the second support seat 4 can be moved along the slide rails under the action of a driving mechanism. The driving mechanism can be realized by motor driving, hydraulic cylinder driving or other linear driving modes. The axle box is hoisted to the upper side of the second support seat 4, and the position adjustment of the axle box is realized through the movement of the second support seat 4, so as to correspond to the position of the positioning node.

[0031] As shown in Figure 2As shown, there are two first support seats 3, and the two first support seats 3 are arranged along the moving direction perpendicular to the second support seat 4 (along the width direction of the worktable 2). The two first support seats 3 are symmetrically arranged, and the distance between them is adapted to the size of the positioning node, forming a positioning node accommodating space. Figure 1 As shown, the top of the first support 3 is provided with a groove 8, and the positioning node is supported by the grooves 8 of the two first support 3.

[0032] Since the dimensions of positioning nodes vary among different vehicle models, in order to address the issue of needing to adjust the position of the positioning node support due to different positioning node specifications, the first support 3 in this embodiment is equipped with an elliptical positioning pin 9. The elliptical positioning pin 9 is connected to the bottom of the first support 3. The worktable 2 has a through hole for the elliptical positioning pin 9 to pass through, and this through hole is a circular hole. Furthermore, the major axis of the elliptical positioning pin 9 is parallel to the moving direction of the second support 4, and the major axis of the elliptical positioning pin 9 is adapted to the diameter of the through hole. The minor axis of the elliptical positioning pin 9 is perpendicular to the moving direction of the second support 4. Therefore, in the moving direction perpendicular to the second support 4, there is a margin for the fit between the elliptical positioning pin 9 and the through hole, which allows the distance between the two first support 3s to be adjusted according to different positioning node requirements.

[0033] Once the elliptical locating pin 9 is inserted into the through hole and its position is adjusted, it can be fixed by the connector.

[0034] The positioning node assembly auxiliary device in this embodiment also includes a clamping assembly, which is used to apply pressure to the pressure cap of the positioning node and clamp it from the side to ensure that the axle box body is flush with the two sides of the pressure cap, thus minimizing the impact on the rigidity of the positioning node.

[0035] The clamping assembly is connected to the worktable 2 via the fixing plate 5, such as Figure 1 As shown, the fixing plate 5 is perpendicular to the worktable 2, and the clamping assembly is installed on the top of the fixing plate 5. In this embodiment, the clamping assembly includes a drive unit 6 and a clamping unit 7 connected to the drive unit 6. The drive unit 6 provides linear power to drive the clamping unit 7 to clamp the pressure cap in a direction parallel to the worktable 2. The drive unit 6 is installed on one side of the fixing plate 5, and the clamping unit 7 is located on the other side of the fixing plate 5. The drive unit 6 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc.

[0036] The clamping part 7 has a working end on one side facing the first support base 3 and a non-working end on the other side. The working end of the clamping part 7 has a flexible clamping surface, which can ensure that the cover is clamped without damaging it. The shape of the flexible clamping surface is adapted to the shape of the cover.

[0037] In this embodiment, the flexible clamping surface of the clamping part 7 is made of rubber.

[0038] After the positioning node is assembled with the shaft box, the fixing bolt stop is not easy to be bent. Therefore, in this embodiment, the workbench 2 is connected to the lifting mechanism. The lifting mechanism raises the workbench 2 to a set angle, so that the end where the first support seat 3 is located is raised to a certain height, which facilitates the bending operation of the stop.

[0039] like Figure 1 As shown, the workbench 2 has multiple hinge points on both sides to achieve hinge connection with the support frame 1. The lifting mechanism (not shown in the figure) is connected to the lower side of the workbench 2. Under the lifting action of the lifting mechanism, the workbench 2 rotates relative to the support frame 1, so that the mounting end of the first support seat 3 on the workbench 2 is raised at a certain angle.

[0040] The lifting mechanism can be implemented using existing technologies, such as pneumatic cylinders, hydraulic cylinders, and motor-driven linear motion mechanisms, and the specific choice can be made according to actual requirements.

[0041] The working principle of this embodiment is as follows:

[0042] Pre-adjust the distance between the two support seats according to the size of the positioning node, and place the positioning node on the first support seat 3; hoist the axle box body to the second support seat 4, and control the movement of the second support seat 4 through the drive mechanism to bring the axle box body closer to the positioning node; use the clamping assembly to press the pressure cap tightly against the outside of the positioning node, and assemble the positioning node and the axle box body. After assembly, the lifting mechanism raises the worktable 2 at a certain angle to perform a bending operation on the stop iron.

[0043] The positioning node assembly auxiliary device in this embodiment, through the structure of clamping device, worktable 2, elliptical positioning pin 9, etc., can be applied to the assembly of positioning nodes of various EMU models, improving assembly efficiency and reliability.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning node assembly auxiliary device, characterized in that, include: Workbench; A first support base is disposed on the upper side of the workbench and is used to support the positioning node; the first support base is equipped with an elliptical positioning pin to adjust the position of the first support base. The second support is movably mounted on the upper side of the workbench to support the shaft housing; The worktable is connected to a lifting mechanism, which can raise the worktable to a set angle.

2. The positioning node assembly auxiliary device according to claim 1, characterized in that, Two first support seats are symmetrically arranged along the direction of movement perpendicular to the second support seat, and a positioning node accommodating space is formed between the two support seats.

3. A positioning node assembly auxiliary device according to claim 1 or 2, characterized in that, The major axis of the elliptical positioning pin is parallel to the direction of movement of the second support.

4. A positioning node assembly auxiliary device according to claim 1 or 2, characterized in that, The top of the first support base is provided with a groove for supporting the positioning node.

5. The positioning node assembly auxiliary device according to claim 1, characterized in that, It also includes a support frame, with the worktable located on top of the support frame and rotatably connected to it.

6. The positioning node assembly auxiliary device according to claim 5, characterized in that, The lifting mechanism is installed inside the support frame. The lifting mechanism can drive the worktable to rotate relative to the support frame in order to lift the mounting end of the first support seat on the worktable.

7. The positioning node assembly auxiliary device according to claim 1, characterized in that, It also includes a clamping assembly for applying pressure to the cap of the positioning node; the clamping assembly is connected to the worktable via a fixing plate.

8. The positioning node assembly auxiliary device according to claim 7, characterized in that, The clamping assembly includes a clamping part and a driving part, wherein the non-working end of the clamping part is fixedly connected to the driving part.

9. The positioning node assembly auxiliary device according to claim 8, characterized in that, The working end of the clamping part has a flexible clamping surface.

10. The positioning node assembly auxiliary device according to claim 1, characterized in that, The second support is slidably connected to the slide rail, which is fixed to the upper side of the worktable.

Images