A positioning device for friction welding between the middle section of the bridge housing and the shaft head

Abstract

The utility model discloses a positioning device for friction welding between the middle section of the bridge housing and the shaft head, comprising the middle section of the bridge housing and a mounting seat fixed on a welding workbench, the middle section of the bridge housing comprising an annular shell and bridge tubes on both sides connected in an integral manner, the inner edge of a mounting plane on one side of the annular shell is respectively provided with a plurality of notches distributed along its circumference, an annular tray is fixed on the mounting seat, a plurality of positioning blocks distributed along its circumference are respectively fixed on the annular tray, and are clamped one-to-one with the plurality of notches, and are used to support the annular shell from the bottom side, and to position and fix the annular shell. The utility model can support the bridge housing from the bottom side, and can also position and fix the bridge housing, that is, positioning and fixing the bridge housing can be achieved through a positioning component, and there is no need to set up redundant positioning mechanisms and fixtures on the welding workbench, and on the basis of ensuring welding quality, it can simplify the structure, optimize the operation, and achieve rapid positioning and fixing of the bridge housing, which is conducive to improving processing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge housing processing, in particular to a positioning device for friction welding between a middle section of a bridge housing and a shaft head. Background Art

[0002] The axle housing is the assembly base for installing the main reducer, differential, half-axle and wheel. Its main function is to support and protect the main reducer, differential and half-axle, etc. Generally speaking, the axle housing of an ordinary non-disconnecting drive axle is a rigid hollow beam supported on the left and right drive wheels. The main reducer, differential, half-axle and other transmission parts are installed in it. The axle housing is connected to the frame or car body through a longitudinal leaf spring. It is an important part of the drive axle and one of the main components of the running system.

[0003] See also Figure 5 The existing bridge housing mainly includes a bridge housing middle section 4 and two side shaft heads 8, wherein the bridge housing middle section 4 includes an integrally cast annular shell 41 and two side bridge tubes 42, and the two side shaft heads 8 are usually welded by friction welding to achieve fixed connection with the two side bridge tubes 42 respectively.

[0004] At present, in order to ensure the welding quality, it is necessary to set a positioning mechanism and a clamp on the welding workbench. Before welding, the bridge shell is hoisted onto the welding workbench, and the bridge shell is positioned by the positioning mechanism, and then the clamp is operated to clamp the bridge shell; after welding is completed, the clamp is operated to release the clamp of the bridge shell. It can be seen that the above method of setting a positioning mechanism and a clamp on the welding workbench is not only complex in structure, but also cumbersome in operation. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and to provide a positioning device for friction welding between the middle section of the bridge housing and the shaft head. The bridge housing can be positioned and fixed by a positioning component without setting up redundant positioning mechanisms and fixtures on the welding workbench. On the basis of ensuring the welding quality, the structure is simplified, the operation is optimized, and the bridge housing can be quickly positioned and fixed, which is conducive to improving processing efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A positioning device for friction welding between a bridge housing middle section and a shaft head comprises a bridge housing middle section and a mounting seat fixed on a welding workbench, wherein the bridge housing middle section comprises an annular shell and bridge tubes on both sides connected integrally, and an inner edge of a mounting plane on one side of the annular shell is respectively provided with a plurality of notches distributed along its circumference. The invention is characterized in that: an annular tray is fixed on the mounting seat, and a plurality of positioning blocks distributed along its circumference are respectively fixed on the annular tray, which are respectively engaged with the plurality of notches in a one-to-one correspondence, and are used to support the annular shell from the bottom side and to position and fix the annular shell.

[0008] Furthermore, the mounting seat includes a cylindrical base and a column integrally connected to the cylindrical base, and an annular step is provided on the outer wall of the column.

[0009] Furthermore, the annular tray is fixedly mounted on the column, the lower surface of the annular tray abuts against the step surface of the annular step, and the upper surface of the annular tray is provided with a plurality of grooves distributed along its circumference.

[0010] Furthermore, the several positioning blocks are respectively fixedly installed in the several grooves, and each positioning block includes a base block and a stop block integrally connected to the inner side of the base block. The base block protrudes from the upper surface of the annular tray and is used to support the annular shell from the bottom, and the stop block is snap-fitted with the corresponding notch.

[0011] Furthermore, the outer side surface of the stop block is an arc surface matched with the inner edge of the corresponding notch, and the upper end of the outer side surface of the stop block is provided with a slope surface.

[0012] Furthermore, the cylindrical base is provided with a plurality of mounting holes distributed along its circumference and penetrating its upper and lower surfaces, for fixed installation on a welding workbench.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model utilizes the notch provided on the inner edge of the mounting plane on one side of the bridge shell to set a circular tray, and installs a positioning block on the circular tray. When positioning the bridge shell, the positioning block is snap-fitted with the notch in a one-to-one correspondence, which can not only support the bridge shell from the lower side, but also position and fix the bridge shell. That is, the bridge shell can be positioned and fixed by a positioning component, and there is no need to set up extra positioning mechanisms and clamps on the welding workbench. On the basis of ensuring the welding quality, it can simplify the structure, optimize the operation, realize rapid positioning and fixing of the bridge shell, and is conducive to improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the mounting seat in the utility model.

[0017] Figure 3 It is a structural schematic diagram of the circular ring tray in the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the utility model when positioning the bridge housing.

[0019] Figure 5 This is a structural schematic diagram of the bridge housing positioned in the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A positioning device for friction welding between a bridge housing middle section and a shaft head comprises a bridge housing middle section 4 and a mounting seat 1 fixed on a welding workbench, wherein the bridge housing middle section 4 comprises an annular shell 41 and bridge tubes 42 on both sides which are integrally connected, and the inner edge of a mounting plane on one side of the annular shell 41 is respectively provided with four notches 43 distributed along its circumference, a circular tray 2 is fixed on the mounting seat 1, and four positioning blocks 3 distributed along its circumference are respectively fixed on the circular tray 2, which are respectively connected with the four notches 43 in a one-to-one correspondence, and are used for supporting the annular shell 41 from the bottom side, and positioning and fixing the annular shell 41.

[0022] In the utility model, the mounting seat 1 comprises a cylindrical base 11 and a column 12 integrally connected to the cylindrical base 11 , and an annular step 13 is provided on the outer wall of the column 12 .

[0023] In the utility model, the annular tray 2 is fixedly mounted on the column 12, and the lower surface of the annular tray 2 abuts against the step surface of the annular step 13, so as to fix the annular tray 2 on the mounting seat 1, and the upper surface of the annular tray 2 is respectively provided with four grooves 5 distributed along its circumference.

[0024] In the utility model, four positioning blocks 3 are respectively fixedly installed in four grooves 5, so as to fix the four positioning blocks 3 on the annular tray 2. Each positioning block 3 includes a base block 31 and a stop block 32 integrally connected to the inner side of the base block 31. The base block 31 protrudes from the upper surface of the annular tray 2, so as to support the annular shell 41 from the bottom. The stop block 32 is snapped into the corresponding notch 43, so as to position and fix the annular shell 41.

[0025] In the present invention, the outer side surface of the stop block 32 is an arc surface that matches the inner edge of the corresponding notch 43 to achieve reliable positioning. The upper end of the outer side surface of the stop block 32 is provided with a slope surface to facilitate the placement of the bridge housing middle section 4.

[0026] In the utility model, the cylindrical base 11 is provided with a plurality of mounting holes 6 distributed along the circumference thereof and penetrating the upper and lower surfaces thereof. After the bolts 7 are screwed in, the mounting base 1 can be fixedly mounted on the welding workbench.

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] During positioning, the bridge housing middle section 4 is first lifted onto the annular tray 2 by a crane, so that the four positioning blocks 3 are correspondingly engaged with the four notches 43, that is, the four stop blocks 32 are correspondingly engaged with the four notches 43, so as to achieve positioning and fixing of the annular housing 41. At this time, the base block 31 supports the annular housing 41 from the bottom.

[0029] After positioning, friction welding is used to implement welding, so that the shaft heads 8 on both sides can be fixedly connected to the bridge tubes 42 on both sides respectively.

[0030] After welding is completed, the bridge housing is removed from the annular tray 2 by a crane and hoisted to a designated area.

[0031] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0032] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A positioning device for friction welding of axle housing middle section and shaft head, comprising axle housing middle section and a mounting seat fixed on a welding workbench, wherein the axle housing middle section comprises an annular housing and bridge tubes on both sides connected integrally, and the inner edge of a mounting plane on one side of the annular housing is respectively provided with a plurality of notches distributed along the circumference thereof, characterized in that: A circular tray is fixed on the mounting seat, and a plurality of positioning blocks distributed along its circumference are fixed on the circular tray, which are respectively engaged with the plurality of notches in a one-to-one correspondence, and are used to support the circular shell from the bottom side and to position and fix the circular shell.

2. A positioning device for friction welding between axle housing middle section and axle head according to claim 1, characterized in that: The mounting seat comprises a cylindrical base and a column integrally connected to the cylindrical base, and an annular step is arranged on the outer wall of the column.

3. A positioning device for friction welding between axle housing middle section and axle head according to claim 2, characterized in that: The annular tray is fixedly mounted on the column, the lower surface of the annular tray abuts against the step surface of the annular step, and the upper surface of the annular tray is provided with a plurality of grooves distributed along the circumference thereof.

4. A positioning device for friction welding between axle housing middle section and axle head according to claim 3, characterized in that: The several positioning blocks are respectively fixedly installed in the several grooves, and each positioning block includes a base block and a stop block integrally connected to the inner side of the base block. The base block protrudes from the upper surface of the annular tray and is used to support the annular shell from the bottom. The stop block is snap-fitted with the corresponding notch.

5. A positioning device for friction welding between axle housing middle section and axle head according to claim 4, characterized in that: The outer side surface of the stop block is an arc surface matched with the inner edge of the corresponding notch, and the upper end of the outer side surface of the stop block is provided with a slope surface.

6. A positioning device for friction welding between axle housing middle section and axle head according to claim 2, characterized in that: The cylindrical base is provided with a plurality of mounting holes distributed along its circumference and penetrating its upper and lower surfaces, respectively, for being fixedly mounted on a welding workbench.

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