Assembly welding method of chassis assembly and assembly welding tooling clamping devices special for same

A clamping device and welding tooling technology, applied in auxiliary devices, manufacturing tools, welding equipment and other directions, can solve the problems of long processing period, high processing cost, deformation of the car body, etc., and achieve the effect of improving work efficiency and saving costs.

Inactive Publication Date: 2011-09-14
HUNAN JIANGLU SPECIAL EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this type of prior art, during the welding process of the vehicle body, the deformation of the vehicle body is serious, and the position deformation of the front and rear axles alone can reach about 15 mm; and the processing period is long, and the positioning of each vehicle body takes about 16 hours. The proc

Method used

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  • Assembly welding method of chassis assembly and assembly welding tooling clamping devices special for same
  • Assembly welding method of chassis assembly and assembly welding tooling clamping devices special for same
  • Assembly welding method of chassis assembly and assembly welding tooling clamping devices special for same

Examples

Experimental program
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Effect test

Example Embodiment

[0016] In Example 1, the specific process steps of the present invention are as follows: In the first step, each bridge hole 2 is cut out on the left and right side decks 1 according to the design requirements. It is best to use water cutting to process each bridge hole to the final size of the drawing design; The axle flange, the rear axle flange and the gearbox bracket are respectively processed in place on the small machine tool according to the drawings, and no machining allowance is reserved, that is, processed to the standard size during assembly, and then the side deck side beams 11 and 11 are welded. Other accessory devices required by the design, and a through hole for positioning is provided on the side beam 11 of the side deck. This through hole should be matched with the positioning hole designed on the clamping device of the welding tooling. At this time, the side deck 1 is completed. The preliminary processing. The second step is to turn the left and right side de...

Example Embodiment

[0020] In Embodiment 2, the present invention can adopt a special welding tooling clamping device, which includes a bottom cross beam 7, a vertical column 6 and an upper cross beam 13 to form a clamping bracket. The two upper sides of the bottom cross beam 7 are respectively symmetrically fixed to the vertical column 6, The upper cross beam 13 is fixed between the two uprights 6, and the support rod 15 can also be fixed between the upright 6 and the upper cross beam 13. The two ends of the bottom beam 7 are provided with positioning screw holes 20 for installing the installation device, and the upper part of the two uprights 6 is provided with a through hole for installing the adjustment device, and the side deck state adjustment mechanism 8 is installed in the upper through hole of the upright 6 The side deck state adjustment mechanism 8 includes a screw hole that is matched and fixedly connected with the upper through hole of the column 6 and a side plate adjusting screw 19, a...

Example Embodiment

[0021] In embodiment 3, the side deck state adjustment mechanism 8 of the present invention can also adopt another structural form, which can be fixedly connected with a screw hole matched with the upper through hole of the column 6, a connecting block bracket 16, a bolt 17, and a positioning connection A block 18 and a side plate adjusting screw 19 are formed, the side plate adjusting screw 19 is sleeved in the screw hole, the front end of the side plate adjusting screw 19 is sleeved with a connecting block bracket 16, and the connecting block bracket 16 and the positioning connecting block 18 are provided with pin holes , The bolt 17 passes through the bolt hole on the connecting block bracket 16 and the positioning connecting block 18 to fit the positioning connecting block 18 in the connecting block bracket 16. At this time, the positioning connecting block 18 can be replaced as required. Refer to Figure 1 to 6 , The remaining example 2.

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Abstract

The invention relates to an assembly welding method of a chassis assembly and an assembly welding tooling clamping devices special for the same, mainly solving the technical problems of complexity and the like of the traditional processing method. The assembly welding method of the chassis assembly comprises the following steps of: cutting bridge openings (2) on left and right side armor plates (1) according to design requirements, and sleeving the left and right side armor plates (1) on two or more than two assembly welding tooling clamping devices in an overturning way; then welding both ends of balancing pole brackets (3) with the bridge openings (2) one by one, and then welding a back beam (12), a bottom armor plate longitudinal beam (10), a front axle ring flange (4), a rear axle ring flange (5) and a speed changing box bracket; overturning the welded left and right side armor plates (1), the balancing pole brackets (3), the back beam (12), the bottom armor plate longitudinal beam (10) and the assembly welding tooling clamping devices already connected into an integer, then welding a head bottom armor plate, and then welding a bottom armor plate (9) so as to complete the welding work of the chassis assembly. The invention can be widely used for the welding construction of the chassis assemblies of various vehicles and armored vehicles especially.

Description

technical field [0001] The invention relates to a welding method for an armored vehicle underframe assembly, and also relates to a fixing and positioning device for the vehicle frame assembly. Background technique [0002] At present, domestic military armored vehicles, including crawler tracks and wheeled car bodies, all adopt a box structure, and the mounting brackets and mounting holes of transmission and walking components are all welded on the car body. Since the transmission and walking system have high requirements on the relative position and dimensional accuracy of each bridge hole, including coaxiality, fit accuracy, verticality, etc., and the large car body will be seriously deformed during welding, so in addition to designing large positioning tooling, each In addition to the preliminary positioning of the bridge holes, corresponding machining allowances must be left for each bridge hole. These machining allowances must be greater than the welding deformation of ...

Claims

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Application Information

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IPC IPC(8): B23K28/02B23K37/053
Inventor 邵支农丁毫光胡新明陈宗贵袁金科
Owner HUNAN JIANGLU SPECIAL EQUIP MFG
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