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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 processing of the front and rear axles of the car body takes about 40 hours, and it must be completed on a large-scale CNC machine tool; the processing cost is also quite expensive. The car body positioning platform costs about 400,000 yuan, and the cost of each front and rear axle machine tool also reaches 28,000 yuan.

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

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Experimental program
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Effect test

Embodiment 1

[0016] Embodiment 1, the specific process steps of the present invention are as follows: the first step, cut out each bridge hole 2 on the left and right side decks 1 according to the design requirements, preferably adopt the water cutting method 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, they are processed to the standard size during assembly, and then the side deck side beams 11 and 11 are welded. Other attachments required by the design, and a through hole for positioning is provided on the side deck side beam 11. This through hole should be matched with the positioning hole designed on the clamping device of the welding tool. At this time, the side deck 1 is completed. preliminary processing. In the second step, the left and right side decks 1 are tur...

Embodiment 2

[0020]Embodiment 2, the present invention can adopt a kind of special-purpose assembly welding fixture clamping device, and it comprises bottom beam 7, column 6 and upper beam 13 to form clamping support, and column 6 is affixed symmetrically respectively on both sides of bottom beam 7 top, The upper beam 13 is affixed between the two columns 6, and the support rod 15 can also be affixed between the column 6 and the upper beam 13. Positioning screw holes 20 for installing the installation device are respectively provided at both ends of the bottom beam 7, and through holes for installing the adjustment device are provided on the upper parts of the two uprights 6, and the side deck state adjustment mechanism 8 is set in the through holes on the upper parts of the uprights 6. , the side deck state adjustment mechanism 8 includes a screw hole and a side plate adjusting screw 19 that are fixedly connected with the through hole on the upper part of the column 6, and the side plate a...

Embodiment 3

[0021] Embodiment 3, the side deck state adjustment mechanism 8 of the present invention can also adopt another kind of structural form, and it can be connected by the screw hole that cooperates with the through hole on the upper part of the column 6, the connecting block bracket 16, the bolt 17, and the positioning connection. Block 18 and side plate adjusting screw rod 19 etc. are formed, and side plate adjusting screw rod 19 is sleeved in the screw hole, and the front end of side plate adjusting screw rod 19 is sleeved connecting block bracket 16, and connecting block bracket 16 and 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 set the positioning connecting block 18 in the connecting block bracket 16, and at this moment, the positioning connecting block 18 can be replaced as required. refer to Figures 1 to 6 , the rest of 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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