Rear axle assembly welding method and clamping device special for rear axle assembly welding tool

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

Inactive Publication Date: 2014-01-01
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. It takes about 40 hours to process the front and rear axles of the car body, 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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  • Rear axle assembly welding method and clamping device special for rear axle assembly welding tool
  • Rear axle assembly welding method and clamping device special for rear axle assembly welding tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, the first step of the present invention, according to the design requirements, process the rear axle assembly welder's clamping device, and cut out each bridge hole 2 including the front and rear axles and the balance bar bracket 3 on the left and right side decks 1 according to the design requirements, Then weld other attachments required by the design, that is, complete the preliminary processing of the side deck 1; in the second step, turn the left and right side decks 1 up and down according to the design requirements and fix them on the frame assembly welding fixture clamping device 6, and After all the balance bar brackets 3 and the rear beam are welded; the third step is to set the rear axle flange 5 in the rear axle hole, and then set the rear axle welder's clamping device in the rear axle flange 5 And fix it; the fourth step is to weld the rear axle flange 5 on the side deck, and weld the front axle flange 4 and the transmission bracket at the same...

Embodiment 2

[0014] Embodiment 2, the present invention can use a special rear axle assembly welding tool clamping device for processing to further improve work efficiency. It comprises a rear axle positioning shaft 21, a conical rear axle positioning shaft notch 22, a rear axle positioning plate 23 and a gland 25, and the two ends of the rear axle positioning shaft 21 are fixedly connected with a trapezoidal circular frustum with a thick inner end and a thinner outer end. Bridge locating shaft seam 22, the trapezoidal conical rear axle locating disk 23 that cooperates suit outer end thick inner end thin on rear axle locating axle seam 22, gland 25 is installed in the outer end of rear axle locating disk 23. The rear axle positioning shaft 21 can be a round shaft, a square shaft, or a straight shaft of irregular shape. The diameter of the outer end of the rear axle positioning shaft notch 22 is equal to or slightly smaller than the inner diameter of the rear axle positioning disc 23, so th...

Embodiment 3

[0016]Embodiment 3, the present invention also can be provided with the screw hole corresponding to rear axle flange plate 5 screw holes on the outer end circumference of rear axle positioning plate 23, adopt gland fixing screw 26 to connect rear axle positioning plate 23 with rear axle method The blue plate 5 is connected as a whole. Also can be respectively provided with screw hole at the two ends center of rear axle positioning shaft notch 22, be provided with the through hole that cooperates with the two ends screw holes of rear axle notch 22 on gland 25, adopt positioning disc to fix Screw 24 connects gland 25 with rear axle positioning shaft notch 22 as a whole. refer to figure 1 and figure 2 .

[0017] In the present invention, the flange plate of the rear axle is assembled and fixed on the car body by adopting special tooling for the rear axle and then welded, thereby ensuring the size and tolerance of the inner hole of the rear axle and the position and shape accu...

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Abstract

The invention relates to a rear axle assembly welding method and a clamping device special for a rear axle assembly welding tool, and mainly solves the technical problems of complexity, high cost and the like of a rear axle assembly welding processing method. The method comprises the following steps of: processing the clamping device of the rear axle assembly welding tool, a left side deck and a right side deck and vertically turning over; fixedly sleeving on a frame assembly welding tool clamping device according to design requirements; welding all balancing rod supports and a back beam; sleeving a rear axle flange plate in a rear axle hole; sleeving the clamping device of the rear axle assembly welding tool in the rear axle flange plate and fixing the clamping device of the real axle assembly welding tool; welding the rear axle flange plate on the side decks; welding other necessary equipment; turning over the welded frame assembly and the clamping device of the rear axle assembly welding tool; welding a vehicle head bottom deck and a bottom deck; and disassembling the frame assembly and the clamping device of the rear axle assembly welding tool. The rear axle assembly welding method can be widely applied to welding construction of the frame assembly of various vehicles, particularly armored vehicles.

Description

technical field [0001] The invention relates to a welding method for an armored vehicle underframe assembly, in particular to a method for rear axle assembly welding and a special tooling clamping device. 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 def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02B23K37/053
Inventor 肖澄青邵支农丁毫光胡新明陈宗贵吴先中
Owner HUNAN JIANGLU SPECIAL EQUIP MFG
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