CN102837135A - Process for correcting deformation during assembly and welding of trailer boards - Google Patents

Abstract

The invention discloses a process for correcting deformation during assembly and welding of trailer boards. The process comprises the steps of checking supplied materials and strictly controlling the size accuracy of each part; assembling the boards and controlling clearance during the assembly; welding and correcting, strictly controlling welding conditions and correcting the deformation of the welded boards; and finally, cleaning and polishing: cleaning and polishing the welded places, handling weld defects and ensuring that the roughness Ra of welding bead surfaces is less than or equal to 6.3. The process is novel in design and breaks through the existing manufacturing methods; by standardizing the manufacturing requirements of the parts, summarizing the characteristics of the process deformation, and progressively refining and exploring manners of the correction process, the manufacturing of the boards can be controlled effectively, thereby realizing the smooth installation of the boards after the secondary disassembly.

Description

The correction process of a kind of trailer boxboard assembling and welding deformation

Technical field:

The present invention relates to the trailer manufacturing technology, relate in particular to the correction process of a kind of trailer boxboard assembling and welding deformation.

Background technology:

The semitrailer boxboard of conventional rigid structure, in the actual welding manufacturing process, deflection is bigger; Lack effective production standard and control correcting mode, cause boxboard installation exercise difficulty big, mostly the scene is to install by force; The client is after going back to pull down; Basically all can't carry out secondary installing, thereby give corporate image, bring extremely bad influence.

Summary of the invention:

The purpose of this patent provides the correction process of a kind of trailer boxboard assembling and welding deformation; Realize the standardized production and the validity control of boxboard; Thereby realize the normal mounting of the moulding requirement and the secondary dismounting of boxboard,, improve the quality of products and corporate image to improve market clout.

Technical scheme of the present invention is following:

The correction process of assembling of trailer boxboard and welding deformation is characterized in that, comprises the steps:

(1), supplied materials inspection:

1), the linearity of rectangular tube supplied materials need be controlled at≤2mm;

2), blanking center corrugated sheet size will guarantee linearity need≤1.5mm behind the die mould;

3), rectangular tube angle size guarantees, assembling post gap≤2mm, the overproof need material center processing of backing off;

(2), boxboard assembling:

1), the frame group to the time, guarantee appearance and size, the assembling of cruciform joint place is smooth, and difference in height can not be arranged;

2), the frame group to the time, rectangular tube fit-up gap≤2mm, the overproof need material center processing of backing off;

3), during the assembling of corrugated sheet and frame, gap≤1.5mm, the overproof need material center processing of backing off;

(3), welding and correction:

1), the corrugated sheet welding conditions are: voltage: U=19 ~ 21V; Electric current: I=180 ~ 200A; The leg height is that 2mm gets final product; Speed of welding: 400 ~ 500mm/min;

2), the hinge welding conditions on the boxboard are: voltage: U=21 ~ 23V; Electric current: I=200 ~ 230A; The leg height is that 3mm gets final product; Speed of welding: 350 ~ 400mm/min;

3), the hinge welding manner on the boxboard: according to boxboard length, carry out reversible deformation after, the hinge in the middle of the welding welds the hinge at two ends on the boxboard more earlier, appearance of weld is attractive in appearance, continuous;

4), the hinge of welding on the boxboard, different according to boxboard length, uses different cushion block cooperation oil cylinders to press down and regulates the boxboard deflection;

5), proofread and correct: for hinge place, welding back recessed≤boxboard of 2mm; Use partial correction platform position to proofread and correct; Hinge is placed on the centre of partial correction platform two limited blocks, on position, last top, places one section chock, according to the size of boxboard welding deformation amount; Last top 5mm ~ 10mm proofreaies and correct back frame linearity≤2mm;

(4), cleaning polishing: weld is cleared up polishing, handle weld defect, guarantee roughness Ra≤6.3 on welding bead surface.

Advantage of the present invention is:

The present invention is novel in design, has broken through existing production method, through standardization part requirements of making; Summary process deformation characteristics; Progressively the correction process mode is groped in refinement, thereby controls the making of boxboard effectively, thereby realizes the smooth installation after the dismounting of boxboard secondary.

The specific embodiment:

The correction process of assembling of trailer boxboard and welding deformation comprises the steps:

(1), supplied materials inspection:

1), the linearity of rectangular tube supplied materials need be controlled at≤2mm;

2), blanking center corrugated sheet size will guarantee linearity need≤1.5mm behind the die mould;

3), rectangular tube angle size guarantees, assembling post gap≤2mm, the overproof need material center processing of backing off;

(2), boxboard assembling:

1), the frame group to the time, guarantee appearance and size, the assembling of cruciform joint place is smooth, and difference in height can not be arranged;

2), the frame group to the time, rectangular tube fit-up gap≤2mm, the overproof need material center processing of backing off;

3), during the assembling of corrugated sheet and frame, gap≤1.5mm, the overproof need material center processing of backing off;

(3), welding and correction:

1), the corrugated sheet welding conditions are: voltage: U=19 ~ 21V; Electric current: I=180 ~ 200A; The leg height is that 2mm gets final product; Speed of welding: 400 ~ 500mm/min;

2), the hinge welding conditions on the boxboard are: voltage: U=21 ~ 23V; Electric current: I=200 ~ 230A; The leg height is that 3mm gets final product; Speed of welding: 350 ~ 400mm/min;

3), the hinge welding manner on the boxboard: according to boxboard length, carry out reversible deformation after, the hinge in the middle of the welding welds the hinge at two ends on the boxboard more earlier, appearance of weld is attractive in appearance, continuous;

4), the hinge of welding on the boxboard, different according to boxboard length, uses different cushion block cooperation oil cylinders to press down and regulates the boxboard deflection;

5), proofread and correct: for hinge place, welding back recessed≤boxboard of 2mm; Use partial correction platform position to proofread and correct; Hinge is placed on the centre of partial correction platform two limited blocks, on position, last top, places one section chock, according to the size of boxboard welding deformation amount; Last top 5mm ~ 10mm proofreaies and correct back frame linearity≤2mm;

(4), cleaning polishing: weld is cleared up polishing, handle weld defect, guarantee roughness Ra≤6.3 on welding bead surface.

 

Different according to boxboard length, use different cushion blocks to cooperate oil cylinder to press down and regulate the boxboard deflection,

Concrete parameter such as following table:

Boxboard length	Plate thickness	The backing plate position	Oil cylinder presses down height (H)	Linearity before the adjustment	Adjustment back linearity
						≤1800mm	20mm	In the middle of the boxboard	14~16mm	2~3 mm	≤1.5 mm
≤2300mm	30mm	In the middle of the boxboard	18~20mm	3~4 mm	≤1.6 mm
						≤2600mm	30mm	In the middle of the boxboard	22~24mm	4~5 mm	≤1.8mm
≤2800mm	40mm	In the middle of the boxboard	28~30mm	5~8 mm	≤2.0mm

Hinge place, welding back is recessed≤and the boxboard of 2mm regulates deflection, concrete parameter such as following table:

Boxboard length	Plate thickness	The backing plate position	Heights of roofs on the oil cylinder (H)	Linearity before the adjustment	Adjustment back linearity
						≤1800mm	40mm	The hinge both sides	5~7mm	2~3 mm	≤1.3 mm
≤2300mm	40mm	The hinge both sides	5~8mm	3~4mm	≤1.4 mm
						≤2600mm	40mm	The hinge both sides	6~9mm	4~5mm	≤1.6 mm
≤2800mm	40mm	The hinge both sides	8~10mm	5~8mm	≤2.0mm

Claims (1)

1. the correction process of trailer boxboard assembling and welding deformation is characterized in that, comprises the steps:

(1), supplied materials inspection:

1), the linearity of rectangular tube supplied materials need be controlled at≤2mm;

2), blanking center corrugated sheet size will guarantee linearity need≤1.5mm behind the die mould;

3), rectangular tube angle size guarantees, assembling post gap≤2mm, the overproof need material center processing of backing off;

(2), boxboard assembling:

1), the frame group to the time, guarantee appearance and size, the assembling of cruciform joint place is smooth, and difference in height can not be arranged;

2), the frame group to the time, rectangular tube fit-up gap≤2mm, the overproof need material center processing of backing off;

3), during the assembling of corrugated sheet and frame, gap≤1.5mm, the overproof need material center processing of backing off;

(3), welding and correction:

1), the corrugated sheet welding conditions are: voltage: U=19 ~ 21V; Electric current: I=180 ~ 200A; The leg height is that 2mm gets final product; Speed of welding: 400 ~ 500mm/min;

2), the hinge welding conditions on the boxboard are: voltage: U=21 ~ 23V; Electric current: I=200 ~ 230A; The leg height is that 3mm gets final product; Speed of welding: 350 ~ 400mm/min;

3), the hinge welding manner on the boxboard: according to boxboard length, carry out reversible deformation after, the hinge in the middle of the welding welds the hinge at two ends on the boxboard more earlier, appearance of weld is attractive in appearance, continuous;

4), the hinge of welding on the boxboard, different according to boxboard length, uses different cushion block cooperation oil cylinders to press down and regulates the boxboard deflection;

5), proofread and correct: for hinge place, welding back recessed≤boxboard of 2mm; Use partial correction platform position to proofread and correct; Hinge is placed on the centre of partial correction platform two limited blocks, on position, last top, places one section chock, according to the size of boxboard welding deformation amount; Last top 5mm ~ 10mm proofreaies and correct back frame linearity≤2mm;

(4), cleaning polishing: weld is cleared up polishing, handle weld defect, guarantee roughness Ra≤6.3 on welding bead surface.