A kind of lid of cab of heavy truck assembly
Technical field
The utility model relates to a kind of heavy duty truck, especially a kind of lid of cab of heavy truck assembly.
Background technology
The top cover assembly of heavy duty truck generally is welded by top cover outside plate and roof skeleton.Roof skeleton comprises the blanked part at longeron, crossbeam and position, skylight.After the top cover assembly welding again with the body shell cab body weld together.The shortcoming of this lid of cab assembly is: (1) part is many, causes the accumulated error of welding back product big, and dimensional accuracy of products is restive; (2) welding sequence is many, takes welding processs such as spot welding, CO2 protection weldering, causes the product distortion big in the welding process; (3) top cover assembly adopts spot welding to be connected with body, and solder joint is exposed outside, influences the attractive in appearance of product.Existing in prior technology weak point that Here it is.
Summary of the invention
The technical problems to be solved in the utility model is exactly at the existing in prior technology deficiency, and provides a kind of top cover inner panel integrated lid of cab of heavy truck assembly.
This programme is realized by following technical measures: this lid of cab of heavy truck assembly comprises the top cover outside plate, it also comprises the top cover inner panel of captiveing joint with the top cover outside plate, be integrated with integrated lock piece and longeron on the top cover inner panel, crossbeam comprises two right crossbeams that parallel left crossbeam is parallel with two, longeron comprises the left longeron that is parallel to each other, middle longeron and right vertical beam, between two left crossbeams and two right crossbeams roof window framework integrated with it arranged, the periphery of top cover inner panel has reinforced rib integrated with it.
Above-mentioned top cover inner panel and body shell cab body are bonding, and bonding replacement welding process of the prior art exposes solder joint thereby reduced effectively, have improved presentation quality and the aesthetic property of product.And, the bonding oscillation frequency that improves body shell cab body, because bond area is much larger than the solder joint area, therefore, the intensity of this connection mode is higher.
The side of above-mentioned top cover inner panel is provided with at least three through holes, and the staking nut is installed in the through hole, cooperates with bolt by the staking nut top cover inner panel and body shell cab body are coupled together, to strengthen both Joint strenghts.
Longeron is between the top cover inner panel and roof window framework of a side in above-mentioned.
Left side longeron and right vertical beam run through the top cover inner panel.
Have and both integrated air regulator upper skeleton inner panels between the top cover inner panel of the opposite side relative with above-mentioned middle longeron and the roof window framework.
The periphery of above-mentioned top cover inner panel is connected with strength beam integrated with it by strengthening longeron, strengthens the bulk strength of top cover inner panel by strength beam.
Above-mentioned top cover outside plate and top cover inner panel be fixedly connected as welding.
The beneficial effect of this programme can be learnt according to the narration to such scheme, in this lid of cab of heavy truck assembly, be integrated with integrated lock piece and longeron on the top cover inner panel, crossbeam comprises two right crossbeams that parallel left crossbeam is parallel with two, longeron comprises the left longeron that is parallel to each other, middle longeron and right vertical beam, between two left crossbeams and two right crossbeams roof window framework integrated with it arranged, so just with crossbeam, longeron and roof window blanked part integrate on the top cover inner panel, reduced number of parts, a plurality of blanked parts of the prior art are replaced with a blanked part, thereby reduced number of molds, reduced die manufacturing cost, and this top cover inner panel does not need welding, does not have welding deformation and the accumulation of error, thereby has improved the precision of product.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
Fig. 2 is the structural representation of top cover inner panel.
Fig. 3 is the mounting structure scheme drawing of top cover assembly and body shell cab body.
Among the figure, 1 is the top cover outside plate, and 2 is the top cover inner panel, and 3 is left back longeron, 4 is middle longeron, and 5 is left back crossbeam, and 6 is longeron in the left side, and 7 is left front crossbeam, 8 is left front longeron, and 9 is air regulator upper skeleton inner panel, and 10 is the roof window framework, and 11 is right front longeron, 12 is right front crossbeam, and 13 is longeron in the right side, and 14 is right back crossbeam, and 15 is right back longeron, 16 for strengthening longeron, and 17 is strength beam, and 18 are the staking nut, 19 is bolt, and 20 is bonded adhesives, and 21 is body shell cab body.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
A kind of lid of cab of heavy truck assembly, as shown in Figure 1-Figure 3, it comprises top cover outside plate 1 and captives joint the top cover inner panel 2 of (as spot welding) with it, top cover inner panel 2 is bonding with body shell cab body 21, and the side of top cover inner panel 2 is provided with at least three through holes, staking nut 18 is installed in the through hole, and the periphery of top cover inner panel 2 is connected with strength beam 17 integrated with it by strengthening longeron 16.
Be integrated with integrated lock piece and longeron on the top cover inner panel 2, crossbeam comprises the right crossbeam (right front crossbeam 12 and right back crossbeam 14) that two parallel left crossbeams (left front crossbeam 7 and left back crossbeam 5) are parallel with two, longeron comprises left longeron, middle longeron 4 and the right vertical beam that is parallel to each other, left side longeron and right vertical beam run through top cover inner panel 2, in longeron 4 be positioned at a side of roof window framework 10 and one-body molded with top cover inner panel 2 and roof window framework 10, have and both integrated air regulator upper skeleton inner panels 9 between the top cover inner panel 2 of the opposite side relative with middle longeron 4 and the roof window framework 10.Left side longeron is divided into longeron 6 and left back longeron 3 in left front longeron 8, the left side by left front crossbeam 7 and left back crossbeam 5, right vertical beam is divided into longeron 13 and right back longeron 15 in right front longeron 11, the right side by right front crossbeam 12 and right back crossbeam 14, has between left front crossbeam 7, left back crossbeam 5, right front crossbeam 12 and the right back crossbeam 14 and they integrated roof window frameworks 10.
Crossbeam, vertical dye with the roof window blanked part one-body molded on top cover inner panel 2.The interior trim of top cover and other top cover assembly parts can be realized and the pre-assy of top cover assembly before top cover assembly and body shell cab body 21 are bonding, had so just alleviated operator's labour intensity, had improved production efficiency.After pre-assy is finished, applying position at body shell cab body 21 and top cover inner panel 2 is coated with bonded adhesives 20, by registration device (or robot manipulation) top cover assembly is buckled on the body shell cab body 21 then, top cover assembly and body shell cab body 21 is linked together by staking nut 18 with bolt 19 at last.Top cover inner panel 2 in this top cover assembly does not have welding process, so its precision and intensity are higher.
Can pass through existing techniques in realizing without the technical characterictic of describing in the utility model, not repeat them here.