CN209811577U - Positioning tire for welding large frame - Google Patents
Positioning tire for welding large frame Download PDFInfo
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- CN209811577U CN209811577U CN201920441796.2U CN201920441796U CN209811577U CN 209811577 U CN209811577 U CN 209811577U CN 201920441796 U CN201920441796 U CN 201920441796U CN 209811577 U CN209811577 U CN 209811577U
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Abstract
A positioning tire for welding a large frame comprises a base welding tire I and a positioning detection tire II, wherein the base welding tire I comprises a base I and a positioning support I positioned on the base I; the positioning bracket I is provided with a longitudinal beam positioning assembly, and the longitudinal beam positioning assembly comprises a longitudinal beam front positioning plate arranged at the end part of the positioning bracket I and a longitudinal beam side positioning plate arranged in an inclined manner; still establish crossbeam locating component on the locating support I, crossbeam locating component includes crossbeam axle locating part and crossbeam vertical orientation part, and crossbeam axle locating part is for supporting the axle bed with the activity connecting axle complex. The utility model discloses a two location child combination modes accomplish the assembly welding of large-scale frame, have positioning accuracy height, welding speed advantage fast.
Description
Technical Field
The utility model belongs to the technical field of large-scale vehicle frame welding technique and specifically relates to a large-scale vehicle frame welding is with location child is related to.
Background
Each assembly of the automobile is directly or indirectly arranged on a frame, and the frame is a basic part for bearing load, wherein the load comprises static load of the automobile and dynamic load in running, so that the frame is one of key parts influencing the service life of the automobile.
At present, the domestic cargo truck adopts an edge beam type welded frame, namely, the frame is a closed framework formed by welding two groove-shaped longitudinal beams and a plurality of cross beams. In the welding process, because the number of joints is large, the welding difficulty is high, and the welding strength and the welding precision of a welding line are difficult to guarantee. Therefore, how to design a reasonable welding process and match with a proper welding positioning mould is the key point for ensuring the welding quality of the frame.
The utility model discloses a welding frock and welding method of frame has been given in the utility model patent application of application number 201611065743.2, and its method welds the frame after welding the single longeron earlier, and same welding frock can carry out the fixed-position welding to the single longeron, also can carry out fixed-position welding to the frame, has made things convenient for staff's welding, and the security is high. However, the welding cannot conveniently complete the detection of the welding precision, the welding precision needs to be manually and independently detected, and the welding period is prolonged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming that exists among the prior art, a large-scale frame welding is with combination location child is provided, basic welding child in adopting this combination location child can be fast, high accuracy assembly welding frame main part, adopt the location detection child in this combination location child, can place the frame main part after the assembly welding on this location detection child, not only can directly perceived short-term test weld the precision, still can further assembly welding to frame main part with all the other parts, accomplish the welding process of whole frame, the technical scheme of adoption is: the utility model provides a large-scale frame welding is with location child which characterized in that: the device comprises a basic welding jig I and a positioning detection jig II, wherein the basic welding jig I comprises a base I and a positioning support I positioned on the base I; the positioning bracket I is provided with a longitudinal beam positioning assembly, and the longitudinal beam positioning assembly comprises a longitudinal beam front positioning plate arranged at the end part of the positioning bracket I and a longitudinal beam side positioning plate arranged in an inclined manner; still establish crossbeam locating component on the locating support I, crossbeam locating component includes crossbeam axle locating part and crossbeam vertical location part, crossbeam axle locating part is the support axle bed with the activity connecting axle complex.
The structure of the positioning detection tire II comprises: the positioning detection tire II comprises a base II and a positioning support II positioned on the base II; establish on the locating support II and accomplish the back landing leg hole positioning seat of back landing leg hole location with the cooperation of frame back landing leg, still include locating plate under the back landing leg, be the definite value X that meets the requirements between back landing leg hole positioning seat center and the locating plate center under the back landing leg. And as the key size during positioning, the value between the center of the rear lug hole positioning seat and the center of the rear leg lower positioning plate is a fixed value Y.
In order to realize the assembly welding of the front supporting legs, the positioning detection tire II further comprises a front supporting leg positioning component matched with the front supporting legs of the frame, the front supporting leg positioning component comprises a front supporting leg hole positioning shaft seat and a front supporting leg lower positioning plate arranged on the shaft seat.
For realizing the assembly welding of frame front end, location detects child II still includes with frame anterior segment complex preceding locating component, preceding locating component still includes with frame anterior segment lateral part complex anterior segment side locating component including setting up at II front portions of locating support, with frame anterior segment tip complex anterior segment preceding locating component.
The concrete structure that the swing arm supports the locating part does: the foundation welding tire I further comprises a swing arm supporting and positioning component which is a rotating arm, one end of the rotating arm is hinged to a hole of the swing arm supporting component of the frame, and the other end of the rotating arm is hinged to a cross beam hole.
The beneficial effects of the utility model reside in that: the utility model adopts the combination mode of two positioning tires to complete the assembly welding of the large frame, and has the advantages of high positioning precision and high welding speed; welding work is finished in the clamping fixture, so that the welding deformation is effectively reduced, and the welding precision is improved; the welding method provided by the welding tire is adopted to complete the welding of the frame of the large-sized vehicle, the frame with the total length close to 17 meters is taken as an example, the precision error of the bridge line is controlled within 2mm, the length error is controlled within 10mm, and the welding precision completely meets the design requirements of drawings.
Drawings
FIG. 1 is a schematic structural diagram of a basic welding tire I of the present invention, FIG. 2 is a view A-A of FIG. 1, FIG. 3 is a view B of FIG. 2, FIG. 4 is a front view of a positioning detection tire II, FIG. 5 is a top view of FIG. 4, and FIG. 6 is a schematic structural diagram of front leg positioning.
1 is a basic welding tire I, 11 is a base I, 12 is a positioning bracket I, 13 is a longitudinal beam positioning component, 131 is a longitudinal beam front positioning plate, 132 is a longitudinal beam side positioning plate, 133 is a longitudinal beam upper positioning plate, 14 is a cross beam positioning component, 141 is a cross beam shaft positioning component, 142 is a cross beam longitudinal positioning component, 143 is a swing arm supporting positioning component, 144 is a cross beam support lug hole shaft, and 145 is a swing arm supporting component upper hole shaft;
2, a positioning detection tire II, 21, a base II, 22, a rear lug hole positioning seat, 23, a rear leg lower positioning plate, 24, a frame upper positioning component, 25, a frame side positioning component, 26, a front section front positioning component, 27, a front section side positioning component, 28, a positioning support II, 29, a bridge wire side positioning datum plane, 210, a front leg hole positioning support, 211, a front leg lower positioning plate and 212, a front section upper positioning component;
reference numeral 3 denotes a frame, 31 denotes a side member, 32 denotes a cross member, 321 denotes a cross member lug hole, 33 denotes a bridge line, 331 denotes a bridge line, 34 denotes a rear leg, 35 denotes a front leg, 36 denotes a frame front section, 37 denotes a swing arm support member, and 38 denotes a cross member.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The utility model discloses a positioning tire for welding a large frame, which is a combined tire, namely comprises a basic welding tire I1 and a positioning detection tire II 2, wherein the basic welding tire I1 is used for assembling a longitudinal beam 31, a cross beam 32, a swing arm supporting part 37 and a cross brace part 38, and the positioning detection tire II 2 has the function; 1) visually detecting whether the precision of key parts of the frame body assembled and formed by the basic welding tire I1 meets the requirement or not, and repairing unqualified welding seams by means of a position detection tire II 2; 2) and further assembling and welding parts such as the rear support leg 34, the front support leg 35, the frame front section 36 and the like on the frame main body to complete frame welding.
Basic welding child I1 includes base I11 and the locating support I12 that is located base I11, establishes longeron locating component 13 on locating support I12, and longeron 31 is two parallel longerons on the frame, establishes parts such as crossbeam 32, stull part 38 between two parallel longerons 31, and the cross section of longitudinal beam 31 (see fig. 2) is for the approximate trapezoidal form that the mouth is big, the end opening is little after the assembly welding, and the medial surface and the vertical direction contained angle of longitudinal beam 31 are 9 degrees.
In order to realize the quick positioning and assembly welding of the longitudinal beam, the longitudinal beam positioning assembly 13 comprises a longitudinal beam front positioning plate 131 and a longitudinal beam upper positioning plate 133 which are arranged at the end parts of the positioning brackets I12, and further comprises a longitudinal beam side positioning plate 132 which is obliquely arranged. During the use, support two longerons 31 respectively and accomplish preceding location by leaning on the longeron front positioning plate 131 of respective front end, the tip upper surface of longeron 31 supports and accomplishes the end and fix a position by leaning on the lower locating surface of longeron top positioning plate 133, supports and accomplishes longeron side location on the slope locating surface of longeron side positioning plate 132 (the slope locating surface is a continuous inclined plane in this embodiment, and effective length slightly is less than longeron length). The longitudinal beam is comprehensively positioned by means of upper positioning, front positioning and side positioning so as to meet the requirement of positioning accuracy.
In order to realize the assembly and welding of the cross beam 32, the positioning bracket i 12 is further provided with a cross beam positioning assembly 14 and a cross beam swing arm positioning bracket 143 designed for the cross beam positioning assembly 14, the cross beam positioning assembly 14 comprises a cross beam shaft positioning part 141 and a cross beam longitudinal positioning part 142 (namely a supporting shaft seat), and the shaft positioning mode is that a movable connecting shaft penetrates through the cross shaft positioning part 141 and a hole corresponding to the cross beam matched with the movable connecting shaft, so as to ensure the coaxiality of the two. In this embodiment, the beam longitudinal positioning part 142 is integrated on the transverse axis positioning part 141 at the same time. With reference to fig. 1, the inner side surface of one side of the supporting shaft seat is used as a longitudinal positioning surface of the cross beam, and the longitudinal positioning surface of the cross beam is flush with the inner side surface, that is, the longitudinal positioning surface of the cross beam 32 is matched with the inner side surface to complete the rapid longitudinal positioning of the cross beam.
For the swing arm support part 37 of tack welding crossbeam 32 lateral part, this location child I1 still is furnished with swing arm support positioning part 143, and swing arm support positioning part is a swing arm, and the upper end of swing arm penetrates in crossbeam props the trunnion 144 through crossbeam props the lug hole 321, and the lower extreme penetrates in swing arm support part upper hole through swing arm support part upper hole axle 145, and after crossbeam 32 welding was accomplished, cross beam props the trunnion 144 in crossbeam props the lug hole 321 to realize crossbeam 32 to the axle location of swing arm support part 37.
The positioning detection tire II 2 comprises a base II 21 and a positioning support II 28 positioned on the base II. The positioning detection tire II 2 is used for hoisting the frame main body from the basic welding tire I1 to the positioning detection tire II 2 after the frame main body is assembled, and precision rapid detection and welding of other parts are completed by means of the detection tire.
For the location detection and the completion welding of the back landing leg 34 of preassembleing, establish back landing leg hole positioning seat 22 on locating support II 28, this back landing leg hole positioning seat 22 realizes the axle location of back landing leg 34, and the locate mode is for penetrating the axle in back landing leg hole positioning seat 22 and the back landing leg ear hole that corresponds to detect the axiality between them. Meanwhile, a rear supporting leg lower positioning plate 23 is further arranged on the positioning detection tire II 2, and the lower positioning precision of the rear supporting leg 34 is detected when shaft positioning is carried out. The rear leg hole positioning device is matched with the frame rear leg 34 to complete rear leg hole positioning and further comprises a rear leg lower positioning plate 23, and the value between the center of the rear leg hole positioning seat 22 and the rear leg lower positioning plate 23 is a fixed value X meeting the requirement. To determine the X value, a positioning base hole (generally a blind hole machined in the surface of the positioning plate) is machined in the lower positioning plate of the rear leg. By observing the distance between the positioning base hole and the hole on the rear leg 34, it can be inferred whether the machining precision meets the requirements. In addition, the value between the center of the rear lug hole positioning seat 22 and the center of the rear leg lower positioning plate 23 is required to be a fixed value Y.
The positioning detection tire II 2 further comprises a front supporting leg positioning component matched with the frame front supporting leg 35, wherein the front supporting leg positioning component comprises a front supporting leg hole positioning shaft seat 210 and a front supporting leg lower positioning plate 211 arranged on the shaft seat 210. A front leg positioning base hole is further formed in the front leg lower positioning plate 211, and the accuracy of the front leg axis position is determined through the base hole.
The positioning detection tire II 2 further comprises a front positioning component matched with the front section of the frame, the front positioning component comprises a front section front positioning component 26 arranged at the front part of the positioning support II 28 and matched with the end part of the front section 36 of the frame, a front end side positioning component 27 matched with the side part of the front section 36 of the frame and a front section upper positioning component 212. The front positioning part 26, the side positioning part 27 and the upper positioning part 212 are matched to accurately position the front section position.
In this embodiment, the frame includes a total of 5 axle beams.
The utility model provides a process method accomplishes the assembly welding of frame main part earlier with the help of basic welding child I, borrows the welding deformation volume of II 2 inspection frame main parts of location detection child again behind pre-installation back landing leg 34 to the welding of all the other parts.
Wherein adopt basic welding child I1 to carry out the assembly welding process steps of frame main part and include:
11) the two longitudinal beams 31 are respectively placed on the positioning bracket I12, and corresponding different surfaces of the longitudinal beams 31 are respectively abutted against positioning surfaces of a longitudinal beam front positioning plate 131, a longitudinal beam side positioning plate 132 and a longitudinal beam upper positioning plate 133 so as to complete front positioning, side positioning and upper positioning of the longitudinal beams;
12) after the cross beam 32 is axially and longitudinally positioned by the cross beam positioning assembly 14, different cross beams are sequentially welded on the longitudinal beam;
13) the swing arm supporting and positioning part 143 is supported by the swing arm, the swing arm supporting part 37 is positioned by taking the hole on the beam and the end surface of the hole as a reference, and the swing arm supporting and positioning part 143 is removed after positioning;
14) the cross brace member 38 is welded between the two side rails to form a preliminarily formed frame.
The process steps of the frame realized by the positioning detection tire II 2 comprise:
21) hoisting the frame into a positioning detection tire II 2;
22) adjusting the position of the frame in the positioning detection tire II 2 by means of a frame upper positioning part 24 and a frame side positioning part 25, simultaneously checking the welding deformation of the basic welding tire I1, checking the part which does not meet the welding precision requirement, splitting the welding line again, welding again after welding correction until the welding precision requirement of the frame is met;
23) the preassembled rear support leg 34 is positioned through the rear support leg hole positioning seat 22 and the rear support leg lower positioning plate 23, and the rear support leg 34 is welded after the positioning is finished;
24) positioning the front leg 35 through the front leg lower positioning plate 211 and the front leg hole positioning support 210, and then assembling and welding the front leg 35;
25) positioning the front section by the front section front positioning part 26, the front section upper positioning part 212 and the front section side positioning part 27, and performing assembly welding of the front section 36 after positioning;
26) welding other accessories on the frame;
27) and (5) hoisting the welded frame out of the positioning detection tire II 2, and finishing the welding of the frame.
In the step 22), the welding correction comprises a correction process of welding deformation, which is to apply an external force F with proper magnitude at the deformed welding seam according to the welding deformation to enable the welding seam to generate reverse deformation, then to throw the welding seam away and weld again under the action of the external force F, finally to remove the external force F, to cool the welding seam, and to finish the one-time welding deformation correction. The repair of the deformed welding line can be rapidly and accurately finished by adopting the correction process.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a large-scale frame welding is with location child which characterized in that: the device comprises a basic welding jig I and a positioning detection jig II, wherein the basic welding jig I comprises a base I and a positioning support I positioned on the base I; the positioning bracket I is provided with a longitudinal beam positioning assembly, and the longitudinal beam positioning assembly comprises a longitudinal beam front positioning plate arranged at the end part of the positioning bracket I and a longitudinal beam side positioning plate arranged in an inclined manner; still establish crossbeam locating component on the locating support I, crossbeam locating component includes crossbeam axle locating part and crossbeam vertical location part, crossbeam axle locating part is the support axle bed with the activity connecting axle complex.
2. The positioning tire for welding according to claim 1, wherein: the positioning detection tire II comprises a base II and a positioning support II positioned on the base II; establish on the locating support II and accomplish the back landing leg hole positioning seat of back landing leg hole location with the cooperation of frame back landing leg, still include locating plate under the back landing leg, be the definite value X that meets the requirements between back landing leg hole positioning seat center and the locating plate center under the back landing leg.
3. The positioning tire for welding according to claim 2, wherein: and the value between the center of the rear lug hole positioning seat and the center of the rear leg lower positioning plate is a fixed value Y.
4. The positioning tire for welding according to claim 2, wherein: the positioning detection tire II further comprises a front supporting leg positioning component matched with the front supporting leg of the frame, wherein the front supporting leg positioning component comprises a front supporting leg hole positioning shaft seat and a front supporting leg lower positioning plate arranged on the shaft seat.
5. The positioning tire for welding according to claim 2, wherein: the positioning detection tire II further comprises a front positioning component matched with the front section of the frame, and the front positioning component comprises a front positioning component arranged at the front part of the positioning support II and matched with the end part of the front section of the frame and a front section side positioning component matched with the side part of the front section of the frame.
6. The positioning tire for welding according to claim 1, wherein: the foundation welding tire I further comprises a swing arm supporting and positioning component which is a rotating arm, one end of the rotating arm is hinged to a hole of the swing arm supporting component of the frame, and the other end of the rotating arm is hinged to a cross beam hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441796.2U CN209811577U (en) | 2019-04-03 | 2019-04-03 | Positioning tire for welding large frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441796.2U CN209811577U (en) | 2019-04-03 | 2019-04-03 | Positioning tire for welding large frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209811577U true CN209811577U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920441796.2U Active CN209811577U (en) | 2019-04-03 | 2019-04-03 | Positioning tire for welding large frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209811577U (en) |
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2019
- 2019-04-03 CN CN201920441796.2U patent/CN209811577U/en active Active
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