CN103056571A - Welding method for plate spring mounting casing pipe and positioning tool - Google Patents

Welding method for plate spring mounting casing pipe and positioning tool Download PDF

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Publication number
CN103056571A
CN103056571A CN2011103226218A CN201110322621A CN103056571A CN 103056571 A CN103056571 A CN 103056571A CN 2011103226218 A CN2011103226218 A CN 2011103226218A CN 201110322621 A CN201110322621 A CN 201110322621A CN 103056571 A CN103056571 A CN 103056571A
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CN
China
Prior art keywords
alignment pin
spring mounting
leaf spring
positioning tool
mounting sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011103226218A
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Chinese (zh)
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CN103056571B (en
Inventor
王文侠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beiqi Foton Motor Co Ltd filed Critical Beiqi Foton Motor Co Ltd
Priority to CN201110322621.8A priority Critical patent/CN103056571B/en
Publication of CN103056571A publication Critical patent/CN103056571A/en
Application granted granted Critical
Publication of CN103056571B publication Critical patent/CN103056571B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a welding method for a plate spring mounting casing pipe and a positioning tool. The welding method comprises that an inner plate and an outer plate of a car frame longitudinal beam are fixedly welded, correction is carried out on a car frame longitudinal beam assembly to eliminate welding deformation, and the plate spring mounting casing pipe is fixedly welded on the inner plate. According to the welding method for the plate spring mounting casing pipe and the positioning tool, welding process sequences are changed, the correction and positioning processes are added, and therefore welding dimension precision of the car frame longitudinal beam is improved, and welding deformation is reduced.

Description

The welding method of leaf spring mounting sleeve and positioning tool
Technical field
The present invention relates to auto manufacturing technology, relate in particular to a kind of welding method and positioning tool of leaf spring mounting sleeve.
Background technology
Automobile frame generally comprises crossbeam and longeron, is provided with the leaf spring mounting sleeve on the longeron, and the central siphon that arranges on this sleeve pipe and the leaf spring mutually is socketed and cooperates, with the leaf spring location and installation on longeron.
Longeron is welded by inner panel and outside plate usually, and existing welding method is first the face of cylinder of leaf spring mounting sleeve to be weldingly fixed on the inner panel, inner panel and outside plate is welded and fixed again.
Because weld seam is longer in the inside and outside plate welding process, the sweating heat distortion inevitably can occur, therefore can cause the low defective of positional precision of leaf spring mounting sleeve, affect follow-up leaf spring and install.
Summary of the invention
The invention provides a kind of welding method and positioning tool of leaf spring mounting sleeve, to solve the existing low defective of welding method precision, guarantee welding quality, enhance productivity.
The invention provides a kind of welding method of leaf spring mounting sleeve, wherein, comprising:
Inner panel and the outside plate of longitudinal beam are welded and fixed;
The longitudinal beam assembly is proofreaied and correct, to eliminate welding deformation;
The leaf spring mounting sleeve is socketed on the alignment pin of positioning tool;
Alignment pin is fixedly mounted on the locating piece of positioning tool;
Again leaf spring mounting sleeve and described inner plate welding are fixed.
The present invention also provides a kind of positioning tool, wherein, comprising:
Brace table;
Two locating pieces are fixedly installed on the described brace table symmetrically;
Alignment pin is used for described leaf spring mounting sleeve is socketed the location, and the two ends of described alignment pin are fixedly connected with described locating piece is dismountable.
The welding method of leaf spring mounting sleeve provided by the invention and positioning tool are by the change of welding procedure order, and increase correction and positioning process, have improved the weld size precision of longitudinal beam, have reduced welding deformation.
Description of drawings
The welding method schematic flow sheet of the leaf spring mounting sleeve that Fig. 1 provides for the embodiment of the invention.
The positioning tool structural representation that Fig. 2 provides for the embodiment of the invention.
Reference numeral:
1-leaf spring mounting sleeve; The 2-brace table; The 3-locating piece;
The 4-alignment pin; The secondary alignment pin of 5-.
The specific embodiment
The welding method schematic flow sheet of the leaf spring mounting sleeve that Fig. 1 provides for the embodiment of the invention, the embodiment of the invention provides a kind of welding method of leaf spring mounting sleeve, wherein, comprises the steps:
Step 110, inner panel and the outside plate of longitudinal beam is welded and fixed;
Step 120, the longitudinal beam assembly is proofreaied and correct, to eliminate welding deformation;
Step 130, the leaf spring mounting sleeve is socketed on the alignment pin of positioning tool;
Step 140, alignment pin is fixedly mounted on the locating piece of positioning tool;
Step 150, again leaf spring mounting sleeve and inner plate welding are fixed.
In the present embodiment, because inner panel and outside plate welding capacity are large, cause welding deformation serious, so after the welding of inner panel and outside plate is finished, proofread and correct shaping, by shaping dimensional accuracy is met the requirements, again the leaf spring mounting sleeve is weldingly fixed on the inner panel, because the size of leaf spring mounting sleeve is little, the welding job amount is also accordingly very little, so the micro-strain of this moment can not affect the dimensional accuracy of final workpiece assembly.
The positioning tool structural representation that Fig. 2 provides for the embodiment of the invention, the embodiment of the invention also provides a kind of positioning tool, and as shown in Figure 2, comprising brace table 2, two locating pieces 3 and alignment pin 4, locating piece 3 is fixedly installed on the brace table 2 symmetrically; Alignment pin 4 is used for leaf spring mounting sleeve 1 being socketed the location, the two ends of this alignment pin 4 and locating piece 3 dismountable being fixedly connected with.
Preferably, alignment pin 4 is set to the multidiameter shape, and the taper end axle of this multidiameter shape alignment pin 4 and leaf spring mounting sleeve 1 be the socket location mutually, utilizes stair-stepping end face that the position of leaf spring mounting sleeve 1 is fixed.
Further, the two ends of alignment pin 4 are dismountable respectively to be inserted with secondary alignment pin 5, this pair alignment pin 5 is pegged graft with locating piece 3 and is cooperated, to realize being fixedly connected with of alignment pin 4 and locating piece 3, after welding is finished, after pulling down secondary alignment pin 5, the total member of welding and alignment pin 4 together can be taken off, at last alignment pin 4 be taken out.
The welding method of the leaf spring mounting sleeve that the embodiment of the invention provides has improved the weld size precision of longitudinal beam by the change of welding procedure order, reduced welding deformation.Utilize the alignment pin of positioning tool that the leaf spring mounting sleeve is positioned, improved the weld size precision of leaf spring mounting sleeve.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (4)

1. the welding method of a leaf spring mounting sleeve is characterized in that, comprising:
Inner panel and the outside plate of longitudinal beam are welded and fixed;
The longitudinal beam assembly is proofreaied and correct, to eliminate welding deformation;
Leaf spring mounting sleeve (1) is socketed on the alignment pin (4) of positioning tool;
Alignment pin (4) is fixedly mounted on the locating piece (3) of positioning tool;
Again leaf spring mounting sleeve (1) and described inner plate welding are fixed.
2. a positioning tool that is applied to welding method claimed in claim 1 is characterized in that, comprising:
Brace table (2);
Two locating pieces (3) are fixedly installed on the described brace table (2) symmetrically;
Alignment pin (4) is used for described leaf spring mounting sleeve (1) being socketed the location, the two ends of described alignment pin (4) and dismountable being fixedly connected with of described locating piece (3).
3. positioning tool according to claim 2 is characterized in that, described alignment pin (4) is the multidiameter shape, and the taper end axle of described multidiameter shape alignment pin (4) and described leaf spring mounting sleeve (1) be the socket location mutually.
4. according to claim 2 or 3 described positioning tools, it is characterized in that, the two ends of described alignment pin (4) are dismountable secondary alignment pin (5) that is inserted with respectively, described secondary alignment pin (5) and described locating piece (3) are pegged graft and are cooperated, to realize being fixedly connected with of described alignment pin (4) and described locating piece (3).
CN201110322621.8A 2011-10-21 2011-10-21 Welding method for plate spring mounting casing pipe and positioning tool Active CN103056571B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110322621.8A CN103056571B (en) 2011-10-21 2011-10-21 Welding method for plate spring mounting casing pipe and positioning tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110322621.8A CN103056571B (en) 2011-10-21 2011-10-21 Welding method for plate spring mounting casing pipe and positioning tool

Publications (2)

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CN103056571A true CN103056571A (en) 2013-04-24
CN103056571B CN103056571B (en) 2015-05-20

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108115298A (en) * 2017-12-15 2018-06-05 四川建安工业有限责任公司 For the designing and manufacturing technique of car rear overhang class subframe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1355420A1 (en) * 1985-09-17 1987-11-30 Проектно-Конструкторский Технологический Институт Всесоюзного Промышленного Объединения Союзуглемаша Device for retaining and urging parts
CN2894921Y (en) * 2006-01-24 2007-05-02 庄添财 Upper beam pipe welding clamp
CN101862927A (en) * 2010-06-04 2010-10-20 天津理工大学 Automatic welding machine for automobile main beams
CN201720646U (en) * 2010-06-18 2011-01-26 衡阳风顺车桥有限公司 Spot-welding jig for accessories of single shaft tube on rear axle of automobile chassis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1355420A1 (en) * 1985-09-17 1987-11-30 Проектно-Конструкторский Технологический Институт Всесоюзного Промышленного Объединения Союзуглемаша Device for retaining and urging parts
CN2894921Y (en) * 2006-01-24 2007-05-02 庄添财 Upper beam pipe welding clamp
CN101862927A (en) * 2010-06-04 2010-10-20 天津理工大学 Automatic welding machine for automobile main beams
CN201720646U (en) * 2010-06-18 2011-01-26 衡阳风顺车桥有限公司 Spot-welding jig for accessories of single shaft tube on rear axle of automobile chassis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108115298A (en) * 2017-12-15 2018-06-05 四川建安工业有限责任公司 For the designing and manufacturing technique of car rear overhang class subframe

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