阅读说明：本技术 一种消除焊接变形对口部孔径影响的工装与方法 (Tool and method for eliminating influence of welding deformation on aperture of opening ) 是由 林芝宇 杨建明 安兆方 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种消除焊接变形对口部孔径影响的工装与方法,针对现有技术中存在的由于油封孔口部壁厚≤2mm,稳定杆支架的焊道沿贮油筒圆周方向焊接,焊接后引起油封孔严重变形,并且弹簧盘采用压装方式,弹簧盘不稳固有可能出现松动,且胀包处贮油筒有开裂的问题,本发明包括焊接工装和矫形工装,所述焊接工装包括底座和固定架,所述固定架竖直设置在底座的中心,所述固定架上设置有定位盘,用于定位弹簧盘便于进行焊接,弹簧盘焊接完成后通过矫形工装对油封孔进行矫形,其目的为：将压装弹簧盘改为焊接弹簧盘,巧妙运用焊接弹簧盘的焊接变形来消除焊接稳定杆支架焊接变形对贮油筒油封孔的影响,规避了贮油筒胀包开裂和弹簧盘压装松动的风险。(The invention discloses a tool and a method for eliminating the influence of welding deformation on the aperture of an opening, aiming at the problems that in the prior art, as the wall thickness of the opening of an oil seal is less than or equal to 2mm, the welding bead of a stabilizer bar bracket is welded along the circumferential direction of an oil storage cylinder, the oil seal hole is seriously deformed after welding, and the spring disc is pressed and installed, the spring disc is unstable and is likely to loosen, and the oil storage cylinder at an expansion package position is cracked, the tool comprises a welding tool and a shape correcting tool, wherein the welding tool comprises a base and a fixing frame, the fixing frame is vertically arranged at the center of the base, a positioning disc is arranged on the fixing frame and used for positioning the spring disc to facilitate welding, and the oil seal hole is corrected through the shape correcting tool after the welding of the spring disc is finished, and the purpose is as follows: the press-fitting spring disc is changed into the welding spring disc, the welding deformation of the welding spring disc is ingeniously utilized to eliminate the influence of the welding deformation of the welding stabilizer bar support on the oil hole sealing of the oil storage cylinder, and the risks of expansion package cracking of the oil storage cylinder and press-fitting looseness of the spring disc are avoided.)

1. The utility model provides an eliminate frock of welding deformation to influence of mouth portion aperture which characterized in that, includes welding frock and orthopedic frock, the welding frock includes base and mount, the vertical setting of mount is at the center of base, be provided with the positioning disk on the mount for the location spring dish is convenient for weld, and the spring dish welds the back and corrects to the oil blanket hole through orthopedic frock.

2. The tool for eliminating the influence of welding deformation on the aperture of the mouth part as claimed in claim 1, wherein a bolt hole is formed in the positioning disc, and the spring disc is fixed through a spring disc bolt.

3. The tool for eliminating the influence of welding deformation on the aperture of the mouth part as claimed in claim 1, wherein a stabilizer bar support plug pin is arranged on the fixing frame and used for fixing the stabilizer bar support.

4. The tool for eliminating the influence of welding deformation on the aperture of the mouth part according to claim 1, wherein the shape correcting tool comprises a shape correcting table, a placing plate for placing the oil storage cylinder is arranged in the middle of the shape correcting table, and a circular hole for shape correction is arranged in the center of the top of the shape correcting table.

5. The tool for eliminating the influence of welding deformation on the aperture of the mouth part according to claim 4, wherein the shape correcting tool is further provided with a shape correcting column, the shape correcting column is located right above the round hole, the cross-sectional diameter of the shape correcting column is smaller than that of the round hole, and a hydraulic cylinder is connected to the other end of the shape correcting column.

6. The tool for eliminating the influence of welding deformation on the aperture of the mouth part as claimed in claim 4, wherein a bottom plate is connected to the bottom of the orthopedic table, and the orthopedic table is flexibly connected with the bottom plate.

7. The tooling for eliminating the influence of welding deformation on the aperture of the mouth part of claim 6, wherein the bottom of the orthopedic table is provided with a plurality of positioning grooves, and the positioning grooves are used for moving the position of the orthopedic table on the bottom plate.

8. A method for eliminating the influence of welding deformation on the aperture of a mouth part is characterized by comprising the welding tool and the shape righting tool according to any one of claims 1 to 7, and comprises the following specific steps: the method comprises the steps of placing an oil seal hole of an oil storage cylinder on a welding tool upwards, fixing a stabilizer bar support through a stabilizer bar support bolt, ensuring the relative position of the stabilizer bar support and a spring disc, then positioning the spiral lift and the circumferential direction of the spring disc through a positioning disc, taking the welding bead middle point of the stabilizer bar support as a reference point, taking the symmetrical point of the reference point on the oil storage cylinder wall relative to the axis of the oil storage cylinder as a welding arc starting point of the spring disc, enabling a welding head to do circumferential motion along the welding arc starting point, welding the spring disc to the oil storage cylinder, and after welding is completed, correcting the oil seal hole through a correction tool.

9. The method for eliminating the influence of welding deformation on the aperture of the mouth part of claim 8, wherein after the spring disc is positioned by the welding tool through the positioning disc, the spring disc is fixed through a spring disc bolt, and then the spring disc is welded.

10. The method for eliminating the influence of welding deformation on the aperture of the mouth part of claim 8, wherein the correcting tool corrects the oil sealing hole by extending a cylindrical correcting column into the oil sealing hole.

Technical Field

The invention belongs to the technical field of finished automobile assembly, and particularly relates to a tool and a method for eliminating the influence of welding deformation on the aperture of an opening.

Background

Along with the progress and development of the times, the requirements of various automobile manufacturers on the automatic assembly of the whole automobile are improved, and the requirements on the quality of various parts are improved, so that the requirements on the stability and the size of the shock absorber are more strict; the oil reservoir assembly is one of the components of the shock absorber strut assembly, and the structure of the oil reservoir assembly is diversified with the diversification of the structure of the shock absorber.

In the prior art, the distance of a welding bead of the stabilizer bar support close to an opening of an oil seal hole is required to be less than or equal to 100mm, the spring disc adopts a press-fitting mode, firstly, knurling and expanding package are carried out on the oil storage cylinder, and then, the spring disc is pressed on the oil storage cylinder.

The prior art has the following problems:

because the wall thickness of the opening part of the oil seal is less than or equal to 2mm, the welding bead of the stabilizer bar support is welded along the circumferential direction of the oil storage cylinder, the oil seal hole is seriously deformed after welding, and the spring disc adopts a press-fitting mode, so that the spring disc is unstable and is likely to become loose, and the oil storage cylinder at the expansion package part has the hidden trouble of cracking.

Disclosure of Invention

The invention provides a tool and a method for eliminating the influence of welding deformation on the aperture of an aperture, aiming at the problems that in the prior art, as the wall thickness of the aperture of an oil seal is less than or equal to 2mm, the welding bead of a stabilizer bar support is welded along the circumferential direction of an oil storage cylinder, the oil seal aperture is seriously deformed after welding, and a spring disc is unstable and is likely to become loose by adopting a press-fitting mode, and the oil storage cylinder at the expansion part has the hidden trouble of cracking, the tool and the method provided by the invention have the following aims: the press-fitting spring disc is changed into the welding spring disc, the welding deformation of the welding spring disc is ingeniously utilized to eliminate the influence of the welding deformation of the welding stabilizer bar support on the oil hole sealing of the oil storage cylinder, and the risks of expansion package cracking of the oil storage cylinder and press-fitting looseness of the spring disc are avoided.

In order to achieve the purpose, the invention adopts the technical scheme that: the tool and the method for eliminating the influence of welding deformation on the aperture of the opening comprise a welding tool and a shape correcting tool, wherein the welding tool comprises a base and a fixing frame, the fixing frame is vertically arranged at the center of the base, a positioning disc is arranged on the fixing frame and used for positioning a spring disc to facilitate welding, and the oil seal hole is corrected through the shape correcting tool after the welding of the spring disc is completed.

Preferably, the positioning disc is provided with a bolt hole, and the spring disc is fixed through the spring disc bolt.

Preferably, the fixing frame is provided with a stabilizer bar support bolt for fixing the stabilizer bar support.

Preferably, the shape correcting tool comprises a shape correcting table, a placing plate for placing the oil storage cylinder is arranged in the middle of the shape correcting table, and a round hole for correcting is formed in the center of the top of the shape correcting table.

Preferably, the shape correcting tool further comprises a shape correcting column, the shape correcting column is located right above the round hole, the diameter of the cross section of the shape correcting column is smaller than that of the round hole, and the other end of the shape correcting column is connected with a hydraulic cylinder.

Preferably, the bottom of the orthopedic table is connected with a bottom plate, and the orthopedic table is flexibly connected with the bottom plate.

Preferably, the bottom of the orthopedic table of the present invention is provided with a plurality of positioning grooves for moving the position of the orthopedic table on the base plate.

Preferably, the invention also comprises a method for eliminating the influence of welding deformation on the aperture of the mouth part, which comprises the following specific steps: the method comprises the steps of placing an oil seal hole of an oil storage cylinder on a welding tool upwards, fixing a stabilizer bar support through a stabilizer bar support bolt, ensuring the relative position of the stabilizer bar support and a spring disc, then positioning the spiral lift and the circumferential direction of the spring disc through a positioning disc, taking the welding bead middle point of the stabilizer bar support as a reference point, taking the symmetrical point of the reference point on the oil storage cylinder wall relative to the axis of the oil storage cylinder as a welding arc starting point of the spring disc, enabling a welding head to do circumferential motion along the welding arc starting point, welding the spring disc to the oil storage cylinder, and after welding is completed, correcting the oil seal hole through a correction tool.

Preferably, the welding tool fixes the spring disc through the spring disc bolt after positioning the spring disc through the positioning disc, and then welds the spring disc.

Preferably, the correcting tool provided by the invention can be used for correcting the oil seal hole by extending the cylindrical correcting column into the oil seal hole.

Compared with the prior art, the technical scheme of the invention has the following advantages/beneficial effects:

1. according to the invention, the press-fitting spring disc is designed as the welding spring disc, so that the risk of loosening the spring disc and the risk of cracking of an oil storage cylinder expansion package are eliminated, and the welding deformation of the welding spring disc and the welding deformation of the welding stabilizer bar support are neutralized by using the welding deformation of the welding spring disc, so that the product quality and smooth production are ensured.

2. The oil seal hole is corrected by the correcting device, so that the product delivery quality is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a welding tool in embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of an orthotic station according to embodiment 1 of the present invention.

Fig. 3 is a schematic cross-sectional view of the orthopedic table tip of fig. 2.

Fig. 4 is a schematic cross-sectional view of the bottom of the orthopedic table of fig. 2.

Fig. 5 is a schematic view of the overall welding structure of the present invention.

Fig. 6 is a schematic cross-sectional view of fig. 5.

The labels in the figure are respectively: 1. a base; 101. a fixed mount; 2. positioning a plate; 3. a spring holder latch; 4. an orthopedic table; 5. a circular hole; 6. positioning a groove; 7. a spring holder; 701. welding an arc starting point; 8. a stabilizer bar support; 801. welding a bead; 802. a reference point; 9. an oil storage cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

Example 1:

as shown in the figure, the tool and the method for eliminating the influence of welding deformation on the aperture of the mouth part comprise a welding tool and a shape righting tool, wherein the welding tool comprises a base 1 and a fixing frame 101, the fixing frame 101 is vertically arranged in the center of the base 1, and a stabilizer bar support 8 bolt is arranged on the fixing frame 101 and used for fixing a stabilizer bar support 8. Be provided with positioning disk 2 on mount 101 for the welding is convenient for to location spring dish 7, be provided with the bolt hole on positioning disk 2, fix spring dish 7 through spring dish bolt 3. And after the welding of the spring disc 7 is finished, the oil seal hole is corrected through a correction tool.

The shape correcting tool comprises a shape correcting table 4, wherein a placing plate for placing an oil storage cylinder 9 is arranged in the middle of the shape correcting table 4, and a round hole 5 for correcting the shape is formed in the center of the top of the shape correcting table 4. The shape correcting tool is further provided with a shape correcting column, the shape correcting column is located right above the round hole 5, the diameter of the cross section of the shape correcting column is smaller than that of the round hole 5, and the other end of the shape correcting column is connected with a hydraulic cylinder. The bottom of the orthopedic table 4 is connected with a bottom plate, and the orthopedic table 4 is flexibly connected with the bottom plate. The bottom of the orthopedic table 4 is provided with a plurality of positioning slots 6, and the positioning slots 6 are used for moving the position of the orthopedic table 4 on the bottom plate.

The invention also comprises a method for eliminating the influence of welding deformation on the aperture of the mouth part, which comprises the following specific steps: the oil seal hole of the oil storage cylinder 9 is placed on a welding tool upwards, the stabilizer bar support 8 is fixed through a stabilizer bar support bolt, the relative position of the stabilizer bar support 8 and the spring disc 7 is guaranteed, then the spiral lift and the circumferential direction of the spring disc 7 are positioned through the positioning disc 2, the middle point of a weld bead 801 of the stabilizer bar support 8 is used as a reference point 802, the symmetrical point of the reference point 802 on the wall of the oil storage cylinder 9 relative to the axial line of the oil storage cylinder 9 is used as a welding starting point 701 of the spring disc 7, a welding head does circumferential motion along the welding starting point 701, the spring disc 7 is welded on the oil storage cylinder 9, and after welding is completed, the oil seal hole is corrected through a correcting tool.

The welding tool fixes the spring disc 7 through the spring disc bolt after positioning the spring disc through the positioning disc, and then welds the spring disc.

The correcting tool is used for correcting the oil seal hole by extending the cylindrical correcting column into the oil seal hole.

When the welding fixture is used, an oil seal hole of the oil storage cylinder 9 is placed upwards on a fixing frame 101 of the welding fixture, the stabilizer bar support 8 is fixed through the plug pin, the relative position of the stabilizer bar support 8 and the spring disc 7 is guaranteed, then the spring disc 7 is positioned through the positioning disc 2, the spring disc 7 is fixed through the spring disc plug pin 3 after positioning, then the spring disc 7 is welded through a welding arc starting point 701, after welding is completed, the welded oil storage cylinder 9 assembly is placed on a correcting table 4, and the correcting column is moved through the hydraulic cylinder to correct the oil seal hole.

In a practical scene, the welding parameters are firstly grouped by adopting a limit analysis and orthogonal test method, then the stabilizer bar bracket 8 is welded on the corresponding oil storage cylinder 9 by adopting the grouping parameters, and the deformation of the oil seal is found to be small after data analysis, so that the deformation of the oil seal hole can not be changed by changing the current and voltage, and the average deformation is 0.40 mm.

Subsequently, aiming at the looseness of the spring disc 7 and the cracking of the oil storage cylinder 9 at the expansion pocket position after press mounting, the problem of the minimum oil sealing hole deformation can be solved by adopting a mode of welding the spring disc 7, the spring disc 7 is welded by using the oil storage cylinder 9 assembly after welding the stabilizer bar support 8, and in the verification process, the deformation of the oil sealing hole after welding the spring disc 7 is reduced, and the reduction values are different along with the difference of the welding arc starting point 701 position, so that after a large number of experiments and verifications, when the welding arc starting point 701 is symmetrical with the reference point 802 about the axial lead of the oil storage cylinder 9, the deformation of the oil sealing hole after welding the spring disc 7 reaches the minimum, namely, the welding arc starting point 701 is symmetrical with the reference point 802 by taking the axial lead of the oil storage cylinder 9 as the reference, and when the spring disc 7 is welded, the minimum oil sealing hole deformation can be realized as long as the welding arc starting point 701 is on the back of the reference point 802.

Through testing after welding a plurality of spring discs 7, the average deformation of the oil seal hole is 0.12mm, and finally, the oil seal hole is corrected through a correction tool, the average deformation of the oil seal hole is measured to be 0.06mm after correction, and the product delivery requirement is met.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.