CN113695717B - Manufacturing and optimizing of vehicle body stud welding template - Google Patents
Manufacturing and optimizing of vehicle body stud welding template Download PDFInfo
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- CN113695717B CN113695717B CN202111166415.2A CN202111166415A CN113695717B CN 113695717 B CN113695717 B CN 113695717B CN 202111166415 A CN202111166415 A CN 202111166415A CN 113695717 B CN113695717 B CN 113695717B
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- 238000003466 welding Methods 0.000 title claims abstract description 250
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 65
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- 238000005457 optimization Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000523 sample Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000004040 coloring Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000008646 thermal stress Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a vehicle body stud welding template which comprises a plurality of positioning pieces, wherein each positioning piece can be correspondingly arranged on a stud welding nail, each positioning piece comprises an aluminum positioning sleeve arranged on the periphery of the stud welding nail and an iron positioning ring arranged on the periphery of the aluminum positioning sleeve, and a connecting lath is correspondingly welded between every two adjacent positioning pieces. The invention also discloses a manufacturing process of the welding template for the stud welding of the vehicle body. The invention also discloses an optimization method of the vehicle body stud welding template, which is used for optimizing the vehicle body stud welding template manufactured by the welding template manufacturing process. The welding template for the stud welding of the vehicle body has high flexibility, strong adjustability and lower manufacturing cost. Whether the adjusted stud welding template can meet the requirements of trial-manufactured vehicle models in the aspects of design, assembly, manufacture, detection and the like is checked by optimizing the method of the stud welding template so as to ensure the measurement stability of subsequent production.
Description
Technical Field
The invention relates to a vehicle body stud welding template and a manufacturing process and an optimization method thereof.
Background
The development of a white automobile body is a very important ring in the development of the automobile body, directly influences the appearance and layout of the automobile, even the structural strength, the anti-collision capability, the passenger protection capability and the like, and has a direct action on the public praise and sales volume of the automobile type. In the process of development, trial production and production of the whole vehicle, along with continuous adjustment of technical requirements, continuous optimization of the whole vehicle, result feedback of tests and the like, the part structure, the connection mode, the structure and the like of the body-in-white can be correspondingly adjusted along with the technical requirements.
In the development process of a body-in-white, the selection of a proper connection mode is very important for structural strength and future cost accounting of the whole vehicle. Stud welding is widely applied to the connection of vehicle body parts in the development of a white vehicle body because of reliable connection and lower equipment purchase cost. Stud welding is that electric arc is utilized between the end face of a stud and another plate to lift the stud, initiate arc, electrify welding current, fall and cool the stud, and thus welding is completed.
Due to the fact that the part structure, the connection mode, different structures of the white trial assembly batch and the like are continuously adjusted in the vehicle body development process, the corresponding welding stud position needs to be continuously changed and adjusted to meet the technical requirements, the overall structure adjustment performance is poor in the stud welding process, the manufacturing accuracy is further affected, and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide a vehicle body stud welding template which comprises a plurality of positioning pieces, wherein each positioning piece can be correspondingly arranged on a stud welding nail, each positioning piece comprises an aluminum positioning sleeve arranged on the periphery of the stud welding nail and an iron positioning ring arranged on the periphery of the aluminum positioning sleeve, and a connecting lath is correspondingly welded between every two adjacent positioning pieces.
The invention also discloses a manufacturing process of the welding template for the stud welding of the vehicle body, so that the manufacturing precision is improved and the manufacturing cost is reduced.
The manufacturing process of the welding template for the stud welding of the vehicle body comprises the following steps:
s1: stud position marking and welding: sequentially carrying out coordinate point finding on the vehicle body according to the coordinate data of the stud welding nail digital model X, Y, Z, drawing a cross center line at the coordinate point, drawing a circle by taking the intersection point of the cross center lines as the center of the circle and forming a welding area mark, and aiming the welding area mark by using a stud welding gun for welding;
s2: obtaining a stud vehicle body: welding a stud welding nail on a coordinate point which is marked on a vehicle body and subjected to three-coordinate measurement, and fixing a positioning piece of an aluminum positioning sleeve to the stud welding nail, wherein the result fed back after measurement meets the process requirement;
s3: installing a positioning piece: according to the diameter of the vehicle body according to the type of the stud welding nail, correspondingly installing and fixing an aluminum positioning sleeve on the periphery of the stud welding nail according to the type and the inner diameter, ensuring that a welding stud of the stud welding template is positioned at the central position, and installing an iron positioning ring outside the aluminum positioning sleeve;
s4: welding the positioning piece, the connecting lath and the positioning pin: cutting the connecting plate strip into a plurality of sections according to the link length, positioning the positioning pins and the coordinates of the vehicle body X, Y, Z in different directions, connecting the positioning pins and the connecting plate strip, placing the positioning pins in the positioning holes of the vehicle body, positioning and connecting the iron positioning rings, the positioning pins and the welding plates according to the standard of the vehicle body, and welding by using a welding gun;
s5: and (3) template finished product: and returning the stud welding nails welded by the stud welding template for the vehicle body to a three-coordinate measuring chamber for measurement, confirming the reliability of trial production completion of the stud welding template after a report to be measured is reported, and confirming that the whole set of stud welding template for the vehicle body in white is finished after no error is found.
As a further improvement, in the step S1, a measuring probe of a three-coordinate measuring machine is colored with printing paste and coordinates are marked to form a welding area mark, a cross center line is drawn at the coordinates by a drawing needle of a steel plate ruler or a right-angle steel plate ruler, and a circle is drawn by an iron drawing gauge; in the coloring process of the measuring head, a Chuiss three-coordinate measuring machine is used for measuring and calibrating a reference on a working table, after the calibration is qualified, a measuring probe is used for sticking inkpad on a white vehicle to measure and color the point according to the coordinate data of the X, Y and Z of the stud welding nail, and the subsequent coordinate can be conveniently marked when the point is found.
In the coordinate locating process in S1, three-coordinate data of a point is input into the three-coordinate measuring machine according to digital-analog related welding and assembling data of the stud welding nail, and the point is located on the vehicle body and marked after a measuring probe of the three-coordinate measuring machine is colored by dinning.
As a further improvement, in the center scribing process in S1, a steel plate ruler or a square steel plate ruler is used, a painted point is confirmed and marked with a drawing needle or other tool for the marked coordinate point, and a cross center line is drawn.
As a further improvement, in the welding area marking process in S1, after the cross center line is completed, a steel drawing gauge is used to align the digital-analog coordinate marking point to draw a circle, and the circle is required to be consistent with the positioning range of the welding area arc extinguishing sleeve and to be drawn to confirm the marking.
As a further improvement, in the aiming welding process of the welding gun in the S1, the stud welding gun is operated to fill the corresponding stud welding nail to the marked designated position according to the process, then the coil is aligned and determined to be correct, and welding is carried out after the tolerance is guaranteed to be correct.
As a further improvement, in S3, the iron positioning ring is placed outside the aluminum positioning sleeve to be tightly attached and fixed, so as to be used for the interconnection of the subsequent welding connection lath and the iron positioning ring and the connection of the stud welding template positioning pin, and for the standard center positioning function of the stud welding gun in the corresponding diameter range of the iron positioning sleeve.
As a further improvement, the S4 is that two ends of the connecting lath are polished by an angle grinder to be matched with the following state of an iron positioning ring so as to facilitate installation and welding, the diameter of the positioning pin is matched with that of the positioning hole, 2-3 positioning pins are adopted on a single set of stud welding template during installation of the positioning pin, or a strong magnet is additionally arranged to assist in fixing, the positioning pin and the connecting lath are connected in a drilling manner by a drilling gun of the connecting lath, the positioning pin is placed in the positioning hole of the vehicle body, the positioned structure is welded by an MAG welding gun, thermal stress deformation is noticed during welding, the deformation is reduced by using a front-back cross welding manner so as to guarantee the size, and the welding quality is checked.
The invention also discloses an optimization method of the vehicle body stud welding template, which comprises the following steps:
s1: marking the correct stud position on the vehicle body according to the X, Y, Z coordinate value of the over-tolerance point of the three-coordinate measurement report and the over-tolerance analysis result;
s2, marking the correct position of the stud through equipment such as a vernier caliper, a marking machine and the like;
s3: polishing to remove the deviation stud;
s4: manually welding a new stud at the new position again according to the stud position marking and welding method in the step 1 of the manufacturing process of the stud welding template of the vehicle body;
s5: arranging the vehicle body after the stud optimization to carry out three-coordinate measurement;
s6: if the stud precision is normal, cutting off the connecting lath of the old template, and re-welding the stud welding template according to the new position;
s7: and continuously observing the three-coordinate measurement result of the subsequent vehicle body stud.
The technical scheme of the invention has the following beneficial effects: the vehicle body stud welding template manufactured by the manufacturing process of the vehicle body stud welding template has high flexibility, strong adjustability and lower cost. Whether the adjusted stud welding template can meet the requirements of trial-manufactured vehicle models in the aspects of design, assembly, manufacture, detection and the like is checked by optimizing the method of the stud welding template so as to ensure the measurement stability of subsequent production.
Drawings
FIG. 1 is a flow chart of a process for manufacturing a welding template for stud welding of a vehicle body according to the present invention;
FIG. 2 is a schematic structural view of the vehicle body stud position marking and weld stud weld of the present invention;
FIG. 3 is a schematic structural view of an aluminum positioning sleeve in an installation positioning member;
FIG. 4 is a schematic structural view of an iron positioning ring in an installation positioning member;
FIG. 5 is a schematic structural view of a vehicle body stud welding template in a forming state;
FIG. 6 is a schematic structural view of a welding template for stud welding of a vehicle body according to the present invention;
FIG. 7 is a flow chart of the method for optimizing and adjusting the welding template for stud welding of the vehicle body according to the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
According to the vehicle body stud welding template, the information such as the positioning and the part connection of the stud welding template is determined according to the connection mode and the shape and position of vehicle body parts.
The stud welding template adopts the positioning scheme which is completely the same as that of the general assembly part, namely the parallelism and the turnover freedom degree in the horizontal direction are limited by the positioning holes, the parallelism and the turnover freedom degree in the vertical direction are limited by the flanging of the side wall outer plate,
confirming the type of the stud and the type of the stud welding gun in sequence at the structural design stage by completing the positioning scheme, and selecting proper materials and structures to carry out the access ports of the stud welding gun and the stud welding templateAnd (5) designing. Selecting standard stud materials according to corresponding stud welding standards; the aluminium position sleeve, the holding ring, the locating pin, connecting plate etc. select suitable welding double-screw bolt to confirm manual stud welding welder splash guard model:
and
。
in order to ensure good welding conductivity of the stud welding template in the using process, the welding gun and the welding template are nested in aluminum at the connecting port.
Referring to fig. 1 to 6, a process flow for manufacturing a welding template for stud welding of a vehicle body includes: the method comprises the following steps:
the method comprises the following steps: stud position marking and welding:
the first step of the process of manufacturing the stud welding template for trial production of the vehicle body is to color a measuring probe of a Zeiss three-coordinate measuring machine by using printing mud, sequentially perform coordinate point finding on the vehicle body according to the coordinate data of the numerical models X, Y and Z of the stud welding nail 10, draw a cross center line at a coordinate point by using a drawing needle of a steel plate ruler or a right-angle steel plate ruler, draw a circle by using a steel drawing gauge or an iron drawing gauge, ensure that the diameter of the circle is consistent with that of the anti-splash sleeve, and aim and weld a welding area mark by using a stud welding gun.
The five processes of this step will be explained in detail next.
And in the process of coloring the measuring head, a Chuiss three-Coordinate (CMM) measuring machine is used for measuring and calibrating a reference on a working table, after the calibration is qualified, a measuring probe is used for sticking inkpad on the vehicle body to measure point finding and color according to the coordinate data of the stud welding nail 10 digital model X, Y and Z, and the subsequent coordinate point finding can be conveniently marked.
And (3) coordinate point finding, namely inputting three-coordinate data of points in a three-coordinate measuring instrument according to digital-analog related welding and assembly documents of the stud welding nail 10, and finding and marking the points on the vehicle body after a measuring probe of the three-coordinate measuring instrument is colored by using the printing.
And (4) a center marking process, namely using a steel plate ruler or a right-angle steel plate ruler, confirming and marking the colored points by using a drawing needle and other tools aiming at the marked coordinate points, and drawing a cross center line.
And a welding area marking process, namely after the process of the cross center line is finished, drawing a circle by using a steel scribing gauge to align the digital-analog coordinate marking point, and drawing a circle to confirm and mark the circle to be consistent with the positioning range of the welding area arc extinguishing sleeve.
Aiming and welding by a welding gun, namely operating the welding gun to fill the corresponding stud welding nail 10 to a marked designated position according to the process, aligning the coil and confirming the error-free, and ensuring that the welding is carried out without error in tolerance.
Step two, obtaining a stud body:
and acquiring the stud body, namely welding the stud welding nail 10 on the marked coordinate spot after the three-coordinate measurement is finished on the body, wherein the result fed back after the measurement meets the process requirement, and fixing the positioning piece conveyed by a supplier to the stud welding nail 10.
Step three, installing the positioning piece 20:
and an aluminum positioning sleeve 21 for installing the periphery of the stud welding nail 10 is correspondingly installed and fixed on the periphery of the stud welding nail 10 according to the type of the stud welding nail 10 on the vehicle body and the diameter of the stud welding nail 10 and the type and the inner diameter of the aluminum positioning sleeve 21, so that the welding stud welding nail 10 of the stud welding template is positioned at the central position.
And installing the iron positioning ring 22 outside the aluminum positioning sleeve 21, namely placing the iron positioning ring 22 outside the aluminum positioning sleeve 21 to be tightly attached and fixed for the mutual connection of the subsequent welding connecting lath 30 and the iron positioning ring 22 and the connection of the stud welding template positioning pin, and for the standard center positioning function of the stud welding gun with the corresponding diameter range of the iron positioning ring 22.
Step four: welding of the positioning element 20, the connecting strip 30 and the positioning pin:
welding a connecting plate strip and a positioning pin, namely, after the aluminum positioning sleeve 21 positioning stud welding nail 10 and the iron positioning ring 22 in the previous step position the aluminum positioning sleeve 21 to complete center positioning, cutting the connecting plate strip 30 into a plurality of sections according to the connecting length, grinding the two ends of the connecting plate strip 30 by using an angle grinder to be in a state of following with the iron positioning ring so as to be convenient for installation and welding, positioning the positioning pin and a vehicle body coordinate X, Y, Z in different directions to prevent the vehicle body from moving or rotating, placing the positioning pin in a vehicle body positioning hole, connecting the positioning pin and the connecting plate strip by using a drilling gun to punch the connecting plate strip 30, placing the positioning pin and the connecting plate in the vehicle body positioning hole, connecting the iron positioning ring, the positioning pin and a welding plate according to the standard positioning of the vehicle body and welding by using an MAG welding gun, paying attention to thermal stress deformation during welding, reducing deformation by using a front-back cross welding mode to ensure the size, and checking the welding quality. In the embodiment, the positioning pins are matched with the diameter of the positioning holes, 2-3 positioning pins are welded on the template by single stud welding when the positioning pins are installed, and strong magnets can be additionally arranged to assist in fixing if special needs exist.
Step five, welding template forming:
and (3) obtaining a template finished product, checking and confirming the size and the shape and position of the stud welding template again after all the previous steps are completed, returning the stud welding nail 10 welded by the stud welding template for the vehicle body to the three-coordinate measuring chamber for measurement, confirming the reliability of trial production of the stud welding template after a report to be measured is reported, and finishing the trial production of a whole set of stud welding template after no error is confirmed to ensure the reliable use of the trial production of the stud welding template.
As shown in fig. 6, the stud welding template for the vehicle body includes a plurality of stud welding nails 10, each stud welding nail 10 corresponds to a coordinate point measured on the vehicle body on the table top by the coordinate measuring machine, the coordinate point is calibrated by the coordinate measuring machine, a positioning member 20 is disposed on the periphery of each stud welding nail 10, the positioning member 20 includes an aluminum positioning sleeve 21 mounted on the periphery of the stud welding nail 10 and an iron positioning ring 22 disposed on the periphery of the aluminum positioning sleeve 21, and a connecting lath 30 is correspondingly welded between each two adjacent positioning members 20.
Analyzing influence factors of the manufacturing precision of the stud welding template: certain errors are generated due to operation problems of positioning, measurement and the like in the template manufacturing process, and meanwhile, the accumulated errors of processing can be caused by factors of multiple process steps, long dimension chain, welding thermal deformation and the like. Through error accumulation calculation, the finally obtained stud welding template has the forming precision of +/-1.5 mm.
In this in-process, fix a position through using aluminium system position sleeve and iron system holding ring and using the locating pin, can effectively reduce the error, guarantee the size and the form and position precision of the stud welding template that final trial-manufacture was accomplished.
The vehicle body stud welding template manufactured by the manufacturing process of the vehicle body stud welding template has high flexibility, strong adjustability and lower cost. In the research and development trial-manufacturing process, a trial-manufacturing workshop reasonably plans and designs and manufactures the stud welding template according to the functions of welding studs and stud distribution areas. By applying the stud welding template in the trial-manufacturing process of the body in white, the flexibility, the adjustment convenience and the manufacturing result precision in the trial-manufacturing process can be improved, the problem feedback period is shortened, and the cost in the manufacturing process is reduced.
An optimized adjustment method of a vehicle body stud welding template comprises the following steps:
because certain errors can be accumulated in the manufacturing process of the stud welding template, in the embodiment, the stud welding template is optimized and adjusted to achieve the purposes of improving the precision and reducing the errors.
The method comprises the following specific steps: and (3) analyzing the stud precision: and after stud welding work is subsequently carried out by using the stud welding template, the stud welding work is sent to a three-coordinate measuring instrument to carry out three-coordinate measurement on the trial-manufactured white body stud welding nail, the reliability and the stability of the vehicle within a period of time are analyzed and compared by a three-coordinate measurement report, a designer needs to evaluate measurement data, the reason of the size deviation is analyzed, and the measurement data are classified into the size deviation of the body part and the manufacturing deviation of the stud template, so that further process adjustment is carried out.
Referring to fig. 7, the method for optimizing the stud welding template specifically includes the following steps:
the method comprises the following steps: and marking the correct stud position on the vehicle body according to the X, Y, Z coordinate value of the over-tolerance point of the three-coordinate measurement report and the over-tolerance analysis result.
Step two: and marking the correct position of the stud through equipment such as a vernier caliper and a marking machine.
Step three: and grinding to remove the deviation stud.
Step four: and at the new position, manually welding a new stud again according to the stud position marking and welding method in the step 1.
Step five: and arranging the stud-optimized vehicle body to perform three-coordinate measurement.
Step six: if the stud is normal in precision, the connecting lath of the old template is cut off, and the stud welding template is welded again according to the new position.
Step seven: and continuously observing the three-coordinate measurement result of the subsequent vehicle body stud. If the deviation exists, further optimization is carried out.
Because the manufacturing process is not mature enough and the precision control often fails to meet the requirement at the early stage of the project, namely the climbing stage of the project, the size of the whole vehicle is poor, and the precision and the stability of the stud welding template manufactured according to the parts of the whole vehicle have deviation. And adjusting the stud welding template at any time according to a three-coordinate measurement report of the vehicle body in the early stage of the project to compensate the manufacturing error of the vehicle body. When the manufacturing process of the vehicle body part is mature and the manufacturing precision is stable, the final size of the stud welding template is determined according to the requirements of design, assembly, manufacture, detection and the like, and the stud welding template manufactured before is adjusted to make up for the manufacturing error of the stud welding template caused by the error of the part before. After the adjustment is completed, trial production is carried out again, whether the stud welding template after adjustment can meet the requirements of trial-produced vehicle models in the aspects of design, assembly, manufacture, detection and the like is checked, so that the measurement stability of subsequent production is ensured, and meanwhile, important reference information is provided for the design and manufacture of the stud welding template on a mass production line.
The vehicle body stud welding template manufactured by the manufacturing process of the vehicle body stud welding template has high flexibility, strong adjustability and lower cost. Whether the adjusted stud welding template can meet the requirements of trial-manufactured vehicle models in the aspects of design, assembly, manufacture, detection and the like is checked by optimizing the method of the stud welding template so as to ensure the measurement stability of subsequent production.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a manufacturing process of automobile body stud welding welded templates for make automobile body stud welding welded templates, automobile body stud welding welded templates include a plurality of setting elements (20), and each setting element (20) can set up on a stud welding nail (10) correspondingly, each setting element (20) are including installing aluminium position sleeve (21) and the iron set collar (22) of setting in aluminium position sleeve (21) periphery at stud welding nail (10) periphery, and it has connecting lath (30) all to weld correspondingly between every two adjacent setting elements (20), its characterized in that, and automobile body stud welding welded templates's manufacturing process includes following step:
s1: stud position marking and welding: sequentially carrying out coordinate point finding on the vehicle body according to the coordinate data of the stud welding nail digital model X, Y, Z, drawing a cross center line at the coordinate point, drawing a circle by taking the intersection point of the cross center lines as the center of the circle and forming a welding area mark, and aiming the welding area mark by using a stud welding gun for welding;
s2: obtaining a stud vehicle body: welding a stud welding nail on a coordinate point which is marked on the vehicle body and is subjected to three-coordinate measurement, and fixing a positioning piece to the stud welding nail, wherein the result fed back after measurement meets the process requirements;
s3: installing a positioning piece: according to the diameter of the stud welding nail (10) on the vehicle body, correspondingly installing an aluminum positioning sleeve on the periphery of the stud welding nail (10) according to the type and the inner diameter, ensuring that the stud welding nail (10) welded by the stud welding template is positioned at the central position, and installing an iron positioning ring outside the aluminum positioning sleeve; placing an iron positioning ring outside the aluminum positioning sleeve to be tightly attached and fixed for the mutual connection of a subsequent welding connection lath and the iron positioning ring and the connection with a stud welding template positioning pin and for the standard center positioning of a stud welding gun with the corresponding diameter range of the iron positioning ring;
s4: welding the positioning piece, the connecting lath and the positioning pin: cutting the connecting strip into a plurality of sections according to the connecting length, positioning the connecting strip to different directions of the coordinates X, Y, Z of the car body, connecting the positioning pin and the connecting strip, placing the positioning pin in the positioning hole of the car body, positioning and connecting the iron positioning ring, the positioning pin and the welding plate according to the standard of the car body, and welding by using a welding gun;
s5: and (3) welding template forming: and returning the stud welding nails welded by the stud welding template for the vehicle body to a three-coordinate measuring chamber for measurement, confirming the reliability of trial production completion of the stud welding template after a report to be measured is reported, and confirming that the whole set of stud welding template of the vehicle body is finished after no error is found.
2. The manufacturing process of the vehicle body stud welding template according to claim 1, characterized by comprising the following steps: in the S1, a measuring probe of a three-coordinate measuring machine is used for coloring by printing paste and marking coordinate points to form welding area marks, a steel plate ruler or a right-angle steel plate ruler is used for drawing a cross central line at the coordinate points by a drawing needle, and a circle is drawn by an iron drawing gauge; in the coloring process of the measuring head, a Chuiss three-coordinate measuring machine is used for measuring and calibrating a reference on a working table, and after the calibration is qualified, a measuring probe is used for sticking inkpad on an automobile body to measure and find points and color according to the coordinate data of the screw stud welding nail digifax, Y and Z.
3. The process for manufacturing the welding template for stud welding of vehicle bodies according to claim 2, wherein: in the coordinate point finding process in the S1, three-coordinate data of points are input into a three-coordinate measuring instrument according to related welding and assembling data of a stud welding nail digifax, and the points are found out on a vehicle body and marked after ink paste is adhered and colored by a measuring probe of the three-coordinate measuring instrument.
4. The process for manufacturing the welding template for stud welding of vehicle bodies according to claim 2, wherein: and in the center marking process in the S1, a steel plate ruler or a right-angle steel plate ruler is used, the colored points are confirmed and marked by a needle drawing tool aiming at the marked coordinate points, and a cross center line is drawn.
5. The manufacturing process of the vehicle body stud welding template according to claim 2, characterized in that: in the welding area marking process in the S1, after the cross center line is completed, a steel drawing gauge is used for drawing circles to the digital-analog coordinate marking points, so that the positioning range of the digital-analog coordinate marking points is consistent with that of the welding area arc extinguishing sleeve, and the marking is confirmed.
6. The manufacturing process of the vehicle body stud welding template according to claim 2, characterized in that: and in the aiming welding process of the welding gun in the S1, the welding gun is operated to fill the corresponding stud welding nail to the marked designated position according to the process, and then the stud welding nail is aligned to the circle and determined to be correct, so that the welding is carried out after the tolerance is guaranteed to be correct.
7. The manufacturing process of the vehicle body stud welding template according to claim 1, characterized by comprising the following steps: and S4, two ends of the connecting plate strip are polished by an angle grinder and are matched with the state followed by the iron positioning ring so as to be convenient for installation and welding, the positioning pins are matched with the diameter of the positioning holes, 2-3 positioning pins are adopted on a single set of stud welding template during installation of the positioning pins, the positioning pins are connected with the connecting plate strip in a drilling gun punching mode and are placed in the positioning holes of the vehicle body, an MAG (metal active gas) welding gun is used for welding the positioned structure, the thermal stress deformation is noticed during welding, the deformation is reduced by using a front-back cross welding mode so as to ensure the size, and the welding quality is checked.
8. An optimization method of a vehicle body stud welding template, which is used for optimizing the vehicle body stud welding template manufactured by the manufacturing process of the vehicle body stud welding template according to any one of claims 1 to 7, and is characterized by comprising the following steps of:
s1: marking the correct stud position on the vehicle body according to the X, Y, Z coordinate value of the over-tolerance point of the three-coordinate measurement report and the over-tolerance analysis result;
s2, marking the correct position of the stud through a vernier caliper and a marking machine;
s3: polishing to remove deviation studs;
s4: manually welding a new stud again according to the stud position marking and welding method in the stud position marking and welding process step 1 of the vehicle body stud welding template manufacturing process at the correct position of the marked stud;
s5: arranging the stud-optimized vehicle body to perform three-coordinate measurement;
s6: if the stud is normal in precision, cutting off a connecting lath of the old template, and re-welding the stud welding template according to the marked correct position of the stud;
s7: and continuously observing the three-coordinate measurement result of the subsequent vehicle body stud.
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| CN202111166415.2A CN113695717B (en) | 2021-09-30 | 2021-09-30 | Manufacturing and optimizing of vehicle body stud welding template |
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| CN202111166415.2A CN113695717B (en) | 2021-09-30 | 2021-09-30 | Manufacturing and optimizing of vehicle body stud welding template |
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| CN113695717A CN113695717A (en) | 2021-11-26 |
| CN113695717B true CN113695717B (en) | 2023-01-24 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179546A (en) * | 1997-12-22 | 1999-07-06 | Daihen Corp | Stud welding method by automatically setting welding equipment operation |
| RU2218258C1 (en) * | 2002-07-01 | 2003-12-10 | Открытое акционерное общество "ГАЗ" | Method for tuning assembling and welding jig |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH563208A5 (en) * | 1973-10-02 | 1975-06-30 | Inventio Ag | |
| DE102007056271B4 (en) * | 2007-11-22 | 2022-03-24 | Bolzenschweißtechnik Heinz Soyer GmbH | Device and method for reducing the blowing effect in stud welding |
| CN201124289Y (en) * | 2007-11-22 | 2008-10-01 | 江西变压器科技股份有限公司 | Welding die having wedge-shaped locating structure |
| DE102011016132A1 (en) * | 2011-03-29 | 2012-10-04 | Newfrey Llc | Bolt joining methods and tools therefor |
| CN202224886U (en) * | 2011-08-18 | 2012-05-23 | 沈阳远大铝业工程有限公司 | Positioning device for welding screw stud |
| CN104785990B (en) * | 2015-04-15 | 2016-09-21 | 江西洪都航空工业集团有限责任公司 | A kind of large-scale model butt welding template and flat welding process |
| CN210997006U (en) * | 2019-12-03 | 2020-07-14 | 北京车和家信息技术有限公司 | Stud welding positioning tool |
| CN214161939U (en) * | 2021-01-13 | 2021-09-10 | 北京电子科技职业学院 | Aluminum alloy part welding tool for automobile |
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2021
- 2021-09-30 CN CN202111166415.2A patent/CN113695717B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179546A (en) * | 1997-12-22 | 1999-07-06 | Daihen Corp | Stud welding method by automatically setting welding equipment operation |
| RU2218258C1 (en) * | 2002-07-01 | 2003-12-10 | Открытое акционерное общество "ГАЗ" | Method for tuning assembling and welding jig |
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| CN113695717A (en) | 2021-11-26 |
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