CN111347207A - Welding fixture and welding method for compensating thermal deformation of patch board - Google Patents
Welding fixture and welding method for compensating thermal deformation of patch board Download PDFInfo
- Publication number
- CN111347207A CN111347207A CN202010253444.1A CN202010253444A CN111347207A CN 111347207 A CN111347207 A CN 111347207A CN 202010253444 A CN202010253444 A CN 202010253444A CN 111347207 A CN111347207 A CN 111347207A
- Authority
- CN
- China
- Prior art keywords
- plate
- patch
- welding
- positioning
- positioning part
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention provides a welding fixture and a welding method for compensating thermal deformation of a patch board, wherein the welding fixture comprises a board surface positioning part, a board edge positioning part and a pressing part, wherein the board surface positioning part is used for positioning stacked boards; the welding method comprises the steps of designing and installing an adjusting welding fixture according to the shape of a pre-deformation patch plate, forming the pre-deformation patch plate by welding on the welding fixture, forming the patch plate by heating the pre-deformation patch plate, judging whether the patch plate is qualified or not by clamping and thermal deformation station positioning, adjusting or modifying the patch plate if the patch plate is unqualified, and locking and storing corresponding welding fixture parameters after the patch plate is qualified. The invention finally realizes the offset of the influence of deformation of the patch plate caused by cooling after welding by reversely compensating the deformation amount expected to appear in the welding and positioning process of forming the patch plate.
Description
Technical Field
The invention belongs to the technical field of thermoforming, and particularly relates to a welding fixture and a welding method for compensating thermal deformation of a patch plate.
Background
The hot forming technology is used as an important processing means for realizing light weight of automobiles, and is increasingly applied to the field of production and processing of new automobile models in recent years. Among them, the hot forming technique of the patch panel is one of hot forming techniques, and is to weld two or more steel plates to form the patch panel, as shown in fig. 2 and 3, and then to heat, press, and quench the whole patch panel, and the hot forming technique of the patch panel is widely applied to parts such as a B pillar, an a pillar, and the like of a car.
In the actual production process by applying the patch plate hot forming technology, the patch plate is gradually cooled in the time of being placed in a stamping die after the patch plate is heated, but the patch plate is formed by welding a plurality of steel plates, and the materials, the thicknesses, the cooling speeds and the like of all parts among different steel plates are different, so that the patch plate can warp and deform under the action of internal stress along with the cooling of the patch plate, and the shape of the cooled and deformed patch plate is as shown in fig. 4. The patch board is out of shape and makes the automation snatch the patch board and place the patch board in stamping die and the easy mistake that appears in operations such as location to lead to production line to stop the platform, part to scrap scheduling problem.
In the prior art, in order to solve the problems, the time from discharging the patch plate to placing the patch plate in a hot stamping die is shortened, and then the temperature drop of the patch plate is reduced, namely the patch plate is placed in the hot stamping die before the patch plate has a large deformation, so that the influence of the cooling deformation of the patch plate on the subsequent forming process is reduced, but the problem of the self warping and deformation of the patch plate is not fundamentally solved or improved by the method.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a welding fixture and a welding method for compensating the thermal deformation of a patch plate, which realize the reverse compensation of the deformation amount expected to appear in the welding and positioning process of forming the patch plate and counteract the influence of the deformation of the patch plate caused by cooling after welding, and the technical scheme of the invention is as follows by combining the attached drawings of the specification:
a welding jig that compensates for thermal deformation of a patch panel, the welding jig comprising: a board surface positioning part, a board edge positioning part and a pressing part;
the plate surface positioning parts are positioned at the plate surface positions of the superposed plates and are positioned on the same surface of the superposed plates, the plate surface positioning parts are in contact connection with the plate surfaces, and the plates are positioned outside the edges of the superposed plates along the positioning parts and are in contact connection with the edges of the superposed plates;
the pressing part is positioned on the other surface of the superposed plate and is in contact connection with the plate surface of the superposed plate, and pressure perpendicular to the plate surface is applied to the superposed plate;
under the positioning of the plate surface positioning part and the plate edge positioning part and the pressing force action of the pressing part, the superposed plates are positioned and extruded to form a pre-deformed laminated plate, and the number and the positions of the plate surface positioning part, the plate edge positioning part and the pressing part are matched with the shape and the size of the pre-deformed laminated plate;
the pre-deformed laminated plate is a laminated plate which is reversely deformed in advance in order to compensate deformation caused by cooling after the heat treatment of the patch plate.
Furthermore, the plate surface positioning part and the plate are horizontally arranged along the positioning part and installed on the base part;
the superposed plate is arranged above the plate surface positioning part, and the bottom of the plate surface of the superposed plate is in contact connection with the positioning end of the plate surface positioning part;
the pressing portion is located above the stacked plates, and the pressing end of the pressing portion is in contact connection with the tops of the plate surfaces of the stacked plates.
Further, the contact connection form of the board surface positioning part and the superposed board is point contact, line contact or surface contact;
the contact connection form of the plate and the superposed plates along the positioning part is line contact or surface contact;
the contact connection of the pressing part and the stacked plate is point contact, line contact or surface contact.
Further, the welding fixture further comprises a positioning pin;
the locating pin is positioned in a panel overlapping region of the stacked panels.
A welding method for compensating the thermal deformation of a patch plate, which adopts the welding fixture as claimed in claim 1, and comprises the following specific processes:
s1: designing the welding fixture according to the shape of the pre-deformed laminated plate, wherein the deformation amount of the pre-deformed laminated plate is calculated through finite element analysis software or obtained by experience so as to realize reverse compensation of the deformation of the patch plate which is subjected to thermal deformation due to cooling after heating;
s2: determining the number and the installation positions of the plate surface positioning part, the plate edge positioning part and the pressing part according to a designed welding clamp, installing the plate surface positioning part, the plate edge positioning part and the pressing part on the base part, and adjusting the heights of the plate surface positioning part, the plate edge positioning part and the pressing part so as to realize that the shape of the superposed plate clamped and fixed by the welding clamp is consistent with the shape of the pre-deformed superposed plate;
s3: mounting a pre-deformation laminated plate to be welded on the adjusted welding fixture, and welding the pre-deformation laminated plate to form a pre-deformation patch plate;
s4: heating the pre-deformed patch plate and transporting the pre-deformed patch plate to a thermoforming station;
s5: observing the clamping and transporting state of the pre-deformed patch board and the positioning state of the pre-deformed patch board at the thermoforming station, judging whether the patch board is qualified, if the pre-deformed patch board is stably and reliably clamped and transported to the thermoforming station and the positioning is realized at the thermoforming station, judging the patch board, returning to the step S7, otherwise, judging the patch board is unqualified, and returning to the step S6;
s6: adjusting the welding jig, returning to step S2, or modifying the welding jig, returning to step S1;
s7: and locking and storing various parameters of the welding fixture, and directly calling the parameters of the welding fixture when the same type of patch boards need to be welded.
Further, in step S6, when only partial individual adjustment needs to be performed on the vertical positions or horizontal positions of the board surface positioning portion, the board edge positioning portion, and the pressing portion in the welding fixture to achieve the qualified standard, it is determined that fine adjustment needs to be performed on the welding fixture, and the process returns to step S2; otherwise, the welding jig needs to be modified, and the process returns to step S1.
Further, in step 6, the condition that the welding fixture needs to be modified includes: when the adjusting ranges of the plate surface positioning part and the plate edge positioning part are smaller than the required adjusting amount; the pressing force range of the pressing part is less than the pressing force required to be increased; when the positions and the number of the plate surface positioning part and the plate edge positioning part and the pressing part need to be reset.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the welding fixture and the welding method for compensating the thermal deformation of the patch board, the pre-deformation process is added in the patch board welding process, so that the patch board can be automatically grabbed and placed in the stamping die and positioned in a relatively flat state, and the problems of difficulty in grabbing by a manipulator, difficulty in positioning in the die, production line stop, part scrapping and the like caused by the fact that the patch board is warped and deformed due to cooling in the period from the time when the patch board is integrally heated to the time when the patch board is placed between the stamping die are solved.
2. The welding fixture and the welding method for compensating the thermal deformation of the patch plate fundamentally solve the problem of warping and deformation caused by cooling after the patch plate is subjected to thermal processing, so that the time from discharging the patch plate after being heated to placing the patch plate in a hot stamping die does not need to be strictly controlled, and the flexibility of the hot forming process of the patch plate is improved.
3. The welding fixture for compensating the thermal deformation of the patch board has the advantages of simple structure, reliable positioning and clamping, flexible and convenient operation and suitability for popularization in the production process.
Drawings
FIG. 1 is a schematic structural diagram of a welding fixture for compensating thermal deformation of a patch panel according to the present invention;
FIG. 2 is a front view of a patch panel;
FIG. 3 is a top view of a patch panel;
FIG. 4 is a schematic view showing the structure of the patch panel deformed by cooling after being heated;
FIG. 5 is a schematic diagram of a pre-deformed patch plate structure after welding by the welding fixture for compensating the thermal deformation of the patch plate according to the present invention;
FIG. 6 is a block diagram of a welding method for compensating for thermal deformation of a patch panel according to the present invention;
in the figure:
1 base part, 201 first plate surface positioning part, 202 second plate surface positioning part, 203 third plate surface positioning part,
204 fourth plate surface positioning part, 205 fifth plate surface positioning part, 206 sixth plate surface positioning part, 3 positioning pin,
401 a first compression part, 402 a second compression part, 403 a third compression part, 404 a fourth compression part,
501 first plate edge positioning part, 502 second plate edge positioning part and 503 third plate edge positioning part;
a large steel plate and B small steel plate.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
as shown in FIG. 2, a small steel plate B is arranged on a large steel plate A in an overlapping mode, the large steel plate A and the small steel plate B are welded through a spot welding process to form a patch plate, the invention discloses a welding fixture for compensating the thermal deformation of the patch plate, and the welding fixture is used for positioning and pressing the pre-deformation patch plate formed by welding the large steel plate A and the small steel plate B. The pre-deformation patch board is formed by reversely buckling and deforming a large steel plate A and a small steel plate B which are superposed in advance and welding the large steel plate A and the small steel plate B by spot welding in order to compensate buckling and deformation generated by cooling after the heat treatment of the patch board; after the large steel plate A and the small steel plate B are stacked, the structure formed by reverse buckling deformation in advance before spot welding is a pre-deformed stacked plate.
The welding jig of the invention includes: base portion, face location portion, board along location portion and the portion that compresses tightly.
As shown in fig. 1, the base part 1 is a support base of the entire welding jig; six plate surface positioning parts are arranged and are positioned below the pre-deformed laminated plate, and the number of the plate surface positioning parts is matched with the area of the bottom surface of the pre-deformed laminated plate; the number of the plate edge positioning parts is three, the plate edge positioning parts are all positioned at the outer side of the outer edge of the pre-deformation laminated plate, and the number of the plate edge positioning parts is matched with the perimeter of the outer contour of the pre-deformation laminated plate; the number of the pressing parts is four, the pressing parts are all located above the pre-deformation laminated plate, and the number of the pressing parts is matched with the area of the top surface of the pre-deformation laminated plate.
As shown in fig. 1, of the six board positioning portions, the positions and heights of the board positioning portions are all set along with the shape of the bottom surface of the pre-deformed laminated board, and the tops of the board positioning portions are respectively in contact connection with the bottom surface of the pre-deformed laminated board, so that: the pre-deformed laminated plate is limited and stably supported in the vertical direction through the plate surface positioning part. The first board positioning portion 201 is disposed at one end of the bottom of the pre-deformed laminated board, the sixth board positioning portion 206 is disposed at the other end of the bottom of the pre-deformed laminated board, the second board positioning portion 202 is disposed inside the first board positioning portion 201 and is located opposite to one end of the small steel plate B in the pre-deformed laminated board, the fifth board positioning portion 205 is disposed inside the sixth board positioning portion 206 and is located opposite to the other end of the small steel plate B in the pre-deformed laminated board, the fourth board positioning portion 204 is disposed at the maximum deformation amount of the pre-deformed laminated board, and the third board positioning portion 203 and the fourth board positioning portion 204 are disposed adjacent to each other.
Based on prior art, face location portion can carry out position adjustment on level or vertical direction to satisfy corresponding location demand.
In the plate surface positioning part, the top of the plate surface positioning part is respectively in contact connection with the bottom of the pre-deformed laminated plate, and the contact form is point contact, line contact or surface contact; for example: as shown in fig. 1, the top of the first board positioning portion 201 is an outward convex cylindrical surface, and the bottom of the pre-deformed laminated board for positioning and supporting is an outward convex arc surface, so that a line contact formed by two outward convex arc surfaces in a tangent manner is formed between the first board positioning portion 201 and the bottom of the pre-deformed laminated board; the top of the second board positioning part 202 is a convex spherical surface, and the bottom of the pre-deformed laminated board for positioning and supporting is a convex arc surface, so that a point contact formed by the convex spherical surface and the convex arc surface in a tangent manner is formed between the first board positioning part 201 and the bottom of the pre-deformed laminated board; the top of the fourth board positioning part 204 is a concave cylindrical surface, and the bottom of the pre-deformed laminated board for positioning and supporting is a convex arc surface, so that the fourth board positioning part 204 is matched with the bottom of the pre-deformed laminated board to form surface contact; in addition, the third plate surface positioning portion 203 and the sixth plate surface positioning portion 206 are in surface contact with the bottom of the pre-deformed laminated plate, and the fifth plate surface positioning portion 205 is in line contact with the bottom of the pre-deformed laminated plate.
As shown in fig. 1, in the three plate edge positioning portions, the positions and heights of the plate edge positioning portions are all arranged along the outer edge profile of the pre-deformed laminated plate, and the side surfaces of the plate edge positioning portions are respectively in contact connection with the outer edges of the pre-deformed laminated plate, so that: the pre-deformed laminated plate is limited and stably supported in the horizontal and vertical directions along the positioning part through the plate. The first plate is disposed outside one end of the pre-deformed laminated plate along the positioning portion 501, the second plate is disposed outside the other end of the pre-deformed laminated plate along the positioning portion 502, and the third plate is disposed outside one side of the pre-deformed laminated plate along the positioning portion 503.
Based on prior art, the board can carry out position adjustment along location portion on level or vertical direction to satisfy corresponding location demand.
In the plate edge positioning part, the side surfaces of the plate edge positioning part are respectively in contact connection with the outer edges of the pre-deformed laminated plates, and the contact form is line contact or surface contact.
In the process of positioning the pre-deformed laminated plate by the plate surface positioning part and the plate along the positioning part, positioning pin holes can be formed in the plate surface of the pre-deformed laminated plate according to actual needs and positioned by the positioning pins 3 so as to prevent the pre-deformed laminated plate from sliding in the horizontal direction, and the positioning pins 3 are installed on the base part 1 through the existing three-dimensional adjusting mechanism.
As shown in fig. 1, the height of the four pressing portions matches with the shape of the pre-deformed laminated board, and the position of the pressing portions matches with the shape of the pre-deformed laminated board and the position of the lower board surface positioning portion, so as to: and applying vertical downward pressure on the pre-deformed laminated plate to be matched with the plate surface positioning part and the plate edge positioning part, so that the pre-deformed laminated plate is formed and the shape is kept stable. The first pressing portion 401 and the second plate surface positioning portion 202 are arranged in a corresponding manner, that is, the first pressing portion 401 faces one end of the small steel plate B in the pre-deformed laminated plate, the second pressing portion 402 is arranged between the second plate surface positioning portion 202 and the third plate surface positioning portion 203, the third pressing portion 403 and the fourth plate surface positioning portion 204 are arranged in a corresponding manner, and the fourth pressing portion 404 and the sixth plate surface positioning portion 206 are arranged in a corresponding manner, that is, the fourth pressing portion 404 faces the end position of the pre-deformed laminated plate.
Based on the prior art, the pressing part can be adjusted in position in the horizontal or vertical direction to meet the corresponding pressing requirements.
In the above-mentioned pressing portion, the top end of the pressing portion is respectively in contact connection with the top surface of the pre-deformed laminated plate, and the contact form is similar to the plate surface positioning portion, and is respectively point contact, line contact or surface contact, which is not described herein again.
In summary, after the large steel plate a and the small steel plate B are stacked, the stacked large steel plate a and the stacked small steel plate B are placed on the plate surface positioning portion and the plate edge positioning portion, and under the pressure action of the pressing portion and the positioning of the plate surface positioning portion and the plate edge positioning, the stacked large steel plate a and the stacked small steel plate B are correspondingly deformed and maintained to form a pre-deformed stacked plate, and then the pre-deformed patch plate is formed by spot welding.
The invention also discloses a welding method for compensating the thermal deformation of the patch plate, the welding fixture is used for clamping and fixing a large steel plate A and a small steel plate B to be welded, and as shown in figure 6, the specific welding process is as follows:
s1: designing a welding fixture based on deformation compensation;
as shown in fig. 2 and 3, the patch board spot-welded by the positioning and clamping of the conventional common welding fixture is flat, but after the flat patch board is heated in a heating furnace, the shape of the patch board is warped and deformed along with the cooling of the flat patch board, and the warped deformation is obtained by test measurement, empirical estimation or finite element software analysis, so that after factors such as production beat and production environment are locked, the warped deformation which may be generated is reversely compensated by the methods such as finite element analysis software calculation or empirical analysis, the shape of the heated and cooled pre-deformed patch board is flat or does not affect the production, and the welding fixture is designed according to the shape of the pre-deformed patch board;
s2: installing and adjusting a welding fixture:
determining the number and the installation positions of corresponding plate surface positioning parts, plate edge positioning parts and pressing parts according to a designed welding clamp, installing the plate surface positioning parts, the plate edge positioning parts and the pressing parts on a base part, and adjusting the heights of the plate surface positioning parts, the plate edge positioning parts and the pressing parts so as to realize that the shape of a pre-deformed laminated plate formed by overlapping a large steel plate A and a small steel plate B which are clamped and fixed by the welding clamp is consistent with the shape of the pre-deformed patch plate obtained in the step S1;
s3: welding to form a pre-deformation patch plate under the clamping of a welding fixture;
installing a large steel plate A and a small steel plate B to be welded on the adjusted welding fixture, keeping the shape of the pre-deformed laminated plate unchanged all the time under the clamping and fixing of the welding fixture, and performing spot welding on the pre-deformed laminated plate through a spot welding machine to form a pre-deformed patch plate;
s4: heating the pre-deformed patch plate and transporting the pre-deformed patch plate to a thermoforming station;
heating the pre-deformation patch plate by a heating furnace, and transporting the pre-deformation patch plate after being heated and taken out to the position of a hot stamping die;
s5: judging whether the patch board is qualified or not;
observing whether the deformed patch board is reliably clamped and transported and whether the deformed patch board reaches the position of the hot stamping die to realize accurate positioning or not in the process that the heated and cooled deformed patch board is clamped and transported to the position of the stamping die, and judging that the pre-deformed patch board formed by clamping, positioning and welding through the welding fixture is qualified at the moment if the deformed patch board is stably and reliably clamped and transported to the position of the hot stamping die and can realize accurate positioning in the hot stamping die, and entering the step 7; otherwise, judging that the pre-deformed patch plate formed by clamping, positioning and welding through the welding fixture is unqualified, and entering the step 8;
s6: trimming or modifying the welding fixture;
when the pre-deformed patch plate formed by clamping, positioning and welding the welding fixture is judged to be unqualified, judging whether the welding fixture needs to be subjected to fine adjustment to reach a qualified standard or the welding fixture needs to be modified according to the difference between the pre-deformed patch plate and the qualified pre-deformed patch plate;
when the qualified standard can be reached only by carrying out local individual adjustment on the vertical positions or the horizontal positions of the plate surface positioning part, the plate edge positioning part and the pressing part in the welding fixture, judging that the welding fixture needs to be subjected to fine adjustment, and entering the step 2; otherwise, judging that the welding fixture needs to be modified, and entering the step 3;
situations that require modification of the welding jig include: the adjustable ranges of the plate surface positioning part and the plate edge positioning part are too small, and larger adjustment amount is needed; the pressing force of the pressing part is too small, and the pressing force needs to be increased; the positions and the number of the plate surface positioning part and the plate edge positioning part and the pressing part are unreasonable, and the uniform deformation and the pressing of parts cannot be realized;
modifying the welding fixture means: modifying the number or position of the board surface positioning portion, the board edge positioning portion, and the pressing portion, modifying the pressing force of the pressing portion, and the like.
S7, locking and storing various parameters of the welding fixture;
when the pre-deformed patch plate formed by clamping, positioning and welding the welding fixture is judged to be qualified, the pre-deformed patch plate formed by spot welding the large steel plate A and the small steel plate B of the type accords with the pre-deformation compensation requirement, all parameters of the welding fixture are locked and stored, and the pre-deformed patch plate can be directly called when the same type of patch plate needs to be processed;
the parameters of the welding fixture comprise: the number or position of the board surface positioning part, the board edge positioning part and the pressing part, and the pressing force of the pressing part is modified, etc.
Claims (7)
1. The utility model provides a welding jig of compensation patch board heat altered shape which characterized in that:
the welding jig includes: a board surface positioning part, a board edge positioning part and a pressing part;
the plate surface positioning parts are positioned at the plate surface positions of the superposed plates and are positioned on the same surface of the superposed plates, the plate surface positioning parts are in contact connection with the plate surfaces, and the plates are positioned outside the edges of the superposed plates along the positioning parts and are in contact connection with the edges of the superposed plates;
the pressing part is positioned on the other surface of the superposed plate and is in contact connection with the plate surface of the superposed plate, and pressure perpendicular to the plate surface is applied to the superposed plate;
under the positioning of the plate surface positioning part and the plate edge positioning part and the pressing force action of the pressing part, the superposed plates are positioned and extruded to form a pre-deformed laminated plate, and the number and the positions of the plate surface positioning part, the plate edge positioning part and the pressing part are matched with the shape and the size of the pre-deformed laminated plate;
the pre-deformed laminated plate is a laminated plate which is reversely deformed in advance in order to compensate deformation caused by cooling after the heat treatment of the patch plate.
2. A welding jig for compensating thermal deformation of a patch panel as claimed in claim 1, wherein:
the plate surface positioning part and the plate are horizontally arranged along the positioning part and are installed on the base part;
the superposed plate is arranged above the plate surface positioning part, and the bottom of the plate surface of the superposed plate is in contact connection with the positioning end of the plate surface positioning part;
the pressing portion is located above the stacked plates, and the pressing end of the pressing portion is in contact connection with the tops of the plate surfaces of the stacked plates.
3. A welding jig for compensating thermal deformation of a patch panel as claimed in claim 1 or 2, wherein:
the contact connection form of the plate surface positioning part and the superposed plates is point contact, line contact or surface contact;
the contact connection form of the plate and the superposed plates along the positioning part is line contact or surface contact;
the contact connection of the pressing part and the stacked plate is point contact, line contact or surface contact.
4. A welding jig for compensating thermal deformation of a patch panel as claimed in claim 1, wherein:
the welding fixture further comprises a positioning pin;
the locating pin is positioned in a panel overlapping region of the stacked panels.
5. A welding method for compensating thermal deformation of a patch plate is characterized by comprising the following steps:
the welding method adopts the welding fixture as claimed in claim 1, and comprises the following specific processes:
s1: designing the welding fixture according to the shape of the pre-deformed laminated plate, wherein the deformation amount of the pre-deformed laminated plate is calculated through finite element analysis software or obtained by experience so as to realize reverse compensation of the deformation of the patch plate which is subjected to thermal deformation due to cooling after heating;
s2: determining the number and the installation positions of the plate surface positioning part, the plate edge positioning part and the pressing part according to a designed welding clamp, installing the plate surface positioning part, the plate edge positioning part and the pressing part on the base part, and adjusting the heights of the plate surface positioning part, the plate edge positioning part and the pressing part so as to realize that the shape of the superposed plate clamped and fixed by the welding clamp is consistent with the shape of the pre-deformed superposed plate;
s3: mounting a pre-deformation laminated plate to be welded on the adjusted welding fixture, and welding the pre-deformation laminated plate to form a pre-deformation patch plate;
s4: heating the pre-deformed patch plate and transporting the pre-deformed patch plate to a thermoforming station;
s5: observing the clamping and transporting state of the pre-deformed patch board and the positioning state of the pre-deformed patch board at the thermoforming station, judging whether the patch board is qualified, if the pre-deformed patch board is stably and reliably clamped and transported to the thermoforming station and the positioning is realized at the thermoforming station, judging the patch board, returning to the step S7, otherwise, judging the patch board is unqualified, and returning to the step S6;
s6: adjusting the welding jig, returning to step S2, or modifying the welding jig, returning to step S1;
s7: and locking and storing various parameters of the welding fixture, and directly calling the parameters of the welding fixture when the same type of patch boards need to be welded.
6. A welding method for compensating for thermal distortion of a patch panel as claimed in claim 5, wherein:
in the step S6, when only partial individual adjustment is needed to be performed on the vertical positions or horizontal positions of the board surface positioning portion, the board edge positioning portion, and the pressing portion in the welding fixture to achieve the qualified standard, it is determined that fine adjustment needs to be performed on the welding fixture, and the process returns to the step S2; otherwise, the welding jig needs to be modified, and the process returns to step S1.
7. A welding method for compensating for thermal distortion of a patch panel as claimed in claim 5, wherein:
in step 6, the condition that the welding fixture needs to be modified includes: when the adjusting ranges of the plate surface positioning part and the plate edge positioning part are smaller than the required adjusting amount; the pressing force range of the pressing part is less than the pressing force required to be increased; when the positions and the number of the plate surface positioning part and the plate edge positioning part and the pressing part need to be reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010253444.1A CN111347207A (en) | 2020-04-02 | 2020-04-02 | Welding fixture and welding method for compensating thermal deformation of patch board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010253444.1A CN111347207A (en) | 2020-04-02 | 2020-04-02 | Welding fixture and welding method for compensating thermal deformation of patch board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111347207A true CN111347207A (en) | 2020-06-30 |
Family
ID=71194818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010253444.1A Pending CN111347207A (en) | 2020-04-02 | 2020-04-02 | Welding fixture and welding method for compensating thermal deformation of patch board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111347207A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767185A (en) * | 2009-12-25 | 2010-07-07 | 中国科学院金属研究所 | Quantitative reverse deformation arrangement based method for designing cast model |
| CN201841378U (en) * | 2010-11-11 | 2011-05-25 | 哈尔滨华崴焊切股份有限公司 | Predeformation mechanism for welding of steel plate |
| CN102500657A (en) * | 2011-11-02 | 2012-06-20 | 宜昌江峡船用机械有限责任公司 | Method for correcting welding deformation of large plate-type structural piece |
| CN103753269A (en) * | 2013-12-23 | 2014-04-30 | 山东大学 | Clamping method capable of compensating sheet part for machining deformation |
| CN203726061U (en) * | 2014-03-05 | 2014-07-23 | 中国石油大学(华东) | Controllable predeformation welding clamp for solar heat collection panel |
| KR20150120676A (en) * | 2014-04-18 | 2015-10-28 | 삼성중공업 주식회사 | Apparatus for assembling for anti-thermal deformation |
| CN105252118A (en) * | 2015-11-20 | 2016-01-20 | 辽宁忠旺特种车辆制造有限公司 | Welding process for rear door of self-supporting van vehicle |
| CN105562984A (en) * | 2014-09-30 | 2016-05-11 | 株洲南车机电科技有限公司 | Welding clamp and method for induction board of linear motor |
| CN206940955U (en) * | 2017-07-20 | 2018-01-30 | 上海航天精密机械研究所 | A kind of novel aluminum alloy heat treating castings device |
| CN107962310A (en) * | 2017-11-10 | 2018-04-27 | 北京航星机器制造有限公司 | A kind of postwelding predeformation improves connector and the method for mother metal deformation uniformity |
-
2020
- 2020-04-02 CN CN202010253444.1A patent/CN111347207A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767185A (en) * | 2009-12-25 | 2010-07-07 | 中国科学院金属研究所 | Quantitative reverse deformation arrangement based method for designing cast model |
| CN201841378U (en) * | 2010-11-11 | 2011-05-25 | 哈尔滨华崴焊切股份有限公司 | Predeformation mechanism for welding of steel plate |
| CN102500657A (en) * | 2011-11-02 | 2012-06-20 | 宜昌江峡船用机械有限责任公司 | Method for correcting welding deformation of large plate-type structural piece |
| CN103753269A (en) * | 2013-12-23 | 2014-04-30 | 山东大学 | Clamping method capable of compensating sheet part for machining deformation |
| CN203726061U (en) * | 2014-03-05 | 2014-07-23 | 中国石油大学(华东) | Controllable predeformation welding clamp for solar heat collection panel |
| KR20150120676A (en) * | 2014-04-18 | 2015-10-28 | 삼성중공업 주식회사 | Apparatus for assembling for anti-thermal deformation |
| CN105562984A (en) * | 2014-09-30 | 2016-05-11 | 株洲南车机电科技有限公司 | Welding clamp and method for induction board of linear motor |
| CN105252118A (en) * | 2015-11-20 | 2016-01-20 | 辽宁忠旺特种车辆制造有限公司 | Welding process for rear door of self-supporting van vehicle |
| CN206940955U (en) * | 2017-07-20 | 2018-01-30 | 上海航天精密机械研究所 | A kind of novel aluminum alloy heat treating castings device |
| CN107962310A (en) * | 2017-11-10 | 2018-04-27 | 北京航星机器制造有限公司 | A kind of postwelding predeformation improves connector and the method for mother metal deformation uniformity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10022766B2 (en) | Press forming method and method of manufacturing press-formed part | |
| CA1118571A (en) | Method and apparatus for forming expanded panels | |
| CN200970602Y (en) | Creep aging shape corrector | |
| CN103424315A (en) | Experimental facility for measurement of hot forming limit of laser tailor-welded blank | |
| CN111136134B (en) | Forming device and forming process for obtaining curved ribbed wallboard | |
| US20210284565A1 (en) | Glass panel with reduced extension strain | |
| CN112536358A (en) | Process and die device for creep age forming of complex variable-curvature component | |
| CN111360156A (en) | Laser tailor-welded blank, laser tailor-welded blank thermoformed part and preparation method thereof | |
| CN111347207A (en) | Welding fixture and welding method for compensating thermal deformation of patch board | |
| JP2020097052A (en) | Hot-forming press, heating box for hot-forming press, and methods of hot-forming press of workpiece | |
| CN112975045A (en) | Graphite clamp for battery liquid cooling plate brazing and clamping method thereof | |
| CN211516506U (en) | Tip welding frock of electricity core module | |
| CN113432576B (en) | Titanium alloy thin-wall component differential temperature forming resilience testing device and method | |
| KR102347724B1 (en) | Cooling structure of warm forming press molding adapted for simultaneous forming of carbon fiber reinforced polymer and metal plate | |
| CN213672334U (en) | Brazing tool for heat exchange honeycomb structure | |
| CN209829997U (en) | Vibration creep composite aging progressive forming device based on air pressure loading | |
| CN114854956A (en) | Clamping device for quenching ultrahigh-strength steel thin-wall structural member and quenching method | |
| CN109848250B (en) | Aluminum alloy sheet wire filling hot shaping process | |
| CN114589264A (en) | Processing system and processing method of thin-wall austenitic stainless steel seal head | |
| CN111394564A (en) | High-rigidity platform for heat treatment of large thin-wall light alloy castings and use method thereof | |
| CN112024691A (en) | Cold-pressing stretching forming device and forming method for high rectangular box of oil tank of special vehicle | |
| CN219189109U (en) | Automatic welding device for welding seams of vehicle body | |
| US20230023750A1 (en) | Method for the media-tight connection of two plate-shaped components | |
| CN217991479U (en) | Tool for welding inclined plane aluminum plate | |
| CN220240483U (en) | IGBT welding fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200630 |
|
| RJ01 | Rejection of invention patent application after publication |