Three-jointed board welding anti-deformation fixing device

Abstract

The utility model provides a three-jointed board welding anti-deformation fixing device which comprises a positioning column, a bottom plate and a hydraulic pressing rod arranged on the edge of the bottom plate. The bottom plate is arranged along with the appearance of the three-jointed board, the positioning columns are arranged on the edges of the three-jointed board respectively, the three-jointed board is provided with a first welding seam and a second welding seam, and the two sides of the upper portion of the first welding seam and the two sides of the upper portion of the second welding seam are each provided with a pair of pressing strips. A first support and a second support are arranged on the lower portions of the first welding seam and the second welding seam and right opposite to the welding seams. By means of the tool, rapid splicing can be achieved, the situation that if reverse deformation is not applied in welding, poor flatness is caused after welding, flatness needs to be corrected, and cost is increased is avoided, and splicing and welding reverse deformation can be achieved on the same tool together through the tool.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping equipment, and in particular relates to a three-piece plate welding anti-deformation fixing device. Background Art

[0002] The shape of the three-piece side panel parts is irregular. If anti-deformation is not applied during welding, poor flatness will occur after welding, and flatness calibration is required, which increases costs. The market needs a tool that can realize splicing and welding anti-deformation on the same tool to improve work efficiency.

[0003] Publication No. CN115519200A discloses a method for preventing deformation of nozzles during high-temperature brazing, which belongs to the field of thermal insulation technology of solid rocket engines. The method includes: accurately measuring the outer surface of the inner wall of the part and the inner surface of the outer wall to obtain the surface size; putting the inner wall on the tooling mold, applying red lead powder solution on the outer surface of the inner wall, and then test-fitting the outer wall to confirm the area where the inner and outer walls do not fit; removing the outer wall, and cutting the outer wall along the generatrix direction in the area where the inner and outer walls do not fit with an angle grinder; fitting the cut outer wall onto the inner wall, removing excess outer wall residue or adding new panels; welding the cut outer wall with TIG or electron beam; removing the outer wall, and manually grinding the welding seam of the inner surface of the outer wall; fitting the polished outer wall onto the inner wall, and using TIG welding to seal the inner and outer walls; and axially covering the outer surface of the outer wall with multiple annular steel belts. The present invention can ensure that the tube with a sandwich structure will not wrinkle or twist under high-temperature brazing, thereby improving the production quality of the product. However, the application cannot weld certain types of panels and has low efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a three-piece plate welding anti-deformation fixing device in view of the deficiencies of the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A three-piece welding anti-deformation fixing device is provided, comprising: a positioning column and a base plate, and a hydraulic pressure rod arranged at the edge of the base plate; the base plate is arranged according to the shape of the three-piece plate, the positioning columns are respectively arranged at the edges of the three-piece plate, the three-piece plate is provided with a first weld and a second weld, a pair of pressure strips are respectively arranged on both sides of the upper part of the first weld and the second weld, and a first bracket and a second bracket are arranged at the lower part of the first weld and the second weld opposite to the weld.

[0007] Preferably, a first positioning column and a second positioning column are respectively provided at both ends of the bottom plate, and a third positioning column and a fourth positioning column are provided in the middle of the bottom plate.

[0008] Preferably, two pairs of hydraulic pressure rods are symmetrically arranged in the middle of the bottom plate, and the hydraulic pressure rods are matched with the pressure strips respectively.

[0009] Preferably, a first pressure strip and a second pressure strip are symmetrically arranged on both sides of the upper portion of the first weld, and a third pressure strip and a fourth pressure strip are symmetrically arranged on both sides of the upper portion of the second weld.

[0010] Preferably, the distance between the first pressure strip and the second pressure strip is greater than the width of the first bracket, and the distance between the third pressure strip and the fourth pressure strip is greater than the width of the second bracket.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model can realize fast splicing through this tooling. If anti-deformation is not applied during welding, poor flatness will be caused after welding, and flatness calibration is required, which increases costs. Through this tooling, splicing and welding anti-deformation can be realized on the same tooling.

[0013] The utility model realizes the basic positioning of three-piece panels through positioning columns. After splicing, the pressure strips on both sides of the weld are pressed downward by the hydraulic press. After being pressed to a certain extent, the panels on both sides will be deformed downward. Then, the robot is used for welding. After welding, the hydraulic press works upward, and the panels on both sides will be deformed upward, so that the welding force will offset the anti-deformation force before welding, thereby achieving the anti-deformation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 : Schematic diagram of the structure of the three-piece plate welding anti-deformation fixing device of the utility model;

[0016] 1. Bottom plate; 2. First panel; 3. Second panel; 4. Third panel; 5. First weld; 6. First bracket; 7. Second weld; 8. Second bracket; 9. First fixing column; 10. Second fixing column; 11. Third fixing column; 12. Fourth fixing column; 13. First pressure strip; 14. Second pressure strip; 15. Third pressure strip; 16. Fourth pressure strip; 17. Hydraulic pressure rod. DETAILED DESCRIPTION

[0017] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0018] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0019] Embodiment 1: A three-piece welding anti-deformation fixing device is provided, comprising: a bottom plate 1, and a positioning column and a hydraulic pressure rod arranged at the edge of the bottom plate 1; the bottom plate 1 is arranged along the shape of the three-piece plate; the three-piece plate comprises a first piece plate 2, a second piece plate 3 and a third piece plate 4, a first weld 5 is arranged between the first piece plate 2 and the second piece plate 3, a second weld 7 is arranged between the second piece plate 3 and the third piece plate 4, the positioning columns are arranged at the edges of the three-piece plate, a pair of pressure strips are arranged at both sides of the upper part of the first weld 5 and the second weld 7, and a first bracket 6 and a second bracket 8 are arranged at the lower part of the first weld 5 and the second weld 7 opposite to the weld. The first bracket 6 and the second bracket 8 respectively keep the three-piece plate at a relative distance from the bottom plate 1, and a certain bending space can be reserved for the three-piece plate.

[0020] Preferably, a first positioning column 9 and a second positioning column 12 are respectively provided at both ends of the bottom plate 1, and a third positioning column 10 and a fourth positioning column 11 are respectively provided in the middle of the bottom plate. The positioning columns are respectively arranged in pairs, which greatly improves the positioning effect.

[0021] Preferably, two pairs of hydraulic pressure rods 17 are symmetrically arranged in the middle of the base plate 1, and the hydraulic pressure rods 17 are matched with the pressure strips respectively. The hydraulic pressure rods 17 are symmetrically arranged on both sides of the first weld 5 and the second weld 7, so as to provide pressure to the first weld 5 and the second weld 7.

[0022] Preferably, a first pressure strip 13 and a second pressure strip 14 are symmetrically arranged on both sides of the upper portion of the first weld 5, and a third pressure strip 15 and a fourth pressure strip 16 are symmetrically arranged on both sides of the upper portion of the second weld 7. The first pressure strip 13 and the second pressure strip 14 can make the first panel 2 and the second panel 3 on both sides of the first weld 5 bend downward, and the third pressure strip 15 and the fourth pressure strip 16 can make the second panel 3 and the third panel 4 on both sides of the second weld 7 bend downward.

[0023] Preferably, the spacing between the first pressure strip 13 and the second pressure strip 14 is greater than the width of the first bracket 6, and the spacing between the third pressure strip 15 and the fourth pressure strip 16 is greater than the width of the second bracket 8, which is conducive to bending the three-piece panel downward to resist welding deformation force.

[0024] The utility model can realize fast splicing through this tooling. If anti-deformation is not applied during welding, poor flatness will be caused after welding, and flatness calibration is required, which increases costs. Through this tooling, splicing and welding anti-deformation can be realized on the same tooling.

[0025] The utility model realizes the basic positioning of three-piece panels through positioning columns. After splicing, the pressure strips on both sides of the weld are pressed downward by the hydraulic press. After being pressed to a certain extent, the panels on both sides will be deformed downward. Then, the robot is used for welding. After welding, the hydraulic press works upward, and the panels on both sides will be deformed upward, so that the welding force will offset the anti-deformation force before welding, thereby achieving the anti-deformation effect.

[0026] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim. Finally, it should be noted that the above embodiments are only used to illustrate the preferred embodiments of the utility model and are not limiting. Other modifications or equivalent substitutions made by ordinary technicians in this field to the technical solution of the utility model should be included in the scope of the claims of the utility model as long as they do not deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A three-piece plate welding anti-deformation fixing device, characterized in that: include: Positioning columns and a base plate, and a hydraulic pressure rod arranged at the edge of the base plate; The bottom plate is arranged according to the shape of the three-piece panel, the positioning columns are respectively arranged on the edges of the three-piece panel, the three-piece panel is provided with a first weld and a second weld, a pair of pressure strips are respectively arranged on both sides of the upper part of the first weld and the second weld, and a first bracket and a second bracket are arranged at the lower part of the first weld and the second weld opposite to the weld.

2. The three-piece plate welding anti-deformation fixing device according to claim 1 is characterized in that: The two ends of the bottom plate are respectively provided with a first positioning column and a second positioning column, and the middle part of the bottom plate is provided with a third positioning column and a fourth positioning column.

3. The three-piece plate welding anti-deformation fixing device according to claim 1 is characterized in that: Two pairs of hydraulic pressure rods are symmetrically arranged in the middle of the bottom plate, and the hydraulic pressure rods are matched with the pressure strips respectively.

4. The three-piece plate welding anti-deformation fixing device according to claim 1 is characterized in that: A first pressure strip and a second pressure strip are symmetrically arranged on both sides of the upper portion of the first weld, and a third pressure strip and a fourth pressure strip are symmetrically arranged on both sides of the upper portion of the second weld.

5. The three-piece plate welding anti-deformation fixing device according to claim 4 is characterized in that: The distance between the first pressure strip and the second pressure strip is greater than the width of the first bracket, and the distance between the third pressure strip and the fourth pressure strip is greater than the width of the second bracket.

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