Sliding type laser welding clamp suitable for pleasant-boat-shaped curved-surface ultra-thin plate

Abstract

The invention relates to a sliding type laser welding clamp suitable for a pleasure-boat-shaped curved-surface ultra-thin plate. The sliding type laser welding clamp comprises a foundation base, a fixed end block, a built-in clamping plate and an external clamping plate. The foundation base comprises a base main board, a side window, a first outer groove, a first inner groove, a second inner groove and a second outer groove. Two fixed end blocks are arranged up and down, and the inner sides of the fixed end blocks are provided with boat-shaped curved surfaces; the two built-in clamping plates are arranged up and down, and each built-in clamping plate comprises an inner plate body and a conformal curved surface; the two external clamping plates are arranged up and down, and each external clamping plate comprises an outer plate body, a through window and an outer welding groove; according to the welding fixture, different welding requirements can be met through two welding modes; and the internal clamping plate and the external clamping plate are arranged in a sliding manner, so that the to-be-welded material is conveniently clamped and dismounted. According to the welding clamp, the left position and the right position of two to-be-welded materials can be aligned, and accurate welding is achieved.

Description

Technical Field

[0001] This application relates to the field of fixture equipment technology, specifically to a sliding laser welding fixture suitable for ultra-thin curved plates. Background Technology

[0002] Today, the miniaturization and lightweight deployment mechanism of ultra-large space facilities has become a development trend in the aerospace manufacturing industry, and thin-walled welded structural components have become the preferred choice for constructing ultra-large space facilities. For welding low-stiffness ultra-thin plates, laser welding technology is increasingly widely used due to its high energy density, small heat-affected zone, and high weld quality. However, low-stiffness ultra-thin plates suffer from problems such as low self-constraint, sensitivity to heat input, easy deformation, and poor gap adaptability, requiring extremely high assembly standards, making welding fixtures particularly important. Existing laser welding fixtures are not suitable for welding curved ultra-thin structures, exhibiting drawbacks such as large assembly gaps, difficulty in installation and disassembly, and low production efficiency.

[0003] Therefore, there is a need to design a laser welding fixture that can be easily loaded and unloaded and is adaptable to welding curved materials. Summary of the Invention

[0004] A sliding laser welding fixture suitable for ultra-thin curved plates includes a base, a fixed end block, an internal clamping plate, and an external clamping plate.

[0005] The base includes a base main board and a side window located on the right side of the base main board. The base main board has a first outer groove and a first inner groove in front of the side window and a second inner groove and a second outer groove in front of the side window. The first inner groove and the second inner groove are slidably provided with inner sliding blocks, and the first outer groove and the second outer groove are slidably provided with outer sliding blocks.

[0006] Two fixed end blocks are provided, one in front and one in back. One fixed end block is provided in front and one in back on the right side of the main board of the base. The inner side of the fixed end block is provided with a boat-shaped curved surface. The fixed end block is provided with a positioning pin hole, and a spring pin that pops outward is provided in the positioning pin hole.

[0007] Two built-in clamps are provided, one on top of the other. Each built-in clamp includes an inner plate body. The inner end face of the inner plate body has conformal curved surfaces that fit the corresponding boat-shaped curved surfaces. The outer end face of the inner plate body has an operating blind groove. The operating blind groove has internal welding holes along the left and right directions. The left front and rear sides of the built-in clamps are connected to corresponding inner sliding blocks. The pair of built-in clamps are clamped and fixed by a clamping hole system. The clamping hole system includes a countersunk hole on the right side of one inner plate body and a screw hole on the corresponding position of the other inner plate body. The internal welding holes are arranged along the left and right directions, and there are at least two internal welding holes.

[0008] Two external clamping plates are provided, one on top of the other. Each external clamping plate includes an outer plate body and a through window disposed on the outer plate body. The outer plate body has external welding grooves at the front and rear. The left front and rear sides of the external clamping plates are connected to corresponding external sliding blocks. The inner sliding block has an internal sliding screw hole. The left front and rear sides of the inner plate body have corresponding inner plate insertion holes. Bolts that are screwed into the internal sliding screw holes are installed in the inner plate insertion holes. The outer sliding block has an external sliding screw hole. The left front and rear sides of the outer plate body have corresponding outer plate insertion holes. Bolts that are screwed into the external sliding screw holes are installed in the outer plate insertion holes. The right front and rear sides of the external clamping plates each have an internal and external connection upper hole. The right side of the inner clamping plate has an internal and external connection lower hole at the corresponding position. The front and rear sides of the external clamping plates each have a fixed external connection upper hole. The fixed end block has a fixed external connection lower hole at the corresponding position.

[0009] The beneficial effects of this invention are as follows:

[0010] This invention can achieve different welding requirements through two welding modes. It clamps two curved materials between a conformal curved surface and a boat-shaped curved surface by clamping two built-in clamping plates. Furthermore, it fixes a single curved material by clamping the two built-in clamping plates, and then fixes the flat material by using an external clamping plate. This allows for alignment of the left and right positions of the two materials to be welded, achieving precise welding. Simultaneously, both the built-in and external clamping plates can be slidably configured, facilitating the clamping and removal of the materials to be welded. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. The orientation marks such as "front" and "rear" in the drawings are the inherent orientation of the fixing device itself, not the three-dimensional coordinate orientation of its location in space.

[0012] Figure 1 This is a schematic diagram of one embodiment of the laser welding fixture.

[0013] Figure 2 This is a top view of one embodiment of the laser welding fixture.

[0014] Figure 3 yes Figure 2 Isometric sectional view of section AA.

[0015] Figure 4 yes Figure 2 Isometric sectional view of section BB in the middle.

[0016] Figure 5 This is a schematic diagram of one embodiment of the base.

[0017] Figure 6 This is a schematic diagram of one embodiment of a fixed end block.

[0018] Figure 7 This is a top view of one embodiment of the built-in clamp.

[0019] Figure 8 yes Figure 7 An isometric sectional view of one embodiment of the CC section.

[0020] Figure 9 This is a schematic diagram of one embodiment of the base, fixed end block, and built-in clamping plate.

[0021] Figure 10 A schematic diagram of one embodiment of the external clamp.

[0022] Figure 11 This is a schematic diagram of welding two curved surface materials (a).

[0023] Figure 12 This is a schematic diagram of welding curved material a and flat material b.

[0024] In the picture:

[0025] 1. Base; 11. Base mainboard; 12. Side window; 13. First outer groove; 14. First inner groove; 15. Second inner groove; 16. Second outer groove; 17. Inner sliding block; 18. Outer sliding block;

[0026] 2. Fixed end block; 21. Boat-shaped curved surface; 22. Locating pin hole; 23. Lower hole for external connection;

[0027] 3. Built-in clamping plate; 31. Inner plate body; 32. Conforming curved surface; 33. Operating blind groove; 34. Inner welding hole; 35. Inner plate insertion hole; 36. Clamping hole system; 361. Countersunk head hole; 362. Screw lower hole; 37. Inner and outer connection lower hole.

[0028] 4. External clamping plate; 41. Outer plate body; 42. Through window; 43. External welding groove; 44. Outer plate insertion hole; 45. Internal and external connection upper hole; 46. Fixed external connection upper hole;

[0029] a. Curved surface material, b. Flat surface material. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0031] Example 1:

[0032] This embodiment provides a sliding laser welding fixture suitable for ultra-thin curved plates, including a base 1, a fixed end block 2, an internal clamping plate 3, and an external clamping plate 4.

[0033] The base 1 includes a base main board 11 and a side window 12 located on the right side of the base main board 11. The base main board 11 has a first outer groove 13 and a first inner groove 14 arranged from front to back in front of the side window 12. The base main board 11 has a second inner groove 15 and a second outer groove 16 arranged from front to back in front of the side window 12. The first inner groove 14 and the second inner groove 15 are each slidably provided with an inner sliding block 17, and the first outer groove 13 and the second outer groove 16 are each slidably provided with an outer sliding block 18.

[0034] Two fixed end blocks 2 are provided, one in front and one in back. One fixed end block 2 is provided on the front and one in back on the right side of the base main board 11. The inner side of the fixed end block 2 is provided with a boat-shaped curved surface 21. The fixed end block 2 is provided with a positioning pin hole 22, and a spring pin that pops outward is provided in the positioning pin hole 22.

[0035] Two built-in clamping plates 3 are provided, one above the other. Each built-in clamping plate 3 includes an inner plate body 31. The inner end face of the inner plate body 31 is provided with conformal curved surfaces 32 that fit the corresponding boat-shaped curved surfaces 21. The outer end face of the inner plate body 31 is provided with an operating blind groove 33. The operating blind groove 33 is provided with an inner welding hole 34 along the left and right directions. The left front and rear sides of the built-in clamping plate 3 are connected to the corresponding inner sliding blocks 17. The pair of built-in clamping plates 3 are clamped and fixed by a clamping hole system 36. The clamping hole system 36 includes a countersunk hole 361 provided on the right side of any inner plate body 31 and a screw lower hole 362 provided at the corresponding position of the other inner plate body 31. The inner welding holes 34 are arranged along the left and right directions, and there are at least two inner welding holes 34.

[0036] Two external clamping plates 4 are provided, one above the other. Each external clamping plate 4 includes an outer plate body 41 and a through window 42 disposed on the outer plate body 41. The outer plate body 41 is provided with outer welding grooves 43 at the front and rear respectively. The left front and rear sides of the external clamping plate 4 are respectively connected to the corresponding outer sliding blocks 18. The inner sliding block 17 is provided with an inner sliding screw hole. The left front and rear sides of the inner plate body 31 are respectively provided with corresponding inner plate insertion holes 35. The inner plate insertion holes 35 are fitted with screws that are connected to the inner sliding screw holes. Bolts; the outer sliding block 18 is provided with an outer sliding screw hole, and the outer plate body 41 is provided with corresponding outer plate insertion holes 44 on the front and rear of the left side, and bolts that are screwed into the outer sliding screw holes are installed in the outer plate insertion holes 44; the outer clamping plate 4 is provided with an inner and outer connecting upper hole 45 on the front and rear of the right side, and the inner clamping plate 3 is provided with an inner and outer connecting lower hole 37 on the corresponding position of the right side; the outer clamping plate 4 is provided with a fixed outer connecting upper hole 46 on the front and rear, and the fixed end block 2 is provided with a fixed outer connecting lower hole 23 at the corresponding position.

[0037] Based on the above technical solution, the specific method of using the laser welding clamp described in this case is as follows:

[0038] Method 1: Weld two curved surface materials a:

[0039] As per the instruction manual Figure 11 As shown:

[0040] S1.1, two curved surface materials a are fixed:

[0041] Place the two curved materials a, one above the other, on the outer surface of the fixed end block 2, and then slide the corresponding built-in clamping plate 3 over.

[0042] The pair of built-in clamping plates 3 are clamped through the clamping hole system 36; specifically, the bolt is passed through the countersunk head hole 361 and then screwed into the bolt lower hole 362. At this time, the two curved materials a are clamped by the conformal curved surface 32 and the boat-shaped curved surface 21.

[0043] S1.2, Welding:

[0044] Two curved materials a are welded together through the inner welding hole 34.

[0045] Method 2: Weld a curved surface material a and a flat surface material b:

[0046] As per the instruction manual Figure 12 As shown:

[0047] S2.1, single curved surface material a is fixed:

[0048] First, place a curved material a on the outside of the fixed block 2, and then slide the two built-in clamps 3 over;

[0049] The pair of built-in clamping plates 3 are clamped through the clamping hole system 36 to complete the fixation of the curved material a;

[0050] S2.2, Fixed plate material b:

[0051] Place the flat material b on the corresponding built-in clamping plate 3, and slide the corresponding external clamping plate 4 over.

[0052] The external clamping plate 4 and the internal clamping plate 3 are relatively fixed by the upper internal and external connecting hole 45 and the lower internal and external connecting hole 37.

[0053] The external clamping plate 4 and the internal clamping plate 3 are fixed to the fixed end block 2 and the base base 1 by means of the upper hole 46 and the lower hole 23 of the external connection;

[0054] S2.3, Welding:

[0055] The single curved surface material and the flat plate material b are welded together through the outer welding groove 43.

[0056] It should be noted that the positioning pin hole 22 is used to align two materials to be welded. After aligning the first material to be welded with the spring pin in the positioning pin hole, the second material to be welded is placed and aligned with the spring pin, thus achieving left-right alignment of the two materials to be welded.

[0057] In summary, this invention can achieve different welding requirements through two welding modes. It clamps two curved materials between a conformal curved surface and a boat-shaped curved surface by clamping two built-in clamping plates. Furthermore, it fixes a single curved material by clamping the two built-in clamping plates, and then fixes the flat material by using an external clamping plate. This allows for alignment of the left and right positions of the two materials to be welded, achieving precise welding. Simultaneously, both the built-in and external clamping plates can be slidably configured, facilitating the clamping and removal of the materials to be welded.

[0058] It should be noted that the technical features in embodiments 1 and 2 above can be combined arbitrarily, and the resulting technical solutions all fall within the protection scope of this application. Furthermore, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding laser welding fixture suitable for ultra-thin curved plates, characterized in that: Includes a base (1), a fixed end block (2), an internal clamping plate (3), and an external clamping plate (4); The base (1) includes a base main board (11) and a side window (12) located on the right side of the base main board (11). The base main board (11) is provided with a first outer groove (13) and a first inner groove (14) from front to back in front of the side window (12). The base main board (11) is provided with a second inner groove (15) and a second outer groove (16) from front to back in front of the side window (12). The first inner groove (14) and the second inner groove (15) are respectively provided with inner sliding blocks (17). The first outer groove (13) and the second outer groove (16) are respectively provided with outer sliding blocks (18). Two fixed end blocks (2) are provided, one in front and one behind. One fixed end block (2) is provided on the front and one behind the right side of the base main board (11). The inner side of the fixed end block (2) is provided with a boat-shaped curved surface (21). The built-in clamps (3) are provided in two, one on top and one on the bottom. The built-in clamps (3) include an inner plate body (31). The inner plate body (31) has a conformal curved surface (32) that fits the corresponding boat-shaped curved surface (21) on the front and back of the inner end face. The outer end face of the inner plate body (31) is provided with an operation blind groove (33). The operation blind groove (33) is provided with an inner welding hole (34) along the left and right directions. The left front and back of the built-in clamps (3) are connected to the corresponding inner sliding block (17). The external clamps (4) are provided in two places, one above the other. The external clamps (4) include an outer plate body (41) and a through window (42) set on the outer plate body (41). The outer plate body (41) is provided with an outer welding groove (43) at the front and rear respectively. The left front and rear sides of the external clamps (4) are connected to the corresponding outer sliding blocks (18) respectively.

2. The sliding laser welding fixture according to claim 1, characterized in that: The fixed end block (2) is provided with a positioning pin hole (22), and a spring pin that pops outward is provided in the positioning pin hole (22).

3. The sliding laser welding fixture according to claim 2, characterized in that: The inner sliding block (17) is provided with an inner sliding screw hole, and the inner plate body (31) is provided with corresponding inner plate insertion holes (35) on the front and rear sides of the left side, and a bolt that is screwed into the inner sliding screw hole is installed in the inner plate insertion hole (35); The outer sliding block (18) is provided with an outer sliding screw hole, and the outer plate body (41) is provided with corresponding outer plate insertion holes (44) on the front and rear sides of the left side, and a bolt that is screwed into the outer sliding screw hole is installed in the outer plate insertion hole (44).

4. The sliding laser welding fixture according to claim 3, characterized in that: A pair of built-in clamping plates (3) are clamped and fixed by a clamping hole system (36), which includes a countersunk hole (361) on the right side of any inner plate body (31) and a screw hole (362) on the corresponding position of the other inner plate body (31).

5. A sliding laser welding fixture suitable for ultra-thin curved plates according to claim 4, characterized in that: The external clamping plate (4) has an upper hole (45) for connecting the inner and outer sides at the front and rear respectively, and the internal clamping plate (3) has a lower hole (37) for connecting the inner and outer sides at the corresponding position on the right side. The external clamp (4) is provided with upper holes (46) for external connection at the front and rear respectively, and the fixed end block (2) is provided with lower holes (23) for external connection at the corresponding position.

6. The sliding laser welding fixture according to claim 5, characterized in that: The inner welding hole (34) is provided in the left-right direction.

7. The sliding laser welding fixture according to claim 6, characterized in that: The inner welding hole (34) is provided with at least two.

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