Distribution cavity laser welding tool

Abstract

The utility model relates to a laser welding tool for a distribution cavity. The laser welding tool comprises a tool base, the rotary chuck is arranged on the tool base and is used for limiting the hydrogen pipe joint; the positioning and clamping device is rotatably connected to the side, close to the rotary chuck, of the tailstock and comprises a supporting plate, a tailstock is fixed to the supporting plate, a containing space is formed between the tailstock and the supporting plate, and the hydrogen distribution cavity can be contained in the containing space; and the tailstock is movably arranged on the tool base. According to the distribution cavity laser welding tool, the hydrogen distribution cavity and the hydrogen pipe connector can be preliminarily limited by the positioning and clamping device and the rotating chuck correspondingly, butt joint and clamping between the hydrogen distribution cavity and the hydrogen pipe connector can be completed through the displacement tailstock, and the hydrogen pipe connector and the hydrogen distribution cavity can be rotated by being matched with the rotating chuck; and the rotating requirements on the hydrogen distribution cavity and the hydrogen pipe joint during laser welding are met.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cavity welding tooling, in particular to a distribution cavity laser welding tooling. Background Art

[0002] Among the many new energy vehicles, fuel cell vehicles are considered to be an important direction for the sustainable development of the future automotive industry because of their advantages such as zero emissions, high efficiency, diversified fuel sources, and renewable energy. They are also an ideal solution to global energy problems and climate change.

[0003] The fuel cell needs hydrogen and oxygen as fuel for normal reaction and power generation. The distribution chamber is the fuel inlet distribution chamber of the fuel cell engine, which includes a hydrogen distribution chamber and a hydrogen pipe joint.

[0004] In the manufacture of the distribution chamber, it is necessary to weld the hydrogen distribution chamber and the hydrogen pipe joint. Since the tooling of the hydrogen distribution chamber does not have a special clamp, and the traditional welding tooling structure cannot perfectly adapt to the clamping of the hydrogen distribution chamber, during the operation, one worker is required to dock and press the hydrogen distribution chamber and the hydrogen pipe joint, while the other worker holds a welding gun to weld. For this reason, a distribution chamber laser welding tool is proposed. Utility Model Content

[0005] Based on the above description, the utility model provides a distribution cavity laser welding tool, which solves the technical problem that traditional welding tool equipment cannot adapt to the laser welding of the distribution cavity.

[0006] The utility model solves the above technical problems with the following technical solutions: a distribution cavity laser welding tool, comprising:

[0007] Tooling base;

[0008] A rotating chuck is arranged on the tooling base and is used to limit the position of the hydrogen pipe joint;

[0009] A positioning clamping device, which is rotatably connected to a side of the tailstock close to the rotary chuck, and includes a support plate, on which a tailstock is fixed, and a receiving space is formed between the tailstock and the support plate, so that the hydrogen distribution cavity can be received in the receiving space;

[0010] A tailstock, which is movably arranged on the tooling base;

[0011] After the positioning clamping device and the rotating chuck limit the hydrogen distribution cavity and the hydrogen pipe joint respectively, the tail seat is adjusted for displacement, thereby completing the docking and clamping between the hydrogen distribution cavity and the hydrogen pipe joint.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the front and rear sides of the support plate are both provided with expansion racks, and baffles are rotatably provided on the expansion racks. After the baffles rotate, the hydrogen distribution cavity can be confined between the baffles and the support plate.

[0014] Furthermore, a pre-opened hole is formed on the baffle bar, and a locking bolt is threadedly connected in the pre-opened hole to strengthen the locking of the hydrogen distribution chamber.

[0015] Furthermore, the front and rear sides of the support plate are integrally connected with side wing strips, and the distance between the two sets of side wing strips is equal to the width of the hydrogen distribution cavity, which is used to facilitate the alignment of the hydrogen distribution cavity and the hydrogen pipe joint.

[0016] Furthermore, arc-shaped edges are arranged on the two groups of side wing strips, and when the hydrogen distribution cavity is placed on the support plate, the arc-shaped edges play a guiding role in the placement of the hydrogen distribution cavity.

[0017] Furthermore, the rotary chuck includes a base, a chuck, a transmission and a motor 1, wherein the base is arranged on a tooling base, the transmission is arranged on the base, the motor 1 is arranged on one side of the transmission, and the chuck is arranged at the speed change end of the transmission, so that the motor 1 can drive the chuck and the hydrogen pipe joint to rotate through the transmission.

[0018] Furthermore, the rotary chuck also includes a cavity tube positioning clamping shaft, which is composed of a positioning disk and a clamping shaft. A clamping cavity is opened on the side of the positioning disk close to the tail stock to accommodate the hydrogen pipe joint. The rotary chuck is used to clamp the clamping shaft to reduce clamping damage to the hydrogen pipe joint.

[0019] Furthermore, a driving structure is provided on the tooling base for driving the tailstock to move linearly and allowing the positioning clamping device to move closer to or away from the rotating chuck.

[0020] Furthermore, the tailstock includes a transverse plate, a vertical plate and reinforcing ribs, wherein the transverse plate is movably arranged on the tooling base, the vertical plate is welded and fixed on the transverse plate, and the reinforcing ribs are arranged between the transverse plate and the vertical plate to limit deformation of the vertical plate.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0022] 1. In the distribution cavity laser welding fixture, the hydrogen distribution cavity and the hydrogen pipe joint can be initially limited by the positioning clamping device and the rotating chuck respectively, and the docking and clamping between the hydrogen distribution cavity and the hydrogen pipe joint can be completed by the displacement tailstock.

[0023] 2. The distribution chamber laser welding tool can rotate the hydrogen pipe joint and the hydrogen distribution chamber by using a rotating chuck to meet the rotation requirements of the hydrogen distribution chamber and the hydrogen pipe joint during laser welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a distribution cavity laser welding tool provided in an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the hydrogen distribution chamber and the hydrogen pipe joint after installation in the embodiment of the utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0027] Figure 4 for Figure 1 A partial enlarged schematic diagram of area A in the middle.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Hydrogen distribution chamber; 2. Hydrogen pipe joint; 3. Rotating chuck; 31. Base; 32. Chuck; 33. Transmission; 34. Motor 1; 35. Cavity tube positioning clamping shaft; 351. Positioning plate; 352. Clamping shaft; 4. Tail stock; 41. Horizontal plate; 42. Vertical plate; 43. Reinforcing rib; 5. Positioning clamping device; 51. Support plate; 52. Tail stock; 53. Extension frame; 54. Baffle bar; 55. Side wing bar; 56. Arc edge; 57. Locking bolt; 6. Driving structure; 61. Slide; 62. Fixed seat; 63. Motor 2; 64. Support seat; 65. Ball screw shaft; 66. Ball nut seat; 67. Side plate; 7. Tooling base. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-3 As shown, a distribution chamber laser welding tool in this embodiment is used to complete the docking and clamping between the hydrogen distribution chamber 1 and the hydrogen pipe joint 2, so that the clamped hydrogen distribution chamber 1 and the hydrogen pipe joint 2 can meet the laser welding requirements. The distribution chamber laser welding tool includes a tool base 7, a rotating chuck 3, a tail stock 4 and a positioning clamping device 5, wherein the positioning clamping device 5 is used to limit the hydrogen distribution chamber 1, and can be rotatably connected to the side of the tail stock 4 close to the rotating chuck 3, and the rotating chuck 3 is arranged on the tool base 7, and is used to clamp and rotate the hydrogen pipe joint 2. In addition, the tail stock 4 can be movably arranged on the tool base 7, so that the hydrogen distribution chamber 1 after being limited can be tightly attached to the hydrogen pipe joint 2 to complete the docking and clamping between the hydrogen distribution chamber 1 and the hydrogen pipe joint 2.

[0032] It should be noted that the tailstock 4 includes a transverse plate 41, a vertical plate 42 and a reinforcing rib 43, wherein the transverse plate 41 is movably arranged on the tooling base 7, the vertical plate 42 is welded and fixed on the transverse plate 41, and the reinforcing rib 43 is arranged between the transverse plate 41 and the vertical plate 42 to limit the deformation of the vertical plate 42.

[0033] During operation, after the hydrogen distribution chamber 1 and the hydrogen pipe joint 2 are initially limited by the positioning clamping device 5 and the rotating chuck 3 respectively, the tailstock 4 is displaced until the hydrogen distribution chamber 1 and the hydrogen pipe joint 2 after the initial limitation are docked and clamped tightly, and the rotating chuck 3 is used to rotate the hydrogen pipe joint 2 and the hydrogen distribution chamber 1 to realize the rotation of the hydrogen pipe joint 2 and the hydrogen distribution chamber 1, so as to meet the rotation requirement of the hydrogen distribution chamber 1 and the hydrogen pipe joint 2 during laser welding, and ensure that the subsequent laser welding robot can link the distribution chamber laser welding tooling to complete the welding.

[0034] First, in order to facilitate the understanding of the positioning clamping device 5, further description is given here. Figure 3 and 4 As shown, the positioning and clamping device 5 in this embodiment includes at least a support plate 51 and a tail frame 52, wherein an accommodation space is formed between the tail frame 52 and the support plate 51, and the accommodation space matches the size of the hydrogen distribution chamber 1, so that the hydrogen distribution chamber 1 can be accommodated in the accommodation space, and the hydrogen distribution chamber 1 is placed on the support plate 51.

[0035] It should be noted that the tail frame 52 is composed of a back plate, an upper plate and two sets of side plates. The back plate can be rotatably connected to the side of the tailstock 4 close to the rotary chuck 3 to meet the rotation requirement of the hydrogen distribution chamber 1 after the hydrogen distribution chamber 1 is limited. The back plate can provide a positioning reference and a blocking surface so that the hydrogen distribution chamber 1 can fit therewith and block and limit the hydrogen distribution chamber 1. The upper plate and the two sets of side plates respectively limit the upward movement and forward and backward movement of the hydrogen distribution chamber 1.

[0036] Furthermore, the positioning clamping device 5 also includes two groups of expansion frames 53 and two groups of baffles 54, wherein the expansion frames 53 are fixed on the front and rear sides of the support plate 51, and the two groups of baffles 54 are rotatably connected to the two groups of expansion frames 53. After the baffles 54 rotate, the baffles 54 limit the hydrogen distribution chamber 1 between the baffles 54 and the support plate 51.

[0037] It should be noted that the distance between the lower surface of the baffle 54 and the upper surface of the support plate 51 is equal to the height of the hydrogen distribution chamber 1 .

[0038] As a further explanation, a pre-opening hole is formed on the baffle bar 54 , and a locking bolt 57 is threadedly connected in the pre-opening hole to strengthen the locking of the hydrogen distribution chamber 1 .

[0039] In this way, the limiting process of the hydrogen distribution chamber 1 is to place the hydrogen distribution chamber 1 on the support plate 51, and then fit the hydrogen distribution chamber 1 with the tail frame 52, and then rotate the baffle 54. Finally, by rotating the locking bolt 57, the locking bolt 57 further locks the hydrogen distribution chamber 1, that is, complete the stable limiting of the hydrogen distribution chamber 1 to ensure the smooth completion of subsequent laser welding.

[0040] In addition, if Figure 4 As shown, the front and rear sides of the support plate 51 are integrally connected with side wing strips 55, and the distance between the two sets of side wing strips 55 is equal to the width of the hydrogen distribution chamber 1, which is used to facilitate the alignment of the hydrogen distribution chamber 1 and the hydrogen pipe connector 2 and limit the forward and backward movement of the hydrogen distribution chamber 1.

[0041] It should be noted that arc-shaped edges 56 are provided on both sets of side wing strips 55 . When the hydrogen distribution chamber 1 is placed on the support plate 51 , the arc-shaped edges 56 play a guiding role in the placement of the hydrogen distribution chamber 1 .

[0042] Secondly, the rotary chuck 3 is explained. As shown in the figure, the rotary chuck 3 includes a base 31, a chuck 32, a transmission 33 and a motor 34, wherein the base 31 is fixed on the tooling base 7 by bolts, the transmission 33 is fixed on the base 31 by bolts, the motor 34 is fixed on one side of the transmission 33 by bolts, and the chuck 32 is a prior art for clamping shaft components, which will not be elaborated here. It is mainly explained that the chuck 32 is assembled and arranged at the speed change end of the transmission 33, so that the motor 34 can drive the chuck 32 and the hydrogen pipe joint 2 to rotate through the transmission 33.

[0043] Taking into account that the hydrogen pipe connector 2 is hollow, and directly clamping the hydrogen pipe connector 2 is likely to cause damage to it, for this reason, a preferred solution is that in this embodiment, the rotary chuck 3 also includes a lumen positioning clamping shaft 35, and the lumen positioning clamping shaft 35 is composed of a positioning disk 351 and a clamping shaft 352. A clamping cavity is opened on the side of the positioning disk 351 close to the tail stock 4. The clamping cavity matches the size of the hydrogen pipe connector 2 and is used to accommodate the hydrogen pipe connector 2. The rotary chuck 3 is used to clamp the clamping shaft 352 to reduce clamping damage to the hydrogen pipe connector 2.

[0044] Finally, a driving structure 6 is disposed on the tooling base 7 to drive the tailstock 4 to move linearly and enable the positioning clamping device 5 to move closer to or away from the rotary chuck 3 .

[0045] In one embodiment, the driving structure 6 is a ball screw driving device. For ease of understanding, Figure 1-3As shown, the ball screw drive device includes a slide 61, a fixed seat 62, a second motor 63, a support seat 64, a ball screw shaft 65 and a ball nut seat 66, wherein the slide 61 is fixed on the tooling base 7, the fixed seat 62 and the support seat 64 are both fixed to the slide 61 by bolts, the second motor 63 is fixed to the left side of the fixed seat 62 by bolts, the ball screw shaft 65 is assembled at the output end of the second motor 63, and the ball nut seat 66 is assembled on the outside of the ball screw shaft 65.

[0046] It should be noted that two sets of side plates 67 are fixed at the bottom of the tailstock 4 , and the distance between the two sets of side plates 67 is equal to the width of the slide 61 , so as to ensure the linear movement of the tailstock 4 .

[0047] So, the whole process is as follows:

[0048] In the first step, the cavity in the lumen positioning clamping shaft 35 is used to accommodate the hydrogen pipe connector 2, and the chuck 32 is used to clamp the lumen positioning clamping shaft 35;

[0049] The second step is to place the hydrogen distribution chamber 1 on the support plate 51, and then fit the hydrogen distribution chamber 1 to the tail frame 52, rotate the stop bar 54, and then further lock the hydrogen distribution chamber 1 by rotating the locking bolt 57;

[0050] The third step is to start the second motor 63, the ball screw shaft 65 rotates, and the ball nut seat 66 drives the tailstock 4, the positioning clamping device 5 and the hydrogen distribution chamber 1 limited by the positioning clamping device 5 to move until the hydrogen distribution chamber 1 is close to the hydrogen pipe joint 2, completing the docking and clamping between the hydrogen distribution chamber 1 and the hydrogen pipe joint 2.

[0051] After docking and clamping, the motor 34 is started to drive the hydrogen distribution chamber 1 to rotate closely against the hydrogen pipe joint 2, thereby linking the laser welding robot to complete the welding between the hydrogen distribution chamber 1 and the hydrogen pipe joint 2.

[0052] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A distribution cavity laser welding tool, characterized in that: include: Tool base (7); A rotating chuck (3) is arranged on a tooling base (7) and is used to limit the position of the hydrogen pipe joint (2); A positioning clamping device (5) is rotatably connected to a side of the tailstock (4) close to the rotary chuck (3), and comprises a support plate (51), a tailstock (52) is fixed on the support plate (51), and a receiving space is formed between the tailstock (52) and the support plate (51), so that the hydrogen distribution chamber (1) can be received in the receiving space; A tailstock (4) movably arranged on a tooling base (7); After the positioning clamping device (5) and the rotating chuck (3) limit the positions of the hydrogen distribution chamber (1) and the hydrogen pipe joint (2) respectively, the tailstock (4) is adjusted for displacement, thereby completing the docking and clamping between the hydrogen distribution chamber (1) and the hydrogen pipe joint (2).

2. A distribution cavity laser welding tool according to claim 1, characterized in that: The support plate (51) is provided with an expansion frame (53) on both the front and rear sides. The expansion frame (53) is rotatably provided with a baffle (54). After the baffle (54) rotates, the hydrogen distribution chamber (1) can be confined between the baffle (54) and the support plate (51).

3. A distribution cavity laser welding tool according to claim 2, characterized in that: The baffle (54) is provided with a pre-opened hole, in which a locking bolt (57) is threadedly connected for strengthening the locking of the hydrogen distribution chamber (1).

4. A distribution cavity laser welding tool according to claim 3, characterized in that: The front and rear sides of the support plate (51) are integrally connected with side wing strips (55), and the distance between the two sets of side wing strips (55) is equal to the width of the hydrogen distribution cavity (1), so as to facilitate the alignment of the hydrogen distribution cavity (1) and the hydrogen pipe joint (2).

5. A distribution cavity laser welding tool according to claim 4, characterized in that: The two groups of side wing strips (55) are both provided with arc-shaped edges (56). When the hydrogen distribution chamber (1) is placed on the support plate (51), the arc-shaped edges (56) play a guiding role in the placement of the hydrogen distribution chamber (1).

6. The distribution cavity laser welding tool according to claim 1, characterized in that: The rotary chuck (3) comprises a pedestal (31), a chuck (32), a transmission (33) and a motor (34), wherein the pedestal (31) is arranged on a tooling base (7), the transmission (33) is arranged on the pedestal (31), the motor (34) is arranged on one side of the transmission (33), and the chuck (32) is arranged at the speed change end of the transmission (33), so that the motor (34) can drive the chuck (32) and the hydrogen pipe joint (2) to rotate through the transmission (33).

7. A distribution cavity laser welding tool according to claim 6, characterized in that: The rotary chuck (3) further comprises a lumen positioning clamping shaft (35), which is composed of a positioning disk (351) and a clamping shaft (352). A clamping cavity is provided on a side of the positioning disk (351) close to the tailstock (4) for accommodating a hydrogen pipe joint (2). The rotary chuck (3) is used for clamping the clamping shaft (352) to reduce clamping damage to the hydrogen pipe joint (2).

8. The distribution cavity laser welding tool according to claim 1, characterized in that: The tooling base (7) is provided with a driving structure (6) for driving the tailstock (4) to move linearly and allowing the positioning clamping device (5) to move closer to or farther from the rotating chuck (3).

9. The distribution cavity laser welding tool according to claim 1, characterized in that: The tailstock (4) comprises a transverse plate (41), a vertical plate (42) and a reinforcing rib (43), wherein the transverse plate (41) is movably arranged on a tooling base (7), the vertical plate (42) is welded and fixed on the transverse plate (41), and the reinforcing rib (43) is arranged between the transverse plate (41) and the vertical plate (42) to limit deformation of the vertical plate (42).

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