Ring material clamping and spot welding mechanism

Abstract

The utility model provides a ring material clamping and spot welding mechanism, and belongs to the technical field of machinery. The problems that after a large-size circular ring is rolled and formed, the shape is unstable, deformation is severe in each batch, an opening is large, workers need to be used up for full-force pressing, labor intensity is large, operation is difficult, two ports are spliced irregularly, and production efficiency is not high are solved. The ring material clamping and spot welding mechanism comprises a rack, a bottom plate used for containing objects is arranged at the bottom of the rack, a box used for supporting and fixing the rack is arranged below the bottom plate, an air cylinder assembly is arranged at the top of the rack, and an air cylinder fixing plate connected with the rack and used for fixing the air cylinder assembly is arranged at the bottom of the air cylinder assembly. The utility model has the advantage that the stability and the safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and particularly relates to a ring material clamping spot welding mechanism. Background Art

[0002] In the welding production process of large-sized circular ring products, the argon arc welding process is usually used to spot weld the two ends of the circular ring gap after the plate is rolled, and then shielded welding is performed. Because the large-sized circular ring has a large deformation after rolling, there is a misalignment between the two ends of the ring, so it needs to be aligned before spot welding.

[0003] Typically, the existing process involves two workers first aligning the ends of the ring weld gap, followed by another worker manually spot welding them before proceeding to the next step. Because large rings are unstable after being rolled, each batch exhibits significant deformation and a large opening, requiring workers to exert all their strength to press. This results in high labor intensity, difficult operation, uneven splicing of the two ends, and low production efficiency. Summary of the Invention

[0004] The purpose of the utility model is to provide a ring material clamping spot welding mechanism to solve the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A ring material clamping spot welding mechanism, characterized in that it includes a frame, a bottom plate for placing items is provided at the bottom of the frame, a box for supporting and fixing the frame is provided below the bottom plate, a cylinder assembly is provided on the top of the frame, and a cylinder fixing plate connected to the frame and fixing the cylinder assembly is provided at the bottom of the cylinder assembly;

[0006] The cylinder assembly includes a cylinder and guide rods installed on both sides of the cylinder. The bottom of the cylinder is located in the frame and is connected to the upper mold fixing plate, and the upper mold fixing plate and the cylinder are directly provided with a cylinder connecting plate for connecting. The bottom of the guide rods are connected to the upper mold fixing plate by bolt 1. An upper mold for fixing the annular coil is provided at the bottom of the upper mold fixing plate, and the upper mold is connected to the upper mold fixing plate by bolt 2.

[0007] A lower die corresponding to the upper die is installed on the base plate, and the lower die is fixedly mounted on the base plate by bolt three. Two backrests are provided on the lower die toward the frame for limiting the position of the annular coil, and the two backrests are respectively provided on the left and right sides of the lower die. An arc-starting plate fixing seat for fixing the lower die is provided on the other side of the lower die, and the backrest and the arc-starting plate fixing seat are installed on the lower die by bolt four.

[0008] In the above-mentioned ring material clamping spot welding mechanism, two cylinder fixing plate brackets are provided at the bottom of the cylinder fixing plate, and the cylinder fixing plate brackets are connected to the cylinder fixing plate by bolts five, and one side of the cylinder fixing plate brackets is fixed against the frame.

[0009] In the above-mentioned ring material clamping spot welding mechanism, the inner walls of the upper die and the lower die are in an arc-shaped structure.

[0010] In the above-mentioned ring material clamping spot welding mechanism, a ring-shaped coil is placed between the upper die and the lower die.

[0011] In the above-mentioned ring material clamping spot welding mechanism, a cylinder hole is provided on the cylinder fixing plate for facilitating cylinder installation, and guide holes for guide rod installation are provided on both sides of the cylinder hole, and a copper sleeve is provided on the inner wall of the guide hole.

[0012] Compared with the existing technology, this ring material clamping spot welding mechanism:

[0013] 1. The cylinder automatically moves downward to press the ring, so that the opening and gap of the ring fit tightly without manual effort;

[0014] 2. The rear end of the mechanism is equipped with a positioning backer. When the ring is manually pushed to the backing position, the two end faces of the ring will automatically align without misalignment.

[0015] 3. The cylinder pushes and presses down continuously to ensure the stability of spot welding and avoid welding deviation, perforation and other phenomena during the spot welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional view of the ring material clamping spot welding mechanism.

[0017] Figure 2 It is a side sectional view of the ring material clamping spot welding mechanism.

[0018] Figure 3 This is a schematic diagram of the cylinder fixing plate of the ring material clamping spot welding mechanism.

[0019] Figure 4 This is a schematic diagram of the backing of the ring material clamping spot welding mechanism.

[0020] In the figure, 1. frame; 2. base plate; 3. box; 4. cylinder assembly; 5. cylinder fixing plate; 6. guide rod; 7. upper die fixing plate; 8. cylinder connecting plate; 9. bolt one; 10. upper die; 11. bolt two; 12. lower die; 13. bolt three; 14. backrest; 15. arc-starting plate fixing seat; 16. bolt four; 17. cylinder fixing plate bracket; 18. bolt five; 19. cylinder hole; 20. guide hole; 21. copper sleeve; 22. cylinder. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the ring material clamping spot welding mechanism includes a frame 1, a bottom plate 2 for placing items is provided at the bottom of the frame 1, a box 3 for supporting and fixing the frame 1 is provided below the bottom plate 2, a cylinder assembly 4 is provided on the top of the frame 1, and a cylinder fixing plate 5 connected to the frame 1 and fixing the cylinder assembly 4 is provided at the bottom of the cylinder assembly 4. The cylinder assembly 4 is installed at the front end of the cylinder fixing plate 5 to facilitate the operation of the cylinder assembly 4;

[0023] The cylinder assembly 4 includes a cylinder 22 and guide rods 6 installed on both sides of the cylinder 22. The cylinder 22 pushes and presses down to maintain its pressing force, ensuring that the gap between the annular coils is tightly fitted, making the spot welding process more stable. The bottom of the cylinder 22 is located in the frame 1 and is connected to the upper mold fixing plate 7, and the upper mold fixing plate 7 and the cylinder 22 are directly provided with a cylinder connecting plate 8 for connecting. The bottom of the guide rods 6 are connected to the upper mold fixing plate 7 by bolts 9. An upper mold 10 for fixing the annular coil is provided at the bottom of the upper mold fixing plate 7, and the upper mold 10 is connected to the upper mold fixing plate 7 by bolts 11.

[0024] A lower die 12 corresponding to the upper die 10 is installed on the base plate 2, and the lower die 12 is fixedly installed on the base plate 2 by bolt three 13. Two backrests 14 for limiting the annular coil are provided on the lower die 12 toward the frame 1. The two backrests 14 are respectively arranged on the left and right sides of the lower die 12. When the annular coil is placed between the upper die 10 and the lower die 12, the coil is manually pushed to the position of the backrest 14 to align the two ends of the coil to prevent the offset of one side of the coil from affecting the welding during the spot welding process. At this time, the upper cylinder 22 pushes down to tighten the gap at the circular ring of the coil; then manual spot welding is performed at the gaps at both ends. After completion, the upper cylinder 22 contracts, and an arc-starting plate fixing seat 15 for fixing the lower die 12 is provided on the other side of the lower die 12. The backrest 14 and the arc-starting plate fixing seat 15 are installed on the lower die 12 by bolt four 16.

[0025] To be more specific, two cylinder fixing plate brackets 17 are provided at the bottom of the cylinder fixing plate 5, and the cylinder fixing plate brackets 17 are connected to the cylinder fixing plate 5 by bolts 18. One side of the cylinder fixing plate bracket 17 is fixed against the frame 1. By placing the cylinder fixing plate bracket 17, the front end portion of the cylinder fixing plate 5 is stabilized to prevent the front end portion from tilting and collapsing due to excessive weight.

[0026] To elaborate further, the inner walls of the upper mold 10 and the lower mold 12 are arc-shaped structures, which facilitate the fixation of the annular material.

[0027] In further detail, an annular coil is placed between the upper mold 10 and the lower mold 12.

[0028] In further detail, a cylinder hole 19 is opened on the cylinder fixing plate 5 for facilitating the installation of the cylinder 22, and guide holes 20 for installing the guide rod 6 are provided on both sides of the cylinder hole 19, and a copper sleeve 21 is provided on the inner wall of the guide hole 20.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0030] Although this document frequently uses terms such as frame 1, base plate 2, housing 3, cylinder assembly 4, cylinder fixing plate 5, guide rod 6, upper die fixing plate 7, cylinder connecting plate 8, bolt 1 9, upper die 10, bolt 2 11, lower die 12, bolt 3 13, backrest 14, arc-starting plate fixing seat 15, bolt 4 16, cylinder fixing plate bracket 17, bolt 5 18, cylinder hole 19, guide hole 20, copper sleeve 21, and cylinder 22, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A ring material clamping spot welding mechanism, characterized in that: The invention comprises a frame (1), wherein a bottom plate (2) for placing articles is provided at the bottom of the frame (1), a box (3) for supporting and fixing the frame (1) is provided below the bottom plate (2), a cylinder assembly (4) is provided at the top of the frame (1), and a cylinder fixing plate (5) connected to the frame (1) and fixing the cylinder assembly (4) is provided at the bottom of the cylinder assembly (4); The cylinder assembly (4) includes a cylinder (22) and guide rods (6) installed on both sides of the cylinder (22); the bottom of the cylinder (22) is located in the frame (1) and is connected to an upper mold fixing plate (7); and the upper mold fixing plate (7) and the cylinder (22) are directly provided with a cylinder connecting plate (8) for connecting; the bottom of the guide rods (6) are connected to the upper mold fixing plate (7) by bolt 1 (9); an upper mold (10) for fixing the annular coil is provided at the bottom of the upper mold fixing plate (7); the upper mold (10) is connected to the upper mold fixing plate (7) by bolt 2 (11); A lower die (12) corresponding to the upper die (10) is installed on the base plate (2), and the lower die (12) is fixedly installed on the base plate (2) by bolt three (13). The lower die (12) is provided with two backrests (14) for limiting the position of the annular coil in the direction of the frame (1), and the two backrests (14) are respectively provided on the left and right sides of the lower die (12). An arc-starting plate fixing seat (15) for fixing the lower die (12) is provided on the other side of the lower die (12), and the backrests (14) and the arc-starting plate fixing seat (15) are installed on the lower die (12) by bolt four (16).

2. A ring material clamping spot welding mechanism according to claim 1, characterized in that: Two cylinder fixing plate brackets (17) are provided at the bottom of the cylinder fixing plate (5), and the cylinder fixing plate brackets (17) are connected to the cylinder fixing plate (5) via bolts (18), and one side of the cylinder fixing plate bracket (17) is fixed against the frame (1).

3. A ring material clamping spot welding mechanism according to claim 1, characterized in that: The inner walls of the upper mold (10) and the lower mold (12) are arc-shaped structures.

4. A ring material clamping spot welding mechanism according to claim 1, characterized in that: An annular coil is placed between the upper die (10) and the lower die (12).

5. A ring material clamping spot welding mechanism according to claim 1, characterized in that: The cylinder fixing plate (5) is provided with a cylinder hole (19) for facilitating the installation of the cylinder (22), and both sides of the cylinder hole (19) are provided with guide holes (20) for installing the guide rod (6), and a copper sleeve (21) is provided on the inner wall of the guide hole (20).

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