Alternating current pulse type spot welding machine

Abstract

The utility model discloses an alternating current pulse type spot welding machine which comprises a placing table and an alternating current pulse spot welding machine body, a welding head is connected to the alternating current pulse spot welding machine body, bottom plates are fixedly connected to the bottom side of the left end and the bottom side of the right end of the placing table respectively, and first sliding grooves are formed in the ends, away from the placing table, of the two bottom plates respectively. First sliding seats are slidably arranged in the two first sliding grooves, a first screw rod is in threaded connection with one first sliding seat, the first screw rod is rotationally connected with the bottom plate, a first motor is installed on the bottom plate corresponding to the first screw rod, and the output end of the first motor is fixedly connected with the side end of the first screw rod; spot welding can be conveniently carried out on different positions of the welding part, the welding head can be conveniently adjusted to a proper angle for spot welding according to welding requirements, and the welding head can be conveniently and evenly spot-welded around the periphery of the bottom of the cylindrical or tubular welding part.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse spot welding machines, and more specifically, to an AC pulse spot welding machine. Background Art

[0002] Spot welding is one of the most commonly used welding processes in modern manufacturing. It is widely used in aviation, aerospace, sporting goods, jewelry, golf heads, medical equipment, aluminum alloy dentures, instruments, electronics, mechanical processing, automobiles and other industries. It is especially used for patching holes in gold and silver jewelry, spot welding seams and welding of cosmetic tools. When welding parts, people usually use AC pulse spot welding machines for spot welding.

[0003] After searching, the utility model patent with Chinese application number CN202322214489.X discloses a pulse spot welding machine, which includes: a placement base plate, a placement component and a limit component fixedly connected to the top of the placement base plate, and the limit component is used to limit the position of the welded parts. The spot welding of the welded parts is achieved through the cooperation between the placement base plate, the placement component, the limit component, the welding component, the cleaning component and the recycling box.

[0004] When welding the welded parts, the distance between the welded parts and the welding head is adjusted by placing the components, which is not convenient for adjusting the position of the welding head and spot welding at different positions of the welded parts. In addition, the angles between the two welded parts that need to be welded together are different. When spot welding, the welding head needs to be adjusted to a corresponding angle. However, the existing AC pulse spot welding machine is not convenient for adjusting the angle of the welding head accordingly, which reduces the practicality of its use. When it is necessary to spot weld the bottom of a vertically placed cylindrical or tubular welded part, it is not convenient to make the welding head evenly spot weld around the bottom of the cylindrical or tubular welded part. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the problems existing in the prior art, the utility model provides an AC pulse spot welding machine to solve the technical problems mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an AC pulse spot welding machine, comprising a placing table and an AC pulse spot welding machine, a welding head is connected to the AC pulse spot welding machine, a bottom plate is fixedly connected to the bottom side of the left end and the bottom side of the right end of the placing table, a first slide groove is arranged at one end of the two bottom plates away from the placing table, a first slide seat is slidably arranged inside the two first slide grooves, a first screw rod is threadedly connected to one of the first slide seats, the first screw rod is rotatably connected to the bottom plate, a first motor is installed on the bottom plate corresponding to the first screw rod, and the output end of the first motor is connected to the first screw rod. The side ends of the rod are fixedly connected, and a U-shaped frame is fixedly connected to the two first slide seats, a translation mechanism is arranged on the U-shaped frame, a rotation mechanism is connected to the translation mechanism, and two first electric cylinders are fixedly connected to the rotation mechanism, and the AC pulse spot welding machine is installed at the bottom ends of the two first electric cylinders, and an angle adjustment mechanism for adjusting the angle of the welding head is installed at the bottom end of the AC pulse spot welding machine, so as to facilitate spot welding at different positions on the weldment, and to facilitate adjusting the welding head to a suitable angle for spot welding according to welding requirements, so as to facilitate uniform spot welding of the welding head around the bottom of the cylindrical or tubular weldment.

[0009] The utility model is further configured as follows: the translation mechanism includes a second motor, a second slide groove is provided at the internal top end of the U-shaped frame, a second slide seat is slidingly provided inside the second slide groove, a second screw rod is connected to the internal thread of the second slide seat, the second screw rod is rotatably connected to the U-shaped frame, the second motor is installed on the U-shaped frame, and the output end of the second motor is fixedly connected to the side end of the second screw rod, so as to facilitate the adjustment of the lateral position of the AC pulse spot welding machine and the welding head.

[0010] The utility model is further configured such that a limiting groove is provided at a side end of the second slide groove, a limiting block is provided inside the limiting groove for sliding, and the limiting block is fixedly connected to the second slide seat to ensure that the second slide seat slides stably inside the second slide groove.

[0011] The utility model is further configured as follows: the rotating mechanism includes a fixed box and a third motor, the fixed box is fixedly mounted on the bottom end of the second slide, the bottom end of the fixed box is rotatably connected to a circular plate, the third motor is mounted inside the fixed box, the output end of the third motor is fixedly connected to the top end of the circular plate, a third slide groove is provided at the bottom end of the circular plate, a third slide groove is slidingly provided inside the third slide groove, a second electric cylinder is fixedly connected inside the third slide groove, the other end of the second electric cylinder is fixedly connected to the side end of the third slide, the bottom end of the third slide is fixedly connected to a connecting plate, the bottom end of the connecting plate is fixedly connected to the top ends of the two first electric cylinders, so as to facilitate the adjustment of the distance between the welding head and the central axis of the circular plate and to drive the welding head to rotate.

[0012] The utility model is further configured that two support rods are slidably provided on the third slide seat, and the two support rods are fixedly connected to the circular plate to ensure that the third slide seat slides stably inside the third slide groove.

[0013] The utility model is further configured such that a laser lamp is vertically installed at the middle position of the bottom end of the circular plate to facilitate determination of the center position of the circular plate.

[0014] The utility model is further configured such that the angle adjustment mechanism includes a connecting seat, the connecting seat is fixedly connected to the AC pulse spot welding machine, the welding head is rotatably connected to the connecting seat, and a fourth motor is installed on the connecting seat to drive the welding head to rotate, so as to facilitate adjusting the angle of the welding head.

[0015] The utility model is further configured such that a collecting box is placed on the side end of the placing table, and a U-shaped baffle is fixedly connected to the outer side of the top end of the placing table, so as to facilitate the collection of impurities such as iron filings cleaned on the placing table.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides an AC pulse spot welding machine with the following features:

[0018] Beneficial effects:

[0019] 1. The first motor drives the first screw to rotate, and the rotation of the first screw causes the two first slides, the U-shaped frame, the translation mechanism, the rotation mechanism, the AC pulse spot welder and the welding head to move forward and backward. The translation mechanism is convenient for driving the rotation mechanism, the AC pulse spot welder and the welding head to move horizontally, so that the AC pulse spot welder and the welding head can be adjusted to the corresponding positions on the weldment, so as to facilitate spot welding at different positions on the weldment.

[0020] 2. The rotating mechanism can be used to drive the AC pulse spot welding machine and the welding head to rotate and adjust the direction of the welding head. The angle adjustment mechanism can be used to adjust the longitudinal inclination angle of the welding head. The welding head can be adjusted to a suitable angle for spot welding according to welding requirements.

[0021] 3. When spot welding is required for the bottom of a vertically placed cylindrical or tubular weldment, the first motor drives the first screw to rotate. The rotation of the first screw causes the two first slides, the U-shaped frame, the translation mechanism, the rotation mechanism, the AC pulse spot welder and the welding head to move forward and backward. The translation mechanism is convenient for driving the rotation mechanism, the AC pulse spot welder and the welding head to move horizontally, and the rotation mechanism is moved to the top of the cylindrical or tubular weldment. The angle of the welding head is adjusted by the angle adjustment mechanism, and the welding head is moved to a suitable height by the first electric cylinder. At the same time, the welding head is adjusted to the position where spot welding is required by the rotation mechanism, and the bottom position of the vertically placed cylindrical and tubular weldments is spot welded by the welding head. At the same time, the welding head is driven by the rotation mechanism to rotate around the vertically placed cylindrical and tubular weldments and perform multi-point spot welding, so that the welding head can be evenly spot welded around the bottom of the cylindrical or tubular weldment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of an AC pulse spot welding machine in the utility model;

[0023] Figure 2 This is a rear view structural diagram of an AC pulse spot welding machine in the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the connection between the U-shaped frame and the translation mechanism in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating mechanism in the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the rotating mechanism in the utility model when viewed from bottom.

[0027] In the figure: 1. placement table; 2. AC pulse spot welding machine; 3. welding head; 4. bottom plate; 5. first slide; 6. first slide seat; 7. first screw; 8. first motor; 9. U-shaped frame; 10. first electric cylinder; 11. second motor; 12. second slide; 13. second slide seat; 14. second screw; 15. limit groove; 16. limit block; 17. fixing box; 18. third motor; 19. round plate; 20. third slide; 21. third slide seat; 22. second electric cylinder; 23. connecting plate; 24. support rod; 25. laser light; 26. connecting seat; 27. fourth motor; 28. collection box; 29. ​​U-shaped baffle. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] See also Figure 1-5 An AC pulse spot welding machine comprises a placing table 1 and an AC pulse spot welding machine 2. A collecting box 28 is placed on the side end of the placing table 1. A U-shaped baffle 29 is fixedly connected to the outer side of the top of the placing table 1. The U-shaped baffle 29 prevents impurities such as iron filings on the placing table 1 from falling from other surfaces of the placing table 1. Impurities such as iron filings on the placing table 1 fall from the side not blocked by the U-shaped baffle 29 to the inside of the collecting box 28, which is convenient for cleaning and collecting impurities such as iron filings on the placing table 1. A welding head 3 is connected to the AC pulse spot welding machine 2. Bottom plates 4 are fixedly connected to the bottom sides of the left end and the right end of the placing table 1. The ends of the two bottom plates 4 away from the placing table 1 are each provided with a first chute 5. The insides of the two first slide grooves 5 are both slidably provided with first slide seats 6, a first screw rod 7 is threadedly connected to one of the first slide seats 6, the first screw rod 7 is rotatably connected to the base plate 4, a first motor 8 is installed on the base plate 4 corresponding to the first screw rod 7, the output end of the first motor 8 is fixedly connected to the side end of the first screw rod 7, a U-shaped frame 9 is fixedly connected to the two first slide seats 6, a translation mechanism is arranged on the U-shaped frame 9, a rotation mechanism is connected to the translation mechanism, two first electric cylinders 10 are fixedly connected to the rotation mechanism, the AC pulse spot welding machine 2 is installed at the bottom ends of the two first electric cylinders 10, and an angle adjustment mechanism for adjusting the angle of the welding head 3 is installed at the bottom end of the AC pulse spot welding machine 2.

[0032] In this embodiment, the first motor 8 drives the first screw rod 7 to rotate, and the rotation of the first screw rod 7 causes the two first slide seats 6, the U-shaped frame 9, the translation mechanism, the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move forward and backward. The translation mechanism is convenient for driving the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move horizontally, so that the AC pulse spot welder 2 and the welding head 3 can be adjusted to the corresponding positions on the weldment. The heights of the AC pulse spot welder 2 and the welding head 3 are adjusted by the two first electric cylinders 10, so as to facilitate spot welding at different positions on the weldment. The rotation mechanism is convenient for driving the AC pulse spot welder 2 and the welding head 3 to rotate and adjust the direction of the welding head 3. The angle adjustment mechanism is convenient for adjusting the longitudinal inclination angle of the welding head 3. According to the welding requirements, the welding head 3 can be adjusted to a suitable angle for spot welding. When the bottom of a vertically placed cylindrical or tubular weldment needs to be welded, When spot welding is performed, the first motor 8 drives the first screw 7 to rotate. The rotation of the first screw 7 causes the two first slides 6, the U-shaped frame 9, the translation mechanism, the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move forward and backward. The translation mechanism is convenient for driving the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move horizontally, and the rotation mechanism is moved to the top of the cylindrical or tubular weldment. The angle of the welding head 3 is adjusted by the angle adjustment mechanism. At the same time, the welding head 3 is moved to a suitable height by the first electric cylinder 10, and the welding head 3 is adjusted to the position where spot welding is required by the rotation mechanism. The bottom position of the vertically placed cylindrical and tubular weldments is spot welded by the welding head 3. At the same time, the welding head 3 is driven by the rotation mechanism to rotate around the vertically placed cylindrical and tubular weldments and perform multi-point spot welding, so that the welding head 3 can be evenly spot welded around the bottom of the cylindrical or tubular weldment.

[0033] See also Figure 3 The translation mechanism includes a second motor 11, a second slide groove 12 is provided at the top inner side of the U-shaped frame 9, a second slide seat 13 is provided inside the second slide groove 12 for sliding, a second screw rod 14 is connected to the inner thread of the second slide seat 13, the second screw rod 14 is rotatably connected to the U-shaped frame 9, the second motor 11 is installed on the U-shaped frame 9, the output end of the second motor 11 is fixedly connected to the side end of the second screw rod 14, a limiting groove 15 is provided at the side end of the second slide groove 12, a limiting block 16 is provided inside the limiting groove 15 for sliding, and the limiting block 16 is fixedly connected to the second slide seat 13 to ensure that the second slide seat 13 slides stably inside the second slide groove 12.

[0034] In this embodiment, the second motor 11 drives the second screw 14 to rotate, and the rotation of the second screw 14 causes the second slide 13 to slide inside the second slide groove 12. The second slide 13 drives the rotating mechanism, the AC pulse spot welder 2 and the welding head 3 to move, so as to facilitate the adjustment of the position of the AC pulse spot welder 2 and the welding head 3 in the lateral direction.

[0035] See also Figure 4and Figure 5 The rotating mechanism includes a fixed box 17 and a third motor 18. The fixed box 17 is fixedly mounted on the bottom end of the second slide 13. The bottom end of the fixed box 17 is rotatably connected to a circular plate 19. The third motor 18 is mounted inside the fixed box 17. The output end of the third motor 18 is fixedly connected to the top end of the circular plate 19. A third slide groove 20 is provided at the bottom end of the circular plate 19. A third slide seat 21 is slidably provided inside the third slide groove 20. A second electric cylinder 22 is fixedly connected inside the third slide groove 20. The other end of the second electric cylinder 22 is fixedly connected to the side end of the third slide seat 21. The third slide 21 is fixedly connected, and a connecting plate 23 is fixedly connected to the bottom end of the third slide 21. The bottom end of the connecting plate 23 is fixedly connected to the top ends of the two first electric cylinders 10. Two support rods 24 are slidably arranged on the third slide 21. Both support rods 24 are fixedly connected to the circular plate 19 to ensure that the third slide 21 slides stably inside the third slide groove 20. A laser lamp 25 is vertically installed in the middle position of the bottom end of the circular plate 19 to facilitate determining the center position of the circular plate 19 and aligning the center axis of the circular plate 19 with the center axis of the cylindrical and tubular welded parts that need to be placed vertically.

[0036] In this embodiment, the third slide 21 is driven to slide inside the third slide groove 20 by the second electric cylinder 22, and the third slide 21 drives the AC pulse spot welder 2 and the welding head 3 to move, and adjusts the distance between the welding head 3 and the central axis of the circular plate 19. The circular plate 19, the AC pulse spot welder 2 and the welding head 3 are driven to rotate by the third motor 18, so that the welding head 3 can be rotated around the vertically placed cylindrical or tubular weldment, so as to facilitate spot welding on all sides of the vertically placed cylindrical or tubular weldment.

[0037] See also Figure 1 and Figure 2 The angle adjustment mechanism includes a connecting seat 26, which is fixedly connected to the AC pulse spot welding machine 2, and the welding head 3 is rotatably connected to the connecting seat 26. A fourth motor 27 is installed on the connecting seat 26 to drive the welding head 3 to rotate, so as to facilitate adjusting the angle of the welding head 3.

[0038] In this embodiment, the fourth motor 27 drives the welding head 3 to rotate, so as to adjust the tilt angle of the welding head 3 in the vertical direction.

[0039] In summary, when the overall equipment is in use:

[0040] The first motor 8 drives the first screw 7 to rotate, and the rotation of the first screw 7 causes the two first slides 6, the U-shaped frame 9, the translation mechanism, the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move forward and backward, and adjust the front-back position of the welding head 3. The second motor 11 drives the second screw 14 to rotate, and the second screw 14 rotates to cause the second slide 13 to slide inside the second slide groove 12. The second slide 13 drives the rotation mechanism, the AC pulse spot welder 2 and the welding head 3 to move, and adjust the front-back position of the welding head 3. The second electric cylinder 22 drives the third slide 21 in the third slide groove 20 By sliding internally, the third slide seat 21 drives the AC pulse spot welder 2 and the welding head 3 to move, and adjusts the distance between the welding head 3 and the central axis of the circular plate 19. The circular plate 19, the AC pulse spot welder 2 and the welding head 3 are driven to rotate by the third motor 18. The AC pulse spot welder 2 and the welding head 3 are driven to move up and down by the two first electric cylinders 10, so as to facilitate the adjustment of the height of the welding head 3. The welding head 3 is driven to rotate by the fourth motor 27, so as to facilitate the adjustment of the inclination angle of the welding head 3. When welding the welding head 3, the welding head 3 is adjusted to a suitable position and angle, and spot welding is performed through the welding head 3.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An AC pulse spot welding machine, comprising a placement table (1) and an AC pulse spot welding machine (2), wherein a welding head (3) is connected to the AC pulse spot welding machine (2), and wherein: The bottom sides of the left and right ends of the placement platform (1) are fixedly connected to a bottom plate (4), the ends of the two bottom plates (4) away from the placement platform (1) are each provided with a first slide groove (5), the interiors of the two first slide grooves (5) are each provided with a first slide seat (6) for sliding, a first screw rod (7) is threadedly connected to one of the first slide seats (6), the first screw rod (7) is rotatably connected to the bottom plate (4), a first motor (8) is installed on the bottom plate (4) corresponding to the first screw rod (7), and the first motor The output end of (8) is fixedly connected to the side end of the first screw rod (7), the two first slide seats (6) are fixedly connected to a U-shaped frame (9), a translation mechanism is arranged on the U-shaped frame (9), a rotation mechanism is connected to the translation mechanism, two first electric cylinders (10) are fixedly connected to the rotation mechanism, the AC pulse spot welding machine (2) is installed at the bottom ends of the two first electric cylinders (10), and an angle adjustment mechanism for adjusting the angle of the welding head (3) is installed at the bottom end of the AC pulse spot welding machine (2).

2. The AC pulse spot welding machine according to claim 1, characterized in that: The translation mechanism comprises a second motor (11), a second slide groove (12) is arranged at the inner top end of the U-shaped frame (9), a second slide seat (13) is slidably arranged inside the second slide groove (12), a second screw rod (14) is threadedly connected to the inner part of the second slide seat (13), the second screw rod (14) is rotatably connected to the U-shaped frame (9), the second motor (11) is mounted on the U-shaped frame (9), and the output end of the second motor (11) is fixedly connected to the side end of the second screw rod (14).

3. The AC pulse spot welding machine according to claim 2, characterized in that: A limiting groove (15) is arranged at the side end of the second sliding groove (12), a limiting block (16) is slidably arranged inside the limiting groove (15), and the limiting block (16) is fixedly connected to the second sliding seat (13).

4. The AC pulse spot welding machine according to claim 2, characterized in that: The rotating mechanism comprises a fixed box (17) and a third motor (18), wherein the fixed box (17) is fixedly mounted on the bottom end of the second slide seat (13), the bottom end of the fixed box (17) is rotatably connected to a circular plate (19), the third motor (18) is mounted inside the fixed box (17), the output end of the third motor (18) is fixedly connected to the top end of the circular plate (19), the bottom end of the circular plate (19) is provided with a third slide groove (20), the inside of the third slide groove (20) is slidably provided with a third slide seat (21), the inside of the third slide groove (20) is fixedly connected to a second electric cylinder (22), the other end of the second electric cylinder (22) is fixedly connected to a side end of the third slide seat (21), the bottom end of the third slide seat (21) is fixedly connected to a connecting plate (23), the bottom end of the connecting plate (23) is fixedly connected to the top ends of the two first electric cylinders (10).

5. The AC pulse spot welding machine according to claim 4, characterized in that: Two support rods (24) are slidably arranged on the third sliding seat (21), and the two support rods (24) are fixedly connected to the circular plate (19).

6. The AC pulse spot welding machine according to claim 4, characterized in that: A laser lamp (25) is vertically mounted at the middle position of the bottom end of the circular plate (19).

7. The AC pulse spot welding machine according to claim 1, characterized in that: The angle adjustment mechanism comprises a connecting seat (26), the connecting seat (26) is fixedly connected to the AC pulse spot welding machine (2), the welding head (3) is rotatably connected to the connecting seat (26), and a fourth motor (27) is installed on the connecting seat (26) for driving the welding head (3) to rotate.

8. The AC pulse spot welding machine according to claim 1, characterized in that: A collecting box (28) is placed on the side end of the placement platform (1), and a U-shaped baffle (29) is fixedly connected to the outer side of the top end of the placement platform (1).

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