Three-axis servo double-gun special machine for carbon dioxide protection welding

Abstract

The utility model relates to the technical field of mechanical welding, and discloses a three-axis servo double-gun special machine for carbon dioxide protection welding, which comprises a base support, the upper surface of the base support is fixedly connected with a mounting plate, the upper surface of the mounting plate is fixedly connected with a first servo motor and a fixing block respectively, the output end of the first servo motor is fixedly connected with a screw rod, and the output end of the screw rod is fixedly connected with a second servo motor. The end face of the lead screw is rotationally connected with the surface of the fixed block, and the surface of the lead screw is in threaded connection with a movable block. According to the three-axis servo double-gun special machine for carbon dioxide gas shielded welding, a first servo motor drives a lead screw to rotate, a moving block moves to drive a moving seat to move, a carbon dioxide gas shielded welding gun can be driven to move in the X-axis direction, a second servo motor drives a gear to rotate, a rack drives a long mounting plate to move, the carbon dioxide gas shielded welding gun can be driven to move in the Y-axis direction, and a third servo motor drives the lead screw to rotate; and the concentric-square-shaped moving block moves to drive the carbon dioxide arc welding gun to move in the Z-axis direction, so that the carbon dioxide arc welding gun can automatically move in the three-axis direction, and the welding requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical welding, and more specifically to a three-axis servo double-gun double-protection welding machine. Background Art

[0002] Carbon dioxide shielded welding has the advantages of low cost, high production efficiency, small welding deformation, concentrated heat, strong anti-rust ability, simple and easy operation, etc. It is one of the important technologies in automobile body welding process and is widely used in the automobile manufacturing industry.

[0003] Traditional carbon dioxide shielded welding is divided into two methods: manual welding and robot welding. Manual welding has the advantages of low cost, small site occupation, and flexible operation, but manual welding has low production efficiency, poor precision, high dependence on personnel, and a harsh operating environment that is harmful to the human body. Robotic welding has the advantages of high production efficiency, good product quality, high product consistency, and convenient production scheduling, but the cost of investing in production robots for robot welding is high and it occupies a large area. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a three-axis servo double-gun double-protection welding machine to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical scheme: a three-axis servo double-gun two-protection welding machine, comprising a base bracket, the upper surface of the base bracket is fixedly connected with a mounting plate, the upper surface of the mounting plate is respectively fixedly connected with a first servo motor and a fixed block, the output end of the first servo motor is fixedly connected with a screw rod, the end face of the screw rod is rotatably connected with the surface of the fixed block, the surface of the screw rod is threadedly connected with a moving block, the upper surface of the moving block is fixedly connected with a moving seat, the lower surface of the moving seat is fixedly connected with a slider, the upper surface of the mounting plate is fixedly connected with a slide rail, the slider is slidably installed on the upper surface of the slide rail, the screw rod rotates, the moving block can drive the moving seat to move, the upper surface of the moving seat is fixedly connected with an L-shaped seat, the surface of the L-shaped seat is provided with a limiting groove, the inner wall of the limiting groove is slidably connected with a limiting strip, and the surface of the limiting strip is fixedly connected with an installation long plate, the lower surface of the installation long plate is fixedly connected with a rack, the lower surface of the moving seat is fixedly connected with a second servo motor, the output end of the second servo motor is fixedly connected with a gear meshing with the rack surface, and the gear drives the rack to move to drive the moving seat to move;

[0006] The end face of the mounting long plate is fixedly connected with a circular vertical plate, the upper surface of the circular vertical plate is fixedly connected with a third servo motor, the output end of the third servo motor extends to the interior of the circular vertical plate and is fixedly connected with a lead screw, the bottom end of the lead screw is rotatably connected with the inner bottom wall of the circular vertical plate, the surface of the lead screw is threadedly connected with a circular moving block, the surface of the circular moving block overlaps with the inner wall of the circular vertical plate, the surface of the circular moving block is fixedly connected with a mounting block, and the upper surface of the mounting block is detachably mounted with a second welding gun.

[0007] The solution is further that the base bracket includes two vertical brackets and a horizontal bracket, the horizontal bracket is fixedly installed between the two vertical brackets, the upper surface of the vertical bracket is provided with a mounting groove, the inner wall of the mounting groove is slidably connected with a T-shaped support bar, the upper surface of the T-shaped support bar is fixedly connected to the lower surface of the mounting plate, the surface of the vertical bracket is fixedly connected with a concave block, the surface of the concave block is provided with a threaded hole, a T-shaped rod is installed inside the threaded hole, the end surface of the T-shaped rod is fixedly connected with a threaded rod adapted to the threaded hole, and the threaded rod is screwed into the threaded hole The position of the T-shaped rod can be fixed, and the end face of the T-shaped rod is rotatably connected with a plug-in block, a side of the plug-in block close to the T-shaped rod is fixedly connected to a limiting rod, and the opposite surfaces of the plug-in block and the concave block are fixedly connected with a spring, and a through opening connected to the inside of the installation groove is provided on the side of the vertical bracket facing the plug-in block, and the surface of the plug-in block overlaps with the inner wall of the through opening, and a plurality of positioning grooves matched with the plug-in block are provided on the surface of the T-shaped support strip, and the surface of the plug-in block overlaps with the inner wall of the positioning groove, and the plug-in block can fix the position of the T-shaped support strip.

[0008] A further solution is that a first concave mounting seat is fixedly connected to the upper surface of the mounting block, and a second concave mounting seat is fixedly connected to the upper surface of the first concave mounting seat by bolts, and the first concave mounting seat and the second concave mounting seat clamp the two-guard welding gun to facilitate disassembly, assembly and maintenance of the two-guard welding gun.

[0009] Technical effects and advantages of the utility model:

[0010] 1. This three-axis servo double-gun two-guard welding machine, the first servo motor drives the lead screw to rotate, the moving block moves to drive the moving seat to move, and can drive the two-guard welding gun to move in the X-axis direction, the second servo motor drives the gear to rotate, the rack drives the mounting long plate to move, and can drive the two-guard welding gun to move in the Y-axis direction, the third servo motor drives the lead screw to rotate, the circular moving block moves, and can drive the two-guard welding gun to move in the Z-axis direction, so that the two-guard welding gun can automatically move in three axes to meet the welding needs. Compared with the original manual welding, it is more convenient to use, and compared with the original robot welding, it can meet the work of multi-axis welding, and production is more convenient.

[0011] 2. This three-axis servo double-gun two-guard welding machine pulls the T-rod to drive the plug-in block out of the plug-in slot, and rotates the T-rod, the threaded rod is screwed into the threaded hole, the position of the T-rod is fixed, and then the position of the plug-in block is fixed. At this time, the position of the T-shaped support bar can be moved to adjust the installation height of the mounting plate, the T-rod is reversed to screw the threaded rod out of the threaded hole, and under the elastic force of the spring, the plug-in block is inserted into the new positioning slot to fix the position of the T-shaped support bar, so that the basic height of the two-guard welding gun can be appropriately adjusted according to the welding conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle.

[0013] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle.

[0015] Figure 4 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0016] Figure 5 It is a schematic diagram of the side section structure of the vertical bracket of the utility model.

[0017] The accompanying drawings are marked as: 1 base bracket, 2 mounting plate, 3 first servo motor, 4 fixed block, 5 lead screw, 6 moving block, 7 moving seat, 8 slider, 9 slide rail, 10 L-shaped seat, 11 limit bar, 12 mounting long plate, 13 rack, 14 second servo motor, 15 gear, 16 circular vertical plate, 17 third servo motor, 18 lead screw, 19 circular moving block, 20 mounting block, 21 second welding gun, 22 vertical bracket, 23 horizontal frame, 24 T-shaped support bar, 25 concave block, 26 T-shaped rod, 27 threaded rod, 28 plug-in block, 29 limit rod, 30 spring, 31 first concave mounting seat, 32 second concave mounting seat. DETAILED DESCRIPTION

[0018] A three-axis servo double-gun double-protection welding machine, refer to Figure 1-5 , including a base bracket 1, the base bracket 1 includes two vertical brackets 22 and a horizontal frame 23, the horizontal frame 23 is fixedly installed between the two vertical brackets 22, the upper surface of the base bracket 1 is fixedly connected with a mounting plate 2, the upper surface of the vertical bracket 22 is provided with a mounting groove, the inner wall of the mounting groove is slidably connected with a T-shaped support bar 24, the upper surface of the T-shaped support bar 24 is fixedly connected to the lower surface of the mounting plate 2, the surface of the vertical bracket 22 is fixedly connected with a concave block 25, the surface of the concave block 25 is provided with a threaded hole, and a T-shaped rod 26 is installed inside the threaded hole.

[0019] The end face of the T-shaped rod 26 is fixedly connected with a threaded rod 27 adapted to the threaded hole, and the end face of the T-shaped rod 26 is rotatably connected with a plug-in block 28. The plug-in block 28 is fixedly connected to a limiting rod 29 on a side close to the T-shaped rod 26. The plug-in block 28 and the opposite side of the concave block 25 are fixedly connected with a spring 30. The vertical bracket 22 is provided with a through opening connected to the inside of the installation groove on a side facing the plug-in block 28. The surface of the plug-in block 28 overlaps the inner wall of the through opening. The surface of the T-shaped support bar 24 is provided with a plurality of positioning grooves adapted to the plug-in block 28, and the surface of the plug-in block 28 overlaps the inner wall of the positioning groove.

[0020] The upper surfaces of the mounting plate 2 are respectively fixedly connected with the first servo motor 3 and the fixed block 4, the output end of the first servo motor 3 is fixedly connected with the lead screw 5, the end face of the lead screw 5 is rotatably connected to the surface of the fixed block 4, the surface of the lead screw 5 is threadedly connected with a moving block 6, the upper surface of the moving block 6 is fixedly connected with a moving seat 7, the lower surface of the moving seat 7 is fixedly connected with a slider 8, the upper surface of the mounting plate 2 is fixedly connected with a slide rail 9, the slider 8 is slidably installed on the upper surface of the slide rail 9, the upper surface of the moving seat 7 is fixedly connected with an L-shaped seat 10, and the surface of the L-shaped seat 10 is provided with a limiting groove.

[0021] The inner wall of the limit groove is slidably connected to the limit strip 11, and the surface of the limit strip 11 is fixedly connected to the mounting long plate 12, the lower surface of the mounting long plate 12 is fixedly connected to the rack 13, the lower surface of the movable seat 7 is fixedly connected to the second servo motor 14, the output end of the second servo motor 14 is fixedly connected to the gear 15 meshing with the surface of the rack 13, the end face of the mounting long plate 12 is fixedly connected to the circular vertical plate 16, the upper surface of the circular vertical plate 16 is fixedly connected to the third servo motor 17, the output end of the third servo motor 17 extends to the inside of the circular vertical plate 16 and is fixedly connected to the lead screw 18.

[0022] The bottom end of the lead screw 18 is rotatably connected to the inner bottom wall of the circular vertical plate 16, and the surface of the lead screw 18 is threadedly connected to a circular moving block 19. The surface of the circular moving block 19 overlaps the inner wall of the circular vertical plate 16, and the surface of the circular moving block 19 is fixedly connected to a mounting block 20, and the upper surface of the mounting block 20 is detachably mounted with a two-guard welding gun 21.

[0023] Pull the T-rod 26 to move the plug-in block 28 out of the plug-in slot, and rotate the T-rod 26, so that the threaded rod 27 is screwed into the threaded hole to fix the position of the T-rod 26, thereby fixing the position of the plug-in block 28. At this time, the position of the T-shaped support bar 24 can be moved to adjust the installation height of the mounting plate 2. The T-rod 26 is reversed to screw the threaded rod 27 out of the threaded hole. Under the elastic force of the spring 30, the plug-in block 28 is inserted into the new positioning slot to fix the position of the T-shaped support bar 24, so that the basic height of the two-guard welding gun 21 can be appropriately adjusted according to the welding conditions.

[0024] The upper surface of the mounting block 20 is fixedly connected with a first concave mounting seat 31, and the upper surface of the first concave mounting seat 31 is fixedly connected with a second concave mounting seat 32 by bolts. The first concave mounting seat 31 and the second concave mounting seat 32 clamp the two-guard welding gun 21, and the first servo motor 3 drives the lead screw 5 to rotate, and the moving block 6 moves to drive the moving seat 7 to move, which can drive the two-guard welding gun 21 to move in the X-axis direction, the second servo motor 14 drives the gear 15 to rotate, and the rack 13 drives the mounting long plate 12 to move, which can drive the two-guard welding gun 21 to move in the Y-axis direction, and the third servo motor 17 drives the lead screw 18 to rotate, and the circular moving block 19 moves, which can drive the two-guard welding gun 21 to move in the Z-axis direction, so that the two-guard welding gun 21 can automatically move in three axes to meet the welding requirements.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-axis servo double-gun double-protection welding machine, comprising a base bracket (1), characterized in that: The upper surface of the base bracket (1) is fixedly connected to a mounting plate (2), the upper surface of the mounting plate (2) is respectively fixedly connected to a first servo motor (3) and a fixed block (4), the output end of the first servo motor (3) is fixedly connected to a lead screw (5), the end surface of the lead screw (5) is rotatably connected to the surface of the fixed block (4), the surface of the lead screw (5) is threadedly connected to a moving block (6), the upper surface of the moving block (6) is fixedly connected to a moving seat (7), the lower surface of the moving seat (7) is fixedly connected to a sliding block (8), the upper surface of the mounting plate (2) is fixedly connected to a sliding rail (9), and the sliding rail (9) is fixedly connected to the upper surface of the mounting plate (2). The block (8) is slidably mounted on the upper surface of the slide rail (9), the upper surface of the movable seat (7) is fixedly connected to an L-shaped seat (10), a limiting groove is provided on the surface of the L-shaped seat (10), the inner wall of the limiting groove is slidably connected to a limiting strip (11), and the surface of the limiting strip (11) is fixedly connected to a mounting long plate (12), the lower surface of the mounting long plate (12) is fixedly connected to a rack (13), the lower surface of the movable seat (7) is fixedly connected to a second servo motor (14), and the output end of the second servo motor (14) is fixedly connected to a gear (15) meshing with the surface of the rack (13); The end surface of the mounting long plate (12) is fixedly connected to a circular vertical plate (16), the upper surface of the circular vertical plate (16) is fixedly connected to a third servo motor (17), the output end of the third servo motor (17) extends to the inside of the circular vertical plate (16) and is fixedly connected to a lead screw (18), the bottom end of the lead screw (18) is rotatably connected to the inner bottom wall of the circular vertical plate (16), the surface of the lead screw (18) is threadedly connected to a circular moving block (19), the surface of the circular moving block (19) is overlapped with the inner wall of the circular vertical plate (16), the surface of the circular moving block (19) is fixedly connected to a mounting block (20), and the upper surface of the mounting block (20) is detachably mounted with a two-protection welding gun (21).

2. According to claim 1, a three-axis servo double-gun double-protection welding machine is characterized in that: The base support (1) comprises two vertical supports (22) and a horizontal frame (23), wherein the horizontal frame (23) is fixedly installed between the two vertical supports (22).

3. According to claim 2, a three-axis servo double-gun double-protection welding machine is characterized in that: The upper surface of the vertical bracket (22) is provided with a mounting groove, the inner wall of the mounting groove is slidably connected with a T-shaped support bar (24), and the upper surface of the T-shaped support bar (24) is fixedly connected to the lower surface of the mounting plate (2).

4. The three-axis servo double-gun double-protection welding machine according to claim 3 is characterized by: A concave block (25) is fixedly connected to the surface of the vertical bracket (22), a threaded hole is opened on the surface of the concave block (25), a T-shaped rod (26) is installed inside the threaded hole, and a threaded rod (27) adapted to the threaded hole is fixedly connected to the end surface of the T-shaped rod (26).

5. The three-axis servo double-gun double-protection welding machine according to claim 4 is characterized by: The end surface of the T-shaped rod (26) is rotatably connected to a plug-in block (28), a surface of the plug-in block (28) close to the T-shaped rod (26) is fixedly connected to a limiting rod (29), and the opposite surface of the plug-in block (28) and the concave block (25) is fixedly connected to a spring (30).

6. The three-axis servo double-gun double-protection welding machine according to claim 5 is characterized by: A through opening communicating with the interior of the installation groove is formed on one side of the vertical bracket (22) facing the plug-in block (28), and the surface of the plug-in block (28) overlaps the inner wall of the through opening.

7. The three-axis servo double-gun double-protection welding machine according to claim 6 is characterized by: The surface of the T-shaped support strip (24) is provided with a plurality of positioning grooves matched with the plug-in block (28), and the surface of the plug-in block (28) overlaps with the inner wall of the positioning groove.

8. The three-axis servo double-gun double-protection welding machine according to claim 1 is characterized by: The upper surface of the mounting block (20) is fixedly connected to a first concave mounting seat (31), and the upper surface of the first concave mounting seat (31) is fixedly connected to a second concave mounting seat (32) via bolts; the first concave mounting seat (31) and the second concave mounting seat (32) clamp the second welding gun (21).

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