Welding wire conveying mechanism of carbon dioxide arc welding machine

Abstract

The welding wire conveying mechanism comprises a fixing plate, a plurality of fixing holes are formed in the bottom wall of the fixing plate, a connecting frame is fixedly installed on the bottom wall of the fixing plate through a supporting rod, a connecting shaft is rotatably installed on the connecting frame, a connecting plate is fixedly connected to the outer wall of the connecting shaft through a connecting mechanism, and the connecting plate is fixedly connected with the connecting mechanism. A gear is fixedly mounted on the outer wall of the connecting shaft, a moving block is fixedly mounted on the bottom wall of the fixing plate through a telescopic mechanism, and a toothed plate meshed with the gear is fixedly mounted on the outer wall of the moving block through a moving rod. According to the welding wire conveying device, the electric push rod, the toothed plate, the gear and other assemblies are arranged, the electric push rod can drive the toothed plate to move through cooperation of the moving block and the moving rod, the toothed plate can rotate the gear in an engaged mode at the moment, the gear can drive the connecting shaft to rotate, the connecting shaft drives the connecting plate to rotate through the connecting block, and therefore the conveying angle of welding wires can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to two safe welding machine technical field especially relates to a welding wire conveying mechanism of two safe welding machine. BACKGROUND

[0002] ‌Two safe welding machine full name is carbon dioxide gas shielded welding machine, is a kind of high-efficiency welding equipment using carbon dioxide as protective gas, it is mainly used for the welding of low-carbon steel and low-alloy high-strength steel, with high efficiency, high quality characteristics.

[0003] Welding wire automatic conveying can continuously, stably provide welding wire, without manual frequent addition and replacement, to significantly improve the production efficiency of welding operation. In the prior art, when two safe welding machine is conveyed to welding wire by conveying mechanism, welding wire can only be conveyed along the same angle, so that in the welding process, welding wire cannot adjust conveying angle according to the change of welding angle, in turn affect welding efficiency, insufficient practicality.

[0004] Therefore, it is necessary to redesign a welding wire conveying mechanism of two safe welding machine for the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a welding wire conveying mechanism of two safe welding machine.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of welding wire conveying mechanism of two safe welding machine, including fixed plate, the fixed plate bottom wall is equipped with multiple fixed holes, the fixed plate bottom wall is fixedly installed with connecting frame by support rod, the connecting frame is rotatably installed with connecting shaft, the connecting shaft outer wall is fixedly connected with connecting plate by connecting mechanism, the connecting shaft outer wall is fixedly installed with gear, the fixed plate bottom wall is fixedly installed with moving block by telescopic mechanism, the moving block outer wall is fixedly installed with the gear engagement toothed plate by moving rod, the connecting plate bottom wall is rotatably installed with driven pinch roller by mounting frame, the connecting plate upper end surface is slidably penetrated and is installed with two adjusting rods, the outer wall of two adjusting rods is fixedly installed with limit block, the bottom wall of two limit blocks is connected with the upper end surface of connecting plate by adjusting mechanism, the end of two adjusting rods is fixedly connected with adjusting frame by link mechanism, the adjusting frame is rotatably installed with driving pinch roller in the inside, the adjusting frame outer wall is fixedly installed with motor connected with driving pinch roller.

[0008] Preferably, the connecting mechanism includes connecting block fixedly installed on the outer wall of connecting shaft, and the end of the connecting block is fixedly connected with the upper end surface of the connecting plate.

[0009] Preferably, the telescopic mechanism includes an electric actuator fixedly installed on the bottom wall of the fixed plate, and the telescopic end of the electric actuator is fixedly connected to the upper end face of the moving block.

[0010] Preferably, the adjustment mechanism includes an adjustment spring installed on the outer wall of the adjustment rod, and the two ends of the adjustment spring are elastically connected to the upper surface of the connecting plate and the bottom wall of the limiting block, respectively.

[0011] Preferably, the connecting mechanism includes a connecting plate fixedly installed at the end of the adjusting rod, and the end of the connecting plate is fixedly connected to the outer wall of the adjusting frame.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as electric push rod, toothed plate and gear, the electric push rod can drive the toothed plate to move through the cooperation of the moving block and the moving rod. At this time, the toothed plate can mesh with the rotating gear, which can drive the connecting shaft to rotate. The connecting shaft then drives the connecting plate to rotate through the connecting block, so that the feeding angle of the welding wire can be easily adjusted.

[0014] 2. By setting up components such as a connecting plate, adjusting rod, and adjusting spring, the adjusting frame can be driven by the connecting plate to slide on the bottom wall of the connecting plate under the elastic action of the adjusting spring. This allows for elastic adjustment of the distance between the active and driven clamping rollers, enabling the clamping and conveying of welding wires of different thicknesses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wire feeding mechanism of a MIG / MAG welding machine proposed in this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side view of the wire feeding mechanism of a MIG / MAG welding machine proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Fixed plate, 2. Support rod, 3. Connecting frame, 4. Connecting shaft, 5. Connecting block, 6. Connecting plate, 7. Gear, 8. Electric push rod, 9. Moving block, 10. Moving rod, 11. Tooth plate, 12. Mounting frame, 13. Driven clamping roller, 14. Adjusting rod, 15. Limiting block, 16. Adjusting spring, 17. Connecting plate, 18. Adjusting frame, 19. Active clamping roller, 20. Motor. Detailed Implementation

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] With reference to Figures 1-5 A welding wire conveying mechanism of a two-arc welding machine, comprising a fixed plate 1, a plurality of fixing holes are formed in the bottom wall of the fixed plate 1, a connecting frame 3 is fixedly installed on the bottom wall of the fixed plate 1 through a support rod 2, a connecting shaft 4 is rotatably installed on the connecting frame 3, a connecting plate 6 is fixedly connected to the outer wall of the connecting shaft 4 through a connecting mechanism, the connecting mechanism comprises a connecting block 5 fixedly installed on the outer wall of the connecting shaft 4, and the end of the connecting block 5 is fixedly connected to the upper end surface of the connecting plate 6.

[0023] A gear 7 is fixedly installed on the outer wall of the connecting shaft 4, a moving block 9 is fixedly installed on the bottom wall of the fixed plate 1 through an extension mechanism, the extension mechanism comprises an electric push rod 8 fixedly installed on the bottom wall of the fixed plate 1, the extension end of the electric push rod 8 is fixedly connected to the upper end surface of the moving block 9, a toothed plate 11 engaged with the gear 7 is fixedly installed on the outer wall of the moving block 9 through a moving rod 10, a driven pinch roller 13 is rotatably installed on the bottom wall of the connecting plate 6 through an installation frame 12, two adjusting rods 14 are slidably penetrated and installed on the upper end surface of the connecting plate 6, and limiting blocks 15 are fixedly installed on the outer walls of the two adjusting rods 14.

[0024] The bottom walls of the two limiting blocks 15 are connected to the upper end surface of the connecting plate 6 through adjusting mechanisms, the adjusting mechanisms comprise adjusting springs 16 installed on the outer walls of the adjusting rods 14, the two ends of the adjusting springs 16 are elastically connected to the upper end surface of the connecting plate 6 and the bottom wall of the limiting block 15 respectively, the end portions of the two adjusting rods 14 are fixedly connected to an adjusting frame 18 in common through a linking mechanism, the linking mechanism comprises a linking plate 17 fixedly installed on the end portion of the adjusting rod 14, the end portion of the linking plate 17 is fixedly connected to the outer wall of the adjusting frame 18, a driving pinch roller 19 is rotatably installed in the adjusting frame 18, and a motor 20 connected to the driving pinch roller 19 is fixedly installed on the outer wall of the adjusting frame 18.

[0025] In use, the fixed plate 1 can be fixedly installed through the cooperation of the fixing bolts and the fixing holes, the welding wire can be clamped between the driven pinch roller 13 and the driving pinch roller 19 before the welding wire is conveyed, then the electric push rod 8 can be extended and retracted, the toothed plate 11 is driven to move through the cooperation of the moving block 9 and the moving rod 10, at this time, the toothed plate 11 can engage the rotating gear 7, so that the gear 7 drives the connecting shaft 4 to rotate, the connecting shaft 4 drives the connecting plate 6 to rotate through the connecting block 5, and thus the conveying angle of the welding wire can be conveniently adjusted.

[0026] When the welding wire is transported, the motor 20 can drive the driving clamp roller 19 to rotate, and the driving clamp roller 19 can clamp and transport the welding wire through cooperation with the driven clamp roller 13. When it is required to transport welding wires with different diameters, the driving clamp roller 19 can drive the two adjusting rods 14 to slide on the bottom wall of the connecting plate 6 through cooperation of the two link plates 17 when the driving clamp roller 19 is clamped and stressed, and the two adjusting springs 16 can be pulled and squeezed according to the thickness of the welding wire, so that the distance between the driving clamp roller 19 and the driven clamp roller 13 can be elastically adjusted, and the driving clamp roller 19 and the driven clamp roller 13 can clamp and transport steel wires with different thicknesses through cooperation.

[0027] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A welding wire feed mechanism for a two-pass welding machine, characterized by: The utility model relates to a fixed plate (1) is provided with a plurality of fixed holes on the bottom wall, and the bottom wall of fixed plate (1) is fixedly installed with connecting frame (3) through support rod (2), connecting frame (3) is rotatably installed with connecting shaft (4), and the outer wall of connecting shaft (4) is fixedly connected with connecting plate (6) through connecting mechanism, and the outer wall of connecting shaft (4) is fixedly installed with gear (7), and the bottom wall of fixed plate (1) is fixedly installed with moving block (9) through telescopic mechanism, and the outer wall of moving block (9) is fixedly installed with the toothed plate (11) of the engagement of gear (7) through moving rod (10), the bottom wall of connecting plate (6) is rotatably installed with driven pinch roller (13) through mounting frame (12), the upper end surface of connecting plate (6) is slidably penetrated and is installed with two adjusting rods (14), and the outer wall of two adjusting rods (14) is fixedly installed with limiting block (15) all, and the bottom wall of two limiting blocks (15) is all connected with the upper end surface of connecting plate (6) through adjusting mechanism, and the end of two adjusting rods (14) is all fixedly connected with adjusting frame (18) through link mechanism, and the inside rotatable installation of adjusting frame (18) is driven pinch roller (19), and the outer wall of adjusting frame (18) is fixedly installed with motor (20) connected with driven pinch roller (19).

2. A welding wire feed mechanism for a two-pass welding machine as defined in claim 1, wherein: The connecting mechanism includes a connecting block (5) fixedly installed on the outer wall of the connecting shaft (4), and the end of the connecting block (5) is fixedly connected with the upper end surface of the connecting plate (6).

3. A welding wire feed mechanism for a two-phase welding machine as defined in claim 2 wherein: The telescopic mechanism includes an electric push rod (8) fixedly installed on the bottom wall of the fixed plate (1), and the telescopic end of the electric push rod (8) is fixedly connected with the upper end surface of the moving block (9).

4. A welding wire feed mechanism for a two-phase welding machine as defined in claim 3 wherein: The adjusting mechanism includes an adjusting spring (16) installed on the outer wall of the adjusting rod (14), and the two ends of the adjusting spring (16) are respectively elastically connected with the upper end surface of the connecting plate (6) and the bottom wall of the limiting block (15).

5. A welding wire feed mechanism for a two-phase welding machine as defined in claim 4 wherein: The link mechanism includes a link plate (17) fixedly installed on the end of the adjusting rod (14), and the end of the link plate (17) is fixedly connected with the outer wall of the adjusting frame (18).

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