Welding wire feeding mechanism

Abstract

The utility model discloses a welding wire feeding mechanism which comprises a wire feeding cavity and a wire outlet installed at the left end of the wire feeding cavity, a wire supply coil is arranged in the wire feeding cavity and used for storing welding wires to be used, and a roller is arranged in the wire feeding cavity and used for guiding the moving direction of the welding wires. The outer wall of the front end of the wire feeding cavity is fixedly connected with a stepping motor, the stepping motor is electrically connected with an external power source, a coupler is arranged between the stepping motor and the roller, a middle shaft is arranged on the lower side of the wire feeding cavity, and an adjusting platform is arranged on the lower side of the middle shaft. Adjusting knobs are arranged on the outer wall of the front end and the outer wall of the right end of the adjusting platform, an angle adjuster is arranged on the right side of the middle shaft, and by installing the adjusting platform, the adjusting knobs, the middle shaft and the angle adjuster, the wire feeding position of the wire feeding cavity is accurately controlled, and the welding accuracy and quality are improved; and meanwhile, adaptive adjustment can be carried out according to different welding conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field related to wire feeders, and specifically relates to a welding wire feeding mechanism. Background Art

[0002] It is used in automatic bridge wire welding equipment to feed the welding wire from a reel or a wire wheel into the welding gun and send the welding wire out straightly, so as to realize the function of sending the welding wire to the designated position, and ensure that the welding wire is stably and evenly fed into the welding gun, thereby ensuring the welding quality. However, during the conveying process of the welding wire, the conveying direction of the welding wire is fixed, resulting in that after the position of the welding gun is adjusted, it cannot adapt to the position of the welding gun at different angles, causing the welding wire to bend after being conveyed. Utility Model Content

[0003] The utility model aims to provide a welding wire feeding mechanism to solve the problem that the welding gun position cannot be adapted to different angles after being adjusted as mentioned in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding wire feeding mechanism, comprising a wire feeding cavity and a wire outlet installed at the left end of the wire feeding cavity;

[0005] The wire feeding cavity is provided with a wire supply reel inside to store the welding wire to be used;

[0006] The internal roller of the wire feeding cavity is used to guide the moving direction of the welding wire;

[0007] A stepper motor is fixedly connected to the front end outer wall of the wire feeding cavity, the stepper motor is electrically connected to an external power supply, and a coupling is provided between the stepper motor and the roller;

[0008] A central axis is arranged at the lower side of the wire feeding cavity, an adjustment platform is arranged at the lower side of the central axis, adjustment knobs are arranged at the front end outer wall and the right end outer wall of the adjustment platform, and an angle adjuster is arranged at the right side of the central axis.

[0009] Preferably, a connecting plate b is fixedly connected between the central axis and the wire feeding cavity, and a connecting plate a is fixedly connected between the central axis and the adjustment platform.

[0010] Preferably, a movable plate is fixedly connected between the angle adjuster and the connecting plate b, and a movable assembly plate is transmission-connected between the connecting plate a and the connecting plate b.

[0011] Preferably, the adjustment platform includes a transverse movement component and a forward and backward movement component, and an adjustment bearing is provided between the central axis and the connecting plate b to adjust the angle of the wire feeding cavity.

[0012] Preferably, a top cover is provided on the upper side of the wire feeding cavity, and a sealing lock is provided between the top cover and the wire feeding cavity to limit the opening and closing of the top cover.

[0013] Preferably, an air inlet is fixedly connected to the outer wall of the upper end of the top cover to connect to a pipeline for conveying compressed gas from the outside, and buffer springs are provided on the upper and lower outer walls of the wire supply reel to provide constant resistance for the welding wire.

[0014] Preferably, a support plate is fixedly connected between the outer wall of the lower end of the stepper motor and the wire feeding cavity, and an outlet for exhausting compressed gas is provided inside the wire outlet.

[0015] Compared with the prior art, the utility model provides a welding wire feeding mechanism, which has the following beneficial effects:

[0016] By installing the adjustment platform, adjustment knob, center axis and angle adjuster, after the position angle of the welding gun is adjusted, the angle adjuster can be unlocked so that the center axis can drive the wire feeding chamber to adjust the angle in the left and right directions. After adjusting to the specified angle, the adjustment end of the center axis can be fixed by rotating the adjustment ring on the angle adjuster counterclockwise, and the position of the wire feeding chamber can be adjusted according to the position of the welding gun. The adjustment platform can be driven to move in the front and left directions by rotating the adjustment knob clockwise, and it can be adjusted in the opposite direction by rotating it counterclockwise, thereby accurately controlling the wire feeding position of the wire feeding chamber, improving the accuracy and quality of welding, and at the same time being able to adapt and adjust according to different welding conditions to improve flexibility during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of a welding wire feeding mechanism.

[0018] Figure 2 The utility model is a front view structural schematic diagram of a welding wire feeding mechanism.

[0019] Figure 3 It is a schematic diagram of the structure of the wire feeding cavity of the utility model when viewed from above.

[0020] In the figure: 1. adjustment platform; 2. adjustment knob; 3. connecting plate a; 4. middle axis; 5. angle adjuster; 6. connecting plate b; 7. wire feeding chamber; 8. sealing lock; 9. air inlet; 10. top cover; 11. wire outlet; 12. stepping motor; 13. movable plate; 14. movable group plate; 15. wire supply reel; 16. buffer spring; 17. roller; 18. coupling. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3 A welding wire feeding mechanism shown includes a wire feeding cavity 7 and a wire outlet 11 installed at the left end of the wire feeding cavity 7;

[0023] A wire supply reel 15 is provided inside the wire feeding cavity 7 to store the welding wire to be used;

[0024] The inner roller 17 of the wire feeding chamber 7 guides the moving direction of the welding wire;

[0025] The front end outer wall of the wire feeding cavity 7 is fixedly connected with a stepper motor 12, the stepper motor 12 is electrically connected to an external power supply, and a coupling 18 is arranged between the stepper motor 12 and the roller 17. During the wire feeding process, the stepper motor 12 drives the roller 17 to pull the welding wire on the wire supply reel 15 to move and deliver it from the wire outlet 11;

[0026] A central axis 4 is provided on the lower side of the wire feeding cavity 7, and an adjustment platform 1 is provided on the lower side of the central axis 4. Adjustment knobs 2 are provided on the front end outer wall and the right end outer wall of the adjustment platform 1. An angle adjuster 5 is provided on the right side of the central axis 4. The adjustment knob 2 can be rotated to move the adjustment platform 1 in the lateral and front-to-back directions, so as to adjust the position of the wire feeding cavity 7. At the same time, the central axis 4 can be unlocked by rotating the angle adjuster 5 as needed, and the wire feeding cavity 7 can be rotated to make any angle adjustment within the limit of the central axis 4. After the adjustment is completed, the central axis 4 can be fixed by the angle adjuster 5.

[0027] like Figure 1 As shown, a connecting plate b6 is fixedly connected between the central axis 4 and the wire feeding cavity 7, a connecting plate a3 is fixedly connected between the central axis 4 and the adjustment platform 1, a movable plate 13 is fixedly connected between the angle adjuster 5 and the connecting plate b6, and a movable group plate 14 is transmission-connected between the connecting plate a3 and the connecting plate b6.

[0028] When the angle of the central axis 4 is adjusted, the inclination angle of the wire feeding cavity 7 can be adapted by the movable plate 13 and the movable assembly plate 14 to support the wire feeding cavity 7 at the adjusted angle.

[0029] like Figure 1 As shown, the adjustment platform 1 includes a transverse movement component and a forward and backward movement component, and an adjustment bearing is arranged between the central axis 4 and the connecting plate b6 to adjust the angle of the wire feeding cavity 7.

[0030] Through the transverse movement component and the front and rear components, when the adjustment knob 2 is rotated, the wire feeding cavity 7 can be adjusted to perform appropriate plane position adjustment. When the wire feeding cavity 7 is adjusted in angle, the left and right tilt angles of the wire feeding cavity 7 are limited by adjusting the bearings.

[0031] like Figure 1 and Figure 3 As shown, a top cover 10 is provided on the upper side of the wire feeding cavity 7, and a sealing lock buckle 8 is provided between the top cover 10 and the wire feeding cavity 7 to limit the opening and closing of the top cover 10, and an air inlet 9 is fixedly connected to the upper outer wall of the top cover 10 to connect with a pipeline for conveying compressed gas from the outside, and buffer springs 16 are provided on the upper and lower outer walls of the wire supply reel 15 to provide constant resistance for the welding wire, a support plate is fixedly connected between the lower outer wall of the stepper motor 12 and the wire feeding cavity 7, and an air outlet for the compressed gas to be discharged is provided inside the wire outlet 11.

[0032] When the stepper motor 12 drives the welding wire to move, the wire supply reel 15 provides constant resistance to the welding wire by the friction force of the buffer spring 16 to ensure that the welding wire is supplied in a straight line. In addition, compressed gas is input into the wire feeding cavity 7 through the air inlet 9 to provide positive pressure, and the positive pressure air is discharged from the air outlet opened on the wire outlet 11, so that the welding wire delivered by the roller 17 is delivered straightly. The top cover 10 can be flipped up by unlocking the sealing lock 8 to replace the wire supply reel 15.

[0033] The implementation principle of this embodiment is as follows: when fixing the wire feeding mechanism, first open the top cover 10 to replace the wire supply reel 15, then pass the welding wire through the wire outlet 11, and close the top cover 10 to fix it through the sealing lock buckle 8, and then according to the position of the welding gun, rotate the adjustment knob 2 to control the position of the wire feeding cavity 7 to adjust the front, back, left and right positions, and adjust the inclination angle of the wire feeding cavity 7 through the central axis 4, so that the welding wire delivered from the wire outlet 11 and the weld are at the most suitable angle for welding, the stepper motor 12 will drive the roller 17 to rotate and drive the welding wire to move, and during the movement, the air inlet 9 will input compressed air and discharge it from the air outlet opened on the wire outlet 11, so that the welding wire delivered from the wire outlet 11 is delivered straight.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 welding wire feeding mechanism, comprising a wire feeding cavity (7) and a wire outlet (11) installed at the left end of the wire feeding cavity (7); The wire feeding cavity (7) is provided with a wire supply reel (15) inside for storing the welding wire to be used; The inner roller (17) of the wire feeding cavity (7) is used to guide the moving direction of the welding wire; A stepper motor (12) is fixedly connected to the front end outer wall of the wire feeding cavity (7), the stepper motor (12) is electrically connected to an external power supply, and a coupling (18) is provided between the stepper motor (12) and the roller (17); Features: A central axis (4) is arranged at the lower side of the wire feeding cavity (7), an adjustment platform (1) is arranged at the lower side of the central axis (4), an adjustment knob (2) is arranged at the front end outer wall and the right end outer wall of the adjustment platform (1), and an angle adjuster (5) is arranged at the right side of the central axis (4).

2. A welding wire feeding mechanism according to claim 1, characterized in that: A connecting plate b (6) is fixedly connected between the central shaft (4) and the wire feeding cavity (7), and a connecting plate a (3) is fixedly connected between the central shaft (4) and the adjustment platform (1).

3. A welding wire feeding mechanism according to claim 1, characterized in that: A movable plate (13) is fixedly connected between the angle adjuster (5) and the connecting plate b (6), and a movable assembly plate (14) is transmission-connected between the connecting plate a (3) and the connecting plate b (6).

4. A welding wire feeding mechanism according to claim 1, characterized in that: The adjustment platform (1) comprises a transverse movement component and a forward and backward movement component, and an adjustment bearing is provided between the central axis (4) and the connecting plate b (6) to adjust the angle of the wire feeding cavity (7).

5. A welding wire feeding mechanism according to claim 1, characterized in that: A top cover (10) is arranged on the upper side of the wire feeding cavity (7), and a sealing lock buckle (8) is arranged between the top cover (10) and the wire feeding cavity (7) to limit the opening and closing of the top cover (10).

6. A welding wire feeding mechanism according to claim 5, characterized in that: The upper outer wall of the top cover (10) is fixedly connected with an air inlet (9) to connect with a pipeline for conveying compressed gas from the outside, and the upper and lower outer walls of the wire supply reel (15) are both provided with buffer springs (16) to provide constant resistance for the welding wire.

7. A welding wire feeding mechanism according to claim 1, characterized in that: A support plate is fixedly connected between the outer wall of the lower end of the stepping motor (12) and the wire feeding cavity (7), and an outlet for discharging compressed gas is provided inside the wire outlet (11).

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