Welding wire feeding guide head

Abstract

The utility model discloses a welding wire feeding guide head, which belongs to the technical field of welding and comprises a support rod and a guide rod rotatably mounted at the bottom of the support rod, a gap is reserved between the support rod and the guide rod, a first through hole and a second through hole are respectively arranged inside the support rod and the guide rod, and an inlet of the second through hole is arranged at the gap. The first through hole and the second through hole are connected through a hose. And a plurality of balls are arranged on the inner walls of the first through hole and the second through hole. An abutting wheel and a driving wheel are rotationally mounted at an inlet of the second through hole, the abutting wheel abuts against the welding wire, and the driving wheel can drive the welding wire to move. The welding wires are conveyed smoothly, the problems of wire clamping or blocking in the wire feeding process are solved, friction resistance of the welding wires in the conveying process is reduced, and conveying efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to a welding wire feeding guide head and belongs to the technical field of welding. Background Art

[0002] In the welding process, the wire feeding link is very important. The usual wire feeding structure is only provided with a pushing device at the outlet. However, when the welding wire is long in the channel, the friction resistance between the channel and the welding wire increases with the increase of the welding wire length, and the welding wire is prone to breakage. In order to ensure the welding quality and efficiency, a welding wire feeding device with a simple structure, convenient operation, safety and reliability is required, so as to accurately deliver the welding wire to the welding position. The utility model provides such a welding wire feeding guide head. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a welding wire feeding guide head, which can solve the problem that the welding wire is easily broken.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a welding wire feeding guide head, comprising a support rod and a guide rod rotatably installed at the bottom of the support rod, a gap is left between the support rod and the guide rod, a first through hole and a second through hole are respectively provided inside the support rod and the guide rod, the entrance of the second through hole is arranged at the gap, and the first through hole and the second through hole are connected by a hose.

[0005] A plurality of balls are disposed on the inner walls of the first through hole and the second through hole.

[0006] A pressing wheel and a driving wheel are rotatably mounted at the entrance of the second through hole. The pressing wheel presses against the welding wire, and the driving wheel can drive the welding wire to move.

[0007] Preferably, a clearance space is reserved at the outlet of the first through hole and the inlet of the second through hole, a hose is arranged in the clearance space, and two ends of the hose are respectively connected to the outlet of the first through hole and the inlet of the second through hole.

[0008] Preferably, the driving wheel is rotatably mounted inside the guide rod, and a portion of the driving wheel is arranged in the second through hole and pressed against one side of the welding wire.

[0009] Preferably, a protrusion is provided on the guide rod, the clamping wheel is rotatably mounted on the connecting plate, the connecting plate is slidably mounted inside the protrusion through a spring, the connecting plate can slide inside the guide rod, and the sliding direction of the connecting plate points to the driving wheel.

[0010] Preferably, the balls are embedded in the side walls of the first through hole and the second through hole, and part of the balls extend out of the side walls.

[0011] Preferably, a first motor for driving the driving wheel to rotate is fixed on the guide rod.

[0012] Preferably, side plates are fixed on both sides of the guide rod, and the two side plates are respectively rotatably installed on both sides of the support rod, and a second motor for driving the side plates to rotate is provided on the support rod.

[0013] Compared with the prior art, the utility model realizes the smooth feeding of the welding wire by setting the first through hole, the second through hole and the balls on the side wall of the through hole, avoids problems such as wire jamming or blockage during the wire feeding process, reduces the frictional resistance of the welding wire during the feeding process, and improves the feeding efficiency and accuracy. By setting the pressing wheel and the driving wheel, reliable clamping and driving of the welding wire are realized, and the stability and quality of the welding process are ensured. The automatic control of the guide rod and the driving wheel is realized by motor drive, further improving the working efficiency and operation convenience. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model.

[0015] Figure 2 is an internal sectional view of the utility model.

[0016] Figure 3 is the utility model Figure 2 The sectional view taken along line A-A in.

[0017] Figure 4 is the utility model Figure 2 The enlarged view at position B in.

[0018] In the figure: 1, support rod; 2, side plate; 3, hose; 4, protrusion; 5, guide rod; 6, first motor; 7, ball; 8, pressing wheel; 9, driving wheel; 10, connecting plate; 11, spring. Detailed Embodiments

[0019] The following uses specific embodiments to illustrate the utility model, but it is not a limitation to the utility model.

[0020] Embodiment

[0021] As Figures 1 - 4As shown, in this embodiment, a welding wire feeding guide head is provided, including a support rod 1 and a guide rod 5 rotatably installed at the bottom of the support rod 1, a gap is left between the support rod 1 and the guide rod 5, a first through hole and a second through hole are respectively provided inside the support rod 1 and the guide rod 5, the entrance of the second through hole is arranged at the gap, the first through hole and the second through hole are connected by a hose 3, the welding wire can easily move inside the hose 3, a clearance space is left at the outlet of the first through hole and the entrance of the second through hole, a hose 3 is arranged in the clearance space, two ends of the hose 3 are respectively connected to the outlet of the first through hole and the entrance of the second through hole, when the support rod 1 and the guide rod 5 rotate relative to each other, the outlet of the first through hole and the entrance of the second through hole change relatively, and the hose 3 can play a guiding role.

[0022] A plurality of balls 7 are provided on the inner walls of the first through hole and the second through hole. The balls 7 are embedded in the side walls of the first through hole and the second through hole, and some parts of the balls 7 extend out of the side walls. The balls 7 are provided on the side walls of the first through hole and the second through hole, so that the welding wire can pass through more easily.

[0023] A clamping wheel 8 and a driving wheel 9 are rotatably installed at the entrance of the second through hole. The clamping wheel 8 is pressed against the welding wire, and the driving wheel 9 can drive the welding wire to move. The driving wheel 9 is rotatably installed inside the guide rod 5. Part of the driving wheel 9 is arranged in the second through hole and pressed against one side of the welding wire. Side plates 2 are fixed on both sides of the guide rod 5. The side plates 2 on both sides are rotatably installed on both sides of the support rod 1. A second motor for driving the side plates 2 to rotate is provided on the support rod 1. The second motor can adjust the rotation angle of the guide rod 5 on the support rod 1 without manual operation. The operation can be adjusted during welding, a protrusion 4 is provided on the guide rod 5, and the clamping wheel 8 is rotatably installed on the connecting plate 10. The connecting plate 10 is slidably installed inside the protrusion 4 through the spring 11. The connecting plate 10 can slide inside the guide rod 5, and the sliding direction of the connecting plate 10 points to the driving wheel 9. A first motor 6 for driving the driving wheel 9 to rotate is fixed on the guide rod 5. The first motor 6 can drive the driving wheel 9 to rotate. Under the push of the clamping wheel 8, the welding wire is attached to the driving wheel 9, and the rotation of the driving wheel 9 can drive the welding wire to move.

[0024] Working principle: The welding wire passes through the first through hole inside the support rod 1, the hose 3 and the second through hole inside the guide rod 5 and slides out from the end of the guide rod 5. The ball bearings 7 on the side walls of the first through hole and the second through hole can play a guiding role, making it easier for the welding wire to move inside the first through hole and the second through hole. A driving wheel 9 and a clamping wheel 8 are arranged inside the guide rod 5. The clamping wheel 8 can clamp the welding wire against the driving wheel 9 and push the welding wire to move by rotating the driving wheel 9, thereby completing the welding wire feeding work.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that it is still possible to modify or equivalently replace the present utility model. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall be covered by the scope of the claims of the present utility model.

Claims

1. A welding wire guide head, characterized in that: It comprises a support rod (1) and a guide rod (5) rotatably mounted at the bottom of the support rod (1), a gap is left between the support rod (1) and the guide rod (5), a first through hole and a second through hole are respectively provided inside the support rod (1) and the guide rod (5), the entrance of the second through hole is arranged at the gap, and the first through hole and the second through hole are connected by a hose (3); A plurality of balls (7) are provided on the inner walls of the first through hole and the second through hole; A pressing wheel (8) and a driving wheel (9) are rotatably mounted at the entrance of the second through hole. The pressing wheel (8) presses against the welding wire, and the driving wheel (9) can drive the welding wire to move.

2. A welding wire guide head according to claim 1, characterized in that: A clearance space is left at the outlet of the first through hole and the inlet of the second through hole, a hose (3) is arranged in the clearance space, and two ends of the hose (3) are respectively connected to the outlet of the first through hole and the inlet of the second through hole.

3. A welding wire guide head according to claim 1, characterized in that: The driving wheel (9) is rotatably mounted inside the guide rod (5), and part of the driving wheel (9) is arranged in the second through hole and pressed against one side of the welding wire.

4. A welding wire guide head according to claim 1, characterized in that: The guide rod (5) is provided with a protrusion (4), the retaining wheel (8) is rotatably mounted on a connecting plate (10), the connecting plate (10) is slidably mounted inside the protrusion (4) via a spring (11), the connecting plate (10) can slide inside the guide rod (5), and the sliding direction of the connecting plate (10) points to the driving wheel (9).

5. A welding wire guide head according to claim 1, characterized in that: The ball (7) is embedded in the side walls of the first through hole and the second through hole, and a portion of the ball (7) passes through the side walls.

6. A welding wire guide head according to claim 3, characterized in that: A first motor (6) for driving the driving wheel (9) to rotate is fixed on the guide rod (5).

7. A welding wire guide head according to claim 3, characterized in that: Side plates (2) are fixed on both sides of the guide rod (5), and the side plates (2) are rotatably mounted on both sides of the support rod (1) respectively. The support rod (1) is provided with a second motor for driving the side plates (2) to rotate.

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