Integrated mechanism for welding filler feed-forward maintaining device

A welding filler feed-forward maintaining device is provided with a sliding block on a sliding rail mechanism, wherein the sliding jail mechanism is an end shaft of a working space, which is suitable tor use of the end arm of a robot arm, and a main bracket is vertically erected to pivot on the sliding block via a pivoting seat, and the main bracket extends to a welding head at one end, and an end of a solder conduit for soldering is bent toward the soldering tip, and a discharge port for leading the solder is furnished, and a pivoting drive assembly coupled to the pivoting seat is further disposed on the sliding block and is configured to drive the pivoting seat to pivot the main bracket in order to keep the discharge port in front of the weld head along the varying welding direction.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention provides a feed-forward maintaining device for a welding filler, in particular to a feed-forward maintaining device capable of maintaining the relative position of a solder discharge port and the welding head according to different processing directions to maintain an optimum solder filling point.

2. Description of Related Art

With various matured and developed mechanical automation technologies, in the automation process of various welding, such as argon welding devices, the provision of automatic feeding equipment is an indispensable means to improve processing efficiency, and due to the processing environment and production requirements, the simple automated welding equipment developed by the industry for specific processes is mostly designed for specific machines to fulfil the demand of mass production.

The conventional automatic welding equipment generally has a welding device and a separate solder wire filling mechanism, and the welding device is provided with a welding torch capable of generating high temperature at one end, and the solder wire filling mechanism is provided with a solder wire feeding nozzle for discharging the solder wire. The solder wire feeding nozzle and the welding torch are disposed on one side of a moving platform and fixed at corresponding positions.

In the operation, the mobile platform is capable of performing sliding to facilitate linear welding of the linear joint of the drum or the square barrel by the welding device and the solder wire feeding mechanism. The mobile platform can also be a rotary disc driven by a motor for 360 degrees, and is positioned with a pneumatic cylinder, a jig, a linear slide, etc., for welding a circular workpiece, so that it is difficult to realize a diversified path as a whole to fulfil welding requirements.

In the above structure, since the solder wire feeding nozzle and the welding torch are in a fixed relative position during the moving and welding process, the wire feeding nozzle is always located on a side of the welding torch in the fixing direction. When welding the weld bead of the 2D combined path, such as horizontal straight line, circular arc, oblique line, and vertical straight line, as shown inFIG. 1, it can be found that the upper horizontal straight bead has a good appearance, where the nozzle is set in front of the welding torch at the feed-forward position, but the remaining part of the weld bead is unevenly shaped due to the change of the orientation of the filler, and some of the weld bead is scratched, thus resulting in an undesirable application.

In view of the above-mentioned shortcomings of the conventional welding device and the automatic feeding mechanism, the present invention aims to mitigate these setbacks by providing an integrated mechanism for filler feed-forward maintaining welding machine.

SUMMARY OF THE INVENTION

The main object of the present invention is to provide a welding filler forward feeding maintenance device, which is provided with a sliding block on a sliding rail mechanism, a main bracket vertically pivoted on the sliding block via a pivoting seat, extending at one end to a soldering tip, a solder conduit for guiding solder is disposed on the side of the main bracket, and the solder conduit forms a discharge port for guiding the solder, a pivoting drive assembly coupled to the pivoting seat is further disposed on the sliding block, a pivoting drive assembly is configured to drive the pivoting seat to pivot the main bracket, and the sliding rail mechanism can drive the sliding block moving along a preset working path, cooperating with the pivoting drive assembly to drive the main bracket to pivot, keeping the discharge port in front of the welding head along the welding direction, thereby achieving optimal welding quality and weld bead morphology.

Another object of the present invention is to provide a welding filler feed forward maintaining device, wherein the discharge port is always located in front of the welding head along the welding direction, and when the solder is led out from the discharge port, the welding head is also oriented at the discharge port so that the solder can smoothly extend beneath the welding head and is in contact with the workpiece for effective heating by the welding head. Therefore, when the processing path is set, the moving path of the welding head can be set to extend along the welding bead without any other compensation parameters required, thereby effectively reducing production time and cost, promoting the competitiveness of products.

In order to achieve the abovementioned objects and effects, the technical means adopted by the present invention include: a sliding block is disposed on a sliding rail mechanism which is the end shaft of a mechanical arm in the working space, a main bracket is vertically erected on the sliding block via a pivoting seat, and one end of the main bracket extends to a welding head, a feeding mechanism has a solder conduit capable of transporting solder, and the end of the solder conduit is provided with a discharge port for leading the solder; a pivoting drive assembly is disposed on the sliding block and coupled to the pivoting seat, and the pivoting drive assembly is configured to drive the pivoting seat to pivot the main bracket such that the discharge port is always located in front of the welding head in the welding direction.

According to the above structure, the feeding mechanism has a feed drive assembly that is coupled to the solder conduit, and the feed drive assembly is capable of pushing the solder into the solder conduit and transporting toward the discharge port.

According to the above structure, a solder holder is disposed at one end of the main bracket away from the soldering tip, and a solder reel that supports the solder roll is pivotally disposed on the solder holder.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFIG. 2, the main structure of the present invention includes: a slider1, a main bracket2, a pivot drive assembly3, and a feeding mechanism4; the sliding block1is disposed on a sliding rail mechanism10, and the sliding rail mechanism10can be an end shaft of a working space, suitable for the end shaft of the mechanical arm to drive the sliding block1in a working space.

The main bracket2is vertically erected on the sliding block1via a pivoting seat21and extends at one end of the lower bracket22, and a welding head23is disposed at the end of the lower bracket22, and a pivoting drive assembly3is disposed on the sliding block1and coupled to the pivoting seat21, so that the pivoting drive assembly3can pivot the main bracket2via the pivoting seat21.

In a preferred embodiment, the pivoting drive assembly3can be a step motor or servo motor having a reduction gear set therein, and the main bracket2can be driven in the forward and reverse directions via the pivoting seat21.

The feeding mechanism4is disposed at an end of the main bracket2away from the welding head23. The feeding mechanism4has a feeding drive assembly41and a solder conduit42connected to each other, and a solder bracket24is disposed on the side of the feeding driving assembly41. The solder holder24is provided with a solder roll51for pivoting a strip of solder5; and the feed driving assembly41can receive the solder5sent from the solder roll51and introduce the solder5into the solder conduit42, The solder conduit42extends to the side of the weld head23and forms a discharge port43for guiding the solder5, so that the solder5derived from the discharge port43can be melted at a high temperature generated by the weld head23on the preset workpiece.

Referring toFIGS. 3 and 4, it can be seen that in the actual application, if a workpiece is to be processed on a U-shaped weld bead90, and at the initial processing portion D, the discharge port43is disposed in front of the welding head23along the machining direction D1.

When the slide mechanism10drives the sliding block1to carry the welding head23to enter the processing portion E laterally, the pivot drive assembly3can be pivoted in the X direction or the opposite direction via the pivoting seat21, and the main bracket2is pivoted so that the discharge port43can be kept in front of the welding head23in the machining direction E1.

When the sliding mechanism10drives the sliding block1to drive the welding head23to enter the processing portion F laterally, the pivoting drive assembly3can drive the main bracket2to pivot again via the pivoting seat21so that the discharge port43can be held in front of the welding head23in the machining direction F1.

In this way, during the processing of the weld bead90, the discharge port43can be kept in front of the weld head23with various machining directions, so that the solder5is led out from the discharge port43, and at the same time, the weld head23is also moved toward the discharge port43, so that the solder5can smoothly extend beneath the weld head23and contact the workpiece thus to be effectively heated by the weld head23. When the solder5is heated and welded onto the workpiece to form the weld bead90, the weld bead90will at the same time smoothly pull the solder5in the same direction as drained from the discharge port43to obtain significant welding quality and weld bead morphology.

In summary, the welding filler feed-forward maintaining device of the present invention is provided to adjust the relative position of the discharge port and the welding head of the solder according to different machining directions, so that the discharge port is held in front of the welding head along the machining direction to ensure the maintenance of the best welding quality and weld bead morphology.

The scope of protection is limited solely by the claims, and such scope is intended and should be interpreted to be as broad as is consistent with the ordinary meaning of the language that is used in the claims when interpreted in light of this specification and the prosecution history that follows, and to encompass all structural and functional equivalents thereof.