Patent Application
20230264291
This application claims the benefit of Chinese Patent Application No. CN202210156442.X filed on Feb. 21, 2022 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference.
The present invention relates to a welding system and a welding method for welding a wire to a welding pad.
When manufacturing communication products, it is often necessary to weld a wire to a welding pad. In order to ensure high-speed data transmission, high welding accuracy must be ensured between the wire and the welding pad. In the prior art, in order to align the wire with the welding pad, a fixture is typically used to clamp and align the wire and the welding pad. However, with the miniaturization of communication products, the diameter of the wires to be welded are becoming increasingly smaller. As a result, it is difficult to ensure the accurate alignment of the wire and the welding pad via a fixture, which leads to a positioning error between the wire and the welding pad.
Improved systems and methods addressing these issues are required.
According to an embodiment of the present disclosure, a welding system for welding a wire to a welding pad includes a moving device movable in at least two directions, a welding head mounted on the moving device and a visual devise. The welding head is adapted to clamp the wire. The visual device guides the moving device to move the welding head to a predetermined position. In operation, the moving device moves the welding head to a clamping position aligned with the wire, and moves the clamped wire to a welding position aligned with the welding pad under the guidance of the visual device.
The invention will now be described by way of example with reference to the accompanying Figures, of which:
Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.
According to an embodiment of the present disclosure, a welding system comprises a moving device capable of moving in at least two different directions. A welding head is mounted on the moving device and moves therewith. A visual device of the system provides visual guidance for the moving device to move the welding head to a predetermined position by the moving device. The welding head is adapted to clamp a wire to be welded. The moving device is adapted to move the welding head to a clamping position aligned with the wire, and move the clamped wire to a welding position aligned with a welding pad under the guidance of the visual device.
According to another embodiment of the present disclosure, a welding method comprises steps of: 1) providing the above described welding system; 2) using the visual device to identify the position of a wire to be welded; 3) moving the welding head to a clamping position aligned with the wire by the moving device and clamping the wire by the welding head; 4) using the visual device to identify the position of a welding pad; and 5) moving the clamped wire to a welding position aligned with a welding pad by the moving device and welding the wire onto the welding pad by the welding head.
The welding head 100 can be a laser welding head or a soldering iron head. A V-shaped groove 110 is formed on the end of the welding head 100. The V-shaped groove 110 extends a predetermined length along the axial direction of the wire 1 and is adapted to clamp the wires 1 with different diameters. The moving device 400 can move in at least two different directions X,Z. The welding head 100 is mounted on the moving device 400 an is movable therewith along the at least two different directions X,Z. The visual device 200 provides the moving device 400 with visual guidance to move the welding head 100 to a predetermined position via the moving device 400.
In the exemplary embodiment, the vertical moving module 41,410 is installed on the horizontal moving module 42,420 to move along the horizontal direction X with the horizontal moving module. The welding head 100 is installed on the vertical moving module 41,410 to move along the vertical direction Z with the vertical moving module.
However, the present invention is not limited to the illustrated embodiments. In another exemplary embodiment of the present invention, the horizontal moving module 42,420 is installed on the vertical moving module 41,410 to be able to move along the vertical direction Z with the vertical moving module. Likewise, the welding head 100 is installed on the horizontal moving module 42,420 to move along the horizontal direction X with the horizontal moving module.
The welding system also includes a bracket 10, which has a support plate 11 extending in the horizontal direction X and vertical direction Z. The moving device 400 is installed on the support plate 11 of the bracket 10.
The vertical moving module 41,410 includes a first movable plate 41 and a first driving device 410. The first driving device 410 is used to drive the first movable plate 41 to move in the vertical direction Z. The horizontal moving module 42,420 includes a second movable plate 42 and a second driving device 420. The second driving device 420 is used to drive the second movable plate 42 to move in the horizontal direction X.
The welding head 100 is installed on the first movable plate 41. The first movable plate 41 and the first driving device 410 are mounted on the second movable plate 42. The second movable plate 42 and the second driving device 420 are installed on the support plate 11.
The first driving device 410 includes a first lead screw 411, a first nut 412, and a first motor 413. The first lead screw 411 is rotatably mounted on the second movable plate 42. The first nut 412 is threaded with the first lead screw 411 and fixed to the first movable plate 41. The first motor 413 is fixed on the second movable plate 42 to drive the first lead screw 411 to rotate.
The second driving device 420 includes a second lead screw 421, a second nut 422 and a second motor 423. The second lead screw 421 is rotatably mounted on the support plate 11. The second nut 422 is threaded with the second lead screw 421 and fixed to the second movable plate 42. The second motor 423 is fixed on the support plate 11 to drive the second lead screw 421 to rotate.
One of the first movable plate 41 or the second movable plate 42 is provided with a first sliding rail 401 extending in the vertical direction Z, and the other is provided with a first sliding block suitable for sliding fit with the first sliding rail 401. The first movable plate 41 is slidably mounted on the second movable plate 42 by the first sliding rail 401 and the first sliding block.
One of the support plate 11 or the second movable plate 42 is provided with a second sliding rail 402 extending in the horizontal direction X, and the other is provided with a second sliding block suitable for sliding fit with the second sliding rail 402. The second movable plate 42 is slidably mounted on the support plate 11 by the second sliding rail 402 and the second sliding block.
Both the visual device 200 and the welding head 100 are installed on the first movable plate 41, such that the visual device 200 and the welding head are moved together. The visual device 200 may be a camera, and the welding head 100 is located in the field of view of the visual device.
A welding method for welding the wire 1 to the welding pad 2 by the aforementioned welding system will be described below with reference to the drawings. The welding method includes the following steps of:
S100: providing the welding system as shown in
S200: using the visual device 200 to identify the position of wire 1 to be welded;
S300: as shown in
S400: using the visual device 200 to identify the position of welding pad 2; and
S500: as shown in
In addition, those areas in which it is believed that those of ordinary skill in the art are familiar, have not been described herein in order not to unnecessarily obscure the invention described. Accordingly, it has to be understood that the invention is not to be limited by the specific illustrative embodiments, but only by the scope of the appended claims.
It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrated, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.
Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.
As used herein, an element recited in the singular and proceeded with the word “a” or “an” should be understood as not excluding plural of the elements or steps, unless such exclusion is explicitly stated. Furthermore, references to “one embodiment” of the present disclosure are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments “comprising” or “having” an element or a plurality of elements having a particular property may include additional such elements not having that property.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210156442.X | Feb 2022 | CN | national |
