Search

CN-121972776-A - Welding device

CN121972776ACN 121972776 ACN121972776 ACN 121972776ACN-121972776-A

Abstract

The application discloses a welding device which comprises a first bracket, a driving assembly, a welding gun assembly, a second bracket and a welding seam tracking sensor, wherein the welding seam tracking sensor is fixed on the first bracket, the driving assembly is fixed on the first bracket, the welding gun assembly is arranged on the second bracket, the driving assembly is configured to drive the second bracket to rotate relative to the first bracket so as to drive the welding gun assembly to swing relative to the welding seam tracking sensor, and as the welding seam tracking sensor on the first bracket is relatively fixed in the swinging process of the welding gun assembly, the detection precision of the welding seam tracking sensor is improved.

Inventors

  • HE JIZHONG

Assignees

  • 无锡威卓智能机器人有限公司

Dates

Publication Date
20260505
Application Date
20201119

Claims (10)

  1. 1. The welding device is characterized by comprising a first bracket, a driving assembly, a welding gun assembly, a second bracket and a welding seam tracking sensor; The weld tracking sensor is fixed on the first bracket and comprises a laser used for emitting laser; The driving assembly is fixed on the first bracket and is provided with an output shaft, and the output shaft is connected with the second bracket so as to enable the second bracket to rotate around the output shaft; The welding gun assembly is arranged on the second bracket, the second bracket is provided with a hollow inner cavity, and the laser is at least partially accommodated in the inner cavity; the second bracket comprises an arc-shaped part, the arc-shaped part is provided with an inner cambered surface facing the first bracket, and the inner cavity is formed between the inner cambered surface and the first bracket; the driving assembly is configured to drive the second bracket to rotate relative to the first bracket so as to drive the welding gun assembly to swing relative to the welding seam tracking sensor.
  2. 2. The welding apparatus of claim 1 wherein a first mounting portion is provided at an end of the first bracket adjacent the welding gun assembly, wherein a receiving hole is provided in the first mounting portion, wherein the laser is received in the receiving hole, and wherein the arcuate portion surrounds the first mounting portion.
  3. 3. The welding apparatus of claim 1 wherein said first bracket defines a receiving slot therein, said drive assembly being at least partially received in said receiving slot.
  4. 4. The welding apparatus of claim 1, wherein the weld tracking sensor further comprises a camera positioned at an end of the first bracket remote from the welding gun assembly, the camera configured to receive the reflected laser light emitted by the laser.
  5. 5. The welding apparatus of claim 1 wherein said second bracket further comprises an annular portion connected to said arcuate portion, said welding gun assembly being secured to said annular portion.
  6. 6. The welding apparatus of claim 5 wherein said arcuate portion is located above said first bracket and said annular portion is located in front of said first bracket.
  7. 7. The welding apparatus of claim 6 wherein the inner annular surface of the annular portion has the same curvature as the inner arcuate surface of the arcuate portion.
  8. 8. The welding apparatus of claim 1 wherein the welding gun assembly includes a weld head mount and a weld head, the weld head mount including a second mount and a third mount coupled to each other, the second mount for coupling with the second bracket, the third mount for coupling with the weld head.
  9. 9. The welding apparatus of claim 8 wherein said third mounting portion is tubular and said welding gun assembly further includes a wire conduit for passing welding wire therethrough, said wire conduit passing through the tube of said third mounting portion and into said welding head.
  10. 10. The welding apparatus of claim 9 wherein said third mounting portion is provided with a cooling structure comprising a cooling tube circumferentially disposed about an inner surface of said tubular third mounting portion.

Description

Welding device Description of the division The scheme is a divisional application of Chinese patent application entitled welding device, application date of 2020, 11, 19 and application number of 202011306404.5. Technical Field The application relates to the technical field of welding, in particular to a welding device. Background During the welding process, the welding gun often needs to swing reciprocally between the two sides of the weld (from one side of the weld to the other side of the weld and back again from the other side of the weld) while moving along the weld. The reciprocating swing of the welding head is used for controlling the flow of welding molten metal and obtaining necessary weld joint width, thereby improving the welding quality. With the development of production, the requirements on the welding quality of products are higher and higher, and meanwhile, the labor intensity of workers is required to be improved, so that automatic welding is a current development direction. The automatic welding is to drive the welding gun to move through a mechanical arm or an industrial robot, and a welding seam tracking sensor is needed to detect the welding seam in the automatic welding process, so that the welding gun is guided to move. In the automatic welding process, how to control the flow of welding molten metal and obtain necessary weld width without affecting the detection precision of a weld tracking sensor due to the swing of a welding head is a technical problem to be solved in the field. Disclosure of Invention The embodiment of the application provides a welding device which comprises a first support, a driving assembly, a welding gun assembly, a second support and a welding seam tracking sensor, wherein the welding seam tracking sensor is fixed on the first support, the driving assembly is fixed on the first support, the welding gun assembly is arranged on the second support, and the driving assembly is configured to drive the second support to rotate relative to the first support so as to drive the welding gun assembly to swing relative to the welding seam tracking sensor. In some embodiments, the weld tracking sensor includes a laser for emitting laser light, the second bracket having a hollow interior cavity, the laser being at least partially housed in the interior cavity. In some embodiments, the second stent includes an arcuate section having an intrados facing the first stent, the lumen being formed between the intrados and the first stent. In some embodiments, a first mounting portion is provided at an end of the first bracket adjacent to the welding gun assembly, a receiving hole is provided in the first mounting portion, the laser is received in the receiving hole, and the arc portion surrounds the first mounting portion. In some embodiments, the first bracket is provided with a receiving slot, and the driving assembly is at least partially received in the receiving slot. In some embodiments, the weld tracking sensor further comprises a camera positioned at an end of the first bracket remote from the welding gun assembly, the camera configured to receive the reflected laser light emitted by the laser. In some embodiments, the second bracket further comprises an annular portion connected to the arcuate portion, the welding gun assembly being secured to the annular portion. In some embodiments, the arcuate portion is located above the first bracket and the annular portion is located in front of the first bracket. In some embodiments, the curvature of the inner annulus of the annular portion is the same as the intrados of the arcuate portion. In some embodiments, the welding gun assembly includes a welding head mount including a second mount for connection with the second bracket and a third mount for connection with the welding head, and a welding head. In some embodiments, the third mounting portion is tubular and the welding gun assembly further includes a wire conduit for passing welding wire therethrough, the wire conduit passing through the tube of the third mounting portion and into the welding head. In some embodiments, an insulating member is disposed between the second mounting portion and the second bracket. In some embodiments, the drive assembly includes a motor, an encoder coupled to the motor, and a decelerator coupled between the motor and the second bracket, wherein the encoder is configured to detect at least a rotational angle of an output shaft of the motor. Drawings The application will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein: FIG. 1 is a schematic perspective view of a welding apparatus according to some embodiments of the present application; FIG. 2 is a cross-sectional view of a welding apparatus according to some embodiments of the application; FIG. 3 is a schematic illustra