CN-120286802-B - Welding control method and apparatus

CN120286802BCN 120286802 BCN120286802 BCN 120286802BCN-120286802-B

Abstract

The application discloses a welding control method and device. The method comprises the steps of detecting target welding seam parameters in the process of welding the first welding plate and the second welding plate, wherein the target welding seam parameters comprise the welding seam surplus height of a former welding position and/or the welding seam gap of a latter welding position, the former welding position and the latter welding position are adjacent to each other in the length direction of the welding seam of the first welding plate and the second welding plate, the target welding parameters corresponding to the target welding seam parameters are determined according to a preset corresponding relation, the target welding parameters comprise target welding speed and/or target wire feeding speed, and the welding executing structure is controlled to weld the latter welding position in a welding mode according to the target welding parameters. The embodiment of the application can improve the uniformity of the welding seam, ensure the quality of the welding seam and improve the yield of products.

Inventors

MA WENYU
YU YANG
ZHANG FEIHU
XU DECHAO
ZHANG BOMING
MOU SHUKUN
JIANG JUN
HAN LONGSHUAI
WANG YUE
HUANG XU
LI XUETAO
ZHANG YONGQIANG
ZHENG XUEBIN
HAO YULIN
Fu can
LI YADONG
HU KAIGUANG
JU JIANBIN

Assignees

首钢集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250409

Claims (6)

1. A method of welding control, the method comprising: In the process of welding the first welding plate and the second welding plate, detecting target welding seam parameters, wherein the target welding seam parameters comprise the welding seam surplus height of the previous welding seam position, and the previous welding seam position and the subsequent welding seam position are adjacent to each other in the length direction of welding seams of the first welding plate and the second welding plate; determining target welding parameters corresponding to the target welding seam parameters according to a preset corresponding relation, wherein the target welding parameters comprise target welding speed and/or target wire feeding speed; controlling a welding execution structure to carry out welding in the subsequent welding position according to the target welding parameters; The corresponding relation comprises a first corresponding relation, and the determining the target welding parameter corresponding to the target welding parameter according to the preset corresponding relation comprises the following steps: determining a welding speed and/or a wire feeding speed corresponding to the weld seam surplus height according to the first corresponding relation, wherein the weld seam surplus height and the target welding speed are positively correlated, and the weld seam surplus height and the target wire feeding speed are negatively correlated; The first correspondence is determined based on the following formula (1) and/or formula (2): Formula (1) Wherein, the Indicating the target welding speed as described above, A first correction coefficient is indicated and is used, Indicating a preset initial welding speed, the welding speed, Representing the weld seam surplus height of the previous splice welding position detection, Indicating a preset target weld seam surplus height, and/or Formula (2) Wherein, the Indicating the target wire feed speed in question, A second correction coefficient is indicated and is used to indicate, Indicating a preset initial wire feed speed.
2. The method of claim 1, wherein after said controlling the weld performing structure to perform the splice welding at the subsequent splice welding location in accordance with the target welding parameter, the method further comprises: processing the splice welding plate based on a hot stamping process under the condition that the splice welding plate is placed in a hot stamping die; The hot stamping die is provided with a plurality of cooling water channels, and the cooling water channels are used for cooling the tailor-welded blank after hot stamping.
3. The method of claim 2, wherein the cooling rate of the tailor welded blank by the cooling water channel is inversely related to a target parameter of the cooling water channel, the target parameter being a target minimum distance between an outer edge of the cooling water channel and the hot stamping die surface; The target minimum distance is determined based on the following steps: The method comprises the steps of performing hot stamping simulation test on the hot stamping die, and obtaining the temperature of a die surface area corresponding to each cooling water channel, and the temperature difference value and the temperature ratio between the temperature of each die surface area and the average temperature of the die surface after the test is completed; An adjustment step of adjusting a minimum distance according to the temperature ratio on the basis of an initial minimum distance within a preset minimum distance range for each cooling water channel, and executing the acquisition step again after the minimum distance adjustment of each cooling water channel; And a determining step, wherein the acquiring step and the adjusting step are repeatedly executed until the average temperature of the die surface is smaller than or equal to a preset temperature, the maximum temperature difference between the temperatures of the die surface areas is smaller than or equal to a preset temperature difference, and the minimum distance of each current cooling water channel is taken as the target minimum distance.
4. A method according to claim 3, wherein said adjusting the minimum distance according to said temperature ratio comprises: according to the temperature ratio, the minimum distance is adjusted based on the following formula (5): h2=h1×(1-B);(5) Wherein h2 represents the minimum distance after adjustment, h1 represents the minimum distance before adjustment, and B represents the temperature ratio.
5. The method of claim 3, wherein the predetermined minimum distance is in the range of 2mm to 15mm, the predetermined temperature is 200 degrees celsius, and the predetermined temperature difference is 30 degrees celsius.
6. An electronic device comprising one or more processors and one or more memories having stored therein at least one piece of program code loaded and executed by the one or more processors to implement the operations performed by the method of any of claims 1-5.

Description

Welding control method and apparatus Technical Field The application belongs to the technical field of welding, and particularly relates to a welding control method and equipment. Background The splice welding plate can splice weld plates with different thicknesses and strengths together, and product parts are formed through hot stamping, so that the splice welding plate is widely applied to various fields, such as the automobile field. In the process of welding by splice welding, the edges of the butt joint surfaces of two plates are difficult to be perfectly flat or smooth, so that the consistency of the quality of welding seams is difficult to be ensured, and the quality of the splice welding plates is possibly poor. Disclosure of Invention The embodiment of the application provides a welding control method and equipment, which can further improve the uniformity of welding seams at least to a certain extent, ensure the quality of the welding seams and improve the yield of products. Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application. According to a first aspect of an embodiment of the present application, there is provided a welding control method, the method including: Detecting target welding seam parameters in the process of welding the first welding plate and the second welding plate, wherein the target welding seam parameters comprise the welding seam surplus height of the previous welding seam position and/or the welding seam gap of the subsequent welding seam position, and the previous welding seam position and the subsequent welding seam position are adjacent to each other in the length direction of the welding seam of the first welding plate and the second welding plate; determining target welding parameters corresponding to the target welding seam parameters according to a preset corresponding relation, wherein the target welding parameters comprise target welding speed and/or target wire feeding speed; And controlling the welding execution structure to carry out the splice welding at the later splice welding position according to the target welding parameters. Optionally, the corresponding relationship includes a first corresponding relationship, and determining, according to a preset corresponding relationship, a target welding parameter corresponding to the target welding seam parameter includes: And determining a welding speed and/or a wire feeding speed corresponding to the weld seam surplus height according to the first corresponding relation, wherein the weld seam surplus height and the target welding speed are positively correlated, and the weld seam surplus height and the target wire feeding speed are negatively correlated. Optionally, the first correspondence is determined based on the following formula (1) and/or formula (2): wherein v 1 denotes the target welding speed, n 1 denotes a first correction coefficient, v 0 denotes a preset initial welding speed, h denotes a weld seam surplus height detected at the previous splice welding position, h 0 denotes a preset target weld seam surplus height, and/or Where ω 1 represents the target wire feed speed, n 2 represents a second correction factor, and ω 0 represents a preset initial wire feed speed. Optionally, the corresponding relationship includes a second corresponding relationship, and determining, according to a preset corresponding relationship, a target welding parameter corresponding to the target welding seam parameter includes: and determining a welding speed and/or a wire feeding speed corresponding to the welding gap according to the second corresponding relation, wherein the welding gap is in negative correlation with the target welding speed, and the welding gap is in positive correlation with the target wire feeding speed. Optionally, the second correspondence is determined based on the following formula (3) and/or formula (4): Wherein v 1 denotes the target welding speed, n 3 denotes a third correction coefficient, v 0 denotes a preset initial welding speed, J 0 denotes a preset target weld gap, J denotes a weld gap detected at the subsequent splice welding position, and/or Where ω 1 represents the target wire feed speed, n 4 represents a fourth correction factor, and ω 0 represents a preset initial wire feed speed. Optionally, after the controlling the welding execution structure to perform the welding at the subsequent welding position according to the target welding parameter, the method further includes: processing the splice welding plate based on a hot stamping process under the condition that the splice welding plate is placed in a hot stamping die; The hot stamping die is provided with a plurality of cooling water channels, and the cooling water channels are used for cooling the tailor-welded blank after hot stamping. Optionally, the cooling rate of the tailor welded blank by the cooling water channel is inv