Kettle heating plate profiling welding equipment

Abstract

The present invention discloses a kettle heating plate contour welding device, comprising: a frame, a positioning fixture assembly, the positioning fixture assembly is arranged at the welding station, the positioning fixture assembly is provided with a fixed plate and a rotating seat, the fixed plate is fixedly connected to the welding platform, the rotating seat is rotatably connected to the fixed plate, the rotating seat is used to position the kettle to be welded and the heating plate, and the rotating seat drives the kettle to be welded and the heating plate to rotate at a uniform speed during welding; a fixing assembly, the fixing assembly is located above the positioning fixture assembly, the fixing assembly comprises a fixing arm and a clamping arm, the fixing arm is connected to the frame, the clamping arm is slidably connected to the fixing arm up and down, a roller is provided at the lower end of the clamping arm, the roller faces the positioning fixture module, and the roller abuts against the heating plate during welding; a laser head, the laser head is connected to the clamping arm, and the laser head and the clamping arm are arranged in the same direction.

Description

Technical Field

[0001] The invention relates to the field of kettle heating plate welding, and in particular to a kettle heating plate contour welding device. Background Art

[0002] At present, electric kettles usually have a heating plate welded on the bottom of the kettle. However, the heating plate is often not completely flat during the production process, and the edge of the heating plate is often uneven. This means that when the heating plate is welded to the kettle, laser welding at the uneven position is likely to cause cold welding or welding through. Summary of the invention

[0003] The main purpose of the present invention is to provide a kettle heating plate contour welding device, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the kettle heating plate profiling welding device proposed in the present invention comprises: a frame, the frame is provided with a welding platform, and the welding platform is provided with a welding station;

[0005] A positioning fixture assembly, the positioning fixture assembly is arranged at the welding station, the positioning fixture assembly is provided with a fixed plate and a rotating seat, the fixed plate is fixedly connected to the welding platform, the rotating seat is rotatably connected to the fixed plate, the rotating seat is used to position the kettle to be welded and the heating plate, and the rotating seat drives the kettle to be welded and the heating plate to rotate at a uniform speed during welding;

[0006] A fixing assembly, the fixing assembly is located above the positioning fixture assembly, the fixing assembly includes a fixing arm and a clamping arm, the fixing arm is connected to the frame, the clamping arm is connected to the fixing arm in an up-and-down sliding manner, a roller is provided at the lower end of the clamping arm, the roller faces the positioning fixture module, and the roller abuts against the heating plate during welding;

[0007] A laser head is connected to the clamping arm, and the laser head and the clamping arm are arranged in the same direction.

[0008] Optionally, two rollers are provided at the lower end of the clamping arm, and the laser head is arranged between the two rollers. The two rollers and the laser head are located on the same arc at the irradiation point of the heating plate, and the radius of the arc is consistent with the radius of the welding path of the kettle to be welded.

[0009] Optionally, the fixed arm is provided with a slide rail, which extends up and down, a sliding block is provided between the fixed arm and the clamping arm, the sliding block is provided with a slide groove extending up and down, the sliding block is slidably connected to the slide rail, the clamping arm is fixedly connected to the sliding block, a tension spring is provided between the fixed arm and the sliding block, two ends of the tension spring are respectively connected to the fixed arm and the sliding block, and the tension spring is used to pull the sliding block and the clamping arm upward.

[0010] Optionally, a connecting plate is provided at the upper end of the clamping arm, the connecting plate is fixedly connected to the sliding block, an arc-shaped sliding groove is provided on the plate surface of the connecting plate, and the clamping arm is slidably connected to the connecting plate along the arc-shaped sliding groove.

[0011] Optionally, the positioning fixture assembly also includes a first positioning column, which is located at the outer side of the rotating seat, the lower end of the first positioning column is fixedly connected to the fixed plate, the upper end of the first positioning column extends upward, and the upper end of the first positioning column is provided with a first positioning pulley, and the rolling surface of the first positioning pulley is provided with an avoidance groove. During welding, the first positioning pulley rolls along the outer side wall of the kettle to be welded, and the avoidance groove faces the welding point position of the inner side wall of the kettle to be welded, so that the rolling surfaces on the upper and lower sides of the avoidance groove are respectively located on the upper and lower sides of the welding point.

[0012] Optionally, a second positioning pulley and a third positioning pulley are also provided at the upper end of the first positioning column, and the second positioning pulley and the third positioning pulley are respectively located on the left and right sides of the first fixed pulley. During welding, the first positioning pulley, the second positioning pulley and the third positioning pulley all roll along the outer wall of the kettle to be welded.

[0013] Optionally, the positioning fixture assembly also includes a second positioning column, which is located on the outside of the rotating seat, the lower end of the second positioning column is fixedly connected to the fixed plate, the upper end of the second positioning column extends upward, the plane where the second positioning column and the first positioning column are located passes through the center of the heating plate, and the upper end of the second positioning column is provided with a fourth positioning pulley, and during welding, the fourth positioning pulley rolls along the outer wall of the kettle to be welded.

[0014] Optionally, the positioning fixture assembly also includes a third positioning column and a fourth positioning column, the third positioning column and the fourth positioning column are both located at the outer side of the rotating seat, the lower ends of the third positioning column and the fourth positioning column are fixedly connected to the fixing plate, the upper ends of the third positioning column and the upper ends of the fourth positioning column extend upward, the planes where the third positioning column and the fourth positioning column are located pass through the center of the heating plate, the upper ends of the third positioning column and the fourth positioning column are respectively provided with a fifth positioning pulley and a sixth positioning pulley, the outer end faces of the fifth pulley and the sixth pulley are provided with an annular flange, during welding, the fifth positioning pulley and the sixth positioning pulley both roll along the upper end face of the side wall of the kettle to be welded, and the annular flange abuts against the outer wall of the kettle to be welded.

[0015] Optionally, the heating plate contour welding equipment also includes a motion component, which includes a first sliding rail, a second sliding rail and a third sliding rail, the first sliding rail is along the X-axis direction, the second sliding rail is along the Y-axis direction, and the third sliding rail is along the Z-axis direction. The first sliding rail is fixedly connected to the welding platform, the second sliding rail is slidably connected to the first sliding rail in the X-axis direction, the third sliding rail is slidably connected to the second sliding rail in the Y-axis direction, and the fixed arm is slidably connected to the third sliding rail in the Z-axis direction.

[0016] Optionally, two welding stations are provided on the welding platform, and the positioning fixture assembly is provided on both welding stations.

[0017] The technical solution of the present invention adopts a clamping arm that slides up and down, and a laser head that moves in unison with the clamping arm. During welding, the kettle to be welded and the heating plate are first pre-positioned, and then the pre-positioned kettle to be welded and the heating plate are placed on the rotating seat, so that the kettle to be welded and the heating plate begin to rotate at a uniform speed with the rotating seat, and then the clamping arm is adjusted to a suitable position, the focal length is adjusted, and the roller at the lower end of the clamping arm is placed at the position of the heating plate to be welded. At this time, the clamping arm is in a state of sliding upwards, and then as the rotating seat rotates at a uniform speed, the heating plate to be welded A circle of the welding position passes under the roller. When the roller passes the raised part of the heating plate, the roller will be forced upward under the force of the raised part of the heating plate, causing the clamping arm to slide upward, and the laser head slides upward with the clamping arm. When the roller passes the recessed part of the heating plate, the clamping arm slides downward under the action of its own gravity, and the laser head slides downward with the clamping arm, so that the laser head slides upward at the raised part of the welding position of the heating plate itself, and slides downward at the recessed part, keeping the focal length consistent, so as to avoid false welding and welding through, and ensure the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a kettle heating plate profiling welding device of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the fixing components of the middle kettle heating plate profiling welding equipment;

[0021] Figure 3 for Figure 2 An exploded view of the fixing components;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the positioning fixture assembly of the kettle heating plate profiling welding device;

[0023] Figure 5 for Figure 4 A partial enlarged view of area A.

[0024] Description of Figure Numbers:

[0025] Label name Label name 100 frame 200 Welding platform 210 Welding station 220 Positioning fixture assembly 221 Fixed plate 222 Swivel seat 223 First positioning column 224 First positioning pulley 225 Avoidance slot 226 Second positioning pulley 227 The third positioning pulley 228 Second positioning column 229 Fourth positioning pulley 230 The third positioning column 231 Fifth positioning pulley 232 Fourth positioning column 233 Sixth positioning pulley 234 Annular flange 300 Fixed components 310 Fixed arm 311 Slide rails 320 Clamping arm 321 Scroll Wheel 322 Connecting plate 323 Arc chute 330 Slide Block 331 Chute 400 Motion components 410 First sliding track 420 Second sliding track 430 The third sliding track 500 Laser Head 600 Kettle to be welded 700 Heating plate 710 Welding path

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a heating plate 700 contour welding device.

[0031] In the embodiment of the present invention, Figure 1 The heating plate 700 profiling welding device comprises: a frame 100, a positioning fixture assembly 220, a fixing assembly 300, a laser head 500, and a moving assembly 400. The frame 100 is provided with a welding platform 200, and the welding platform 200 has a welding station 210. The positioning fixture assembly 220 is arranged on the welding station 210. The fixing assembly 300 is arranged above the positioning fixture assembly 220. The laser head 500 is fixedly connected with the fixing assembly 300. The laser head 500 is also above the positioning fixture assembly 220, and the laser head 500 faces the positioning fixture assembly 220.

[0032] Specifically, Figure 2 , Figure 3 The fixing assembly 300 includes a fixing arm 310 and a clamping arm 320. The fixing arm 310 is fixedly connected to the welding platform 200. A slide rail 311 is provided on the fixing arm 310. The slide rail 311 extends in the up-down direction. A sliding block 330 is provided between the fixing arm 310 and the clamping arm 320. A sliding groove 331 is provided on one side of the sliding block 330. The sliding block 330 is connected to the slide rail 311 through the sliding groove 331. The clamping arm 320 is fixedly connected to the sliding block 330, so that the clamping arm 320 can As the sliding block 330 slides up and down along the slide rail 311, the lower end of the clamping arm 320 is provided with a roller 321, the clamping arm 320 extends downward, and the lower end of the clamping arm 320 faces the kettle 600 to be welded and the heating plate 700 located on the positioning fixture assembly 220, and the laser head 500 is fixedly connected to the clamping arm 320, and the direction of the laser head 500 is consistent with the direction of the clamping arm 320, and the Korean post is also aligned with the kettle 600 to be welded and the heating plate 700 on the positioning fixture assembly 220;

[0033] Further, as shown in 4, the fixing assembly 300 includes a fixing plate 221 and a rotating seat 222. The fixing plate 221 is arranged on the welding station 210 and is fixedly connected to the welding platform 200. The fixing plate 221 is provided with a rotating seat 222. The rotating seat 222 is driven by a servo motor to rotate at a uniform speed. The upper part of the rotating seat 222 is used to position and place the kettle 600 and the heating plate 700 to be welded.

[0034] During welding, the kettle 600 to be welded and the heating plate 700 are first pre-positioned, and then the pre-positioned kettle 600 to be welded and the heating plate 700 are placed on the rotating seat 222, so that the kettle 600 to be welded and the heating plate 700 begin to rotate at a uniform speed with the rotating seat 222, and then the clamping arm 320 is adjusted to a suitable position, the focal length is adjusted, and the roller 321 at the lower end of the clamping arm 320 is placed at the position of the heating plate 700 to be welded. At this time, the clamping arm 320 is in an upward sliding state, and then as the rotating seat 222 rotates at a uniform speed, a circle of the position to be welded of the heating plate 700 passes under the roller 321, When the roller 321 passes the raised part of the heating plate 700, the roller 321 will be forced upward under the force of the raised part of the heating plate 700, so that the clamping arm 320 slides upward, and the laser head 500 slides upward with the clamping arm 320. When the roller 321 passes the raised part of the heating plate 700, the clamping arm 320 slides downward under the action of its own gravity, and the laser head 500 slides downward with the clamping arm 320, so that the laser head 500 slides upward at the raised part of the welding position of the heating plate 700 itself, and slides downward at the recessed part, so as to keep the focal length consistent, thereby preventing cold welding and welding through, and ensuring the quality of welding.

[0035] Further, please refer to Figure 1 , Figure 2 In the embodiment of the present invention, two rollers 321 are provided at the lower end of the clamping arm 320, and the emitting end of the laser head 500 is provided between the two rollers 321. The irradiation points of the two rollers 321 and the laser head 500 on the heating plate 700 are located on the same arc, and the radius of the arc is consistent with the radius of the welding path 710 of the kettle 600 to be welded. Specifically, the contact points of the lasers emitted by the two rollers 321 and the laser head 500 and the heating plate 700 are on the same arc line, and the arc The radius of the line is consistent with the radius of the welding point path of the heating plate 700, so the two rollers 321 and the irradiation point of the laser all move relatively along the welding path 710 of the heating plate 700 and the kettle, so that the bumps on the welding path 710 of the heating plate 700 can be fed back to the two rollers 321, and then fed back to the laser head 500 through the clamping arm 320, thereby ensuring that the laser head 500 can move up and down synchronously with the bumps of the heating plate 700, thereby ensuring the quality of welding.

[0036] Further, please refer to Figure 3 In the embodiment of the present invention, a tension spring is provided between the fixed arm 310 and the sliding block 330 , and the two ends of the tension spring are respectively connected to the fixed arm 310 and the sliding block 330 , and the tension spring is used to pull the sliding block 330 and the clamping arm 320 upward. Specifically, in the present embodiment, the tension spring extends downward by 10 mm under the tension of the clamping arm 320 and the sliding block 330. According to the degree of the concave-convex of the heating plate 700, for example, the concave-convex range of the heating plate 700 is between +2 mm and -2 mm, then during welding, the roller 321 is brought into contact with the heating plate 700, and the tension spring is stretched downward to 7 mm. When the roller 321 passes through a -2 mm recessed position, the tension spring can continue to stretch downward to 9 mm. When the roller 321 passes through a 2 mm protrusion, the tension spring is shortened upward to be stretched downward by 5 mm. Thus, the tension spring can not only meet the free up and down movement of the laser head 500, but also provide a buffer when the laser head 500 descends, and is smoother when the laser head 500 rises, thereby ensuring a smooth welding process.

[0037] Further, please refer to Figure 2 , Figure 3 In the embodiment of the present invention, a connecting plate 322 is provided at the upper end of the clamping arm 320, and the connecting plate 322 is fixedly connected to the sliding block 330. An arc-shaped groove 331323 is provided on the plate surface of the connecting plate 322. The clamping arm 320 is slidably connected to the connecting plate 322 along the arc-shaped groove 331323. By setting the arc-shaped groove, the clamping arm 320 can slide, thereby changing the direction of the laser head 500, and then changing the radius of the welding wheel diameter, so that kettles and heating plates 700 of different models and sizes can be welded.

[0038] Further, please refer to Figure 4 , Figure 5 In the embodiment of the present invention, a first positioning column 223 is provided on the outer side of the rotating seat 222, and the first positioning column 223 extends up and down, and the lower end is fixedly connected to the fixing plate 221, and the upper end is provided with a first positioning pulley 224, and a circle of avoidance groove 225 is provided in the middle of the rolling surface of the first positioning pulley 224, thereby dividing the rolling surface of the first positioning pulley 224 into two parts, an upper and a lower part. During welding, after the kettle 600 to be welded is fixed on the rotating seat 222, the first positioning pulley 224 abuts against the outer side wall of the kettle 600 to be welded, and the orientation position of the avoidance groove 225 is the welding point position, so that the upper and lower parts of the roller 321 surfaces are respectively located above and below the welding point path, this setting can not only abut the upper and lower sides of the welding point from the outer side wall of the kettle 600 to be welded to prevent local deformation of the kettle welding part during rotation, but also prevent the welding point from causing burns to the first positioning pulley.

[0039] Further, please continue to refer to Figure 4 , Figure 5 In the embodiment of the present invention, a second positioning pulley 226 and a third positioning pulley 227 are further provided at the upper end of the first positioning column 223. The second positioning pulley 226 and the third positioning pulley 227 are respectively located on the left and right sides of the first positioning pulley 224. During the welding process, the first positioning pulley 224, the second positioning pulley 226 and the third positioning pulley 227 all roll along the outer wall 321 of the kettle 600 to be welded, thereby also abutting against the kettle 600 to be welded at three positions, ensuring that the left and right areas of the welding point are arc-shaped during welding, thereby avoiding deformation due to high temperature during welding.

[0040] Further, please continue to refer to Figure 4 , Figure 5 In the embodiment of the present invention, the positioning fixture assembly 220 is further provided with a second positioning column 228, the second positioning column 228 is extended up and down, the lower end is fixedly connected to the fixing plate 221, and the upper end is provided with a fourth positioning pulley 229, the fourth positioning column 232 is located on the opposite side of the first positioning column 223 relative to the kettle 600 to be welded, the plane where the first positioning column 223 and the second positioning column are located passes through the center of the heating plate 700, that is, a diameter of the heating plate 700 is located on the two lines of the two, so that the fourth positioning pulley 229 and the first positioning pulley 224 respectively position the kettle 600 to be welded from both ends of a diameter of the heating plate 700, thereby increasing the positioning accuracy and preventing the kettle 600 to be welded from deformation.

[0041] Further, please continue to refer to Figure 4 , Figure 5In this embodiment, the positioning fixture assembly 220 is further provided with a third positioning column 230 and a fourth positioning column 232, the third positioning column 230 and the fourth positioning column 232 are both located on the outside of the rotating seat 222, the lower ends of the third positioning column 230 and the fourth positioning column are both fixedly connected to the fixing plate 221, the upper ends of the third positioning column 230 and the upper ends of the fourth positioning column 232 are both extended upward, the planes where the third positioning column 230 and the fourth positioning column 232 are located pass through the center of the heating plate 700, the upper ends of the third positioning column 230 and the fourth positioning column 232 are respectively provided with a fifth positioning pulley 231 and a sixth positioning pulley 233, the outer end surfaces of the fifth pulley and the sixth pulley are provided with an annular flange 234, when welding, the fifth positioning pulley 231 and the sixth positioning pulley 233 are both along the kettle 600 to be welded The upper end surface of the side wall rolls, and the annular flange 234 abuts against the outer side of the kettle 600 to be welded; a diameter of the heating plate 700 is on the line connecting the fifth positioning pulley 231 and the sixth positioning pulley 233, and the line connecting the fifth positioning pulley 231 and the sixth positioning pulley 233 is roughly the same as the line connecting the fourth positioning pulley 229 and the first positioning pulley 224, so that the first positioning pulley 224, the fourth positioning pulley 229, the fifth positioning pulley 231 and the sixth positioning pulley 233 respectively position the kettle 600 to be welded from four directions to ensure the accuracy of the position of the kettle 600 to be welded during the welding process. In addition, the fifth positioning pulley 231 and the sixth positioning pulley 233 also limit the upper end of the side wall of the kettle 600 to be welded to prevent it from loosening up and down, thereby improving the accuracy of welding.

[0042] Further, please continue to refer to Figure 1 In this embodiment, a motion component 400 is further provided on the frame 100, and the motion component 400 includes a first sliding rail 410, a second sliding rail 420 and a third sliding rail 430. The first sliding rail 410 is along the X-axis direction, the second sliding rail 420 is along the Y-axis direction, and the third sliding rail 430 is along the Z-axis direction. The first sliding rail 410 is fixedly connected to the welding platform 200, the second sliding rail 420 is slidably connected to the first sliding rail 410 in the X-axis direction, the third sliding rail 430 is slidably connected to the second sliding rail 420 in the Y-axis direction, and the fixed arm 310 is slidably connected to the third sliding rail 430 in the Z-axis direction. The motion component 400 can enable the laser head 500 to move in the X, Y, and Z directions to meet different welding requirements.

[0043] Further, please continue to refer to Figure 1 In this embodiment, the welding platform 200 is provided with two welding areas, and each welding area is provided with a positioning fixture assembly 220, so that two kettles 600 to be welded can be installed in sequence for welding, thereby improving welding efficiency.

[0044] The technical solution of the present invention is achieved by adopting settings.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A kettle heating plate profiling welding device, characterized in that: include: A frame, wherein the frame is provided with a welding platform, and the welding platform is provided with a welding station; A positioning fixture assembly, the positioning fixture assembly is arranged at the welding station, the positioning fixture assembly is provided with a fixed plate and a rotating seat, the fixed plate is fixedly connected to the welding platform, the rotating seat is rotatably connected to the fixed plate, the rotating seat is used to position the kettle to be welded and the heating plate, and the rotating seat drives the kettle to be welded and the heating plate to rotate at a uniform speed during welding; A fixing assembly, the fixing assembly is located above the positioning fixture assembly, the fixing assembly includes a fixing arm and a clamping arm, the fixing arm is connected to the frame, the clamping arm is connected to the fixing arm in an up-and-down sliding manner, a roller is provided at the lower end of the clamping arm, the roller faces the positioning fixture module, and the roller abuts against the heating plate during welding; A laser head, the laser head is connected to the clamping arm, and the laser head and the clamping arm are arranged in the same direction; The positioning fixture assembly also includes a first positioning column, the first positioning column is located at the outer side of the rotating seat, the lower end of the first positioning column is fixedly connected to the fixing plate, the upper end of the first positioning column extends upward, the upper end of the first positioning column is provided with a first positioning pulley, the rolling surface of the first positioning pulley is provided with an avoidance groove, when welding, the first positioning pulley rolls along the outer side wall of the kettle to be welded, and the avoidance groove faces the welding point position of the inner side wall of the kettle to be welded, so that the rolling surfaces on the upper and lower sides of the avoidance groove are respectively located on the upper and lower sides of the welding point; The upper end of the first positioning column is also provided with a second positioning pulley and a third positioning pulley, the second positioning pulley and the third positioning pulley are respectively located on the left and right sides of the first positioning pulley, and during welding, the first positioning pulley, the second positioning pulley and the third positioning pulley all roll along the outer side wall of the kettle to be welded; The positioning fixture assembly also includes a second positioning column, the second positioning column is located on the outer side of the rotating seat, the lower end of the second positioning column is fixedly connected to the fixing plate, the upper end of the second positioning column extends upward, the plane where the second positioning column and the first positioning column are located passes through the center of the heating plate, and the upper end of the second positioning column is provided with a fourth positioning pulley, and during welding, the fourth positioning pulley rolls along the outer side wall of the kettle to be welded; The positioning fixture assembly also includes a third positioning column and a fourth positioning column, the third positioning column and the fourth positioning column are both located at the outer side of the rotating seat, the lower ends of the third positioning column and the fourth positioning column are fixedly connected to the fixing plate, the upper ends of the third positioning column and the upper ends of the fourth positioning column extend upward, the planes where the third positioning column and the fourth positioning column are located pass through the center of the heating plate, the upper ends of the third positioning column and the fourth positioning column are respectively provided with a fifth positioning pulley and a sixth positioning pulley, the outer end faces of the fifth positioning pulley and the sixth positioning pulley are provided with an annular flange, when welding, the fifth positioning pulley and the sixth positioning pulley both roll along the upper end face of the side wall of the kettle to be welded, and the annular flange abuts against the outer side wall of the kettle to be welded; The heating plate contour welding equipment also includes a motion component, which includes a first sliding track, a second sliding track and a third sliding track, the first sliding track is along the X-axis direction, the second sliding track is along the Y-axis direction, and the third sliding track is along the Z-axis direction. The first sliding track is fixedly connected to the welding platform, the second sliding track is slidably connected to the first sliding track in the X-axis direction, the third sliding track is slidably connected to the second sliding track in the Y-axis direction, and the fixed arm is slidably connected to the third sliding track in the Z-axis direction.

2. The kettle heating plate contour welding device according to claim 1, characterized in that: Two rollers are provided at the lower end of the clamping arm, and the emitting end of the laser head is provided between the two rollers. The two rollers and the laser head are located on the same arc at the irradiation point of the heating plate, and the radius of the arc is consistent with the radius of the welding path of the kettle to be welded.

3. The kettle heating plate contour welding device according to claim 1, characterized in that: The fixed arm is provided with a slide rail, which extends up and down. A sliding block is provided between the fixed arm and the clamping arm. The sliding block is provided with a slide groove extending up and down. The sliding block is slidably connected to the slide rail. The clamping arm is fixedly connected to the sliding block. A tension spring is provided between the fixed arm and the sliding block. Two ends of the tension spring are respectively connected to the fixed arm and the sliding block. The tension spring is used to pull the sliding block and the clamping arm upward.

4. The kettle heating plate contour welding device according to claim 3, characterized in that: A connecting plate is provided at the upper end of the clamping arm, and the connecting plate is fixedly connected to the sliding block. An arc-shaped sliding groove is provided on the plate surface of the connecting plate, and the clamping arm is slidably connected to the connecting plate along the arc-shaped sliding groove.

5. The kettle heating plate contour welding device according to any one of claims 1 to 4, characterized in that: The welding platform is provided with two welding stations, and both welding stations are provided with the positioning fixture assembly.

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