Square billet butt welding system

Abstract

The utility model relates to a square billet butt welding system which comprises a mother billet, a sub-blank; the rotating device comprises a supporting seat and a rotating shaft; the rotating part is in a C-shaped weight shape or a C-shaped round cake shape with an opening in one side, and the opening of the rotating part is provided with a containing groove allowing the child blank or the mother blank to enter and be placed in the center of the rotating part; the rotating part is positioned at the upper part of the supporting seat and is in sliding connection with the supporting seat, so that the rotating part rotates around the center; a holding portion; a rotation drive; the multiple rotating devices are linearly arranged, the mother blank and the child blank are fixed to be located on the same straight line, a linear driver is arranged on the lower side of the rotating device on the side of the child blank, the child blank is allowed to be close to the mother blank along the straight line, or the child blank and the mother blank are away from the child blank after being fixedly connected; a welding robot; the butt welding device has the beneficial effects that by means of the automatic welding effect of the industrial robot, a turnover and preheating matched tool is designed, and butt welding of high-quality primary and secondary blanks is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical processing technology, specifically relating to a billet butt welding system. Background Technology

[0002] Specialty alloy materials, due to their superior physical, chemical, and mechanical properties, are widely demanded in various high-tech fields such as aerospace, medical devices, automotive, energy, chemical and petrochemical, and military defense. These materials typically possess characteristics such as high strength, high temperature resistance, corrosion resistance, and wear resistance, making them suitable for applications in extreme environments. Therefore, the research and innovation of specialty alloy materials are particularly important to meet the increasingly stringent requirements of different industries. Developing new alloy systems with unique properties requires repeated performance testing experiments and the statistical analysis and summarization of a large amount of experimental data, including experimental conditions, equipment parameters, and test results, to identify patterns and draw conclusions.

[0003] Currently, special alloy material rolling experiments are in the performance testing stage, requiring extensive rolling tests and data. However, alloy materials are still in the stage of manual welding followed by rolling of the master billet. The quality of manual welding is highly dependent on the skills and experience of the operators. Differences in skill levels among workers can lead to inconsistent weld quality. Long working hours can cause worker fatigue, affecting welding accuracy and consistency. In addition, distraction can also lead to welding defects. Manual welding is relatively slow, especially when handling complex or high-volume tasks, and its efficiency is significantly lower than automated welding. Weld quality directly affects test data. Improving welding efficiency and quality is urgent, and the need for combined operation of specialized tooling and industrial robots is increasing, especially given the current application of industrial robots.

[0004] Therefore, there is an urgent need for a technical solution that utilizes industrial robots and specialized tooling to achieve butt welding of the master billet and the daughter billet during the alloy material rolling experiment. Summary of the Invention

[0005] To overcome the problems of manual butt welding and surfacing in existing technologies, and to solve the coordination issues between industrial robots and specialized tooling, this utility model designs a system that utilizes a rotatable support component and employs a reciprocating flipping and preheating method to achieve coordination with an industrial robot, thereby achieving automated welding of mother and daughter billets. The technical solution adopted by this utility model is: a square billet butt welding system, comprising:

[0006] Mother blank;

[0007] blank;

[0008] A rotating device, comprising:

[0009] Support base;

[0010] The rotating part is C-shaped like a weight or C-shaped like a disc with an opening on one side. The rotating part has a placement groove at the opening that allows the blank or the mother blank to enter and be placed in the center of the rotating part.

[0011] The rotating part is located on the upper part of the support base and is slidably connected to the support base, so that the rotating part rotates around the center.

[0012] The holding part is a component located around the placement groove for fixing the mother blank or daughter blank that enters the placement groove;

[0013] A rotational drive drives the rotating part to rotate around the center.

[0014] Multiple rotating devices are arranged linearly to fix the mother blank and the daughter blank on the same straight line, and a linear drive is provided on the lower side of the rotating device on the daughter blank side, allowing the daughter blank to move closer to the mother blank along a straight line, or the daughter blank and the mother blank to move away from the daughter blank after being fixedly connected;

[0015] A welding robot is located to the side of the docking point between the sub-blank and the mother blank, and is equipped with a welding actuator at the execution end to weld the sub-blank and the mother blank.

[0016] Furthermore,

[0017] The blank side is provided with one or more of the aforementioned rotating devices;

[0018] The mother blank side is provided with two or more of the aforementioned rotating devices, and the distance between the two rotating devices closest to the daughter blank side is not less than four meters.

[0019] Furthermore, it also includes:

[0020] The preheating section preheats the mating ends of the mother blank and the daughter blank.

[0021] Furthermore,

[0022] The preheating section is an electromagnetic preheating device, which is hollow inside and has induction coils arranged around its circumference. The blank and the mother blank can pass through the middle of the preheating section in a straight line.

[0023] Furthermore, a linear drive is provided on the lower side of the preheating section, allowing the preheating section to move to the outside of the blank after heating.

[0024] Furthermore,

[0025] The linear drive of the preheating section and the rotating device located on the blank side is a gear and rack meshing drive, and the two share the same rack track.

[0026] Furthermore,

[0027] The rotating devices located on the side of the blank and the blank, at least one of which is equipped with the rotation drive.

[0028] Furthermore,

[0029] The rotation drive consists of a servo motor located on the support base and an arc-shaped rack located around the circumference of the rotating part. The servo motor drives the rotating part to rotate through the meshing of the gear and rack.

[0030] Furthermore,

[0031] The upper part of the support base is provided with an arc-shaped groove, and a rolling bearing or ball bearing is provided in the arc-shaped groove;

[0032] The rotating part is fitted with the support base with a clearance, engages with the upper part of the support base, and slides and rotates around the center by means of the rolling bearing or ball bearing.

[0033] Further.

[0034] The joint ends of the sub-blank and the mother blank are provided with beveled surfaces;

[0035] The two beveled surfaces cause the ends of the blank and the mother blank to form a triangular prism structure;

[0036] When the blank and the mother blank are joined, one side of the triangular prism structure is made parallel, and they gradually come into contact, forming two V-shaped grooves on both sides.

[0037] The advantages of this utility model over the prior art are: by utilizing the automatic welding effect of industrial robots, a rotating and preheating fitting fixture is designed to achieve high-quality butt welding of mother and daughter blanks. Attached Figure Description

[0038] Figure 1 This is an overall system axis view of a specific embodiment of the present utility model;

[0039] Figure 2 This is a top view of the overall system according to a specific embodiment of the present utility model;

[0040] Figure 3 This is an axial view of the lower drive component on the blank side of a specific embodiment of the present invention;

[0041] Figure 4 This is an axial view of the rotating device according to a specific embodiment of the present invention (without a rotation drive);

[0042] Figure 5 This is a cross-sectional view of the sliding connection of the rotating device according to a specific embodiment of the present invention;

[0043] Figure 6 This is a side view of the rotating device (equipped with a rotation drive) according to a specific embodiment of the present utility model;

[0044] Figure 7 This is a schematic diagram showing the docking state of the sub-blank and the mother blank in a specific embodiment of this utility model;

[0045] The annotation is represented as follows:

[0046] 110 - Mother blank; 120 - Daughter blank; 130 - Beveled surface;

[0047] 200 - Rotating device; 210 - Support base; 220 - Rotating part; 230 - Clamping part; 240 - Mounting slot; 250 - Rotation drive;

[0048] 300 - Preheating section;

[0049] 400-Welding Robot. Detailed Implementation

[0050] The technical solutions in the embodiments are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] To overcome the problems of manual welding and surfacing in existing technologies, and to solve the coordination issues between industrial robots and specialized tooling, this invention designs a rotatable support component that employs reciprocating flipping and preheating to achieve automated welding of mother and daughter blanks in conjunction with an industrial robot. Please refer to [link / reference]. Figures 1 to 7 The technical solution adopted in this specific embodiment is: a billet butt welding system, comprising:

[0052] Mother blank 110;

[0053] The sub-billet 120; in this embodiment, both the mother billet 110 and the sub-billet 120 are square billets. However, this technical solution can also be used when joining other irregularly shaped billets. Generally, the mother billet 110 refers to material without special requirements to meet the rolling process requirements. The sub-billet 120 refers to the experimental section for alloy material testing. Typically, the length of the sub-billet 120 does not meet the rolling process requirements, so it must be used in conjunction with the mother billet 110.

[0054] Rotating device 200, please refer to Figure 4 The rotating device 200 includes:

[0055] Support base 210;

[0056] The rotating part 220 is C-shaped like a weight or a C-shaped disc with an opening on one side. The rotating part 220 has a placement groove 240 at its opening, allowing the sub-blank 120 or the mother blank 110 to enter and be placed at the center of the rotating part 220. Generally, the opening of the placement groove 240 can be chamfered to facilitate blank entry, but the placement groove 240 must pass through the center of the rotating part 220, typically the center of a circle. Because the rotating part 220 needs to rotate, if the blank is not located at the center, its position will shift. This is detrimental to the edge-finding and positioning of the welding robot 400. Of course, if the welding robot 400 is equipped with a vision system, it is possible to place the blank outside the center, or with a slight deviation, which should also fall within the scope of protection of this technical solution.

[0057] The rotating part 220 is located on the upper part of the support base 210 and is slidably connected to the support base 210, so that the rotating part 220 rotates around the center;

[0058] The holding part 230 is located around the placement groove 240 and is used to fix the mother blank 110 or daughter blank 120 that enters the placement groove 240. It should be noted that the holding part 230 is not required to be provided on every rotating device 200. Since the core of this technology is that the rotating part 220 rotates in the upper half of the vertical circle, there will never be a situation where the opening is facing downwards. Therefore, whether the blank is fixed or not has little impact on this technical solution. Of course, it is feasible to provide a holding part 230 on both sides of the mother and daughter blanks for the overall stability of the equipment.

[0059] There are many ways to implement the blessing part 230. In this embodiment, please refer to... Figure 4 It utilizes angle steel and elongated holes in the angle steel, and uses bolts for positioning and fixing.

[0060] A rotary drive 250 drives the rotating part 220 to rotate around the center. Similarly, it should be noted that in this technical solution, not all rotating devices 200 are equipped with rotary drives 250, but there must be a synchronous rotary drive 250 on both sides of the mother and daughter blanks. Since it is only a flipping operation, the required torque is not large, and setting one rotary drive 250 on one side is sufficient to achieve the purpose. This should also be within the protection scope of this technical solution.

[0061] Please see Figure 1 and Figure 2 Multiple rotating devices 200 are arranged linearly to fix the mother blank 110 and the daughter blank 120 on the same straight line. A linear drive is provided on the lower side of the rotating device 200 on the side of the daughter blank 120, allowing the daughter blank 120 to move closer to the mother blank 110 along a straight line, or the daughter blank 120 to move away from the mother blank 110 after being fixedly connected to the mother blank 110.

[0062] A welding robot 400 is located on the side of the docking point of the sub-blank 120 and the mother blank 110, and is equipped with a welding actuator at the execution end to weld the sub-blank 120 and the mother blank 110.

[0063] In other embodiments,

[0064] One or more of the aforementioned rotating devices 200 are provided on the side of the blank 120;

[0065] Two or more rotating devices 200 are provided on the side of the mother billet 110, and the distance between the two rotating devices 200 near the daughter billet 120 is not less than four meters. It should be noted that, due to rolling process requirements, the length of the rolled billet generally needs to be greater than four meters, therefore the distance between the two rotating devices 200 near the daughter billet 120 is not less than four meters. Please refer to [link / reference]. Figure 1 In this embodiment, the length of the blank 110 is 12 meters.

[0066] In other embodiments, to improve welding quality, the following are also preferred:

[0067] The preheating unit 300 preheats the mating ends of the mother blank 110 and the daughter blank 120.

[0068] Preferred,

[0069] The preheating section 300 is an electromagnetic preheating device that is hollow inside and has induction coils arranged around its circumference. The sub-blank 120 and the mother blank 110 can pass through the middle of the preheating section 300 in a straight line.

[0070] Furthermore, a linear drive is provided on the lower side of the preheating section 300, allowing the preheating section 300 to move to the outside of the blank 120 after heating.

[0071] Please see Figure 3 In some embodiments,

[0072] The linear drive of the preheating section 300 and the rotating device 200 located on the side of the blank 120 is a rack and pinion drive, and the two share the same rack track. In the figure, only the platform / trolley where the preheating section 300 is located is shown, and the specific structure of the preheating section 300 is not shown.

[0073] As described above, in some embodiments,

[0074] At least one of the rotating devices 200 located on the side of the sub-blank 120 and the mother blank 110 is provided with the rotation drive 250.

[0075] In some embodiments, preferably, to improve the quality of synchronization control.

[0076] The rotary drive 250 consists of a servo motor located on the support base 210 and an arc-shaped rack located around the rotating part 220. The servo motor drives the rotating part 220 to rotate by means of the meshing of the gear and rack.

[0077] Please see Figure 5 In some embodiments, the support 210 and the rotating part 220 are in a sliding fit relationship as follows:

[0078] The upper part of the support base 210 is provided with an arc-shaped groove, and a rolling bearing or ball bearing is provided in the arc-shaped groove;

[0079] The rotating part 220 is clearance-fitted with the support base 210, engages with the upper part of the support base 210, and slides and rotates around the center by means of the rolling bearing or ball bearing.

[0080] Please see Figure 7 In order to improve welding quality and compatibility with industrial robots.

[0081] The mating ends of the sub-blank 120 and the mother blank 110 are provided with a beveled surface 130;

[0082] The two oblique cut surfaces 130 cause the ends of the sub-blade 120 and the mother blank 110 to form a triangular prism structure;

[0083] When the sub-blank 120 and the mother blank 110 are joined, one side of the triangular prism structure is made parallel, gradually abutting each other, and two V-shaped grooves are formed on both sides.

[0084] In practical implementation: This technical solution, combined with specialized tooling, provides a welding method as follows:

[0085] A method for butt welding of a billet includes: a billet butt welding system, and the following steps;

[0086] The opening of the mounting slot 240 faces upward;

[0087] The sub-blank 120 and the mother blank 110 respectively enter the lower mounting groove 240;

[0088] The rotating part 220 positions the sub-blank 120 and the mother blank 110 on the same straight line;

[0089] The sub-blank 120 gradually approaches and abuts against the mother blank 110;

[0090] Before the sub-blank 120 gradually approaches the mother blank 110, or after it comes into contact with it, the preheating section 300 preheats the ends of the sub-blank 120 and the mother blank 110.

[0091] After preheating, the preheating section 300 moves away from the docking point of the sub-blank 120 and the mother blank 110;

[0092] A rotation drive 250 located on any of the rotation devices 200 on the side of the sub-blank 120 and the mother blank 110 drives the rotation part 220 to deflect by 90 degrees or less, so that the V-grooves on both sides of the sub-blank 120 and the mother blank 110, which were facing to the sides during docking, become facing upwards.

[0093] The welding robot 400 begins welding from the top of the upward-facing V-groove;

[0094] After the welding robot 400 welds one or more layers, the rotary drive 250 drives the rotating part 220 to rotate 180 degrees or less, so that the V-groove on the unwelded side becomes facing upwards.

[0095] The welding robot 400 welds one or more layers at the bottom of the current V-groove;

[0096] Repeat the above welding steps until the V-groove is fully welded;

[0097] The preheating section 300 and the rotating device 200 on the side of the sub-blank 120 are away from the welded sub-blank 120 and the mother blank 110;

[0098] The sub-blank 120 and the mother blank 110 are transported out.

[0099] In specific implementation, this embodiment uses a V-groove in conjunction with an industrial robot. The rotating device 200 supports the synchronous rotation of the mother and daughter blanks, and a track is set for the daughter blank 120 to avoid interference between the welding robot 400 and the preheating unit 300 at the welding point, thus achieving the purpose of automated welding.

[0100] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A billet butt welding system, characterized by comprising: Comprising: a blank (110); a sub-blank (120); a rotating device (200), the rotating device (200) comprising: a support base (210); a rotating part (220), which is C-shaped or C-shaped with one side open, the rotating part (220) is provided with a setting groove (240) at the opening, which allows the sub-blank (120) or the blank (110) to enter and be placed in the center of the rotating part (220); the rotating part (220) is located on the upper part of the support base (210) and is in sliding connection with the support base (210), so that the rotating part (220) rotates around the center; a holding part (230), which is located on the side of the setting groove (240) and is used to fix the blank (110) or the sub-blank (120) entering the setting groove (240); a rotating drive (250) for driving the rotating part (220) to rotate around the center; a plurality of rotating devices (200) are arranged linearly, the blank (110) and the sub-blank (120) are fixed on the same straight line, and the rotating device (200) on the side of the sub-blank (120) is provided with a linear drive, which allows the sub-blank (120) to approach the blank (110) along the straight line, or the sub-blank (120) and the blank (110) to move away from the sub-blank (120) after being fixedly connected; a welding robot (400) is located on the side of the butt joint point of the sub-blank (120) and the blank (110), and the execution end is provided with a welding executor to weld the sub-blank (120) and the blank (110).

2. The square blank butt welding system according to claim 1, wherein: more than one rotating device (200) is provided on the side of the sub-blank (120); more than two rotating devices (200) are provided on the side of the blank (110), and the distance between the two rotating devices (200) close to the side of the sub-blank (120) is not less than four meters.

3. The billet butt welding system of claim 1, wherein Further comprising: a preheating part (300) for preheating the butt joint end of the blank (110) and the sub-blank (120).

4. The square blank butt welding system according to claim 3, wherein: the preheating part (300) is an electromagnetic preheating device, which is hollow inside and is provided with an induction coil around the circumference, and the sub-blank (120) and the blank (110) can pass through the middle part of the preheating part (300) along the straight line; and the linear drive is provided on the lower side of the preheating part (300), which allows the preheating part (300) to move to the outside of the sub-blank (120) after being heated.

5. The square blank butt welding system according to claim 4, wherein: the linear drive of the preheating part (300) and the rotating device (200) on the side of the sub-blank (120) is a gear and rack meshing drive, and they share the same rack track.

6. The square blank butt welding system according to claim 1, wherein: at least one of the rotating devices (200) on the side of the sub-blank (120) and the blank (110) is provided with the rotating drive (250).

7. The square blank butt welding system according to claim 1, wherein: The rotating drive (250) is a servo motor on the support base (210) and a circular arc rack on the circumference of the rotating part (220), the servo motor drives the rotating part (220) to rotate through the meshing of gear and rack.

8. The billet butt welding system according to claim 1, characterized in that, The upper part of the support base (210) is provided with an arc-shaped groove, and a rolling bearing or a ball is arranged in the arc-shaped groove; The rotating part (220) is in clearance fit with the support base (210), is clamped on the upper part of the support base (210), and rotates around the center through the rolling bearing or the ball.

9. The billet butt welding system according to claim 1, characterized in that, The butt joint end of the daughter billet (120) and the mother billet (110) is provided with a bevel (130); The two bevels (130) make the end part of the daughter billet (120) and the mother billet (110) form a triangular prism structure, and when the daughter billet (120) and the mother billet (110) are butted, one side of the triangular prism structure is parallel, gradually abuts, and two V-shaped grooves are formed on both sides.

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