Self-adjusting clamping mechanism and method for stirring welding

Abstract

The invention discloses a self-adjusting clamping mechanism and method for stirring welding, and relates to the technical field of fixture equipment accessory devices.The self-adjusting clamping mechanism for stirring welding comprises a base and clamping mechanisms, the clamping mechanisms are evenly installed on the base, and each clamping mechanism further comprises an adjusting device, a rotating assembly, a lifting mechanism, a clamping mechanism and a top fixing device; a plurality of first mounting seats are arranged on the base, the adjusting devices penetrate through the corresponding first mounting seats to be rotationally connected with the base, the connecting end of the rotating assembly is connected with the top ends of the adjusting devices, the connecting end of the lifting mechanism is connected with the top end of the rotating assembly, and a plurality of through holes are formed in the rotating mechanism. The top fixing devices penetrate through the corresponding through holes to be rotationally connected with the rotating mechanism, and the clamping mechanisms are evenly installed on the lifting mechanism. According to the device, the position and the angle are adjusted through adjusting clamping of the device and matching with the device, so that the flexibility of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fixture equipment attachments, and in particular to a self-adjusting clamping mechanism and method for stirring welding. Background Art

[0002] Stir welding is a solid-state connection technology, which is mainly used for welding light metals such as aluminum, but can also be applied to other materials such as magnesium alloys, copper alloys, titanium alloys and even some plastics. Stir welding forms joints without melting materials, thus avoiding problems that may occur in traditional fusion welding, such as thermal cracks, pores and welding deformation. Stir welding technology is widely used in many industries due to its high efficiency and high-quality welding characteristics, including aerospace, shipbuilding, automobile manufacturing, rail transportation and other fields. These fields usually require high-strength and high-reliability joints, and have strict control requirements on welding deformation. In addition, since the heat input in the FSW process is relatively low, it is particularly beneficial for heat-sensitive materials and can reduce the performance degradation of the heat-affected zone (HAZ). During stir welding, equipment is required to clamp it adaptively. After cleaning the surface and removing the oxide layer, it is rotated and welded. The most common welding component clamping equipment is a clamp; a clamp is a device used to clamp stir-welded components in industrial production processes, and it has been widely used in the field of welding clamping; when using the existing clamp, first ensure that the surfaces of the two parts to be welded are clean and flat, remove the oxide layer and other impurities to ensure good welding quality, and accurately position and fix the two parts to be welded on the workbench. This step is crucial to ensure the stability of the welding process and the quality of the final joint. Select a suitable clamp or positioning device according to the shape and size of the workpiece, and adjust the welding parameters such as rotation speed, forward speed, axial pressure, etc. according to factors such as material type, thickness and required joint strength. The selection of these parameters directly affects the welding quality and efficiency; the existing public patent CN201280071460.2 discloses a support device intended to be supported in a supporting manner on one or more workpieces connected by friction stir welding, which supports the weld formed between the two workpieces by friction stir welding. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a self-adjusting clamping mechanism and method for stirring welding. The present invention adopts adjustable clamping on both sides and then fixes on the top, which greatly improves the clamping stability of the equipment. The rotation mechanism is used for adjustment, which greatly improves the welding flexibility of the equipment, ensures that the equipment rotates evenly at different angles, and performs orderly stirring welding.

[0004] The present invention achieves the above technical objectives through the following technical means.

[0005] A self-adjusting clamping mechanism for stirring welding comprises a base and a clamping mechanism; the clamping mechanism is installed on the base; the clamping mechanism comprises an adjusting device, a rotating assembly, a lifting mechanism, a clamping mechanism and a top fixing device, a plurality of groups of first mounting seats are arranged on the base, the adjusting devices pass through corresponding first mounting seats and are rotatably connected with the base, the connecting end of the rotating assembly is connected to the top of the adjusting device, the connecting end of the lifting mechanism is connected to the top of the rotating assembly, a plurality of groups of through holes are arranged on the rotating mechanism, the top fixing device passes through corresponding through holes and is rotatably connected with the rotating mechanism, and the clamping mechanism is evenly installed on the lifting mechanism.

[0006] In the above scheme, the adjusting device includes a support rod, a first electric push rod, an adjusting rod, a slider, a first screw rod, a first motor and an adjusting disk; the array support rods respectively pass through the corresponding first mounting seats and are rotatably connected to the base, the array support rods are respectively provided with mounting grooves, the connecting ends of the array adjusting rod and the array first electric push rods are respectively hinged to the corresponding mounting grooves, the output ends of the array first electric push rods are respectively hinged to one end of the corresponding adjusting rods, the array sliders are respectively provided with second capstans, the other ends of the array adjusting rods respectively pass through the corresponding second capstans and are rotatably connected to the corresponding sliders, the adjusting disk is provided with array slide grooves, the array sliders respectively pass through the corresponding slide grooves and are slidably connected to the adjusting disk, the adjusting disk is provided with an array machine base, the connecting ends of the array first motors are respectively connected to the connecting ends of the corresponding machine bases, the output ends of the array first motors respectively pass through the corresponding machine bases and are connected to the connecting ends of the corresponding first screw rods, the array sliders are respectively provided with threaded holes, and the array first screw rods respectively pass through the corresponding threaded holes and are threadedly connected to the corresponding sliders.

[0007] In the above scheme, the rotating assembly includes an electric turntable, a mounting platform, a column and a pressure ring. The connecting end of the electric turntable is connected to the top of the adjusting disk, the connecting end of the mounting platform is connected to the output end of the electric turntable, the array column is set on the mounting platform, and the pressure ring is set on the top of the column.

[0008] In the above scheme, the lifting mechanism includes a hydraulic cylinder, a limit rod, a limit plate, a connecting plate, a connecting rod, an elbow, an arc plate and a bottom top block; the two hydraulic cylinders are arranged on the mounting platform, the limit rod is placed between the hydraulic cylinders and arranged on the mounting platform, a limit plate is arranged at the output end of the hydraulic cylinder, a top block is arranged above the limit plate, a connecting plate is slidably arranged on the limit rod, and a groove is opened on both sides of the connecting plate with the limit rod as the center, a connecting seat is arranged on the connecting plate away from the limit rod end, the connecting seat is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the bottom of the arc plate, and the groove is used to limit the limit plate; a bottom top block is arranged on the limit rod near the arc plate end.

[0009] In the above scheme, the arc plate includes two semicircular plates, and the bottom top block is a hinge structure, which is hinged on the semicircular plates respectively. When the hydraulic cylinder works, it drives the limit plate upward, and the limit plate pushes the connecting plate, so that the connecting rod drives the semicircular plate to rotate.

[0010] In the above scheme, the clamping mechanism includes a motor, a second screw rod, a limit joint, an arc mold, a rubber strip, a spring, a buckle and an adapter joint; arc grooves are provided on both groups of arc plates, and the two groups of arc molds pass through the corresponding arc grooves and are slidably connected to the corresponding arc plates respectively. A driving seat is provided on the arc mold, and a motor is provided on the driving seat. The output end of the motor is connected with the second screw rod, and the second screw rod is threadedly connected to the arc plate. The connecting ends of the array limit joints are respectively connected to the connecting ends of the corresponding arc molds. The arc plate is provided with limit grooves, and the array limit joints pass through the corresponding limit grooves and are slidably connected to the corresponding arc plate respectively. The connecting ends of the two groups of rubber strips are respectively connected to the connecting ends of the corresponding arc molds. Multiple groups of long grooves are provided on the two groups of arc molds, and multiple groups of buckles pass through the corresponding long grooves and are slidably connected to the corresponding arc molds respectively. Multiple groups of springs are fixedly mounted on the corresponding buckles, and the connecting ends of multiple groups of adapter joints are rotatably connected to the corresponding buckles.

[0011] In the above scheme, the top fixing device includes a driving rod, a driven rod, a second electric push rod and a positioning rod; the driving rod and the driven rod are rotatably connected to the pressure ring, and multiple groups of positioning rods are rotatably connected to the corresponding driving rods and driven rods respectively. A positioning seat is provided on the pressure ring, the second electric push rod passes through the positioning seat and is rotatably connected to the pressure ring, and the output end of the second electric push rod is rotatably connected to the driving rod.

[0012] The above scheme also includes lateral positioning bolts and rotating knobs; the arc-shaped plate in the lifting mechanism is symmetrically provided with tightening holes, and four groups of lateral positioning bolts are respectively passed through the corresponding tightening holes and threadedly connected to the arc-shaped plates on the corresponding sides, and multiple groups of tightening holes are matched with rotating holes, and multiple groups of rotating knobs are respectively passed through the corresponding rotating holes and threadedly connected to the corresponding arc-shaped plates.

[0013] A clamping method of a self-adjusting clamping mechanism for stirring welding comprises the following steps:

[0014] S1: When the workpieces need to be stirred and welded, the two parts of the workpieces to be welded are placed on the clamping mechanism. The clamping mechanism is in an outward tilted lifting state in an idle state. The workpieces are placed on the arc mold, and the lifting mechanism is started to lift them upward. During the lifting process, the lifting mechanism pushes the arc plates under the arc plates to align the two sets of arc plates. After the alignment is completed, the clamping mechanism is started to align the workpieces. The workpieces are adaptively fixed on both sides of the two sets of workpieces, so that the equipment clamping can be more suitable for workpieces of different shapes and sizes;

[0015] S2: After the longitudinal fixation is completed, the lifting mechanism is started to lift the arc plate to the top, so that the top fixing component is fixed to the top of the matched workpiece. During this process, the top fixing component is evenly distributed and connected in a hexagonal state. When it rotates, it is gradually clamped from the outside to the inside to reduce the exposed space on the top. It can be pushed and clamped from the outside to the inside, or it can be pulled and fixed from the inside;

[0016] S3: After the horizontal and vertical sides are fixed, the rotating mechanism can be started to drive the equipment to rotate as a whole, and the fixing holes on the chassis are connected and fixed to the predetermined position to ensure that the equipment rotates evenly at different angles and perform orderly stirring welding;

[0017] S4: When the stirring workpiece needs to be adjusted in angle, start the adjusting device, rotate the adjusting device on the base to clamp or unfold it at an adaptive angle, and adjust the overall angle of the equipment to meet different stirring welding processing requirements.

[0018] The beneficial effects of the present invention are:

[0019] (1) During the process of stirring welding the workpiece, the adjustable clamping on both sides is used to fix it with the top, which greatly improves the clamping stability of the equipment.

[0020] (2) The device is adjusted in a hexagonal shape so that during the process of adjusting the angle, the device can also provide a stable support structure through its own triangular support, thereby providing stability for the device adjustment.

[0021] (3) The workpiece is clamped and the equipment is fixed by lifting the bottom, which greatly improves the automation level of the equipment.

[0022] (4) The device can adjustably clamp the uneven surface of the workpiece by connecting the hexagonal rods, so that it can be adaptively clamped with the maximum contact area, thereby improving the adjustment performance of the device clamping; the top fixing device in the present invention is used to reduce the exposed space at the top, play the role of pressing the top of the workpiece, and increase the stability when handling the workpiece.

[0023] (5) In the present invention, a motor is called to rotate the equipment so that the equipment can rotate evenly and orderly at different angles, thereby ensuring the effective implementation of stirring welding and completing effective switching of multiple angles and multiple positions.

[0024] (6) The present invention adopts a sliding adaptive clamping method to complete the side fixation of the workpiece, and also realizes full-angle fixation of the workpiece by adjusting the fixing bolts, which greatly improves the fixing stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a structural schematic diagram of a self-adjusting clamping mechanism for stirring welding;

[0026] Figure 2 It is a front view schematic diagram of a self-adjusting clamping mechanism for stirring welding;

[0027] Figure 3 for Figure 2 A side view schematic diagram of

[0028] Figure 4 for Figure 2 Schematic diagram of top view;

[0029] Figure 5 for Figure 2 Schematic diagram of the arc plate and elbow connection involved;

[0030] Figure 6 for Figure 1 Schematic diagram of the connection between the buckle and the arc mold involved;

[0031] Figure 7 for Figure 2 Schematic diagram of the column and pressure ring structure involved;

[0032] Figure 8 for Figure 2 Schematic diagram of the connection between the electric turntable and the adjustment disk involved.

[0033] Reference numerals:

[0034] 1-base; 201-first mounting seat; 202-through hole; 301-support rod; 302-first electric push rod; 303-adjusting rod; 304-sliding block; 305-first screw rod; 306-first motor; 307-adjusting plate; 308-mounting slot; 309-second capstan seat; 310-sliding slot; 311-machine base; 312-threaded hole; 401-electric turntable; 402-mounting table; 403-column; 404-pressing ring; 501-hydraulic cylinder; 502-limiting rod; 503-limiting plate; 504-connecting plate; 505-connecting plate Connecting rod; 506-elbow; 507-arc plate; 508-bottom top block; 509-limiting hole; 510-slot; 511-connecting seat; 601-motor; 602-second screw rod; 603-limiting joint; 604-arc mold; 605-rubber strip; 606-spring; 607-buckle; 608-adapter joint; 609-arc slot; 610-driven rod; 703-second electric push rod; 704-positioning rod; 705-positioning seat; 801-lateral positioning bolt; 802-turning knob; 803-tightening hole; 804-turning hole. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Combined with Figure 1 , Figure 2 and Figure 8The adjusting mechanism includes a support rod 301, a first electric push rod 302, an adjusting rod 303, a slider 304, a first screw rod 305, a first motor 306 and an adjusting disk 30; the base 1 is located at the bottom of the entire self-adjusting clamping mechanism for stirring welding, and six groups of mounting seats 201 are evenly distributed on the base 1. The six groups of support rods 301 respectively pass through the corresponding first mounting seats 201 and rotate with the base 1. The six groups of first push rods 302 are connected to the six groups of support rods 301. The mounting grooves 308 are located on the six groups of support rods 301. The outputs of the six groups of first electric push rods 302 The ends are respectively hinged to the output ends of the corresponding adjusting rods 303, the connecting ends of the six groups of adjusting rods 303 and the six groups of first electric push rods 302 are respectively hinged to the corresponding mounting grooves 308, the six groups of sliders 304 are located below the adjusting disk 307, and the six groups of sliders 304 are each provided with a second capstan 309, the other connecting ends of the six groups of adjusting rods 303 respectively pass through the corresponding second capstan 309 and are rotatably connected to the corresponding sliders 304, the adjusting disk 307 is provided with six groups of sliding grooves 310, and the six groups of sliders 304 respectively pass through the corresponding sliding grooves 310 and are slidably connected to the adjusting disk 307. The six machine bases 311 are located on the adjusting disk, the connecting sections of the six machine bases 311 are respectively connected to the connecting ends of the corresponding six first motors 306, the output ends of the six first motors 306 are respectively connected to the connecting ends of the corresponding first screw rods 305 through the corresponding machine bases 311, and the six sliders 304 are respectively provided with threaded holes 312, and the six first screw rods 305 are respectively threadedly connected to the corresponding sliders 304 through the corresponding threaded holes 312.

[0039] Combined with Figure 1 The rotating assembly includes an electric turntable 401, a mounting platform 402, a column 403 and a pressure ring 404; the electric turntable 401 is located between the mounting platform 402 and the adjustment disk 307. The connecting end of the electric turntable 401 is connected to the top of the adjustment disk 307, and the connecting end of the mounting platform 402 is connected to the output end of the electric turntable 401. Two groups of columns 403 are located above the mounting platform 402, and the connecting ends of the two groups of columns 403 are connected to the connecting ends of the mounting platform 402. The connecting end of the pressure ring 404 is connected to the top of the two groups of columns 403.

[0040] Combined with Figure 2 , Figure 5 and Figure 7The lifting mechanism includes a hydraulic cylinder 501, a limiting rod 502, a limiting plate 503, a connecting plate 504, a connecting rod 505, an elbow 506, an arc plate 507 and a bottom top block 508; two groups of hydraulic cylinders 501 are located on the mounting platform 402, and the connecting ends of the two groups of hydraulic cylinders 501 are connected to the top of the mounting platform 402. The limiting rod 502 is located between the two groups of hydraulic cylinders 501, and the connecting end of the limiting rod 502 is connected to the top of the mounting platform 402. The two groups of limiting plates 503 are located on the two groups of hydraulic cylinders 501, and their connecting ends are respectively connected to the output ends of the corresponding hydraulic cylinders 501, and the connecting ends of the two groups of bottom top blocks 508 are respectively connected to the top of the corresponding limiting plates 503. The connecting plate 504 is located on the limiting rod 502, and a limiting hole 509 is provided on the connecting plate 504. The limiting rod 502 passes through the limiting hole 509 and is slidably connected to the connecting plate 504. The connecting plate 504 is matched with a slot 510. The elbow is located at the top of the limiting rod 502, the connecting end of the elbow 506 is connected to the top of the limiting rod 502, the two groups of arc plates 507 are rotatably connected to the elbow 506, the two groups of arc plates 507 and the connecting plate 504 are provided with a connecting seat 511, and the connecting ends of the four groups of connecting rods 505 pass through the corresponding connecting seats 511 and are rotatably connected to the corresponding arc plates 507 and the connecting plate 504.

[0041] Combined with Figure 5 and Figure 6 The clamping mechanism includes a motor 601, a second screw rod 602, a limit joint 603, an arc mold 604, a rubber strip 605, a spring 606, a buckle 607 and an adapter joint 608; arc grooves 609 are provided on both sets of arc plates 507, and the two sets of arc molds 604 are respectively slidably connected with the corresponding arc plates 507 through the corresponding arc grooves 609, and a driving seat 610 is provided on the side of the arc mold 604. The connecting ends of the four sets of motors 601 are respectively connected with the connecting ends of the corresponding driving seats 610, and the output ends of the four sets of motors 601 are respectively connected with the connecting ends of the corresponding second screw rods 602 through the corresponding driving seats 610. Screw holes 611 are provided on both sets of arc plates 507, and the four sets of second screw rods 602 are respectively passed through the corresponding The screw hole 611 is threadedly connected to the corresponding arc plate 507, the connecting ends of the four groups of limit joints 603 are respectively connected to the connecting ends of the corresponding arc molds 604, the two groups of arc plates 507 are equipped with limit grooves 612, the four groups of limit joints 603 respectively pass through the corresponding limit grooves 612 and are slidably connected to the corresponding arc plates 507, the connecting ends of the two groups of rubber strips 605 are respectively connected to the connecting ends of the corresponding arc molds 604, the two groups of arc molds 604 are equipped with multiple groups of long grooves 613, multiple groups of buckles 607 respectively pass through the corresponding long grooves 613 and are slidably connected to the corresponding arc molds 604, multiple groups of springs 606 are respectively fixedly mounted on the corresponding buckles 607, and the connecting ends of multiple groups of adapter joints 608 are respectively rotatably connected to the corresponding buckles 607.

[0042] Combined with Figure 4 and Figure 6 The top fixing device includes a driving rod 701, a driven rod 702, a second electric push rod 703, a positioning rod 704, a lateral positioning bolt 801 and a knob 802; the driving rod 701 and multiple groups of driven rods 702 respectively pass through corresponding through holes 202 and are rotatably connected to the pressure ring 404, multiple groups of positioning rods 704 are rotatably connected to the corresponding driving rods 701 and driven rods 702, a positioning seat 705 is provided on the pressure ring 404, the second electric push rod 703 passes through the positioning seat 705 and is rotatably connected to the pressure ring 404, and the output end of the second electric push rod 703 is rotatably connected to the connecting end of the driving rod 701. Both groups of arc plates 507 are provided with tightening holes 803, and four groups of lateral positioning bolts 801 are respectively passed through the corresponding tightening holes 803 and threadedly connected with the corresponding arc plates 507. Multiple groups of tightening holes 803 are matched with rotating holes 804, and multiple groups of rotating knobs 802 are respectively passed through the corresponding rotating holes 804 and threadedly connected with the corresponding arc plates 507.

[0043] The specific implementation steps of the embodiment of the self-adjusting clamping mechanism for stirring welding of the present invention are as follows:

[0044] S1: After the equipment is started, the lifting and lowering are adjusted first. Two groups of parts to be welded are placed on the corresponding arc molds 604. The two groups of arc molds 604 are tilted outward in an idle state. After the workpieces are placed, the bottom hydraulic cylinder 501 is started to lift. During the lifting process of the bottom hydraulic cylinder 501, the bottom top block 508 is driven to push the two arc plates 507. The bottom top block 508 is concave in the center and convex on both sides, and the two groups of arc plates 507 are retracted;

[0045] S2: During the folding process, the two sets of arc plates 507 rotate on the elbow 506, and the limit plate 503 is clamped into the connecting plate 504. The connecting plate 504 is limited and stably lifted and lowered by the buckling and clamping method, so that the connecting plate 504 slides on the limit plate 503 in an orderly manner;

[0046] S3: The connecting plate 504 is driven to rotate by lifting and lowering the connecting plate 504, and the relative positions of the connecting plate 504 and the elbow 506 are changed to stably align the arc plate 507 and form a stable supporting structure with the connecting rod 505. The alignment is achieved by lifting and lowering, which greatly improves the automation level of equipment processing;

[0047] S4: After the lifting and lowering adjustment is completed, the workpiece is clamped. After the arc plate 507 is aligned, the motor 601 is started to rotate on the arc mold 604, and the rotating motor 601 drives the second screw 602 to rotate, and the threaded connection between the second screw 602 and the arc plate 507 drives the arc mold 604 and the arc plate 507 to be placed concentrically. During this process, the buckle 607 contacts the workpiece, and multiple groups of buckles 607 are slidably clamped with each other, and are slidably clamped with the arc mold 604, so as to ensure the stability of its sliding;

[0048] S5: In this process, the adapter 608 is clamped at different positions of the workpiece. When encountering an arc angle or a depression, the adapter 608 rotates on the buckle 607 to perform additional clamping at different angles and positions. During the sliding process, the buckle 607 slides on the arc mold 604 and is fixed with the reverse thrust of the spring 606;

[0049] S6: After the arc mold 604 and the arc plate 507 are concentric, the arc plate 507 and the arc mold 604 are both fitted with the pressure ring 404, and the rubber strip 605 on the arc mold 604 is used to improve the friction of the fitting and the stability of the fixation;

[0050] S7: During the process of fixing the workpiece, the lateral positioning bolt 801 is rotated to extend so as to fix the workpiece at a full angle laterally, and the fixing stability of the lateral positioning bolt 801 is improved by rotating the knob 802;

[0051] S8: After the workpiece is transversely fixed, in the process of longitudinally fixing the top of the workpiece, the second electric push rod 703 is started to push and pull, so that it drives the driving rod 701 to rotate. During the rotation of the driving rod 701, the angle between the driving rod 701 and the pressing ring 404 changes;

[0052] S9: The top fixing components are evenly distributed and connected in a hexagonal shape. When rotating, they are gradually clamped from the outside to the inside to reduce the exposed space on the top. They can be clamped by pushing from the outside to the inside, or pulled from the inside to fix.

[0053] S10: The driven rod 702 and the positioning rod 704 are connected in a triangle, so that the scaling of the central area can adaptively fix the workpiece. The fixation of the workpiece is completed, which greatly improves the stability of workpiece processing;

[0054] S11: After the workpiece is fixed, the angle of the stirring workpiece is adjusted. Before starting the adjustment device, the support rod 301 and the adjustment rod 303 are tilted inward at 45 degrees, supported by the first electric push rod 302, forming a stable triangular structure. When the angle adjustment is required, the first electric push rod 302 is started to extend and retract, driving more than three groups of the first electric push rods 302 to be compressed, completing the tilting or overall lowering of the adjustment disk 307, and the remaining three groups of the first electric push rods 302 are lifted, and the angle of the compressed support rod 301 and the adjustment rod 303 is supplemented, and the first electric push rod 302 is used to triangulate the support rod 301 and the adjustment rod 303 after compression or expansion;

[0055] S12: When the device needs to be adjusted to a narrower angle, the first motor 306 connected to the adjustment disk 307 can be started to rotate. When the first motor 306 rotates, the first screw rod 305 is driven to rotate. The threaded connection between the first screw rod 305 and the slider 304 drives the slider 304 to rotate on the adjustment disk 307, thereby changing the relative position of the adjustment rod 303, thereby improving the flexibility of the device angle adjustment;

[0056] S13: By adjusting the angle of the adjusting disk 307, the clamped workpiece is driven to rotate in real time, which can improve the flexibility and bending angle of the stirring welding, and greatly improve the adjustment performance of the equipment;

[0057] S14: After the angle adjustment is completed, the rotating mechanism is started to drive the device to rotate as a whole. The electric turntable 401 is connected to the adjustment disk 307, and the worm gear structure drives the mounting table 402 to rotate stably, and the equipment and workpiece on the mounting table 402 can be rotated stably; the mounting table 402 and the pressure ring 404 are connected through the column 403, and the column 403 is stably connected to the mounting table 402 and the pressure ring 404 using a welding process to prevent it from being easily damaged under long-term buckling and pulling actions;

[0058] S15: By rotating the equipment through the rotating mechanism, it can effectively switch between multiple angles and multiple welding positions to ensure the effective progress of welding work. Adjustment through the rotating mechanism greatly improves the welding flexibility of the equipment, ensuring that the equipment rotates evenly at different angles and performs orderly stirring welding.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A self-adjusting clamping mechanism for stirring welding, characterized in that: The invention comprises a base (1) and a clamping mechanism; the clamping mechanism is installed on the base (1); the clamping mechanism comprises an adjusting device, a rotating assembly, a lifting mechanism, a clamping mechanism and a top fixing device; a plurality of groups of first mounting seats (201) are arranged on the base (1); the adjusting device passes through corresponding first mounting seats (201) and is rotatably connected to the base (1); the rotating assembly is arranged on the adjusting device; the lifting mechanism is arranged on the rotating assembly; a plurality of groups of through holes (202) are arranged on the rotating mechanism; the top fixing device passes through corresponding through holes (202) and is rotatably connected to the rotating mechanism; and the clamping mechanism is evenly installed on the lifting mechanism.

2. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The adjusting device comprises a support rod (301), a first electric push rod (302), an adjusting rod (303), a slider (304), a first screw rod (305), a first motor (306) and an adjusting disk (307); the array support rods (301) respectively pass through the corresponding first mounting seats (201) and are rotatably connected to the base (1); the array support rods (301) are each provided with a mounting groove (308); the connecting ends of the array adjusting rod (303) and the array first electric push rod (302) are respectively hinged to the corresponding mounting groove (308); the output ends of the array first electric push rod (302) are respectively hinged to one end of the corresponding adjusting rod (303); the array slider (304) is each provided with a second hinge seat (309); the other end of the array adjusting rod (303) is respectively hinged to the corresponding mounting groove (308); The adjusting disk (307) is provided with an array slide groove (310), and the array slide blocks (304) respectively pass through the corresponding slide grooves (310) and are slidably connected to the adjusting disk (307). The adjusting disk (307) is provided with an array machine base (311), and the connection ends of the array first motors (306) are respectively connected to the connection ends of the corresponding machine bases (311), and the output ends of the array first motors (306) respectively pass through the corresponding machine bases (311) and are connected to the connection ends of the corresponding first screw rods (305), and the array slide blocks (304) are provided with threaded holes (312), and the array first screw rods (305) respectively pass through the corresponding threaded holes (312) and are threadedly connected to the corresponding slide blocks (304).

3. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The rotating assembly comprises an electric turntable (401), a mounting platform (402), a column (403) and a pressure ring (404); the connection end of the electric turntable (401) is connected to the top of the adjustment disk (307); the connection end of the mounting platform (402) is connected to the output end of the electric turntable (401); the array column (403) is arranged on the mounting platform (402); and the pressure ring (404) is arranged at the top of the column (403).

4. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder (501), a limiting rod (502), a limiting plate (503), a connecting plate (504), a connecting rod (505), an elbow (506), an arc plate (507) and a bottom top block (508); the two hydraulic cylinders (501) are arranged on the mounting platform (402), the limiting rod (502) is placed between the hydraulic cylinders (501) and is arranged on the mounting platform (402), the output end of the hydraulic cylinder (501) is provided with a limiting plate (503), a top block (508) is provided above the limiting plate (503), and the limiting rod (505) is provided with a bottom top block (508). 02), a connecting plate (504) is slidably arranged on the connecting plate (504), with the limiting rod (502) as the center, and slots (504) are opened on both sides of the connecting plate (504), and a connecting seat (511) is arranged at the end of the connecting plate (504) away from the limiting rod (502), and the connecting seat (511) is rotatably connected to one end of the connecting rod (505), and the other end of the connecting rod (505) is rotatably connected to the bottom of the arc plate (507), and the slot (504) is used to limit the limiting plate (503); a bottom top block (508) is arranged on the limiting rod (502) near the end of the arc plate (507).

5. The self-adjusting clamping mechanism for stirring welding according to claim 4, characterized in that: The arc plate (507) includes two semicircular plates, and the bottom top block (508) is a hinge structure, which is hinged on the two semicircular plates respectively. The hydraulic cylinder (501) works to drive the limit plate (503) upward, and the limit plate (503) pushes the connecting plate (504), so that after the electric turntable (401) is started, the connecting rod (505) drives the semicircular plates to rotate.

6. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The clamping mechanism comprises a motor (601), a second screw rod (602), a limit joint (603), an arc mold (604), a rubber strip (605), a spring (606), a buckle (607) and an adapter joint (608); the two groups of arc plates (507) are both provided with arc grooves (609), the two groups of arc molds (604) respectively pass through the corresponding arc grooves (609) and are slidably connected with the corresponding arc plates (507), the arc mold (604) is provided with a driving seat (610), the driving seat (610) is provided with a motor (601), the output end of the motor (601) is connected with the second screw rod (602), the second screw rod (602) is threadedly connected with the arc plate (507), and the plurality of limit joints (601) are connected with the second screw rod (602). 3) are respectively connected to the connecting ends of the corresponding arc molds (604), a limiting groove (612) is arranged on the arc plate (507), and the array limiting joints (603) respectively pass through the corresponding limiting grooves (612) and are slidably connected to the corresponding arc plate (507), the connecting ends of the two groups of rubber strips (605) are respectively connected to the connecting ends of the corresponding arc molds (604), the two groups of arc molds (604) are matched with multiple groups of long grooves (613), and the multiple groups of buckles (607) respectively pass through the corresponding long grooves (613) and are slidably connected to the corresponding arc molds (604), the multiple groups of springs (606) are respectively fixedly mounted on the corresponding buckles (607), and the connecting ends of the multiple groups of adapter joints (608) are respectively rotatably connected to the corresponding buckles (607).

7. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The top fixing device comprises a driving rod (701), a driven rod (702), a second electric push rod (703) and a positioning rod (704); the driving rod (701) and the driven rod (702) are rotatably connected to the pressure ring (404); a plurality of groups of positioning rods (704) are rotatably connected to the corresponding driving rod (701) and the driven rod (702); a positioning seat (705) is provided on the pressure ring (404); the second electric push rod (703) passes through the positioning seat (705) and is rotatably connected to the pressure ring (404); and the output end of the second electric push rod (703) is rotatably connected to the driving rod (701).

8. The self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The lifting mechanism also includes lateral positioning bolts (801) and rotating knobs (802); the arc-shaped plate (507) in the lifting mechanism is symmetrically provided with tightening holes (803); four groups of lateral positioning bolts (801) respectively pass through the corresponding tightening holes (803) and are threadedly connected to the arc-shaped plates (507) on the corresponding sides; multiple groups of tightening holes (803) are matched with rotating holes (804); multiple groups of rotating knobs (802) respectively pass through the corresponding rotating holes (804) and are threadedly connected to the corresponding arc-shaped plates (507).

9. The clamping method of the self-adjusting clamping mechanism for stirring welding according to claim 1, characterized in that: The steps include: S1: When stirring welding is required for the workpieces, the two parts of the workpieces to be welded are placed on the clamping mechanism. The clamping mechanism is in an outward tilted lifting state in an idle state. The workpieces are placed on the arc mold (604), and the lifting mechanism is started to lift them upward. During the lifting process, the lifting mechanism pushes the arc plates (507) under the arc plates (507) to align the two groups of arc plates (507). After the alignment is completed, the clamping mechanism is started to align the two groups of workpieces. The workpieces are adaptively fixed on both sides of the two groups of workpieces, so that the equipment clamping can be more suitable for workpieces of different shapes and sizes; S2: After the longitudinal fixation is completed, the lifting mechanism is started to lift the arc plate (507) to the top, so that the top fixing component is fixed to the top of the matched workpiece. During this process, the top fixing component is evenly distributed and connected in a hexagonal state. When it rotates, it is gradually clamped from the outside to the inside to reduce the exposed space at the top. It can be clamped by pushing from the outside to the inside, or it can be fixed by pulling from the inside; S3: After the horizontal and vertical sides are fixed, the rotating mechanism can be started to drive the equipment to rotate as a whole, and the fixing holes on the chassis are connected and fixed to the predetermined position to ensure that the equipment rotates evenly at different angles and perform orderly stirring welding; S4: When the stirring workpiece needs to be adjusted in angle, the adjusting device is started, and the adjusting device on the base (1) is rotated to clamp or unfold the workpiece at an adaptive angle, thereby adjusting the overall angle of the equipment to meet different stirring welding processing requirements.

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