Flash butt welding and deburring integrated welding machine

Abstract

The present application relates to flash butt welding equipment technical field, the present application provides flash butt welding, deburring same station integrated welding machine, it includes machine body, the fixed support seat is fixedly arranged on the machine body, the first clamping assembly is arranged on the fixed support seat, the movable frame is horizontally slidably arranged on the machine body, and after sliding, it is close to or away from the fixed support seat, the second clamping assembly is arranged on the movable frame, the first clamping assembly and the second clamping assembly are respectively used for clamping the two arc edges of open ring-shaped parts, a group of butt welding electrodes is respectively arranged on the movable frame and the fixed support seat, the deburring cutter is horizontally movably arranged relative to the machine body, and is used for sliding abutment with the welding fracture of open ring-shaped parts to realize cutting burr.Through the above technical scheme, the welding and deburring process are completed in the same station, the positioning error caused by the secondary clamping of workpiece is reduced, and the processing efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of flash butt welding equipment technology, specifically to a flash butt welding and deburring integrated welding machine in the same station. Background Technology

[0002] In industrial manufacturing, flash butt welding of ring-shaped workpieces (such as pipes, reinforcing bars, and chains) is widely used due to its high efficiency and reliability. Flash butt welding uses an electric current to melt the contact points of the workpieces and then applies pressure to form a joint. However, this process inevitably produces a ring-shaped weld layer of burrs protruding from the workpiece surface at the interface. These burrs not only affect the appearance quality of the workpiece but can also lead to problems such as difficulty in subsequent assembly and stress concentration. Especially in fields with high surface precision requirements, such as automobile manufacturing, pressure vessels, and precision machinery, burr removal becomes a critical process.

[0003] In existing technologies, the removal of annular burrs typically requires the workpiece to be removed from the welding machine and processed separately. For example, traditional methods use manual handheld power tools for grinding, which is inefficient, labor-intensive, and poses significant safety hazards. Furthermore, the grinding quality depends heavily on worker experience, making consistency difficult to guarantee. Some automated equipment attempts to use laser deburring technology, but the annular workpiece is susceptible to displacement due to external forces, leading to insufficient laser irradiation precision and the potential for burr residue or substrate damage. Similarly, existing technologies have attempted to use plasma removal systems with a circular track mechanism to achieve the circular motion of the air gouging gun, simultaneously removing burrs and heat treating the weld, suitable for metal pipes with diameters of 200–400 mm. While these technologies improve efficiency to some extent, they still have limitations such as narrow applicability, large equipment size, and high maintenance costs. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides an integrated flash butt welding and deburring welding machine in the same station, which solves the technical problem that the annular burr welding layer generated at the interface of the annular workpiece after flash butt welding is not easy to remove in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a flash butt welding and deburring integrated welding machine for welding the two ends of an open annular component to form a closed annular component, comprising: The machine body is fixedly provided with a fixed support base, and the fixed support base is provided with a first clamping component; A movable frame; the movable frame is horizontally slidably disposed on the machine body, and moves closer to or further away from the fixed support base after sliding. The movable frame is provided with a second clamping assembly, and the first clamping assembly and the second clamping assembly are respectively used to clamp the two arc edges of the open annular piece. The movable frame and the fixed support are each provided with a set of welding electrodes, and flash welding is achieved by applying current to the open annular part. A deburring cutter, which is horizontally movable relative to the machine body, is used to slide against the welded joint of the open annular part to cut burrs.

[0006] For example, at least one embodiment of this disclosure provides a flash butt welding and deburring integrated welding machine, wherein the second clamping assembly includes: a sliding base frame and a first pressing member, the first pressing member being slidably and vertically disposed on the sliding base frame, and the first pressing member being used to cooperate with the sliding base frame to clamp the open annular part after sliding.

[0007] For example, in at least one embodiment of the present disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the sliding base and the first top pressing member are respectively provided with a first bottom mold groove and a first top mold groove, and the first bottom mold groove and the first top mold groove are respectively used to accommodate and clamp the arc-shaped edge of the open annular member from the upper and lower ends.

[0008] For example, the flash butt welding and deburring integrated welding machine provided in at least one embodiment of this disclosure further includes: A tool holder is horizontally slidably mounted on the fixed support base, and the deburring knife is connected to the tool holder via a drive shaft for synchronous horizontal sliding with the tool holder. The deburring tool is provided with an axial cutting edge at one end along the feed direction of the tool holder. The axial cutting edge is used to cut the burrs on the outer wall of the interface of the closed annular part after being slid by the tool holder.

[0009] For example, in at least one embodiment of this disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the first clamping assembly includes: The base frame and the second top pressing frame are independently lifted and slidably mounted on the fixed support base. The base frame and the second top pressing frame are respectively provided with a second bottom mold groove and a second top mold groove on their respective sides that are close to each other, so as to accommodate and clamp the arc-shaped edge of the other side of the open ring piece after they are close to each other.

[0010] For example, in at least one embodiment of this disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the tool holder is disposed on the side of the first clamping assembly away from the second clamping assembly. After welding is completed, the base frame and the second top pressure frame slide away from each other, so that the tool holder can drive the deburring knife through the gap between them, thereby cutting the burrs on the outer wall of the closed annular part interface.

[0011] For example, in at least one embodiment of the present disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the deburring knife is further provided with an arc-shaped relief groove through the feed direction, the axial cutting edge is located on the opening side of the arc-shaped relief groove in the feed direction, and the deburring knife is configured such that after being fed and slid by the tool holder, the axial cutting edge cuts the burrs, while simultaneously avoiding the closed annular part through the arc-shaped relief groove.

[0012] For example, in at least one embodiment of the present disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the deburring knife is eccentrically rotated on the knife holder via the transmission shaft, and the arc-shaped clearance groove is provided with a circumferential cutting edge on the side perpendicular to the feed direction opening. The circumferential cutting edge is configured such that, after being driven to rotate by the deburring knife, the circumferential cutting edge cuts the peripheral wall of the closed annular welding joint along the circumferential direction.

[0013] For example, in at least one embodiment of this disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein a set of circumferential cutting edges is provided on both sides of the arc-shaped clearance groove, and the drive shaft drives the deburring knife to rotate in both directions in sequence, so as to cut the peripheral wall of the closed annular welding joint from both sides after being driven to rotate by the two sets of circumferential cutting edges.

[0014] For example, in at least one embodiment of this disclosure, a flash butt welding and deburring integrated welding machine is provided, wherein the position of the butt welding electrode is adjustable on the movable frame and the fixed support.

[0015] The beneficial effects of the embodiments of the present invention are as follows: In this invention, the dual-clamping assembly structure of the fixed support base and the moving frame achieves centering and positioning of both ends of the open annular part, ensuring the coincidence of the axes at the weld fracture and reducing the risk of welding misalignment. The welding electrode is integrated into the side of the clamping assembly, shortening the current conduction path and reducing resistance loss. Simultaneously, the electrode contact surface is tightly fitted to the workpiece, improving the stability of the welding current. The horizontal movement of the deburring tool is aligned with the tangent direction of the weld fracture, transmitting the cutting force horizontally and avoiding the displacement effect of vertical forces on the workpiece, ensuring burr removal accuracy. Welding and deburring processes are completed in the same station, reducing positioning errors caused by secondary workpiece clamping and improving processing efficiency. The multi-head combination or rotatable tool holder design allows for adaptive cutting of different burr shapes, expanding the equipment's applicability. The servo drive system achieves precise control of the deburring tool's motion trajectory, combined with the high-precision positioning of the centering clamping assembly, forming a closed-loop processing flow to ensure workpiece consistency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an integrated flash butt welding and deburring welding machine in one embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged structural diagram of part A in the embodiment; Figure 3 for Figure 1 In the embodiment, a schematic diagram of the deburring process after welding is shown; Figure 4 for Figure 3 A partially enlarged structural diagram of section B in the middle; Figure 5 This is a schematic diagram of a deburring bayonet. In the diagram: Body-1, Fixed support base-2, First clamping assembly-300, Base frame-310, Second bottom mold groove-311, Second top mold groove-321, Moving frame-400, Second clamping assembly-500, Sliding base frame-510, First bottom mold groove-511, First top pressing component-520, First top mold groove-521, Butt welding electrode-600, Deburring knife-700, Axial cutting edge-701, Arc-shaped clearance groove-702, Circumferential cutting edge-703, Drive shaft-710, Tool holder-800, Second top pressing frame-320. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 the present invention.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-5 The diagram illustrates an integrated flash butt welding and deburring welding machine in one station according to an embodiment of the present invention. It is used to weld the two ends of an open annular component to form a closed annular component. The machine includes a body 1 as a basic support structure, with a fixed support base 2 fixed on it to form a fixed end. A first clamping assembly 300 is mounted on the fixed support base 2, using a centering mechanism to center and clamp one side of the open annular component's arc edge. A movable frame 400 is slidably connected to the machine body 1 via a linear guide rail, its sliding direction consistent with the axial direction of the open annular component. A second clamping assembly 500 is mounted on the movable frame 400, also using a centering mechanism to center and clamp the other side of the open annular component's arc edge. Two sets of butt welding electrodes 600 are integrated on the movable frame 400 and the fixed support base 2, respectively. The electrode contact surfaces are in contact with the part of the open annular component to be welded, and are connected to an external power supply via a conductive circuit. A deburring knife 700 is connected to the machine body 1 via a hydraulic cylinder, its blade extending horizontally and consistent with the tangent direction at the weld fracture.

[0025] The workflow is as follows: After the two ends of the open annular part are centered and clamped by the first clamping assembly 300 and the second clamping assembly 500 respectively, the moving frame 400 drives the second clamping assembly 500 to slide towards the fixed support 2, so that the two ends of the open annular part gradually approach and contact each other. The welding electrode 600 is energized to generate a flash welding process. After welding is completed, the moving frame 400 slides back to its original position, and the deburring knife 700 moves horizontally under the drive of the hydraulic cylinder. The blade slides and abuts against the annular burr layer at the weld fracture, removing the burrs through cutting action.

[0026] The dual-clamping assembly structure of the fixed support 2 and the movable frame 400 achieves centering and positioning of both ends of the open annular part, ensuring the coincidence of the axis at the weld fracture and reducing the risk of welding misalignment. The welding electrode 600 is integrated into the side of the clamping assembly, shortening the current conduction path and reducing resistance loss. At the same time, the electrode contact surface is in close contact with the workpiece, improving the stability of the welding current. The horizontal movement setting of the deburring cutter 700 is consistent with the tangent direction of the weld fracture, and the cutting force is transmitted in the horizontal direction, avoiding the influence of vertical force on the workpiece displacement and ensuring the accuracy of deburring removal. Welding and deburring processes are completed in the same station, reducing positioning errors caused by secondary clamping of the workpiece and improving processing efficiency. The multi-head combination or rotatable tool holder design can adaptively cut burr layers of different shapes, expanding the applicability of the equipment. The servo drive system achieves precise control of the motion trajectory of the deburring cutter 700, which, together with the high-precision positioning of the centering clamping assembly, forms a closed-loop processing flow to ensure workpiece consistency.

[0027] In some examples, the sliding base 510 of the second clamping assembly 500 is fixedly mounted on the movable frame 400, and its top is provided with a horizontal bearing surface for supporting one side arc edge of the open annular part. Vertical guide rails are provided on both sides of the sliding base 510, and the first pressing member 520 forms a lifting and sliding engagement with the sliding base 510 through the guide rails. The bottom of the first pressing member 520 is provided with a clamping surface opposite to the bearing surface of the sliding base 510. During the workflow, after one side arc edge of the open annular part is placed on the bearing surface of the sliding base 510, the first pressing member 520 slides downward along the vertical guide rails, and its clamping surface engages with the bearing surface of the sliding base 510, clamping the arc edge of the open annular part from the top and bottom directions. After the welding and deburring processes are completed, the first pressing member 520 slides upward to reset, releasing the workpiece.

[0028] The lifting and sliding mechanism of the first pressing member 520 allows the second clamping assembly 500 to adapt to the curved edges of open annular parts of different thicknesses by adjusting the sliding stroke of the first pressing member 520, thus expanding the equipment's compatibility with workpiece specifications. The upper and lower clamping structure formed by the sliding base frame 510 and the first pressing member 520, compared to clamping in a single direction, can more stably restrict the vertical displacement of the workpiece. Especially during the sliding motion of the moving frame 400, which brings the workpiece closer to the welding position, it prevents the workpiece from shifting during welding, ensuring the butt joint accuracy at the weld fracture. Furthermore, by controlling the sliding distance of the first pressing member 520, the clamping force can be precisely adjusted, ensuring stable clamping while preventing excessive compression that could cause workpiece deformation.

[0029] In some examples, a first bottom mold groove 511 is provided in the middle of the bearing surface of the sliding base 510, and a first top mold groove 521 is provided in the middle of the clamping surface of the first top pressing member 520. The groove shapes of the first bottom mold groove 511 and the first top mold groove 521 are matched with the outer contour of the arc side of the open annular member.

[0030] During the workflow, when one side of the open annular part is placed on the bearing surface of the sliding base 510, its arc edge is embedded in the first bottom mold groove 511; then the first top pressing part 520 slides down, and the first top mold groove 521 cooperates with the first bottom mold groove 511 to wrap around and clamp the arc edge of the open annular part from the upper and lower ends.

[0031] The groove shapes of the first bottom mold groove 511 and the first top mold groove 521 match the arc-shaped edge of the open annular part, which increases the contact area during clamping, allowing the clamping force to be applied more evenly to the workpiece surface and reducing workpiece deformation caused by local stress concentration. Simultaneously, the groove structure restricts the workpiece's rotation in the horizontal direction and radial displacement. Especially during the sliding motion of the moving frame 400, which moves the workpiece closer to the welding position, it prevents circumferential displacement of the workpiece due to inertia, ensuring precise butt joint angles at the weld fracture. Furthermore, the pre-positioning function of the groove for the workpiece simplifies the loading operation, reduces the time spent manually adjusting the workpiece position, and improves process connection efficiency.

[0032] In some examples, the tool holder 800 is horizontally slidably mounted on the side of the fixed support 2 facing the movable frame 400 via a linear slide rail assembly, with its sliding direction consistent with that of the movable frame 400. One end of the drive shaft 710 is fixedly connected to the deburring tool 700, and the other end is connected to the output end of the tool holder 800, forming a rigid transmission structure. The deburring tool 700 has an axial cutting edge 701 on one end face along the feed direction of the tool holder 800, the contour of which is adapted to the annular burr layer on the outer wall of the closed annular part interface. During the operation, after the movable frame 400 slides back to its original position, the tool holder 800 slides horizontally along the linear slide rail on the fixed support 2 towards the workpiece, driving the deburring tool 700 to move synchronously via the drive shaft 710, so that the axial cutting edge 701 contacts and continues to slide with the burr layer on the outer wall of the closed annular part interface, completing the cutting of the outer wall burrs; after cutting, the tool holder 800 drives the deburring tool 700 to slide back to its original position.

[0033] The sliding fit between the tool holder 800 and the fixed support 2 provides a stable support reference for the feed motion of the deburring tool 700, reducing vibration during the cutting process and improving the stability of the contact between the axial cutting edge 701 and the burr layer. The rigid connection of the drive shaft 710 ensures the synchronization of the movement of the deburring tool 700 and the tool holder 800, avoiding fluctuations in cutting depth caused by transmission lag and ensuring the uniformity of burr removal from the outer wall. The axial cutting edge 701 is positioned so that the cutting direction is consistent with the extension direction of the burr layer, achieving continuous cutting through linear sliding. Compared with point contact cutting, this reduces the instantaneous peak value of the cutting force and lowers the risk of micro-deformation of the workpiece due to force. At the same time, the tool holder 800 is integrated into the fixed support 2, forming a relatively fixed positional relationship between the deburring mechanism and the first clamping assembly 300, ensuring the accuracy of the correspondence between the cutting position and the welding interface, and further improving the consistency of the burr removal effect.

[0034] In some examples, the base frame 310 and the second top pressing frame 320 of the first clamping assembly 300 are respectively connected to the fixed support 2 through two sets of independent vertical guide rails, forming their own independent lifting and sliding structures. The two sets of guide rails are arranged parallel to each other along the vertical direction of the fixed support 2. A second bottom mold groove 311 is opened in the middle of the side of the base frame 310 facing the second top pressing frame 320, and a second top mold groove 321 is correspondingly opened in the middle of the side of the second top pressing frame 320 facing the base frame 310. The groove shapes of the second bottom mold groove 311 and the second top mold groove 321 are matched with the outer contour of the arc-shaped side of the other side of the open annular part.

[0035] During the workflow, after the arc edge of the open annular part is placed in the second bottom mold groove 311 of the base frame 310, the base frame 310 and the second top pressing frame 320 slide independently up and down along their respective vertical guide rails, approaching each other until the second top mold groove 321 and the second bottom mold groove 311 cooperate to accommodate and clamp the arc edge of the open annular part from the upper and lower ends; after the welding and deburring processes are completed, the two slide back in opposite directions to reset and release the workpiece.

[0036] The independent lifting and sliding configuration of the base frame 310 and the second top pressure frame 320 allows the first clamping assembly 300 to adapt to the asymmetrical structure of the arc edge of the open annular part in the thickness direction, or local dimensional deviations caused by processing errors, by adjusting the sliding stroke of both separately, thus improving its adaptability to irregularly shaped workpieces. The corresponding configuration of the second bottom mold groove 311 and the second top mold groove 321, combined with their independent lifting, enables precise centering of the workpiece through fine adjustments during clamping, ensuring that the axis of the open annular part coincides with the welding reference line, further reducing the butt joint deviation of the weld fracture. Compared with a single-drive clamping structure, the independent lifting method can control the clamping force of the base frame 310 and the second top pressure frame 320 separately, ensuring stable clamping while avoiding local deformation of the workpiece caused by excessive force on one side, which is especially suitable for processing thin-walled annular parts. In addition, the setting of two sets of independent guide rails makes the clamping action more flexible. When there is a slight deviation in the loading position of the open ring part, the workpiece can be corrected by adjusting the position of the base frame 310 or the second top pressing frame 320 separately, reducing the loading adjustment time and improving the continuity of the process.

[0037] In some examples, the tool holder 800 is mounted on the fixed support 2 via a linear slide rail assembly and is located on the side of the first clamping assembly 300 away from the second clamping assembly 500, with its sliding path collinear with the clamping center axis of the first clamping assembly 300. The lifting and sliding stroke of the base frame 310 and the second top pressure frame 320 is set such that when they are far apart to their maximum distance, the gap width formed between them is greater than the lateral dimension of the deburring tool 700 and the drive shaft 710.

[0038] In the workflow, after the moving frame 400 slides back to its original position, the base frame 310 slides downward along the vertical guide rail, and the second top pressure frame 320 slides upward along the vertical guide rail, with the two moving away from each other to form a gap. Then, the tool holder 800 drives the deburring cutter 700 to slide horizontally, passing through this gap to reach the outer wall position at the interface of the closed annular part, and the axial cutting edge 701 contacts the burr layer to complete the cutting. After the cutting is completed, the tool holder 800 drives the deburring cutter 700 to slide back out of the gap, and the base frame 310 and the second top pressure frame 320 move closer to each other to reset.

[0039] The tool holder 800 is positioned outside the first clamping assembly 300, avoiding structural interference with the first clamping assembly 300 when clamping the workpiece, resulting in a more compact layout of all components. After welding, the base frame 310 and the second top pressure frame 320 are spaced apart, providing a passage for the deburring tool 700 to smoothly reach the interface position of the closed annular part, solving the problem of the clamping assembly blocking the cutting path. The formation of this interval, combined with the sliding fit of the tool holder 800, allows the deburring action to be performed with the first clamping assembly 300 not fully releasing the workpiece, while the workpiece remains partially positioned, reducing workpiece displacement caused by complete release and ensuring the accuracy of the correspondence between the cutting position and the interface. At the same time, the design of the interval width adapting to the size of the deburring tool 700 ensures passage while avoiding a decrease in workpiece positioning stability due to an excessively large interval, forming a coordinated cooperation between clamping and cutting.

[0040] In some examples, the deburring cutter 700 has an arc-shaped relief groove 702 extending through its center along the feed direction. The curvature of this groove matches the outer circumference of the closed annular component, and its depth is greater than the wall thickness of the closed annular component. An axial cutting edge 701 is positioned at the opening edge of the arc-shaped relief groove 702 in the feed direction, with its cutting edge facing the same direction and its height higher than the bottom of the arc-shaped relief groove 702. During operation, as the tool holder 800 moves the deburring cutter 700 towards the interface of the closed annular component, the non-burr portion of the closed annular component is embedded in the arc-shaped relief groove 702, forming a circumferential enclosure. Simultaneously, the axial cutting edge 701 contacts the burr layer on the outer wall of the interface, completing the cutting as the tool holder 800 continues to slide. During this process, the arc-shaped relief groove 702 maintains a gap with the outer surface of the closed annular component to prevent contact.

[0041] The arc-shaped relief groove 702 allows the deburring tool 700 to accommodate the body of the closed annular component during the feed cutting process, preventing contact between the tool and the non-burr area of ​​the workpiece. This prevents scratches or deformation of the workpiece's outer surface and protects the workpiece's original precision. The axial cutting edge 701 is located on one side of the relief groove opening, and its position matches the groove, ensuring that the cutting action targets only the burr layer at the interface. This creates directional cutting of the burrs, preventing uncontrolled cutting depth due to interference between the tool and the workpiece body, and improving the accuracy of burr removal. The matching design of the arc-shaped relief groove 702 with the outer contour of the closed annular component guides the tool during cutting, reducing cutting edge deviation caused by vibration. This ensures that the axial cutting edge 701 always acts on the circumferential path where the burr is located, further guaranteeing consistent cutting results.

[0042] In some examples, the end of the drive shaft 710 away from the deburring tool 700 is connected to the tool holder 800 via an eccentric bushing, forming an eccentric rotation structure. The eccentricity is set according to the width of the peripheral wall of the welded joint of the closed annular part. The arc-shaped clearance groove 702 has a circumferential cutting edge 703 on one side of the groove wall perpendicular to the feed direction. This cutting edge extends along the arc of the arc-shaped clearance groove 702, and the cutting edge faces the same direction as the rotation of the deburring tool 700.

[0043] During the workflow, after the axial cutting edge 701 completes the axial cutting of the outer wall burrs, the drive shaft 710 drives the deburring tool 700 to rotate around the eccentric bushing. The circumferential cutting edge 703 gradually contacts the circumferential wall of the welded joint of the closed annular part as the deburring tool 700 rotates, cutting the burrs on the circumferential wall. At this time, the arc-shaped clearance groove 702 still provides clearance to the closed annular part body, avoiding interference. After cutting is completed, the deburring tool 700 rotates in the opposite direction to reset, and the tool holder 800 drives the entire tool to retract.

[0044] The eccentric rotation of the drive shaft 710 allows the circumferential cutting edge 703 to move along the circumferential trajectory of the closed annular weld joint during rotation, covering the entire circumference of the peripheral wall. This solves the problem of simple axial cutting being insufficient for removing burrs from the side of the peripheral wall, achieving all-around removal of burrs from the weld joint. The circumferential cutting edge 703 is positioned in conjunction with the arc-shaped clearance groove 702. When cutting burrs from the peripheral wall, the arc-shaped clearance groove 702 still maintains clearance from the workpiece body, ensuring that the circumferential cutting only acts on the burr area and avoids damage to the reference surface of the workpiece's peripheral wall. The eccentric structure allows the cutting radius of the circumferential cutting edge 703 to be adjusted to accommodate weld joints of different diameters, improving the adaptability of the deburring tool 700 to workpieces of different specifications. Simultaneously, the rotary cutting method allows for control of the cutting speed by adjusting the rotation speed, which, combined with the axial sliding feed speed, forms a compound cutting action, reducing the load of a single cut and extending tool life.

[0045] In some examples, the two sides of the arc-shaped relief groove 702, perpendicular to the feed direction, are each provided with a set of circumferential cutting edges 703. The two sets of cutting edges are symmetrically distributed along the arc of the arc-shaped relief groove 702, with the cutting edges facing opposite directions. The drive shaft 710 is connected to the tool holder 800 through a bidirectional rotary drive mechanism, which can drive the deburring tool 700 to rotate sequentially in clockwise and counterclockwise directions. The rotation angle range is such that the two sets of circumferential cutting edges 703 respectively contact the two sides of the peripheral wall of the weld joint of the closed annular part. During the workflow, after the axial cutting edge 701 completes the deburring of the outer wall, the drive shaft 710 first drives the deburring cutter 700 to rotate clockwise, so that the circumferential cutting edge 703 on one side of the arc-shaped clearance groove 702 contacts one side of the weld joint peripheral wall and completes the cutting; then the drive shaft 710 drives the deburring cutter 700 to rotate counterclockwise to reset and continue to rotate, so that the circumferential cutting edge 703 on the other side contacts the other side of the weld joint peripheral wall and completes the cutting; during this period, the arc-shaped clearance groove 702 always provides clearance to the closed annular part body.

[0046] The circumferential cutting edges 703 on both sides of the arc-shaped clearance groove 702, in conjunction with the bidirectional rotation of the drive shaft 710, can cut from both sides of the weld joint peripheral wall, covering the burr areas on both sides of the entire circumference. This solves the problem of burr residue that easily occurs with unilateral cutting, achieving all-round burr removal from the weld joint peripheral wall. The symmetrical distribution of the two sets of cutting edges and the coordination of bidirectional rotation ensure balanced cutting force on both sides, avoiding slight workpiece displacement caused by continuous force on one side, and ensuring the stability of cutting accuracy. The bidirectional rotation method allows cutting on both sides to be completed in a single feed without adjusting the tool position, reducing the total stroke of the cutting action and improving the efficiency of the deburring process. At the same time, the two sets of cutting edges can be adapted to cut different burr shapes that may exist on both sides of the weld joint, improving the ability to handle complex burr structures.

[0047] In some examples, electrode adjustment seats are respectively provided on the movable frame 400 and the fixed support 2. The welding electrode 600 is slidably connected to the horizontal guide rail of the electrode adjustment seat via a slider, and a locking element is provided on the slider. The electrode adjustment seat has a scale along the guide rail direction. The welding electrode 600 can slide along the guide rail to change its relative position with the part of the workpiece to be welded. After adjustment, it is fixed by the locking element. In the working process, after the first clamping assembly 300 and the second clamping assembly 500 clamp the open annular part, according to the position of the part of the workpiece to be welded, the welding electrode 600 on the movable frame 400 and the fixed support 2 is slid so that its contact surface is aligned and fits with the part of the workpiece to be welded. After locking, flash welding is performed. The above position adjustment steps are repeated for open annular parts of different specifications.

[0048] The adjustable position of the welding electrode 600 allows the equipment to adapt to open annular parts of different diameters and welding locations by adjusting the electrode position, thus expanding the equipment's compatibility with workpiece specifications. By ensuring a tight fit between the welding electrode 600 and the workpiece to be welded, contact resistance fluctuations are reduced, ensuring stable welding current conduction and lowering the incidence of welding defects such as incomplete welds and lack of penetration caused by poor contact. The graduations on the electrode adjustment seat facilitate precise control of the electrode position, ensuring consistent welding parameters across different batches of workpieces and improving the quality stability of mass production. Furthermore, when there are slight dimensional deviations in the workpiece, the deviation can be compensated for by fine-tuning the electrode position, reducing welding quality fluctuations caused by workpiece machining errors.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A flash butt welding and deburring integrated welding machine for welding the two ends of an open annular component to form a closed annular component, characterized in that, include: The machine body (1) is fixedly provided with a fixed support base (2), and the fixed support base (2) is provided with a first clamping assembly (300). A movable frame (400) is horizontally slidably disposed on the body (1), and after sliding, it moves closer to or further away from the fixed support base (2). A second clamping assembly (500) is provided on the movable frame (400). The first clamping assembly (300) and the second clamping assembly (500) are respectively used to clamp the two arc edges of the open annular piece. The movable frame (400) and the fixed support base (2) are respectively provided with a set of welding electrodes (600), and flash welding is achieved by applying current to the open annular part; Deburring cutter (700), which is horizontally movable relative to the machine body (1) and is used to slide against the weld break of the open annular part to cut burrs; A tool holder (800) is horizontally slidably mounted on the fixed support base (2). The deburring knife (700) is connected to the tool holder (800) via a drive shaft (710) and is used to slide horizontally synchronously with the tool holder (800). The deburring tool (700) is provided with an axial cutting edge (701) at one end along the feed direction of the tool holder (800). The axial cutting edge (701) is used to cut the burrs on the outer wall of the interface of the closed ring after being driven to slide by the tool holder (800). The deburring tool (700) is also provided with an arc-shaped relief groove (702) extending through the feed direction. The axial cutting edge (701) is located on the opening side of the arc-shaped relief groove (702) in the feed direction. The deburring tool (700) is configured such that after being fed and slid by the tool holder (800), the axial cutting edge (701) cuts the burrs, while simultaneously avoiding the closed annular part through the arc-shaped relief groove (702). The deburring dagger (700) is also eccentrically mounted on the tool holder (800) via the drive shaft (710). The arc-shaped clearance groove (702) has a circumferential cutting edge (703) on the side perpendicular to the feed direction opening. The circumferential cutting edge (703) is configured such that, after being driven to rotate by the deburring dagger (700), the circumferential cutting edge (703) cuts the circumferential wall of the closed annular weld joint along the circumferential direction. The arc-shaped clearance groove (702) is provided with a set of circumferential cutting edges (703) on both sides. The drive shaft (710) drives the deburring knife (700) to rotate in both directions in sequence. After being driven to rotate by the two sets of circumferential cutting edges (703), it cuts the peripheral wall of the closed annular weld joint from both sides.

2. The integrated flash butt welding and deburring welding machine in one station according to claim 1, characterized in that, The second clamping assembly (500) includes a sliding base (510) and a first pressing member (520). The first pressing member (520) is slidably mounted on the sliding base (510). After sliding, the first pressing member (520) is used to cooperate with the sliding base (510) to clamp the open annular member.

3. The integrated flash butt welding and deburring welding machine in the same station as described in claim 2, characterized in that, The sliding base frame (510) and the first top pressing member (520) are respectively provided with a first bottom mold groove (511) and a first top mold groove (521). The first bottom mold groove (511) and the first top mold groove (521) are respectively used to accommodate and clamp the arc-shaped edge of the open ring member from the upper and lower ends.

4. The integrated flash butt welding and deburring welding machine in one station according to claim 1, characterized in that, The first clamping assembly (300) includes: The base frame (310) and the second top pressing frame (320) are independently lifted and slidably mounted on the fixed support base (2). The base frame (310) and the second top pressing frame (320) are respectively provided with a second bottom mold groove (311) and a second top mold groove (321) on the side of the base frame (310) and the second top pressing frame (320) that are close to each other, for accommodating and clamping the arc-shaped edge of the other side of the open ring piece after they are close to each other.

5. The integrated flash butt welding and deburring machine in one station according to claim 4, characterized in that, The tool holder (800) is located on the side of the first clamping assembly (300) away from the second clamping assembly (500). After welding is completed, the base frame (310) and the second top pressure frame (320) slide away from each other, so that the tool holder (800) can drive the deburring knife (700) through the gap between them, and then cut the burrs on the outer wall of the closed annular part interface.

6. The integrated flash butt welding and deburring welding machine in one station according to claim 1, characterized in that, The welding electrode (600) is adjustablely positioned on the movable frame (400) and the fixed support base (2).

Images