A flash butt welding machine for anchor chain production

Abstract

This invention belongs to the field of flash butt welding technology for anchor chains, and specifically relates to a flash butt welding machine for anchor chain production. The machine includes a chassis with two sets of movable welding sections. The chassis also has support sections corresponding to the movable welding sections, each with a groove for engaging with the chain links to be welded. Forging components are symmetrically mounted on both sides of the support sections, applying forging force to the chain links during welding. An anchor chain support is obliquely mounted on the support section, with a guide groove for engaging with the chain links, vertically guiding and supporting the chain links to be welded. A chain-feeding mechanism is mounted on the anchor chain support, pulling the unwelded chain links onto the support section. This invention facilitates automated feeding and butt welding of anchor chain links, not only accelerating the efficiency of flash butt welding but also preventing inaccurate manual feeding from affecting the quality of the flash welding.

Description

Technical Field

[0001] This invention belongs to the field of flash butt welding technology for anchor chains, and in particular relates to a flash butt welding machine for anchor chain production. Background Technology

[0002] Flash butt welding has a wide range of applications. In principle, any castable metal material can be welded using flash butt welding, such as low carbon steel, high carbon steel, alloy steel, stainless steel; non-ferrous metals and alloys such as aluminum, copper, and titanium. It is widely used and is an economical and efficient welding method. In flash butt welding, the power is first turned on, and the end faces of the two workpieces are brought into slight contact to form many contact points. When the current passes through, the contact points melt, forming a liquid metal beam connecting the two end faces. Due to the extremely high current density in the liquid beam, the liquid metal in the beam evaporates and the beam explodes. As the moving clamp slowly advances, the beam continues to explode. Under the action of vapor pressure and electromagnetic force, liquid metal particles are continuously ejected from the interface, forming a spark jet, i.e., flash.

[0003] Because the anchor chains to be welded are relatively long, existing flash butt welding machines typically suspend the anchor chain via a crane or robotic arm, then manually load the chain links to be welded horizontally onto the lower copper electrode plate, and finally achieve flash butt welding through the descending contact of the upper copper electrode plate. Clearly, this method has the following drawbacks: First, because the material is fed manually, it not only increases the labor intensity of the operators and reduces the welding efficiency of the anchor chain, but also requires high temperature heating of the chain links for flash butt welding, which will generate sparks and thus easily cause safety hazards to the operators. Secondly, the already welded chain links that need to be welded are in direct contact with the copper electrode below, and the copper electrode also needs to be subjected to upsetting force, which can easily cause wear on the copper electrode material after long-term use, thus affecting the accuracy and quality of subsequent anchor chain welding. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a flash butt welding machine for anchor chain production, comprising a chassis with two sets of movable welding sections for flash welding of the chain links of anchor chain components; a support section corresponding to the movable welding sections, with grooves on the support section that mate with the chain links to be welded on the anchor chain components; symmetrically mounted upsetting components on both sides of the support section on the chassis, the upsetting components applying upsetting force to the chain links during welding; an anchor chain support section obliquely mounted on the support section, with guide grooves formed on the anchor chain support section that mate with the chain links, the guide grooves providing vertical guidance and support for the chain links to be welded; and a chain-feeding mechanism mounted on the anchor chain support section, the chain-feeding mechanism pulling the unwelded chain links onto the support section, while the welded chain links are simultaneously transferred and detached from the support section.

[0005] In a preferred embodiment, the two sets of movable welding parts include a support plate mounted on the chassis, a first telescopic rod mounted on the support plate, a pressure plate mounted on the output end of the first telescopic rod, and symmetrical electrode copper plates mounted on the pressure plate, wherein the symmetrical electrode copper plates have recessed grooves that cooperate with the chain links.

[0006] In a preferred embodiment, the upsetting component includes a support plate fixed on the machine housing and located on the side of the support portion, a second telescopic rod mounted on the outside of the support plate via a support member, and a connecting block mounted on the output end of the second telescopic rod and connecting the upsetting block. The upsetting block is provided with a pushing groove that mates with the outer ring surface of the chain link. The connecting block and the support plate are connected by a guide rail assembly, and the pushing groove of the top forging block fits against the upper half of the vertical chain ring surface.

[0007] In a preferred embodiment, the top of the support portion has an arc-shaped protrusion, and the two sides of the arc-shaped protrusion have sloping surfaces. The inclined surface of the inclined anchor chain branch is flush with the sloping surface, so that the bottom of the guide groove and the groove portion are on the same horizontal plane.

[0008] In a preferred embodiment, the chain-pulling mechanism includes a limiting groove formed on the upper surface of the anchor chain support and located on both sides of the guide groove, a guide slider movably installed in the limiting groove, a U-shaped slide block movably sleeved on the anchor chain support, and a support plate connecting the vertical wall of the U-shaped slide block and the guide slider. The two support plates are provided with hidden grooves for hiding the clamping blocks. The support plates are equipped with a third telescopic rod for moving the clamping blocks. The symmetrical clamping blocks are clamped on the vertically positioned chain links.

[0009] In a preferred embodiment, the chain-pulling mechanism further includes a power source embedded in the support, a drive wheel connected to the output shaft of the power source, and a traction part wound around the drive wheel. The two ends of the traction part are respectively connected to U-shaped slides that are slidably sleeved on the two anchor chain supports. An elastic component is installed in the limiting groove, and the two ends of the elastic component are respectively connected to the groove wall of the limiting groove and the guide slider.

[0010] In a preferred embodiment, the anchor chain support is equipped with a tensioning and limiting assembly for limiting the traction part. The tensioning and limiting assembly includes a support guide rod that is movably installed through the vertical wall of the U-shaped slide, a connecting plate installed at the end of the support guide rod, and a movable U-shaped clamp installed on the connecting plate for limiting the traction part. The other end of the support guide rod is equipped with a limiting plate, and the limiting plate is connected to the vertical wall of the U-shaped slide through an elastic component.

[0011] In a preferred embodiment, the tensioning and limiting assembly further includes a fixing U-shaped clip, which is fixedly installed on the side of the anchor chain support on one side of the welded chain link. The support is also equipped with fixing U-shaped clips on both sides of the drive wheel, and the fixing U-shaped clips are in active contact with the traction part.

[0012] The present invention has the following beneficial effects: This invention installs flush anchor chain supports on both sides of the sloping surface of the support section. Through the cooperation of the limiting groove and the groove portion, the chain links to be welded can be laid vertically on the anchor chain supports. Then, through the cooperation of the chain feeding mechanism, the chain links to be welded can be sequentially and equidistantly fed into the groove portion. This facilitates automated feeding and welding of the anchor chain links, eliminating the need for operators to manually clamp and feed the anchor chain, which is suspended by hooks. This not only speeds up the efficiency of flash welding of anchor chains but also prevents inaccurate manual feeding from affecting the quality of flash welding.

[0013] This invention moves the chain link to be welded on a detachable support, while the electrode copper plate of the movable welding part only contacts the chain link to be welded, without applying any upsetting force or large clamping force to the chain link to be welded. This effectively reduces the existing practice of directly moving the chain link to be welded on the electrode copper plate and applying upsetting force to the flash-welded chain link through the electrode copper plate, which easily leads to large wear on the electrode copper plate after long-term use, thus affecting the accuracy and quality of anchor chain welding.

[0014] This invention installs a chain-pulling mechanism on the inclined anchor chain support. The drive wheel on the support can drive the traction part on one side to release the other side, thereby enabling the anchor chains on both sides of the support to move synchronously. This facilitates the pulling out of the welded chain links in the groove and simultaneously feeding the unwelded chain links into the recess, thus improving the synchronicity and accuracy of chain link transfer on the support and further enhancing the efficiency and precision of automated anchor chain welding.

[0015] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

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

[0017] Figure 1 This is a welding state diagram of the anchor chain component according to an embodiment of the present invention; Figure 2 This is a diagram showing the chain link transfer state of the anchor chain component according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the cooperation of the movable welding part, the upsetting component, and the pulling chain feeding mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the movable welding part according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the upsetting component according to an embodiment of the present invention; Figure 6 This is a schematic diagram showing the cooperation of the support part, anchor chain branch, and chain pulling and feeding mechanism in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of a single anchor chain branch according to an embodiment of the present invention.

[0018] In the diagram: 1. Chassis; 2. Anchor chain components; 3. Movable welding part; 31. Support plate seat; 32. First telescopic rod; 33. Pressure plate part; 34. Electrode copper plate; 35. Recessed groove; 4. Support part; 41. Groove part; 42. Arc-shaped protrusion part; 5. Upsetting component; 51. Support plate; 52. Second telescopic rod; 53. Connecting block; 54. Upsetting block; 55. Pushing groove; 56. Guide rail assembly; 6. Anchor chain support; 61. Guide groove; 62. Limiting groove; 7. Pulling and feeding chain mechanism; 71. Guide slider; 72. U-shaped slide; 73. Support plate; 731. Hidden groove; 74. Clamping block; 75. Third telescopic rod; 76. Drive wheel; 77. Traction unit; 8. Tensioning and limiting assembly; 81. Supporting guide rod; 82. Connecting plate; 83. Movable U-shaped clip; 84. Limiting piece; 85. Fixed U-shaped clip. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0021] Please see Figures 1-7 As shown, the present invention is a flash butt welding machine for anchor chain production, including a housing 1. The housing 1 is equipped with two sets of movable welding parts 3 for flash welding of the chain links of the anchor chain component 2. The housing 1 is equipped with a support part 4 corresponding to the movable welding parts 3, and the support part 4 has a groove part 41 that cooperates with the chain link to be welded in the anchor chain component 2. The housing 1 is symmetrically equipped with forging parts 5 on both sides of the support part 4. The forging parts 5 are used to apply forging force to the chain link during welding. An anchor chain support 6 is inclinedly installed on the support part 4. The anchor chain support 6 has a guide groove part 61 that cooperates with the chain link. The guide groove part 61 is used to vertically guide and support the chain link to be welded. The anchor chain support 6 is equipped with a pulling and feeding mechanism 7. The pulling and feeding mechanism 7 is used to pull the unwelded chain link to the support part 4, while the chain link that has been welded will be transferred and detached from the support part 4 simultaneously. It should be noted that the support part 4 is a metal block of a certain thickness, with an arc-shaped protrusion on its top. The two sides of the arc-shaped protrusion have sloping surfaces that are flush with the support part 4. The support part 4 can be detachably installed on the front side of the housing 1 by means of internal hexagon screws and an adjustment groove. The support part 4 is a long strip plate, with one end of it welded or bolted to the support part 4, and the other end of it suspended. The front and rear width dimensions of the guide groove 61 and the groove 41 match the chain link diameter of the anchor chain 2 to be welded. The support part 4 is located directly below the movable welding part 3. The upsetting part 5 is located on the left and right sides of the support part 4 and is also located above the inclined anchor chain support 6. Specifically, the welding process of the flash butt welding machine of the present invention on the anchor chain 2 is as follows: First, place the unwelded anchor chain 2 on the right anchor chain support 6, and place the chain link to be welded vertically into the guide groove 61, while the chain link that does not need to be welded is laid flat in contact with the surface of the anchor chain support 6 (the chain link to be welded and the chain link that does not need to be welded are in a perpendicular state), and the chain link located at the head end of the anchor chain 2 needs to be placed vertically into the groove 41, with the welding notch of the chain link facing upwards; Second, when the chain link at the beginning end is placed in the groove 41, the upsetting component 5 is controlled to work so that it extends synchronously and first contacts the upper arc-shaped parts on both sides of the chain link (since the other chain link connected to the chain link to be welded is in an inclined horizontal state, the arc-shaped part of the chain link will contact the lower arc-shaped part of the chain link to be welded), to prevent the chain link to be welded from tilting in the groove 41. Third, the two sets of movable welding parts 3 are then controlled to descend vertically, and the welding transformer is turned on. This allows the positive and negative copper electrodes of the movable welding parts 3 to slowly contact the ring walls on both sides of the gap in the vertical chain link, creating multiple point contacts with slight end-face contact. Current flows through these contact points, instantly generating high temperatures that melt the metal and form a liquid crossbeam. The current density in the crossbeam is extremely high, causing the metal to evaporate and expand rapidly. The crossbeam explodes, and metal droplets and steam are ejected at high speed, forming a "flash." At the moment the flash ends, while maintaining the power supply, the left and right symmetrical upsetting parts 5 are controlled to apply a rapid and powerful upsetting force (up to hundreds to thousands of kilonewtons), quickly narrowing the end-face gap and squeezing out residual liquid metal and oxide impurities. After the current is cut off, the upsetting force is maintained for a period of time until the joint cools to a sufficient strength. When the movable welding parts 3 contact the chain link to be welded, the operator can place a shielding plate at the movable welding parts 3 and the support part 4 to block the welding sparks. Fourth, after the chain link welded on the support part 4 has cooled down, the movable welding part 3 is controlled to rise vertically, and then the forging blocks 54 of the forging parts 5 on the left and right sides are controlled to retract, so that they are released from the clamping of the welded chain link. The retraction distance of the forging blocks 54 needs to be controlled so that they do not interfere with the movement of the next chain link to be welded and in a vertical state into the groove part 41. Then the pulling chain feeding mechanism 7 on the anchor chain support 6 is controlled to work, so that the next chain link to be welded in a vertical state is transferred from the anchor chain support 6 to the groove part 41 of the support part 4. The chain link welded in the groove part 41 will be transferred to the anchor chain support 6 on the other side at the same time. By repeating the above actions, the fast and efficient welding process of the anchor chain part 2 can be achieved.

[0022] As the most preferred embodiment of the present invention, see [reference]. Figures 2-4 As shown, the two sets of movable welding parts 3 include a support plate seat 31 mounted on the chassis 1, a first telescopic rod 32 mounted on the support plate seat 31, a pressure plate part 33 mounted on the output end of the first telescopic rod 32, and symmetrical electrode copper plates 34 mounted on the pressure plate part 33. The symmetrical electrode copper plates 34 have recessed grooves 35 that cooperate with the chain links. Specifically, two symmetrical copper electrode plates 34 on the lower surface of the same pressure plate part 33 are respectively connected to the positive and negative poles of the transformer conductor, and the two copper electrode plates 34 are installed on the pressure plate part 33 in a non-contact and insulated manner. Therefore, when the chain link to be welded moves vertically into the groove 41 and is pressed against by the upsetting component 5 on both sides, the output rods of the two first telescopic rods 32 on the two support plates 31 extend out, which will cause the symmetrical pressing part to drive the two sets of symmetrical electrode copper plates 34 to descend vertically, so that the recessed grooves 35 formed by the symmetrical electrode copper plates 34 are fitted onto the outer ring surface on both sides of the notch of the chain link. Then the transformer is controlled to work, and the upsetting component 5 works synchronously, which facilitates the flash butt welding of the vertically supported chain link in the groove 41. Once the chain link is welded, the output rod of the first telescopic rod 32 retracts, causing the pressure plate 33 and the electrode copper plate 34 to rise synchronously and disengage from the chain link. Then, the upsetting component 5 disengages from the chain link, making it easier for the pulling chain feeding mechanism 7 to pull the welded chain link off the support part 4. At the same time, the unwelded chain link moves synchronously into the groove part 41 of the support part 4, and then undergoes flash welding through the vertically descending electrode copper plate 34.

[0023] As the most preferred embodiment of the present invention, see [reference]. Figure 2 , Figure 3 and Figure 5As shown, the upsetting component 5 includes a support plate 51 fixed on the housing 1 and located on the side of the support part 4, a second telescopic rod 52 mounted on the outside of the support plate 51 via a support member, and a connecting block 53 mounted on the output end of the second telescopic rod 52 and connecting the upsetting block 54. The upsetting block 54 has a pushing groove 55 that mates with the outer ring surface of the chain link. The connecting block 53 is connected to the support plate 51 via a guide rail assembly 56, and the pushing groove 55 of the upsetting block 54 fits against the upper half of the vertical chain link's ring surface. Specifically, the output rods of the left and right symmetrical second telescopic rods 52 all face the support part 4. The forging block 54 is detachably connected to the output rod of the second telescopic rod 52 through the connecting block 53, which facilitates the replacement of the forging block 54 that is worn after long-term use. The connecting block 53 is connected to the support plate 51 through the guide rail assembly 56, which can guide the horizontally moving forging block 54 and also support the connecting block 53 and the forging block 54. Therefore, when the chain link to be welded moves into the groove 41, the output rod of the second telescopic rod 52, which is symmetrical on the left and right, extends, so that it drives the top forging block 54 to move horizontally towards the support part 4 through the connecting block 53. When the push groove 55 at the end of the top forging block 54 engages with the outer ring surface of the left and right semicircles of the chain link, the output rod of the second telescopic rod 52 stops extending. When the movable welding part 3 continuously performs "flashing" treatment on the chain link, the output rod of the second telescopic rod 52 continues to extend, so that it continuously applies a forging force to the upper part of the chain link through the top forging block 54 (since the push groove 55 of the top forging block 54 is attached to the upper half of the outer ring surface of the left and right semicircles of the chain link), so that it can quickly reduce the end face gap, squeeze out the residual liquid metal and oxide impurities, and continue to maintain the forging force for a period of time after the current is cut off until the joint cools to a sufficient strength. After the chain link is welded, the movable welding part 3 is first controlled to rise and detach from the chain link. Then, the output rod of the left and right symmetrical second telescopic rod 52 is extended to drive the top forging block 54 to slowly detach from the chain link. It is also necessary to control the moving distance of the top forging block 54 so that the distance from the lower surface of the top forging block 54 to the highest point of the inclined anchor chain support 6 is greater than the height of the vertical chain link. This ensures that when the chain link to be welded enters the groove 41 under the traction of the chain feeding mechanism 7, the top forging block 54 will not interfere with the normal movement of the vertical chain link.

[0024] As the most preferred embodiment of the present invention, see [reference]. Figure 2 , Figure 3 and Figure 6As shown, the top of the support part 4 is formed with an arc-shaped protrusion 42, and the two sides of the arc-shaped protrusion 42 are formed with sloping surfaces. The inclined surface of the inclined anchor chain support 6 is flush with the sloping surface, so that the bottom of the guide groove 61 and the groove of the groove 41 are on the same inclined surface. Specifically, the arc-shaped protrusion 42 facilitates the extension of the vertical chain link notch to be welded out of the groove 41. The arc-shaped protrusion 42 is also connected flush with the inclined anchor chain support 6 via a ramp surface. This not only facilitates the accurate movement of the vertical chain link to be welded into the groove 41, but also allows the horizontal chain link connected to the vertical chain link to lie flat against the ramp surface because the length of the left and right slots of the groove 41 is less than the length of the chain link to be welded. This enables the ramp surface on both sides of the arc-shaped protrusion 42 to support the horizontal chain link, preventing the chain link to be welded in the groove 41 from tilting or shifting due to the pulling force of the horizontal chain links on both sides, which would affect the accuracy of the chain link welding.

[0025] As the most preferred embodiment of the present invention, see [reference]. Figure 6 and Figure 7 As shown, the chain pulling mechanism 7 includes a limiting groove 62 opened on the upper surface of the anchor chain support 6 and located on both sides of the guide groove 61, a guide slider 71 movably installed in the limiting groove 62, a U-shaped slide block 72 movably sleeved on the anchor chain support 6, and a support plate 73 connecting the vertical wall of the U-shaped slide block 72 and the guide slider 71. Among them, the two support plates 73 are provided with hidden grooves 731 for hiding the clamping blocks 74, and the support plates 73 are provided with third telescopic rods 75 for moving the clamping blocks 74, while the symmetrical clamping blocks 74 are clamped on the chain links in a vertical state. Further specifying, the chain-pulling mechanism 7 also includes a power source embedded in the support part 4, a drive wheel 76 connected to the output shaft of the power source, and a traction part 77 wound around the drive wheel 76. The two ends of the traction part 77 are respectively connected to U-shaped slide blocks 72 that are slidably sleeved on the two anchor chain supports 6. An elastic component is installed in the limiting groove 62, and the two ends of the elastic component are respectively connected to the groove wall of the limiting groove 62 and the guide slider 71. It should be noted that: the limiting groove 62 is opened along the horizontal length of the anchor chain support 6, and the two vertical walls of the U-shaped slide 72 are integrated with the support plate 73. The guide slider 71 can be fixed to the lower surface of the support plate 73 by welding. The guide slider 71 is pushed onto the anchor chain support 6 through the opening at one end of the limiting groove 62. Therefore, the U-shaped slide 72 can be slidably fitted onto the anchor chain support 6, and then the opening at one end of the limiting groove 62 is sealed by a sealing block. The power source is either a servo motor or a rotary cylinder with a self-locking function, and a drive wheel 76 is detachably installed on the output shaft of the power source. The traction part 77 is made of steel wire rope or other material rope, so that it has a certain friction with the drive wheel 76. The elastic component is preferably a spring, and each elastic component can be installed in the limiting groove 62 near the support part 4. Specifically, when it is necessary to pull the welded chain link out of the groove 41, the output rod of the third telescopic rod 75 fixed on the support plate 73 is extended to drive the clamping block 74 located in the hidden groove 731 to extend and fit against the vertical chain link. The other part of the clamping block 74 remains in the hidden groove 731. Thus, the symmetrical clamping blocks 74 located on the same anchor chain support 6 can clamp and fix the vertical chain link. After the movable welding part 3 and the upsetting part 5 are disengaged from the welded chain link, the power source fixed in the support part 4 is controlled to work, so that its output shaft drives the drive wheel 76 to rotate counterclockwise. At this time, the traction part 77, which is wrapped around the drive wheel 76 and located on the right side, will be pulled. (The length of the traction part 77 located on the right side of the drive wheel 76 decreases), while the traction part 77 located on the left side is in a continuously releasing state (the length of the traction part 77 located on the left side of the drive wheel 76 increases). The pulled traction part 77, through the cooperation of the U-shaped slide block 72 and the clamping block 74, can drive the clamped chain link to slide upward along the inclined anchor chain branch 6 (at this time, the spring connected to the guide slider 71 is continuously compressed), so that the unwelded chain link moves into the groove 41. The U-shaped slide block 72 located on the side of the released traction part 77 is pushed by the compressed and released elastic component to slide downward along the anchor chain branch 6 on the left side, and then the welded chain link clamped by the clamping block 74 is pulled away from the groove 41. After the chain link to be welded moves into the groove 41 of the support part 4, it needs to be clamped and fixed by the upsetting part 5. Then, the output rod of the third telescopic rod 75 is retracted, causing it to drive the clamping block 74 to retract into the hidden groove 731. The outer end face of the clamping block 74 needs to be away from the horizontal outer surface of the chain link. Then, when the drive wheel 76 rotates clockwise, the traction part 77 on the left side will be continuously pulled, while the traction part 77 on the right side will be released. Therefore, the traction part on the left side will drive the U-shaped slide block 72 to move upward along the anchor chain support 6. At this time, the elastic component connected to the guide slider 71 is compressed, while the U-shaped slide block 72 on the right side is compressed. Driven by the elastic restoring force of the spring, it will slide downwards along the right anchor chain support 6, causing the two U-shaped slide blocks 72 to slide to the initial position of the support plate 73 (at this time, the traction parts 77 on both sides of the drive wheel 76 are in an equal length state). At this time, the drive wheel 76 is in a fixed state under the self-locking state of the power source, which facilitates the limiting and fixing of the traction parts 77 that have returned to equal length on both sides. This prevents the elastic restoring force of the compressed elastic component on the left anchor chain support 6 from acting on the U-shaped slide block 72 through the guide slider 71, which would cause the U-shaped slide block 72 to slide freely on the left anchor chain support 6, thus affecting the feeding of the chain link to be welded by the chain feeding mechanism 7. When the two U-shaped slide blocks 72 slide to their initial positions (or are located at the midpoint of the anchor chain support 6), the output rod of the third telescopic rod 75 can be extended to drive the clamping block 74 to fit against the vertically positioned chain link. This allows the extended clamping block 74 to limit the vertically positioned chain link on the anchor chain support 6, preventing the vertically positioned chain link from tilting or falling over on the anchor chain support 6. This would affect the precise movement of the vertically positioned chain link to be welded into the groove 41 for welding.

[0026] As the most preferred embodiment of the present invention, see [reference]. Figure 6 and Figure 7 As shown, the anchor chain support 6 is equipped with a tensioning and limiting assembly 8 for limiting the traction part 77. The tensioning and limiting assembly 8 includes a support guide rod 81 that is movably installed through the vertical wall of the U-shaped slide 72, a connecting plate 82 installed at the end of the support guide rod 81, and a movable U-shaped clamp 83 installed on the connecting plate 82 for limiting the traction part 77. The other end of the support guide rod 81 is equipped with a limiting piece 84, and the limiting piece 84 is connected to the vertical wall of the U-shaped slide 72 through an elastic component. Further specified, the tensioning and limiting assembly 8 also includes a fixing U-shaped clip 85, which is fixedly installed on the side of the anchor chain support 6 on one side of the welded chain link. The support part 4 is also equipped with fixing U-shaped clips 85 on both sides of the drive wheel 76, and the fixing U-shaped clips 85 are in active contact with the traction part 77. It should be noted that the elastic component also uses a spring and is sleeved on the support guide rod 81. The support guide rod 81 is installed on the U-shaped slide block 72 by sliding through. The outer side of the limiting piece 84 is installed on the support guide rod 81 by a nut. The movable U-shaped clip 83 is installed on the connecting plate 82 by screws. The fixed clip is also fixed on the anchor chain support 6 and the support part 4 by screws. The U-shaped clip 85 fixed on the left anchor chain support 6 is installed on the back side of the U-shaped slide block 72 in the sliding direction. Specifically, when the U-shaped slide block 72 located on the right anchor chain support 6 slides upward, since the rear end of the support guide rod 81 is connected to the U-shaped slide block 72 through the limiting plate 84 and the elastic component, the U-shaped slide block 72 will drive the movable U-shaped clamp 83 to move towards the support part 4 through the support guide rod 81 and the connecting plate 82, so that the pulled traction part 77 can be continuously tensioned and limited by the continuously moving movable U-shaped clamp 83. When the continuously moving connecting plate 82 abuts against the fixed U-shaped clamp 85 on the same straight line and located on the right side of the support part 4, as the right side... As the U-shaped slide block 72 continues to slide upward, the clamping force on the connecting plate 82 will act on the support guide rod 81, causing the support guide rod 81 at the right end of the U-shaped slide block 72 to be in a continuously elongated state. At this time, the elastic component will be stretched. Since the fixed U-shaped clip 85 on the anchor chain support 6 on the left side is installed on the back of the U-shaped slide block 72, the fixed U-shaped clip 85 will limit and tighten the traction part 77 that is continuously loosened and pushed and pulled by the elastic component, preventing the traction part 77 on the left side of the support part 4 from becoming entangled or bulging. When the U-shaped slide block 72 slides back to its original position on the anchor chain support 6, the U-shaped slide block 72 on the right side will drive the support guide rod 81, the connecting plate 82 and the movable U-shaped clamp 83 to slowly move away from the support part 4. When the connecting plate 82 is completely disengaged from the fixed U-shaped clamp 85, the restoring force of the elastic component on the support guide rod 81 will push the movable U-shaped clamp 83 to slide away from the U-shaped slide block 72, thereby facilitating accurate tensioning and limiting of the traction part 77 after reset.

[0027] It should be summarized that the first telescopic rod 32, the second telescopic rod 52, and the third telescopic rod 75 are all made of electric push rod, pneumatic cylinder, or hydraulic cylinder. After the vertical chain links on the right anchor chain support 6 are welded, the anchor chain 2 can be removed from the left anchor chain support 6. Then, the other set of chain links to be welded on the anchor chain 2 can be placed vertically on the right anchor chain support 6, which facilitates the rapid flash welding of the other set of chain links on the anchor chain 2.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flash butt welding machine for anchor chain production, comprising a chassis, characterized in that, The chassis is equipped with two sets of movable welding parts for flash welding of the chain links of the anchor chain components; The chassis is equipped with a support part corresponding to the movable welding part, and the support part has a groove part that cooperates with the chain link to be welded to the anchor chain part. The chassis is symmetrically equipped with forging components on both sides of the support section. The forging components are used to apply forging force to the chain links during welding. An anchor chain branch is obliquely mounted on the support part, and a guide groove is formed on the anchor chain branch to cooperate with the chain link. The guide groove is used to vertically guide and support the chain link to be welded. The anchor chain support is equipped with a chain-pulling and feeding mechanism, which is used to pull the unwelded chain links onto the support, while the welded chain links will be transferred and detached from the support simultaneously.

2. The flash butt welding machine for anchor chain production according to claim 1, characterized in that, The two sets of movable welding parts include a support plate mounted on the chassis, a first telescopic rod mounted on the support plate, a pressure plate mounted on the output end of the first telescopic rod, and symmetrical electrode copper plates mounted on the pressure plate, wherein the symmetrical electrode copper plates have recessed grooves that cooperate with the chain links.

3. The flash butt welding machine for anchor chain production according to claim 1, characterized in that, The upsetting component includes a support plate fixed on the machine housing and located on the side of the support part, a second telescopic rod installed on the outside of the support plate via a support member, and a connecting block installed at the output end of the second telescopic rod and connecting the upsetting block. The upsetting block has a pushing groove that mates with the outer ring surface of the chain link. The connecting block and the support plate are connected by a guide rail assembly, and the pushing groove of the top forging block fits against the upper half of the vertical chain ring surface.

4. The flash butt welding machine for anchor chain production according to claim 1, characterized in that, The top of the support part has an arc-shaped protrusion, and the two sides of the arc-shaped protrusion have sloping surfaces. The inclined surface of the inclined anchor chain support is flush with the sloping surface, so that the bottom of the guide groove and the groove part are on the same horizontal plane.

5. A flash butt welding machine for anchor chain production according to claim 4, characterized in that, The chain-pulling mechanism includes a limiting groove formed on the upper surface of the anchor chain support and located on both sides of the guide groove, a guide slider movably installed in the limiting groove, a U-shaped slide block movably sleeved on the anchor chain support, and a support plate connecting the vertical wall of the U-shaped slide block and the guide slider. The two support plates are provided with hidden grooves for hiding the clamping blocks. The support plates are equipped with a third telescopic rod for moving the clamping blocks. The symmetrical clamping blocks are clamped on the vertically positioned chain links.

6. A flash butt welding machine for anchor chain production according to claim 5, characterized in that, The chain-pulling mechanism also includes a power source embedded in the support, a drive wheel connected to the output shaft of the power source, and a traction part wound around the drive wheel. The two ends of the traction part are respectively connected to U-shaped slides that are slidably sleeved on the two anchor chain supports. An elastic component is installed in the limiting groove, and the two ends of the elastic component are respectively connected to the groove wall of the limiting groove and the guide slider.

7. A flash butt welding machine for anchor chain production according to claim 6, characterized in that, The anchor chain support is equipped with a tensioning and limiting assembly for limiting the traction part. The tensioning and limiting assembly includes a support guide rod that is movably installed through the vertical wall of the U-shaped slide, a connecting plate installed at the end of the support guide rod, and a movable U-shaped clip installed on the connecting plate for limiting the traction part. The other end of the support guide rod is equipped with a limiting plate, and the limiting plate is connected to the vertical wall of the U-shaped slide through an elastic component.

8. A flash butt welding machine for anchor chain production according to claim 7, characterized in that, The tensioning and limiting assembly also includes a fixed U-shaped clip, which is fixedly installed on the side of the anchor chain support on one side of the welded chain link. Fixed U-shaped clips are also installed on both sides of the drive wheel on the support, and the fixed U-shaped clips are in contact with the traction part.

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