Welding positioning device for large track shoe

Abstract

The invention relates to the field of machining equipment, and discloses a welding positioning device for a large track shoe, which comprises a working box, a pushing mechanism, a clamping mechanism, a clamping mechanism, a clamping mechanism, a clamping mechanism, a clamping mechanism, a clamping mechanism and a clamping mechanism, and is characterized in that a base plate is slidably connected to a top slot of the working box through a sliding block, and connecting columns are fixedly connected to the top of the base plate and are arranged on the left and right sides of the base plate; comprising a connecting plate fixedly connected with the top of a connecting column, telescopic belts are rotationally connected to the two sides of the inner wall of the connecting plate through rotating shafts, a three-phase motor is fixedly connected to the left side of the connecting plate, a bottom plate is fixedly connected to the tops of the telescopic belts, a connecting frame is fixedly connected to the top of the bottom plate, and pushing wheels are rotationally connected to the two sides of the inner wall of the connecting frame through rotating shafts. By arranging the pushing mechanism, the track shoes on the two sides in the telescopic belt can be fixed through the clamping connection discs on the two sides, the track shoes can be automatically positioned to the welding positions, manual operation positioning is not needed, and deviation between the welding points of the track shoes on the two sides and the welding positions is avoided.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing equipment, in particular to a welding positioning device for a large track shoe. Background Art

[0002] The welding positioning device of large track plates fixes the various components of the track plates in the correct position through the positioning fixture, and then fine-tunes the position of the components through the adjustment mechanism to ensure welding accuracy. During the welding process, the support structure provides stable support for the track plates to prevent them from deformation. The control system is responsible for controlling the various parts of the positioning device to achieve automated operation and improve welding efficiency and quality.

[0003] Patent application with application number CN201310325787.4 discloses a welding positioning device for a large track shoe, including a base, a hinge seat is provided on the base, the hinge seat is provided with a hinge seat hole, a core shaft is provided in the hinge seat hole, and a horizontal positioning block and a vertical positioning block are also provided on the base, and two horizontal positioning blocks and two vertical positioning blocks are provided.

[0004] However, this patent also has the following shortcomings, that is, when welding and fixing the large track plates, the welding position between the two large track plates needs to be fixed before welding, and the current welding technology cannot automatically position multiple large track plates, and when multiple large track plates are manually moved to the welding point, the welding angle is prone to deviation. In view of this situation, a welding positioning device for large track plates is specially proposed. Summary of the invention

[0005] The object of the present invention is to provide a welding positioning device for a large track shoe to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a welding positioning device for a large crawler shoe, comprising a working box, a top slot of the working box is slidably connected to a pad through a slider, the top of the pad is fixedly connected to a connecting column, and the connecting column is arranged on the left and right sides of the pad, and further comprising:

[0007] The pushing mechanism includes a connecting plate fixedly connected to the top of the connecting column, telescopic belts are rotatably connected to the inner wall of the connecting plate on both sides through a rotating shaft, a three-phase motor is fixedly connected to the left side of the connecting plate, the top of the telescopic belt is fixedly connected to the bottom plate, the top of the bottom plate is fixedly connected to the connecting frame, and the inner wall of the connecting frame is rotatably connected to pushing wheels on both sides through a rotating shaft, a telescopic component is provided on the inner wall of the connecting plate, a pressing mechanism is provided on the top of the connecting plate, and a placing mechanism is provided on the inner wall of the connecting plate, and the bottom plate on the surface of the telescopic belt rotates inside the connecting plate to the surface of the telescopic block.

[0008] The telescopic assembly comprises a telescopic block fixedly connected to the inner wall of the connecting plate, the inner wall of the telescopic block is fixedly connected to a pushing ring, the inner wall of the pushing ring is slidably connected to a contact foot via a slider, the end of the pushing ring away from the inner wall of the telescopic block is fixedly connected to a telescopic tube, the end of the telescopic tube away from the pushing ring is slidably connected to the bottom slot of the telescopic block, the left side of the telescopic block is fixedly connected to an air pressure tube, the end of the air pressure tube away from the telescopic block is fixedly connected to a contraction block, the top of the contraction block is fixedly connected to an air intake pipe, when the contact foot slides on the inner wall of the pushing ring to the surface of the telescopic tube.

[0009] According to the above technical solution, the pressing mechanism includes a clamping frame, which is fixedly connected to the top of the connecting plate, and a placement box is fixedly connected to the right side of the clamping frame. Buffer components are provided on both sides of the placement box, and an absorption component is provided on the inner wall of the placement box, so that the air pressure is discharged into the interior of the absorption plate through the placement box.

[0010] According to the above technical solution, the downward pressing mechanism also includes a contraction chamber, which is fixedly connected to the bottom of the placement box, the inner wall of the contraction chamber is slidably connected to the contraction chamber, the bottom of the contraction chamber is fixedly connected to a telescopic pad, and one end of the air inlet pipe away from the contraction block is fixedly connected to the surface of the contraction chamber. When the telescopic pad expands and contracts toward the inside of the contraction chamber, it will cause pressure on the buffer tube.

[0011] According to the above technical solution, the absorption component includes an absorption plate, one end of which is fixedly connected to the inner wall of the placement box, expansion grooves are provided on both sides of the inner wall of the absorption plate, and an absorption tube is slidably connected to the bottom of the inner wall of the expansion groove. When the air intake pipe discharges the air pressure into the contraction cavity, the air pressure can be discharged into the interior of the placement box through the contraction cavity.

[0012] According to the above technical solution, the buffer assembly includes a buffer box, which is fixedly connected to both sides of the placement box, a buffer tube is slidably connected to the bottom of the inner wall of the buffer box, an absorption wheel is fixedly connected to the top of the buffer tube, and contact strips are fixedly connected to both sides of the inner wall of the buffer box. One end of the buffer tube expands and contracts upward on the inner wall of the buffer box due to external pressure.

[0013] According to the above technical solution, the placement mechanism includes a placement rack, which is fixedly connected to the inner wall of the connecting plate, a placement plate is fixedly connected to the bottom of the inner wall of the placement rack, a connecting pipe is fixedly connected to the bottom of the inner wall of the placement plate, a suction tube is fixedly connected to the surface groove of the placement plate, and a limiting component is provided at one end of the suction tube. A large amount of heat will be transferred inward into the interior of the storage tank after entering the interior of the suction tube.

[0014] According to the above technical scheme, the limiting assembly includes a storage tank, which is fixedly connected to one end of the pipette tube, and a circular ring is fixedly connected to the end of the storage tank away from the pipette tube. The inner wall of the circular ring is rotatably connected to the limiting arm on both sides through a rotating shaft, and a compression rod is fixedly connected to the bottom of the inner wall of the limiting arm. The inner wall of the limiting arm is fixedly connected to a limiting membrane on both sides, and support rings are fixedly connected to both sides of the compression rod. The support ring is fixedly connected to the surface of the limiting membrane at one end away from the compression rod, and when the compression rod is extended and retracted outward, the limiting membrane will be pushed through the support rings on both sides thereof.

[0015] Compared with the prior art, the present invention provides a welding positioning device for a large track shoe, which has the following beneficial effects:

[0016] 1. The present invention is provided with a pushing mechanism, and the track plates on both sides of the telescopic belt can be fixed by the clamping plates on both sides, so that the telescopic belt stops rotating, thereby automatically positioning the track plates on both sides of the telescopic belt to the required welding positions. By setting up this mechanism, multiple track plates can be automatically positioned to the welding positions without manual positioning operation, thereby avoiding the deviation between the welding points of the track plates on both sides and the welding positions.

[0017] 2. The present invention is provided with a buffer assembly. When the pressure on the buffer tube is transmitted to the surface of the contact strip through the absorption wheel, the assembly can absorb and buffer the impact on the track plates on both sides during welding, thereby ensuring that the track plates will not become loose on the surface of the fixing device during welding, thereby avoiding the welding positions of the track plates on both sides from being offset and causing welding failure.

[0018] 3. The present invention is provided with an absorption component. A large number of sparks generated by the welding device may cause overheating damage to the surface of the track shoe. By providing this component, when the welding device is spray-welding, the sparks generated will be absorbed by the absorption holes on the surface of the multiple absorption tubes, thereby avoiding overheating damage to the surface of the track shoe caused by a large number of sparks generated during spray-welding, and at the same time, it can also protect the surface of the telescopic pad from being damaged by the large number of sparks.

[0019] 4. The present invention is provided with a placement mechanism, and the flame sprayed from the welding device can be compressed and limited by a plurality of limiting membranes expanding outwards. When the flame sprayed from the welding device is spray-welded at the welding points of the track plates on both sides, a part of the flame will be absorbed by the absorption holes on the surface of the limiting membrane. By providing this mechanism, it is ensured that when spray-welding is performed on the welding points of large track plates, a large amount of sparks generated will not cause overheating damage to the surface of the track plates, thereby affecting the welding efficiency of the track plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the pushing mechanism of the present invention;

[0023] Figure 3 is a stereogram of the telescopic assembly of the present invention;

[0024] Figure 4 is a three-dimensional diagram of the pressing mechanism of the present invention;

[0025] Figure 5 is a perspective view of an absorbent assembly of the present invention;

[0026] Figure 6 is a three-dimensional diagram of the buffer assembly of the present invention;

[0027] Figure 7 It is a three-dimensional diagram of the placement mechanism of the present invention;

[0028] Figure 8 It is a three-dimensional diagram of the limiting assembly of the present invention.

[0029] In the figure: 1, working box; 2, pad; 3, connecting column; 4, three-phase motor; 5, pushing mechanism; 501, connecting plate; 502, telescopic belt; 503, bottom plate; 504, connecting frame; 505, pushing wheel; 506, telescopic assembly; 5061, telescopic block; 5062, telescopic tube; 5063, pushing ring; 5064, contact foot; 5065, air pressure tube; 5066, contraction block; 5067, air inlet pipe; 6, pressing mechanism; 601, clamping frame; 602, placing box; 603, contraction cavity; 604, telescopic pad; 605 , snap-on disk; 606, absorption assembly; 6061, absorption plate; 6062, absorption tube; 6063, telescopic slot; 607, buffer assembly; 6071, buffer box; 6072, buffer tube; 6073, absorption wheel; 6074, contact strip; 7, placement mechanism; 701, placement rack; 702, placement disk; 703, connecting tube; 704, suction tube; 705, limiting assembly; 7051, ring; 7052, storage tank; 7053, limiting arm; 7054, compression rod; 7055, support ring; 7056, limiting membrane. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] For example, see Figure 1-Figure 4 The present invention provides a technical solution: a welding positioning device for a large crawler shoe, comprising a working box 1, a pad 2 is slidably connected to the top slot of the working box 1 through a slider, a connecting column 3 is fixedly connected to the top of the pad 2, and the connecting column 3 is arranged on the left and right sides of the pad 2, and also includes:

[0032] The pushing mechanism 5 includes a connecting plate 501 fixedly connected to the top of the connecting column 3. A plurality of plug-in grooves are provided on the surface of the connecting plate 501, and a plurality of track shoes can be plugged and fixed inside. The inner wall of the connecting plate 501 is rotatably connected with telescopic belts 502 on both sides through a rotating shaft. The left side of the connecting plate 501 is fixedly connected with a three-phase motor 4. The top of the telescopic belt 502 is fixedly connected with a bottom plate 503. The top of the bottom plate 503 is fixedly connected with a connecting frame 504. The inner wall of the connecting frame 504 is rotatably connected with pushing wheels 505 on both sides through a rotating shaft. The inner wall of the connecting plate 501 is provided with a telescopic component 506. The top of the connecting plate 501 is provided with a pressing mechanism 6. The inner wall of the connecting plate 501 is provided with a placing mechanism 7.

[0033] The telescopic assembly 506 includes a telescopic block 5061 fixedly connected to the inner wall of the connecting plate 501, a pushing ring 5063 fixedly connected to the inner wall of the telescopic block 5061, the pushing ring 5063 has telescopic elasticity, and when subjected to external pressure, it will bend and telescope inward and press the telescopic tube 5062, so that air pressure is generated inside the telescopic tube 5062 and flows into the air pressure tube 5065, the inner wall of the pushing ring 5063 is slidably connected to the contact foot 5064 through a slider, the end of the pushing ring 5063 away from the inner wall of the telescopic block 5061 is fixedly connected to the telescopic tube 5062, the end of the telescopic tube 5062 away from the pushing ring 5063 is slidably connected to the bottom slot of the telescopic block 5061, the left side of the telescopic block 5061 is fixedly connected to the air pressure tube 5065, the end of the air pressure tube 5065 away from the telescopic block 5061 is fixedly connected to the contraction block 5066, and the top of the contraction block 5066 is fixedly connected to the air intake pipe 5067.

[0034] The pressing mechanism 6 includes a clamping frame 601, which is fixedly connected to the top of the connecting plate 501. A placement box 602 is fixedly connected to the right side of the clamping frame 601. Buffer components 607 are arranged on both sides of the placement box 602. An absorption component 606 is arranged on the inner wall of the placement box 602.

[0035] The pressing mechanism 6 also includes a contraction chamber 603, which is fixedly connected to the bottom of the placement box 602. The inner wall of the contraction chamber 603 is slidably connected to the contraction chamber 603. The bottom of the contraction chamber 603 is fixedly connected to a telescopic pad 604. The telescopic pad 604 has a cavity inside. The telescopic pad 604 is made of a telescopic membrane material. When compressed gas is received in the cavity, it will expand and contract outward. The bottom of the telescopic pad 604 is fixedly connected to a clamping plate 605. An adsorption ring is installed at the bottom of the clamping plate 605. The clamping plate 605 can be adsorbed and fixed on the surface of the track shoe through the adsorption ring. The end of the air inlet pipe 5067 away from the contraction block 5066 is fixedly connected to the surface of the contraction chamber 603.

[0036] The working method of the first embodiment is as follows: first, a plurality of track shoes are fixed in the surface plug-in grooves of the telescopic belt 502, and then the three-phase motor 4 is started to drive the rotating shaft on the inner wall of the connecting plate 501 to rotate, and then the telescopic belt 502 is driven to rotate inside the connecting plate 501 by the rotating shaft. When the bottom plate 503 on the surface of the telescopic belt 502 rotates inside the connecting plate 501 to the surface of the telescopic block 5061, the pushing wheel 505 contacts the surface of the contact foot 5064, and the contact foot 5064 is squeezed to slide on the inner wall of the pushing ring 5063. When the contact foot 5064 slides on the inner wall of the pushing ring 5063 to the surface of the telescopic tube 5062, the pushing ring 5063 will bend inward during the sliding process and drive one end thereof to press the telescopic tube 5062, so that the telescopic tube 5062 is telescoped toward the inside of the telescopic block 5061. When the telescopic tube 5062 is telescoped inward, The generated air pressure enters the air pressure pipe 5065 through the internal passage of the telescopic block 5061, and enters the contraction block 5066 through the two air pressure pipes 5065, and the air pressure is discharged into the contraction chamber 603 through the air intake pipe 5067. When the air pressure is discharged into the contraction chamber 603 through the air intake pipe 5067, it will drive the telescopic pad 604 inside it to expand and contract outward. When the telescopic pad 604 expands and contracts outward to the surface of the track shoe, the surface of the track shoe will be adsorbed and fixed through the clamping plate 605. The track shoes on both sides of the telescopic belt 502 can be fixed by the clamping plates 605 on both sides, so that the telescopic belt 502 stops rotating, thereby automatically positioning the track shoes on both sides of the telescopic belt 502 to the required welding positions, which can be used to automatically position multiple track shoes to the welding position without manual positioning operation, thereby avoiding the deviation of the welding points of the track shoes on both sides from the welding positions.

[0037] Example 2: Based on Example 1, continue to refer to Figure 5 The absorption component 606 includes an absorption plate 6061, one end of which is fixedly connected to the inner wall of the placement box 602, and expansion grooves 6063 are opened on both sides of the inner wall of the absorption plate 6061. The bottom of the inner wall of the expansion groove 6063 is slidably connected with an absorption tube 6062.

[0038] The working method of the second embodiment is as follows: after the air inlet pipe 5067 discharges the air pressure into the contraction chamber 603, the air pressure can be discharged into the inside of the placement box 602 through the contraction chamber 603. When the air pressure is discharged into the inside of the absorption plate 6061 through the placement box 602, the air pressure will push the absorption tube 6062 inside the telescopic groove 6063, so that the absorption tube 6062 slides outward from the inside of the telescopic groove 6063. When the absorption tube 6062 slides to the specified position inside the telescopic groove 6063, when the welding device is in contact with the shoes on both sides, the absorption tube 6062 is pushed. When the welding points between the belt plates are connected by spray welding, since it is a large track plate, a high-power welding device is required to weld it, and a large number of sparks emitted by such a welding device may cause the surface of the track plate to be damaged by overheating. When the welding device is spray welding, the sparks generated will be absorbed by the absorption holes on the surface of the multiple absorption tubes 6062, avoiding the large number of sparks generated during spray welding from causing the surface of the track plate to be damaged by overheating, and at the same time, it can also protect the surface of the telescopic pad 604 from being damaged by the large number of sparks emitted.

[0039] Example 3: Based on Example 2, continue to refer to Figure 6 The buffer assembly 607 includes a buffer box 6071, which is fixedly connected to both sides of the placement box 602. A buffer tube 6072 is slidably connected to the bottom of the inner wall of the buffer box 6071, and an absorption wheel 6073 is fixedly connected to the top of the buffer tube 6072. A plurality of contact grooves are provided on the surface of the absorption wheel 6073, and the positions of the contact grooves correspond to the positions of the contact strips 6074. The contact strips 6074 make contact with the inside of the contact grooves, thereby offsetting the pressure on the inside of the absorption wheel 6073. Contact strips 6074 are fixedly connected to both sides of the inner wall of the buffer box 6071.

[0040] Working method of the third embodiment: When the welding device is used to spray-weld the welding points between the track shoes on both sides, the spray-welding will impact the surface of the track shoes on both sides, so that the surface of the telescopic pad 604 will expand and contract inside and outside, and when the telescopic pad 604 expands and contracts toward the inside of the contraction cavity 603, it will cause pressure on the buffer tube 6072, so that one end of the buffer tube 6072 will expand and contract upward on the inner wall of the buffer box 6071 due to the external pressure, and when the buffer tube 6072 expands and contracts upward, it will drive the absorption wheel 6073 to contact the inner wall of the buffer box 6071 When the contact strip 6074 comes into contact with the contact groove on the surface of the absorption wheel 6073, the contact strip 6074 will be compressed inward and absorb the external potential energy. When the pressure on the buffer tube 6072 is transmitted to the surface of the contact strip 6074 through the absorption wheel 6073, the impact on the track plates on both sides during welding can be absorbed and buffered and released, thereby ensuring that the track plates will not loosen on the surface of the fixing device during welding, avoiding the deviation of the welding positions of the track plates on both sides and causing welding failure.

[0041] Embodiment 4: The difference from embodiment 1 is as follows: Figure 7-Figure 8 The placement mechanism 7 includes a placement rack 701, which is fixedly connected to the inner wall of the connecting plate 501, a placement plate 702 is fixedly connected to the bottom of the inner wall of the placement rack 701, a connecting pipe 703 is fixedly connected to the bottom of the inner wall of the placement plate 702, a suction tube 704 is fixedly connected to the surface groove of the placement plate 702, a heat conduction hole is opened on the surface of the suction tube 704, and heat can be absorbed into the interior through the heat conduction hole and transferred into the storage tank 7052, and a limiting component 705 is set at one end of the suction tube 704.

[0042] The limiting assembly 705 includes a storage tank 7052, which is fixedly connected to one end of the pipette 704. The end of the storage tank 7052 away from the pipette 704 is fixedly connected to a ring 7051. The inner wall of the ring 7051 is rotatably connected to the limiting arm 7053 on both sides through a rotating shaft. The inner wall bottom of the limiting arm 7053 is fixedly connected to a compression rod 7054. The compression rod 7054 is made of a soft rubber material that can absorb heat energy. After absorbing heat, it will expand and contract outward. When the compression rod 705 When the compression rod 7054 is extended and retracted outward, the limiting film 7056 is pushed. The limiting film 7056 is fixedly connected to the inner wall of the limiting arm 7053 on both sides. The surface of the limiting film 7056 is provided with absorption holes, through which a part of the fire flow ejected by welding can be absorbed. The two sides of the compression rod 7054 are fixedly connected with support rings 7055. The two sides of the compression rod 7054 are fixedly connected with support rings 7055. One end of the support ring 7055 away from the compression rod 7054 is fixedly connected to the surface of the limiting film 7056.

[0043] The working method of the fourth embodiment is as follows: first, align the nozzle of the welding device with the inside of the connecting tube 703 and fix it. When the flame sprayed from the nozzle of the welding device will spray from the inside of the connecting tube 703 to the welding points of the track plates on both sides, the residual heat of the sprayed flame will be transferred into the inside of the suction tube 704 through the transfer groove on the surface of the connecting tube 703. After entering the inside of the suction tube 704, a large amount of heat will be transferred inwardly into the inside of the storage tank 7052. After the heat is transferred into the internal cavity of the ring 7051 through the storage tank 7052, the heat is transferred into the inside of the limit arm 7053 through the ring 7051. After entering the compression rod 7054, a large amount of heat will cause it to expand outward. When the compression rod 7054 expands and contracts outward, it will push the limiting membrane 7056 through the support rings 7055 on both sides, so that the limiting membrane 7056 inside the limiting arm 7053 expands outward. The flame sprayed from the welding device can be compressed and limited by multiple limiting membranes 7056 that expand outward. When the flame sprayed from the welding device is spray-welded at the welding points of the track plates on both sides, a part of the flame will be absorbed by the absorption holes on the surface of the limiting membrane 7056. By setting up this mechanism, it is ensured that when spray-welding is performed on the welding parts of large track plates, a large amount of sparks will cause overheating damage to the surface of the track plates, thereby affecting the welding efficiency of the track plates.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding positioning device for a large crawler shoe, comprising a working box (1), wherein a top slot of the working box (1) is slidably connected to a pad (2) via a slider, and a top of the pad (2) is fixedly connected to a connecting column (3), wherein the connecting column (3) is arranged on the left and right sides of the pad (2), and characterized in that: Also includes: The pushing mechanism (5) comprises a connecting plate (501) fixedly connected to the top of the connecting column (3), the inner wall of the connecting plate (501) being rotatably connected to telescopic belts (502) on both sides via a rotating shaft, the left side of the connecting plate (501) being fixedly connected to a three-phase motor (4), the top of the telescopic belt (502) being fixedly connected to a bottom plate (503), the top of the bottom plate (503) being fixedly connected to a connecting frame (504), the inner wall of the connecting frame (504) being rotatably connected to pushing wheels (505) on both sides via a rotating shaft, the inner wall of the connecting plate (501) being provided with a telescopic assembly (506), the top of the connecting plate (501) being provided with a pressing mechanism (6), and the inner wall of the connecting plate (501) being provided with a placing mechanism (7); The telescopic assembly (506) comprises a telescopic block (5061) fixedly connected to the inner wall of the connecting plate (501); a pushing ring (5063) fixedly connected to the inner wall of the telescopic block (5061); a contact foot (5064) slidably connected to the inner wall of the pushing ring (5063) via a slider; a telescopic tube (5062) fixedly connected to one end of the pushing ring (5063) away from the inner wall of the telescopic block (5061); an end of the telescopic tube (5062) away from the pushing ring (5063) slidably connected to a bottom slot of the telescopic block (5061); an air pressure tube (5065) fixedly connected to the left side of the telescopic block (5061); an end of the air pressure tube (5065) away from the telescopic block (5061) fixedly connected to a contraction block (5066); and an air intake pipe (5067) fixedly connected to the top of the contraction block (5066).

2. The welding positioning device for a large track shoe according to claim 1, characterized in that: The pressing mechanism (6) comprises a clamping frame (601), the clamping frame (601) being fixedly connected to the top of the connecting plate (501), a placement box (602) being fixedly connected to the right side of the clamping frame (601), buffer components (607) being arranged on both sides of the placement box (602), and an absorption component (606) being arranged on the inner wall of the placement box (602).

3. The welding positioning device for a large track shoe according to claim 2, characterized in that: The pressing mechanism (6) further comprises a contraction chamber (603), the contraction chamber (603) being fixedly connected to the bottom of the placement box (602), the inner wall of the contraction chamber (603) being slidably connected to the contraction chamber (603), the bottom of the contraction chamber (603) being fixedly connected to a telescopic pad (604), and one end of the air inlet pipe (5067) away from the contraction block (5066) being fixedly connected to the surface of the contraction chamber (603).

4. The welding positioning device for a large track shoe according to claim 2, characterized in that: The absorption assembly (606) comprises an absorption plate (6061), one end of which is fixedly connected to the inner wall of the placement box (602), telescopic grooves (6063) are provided on both sides of the inner wall of the absorption plate (6061), and an absorption tube (6062) is slidably connected to the bottom of the inner wall of the telescopic groove (6063).

5. The welding positioning device for a large track shoe according to claim 2, characterized in that: The buffer assembly (607) comprises a buffer box (6071), the buffer box (6071) being fixedly connected to two sides of the placement box (602), a buffer tube (6072) being slidably connected to the bottom of the inner wall of the buffer box (6071), an absorption wheel (6073) being fixedly connected to the top of the buffer tube (6072), and contact strips (6074) being fixedly connected to two sides of the inner wall of the buffer box (6071).

6. The welding positioning device for a large track shoe according to claim 1, characterized in that: The placement mechanism (7) comprises a placement frame (701), the placement frame (701) being fixedly connected to the inner wall of the connection plate (501), a placement plate (702) being fixedly connected to the bottom of the inner wall of the placement frame (701), a connection tube (703) being fixedly connected to the bottom of the inner wall of the placement plate (702), a pipette (704) being fixedly connected to a groove hole on the surface of the placement plate (702), and a limit assembly (705) being provided at one end of the pipette (704).

7. The welding positioning device for a large track shoe according to claim 6, characterized in that: The limiting assembly (705) comprises a material storage tank (7052), wherein the material storage tank (7052) is fixedly connected to one end of the pipette (704); the end of the material storage tank (7052) away from the pipette (704) is fixedly connected to a circular ring (7051); both sides of the inner wall of the circular ring (7051) are rotatably connected to a limiting arm (7053) via a rotating shaft; a compression rod (7054) is fixedly connected to the bottom of the inner wall of the limiting arm (7053); both sides of the inner wall of the limiting arm (7053) are fixedly connected to a limiting membrane (7056); both sides of the compression rod (7054) are fixedly connected to a supporting ring (7055); both sides of the compression rod (7054) are fixedly connected to a supporting ring (7055); and one end of the support ring (7055) away from the compression rod (7054) is fixedly connected to the surface of the limiting membrane (7056).

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