Turnover welding equipment for fastener machining and method thereof

Abstract

The invention relates to the technical field of fastener welding machining, and discloses turnover welding equipment for fastener machining and a method thereof.The turnover welding equipment comprises a support, an electric sliding table is installed on the support, a three-axis moving sliding table is arranged on the electric sliding table, a welding gun is installed on the three-axis moving sliding table, and a screw clamp is rotatably installed on a moving plate; a head clamp is arranged on the side portion of the screw clamp, the head clamp corresponds to the screw clamp, the screw clamp and the head clamp press a screw and a bolt head tightly, a welding table is installed on the bottom side of the support, a connecting rod is arranged below the head clamp, one end of the connecting rod is connected with the movable plate, and a first gear is installed on the side, away from the screw clamp, of the head clamp. A first rack used for being meshed with the first gear is arranged on the welding table, and when the first gear is meshed with the first rack, the head clamp turns over. The contact position of the screw rod and the bolt head is not prone to sliding relatively, the situation that welding thermal stress is not evenly distributed is reduced, and welding seam defects are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fastener welding processing, in particular to a flip welding device and a method for fastener processing. Background Art

[0002] During the fastener welding process, the welded parts will be heated to high temperatures, which will generate thermal stress. If the flipping is not smooth, the welded parts will be subjected to additional shock or vibration during the flipping process, which will cause uneven distribution of thermal stress and increase the risk of welding defects (such as cracks, deformation, etc.). Smooth flipping can ensure that the welded parts are heated evenly during the heating and cooling process, reduce the imbalance of thermal stress, and thus improve the welding quality.

[0003] The existing fastener welding flipping device controls the rotation of the screw and the bolt head respectively. However, if the screw and the bolt head rotate independently, it is inevitable that the screw and the bolt head will rotate asynchronously during rotation, resulting in relative sliding of the contact parts of the screw and the bolt head, thereby making the welding thermal stress unevenly distributed and causing welding defects. Therefore, it does not meet the existing needs. In this regard, we propose a flip welding device and method for fastener processing. Summary of the invention

[0004] The present invention provides a flip welding device and method for fastener processing, which has the beneficial effects of synchronous rotation of the screw and the bolt head, less prone to relative sliding at the contact position of the screw and the bolt head, reducing uneven distribution of thermal stress and reducing weld defects. It solves the problem mentioned in the above background technology that the existing fastener welding flipping device will inevitably cause the screw and the bolt head to rotate asynchronously during rotation, resulting in relative sliding at the contact position of the screw and the bolt head, thereby causing uneven distribution of welding thermal stress and generating welding defects.

[0005] The present invention provides the following technical solution: a flip welding device for fastener processing, comprising a bracket, an electric slide is installed on the bracket, a three-axis movable slide is arranged on the electric slide, a welding gun is installed on the three-axis movable slide, a movable plate is installed on the slider of the electric slide, a screw clamp is rotatably installed on the movable plate, a head clamp is arranged on the side of the screw clamp, the head clamp is arranged corresponding to the screw clamp, and the screw clamp and the head clamp press the screw and the bolt head;

[0006] A welding table is installed on the bottom side of the bracket, a connecting rod is arranged below the head clamp, one end of the connecting rod is connected to the movable plate, a No. 1 gear is installed on the side of the head clamp away from the screw clamp, and a No. 1 rack for meshing with the No. 1 gear is arranged on the welding table. When the No. 1 gear meshes with the No. 1 rack, the head clamp is flipped.

[0007] As an optional solution of the flip welding equipment for fastener processing described in the present invention, a pair of connecting sleeves are installed on the movable plate, connecting springs are arranged in the connecting sleeves, the connecting rod is slidably installed in the connecting sleeves, one end of the connecting rod is in contact with the connecting spring, and the other end of the connecting rod is installed on the movable block.

[0008] As an optional solution of the flip welding equipment for fastener processing described in the present invention, wherein: a moving block is slidably installed on the welding table, a mounting groove is opened on the moving block, the head clamp is rotatably installed in the mounting groove, a rotating sleeve is rotatably installed on the moving plate, a moving sleeve is installed in the rotating sleeve, a pair of slots are provided on the inner wall of the moving sleeve, a pair of first protrusions are provided on the outer wall of the screw clamp, and the first protrusions are slidably engaged with the slots.

[0009] As an optional solution of the flip welding equipment for fastener processing described in the present invention, wherein: the welding table is provided with a first special-shaped groove, the first special-shaped groove includes a first straight slide groove, an arc-shaped slide groove, and a second straight slide groove, the first straight slide groove, the arc-shaped slide groove and the second straight slide groove are arranged in sequence, and the second straight slide groove is parallel to the first rack;

[0010] A slider is installed at the bottom of the moving block, and the slider is slidably installed in the first special-shaped groove;

[0011] When the slider slides in the arc-shaped slide groove, the moving block simultaneously moves toward the moving plate, and the bolt head and the screw rod are butted and fitted;

[0012] When the sliding block slides in the second straight sliding groove, the head clamp drives the screw clamp to rotate one circle.

[0013] As an optional solution of the flip welding equipment for fastener processing described in the present invention, a baffle for shielding welding slag is installed on the welding table, the baffle is arranged adjacent to the first special-shaped groove, and the baffle is in sliding contact with the moving block.

[0014] As an optional solution of the flip welding equipment for fastener processing described in the present invention, wherein: a second gear is rotatably mounted on one side of the movable plate, the second gear is coaxially connected with the rotating sleeve, a second rack is mounted on the welding table, the second gear is intermittently meshed with the second rack, and the second rack is correspondingly arranged with the first rack;

[0015] When the first gear rotates, the second gear rotates synchronously.

[0016] As an optional solution of the flip welding equipment for fastener processing described in the present invention, an elastic member is fixedly installed in the installation groove, the elastic member is configured as an annular rubber pad, the elastic member is located between the head clamp and the moving block, and the head clamp is in sliding contact with the elastic member.

[0017] As an optional solution of the flip welding device for fastener processing described in the present invention, wherein: a second special-shaped groove is opened at one end of the movable sleeve, and a second protrusion for changing the position of the movable sleeve is arranged on the inner wall of the rotating sleeve, and the second protrusion is slidably installed in the second special-shaped groove;

[0018] When the rotating sleeve rotates, the second protrusion abuts against the second special-shaped groove, and the movable sleeve moves toward the outside of the rotating sleeve.

[0019] As an optional solution of the flip welding equipment for fastener processing described in the present invention, a limiting plate is installed on the outside of the movable sleeve, a return spring is arranged on one side of the limiting plate, and one end of the return spring abuts against one end of the rotating sleeve.

[0020] The present invention also proposes a method for turning over welding equipment for fastener processing, including the following specific steps:

[0021] A1. Pre-welding treatment: remove impurities such as oil and rust from the surface of the fasteners, clean and polish the parts to be welded, and ensure that the welding area is flat and smooth;

[0022] A2. Docking process: Use the screw clamp and head clamp to position the fastener and the part to be welded. The head clamp automatically presses the bolt head and the screw before turning to ensure that there is no movement during the welding process;

[0023] A3. Welding process: The head fixture and the screw fixture rotate synchronously, driving the screw and the bolt head to rotate one circle, and at the same time, the welding gun is aimed at the connection between the screw and the bolt head for welding;

[0024] A4. Unloading process: After welding is completed, the fasteners are unloaded and the head fixture and screw fixture are restored to their initial positions.

[0025] The present invention has the following beneficial effects:

[0026] 1. The flip welding equipment and method for fastener processing, the moving plate and the moving block are connected by a connecting rod, so when the moving plate moves, it will drive the moving block to move forward, ensuring the synchronization of the movement of the screw clamp and the head clamp, and a first special-shaped groove is opened on the welding table, and a slider is installed at the bottom of the moving block. When the slider is in the first straight groove, the screw and the bolt head are loaded. When the slider slides in the arc groove, the moving block moves toward the moving plate at the same time, and the head clamp presses the bolt head and the screw, thereby realizing the self-alignment of the screw and the bolt head. Dynamic docking, when the slider slides in the second straight slide groove, the No. 1 gear is meshed with the No. 1 rack, and the head fixture rotates. Since the bolt head and the screw are pressed tightly, under the action of friction, the head fixture drives the screw fixture to rotate one circle, thereby completing the welding. In this process, not only the movement between the screw and the bolt head is synchronized, but also the rotation of the screw and the bolt head is synchronized, so that the contact position of the screw and the bolt head is not easy to produce relative sliding, thereby reducing the uneven distribution of welding thermal stress and reducing the occurrence of weld defects.

[0027] 2. The flip welding equipment and method for fastener processing, a rotating sleeve is rotatably installed on the movable plate, a screw clamp is arranged in the rotating sleeve, a No. 2 gear is installed at one end of the rotating sleeve, a No. 2 rack is installed on the welding table, the No. 2 gear is intermittently meshed with the No. 2 rack, and the No. 2 rack is arranged corresponding to the No. 1 rack. When the No. 1 gear rotates, the No. 2 gear rotates synchronously. At this time, the screw clamp actively rotates, thereby further improving the synchronization and reliability of flipping during welding, so that when the bolt head uses friction to drive the screw to rotate, the contact surface of the screw and the bolt head is prevented from sliding relative to each other, further avoiding the uneven distribution of welding thermal stress, and ensuring the welding quality of the fastener.

[0028] 3. The flip welding equipment and method for fastener processing, a movable sleeve is installed in the rotating sleeve, a screw clamp is clamped in the movable sleeve, a second special-shaped groove is opened at one end of the movable sleeve, a second protrusion is provided on the inner wall of the rotating sleeve, and the second protrusion is slidably installed in the second special-shaped groove. When the rotating sleeve rotates, the second protrusion contacts the second special-shaped groove to guide the movable sleeve to move to the outside of the rotating sleeve, and the screw is used to produce a small displacement in the direction of the bolt head to cooperate with the elastic member, so that the screw and the bolt head are more closely fitted, further preventing the contact surface of the screw and the bolt head from sliding relative to each other, and further avoiding the uneven distribution of welding thermal stress, thereby ensuring the welding quality of the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 Schematic diagram of the explosion structure of the present invention Figure 1 .

[0031] Figure 3 Schematic diagram of the explosion structure of the present invention Figure 2 .

[0032] Figure 4 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of the screw clamp of the present invention.

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of the head clamp of the present invention.

[0035] Figure 7 It is a schematic diagram of the top view of the structure before welding of the present invention.

[0036] Figure 8 It is a schematic diagram of the top view of the structure during welding of the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the welding station of the present invention.

[0038] Fig.10 It is an enlarged schematic diagram of the structure at B of the present invention.

[0039] In the figure: 100, bracket; 200, electric slide; 201, three-axis movable slide; 300, movable plate; 301, welding gun; 302, connecting sleeve; 303, second gear; 400, movable block; 401, first gear; 402, slider; 403, mounting groove; 404, connecting rod; 405, connecting spring; 500, welding table; 501, first special-shaped groove; 502, baffle; 503 , rack No. 1; 504, first straight slide; 505, arc-shaped slide; 506, second straight slide; 507, rack No. 2; 601, rotating sleeve; 602, moving sleeve; 603, slot; 604, limit plate; 605, return spring; 606, second special-shaped slot; 607, second protrusion; 701, head clamp; 702, elastic member; 703, screw clamp; 704, first protrusion. DETAILED DESCRIPTION

[0040] 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.

[0041] Embodiment 1: This embodiment is intended to promote the solution of the problem that the existing fastener welding flip device will inevitably cause the screw and the bolt head to rotate asynchronously during rotation, resulting in relative sliding of the contact part between the screw and the bolt head, thereby causing uneven distribution of welding thermal stress and welding defects. Please refer to Figure 1-10 A flip welding device for fastener processing includes a bracket 100, an electric slide 200 is installed on the bracket 100, a three-axis movable slide 201 is installed on the electric slide 200, a welding gun 301 is installed on the three-axis movable slide 201, the electric slide 200 is configured as an electric screw slide, a movable plate 300 is installed on the sliding block of the electric slide 200, a screw clamp 703 is rotatably installed on the movable plate 300, a head clamp 701 is provided on the side of the screw clamp 703, the head clamp 701 is correspondingly arranged with the screw clamp 703, and the screw clamp 703 and the head clamp 701 press the screw and the bolt head.

[0042] Among them, the three-axis mobile slide 201 is a common industrial automation equipment in this field. It can realize the translational movement of an object in the three directions of X, Y, and Z, thereby completing the precise adjustment and positioning of the three-dimensional space. The three-axis mobile slide 201 is usually composed of a base, a guide rail, a slider, a transmission device and a control system. The specific structure and principle of the three-axis mobile slide 201 are well known to technical personnel in this field and will not be elaborated here.

[0043] Also, please refer to Figure 1 A welding table 500 is installed on the bottom side of the bracket 100, and a connecting rod 404 is arranged below the head fixture 701. One end of the connecting rod 404 is connected to the movable plate 300. When the movable plate 300 moves, under the action of the connecting rod 404, the head fixture 701 will move synchronously with the screw fixture 703. A No. 1 gear 401 is installed on one side of the head fixture 701, and a No. 1 rack 503 is arranged on the welding table 500. The No. 1 gear 401 is intermittently meshed with the No. 1 rack 503. When the No. 1 gear 401 is meshed with the No. 1 rack 503, the head fixture 701 drives the screw fixture 703 to rotate one circle. When the head fixture 701 and the screw fixture 703 rotate, the welding gun 301 welds the connection between the screw and the bolt head.

[0044] Also, please refer to Figure 4 , Figure 5 , Figure 6A moving block 400 is slidably installed on the welding table 500, and a mounting groove 403 is opened on the moving block 400. The head clamp 701 is rotatably installed in the mounting groove 403. A rotating sleeve 601 is rotatably installed on the moving plate 300, and a moving sleeve 602 is installed in the rotating sleeve 601. A pair of slots 603 are arranged on the inner wall of the moving sleeve 602, and a pair of first protrusions 704 are arranged on the outer wall of the screw clamp 703. The first protrusion 704 is slidably engaged with the slot 603. During implementation, the screw clamp 703 and the head clamp 701 can be disassembled, so that different types of screw clamps 703 and head clamps 701 can be replaced to adapt to different types of fasteners.

[0045] In addition, a pair of connecting sleeves 302 are installed on the movable plate 300, and a connecting spring 405 is arranged inside the connecting sleeve 302. The connecting rod 404 is slidably installed in the connecting sleeve 302, one end of the connecting rod 404 is in contact with the connecting spring 405, and the other end of the connecting rod 404 is installed on the movable block 400. The design of the connecting spring 405 enables the movable block 400 to move toward the movable plate 300 while moving.

[0046] Also, please refer to Fig. 9 A first special-shaped groove 501 is provided on the welding table 500, and the first special-shaped groove 501 includes a first straight groove 504, an arc groove 505, and a second straight groove 506. The first straight groove 504, the arc groove 505, and the second straight groove 506 are arranged in sequence, and the second straight groove 506 is arranged corresponding to the first rack 503. A slider 402 is installed at the bottom of the moving block 400, and the slider 402 is slidably installed in the first special-shaped groove 501. When the slider 402 is in the first straight groove 504, the screw and the bolt head are installed. At this time, the screw rod and the bolt head are separated, and when the slider 402 slides in the arc groove 505, the arc groove 505 has a limiting effect on the slider 402, and the moving block 400 moves toward the moving plate 300 at the same time, and the head clamp 701 presses the bolt head and the screw rod, and when the slider 402 slides in the second straight groove 506, the No. 1 gear 401 is meshed with the No. 1 rack 503, and the head clamp 701 drives the screw clamp 703 to rotate one circle, and at the same time, the welding gun 301 welds the connection between the screw rod and the bolt head.

[0047] In addition, a baffle 502 for shielding welding slag is installed on the welding table 500 . The baffle 502 is disposed adjacent to the first special-shaped groove 501 , and the baffle 502 is in sliding contact with the moving block 400 .

[0048] This embodiment also provides a method for turning over welding equipment for fastener processing, including the following specific steps:

[0049] A1. Pre-welding treatment: remove impurities such as oil and rust from the surface of the fasteners, clean and polish the parts to be welded, and ensure that the welding area is flat and smooth;

[0050] A2. Docking process: Use the screw fixture 703 and the head fixture 701 to position the fastener and the part to be welded. The head fixture 701 automatically presses the bolt head and the screw before turning to ensure that there is no movement during the welding process;

[0051] A3. Welding process: The head fixture 701 and the screw fixture 703 rotate synchronously, driving the screw and the bolt head to rotate one circle, and at the same time, the welding gun 301 is aimed at the connection between the screw and the bolt head for welding;

[0052] A4. Cutting process: After welding is completed, the fastener is cut, and the head fixture 701 and the screw fixture 703 return to their initial positions.

[0053] Loading and unloading can be done manually or with the help of automated mechanical equipment.

[0054] In this embodiment: a connecting rod 404 is installed on the moving plate 300, and the other end of the connecting rod 404 is installed on the moving block 400, so when the moving plate 300 moves, it will drive the moving block 400 to move forward, thereby ensuring the synchronization of the movement of the screw clamp 703 and the head clamp 701, and a first special-shaped groove 501 is opened on the welding table 500, and a slider 402 is installed at the bottom of the moving block 400, and the slider 402 is slidably installed in the first special-shaped groove 501. When the slider 402 is in the first straight groove 504, the screw and the bolt head are separated, and when the slider 402 slides in the arc groove 505, the moving block 400 is simultaneously Moving toward the movable plate 300, the head clamp 701 presses the bolt head and the screw rod, thereby realizing automatic docking of the screw rod and the bolt head. When the slider 402 slides in the second straight slide groove 506, since the bolt head and the screw rod are pressed, under the action of friction, the head clamp 701 drives the screw clamp 703 to rotate one circle, thereby completing the welding. In this process, not only the movement between the screw rod and the bolt head is synchronized, but also the rotation of the screw rod and the bolt head is synchronized, so that the contact position of the screw rod and the bolt head is not easy to produce relative sliding, thereby reducing the uneven distribution of welding thermal stress and reducing the occurrence of weld defects.

[0055] Embodiment 2: This embodiment is intended to promote the solution to further improve the stability of the screw rod and the bolt head when they rotate synchronously. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-10A No. 2 gear 303 is installed at one end of the rotating sleeve 601, and a No. 2 rack 507 is installed on the welding table 500. The No. 2 gear 303 is intermittently meshed with the No. 2 rack 507, and the No. 2 rack 507 is arranged parallel to the No. 1 rack 503. When the No. 1 gear 401 rotates, the No. 2 gear 303 rotates synchronously.

[0056] It should be noted that the head clamp 701 presses the bolt head and the screw, while the friction between the screw and the bolt head is limited, and a certain torque is required for the screw clamp 703 to rotate. Therefore, the head clamp 701 only drives the screw clamp 703 to rotate through the friction between the screw and the bolt head, which may cause relative sliding between the screw and the bolt head. Therefore, the second gear 303 is set to help the screw to rotate actively.

[0057] In this embodiment, a rotating sleeve 601 is rotatably installed on the movable plate 300, and a screw clamp 703 is arranged in the rotating sleeve 601. A second gear 303 is installed at one end of the rotating sleeve 601, and a second rack 507 is installed on the welding table 500. The second gear 303 is intermittently meshed with the second rack 507, and the second rack 507 is arranged corresponding to the first rack 503. When the first gear 401 rotates, the second gear 303 rotates synchronously to ensure that the screw clamp 703 and the head clamp 701 rotate synchronously, so that when the bolt head uses friction to drive the screw to rotate, the contact surface of the screw and the bolt head is prevented from sliding relative to each other, further avoiding the uneven distribution of welding thermal stress, and ensuring the welding quality of the fastener.

[0058] Embodiment 3: This embodiment is intended to further solve the problem of preventing the screw rod and the bolt head from sliding relative to each other. This embodiment is an improvement made on the basis of Embodiment 2. For details, please refer to Figure 1-10 A second special-shaped groove 606 is provided at one end of the movable sleeve 602, and a second protrusion 607 is provided on the inner wall of the rotating sleeve 601. The second protrusion 607 is slidably installed in the second special-shaped groove 606. When the rotating sleeve 601 rotates, the second protrusion 607 conflicts with the second special-shaped groove 606, and the movable sleeve 602 moves toward the outside of the rotating sleeve 601. It should be noted that in order to be able to weld the connection between the stud and the bolt head, the welding gun 301 must be moved synchronously with the stud so that the welding end of the welding gun 301 is aligned with the connection between the stud and the bolt head.

[0059] In addition, a limiting plate 604 is installed on the outside of the movable sleeve 602, and a return spring 605 is provided on one side of the limiting plate 604. One end of the return spring 605 abuts against one end of the rotating sleeve 601. When welding is completed, under the action of the return spring 605, the movable sleeve 602 moves toward the inside of the rotating sleeve 601 and returns to its initial position.

[0060] An elastic member 702 is fixedly installed in the mounting groove 403, and the elastic member 702 is configured as an annular rubber pad. The head clamp 701 is in sliding contact with the elastic member 702. It should be noted that in order to achieve the squeezing of the screw and the bolt head together, the displacement of the slider 402 must be accurately controlled during implementation. If the displacement of the slider 402 toward the moving plate 300 is insufficient, the screw and the bolt head cannot be squeezed together. If the displacement of the slider 402 toward the moving plate 300 is too large, since the screw and the bolt head themselves are rigid, when the two are squeezed against each other, the screw and the bolt head themselves hardly deform, so the slider 402 will get stuck when sliding. Therefore, the elastic member 702 is configured to store the displacement of the bolt head, thereby ensuring the normal function of the device.

[0061] In this embodiment, a movable sleeve 602 is installed in the rotating sleeve 601, and the screw clamp 703 is engaged in the movable sleeve 602. A second special-shaped groove 606 is opened at one end of the movable sleeve 602, and a second protrusion 607 is provided on the inner wall of the rotating sleeve 601. The second protrusion 607 is slidably installed in the second special-shaped groove 606. When the rotating sleeve 601 rotates, the second protrusion 607 conflicts with the second special-shaped groove 606, and the movable sleeve 602 moves toward the outside of the rotating sleeve 601. At this time, the screw produces a slight displacement toward the bolt head, so that the screw and the bolt head are more closely fitted, preventing the contact surface of the screw and the bolt head from sliding relative to each other. In addition, the welding gun 301 and the stud are moved synchronously, so that the welding end of the welding gun 301 is aligned with the connection between the stud and the bolt head, further avoiding the uneven distribution of welding thermal stress and ensuring the welding quality of the fastener.

[0062] 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.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A flip welding device for fastener processing, comprising a bracket (100), an electric slide (200) is mounted on the bracket (100), a three-axis movable slide (201) is arranged on the electric slide (200), and a welding gun (301) is mounted on the three-axis movable slide (201), characterized in that: A movable plate (300) is installed on the slider of the electric slide (200), a screw clamp (703) is rotatably installed on the movable plate (300), a head clamp (701) is arranged on the side of the screw clamp (703), the head clamp (701) is arranged corresponding to the screw clamp (703), and the screw clamp (703) and the head clamp (701) press the screw and the bolt head; A welding platform (500) is installed on the bottom side of the bracket (100), a connecting rod (404) is arranged below the head fixture (701), one end of the connecting rod (404) is connected to the movable plate (300), a No. 1 gear (401) is installed on the side of the head fixture (701) away from the screw fixture (703), and a No. 1 rack (503) for meshing with the No. 1 gear (401) is arranged on the welding platform (500), and when the No. 1 gear (401) meshes with the No. 1 rack (503), the head fixture (701) is flipped.

2. The flip welding equipment for fastener processing according to claim 1, characterized in that: A pair of connecting sleeves (302) are installed on the moving plate (300), and a connecting spring (405) is arranged inside the connecting sleeve (302). The connecting rod (404) is slidably installed in the connecting sleeve (302), one end of the connecting rod (404) is in contact with the connecting spring (405), and the other end of the connecting rod (404) is installed on the moving block (400).

3. The flip welding equipment for fastener processing according to claim 1, characterized in that: A moving block (400) is slidably mounted on the welding table (500), and a mounting groove (403) is opened on the moving block (400). The head clamp (701) is rotatably mounted in the mounting groove (403). A rotating sleeve (601) is rotatably mounted on the moving plate (300), and a moving sleeve (602) is mounted in the rotating sleeve (601). A pair of slots (603) are arranged on the inner wall of the moving sleeve (602), and a pair of first protrusions (704) are arranged on the outer wall of the screw clamp (703), and the first protrusions (704) are slidably engaged with the slots (603).

4. The flip welding equipment for fastener processing according to claim 3 is characterized in that: The welding table (500) is provided with a first special-shaped groove (501), the first special-shaped groove (501) comprises a first straight groove (504), an arc-shaped groove (505), and a second straight groove (506), the first straight groove (504), the arc-shaped groove (505) and the second straight groove (506) are arranged in sequence, and the second straight groove (506) is parallel to the first rack (503); A sliding block (402) is installed at the bottom of the moving block (400), and the sliding block (402) is slidably installed in the first special-shaped groove (501); When the sliding block (402) slides in the arc-shaped sliding groove (505), the moving block (400) simultaneously moves toward the moving plate (300), and the bolt head and the screw rod are butted against each other; When the sliding block (402) slides in the second straight sliding groove (506), the head clamp (701) drives the screw clamp (703) to rotate one circle.

5. The flip welding equipment for fastener processing according to claim 4, characterized in that: A baffle (502) for shielding welding slag is installed on the welding table (500); the baffle (502) is arranged adjacent to the first special-shaped groove (501), and the baffle (502) is in sliding contact with the moving block (400).

6. The flip welding equipment for fastener processing according to claim 1, characterized in that: A second gear (303) is rotatably mounted on one side of the movable plate (300), the second gear (303) is coaxially connected to the rotating sleeve (601), a second rack (507) is mounted on the welding table (500), the second gear (303) is intermittently meshed with the second rack (507), and the second rack (507) is arranged correspondingly to the first rack (503); When the first gear (401) rotates, the second gear (303) rotates synchronously.

7. The flip welding equipment for fastener processing according to claim 3, characterized in that: An elastic member (702) is fixedly installed in the installation groove (403); the elastic member (702) is configured as an annular rubber pad; the elastic member (702) is located between the head clamp (701) and the moving block (400); the head clamp (701) is in sliding contact with the elastic member (702).

8. The flip welding equipment for fastener processing according to claim 3, characterized in that: A second special-shaped groove (606) is formed at one end of the movable sleeve (602), and a second protrusion (607) for changing the position of the movable sleeve (602) is provided on the inner wall of the rotating sleeve (601), and the second protrusion (607) is slidably installed in the second special-shaped groove (606); When the rotating sleeve (601) rotates, the second protrusion (607) contacts the second special-shaped groove (606), and the movable sleeve (602) moves toward the outside of the rotating sleeve (601).

9. The flip welding equipment for fastener processing according to claim 3, characterized in that: A limiting plate (604) is installed outside the movable sleeve (602), and a return spring (605) is arranged on one side of the limiting plate (604). One end of the return spring (605) contacts one end of the rotating sleeve (601).

10. The method of flip welding equipment for fastener processing according to claim 1, characterized in that: The specific steps include: A1. Pre-welding treatment: remove impurities such as oil and rust on the surface of fasteners, clean and polish the parts to be welded, and ensure that the welding area is flat and smooth; A2. Docking process: Use the screw fixture (703) and the head fixture (701) to position the fastener and the part to be welded. The head fixture (701) automatically presses the bolt head and the screw before turning to ensure that there is no movement during the welding process; A3. Welding process: the head fixture (701) and the screw fixture (703) rotate synchronously, driving the screw and the bolt head to rotate one circle, and at the same time, the welding gun (301) is aimed at the connection between the screw and the bolt head to perform welding; A4. Cutting process: After welding is completed, the fastener is cut, and the head fixture (701) and the screw fixture (703) are restored to their initial positions.

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