Spot welding machine with cooling function

Abstract

The invention discloses a spot welding machine with a cooling function, and relates to the technical field of welding, the spot welding machine comprises a spot welding machine main body of a rectangular frame structure, and the top end of the spot welding machine main body is fixedly connected with a plurality of welding cylinders which are used for controlling an electrode to move up and down and completing pressing and loosening operation in the spot welding process; the inner wall of the spot welding machine body is fixedly connected with a machining table used for providing a stable supporting face for a machined workpiece and optimizing the layout and positioning mode of the workpiece on the machining table, and the bottom end of the welding air cylinder is fixedly connected with a welding head used for directly providing current and pressure and making contact with and melting metal. Arc friction track mechanisms are arranged on the two sides of the welding air cylinder, an arc strike welding mechanism is arranged in the center of the upper end of the machining table, splashing shielding mechanisms are arranged on the two sides of the upper end of the machining table, and an outer friction disc and an inner friction disc are matched with each other, so that the arc friction track mechanisms move along an arc track; and heat distribution of a welding area can be more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a spot welding machine with a cooling function. Background Art

[0002] Spot welding machine is a kind of equipment commonly used in the metal processing industry, mainly used to connect metal materials. As the manufacturing industry's requirements for welding quality and efficiency continue to increase, the high temperature and welding time generated by traditional spot welding machines during the welding process often cause deformation or damage to the material. In order to solve this problem, spot welding machines with cooling function came into being. This type of spot welding machine integrates cooling technology, which can quickly reduce the temperature of the welding area after welding is completed, thereby effectively reducing the heat-affected zone and reducing the risk of thermal deformation of the material. At the same time, the cooling function can also improve the strength and durability of the welded joint and improve the overall welding quality. In addition, the use of advanced temperature control system enables the equipment to automatically adjust the cooling parameters according to different materials and welding conditions, thereby improving the flexibility and reliability of operation; There are still the following defects in specific use: 1. During welding, due to local heating, the metal will expand and contract when cooling, causing the workpiece to deform. This deformation may affect the fit and assembly accuracy of the components; temperature changes during welding may cause changes in the microstructure of the material, thereby affecting its mechanical properties and reducing overall strength and toughness; residual stress will concentrate in the weld joint or heat-affected zone, which may cause cracking, especially in high-strength or brittle materials.

[0003] 2. Slag inclusions and lack of fusion will cause defects inside the weld, resulting in reduced strength of the weld joint and possibly being unable to withstand the design load; these defects will form stress concentration points under cyclic loads, thereby reducing the fatigue life of the welded structure and increasing the risk of failure; slag inclusions in the weld may cause local electrochemical corrosion, making the weld joint more susceptible to erosion in a corrosive environment; lack of fusion may form microcracks during the welding process, which may develop into more serious cracks after long-term use, leading to structural failure.

[0004] In view of this, the present invention proposes a spot welding machine with a cooling function to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a spot welding machine with a cooling function to solve the technical problems raised in the above background technology.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a spot welding machine with a cooling function, including a spot welding machine body with a rectangular frame structure, a plurality of welding cylinders for controlling the up and down movement of electrodes and completing the pressing and loosening operations during spot welding are fixedly connected to the top of the spot welding machine body, a processing table for providing a stable support surface for workpieces and optimizing the layout and positioning of workpieces on the processing table is fixedly connected to the inner wall of the spot welding machine body, a welding head for directly providing current and pressure and contacting and melting metal is fixedly connected to the bottom end of the welding cylinder, and the welding head is in a curved spherical shape, arc friction track mechanisms are arranged on both sides of the welding cylinder, an arc strike welding mechanism is arranged at the center of the upper end of the processing table, and splash shielding mechanisms are arranged on both sides of the upper end of the processing table; The arc friction track mechanism is used to move along the arc track to make the heat distribution in the welding area more uniform; The arc welding mechanism is used to remove oxides, oil stains and other impurities on the welding surface; The spatter shielding mechanism is used to effectively block sparks, metal particles and other spatters generated during welding.

[0007] The camshafts are connected to the respective bottom ends of the two guide wheels, and the two guide wheels are connected to the respective bottom ends of the two guide wheels, and the two guide wheels are connected to the respective bottom ends of the two guide wheels, respectively.

[0008] Furthermore, a driving shaft is fixedly connected to the axis of the outer wall of the double-headed rod, and the ends of the two oblique rods away from the inner rod are rotatably connected to the outer wall of the end of the oblique rod close to the long rod, and the outer wall of the outer friction plate is covered with sandpaper, and the end of one of the long rods close to the outer friction plate is rotatably connected to the inside of the buckle, and the outer wall of the obstacle block is provided with a concave and convex surface.

[0009] Furthermore, square through grooves are provided on both sides of the inner long plate, and the bottom ends of the two inner rods close to the oblique rods are respectively clamped in the square through grooves provided on both sides of the inner long plate, and the outer walls of the multiple inner friction plates are covered with sandpaper, and the positions of the multiple inner friction plates are uniformly distributed horizontally in one direction, and the multiple inner friction plates are distributed in a triangular relationship with the outer friction plates.

[0010] Furthermore, the arc welding mechanism includes an inclined bottom plate fixedly connected to the inner walls on both sides of the processing table, the surface of the inclined bottom plate on the side away from the processing table is fixedly connected to an outer support column, and two outer support columns are symmetrically arranged around the central axis of the inclined bottom plate, and the two outer support columns are fixedly connected and rotatably connected to a rotating ring block on the outer wall at the bottom end close to the inclined bottom plate, and a knock hammer is fixedly connected to the outer wall of the rotating ring block on the side away from the outer support column, and an inner rod is fixedly connected to the outer wall of one end of the rotating ring block away from the knock hammer, and a turntable is rotatably connected to the top outer wall of the side of the outer support column away from the rotating ring block, and a rotating rod is rotatably connected to the outer wall of the turntable on the side away from the outer support column, and a fixed column is fixedly connected to the outer wall of one end of the rotating rod away from the turntable.

[0011] Furthermore, an obstacle ball is fixedly connected to the outer wall of the striking hammer, a convex portion is provided on the outer wall of the turntable, and the initial position of the built-in rod abuts against the convex portion provided on the outer wall of the turntable.

[0012] Furthermore, the outer walls of the fixing columns are all provided with protruding columns, and the outer walls of the rotating rods are in contact with the concave and convex surfaces provided on the outer walls of the obstacle blocks.

[0013] Furthermore, the splash shielding mechanism includes a U-shaped block fixedly connected to the upper surface of the processing table, the inner wall of the U-shaped block at one end away from the processing table is penetrated and fixedly connected with a fixed shaft, the outer walls of both ends of the fixed shaft away from the U-shaped block are rotatably connected with cranks, the inner walls of the two cranks at one end away from the fixed shaft are rotatably connected with connecting rods, the two connecting rods at one end away from the cranks are fixedly connected with arc blocks, the outer wall of the fixed shaft is rotatably connected with a head rotating block, the top outer walls of the two arc blocks on one side close to the U-shaped block are fixedly connected with moving blocks, wedge blocks are arranged under the two arc blocks, the bottom ends of the two wedge blocks are fixedly connected with spring bodies, and the outer walls of the two arc blocks on one side away from the moving block are fixedly connected with shielding plates.

[0014] Furthermore, the initial position of the head rotating block abuts against the raised column arranged on the outer wall of the fixed column, and the outer walls on both sides of the U-shaped block are penetrated by raised square through grooves, and the two movable blocks are respectively slidably connected in the raised square through grooves penetrated by the outer walls on both sides of the U-shaped block, and the spring body is in a compressed state.

[0015] Furthermore, the two wedge blocks are slidably connected to the inner wall of the U-shaped block, the outer walls of the two wedge blocks are provided with inclined surfaces, the two arc blocks are respectively slidably connected to the inclined surfaces provided on the outer walls of the wedge blocks, the ends of the two spring bodies away from the wedge blocks are fixedly connected to the bottom end surface of the U-shaped block, the outer walls of the baffle plates are penetrated with circular through holes, and the initial position of the baffle plates is on the same vertical plane as the processing table.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention utilizes the outer friction disk and the inner friction disk to cooperate with each other, and the arc friction track mechanism moves along the arc track, which can make the heat distribution in the welding area more uniform. The uniform heat distribution also helps to improve the strength and toughness of the weld, making the weld joint more firm and reliable; the arc friction track mechanism moves along the arc track, which can speed up the welding speed and improve production efficiency. This is because the friction of the arc track can more effectively utilize friction heat for welding, thereby reducing the time required for welding; the arc friction track mechanism moves along the arc track for welding, which can reduce the contact area between the electrode and the workpiece, thereby reducing the electrode loss rate. This helps to extend the service life of the electrode and reduce the frequency and cost of replacing the electrode.

[0017] (2) The present invention utilizes a striking hammer and a fixed column to cooperate with each other, and the striking action helps to remove oxides, oil stains and other impurities on the welding surface; the vibration generated by the striking helps to better mix the metals in the molten pool and promotes the formation of a molten core, thereby improving the strength and sealing of the weld joint; the striking method can quickly start an arc without waiting for a long time for the arc to stabilize, thereby improving welding efficiency; the striking action can reduce the spatter generated during the welding process and reduce pollution to the operating environment and surrounding equipment; striking the welding part may help to break up the iron sheet, discharge pores and metal inclusions, thereby improving the welding quality and material performance; by striking the welding part, some residual stress can be eliminated and the possibility of material deformation and cracking can be reduced; striking may help to improve the tightness of the welding part, increase the strength and hardness of the welding part, thereby improving the welding effect and service life.

[0018] (3) The present invention utilizes the shielding plate and the head rotating block to cooperate with each other, and the splash shielding mechanism can effectively block the sparks, metal particles and other splashes generated during the welding process; the splash shielding mechanism can effectively block strong light and sparks, thereby reducing the risk of workers' eyes and skin injuries; the splash shielding mechanism can reduce the direct exposure of workers to harmful gases to a certain extent, thereby protecting the health of workers' respiratory system; the splash shielding mechanism can block the splashes generated during the welding process and prevent them from falling around the welding area, thereby reducing the interference of splashes on the welding quality; the use of the splash shielding mechanism can reduce the time for cleaning the work area after welding, because the splashes are effectively blocked outside the splash shielding mechanism; the splashes may cause damage to the welding equipment, and the splash shielding mechanism can block these splashes, thereby extending the service life of the welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the partial three-dimensional structure of the arc friction track mechanism of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the position relationship between the double-headed rod and the inner rod of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the positional relationship between the inner friction disc and the outer friction disc of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the position relationship between the turntable and the built-in rod of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the position relationship between the obstacle block and the rotating rod of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the positional relationship between the fixed column and the head rotating block of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the position relationship between the arc block and the wedge block of the present invention; The numbers in the figure are: 1. spot welding machine body; 11. welding cylinder; 12. processing table; 13. welding head; 2. arc friction track mechanism; 21. docking plate; 22. double-headed rod; 23. inner rod; 24. inclined rod; 25. outer rod; 26. long rod; 27. outer friction disk; 28. buckle; 29. ​​inner long plate; 210. inner friction disk; 211. obstacle block; 3. arc strike welding dynamic mechanism; 31. inclined bottom plate; 32. outer support column; 33. rotating ring block; 34. built-in rod; 35. turntable; 36. rotating rod; 37. fixed column; 38. knock hammer; 4. splash shielding mechanism; 41. U-shaped block; 42. fixed shaft; 43. crank; 44. connecting rod; 45. head rotating block; 4501. arc block; 46. moving block; 47. wedge block; 48. spring body; 49. shielding plate. DETAILED DESCRIPTION

[0020] 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; Embodiments of the present invention A spot welding machine with cooling function, reference Figure 1 As shown, it includes a spot welding machine body 1 of a rectangular frame structure, a plurality of welding cylinders 11 for controlling the up and down movement of electrodes and completing the pressing and loosening operations during spot welding are fixedly connected to the top of the spot welding machine body 1, a processing table 12 for providing a stable support surface for workpieces and optimizing the layout and positioning of workpieces on the processing table 12 is fixedly connected to the inner wall of the spot welding machine body 1, a welding head 13 for directly providing current and pressure and contacting and melting metal is fixedly connected to the bottom end of the welding cylinder 11, and the welding head 13 is in a curved spherical shape; In view of the above-mentioned spot welding machine with cooling function, it can be specifically implemented as follows: Arc friction track mechanisms 2 are arranged on both sides of the welding cylinder 11, an arc strike welding mechanism 3 is arranged at the center of the upper end of the processing table 12, and splash shielding mechanisms 4 are arranged on both sides of the upper end of the processing table 12; refer to Figure 2 As shown, the arc friction track mechanism 2 is used to move along the arc track to make the heat distribution in the welding area more uniform; refer to Figure 3 As shown, the arc friction track mechanism 2 includes a docking plate 21 fixedly connected to the outer wall of the bottom end of the welding cylinder 11, and two docking plates 21 are symmetrically arranged with the central axis of the welding cylinder 11. The tops of the two docking plates 21 on the side away from the welding cylinder 11 are both rotatably connected with double-headed rods 22, and the two double-headed rods 22 are both rotatably connected with inner rods 23 at the axis of the outer wall of the side away from the docking plate 21. The outer walls of one end of the two inner rods 23 away from the double-headed rods 22 are both rotatably connected with oblique rods 24, and the outer walls of one end of the two double-headed rods 22 away from the inner rods 23 are both rotatably connected with The outer rod 25, the outer wall of one end of the two outer rods 25 away from the double-headed rod 22 is rotatably connected to the long rod 26, the outer wall of one end of the two long rods 26 away from the outer rod 25 is fixedly connected to the buckle 28, the inner wall of the buckle 28 away from the long rod 26 is fixedly connected to the outer friction disk 27, the outer wall of the bottom end of the two inner rods 23 close to the inclined rod 24 is fixedly connected to the inner long plate 29, the outer wall of the inner long plate 29 close to the outer friction disk 27 is fixedly connected to a plurality of inner friction disks 210, and the outer walls of both ends of the inner long plate 29 are fixedly connected to the obstacle blocks 211; refer to Figure 3As shown, a driving shaft is fixedly connected to the axis center of the outer wall of the double-headed rod 22, and the ends of the two inclined rods 24 away from the inner rod 23 are both rotatably connected to the outer wall of the end of the inclined rod 24 close to the long rod 26, and the outer wall of the outer friction disk 27 is covered with sandpaper, and the end of one of the long rods 26 close to the outer friction disk 27 is rotatably connected to the inside of the buckle 28, and the outer wall of the obstacle block 211 is provided with a concave and convex surface; refer to Figure 4 As shown, square through grooves are provided on both sides of the inner long plate 29, and the bottom ends of the two inner rods 23 on one side close to the oblique rod 24 are respectively clamped in the square through grooves provided on both sides of the inner long plate 29, and the outer walls of the multiple inner friction discs 210 are covered with sandpaper, and the positions of the multiple inner friction discs 210 are uniformly distributed horizontally in one direction, and the multiple inner friction discs 210 and the outer friction discs 27 are distributed in a triangular relationship; Summary 1: Compared with the risks of workpiece welding deformation and residual stress in the prior art, the arc friction track mechanism 2 of the present invention moves along the arc track, which can make the heat distribution in the welding area more uniform. The uniform heat distribution also helps to improve the strength and toughness of the weld, making the welded joint more firm and reliable; the arc friction track mechanism 2 moves along the arc track, which can speed up the welding speed and improve production efficiency. This is because the friction of the arc track can more effectively utilize friction heat for welding, thereby reducing the time required for welding; the arc friction track mechanism 2 moves along the arc track for welding, which can reduce the contact area between the electrode and the workpiece, thereby reducing the electrode loss rate. This helps to extend the service life of the electrode and reduce the frequency and cost of replacing the electrode.

[0021] refer to Figure 5 As shown, the arc welding mechanism 3 is used to remove oxides, oil stains and other impurities on the welding surface; refer to Figure 5 As shown, the arc welding mechanism 3 includes an inclined bottom plate 31 fixedly connected to the inner walls of both sides of the processing table 12, a side surface of the inclined bottom plate 31 away from the processing table 12 is fixedly connected to an outer support column 32, two outer support columns 32 are symmetrically arranged around the central axis of the inclined bottom plate 31, the two outer support columns 32 are fixedly connected and rotatably connected to a rotating ring block 33 on the outer wall of the bottom end of the side close to the inclined bottom plate 31, a side outer wall of the rotating ring block 33 away from the outer support column 32 is fixedly connected to a knock hammer 38, an end outer wall of the rotating ring block 33 away from the knock hammer 38 is fixedly connected to an internal rod 34, a top outer wall of the side of the outer support column 32 away from the rotating ring block 33 is rotatably connected to a turntable 35, a side outer wall of the turntable 35 away from the outer support column 32 is rotatably connected to a rotating rod 36, and an end outer wall of the rotating rod 36 away from the turntable 35 is fixedly connected to a fixed column 37 refer to Figure 5 As shown, the outer wall of the striking hammer 38 is fixedly connected with an obstacle ball, the outer wall of the rotating disk 35 is provided with a convex portion, and the initial position of the built-in rod 34 abuts against the convex portion provided on the outer wall of the rotating disk 35; refer to Figure 6 As shown, the outer wall of the fixed column 37 is provided with a protruding column, and the outer wall of the rotating rod 36 abuts against the concave and convex surface provided on the outer wall of the obstacle block 211; Summary 2: Compared with the defects such as slag inclusion and unfused welds that may occur during the welding process of the prior art, the tapping action of the present invention helps to remove impurities such as oxides and oil stains on the welding surface; the vibration generated by the tapping helps to better mix the metals in the molten pool and promotes the formation of molten cores, thereby improving the strength and sealing of the welded joint; the tapping method can quickly start the arc without waiting for a long time for the arc to stabilize, thereby improving the welding efficiency; the tapping action can reduce the spatter generated during the welding process and reduce the pollution to the operating environment and surrounding equipment; tapping the welding part may help to break up the iron sheet, discharge pores and metal inclusions, thereby improving the welding quality and material performance; by tapping the welding part, some residual stress can be eliminated and the possibility of deformation and cracking of the material can be reduced; tapping may help to improve the tightness of the welding part, increase the strength and hardness of the welding part, thereby improving the welding effect and service life; refer to Figure 7 As shown, the splash shielding mechanism 4 is used to effectively block sparks, metal particles and other splashes generated during welding; refer to Figure 7 As shown, the splash shielding mechanism 4 includes a U-shaped block 41 fixedly connected to the upper surface of the processing table 12, the inner wall of the end of the U-shaped block 41 away from the processing table 12 is penetrated and fixedly connected with a fixed shaft 42, the outer walls of the two ends of the fixed shaft 42 away from the U-shaped block 41 are rotatably connected with cranks 43, the inner walls of the ends of the two cranks 43 away from the fixed shaft 42 are rotatably connected with connecting rods 44, the ends of the two connecting rods 44 away from the crank 43 are fixedly connected with arc blocks 4501, the outer wall of the fixed shaft 42 is rotatably connected with a leading rotating block 45, the top outer walls of the two arc blocks 4501 on one side close to the U-shaped block 41 are fixedly connected with a moving block 46, wedge blocks 47 are arranged below the two arc blocks 4501, the bottom ends of the two wedge blocks 47 are fixedly connected with a spring body 48, and the outer walls of the two arc blocks 4501 on one side away from the moving block 46 are fixedly connected with a shielding plate 49 refer to Figure 7 As shown, the initial position of the head rotating block 45 abuts against the raised column arranged on the outer wall of the fixed column 37, and the outer walls on both sides of the U-shaped block 41 are penetrated with raised square through grooves, and the two moving blocks 46 are respectively slidably connected to the raised square through grooves on the outer walls on both sides of the U-shaped block 41, and the spring body 48 is in a compressed state; refer to Figure 8As shown, two wedge blocks 47 are slidably connected to the inner wall of the U-shaped block 41, and the outer walls of the two wedge blocks 47 are provided with inclined surfaces. Two arc blocks 4501 are respectively slidably connected to the inclined surfaces provided on the outer walls of the wedge blocks 47, and one end of the two spring bodies 48 away from the wedge blocks 47 is fixedly connected to the bottom surface of the U-shaped block 41. The outer wall of the shielding plate 49 is penetrated with circular through holes, and the initial position of the shielding plate 49 is on the same vertical plane as the processing table 12. Summary 3: Compared with the prior art, spatters often have higher temperatures and speeds, which may be harmful to the eyes of workers. The spatter shielding mechanism 4 of the present invention can effectively block sparks, metal particles and other spatters generated during welding; the spatter shielding mechanism 4 can effectively block strong light and sparks, thereby reducing the risk of eye and skin injuries to workers; the spatter shielding mechanism 4 can reduce the direct exposure of workers to harmful gases to a certain extent, thereby protecting the health of the workers' respiratory system; the spatter shielding mechanism 4 can block the spatters generated during welding and prevent them from falling around the welding area, thereby reducing the interference of spatters on welding quality; the use of the spatter shielding mechanism 4 can reduce the cleaning time of the working area after welding, because the spatters are effectively blocked outside the spatter shielding mechanism 4; spatters may cause damage to welding equipment, and the spatter shielding mechanism 4 can block these spatters, thereby extending the service life of the welding equipment.

[0022] The complete working principle and steps of the above embodiment are as follows: Initial Limitation: 1. Startup and Preload When all preparations are ready, the spot welding machine body 1 receives a start signal. At this time, the welding cylinder 11 starts to move, driving the welding head 13 to move toward the workpiece on the processing table 12. In the initial stage, the welding head 13 approaches the workpiece at a relatively slow speed and performs a pre-pressing operation. The purpose of pre-pressing is to eliminate the small gap between the workpieces, ensure that the electrode is in close contact with the workpiece surface during welding, reduce spatter, and improve welding quality.

[0023] 2. Welding process As the welding head 13 is in close contact with the workpiece, the control system of the spot welding machine body 1 triggers the welding current. The current flows into the workpiece through the welding head 13. Due to the resistance effect at the contact point between the electrode and the workpiece, the local temperature rises rapidly to a molten state to form a molten core. During this process, the welding cylinder 11 maintains a certain pressure to ensure the uniform formation and diffusion of the molten core, which also helps to reduce welding deformation. The welding time and current are strictly controlled according to the preset parameters to ensure the welding strength and appearance quality.

[0024] 3. Cooling and Release After welding is completed, the welding current is immediately cut off and the welding head 13 enters a cooling stage. This stage is also important because rapid cooling helps solidify the molten core and form a solid welding head 13. At the same time, the welding cylinder 11 slowly releases pressure, and the welding head 13 gradually moves away from the workpiece, completing a welding cycle.

[0025] IV. Inspection and follow-up After welding, the operator will check the welding quality, including the appearance and strength of the weld and whether there are defects such as cracks or pores. If necessary, subsequent grinding, cleaning or coating will be carried out to meet the final requirements of the product.

[0026] When using: Arc friction track mechanism for moving along an arc track to make the heat distribution in the welding area more uniform 2 steps: like Figure 3 to Figure 4 As shown, when the welding head 13 is in close contact with the workpiece, the double-headed rod 22 is driven to deflect laterally by an external reduction motor connected to the driving shaft fixed at the axis of the outer wall of the double-headed rod 22. When the double-headed rod 22 deflects counterclockwise, the inner rod 23 connected to the outer wall of the axis will be driven to deflect counterclockwise. The counterclockwise deflection of the inner rod 23 will also drive the oblique rod 24 connected to one end to deflect counterclockwise. At the same time, the counterclockwise deflection of the double-headed rod 22 will also drive the outer rod 25 connected to one end to deflect clockwise. In this way, the clockwise deflection of the outer rod 25 will drive the long rod 26 deflects clockwise, and the clockwise deflection of the long rod 26 will drive the buckle 28 fixedly connected at one end thereof to deflect together, thereby the symmetrically installed long rod 26 protrudes outward and deflects, thereby driving the outer friction disk 27 fixedly connected at one end thereof to move outward synchronously, so as to achieve friction on the outer surface of the workpiece. In addition, the counterclockwise deflection of the inner rod 23 and the oblique rod 24 will also pull the inner long plate 29 clamped at one end thereof to deflect and move to the right side, so that the inner friction disk 210 fixedly connected to the outer wall of one side of the inner long plate 29 will achieve friction on the inner surface of the workpiece as the inner long plate 29 moves; Similarly, when the double-headed rod 22 deflects clockwise, it will drive the inner rod 23 connected to the outer wall of its axis to deflect clockwise, and the clockwise deflection of the inner rod 23 will also drive the oblique rod 24 connected to one end to deflect clockwise. At the same time, the clockwise deflection of the double-headed rod 22 will also drive the outer rod 25 connected to one end to deflect counterclockwise. In this way, the counterclockwise deflection of the outer rod 25 will also drive the long rod 26 to deflect counterclockwise, and then the counterclockwise deflection of the long rod 26 will drive the oblique rod 24 connected to one end to deflect clockwise. The buckle 28 fixedly connected at one end deflects together, thereby the symmetrically installed long rod 26 retracts and deflects inward, thereby driving the outer friction disk 27 fixedly connected at one end thereof to move inward, thereby achieving friction on the inner surface of the workpiece. In addition, the clockwise deflection of the inner rod 23 and the oblique rod 24 will also pull the inner long plate 29 clamped at one end thereof to deflect and move to the left, so that the inner friction disk 210 fixedly connected to the outer wall of one side of the inner long plate 29 will achieve friction on the inner surface of the workpiece as the inner long plate 29 moves; In summary, through the outward protrusion and inward retraction deflection movement of the long rod 26, its trajectory forms a triangle, so that the fixedly connected outer friction disk 27 will grind the outer surface of the workpiece along the direction of the triangular trajectory. At the same time, the left and right reciprocating deflection movement of the inner long plate 29 will also cause the inner friction disk 210 to grind the inner surface of the workpiece along the direction of the triangular trajectory.

[0027] Arc welding mechanism for removing oxides, oil stains and other impurities from the welding surface 3 steps: like Figures 5 and 6 As shown, when the inner long board 29 deflects and moves to the left, it will synchronously drive the obstacle block 211 fixedly connected to the outer wall of one end of the inner long board 29 to move together. In this way, when the concave-convex surface set on the outer surface of the obstacle block 211 touches the outer wall of the rotating rod 36, the obstacle block 211 will squeeze the rotating rod 36 to deflect to one side, and then the rotating disk 35 connected to the outer wall of one end of the rotating rod 36 will rotate. In this way, when the convex shape set on the outer wall of the rotating disk 35 rotates to touch the outer wall of the built-in rod 34, it will press the built-in rod 34 downward, so that the downward movement of the built-in rod 34 will drive one end of it to be fixed The connected rotating ring block 33 deflects downward at the outer wall of the bottom end of the outer support column 32, so that the knocking hammer 38 fixedly connected to the outer wall of one side of the rotating ring block 33 will move upward with the downward deflection of the rotating ring block 33, and then when the protrusion set on the outer wall of the turntable 35 rotates to the outer wall away from the built-in rod 34, the built-in rod 34 will be reset after downward pressure, and the rotating ring block 33 will be reset after deflection, and then the knocking hammer 38 moving upward will move downward and reset. In summary, the surface of the workpiece is knocked by the up and down reciprocating deflection movement of the knocking hammer 38; The spatter shielding mechanism is used to effectively block sparks, metal particles and other spatters generated during welding. 4 steps: like Figures 7 and 8As shown, when the rotating rod 36 deflects to one side, the fixed column 37 fixedly connected at one end thereof will deflect and move synchronously, and then when the fixed column 37 deflects and moves to touch the belt head rotating block 45, the belt head rotating block 45 will deflect and move downward, so that the fixed shaft 42 fixedly connected to the outer wall of the belt head rotating block 45 will rotate, so that the crank 43 rotatably connected to the outer walls on both sides of the fixed shaft 42 will deflect outward, and the outward deflection of the crank 43 will synchronously pull the connecting rod 44 rotatably connected at one end thereof to deflect upward, and then the upward deflection of the connecting rod 44 will pull its movable block 46 through the movable block 46. The arc block 4501 fixedly connected at one end moves upward, and the upward movement of the arc block 4501 will cause the compressed spring body 48 to rebound the wedge block 47, so that the arc block 4501 after moving upward will slide from the top of the wedge block 47 to the bottom of its inclined surface, and at the same time, when the moving block 46 drives the arc block 4501 to move to the convex part of the square through groove provided on the inner wall of the U-shaped block 41, the arc block 4501 will deflect, and the shielding plate 49 fixedly connected to its outer wall will deflect upward at the same time, so as to achieve shielding of the workpiece placed on the surface of the processing table 12; Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spot welding machine with a cooling function, comprising a spot welding machine body (1) with a rectangular frame structure, a plurality of welding cylinders (11) for controlling the up and down movement of electrodes and completing the pressing and releasing operations during the spot welding process are fixedly connected to the top of the spot welding machine body (1), a processing table (12) for providing a stable support surface for a workpiece and optimizing the layout and positioning of the workpiece on the processing table (12) is fixedly connected to the inner wall of the spot welding machine body (1), a welding head (13) for directly providing current and pressure and contacting and melting metal is fixedly connected to the bottom end of the welding cylinder (11), and the welding head (13) is in the shape of a curved sphere, characterized in that: Arc friction track mechanisms (2) are arranged on both sides of the welding cylinder (11), an arc strike welding mechanism (3) is arranged at the center of the upper end of the processing table (12), and splash shielding mechanisms (4) are arranged on both sides of the upper end of the processing table (12); The arc friction track mechanism (2) is used to move along the arc track so that the heat distribution in the welding area is more uniform; The arc welding mechanism (3) is used to remove impurities such as oxides and oil stains on the welding surface; The splash shielding mechanism (4) is used to effectively block sparks, metal particles and other splashes generated during the welding process.

2. A spot welding machine with a cooling function according to claim 1, characterized in that: The arc friction track mechanism (2) comprises a docking plate (21) fixedly connected to the outer wall of the bottom end of the welding cylinder (11), and two docking plates (21) are symmetrically arranged about the central axis of the welding cylinder (11), and the top ends of the two docking plates (21) away from the welding cylinder (11) are both rotatably connected to a double-headed rod (22), and the axis of the outer wall of the two double-headed rods (22) away from the docking plate (21) are both rotatably connected to an inner rod (23), and the outer walls of one end of the two inner rods (23) away from the double-headed rods (22) are both rotatably connected to an oblique rod (24), and the outer walls of one end of the two double-headed rods (22) away from the inner rod (23) are both rotatably connected to an outer rod (23). 5), the outer walls of one end of the two outer rods (25) away from the double-headed rod (22) are rotatably connected to the long rod (26), the outer walls of one end of the two long rods (26) away from the outer rods (25) are fixedly connected to the buckle (28), the inner wall of the buckle (28) away from the long rod (26) is fixedly connected to the outer friction disk (27), the outer walls of the bottom ends of the two inner rods (23) close to the inclined rod (24) are fixedly connected to the inner long plate (29), the outer wall of the inner long plate (29) close to the outer friction disk (27) is fixedly connected to a plurality of inner friction disks (210), and the outer walls of both ends of the inner long plate (29) are fixedly connected to obstacle blocks (211).

3. A spot welding machine with a cooling function according to claim 2, characterized in that: A driving shaft is fixedly connected to the axis of the outer wall of the double-headed rod (22); one end of the two inclined rods (24) away from the inner rod (23) is rotatably connected to the outer wall of one end of the inclined rod (24) close to the long rod (26); the outer wall of the outer friction disk (27) is covered with sandpaper; one end of one of the long rods (26) close to the outer friction disk (27) is rotatably connected to the inside of the buckle (28); and the outer wall of the obstacle block (211) is provided with a concave and convex surface.

4. A spot welding machine with a cooling function according to claim 2, characterized in that: Square through grooves are provided on both sides of the inner long plate (29); the bottom ends of the two inner rods (23) on one side close to the inclined rod (24) are respectively clamped in the square through grooves provided on both sides of the inner long plate (29); the outer walls of the plurality of inner friction discs (210) are covered with sandpaper; the positions of the plurality of inner friction discs (210) are uniformly distributed horizontally in one direction; and the plurality of inner friction discs (210) and the outer friction discs (27) are distributed in a triangular relationship.

5. The spot welding machine with a cooling function according to claim 1, characterized in that: The arc welding mechanism (3) comprises an inclined bottom plate (31) fixedly connected to the inner walls of both sides of the processing table (12); a surface of the inclined bottom plate (31) on a side away from the processing table (12) is fixedly connected to an outer support column (32); two outer support columns (32) are symmetrically arranged about the central axis of the inclined bottom plate (31); the outer walls of the bottom ends of the two outer support columns (32) on a side close to the inclined bottom plate (31) are fixedly connected and rotatably connected to a rotating ring block (33); the rotating ring block (33) is away from the outer support column A striking hammer (38) is fixedly connected to an outer wall of one side of the rotating ring block (32); an inner rod (34) is fixedly connected to an outer wall of one end of the rotating ring block (33) away from the striking hammer (38); a rotating disk (35) is rotatably connected to an outer wall of the top end of the outer support column (32) away from the rotating ring block (33); a rotating rod (36) is rotatably connected to an outer wall of one side of the rotating disk (35) away from the outer support column (32); and a fixed column (37) is fixedly connected to an outer wall of one end of the rotating rod (36) away from the rotating disk (35).

6. The spot welding machine with a cooling function according to claim 5, characterized in that: The outer wall of the striking hammer (38) is fixedly connected to an obstacle ball, the outer wall of the rotating disk (35) is provided with a raised portion, and the initial position of the built-in rod (34) abuts against the raised portion provided on the outer wall of the rotating disk (35).

7. The spot welding machine with a cooling function according to claim 5, characterized in that: The outer walls of the fixed columns (37) are each provided with a protruding column, and the outer wall of the rotating rod (36) abuts against a concave and convex surface provided on the outer wall of the obstacle block (211).

8. The spot welding machine with a cooling function according to claim 1, characterized in that: The splash shielding mechanism (4) comprises a U-shaped block (41) fixedly connected to the upper surface of the processing table (12); an inner wall of one end of the U-shaped block (41) away from the processing table (12) is penetrated and fixedly connected with a fixed shaft (42); outer walls of both ends of the fixed shaft (42) away from the U-shaped block (41) are rotatably connected with cranks (43); inner walls of one end of the two cranks (43) away from the fixed shaft (42) are rotatably connected with connecting rods (44); and the ends of the two connecting rods (44) away from the cranks (43) are fixedly connected with The arc block (4501) is rotatably connected to a head rotating block (45) at the outer wall of the fixed shaft (42); the outer walls of the top ends of the two arc blocks (4501) close to the U-shaped block (41) are fixedly connected to a moving block (46); wedge blocks (47) are arranged below the two arc blocks (4501); the bottom ends of the two wedge blocks (47) are fixedly connected to a spring body (48); and the outer walls of the two arc blocks (4501) away from the moving block (46) are fixedly connected to a shielding plate (49).

9. The spot welding machine with a cooling function according to claim 8, characterized in that: The initial position of the head rotating block (45) contacts the raised column provided on the outer wall of the fixed column (37), and the outer walls on both sides of the U-shaped block (41) are penetrated by raised square through-grooves, and the two movable blocks (46) are respectively slidably connected to the raised square through-grooves penetrated by the outer walls on both sides of the U-shaped block (41), and the spring body (48) is in a compressed state.

10. The spot welding machine with a cooling function according to claim 8, characterized in that: The two wedge blocks (47) are slidably connected to the inner wall of the U-shaped block (41); the outer walls of the two wedge blocks (47) are provided with inclined surfaces; the two arc blocks (4501) are respectively slidably connected to the inclined surfaces provided on the outer walls of the wedge blocks (47); one end of the two spring bodies (48) away from the wedge blocks (47) is fixedly connected to the bottom surface of the U-shaped block (41); the outer walls of the shielding plates (49) are provided with circular through holes; and the initial position of the shielding plates (49) is on the same vertical plane as the processing table (12).

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