Welding device suitable for metal material production

Abstract

The invention relates to the technical field of metal material welding, in particular to a welding device suitable for metal material production, which comprises a support frame, an operation table is fixed in the support frame, two groups of second through grooves are symmetrically formed in the two sides in the operation table, and two moving blocks are symmetrically and slidably connected to the front and rear ends in the second through grooves; a positioning and centering mechanism is mounted on the upper surface of the moving block; metal materials of different sizes within a certain range are positioned, centered and clamped through the positioning and centering mechanism, stable butt joint of the metal materials is guaranteed, meanwhile, the metal materials are located in the middle of a welding head, the uniformity of the subsequent welding effect is guaranteed, meanwhile, a positioning block can be adjusted according to the metal materials of different shapes, and the welding efficiency is improved. In this way, timely replacement can be conducted according to metal material formation, the overall applicability is improved, after welding is completed, a welding seam is ground in time through the grinding wheel, meanwhile, damage to the metal material caused by heat generated during grinding is avoided through the cooling assembly, and the welding seam strength is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal material welding, and in particular to a welding device suitable for metal material production. Background Art

[0002] In the field of metal material processing, welding, as an important connection and forming technology, is widely used in many industries such as machinery manufacturing, shipbuilding industry, construction engineering, power equipment production, aviation and aerospace industry, etc. Metal materials, especially ferrous metals such as iron, chromium, manganese and their alloys, such as steel, as basic structural materials, the improvement of their processing and connection technology is of great significance to industrial development;

[0003] Most metal material welding devices in the prior art can only position and clamp metal of a certain shape, and it is difficult to position metal materials of different shapes according to needs. The overall applicability is low, and it is impossible to ensure that the metal material is centered during welding, causing inconvenience in subsequent welding. At the same time, after welding, it is impossible to maintain the stability of the welding head angle and speed, and it is difficult to grind the weld in time, resulting in an unstable weld.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding device suitable for the production of metal materials, which can center and clamp metal materials of different shapes through a positioning and centering mechanism to improve the overall applicability and facilitate subsequent welding. The welding seam can be timely polished with a grinding wheel to improve the strength of the welding seam, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a welding device suitable for metal material production, comprising a support frame, an operating table is fixed inside the support frame, two groups of second through grooves are symmetrically opened on both sides of the inside of the operating table, two moving blocks are symmetrically slidably connected at the front and rear ends of the inside of the second through groove, and a positioning and centering mechanism is installed on the upper surface of the moving block;

[0007] A fixing ring is fixed at the middle position inside the operating table, a mounting ring is rotatably connected at the middle position of the fixing ring, a gear ring is sleeved and fixed on the outer side of the mounting ring, and four mechanical arms are equidistantly fixed inside the mounting ring, two of the mechanical arms are fixed with welding heads at one end, and mounting blocks are provided at one end of the other two mechanical arms, a cooling assembly is installed between the mechanical arms and the mounting block, a driving gear is meshedly connected at one end of the gear ring, and a first motor is fixed to one side of the driving gear.

[0008] Furthermore, the positioning and centering mechanism includes a second turntable rotatably connected to the inside of the moving block, a first turntable is arranged at a position on the upper surface of the support frame corresponding to the second turntable, two guide rods are fixed between the first turntable and the second turntable, a first bidirectional screw rod rotatably connected between the two guide rods is arranged, a first through groove is opened on the upper surface of the support frame corresponding to the position of the guide rod and the first bidirectional screw rod, three positioning blocks are equidistantly sleeved between the guide rod and the first bidirectional screw rod on the same side, one side of the positioning block is an arc-shaped structure, the middle positioning block is fixedly connected to the guide rod, and the positioning block at the middle position is on the same horizontal line as the center of the mounting ring, the upper and lower positioning blocks are slidably connected to the guide rods, and the other sides of the upper and lower positioning blocks are fixed with limit blocks.

[0009] Furthermore, the top of the first turntable is rotatably connected to a moving box, the inside of the moving box is rotatably connected to a worm gear, the bottom of the worm gear penetrates and extends to the outside of the moving box and is fixed to the first turntable, and one side of the worm gear is meshed with a worm inside the moving box, a second rotating shaft is penetrated inside the worm gear, the outer layer of the second rotating shaft is sleeved with a first ring rotatably connected to the moving box at a position corresponding to the side wall of the moving box, and one end of the second rotating shaft is slidably sleeved with a first sleeve on the outer layer.

[0010] Furthermore, a first bevel gear is fixed to one end of the first sleeve, one side of the two first bevel gears are meshed and connected with a second bevel gear, the interiors of the two second bevel gears on the same side are connected with a first rotating shaft, and one side of the first rotating shaft is fixed to a second motor on the upper surface of the support frame.

[0011] Furthermore, the bottom end of the first bidirectional screw rod passes through the second turntable and extends to the interior of the moving block, and the outer layer of the bottom end of the first bidirectional screw rod is sleeved with a third bevel gear rotatably connected to the interior of the moving block, and a placement cavity is opened in the interior of the moving block at a position corresponding to the third bevel gear, and a sliding thread assembly is installed between the first bidirectional screw rod and the third bevel gear.

[0012] Furthermore, a third rotating shaft is fixed to one side of the third bevel gear, a second ring is fixed to an outer sleeve on one side of the third rotating shaft, and a second sleeve is slidably sleeved on an outer sleeve on one side of the third rotating shaft, which penetrates and extends to the outside of the operating table. The second sleeve is rotatably connected to the operating table, and the bottom of the moving block and the second ring penetrate and extend to the outside of the second through groove and are jointly fixed with a screw sleeve, and a second bidirectional screw rod is jointly penetrated and connected to the inside of the two screw sleeves.

[0013] Furthermore, transmission gears are fixed on both sides of the second bidirectional screw and one side of the second sleeve, and the two transmission gears on the same side are meshed with each other, and one side of one of the transmission gears is connected to a third motor fixed to the side of the operating table.

[0014] Furthermore, the sliding thread assembly includes protrusions equidistantly fixed on the inner side of the third bevel gear, the inner side of the third bevel gear is divided into a plurality of slots by the protrusions, and corresponding telescopic blocks are provided at the positions of the slots on both sides of the outer layer of the first bidirectional screw rod, and a first spring is fixed on one side of the telescopic block inside the first bidirectional screw rod.

[0015] Furthermore, the cooling assembly includes a mounting block sleeved on one end of the robotic arm, a grinding wheel is rotatably connected inside one end of the mounting block, and a liquid storage chamber is opened inside the mounting block at a position corresponding to the grinding wheel, a plurality of nozzles are equidistantly fixed at one end of the liquid storage chamber at a position corresponding to the grinding wheel, a piston is fixed at one end of the robotic arm at a position corresponding to the liquid storage chamber, and a second spring is symmetrically fixed between the robotic arm and both sides of the mounting block.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The present invention is provided with a positioning and centering mechanism. When welding metal materials, the metal materials are placed between the positioning blocks, the third motor is started to drive the second bidirectional screw to rotate, the second bidirectional screw is used to drive the screw sleeve to move, the screw sleeve moves and drives the moving block to move, and then drives the positioning block to move horizontally. The third motor is started and cooperates with two transmission gears to drive the second sleeve to rotate, the second sleeve rotation drives the second rotation, and cooperates with the third bevel gear and the fourth bevel gear to drive the first bidirectional screw to rotate, thereby driving the positioning block to move synchronously in the vertical direction, and then the metal materials of different sizes within a certain range can be positioned and clamped;

[0018] At the same time, the positioning block can be converted according to the shape of the metal material. When it is necessary to clamp the square steel, the second motor is started to cooperate with the first bevel gear and the second bevel gear to drive the two first sleeves to rotate. The rotation of the first sleeve drives the first rotating shaft to rotate, and the worm gear and the worm drive the first turntable to rotate, thereby driving the positioning block to rotate as a whole, so as to facilitate the positioning of the square steel. During the rotation of the first bidirectional screw, the third bevel gear will be driven to rotate. When the third bevel gear rotates, the sliding thread assembly is used to avoid motion interference with the fourth bevel gear, so as to ensure the normal operation of the overall mechanism, and metal materials of different shapes and sizes can be quickly positioned to keep the metal materials stably docked, which is convenient for subsequent welding work.

[0019] 2. In the present invention, the first motor cooperates with the driving gear and the gear ring to drive the mounting ring to rotate, and then drives the four mechanical arms to rotate. During the rotation of the mechanical arms, the welding head is used to weld the metal material. The metal material is welded at an overall stable speed and angle to ensure the uniformity and continuity of the welding. At the same time, after the welding is completed, the welding seam is grinded with a grinding wheel to remove welding residues and oxides and improve the strength of the weld.

[0020] 3. The present invention is provided with a cooling component. When the welding seam is polished by the grinding wheel, after the mounting block is squeezed, the piston at the top of the mechanical arm squeezes the coolant inside the liquid storage chamber. After being squeezed, the coolant is sprayed to the surface of the grinding wheel through the nozzle. The heat generated in the grinding process is taken away in time by the coolant, which prevents deformation or cracking due to overheating during the welding process, thereby ensuring the overall welding quality.

[0021] In summary, the present invention uses a positioning and centering mechanism to position, center and clamp metal materials of different sizes within a certain range, thereby ensuring that the metal materials are stably docked and located in the middle of the welding head, thereby ensuring the uniformity of subsequent welding effects. At the same time, the positioning block can be adjusted according to metal materials of different shapes, so that it can be replaced in time according to the formation of metal materials, thereby improving the overall applicability. After welding is completed, the welding seam is polished in time by a grinding wheel, and a cooling component is used to avoid damage to the metal material caused by the heat generated during grinding, thereby improving the strength of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a combined view of the first rotating disk and the moving box of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure inside the mobile box of the present invention;

[0025] Figure 4 It is a combined view of the first bidirectional screw rod and the moving block of the present invention;

[0026] Figure 5 A combined view of the third bevel gear and the fourth bevel gear of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the sliding wire assembly of the present invention;

[0028] Figure 7 A side view of the positioning and centering mechanism of the present invention;

[0029] Figure 8 It is a combined view of the mounting ring and the gear ring of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the cooling assembly of the present invention.

[0031] Figure numerals: 1, support frame; 2, positioning and centering mechanism; 3, operating table; 4, gear ring; 5, driving gear; 6, first motor; 7, fixed ring; 8, first through slot; 9, first rotating shaft; 10, second motor; 11, second rotating shaft; 12, first sleeve; 13, first bevel gear; 14, second bevel gear; 15, first sleeve ring; 16, first rotating disk; 17, guide rod; 18, first bidirectional screw rod; 19, moving block; 20, second through slot; 21, second rotating disk; 22, moving box; 23, worm; 24, worm wheel; 25, second bidirectional screw rod 1. Screw rod; 26. Placement cavity; 27. Screw sleeve; 28. Second sleeve ring; 29. ​​Third rotating shaft; 30. Second sleeve; 31. Transmission gear; 32. Third motor; 33. Cooling assembly; 34. Third bevel gear; 35. Fourth bevel gear; 36. Bump; 37. First spring; 38. Telescopic block; 39. Limit block; 40. Positioning block; 41. Mounting ring; 42. Grinding wheel; 43. Robot arm; 44. Welding head; 45. Mounting block; 46. Piston; 47. Second spring; 48. Liquid storage cavity; 49. Nozzle; 50. Sliding wire assembly. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1:

[0034] This embodiment is intended to address the problem that welding devices suitable for metal material production in the prior art are difficult to maintain an overall centering effect during the welding process, that is, the welding points of the metal materials are prone to deviations, which affects the welding accuracy, and cannot be adjusted in time according to the shape of the metal materials during the welding process, making it difficult to stably clamp and position metal materials of different shapes, resulting in poor overall applicability.

[0035] like Figure 1-7 As shown, a welding device suitable for metal material production includes a support frame 1, an operating table 3 is fixed inside the support frame 1, two sets of second through grooves 20 are symmetrically opened on both sides of the operating table 3, two moving blocks 19 are symmetrically slidably connected at the front and rear ends of the second through grooves 20, and a positioning and centering mechanism 2 is installed on the upper surface of the moving block 19;

[0036] The positioning and centering mechanism 2 includes a second turntable 21 rotatably connected to the inside of the moving block 19, a first turntable 16 is arranged at a position on the upper surface of the support frame 1 corresponding to the second turntable 21, two guide rods 17 are fixed between the first turntable 16 and the second turntable 21, a first bidirectional screw rod 18 rotatably connected between the first turntable 16 and the second turntable 21 is arranged between the two guide rods 17, the first bidirectional screw rod 18 is not provided with a thread at a positioning block 40 at a middle position corresponding to the first bidirectional screw rod 18, and is fixedly connected to the positioning block 40, and a first through groove 8 is opened at a position on the upper surface of the support frame 1 corresponding to the guide rod 17 and the first bidirectional screw rod 18;

[0037] Three positioning blocks 40 are equidistantly sleeved between the guide rod 17 on the same side and the first bidirectional screw rod 18. One side of the positioning block 40 is an arc-shaped structure. The middle positioning block 40 is fixedly connected to the guide rod 17, and the center of the positioning block 40 and the mounting ring 41 at the middle position are located on the same horizontal line. By being located on the same horizontal line, the metal material is kept at the center position during welding, ensuring that there is no deviation due to different distances during welding. The upper and lower positioning blocks 40 are slidably connected to the guide rod 17, and the other sides of the upper and lower positioning blocks 40 are fixed with limit blocks 39;

[0038] The top of the first rotating disk 16 is rotatably connected to a moving box 22, and the inside of the moving box 22 is rotatably connected to a worm gear 24. The bottom of the worm gear 24 penetrates and extends to the outside of the moving box 22 and is fixed to the first rotating disk 16, and a worm 23 is meshed with the inside of the moving box 22 on one side of the worm gear 24, and the inside of the worm gear 23 penetrates the second rotating shaft 11, and the outer layer of the second rotating shaft 11 is sleeved with a first sleeve 15 rotatably connected to the moving box 22 at a position corresponding to the side wall of the moving box 22, and the outer layer of one end of the second rotating shaft 11 is slidably sleeved with a first sleeve 12, and the outer layer of the second rotating shaft 11 and the inside of the first sleeve 12 are both elliptical structures, so that the rotation of the first sleeve 12 can drive the second rotating shaft 11 to rotate, and the inside of the first sleeve 15 is an elliptical structure adapted to the second rotating shaft 11;

[0039] A first bevel gear 13 is fixed to one end of the first sleeve 12, and one side of the two first bevel gears 13 is meshed and connected with a second bevel gear 14. The interiors of the two second bevel gears 14 on the same side are penetrated and connected with a first rotating shaft 9. A second motor 10 is fixed to the upper surface of the support frame 1 on one side of the first rotating shaft 9. When the second motor 10 is started, the first rotating shaft 9 is driven to rotate. The first rotating shaft 9 rotates to cooperate with the first bevel gear 13 and the second bevel gear 14 to drive the first sleeve 12 to rotate. The rotation of the first sleeve 12 drives the second rotating shaft 11 to rotate. The bottom end of the first bidirectional screw rod 18 passes through the second rotating disk 21 and extends to the inside of the moving block 19, and the outer layer of the bottom end of the first bidirectional screw rod 18 is sleeved with a third bevel gear 34 rotatably connected to the inside of the moving block 19. A placement cavity 26 is provided at the position of the third bevel gear 34 in the moving block 19, and a sliding thread assembly 50 is installed between the first bidirectional screw rod 18 and the third bevel gear 34.

[0040] The sliding thread assembly 50 includes a protrusion 36 fixed to the inner side of the third bevel gear 34 at equal intervals. The inner side of the third bevel gear 34 is divided into a plurality of slots by the protrusion 36. Matching telescopic blocks 38 are provided at the positions of the slots on both sides of the outer layer of the first bidirectional screw rod 18. When the third bevel gear 34 rotates, it interferes with the fourth bevel gear 35 and cannot move. At this time, the protrusion 36 continuously squeezes the telescopic block 38, and then squeezes the telescopic block 38 into the first bidirectional screw rod 18. After being squeezed, the first bidirectional screw rod 18 is ejected by the rebound force of the first spring 37 at the same time, so as to form a sliding thread effect in a reciprocating manner to avoid motion interference when the first bidirectional screw rod 18 rotates. A first spring 37 is fixed on one side of the telescopic block 38 inside the first bidirectional screw rod 18.

[0041] A third rotating shaft 29 is fixed to one side of the third bevel gear 34, and a second sleeve 28 is sleeved and fixed to the outer layer of one side of the third rotating shaft 29. The interior of the second sleeve 28 is an elliptical structure adapted to the third rotating shaft 29. The movement of the second sleeve 28 drives the third rotating shaft 29 to move synchronously, so as to keep the third bevel gear 34 and the fourth bevel gear 35 in continuous meshing, and ensure that the positioning block 40 is in synchronous movement in the horizontal and vertical directions, so as to position and clamp metal materials of different sizes within a certain range, and a second sleeve 30 that penetrates and extends to the outside of the operating table 3 is slidably sleeved to the outer layer of one side of the third rotating shaft 29. The outer layer of the third rotating shaft 29 and the interior of the second sleeve 30 are both elliptical structures, so that when the second sleeve 30 rotates, the third rotating shaft 29 can be driven to rotate, and the second sleeve 30 is rotatably connected to the operating table 3;

[0042] The bottom of the moving block 19 and the second sleeve 28 penetrate and extend to the outside of the second through groove 20, and a screw sleeve 27 is fixed thereto. The two screw sleeves 27 are penetrated and connected thereto with a second bidirectional screw rod 25. The second bidirectional screw rod 25 rotates to drive the screw sleeve 27 to move. During the movement of the screw sleeve 27, the moving block 19 and the second sleeve 28 are also driven to move. The movement of the moving block 19 drives the positioning block 40 to move in the horizontal direction to adapt to the width of the metal material. Transmission gears 31 are fixed on both sides of the second bidirectional screw rod 25 and one side of the second sleeve 30. The two transmission gears 31 on the same side are meshed with each other, and one side of one of the transmission gears 31 is connected to a third motor 32 fixed to the side of the operating table 3.

[0043] When welding, the metal material is placed between the positioning blocks 40, and the third motor 32 is started to cooperate with the transmission gear 31 to drive the second bidirectional screw 25 and the second sleeve 30 to rotate. The rotation of the second sleeve 30 drives the third shaft 29 to rotate. The rotation of the third shaft 29 cooperates with the third bevel gear 34 and the fourth bevel gear 35 to drive the first bidirectional screw 18 to rotate, thereby driving the two positioning blocks 40 at the upper and lower ends to move relative to or away from each other to adapt to the thickness of the metal material;

[0044] At the same time, the second bidirectional screw 25 rotates to drive the screw sleeve 27 to move. During the movement of the screw sleeve 27, the moving block 19 and the second sleeve ring 28 are also driven to move. The movement of the moving block 19 drives the positioning block 40 to move in the horizontal direction to adapt to the width of the metal material. At the same time, the movement of the second sleeve ring 28 drives the third rotating shaft 29 to move synchronously, thereby maintaining the continuous meshing of the third bevel gear 34 and the fourth bevel gear 35, ensuring that the positioning block 40 is in the synchronous movement of the horizontal and vertical directions, so as to position and clamp metal materials of different sizes within a certain range;

[0045] When the metal material is square steel, the second motor 10 is started to drive the first shaft 9 to rotate, the first shaft 9 rotates in coordination with the first bevel gear 13 and the second bevel gear 14 to drive the first sleeve 12 to rotate, the first sleeve 12 rotates and drives the second shaft 11 to rotate, during the rotation of the second shaft 11, the worm 23 and the worm wheel 24 drive the first turntable 16 to rotate, thereby driving the guide rod 17 and the first bidirectional screw 18 to rotate synchronously, and then driving the other side of the positioning block 40 to clamp and position the square steel;

[0046] The rotation of the first bidirectional screw rod 18 drives the third bevel gear 34 to rotate. When the third bevel gear 34 rotates, it interferes with the fourth bevel gear 35 and cannot move. At this time, the protrusion 36 continuously squeezes the telescopic block 38, and then squeezes the telescopic block 38 into the first bidirectional screw rod 18. After being squeezed, the first bidirectional screw rod 18 is ejected by the rebound force of the first spring 37, thereby forming a sliding thread effect in a reciprocating cycle, avoiding motion interference when the first bidirectional screw rod 18 rotates, ensuring that the positioning block 40 is converted, and improving the overall applicability.

[0047] Embodiment 2:

[0048] This embodiment aims to address the problem that the welding device suitable for metal material production in the prior art cannot keep the welding head in a stable speed and angle state during the welding process, which causes local differences in the weld seam, cracking and deformation, and the weld seam cannot be polished in time after welding is completed.

[0049] like Figure 8-9 As shown, the embodiment is a welding device suitable for metal material production, and a fixing ring 7 is fixed at the middle position of the operating table 3, and a mounting ring 41 is rotatably connected at the middle position of the fixing ring 7, and a gear ring 4 is sleeved and fixed on the outer side of the mounting ring 41, and four mechanical arms 43 are fixed at equal intervals inside the mounting ring 41, wherein welding heads 44 are fixed at one end of two of the mechanical arms 43, and the distance between the welding heads 44 and the metal material is adjusted by the mechanical arms 43, and mounting blocks 45 are provided at one end of the other two mechanical arms 43;

[0050] A cooling assembly 33 is installed between the mechanical arm 43 and the mounting block 45. One end of the ring gear 4 is meshedly connected with a driving gear 5. A first motor 6 is fixed to one side of the driving gear 5. The first motor 6 is started to cooperate with the driving gear 5 and the ring gear 4 to drive the mounting ring 41 to rotate. Then, the metal material is welded using the welding head 44 to keep the welding speed and angle stable.

[0051] The cooling assembly 33 includes a mounting block 45 which is sleeved on one end of a robotic arm 43. A grinding wheel 42 is rotatably connected to one end of the mounting block 45. A liquid storage chamber 48 is provided inside the mounting block 45 at a position corresponding to the grinding wheel 42. A plurality of nozzles 49 are equidistantly fixed at one end of the liquid storage chamber 48 at a position corresponding to the grinding wheel 42. The mounting block 45 is squeezed and moves toward the position of the robotic arm 43. A piston 46 squeezes the coolant in the liquid storage chamber 48 and sprays it onto the surface of the grinding wheel 42 through the nozzle 49. A piston 46 is fixed at one end of the robotic arm 43 at a position corresponding to the liquid storage chamber 48. A second spring 47 is symmetrically fixed between the robotic arm 43 and both sides of the mounting block 45. The second spring 47 is used to reset the mounting block 45.

[0052] After the metal material is positioned, the distance between the welding head 44 and the metal material is adjusted by the mechanical arm 43, and the first motor 6 is started to cooperate with the driving gear 5 and the gear ring 4 to drive the mounting ring 41 to rotate, and then the welding head 44 is used to weld the metal material, keeping the welding speed and angle stable to ensure the welding effect;

[0053] When welding is completed, the robot arm 43 is started to drive the grinding wheel 42 to be close to the surface of the weld seam, and the mounting block 45 is squeezed and moved toward the position of the robot arm 43. The piston 46 squeezes the coolant inside the liquid storage chamber 48 and sprays it to the surface of the grinding wheel 42 through the nozzle 49. The weld seam is then grinded by the grinding wheel 42. During the grinding process, the coolant is used to take away the heat generated during grinding, so as to avoid cracking or deformation of the weld seam caused by excessive heat.

[0054] Working process and principle of the present invention:

[0055] Step 1: When welding, place the metal material between the positioning blocks 40, start the third motor 32 to cooperate with the transmission gear 31 to drive the second bidirectional screw 25 and the second sleeve 30 to rotate, the second sleeve 30 rotates to drive the third shaft 29 to rotate, the third shaft 29 rotates to cooperate with the third bevel gear 34 and the fourth bevel gear 35 to drive the first bidirectional screw 18 to rotate, thereby driving the two positioning blocks 40 at the upper and lower ends to move relative or opposite to each other to adapt to the thickness of the metal material;

[0056] At the same time, the second bidirectional screw 25 rotates to drive the screw sleeve 27 to move. During the movement of the screw sleeve 27, the moving block 19 and the second sleeve ring 28 are also driven to move. The movement of the moving block 19 drives the positioning block 40 to move in the horizontal direction to adapt to the width of the metal material. At the same time, the movement of the second sleeve ring 28 drives the third rotating shaft 29 to move synchronously, thereby maintaining the continuous meshing of the third bevel gear 34 and the fourth bevel gear 35, ensuring that the positioning block 40 is in the synchronous movement of the horizontal and vertical directions, so as to position and clamp metal materials of different sizes within a certain range;

[0057] When the metal material is square steel, the second motor 10 is started to drive the first shaft 9 to rotate, the first shaft 9 rotates in coordination with the first bevel gear 13 and the second bevel gear 14 to drive the first sleeve 12 to rotate, the first sleeve 12 rotates and drives the second shaft 11 to rotate, during the rotation of the second shaft 11, the worm 23 and the worm wheel 24 drive the first turntable 16 to rotate, thereby driving the guide rod 17 and the first bidirectional screw 18 to rotate synchronously, and then driving the other side of the positioning block 40 to clamp and position the square steel;

[0058] The first bidirectional screw rod 18 rotates and drives the third bevel gear 34 to rotate. When the third bevel gear 34 rotates, it interferes with the fourth bevel gear 35 and cannot move. At this time, the convex block 36 continuously squeezes the telescopic block 38, and then squeezes the telescopic block 38 into the first bidirectional screw rod 18. After being squeezed, the first bidirectional screw rod 18 is ejected by the rebound force of the first spring 37 at the same time. In this way, a sliding effect is formed in a reciprocating cycle, thereby avoiding motion interference when the first bidirectional screw rod 18 rotates, ensuring that the positioning block 40 is converted, and improving the overall applicability.

[0059] Step 2: After the metal material is positioned, the distance between the welding head 44 and the metal material is adjusted by the mechanical arm 43, and the first motor 6 is started to cooperate with the driving gear 5 and the gear ring 4 to drive the mounting ring 41 to rotate, and then the welding head 44 is used to weld the metal material, and the welding speed and angle are kept stable to ensure the welding effect;

[0060] When welding is completed, the robot arm 43 is started to drive the grinding wheel 42 to be close to the surface of the weld seam, and the mounting block 45 is squeezed and moved toward the position of the robot arm 43. The piston 46 squeezes the coolant inside the liquid storage chamber 48 and sprays it to the surface of the grinding wheel 42 through the nozzle 49. The weld seam is then grinded by the grinding wheel 42. During the grinding process, the coolant is used to take away the heat generated during grinding, so as to avoid cracking or deformation of the weld seam caused by excessive heat.

[0061] In summary, the positioning and centering mechanism 2 is adjusted according to the metal materials of different shapes to facilitate stable positioning and clamping, and at the same time, the metal materials of different sizes within a certain range are positioned and centered so that the metal material is located at the center of the mounting ring 41, thereby avoiding local differences in the weld caused by the different distances between the welding head 44 and the metal material. At the same time, the weld is polished with a grinding wheel 42, and the cooling component 33 is used to reduce the heat generated during polishing to avoid the weld from cracking or deformation due to overheating, thereby ensuring the strength of the weld.

[0062] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device suitable for metal material production, comprising a support frame (1), characterized in that: An operating table (3) is fixed inside the support frame (1), two groups of second through slots (20) are symmetrically opened on both sides of the operating table (3), two moving blocks (19) are symmetrically slidably connected to the front and rear ends of the second through slots (20), and a positioning and centering mechanism (2) is installed on the upper surface of the moving block (19); A fixing ring (7) is fixed at the middle position inside the operating table (3), and a mounting ring (41) is rotatably connected at the middle position of the fixing ring (7). A gear ring (4) is sleeved and fixed on the outer side of the mounting ring (41), and four mechanical arms (43) are fixed at equal intervals inside the mounting ring (41), wherein one end of two of the mechanical arms (43) is fixed with a welding head (44), and one end of the other two mechanical arms (43) is provided with a mounting block (45), and a cooling assembly (33) is installed between the mechanical arms (43) and the mounting block (45), and one end of the gear ring (4) is meshedly connected with a driving gear (5), and a first motor (6) is fixed to one side of the driving gear (5).

2. A welding device suitable for metal material production according to claim 1, characterized in that: The positioning and centering mechanism (2) comprises a second turntable (21) rotatably connected to the inside of the moving block (19); a first turntable (16) is arranged on the upper surface of the support frame (1) at a position corresponding to the second turntable (21); two guide rods (17) are fixed between the first turntable (16) and the second turntable (21); a first bidirectional screw rod (18) rotatably connected between the first turntable (16) and the second turntable (21) is arranged between the two guide rods (17); the upper surface of the support frame (1) corresponds to the guide rods (17) and the first bidirectional screw rod (18); A first through slot (8) is provided at the position of the rod (18); three positioning blocks (40) are equidistantly sleeved between the guide rod (17) and the first bidirectional screw rod (18) on the same side; one side of the positioning block (40) is in an arc-shaped structure; the middle positioning block (40) is fixedly connected to the guide rod (17); the center of the positioning block (40) and the mounting ring (41) at the middle position are located on the same horizontal line; the upper and lower positioning blocks (40) are slidably connected to the guide rod (17); and the other sides of the upper and lower positioning blocks (40) are fixed with limit blocks (39).

3. A welding device suitable for metal material production according to claim 2, characterized in that: The top of the first rotating disk (16) is rotatably connected to a moving box (22), and the inside of the moving box (22) is rotatably connected to a worm gear (24). The bottom of the worm gear (24) passes through and extends to the outside of the moving box (22) and is fixed to the first rotating disk (16), and a worm (23) is meshed with the inside of the moving box (22) on one side of the worm gear (24), and the inside of the worm gear (23) passes through a second rotating shaft (11), and the outer layer of the second rotating shaft (11) is sleeved with a first ring (15) rotatably connected to the moving box (22) at a position corresponding to the side wall of the moving box (22), and one end of the second rotating shaft (11) is slidably sleeved with a first sleeve (12).

4. A welding device suitable for metal material production according to claim 3, characterized in that: A first bevel gear (13) is fixed to one end of the first sleeve (12); one side of the two first bevel gears (13) is meshed with a second bevel gear (14); the interiors of the two second bevel gears (14) on the same side are penetrated by a first rotating shaft (9); and a second motor (10) is fixed to the upper surface of the support frame (1) on one side of the first rotating shaft (9).

5. A welding device suitable for metal material production according to claim 2, characterized in that: The bottom end of the first bidirectional screw rod (18) passes through the second rotating disk (21) and extends to the inside of the moving block (19), and the outer layer of the bottom end of the first bidirectional screw rod (18) is sleeved with a third bevel gear (34) rotatably connected to the inside of the moving block (19), and a placement cavity (26) is opened in the inside of the moving block (19) at a position corresponding to the third bevel gear (34), and a sliding thread assembly (50) is installed between the first bidirectional screw rod (18) and the third bevel gear (34).

6. A welding device suitable for metal material production according to claim 5, characterized in that: A third rotating shaft (29) is fixed to one side of the third bevel gear (34); a second sleeve (28) is sleeved and fixed to the outer layer of one side of the third rotating shaft (29); and a second sleeve (30) is slidably sleeved to the outer layer of one side of the third rotating shaft (29) and penetrates and extends to the outside of the operating table (3); the second sleeve (30) is rotationally connected to the operating table (3); the bottom of the moving block (19) and the second sleeve (28) penetrate and extend to the outside of the second through groove (20) and are jointly fixed with a screw sleeve (27); and the inside of the two screw sleeves (27) is jointly penetrated and connected with a second bidirectional screw rod (25).

7. A welding device suitable for metal material production according to claim 6, characterized in that: Transmission gears (31) are fixed on both sides of the second bidirectional screw rod (25) and one side of the second sleeve (30), and the two transmission gears (31) on the same side are meshed with each other, and one side of one of the transmission gears (31) is connected to a third motor (32) fixed to the side of the operating table (3).

8. A welding device suitable for metal material production according to claim 5, characterized in that: The sliding thread assembly (50) includes a protrusion (36) fixed at equal intervals on the inner side of the third bevel gear (34), the inner side of the third bevel gear (34) is divided into a plurality of slots by the protrusion (36), and matching telescopic blocks (38) are arranged at positions corresponding to the slots on both sides of the outer layer of the first bidirectional screw rod (18), and a first spring (37) is fixed on one side of the telescopic block (38) inside the first bidirectional screw rod (18).

9. A welding device suitable for metal material production according to claim 1, characterized in that: The cooling assembly (33) includes a mounting block (45) sleeved on one end of a mechanical arm (43), a grinding wheel (42) is rotatably connected to one end of the mounting block (45), and a liquid storage chamber (48) is provided inside the mounting block (45) at a position corresponding to the grinding wheel (42), a plurality of nozzles (49) are equidistantly fixed at one end of the liquid storage chamber (48) at a position corresponding to the grinding wheel (42), a piston (46) is fixed at one end of the mechanical arm (43) at a position corresponding to the liquid storage chamber (48), and a second spring (47) is symmetrically fixed between the mechanical arm (43) and both sides of the mounting block (45).

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