Automatic welding equipment

Abstract

The utility model relates to automatic welding equipment, and relates to the related technical field of welding equipment, the automatic welding equipment comprises a lathe bed, a mounting rack and a fixing seat coaxial with the mounting rack, the fixing seat is provided with a positioning assembly, a welding gun is arranged between the fixing seat and the mounting rack, the welding gun is connected with an adjusting assembly, the mounting rack is provided with a jacking assembly, and the jacking assembly is provided with a clamping assembly. The jacking rod slidably penetrates through the mounting frame, the jacking head is connected to the end, away from the mounting frame, of the jacking rod and is hollow, the first air cylinder is arranged at the end, away from the fixing base, of the mounting frame and connected with the jacking rod, and a vent hole is formed in the side wall of the end, close to the first air cylinder, of the jacking head; the jacking head is connected with a ventilation pipe internally filled with inert gas at the position of the ventilation hole, and a plurality of air holes communicating with the interior of the jacking head are formed in the end, away from the first air cylinder, of the jacking head in the circumferential direction. The device has the effects that in the workpiece welding process, the inert gas environment is formed around the workpiece welding position, and the stability of the workpiece welding structure is improved.

Description

Technical Field

[0001] The present application relates to the field of welding equipment related technologies, and in particular to automatic welding equipment. Background Art

[0002] Metal welding is a manufacturing or sculpting process for joining metals. During welding, the workpiece and filler metal are melted or unmelted, creating a direct weld. Pressure is often applied to join the parts. Welding can be done using a variety of energy sources, including gas flame, arc, laser, electron beam, friction, and ultrasonic. Besides its use in factories, welding can also be performed in a variety of environments, including the field, underwater, and in space.

[0003] Currently, automated welding technology is often used for welding workpieces in factory production. This machine-assisted welding not only reduces the error tolerance but also speeds up the welding process. However, existing welding equipment cannot isolate the weld from the air, exposing the weld to oxygen and water vapor. This reduces weld tightness and compromises the strength of the joint. Utility Model Content

[0004] In order to avoid the situation where the welding position is exposed to oxygen and water vapor during the process of welding workpieces with automatic welding equipment, resulting in insufficient structural strength of the welding position, the present application provides an automatic welding equipment.

[0005] The automatic welding equipment provided in this application adopts the following technical solution:

[0006] The adjusting base is connected to the fixing base and the adjusting screw is connected to the fixing base, and the adjusting screw is connected to the fixing base, the adjusting screw being connected to the fixing base and the fixing screw being connected to the fixing base.

[0007] By adopting the above technical solution, when it is necessary to weld the workpiece, the positioning assembly located on the fixed seat fixes the workpiece to be welded, and then the first cylinder on the mounting frame drives the tightening rod and the tightening head connected to the tightening rod to move together and tighten the weldment. At this time, the equipment introduces inert gas into the tightening head through the vent hole on the tightening head, and then the inert gas is discharged through the air outlet and fills the area around the welding position, forming an air-isolated environment, effectively preventing the welding position from being invaded by oxygen and water vapor, and improving the structural strength of the workpiece after welding.

[0008] Optionally, the positioning assembly includes a lower limit block integrally connected to the fixed seat, an upper limit block hinged to the lower limit block at one end, and a positioning sleeve assembly rotatably set on the fixed seat and used to clamp the workpiece, and the upper arc groove and lower arc groove are respectively provided on the side where the upper limit block and the lower limit block are close to each other, and the upper arc groove and the lower arc groove can be combined to form a complete circular mounting groove, and the positioning sleeve assembly is rotatably set in the mounting groove.

[0009] By adopting the above technical solution, the upper limit block and the lower limit block are hinged, which makes it more convenient to place the workpiece, and improves the convenience of equipment operation. At the same time, the upper arc groove and the lower arc groove jointly limit the positioning sleeve assembly, thereby improving the stability of the structure. The positioning sleeve assembly is placed between the upper arc groove and the lower arc groove, which can tightly fix the positioning sleeve assembly and prevent the workpiece from shaking during welding.

[0010] Optionally, the positioning sleeve assembly includes an upper mold sleeve and a lower mold sleeve which are rotatably arranged in the upper arc groove and the lower arc groove respectively. The upper mold sleeve and the lower mold sleeve have the same shape and can be joined into a cylindrical structure. The fixed seat is provided with a driving structure for driving the positioning sleeve assembly to rotate.

[0011] By adopting the above technical solution, the workpiece can be prevented from shaking inside the positioning sleeve assembly, which affects the welding results. At the same time, since the positioning sleeve assembly is rotatably arranged inside the structure formed by the upper arc groove and the lower arc groove, the welding gun can weld the welding position of the workpiece along the circumferential direction, thereby improving the integrity of the welding structure. When the workpiece needs to be placed or removed, the upper die sleeve and the lower die sleeve are respectively connected to the upper limit block and the lower limit block, which will not affect the placement and removal of the workpiece.

[0012] Optionally, two docking pins are symmetrically and integrally provided on one side of the lower mold sleeve close to the upper mold sleeve, and the upper mold sleeve is symmetrically provided with two docking holes that respectively match the sizes of the two docking pins.

[0013] By adopting the above technical solution, when the upper die sleeve and the lower die sleeve abut against each other, the two can rotate more conveniently under the action of the driving structure, avoiding the situation where the structure becomes loose during the rotation process.

[0014] Optionally, the driving structure includes an upper gear sleeve and a lower gear sleeve respectively integrally connected to the upper mold sleeve and the lower mold sleeve, and a servo motor fixedly arranged on the side of the fixed seat away from the lower limit block, and the output shaft fixing sleeve of the servo motor is provided with a docking gear, and the docking gear is engaged with both the upper gear sleeve and the lower gear sleeve.

[0015] By adopting the above technical solution, the upper gear sleeve and the lower gear sleeve are combined into a complete external gear structure. At this time, the two are engaged with the docking gear. Under the drive of the servo motor, the upper gear sleeve and the lower gear sleeve move together around the axis, which improves the degree of automation of the equipment and facilitates the welding operation of the welding gun on the workpiece.

[0016] Optionally, the adjustment assembly includes an adjustment seat fixedly mounted on the bed, a first vertical plate arranged on the adjustment seat, a second vertical plate slidingly arranged on the first vertical plate along the length direction, a second cylinder fixedly mounted on the top of the second vertical plate, the output shaft of the second cylinder is connected to a mounting plate, and a clamp for clamping the welding gun is rotatably arranged on the mounting plate.

[0017] By adopting the above technical solution, the adjustment seat can adjust the position of the welding gun on the bed to facilitate more convenient welding of the workpiece. The purpose of designing the second cylinder in this application is that during the process of picking up and placing the workpiece, the welding can be moved to other positions to avoid obstruction to the picking up and placing operation of the workpiece.

[0018] Optionally, a sliding rod is fixedly provided on a side of the second vertical plate close to the welding gun, and the mounting plate is slidably connected to the sliding rod.

[0019] By adopting the above technical solution, the welding gun can move more smoothly, avoiding the danger caused by shaking of the welding gun during movement, and at the same time reducing the load of the second cylinder to a certain extent.

[0020] Optionally, the size of the cross section of the air outlet gradually increases along the axis toward the fixing seat.

[0021] By adopting the above technical solution, the inert gas can be discharged from the air outlet to the surrounding area of ​​the welding position more quickly to expel the air around the welding position, making it easier for the inert gas to fill the environment around the welding position and improve the welding quality of the equipment welding workpiece.

[0022] Optionally, the inert gas is argon.

[0023] By adopting the above technical solution, argon can prevent the welded parts from being oxidized and nitrided by air. Compared with other gases, argon has more stable properties.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This application introduces argon gas into the tightening head, so that the argon gas fills the space around the welding position during the welding process, thereby preventing the workpiece from being invaded by oxygen and water vapor during welding, thereby improving the welding quality;

[0026] 2. This application provides an upper limit block and a lower limit block that are hinged to each other, making it more convenient to place or remove the workpiece from the device, thereby improving the ease of operation of the device.

[0027] 3. This application provides an upper die sleeve and a lower die sleeve that are rotatably connected to the upper limit block and the lower limit block respectively, so that the welding gun of the equipment can automatically perform complete welding on the circumference of the welding position, making the welding structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of an automatic welding device in this application.

[0029] Figure 2 yes Figure 1 Magnified view at point A in the middle.

[0030] Figure 3 yes Figure 1 Cross-sectional view at AA in the middle.

[0031] Figure 4 This is a structural view of a positioning component of an automatic welding device of the present application.

[0032] Figure 5 yes Figure 3 Magnified view at point B.

[0033] Figure 6 This is a structural view of an adjustment component of an automatic welding device of the present application.

[0034] Explanation of the accompanying drawings: 1. Bed; 2. Mounting frame; 3. Fixed seat; 4. Welding gun; 5. Positioning assembly; 51. Lower limit block; 52. Upper limit block; 53. Mounting groove; 531. Upper arc groove; 532. Lower arc groove; 54. Positioning sleeve assembly; 541. Upper die sleeve; 5411. Docking hole; 542. Lower die sleeve; 5421. Docking pin; 6. Tightening assembly; 61. Tightening rod; 62. Tightening head; 621. Vent; 622. Vent pipe; 623. Vent; 63. First cylinder; 7. Driving structure; 71. Servo motor; 72. Upper gear sleeve; 73. Lower gear sleeve; 74. Docking gear; 8. Adjusting assembly; 81. Adjusting seat; 82. First vertical plate; 83. Second vertical plate; 831. Sliding rod; 84. Second cylinder; 85. Mounting plate; 86. Clamp. DETAILED DESCRIPTION

[0035] Reference Figure 1 An automatic welding device includes a bed 1 for mounting a welding structure, a mounting frame 2 detachably mounted on the bed 1, a fixing base 3 fixedly mounted on the bed 1 along the length of the mounting frame 2, and a welding gun 4 movably mounted on the bed 1 between the mounting frame 2 and the fixing base 3. The fixing base 3 is provided with a positioning assembly 5 coaxial with the mounting frame 2 for clamping a workpiece. The mounting frame 2 is provided with a tightening assembly 6 for tightening the welded part to achieve pressure welding and improve the structural strength of the workpiece after welding.

[0036] Reference Figure 2 and Figure 3 Specifically, the tightening assembly 6 includes a tightening rod 61 that is slidably inserted into the middle part of the mounting frame 2 along the axial direction, a tightening head 62 connected to the end of the tightening rod 61 away from the mounting frame 2, and a first cylinder 63 fixedly mounted on the side of the mounting frame 2 away from the fixed seat 3. The end of the telescopic rod of the first cylinder 63 is fixedly connected to the tightening rod 61, and is used to drive the tightening rod 61 to slide along the axis of the mounting frame 2. The tightening head 62 is hollow inside and has a vent hole 621 connected to the inside of the tightening head 62 on the side wall near the end of the first cylinder 63, and a vent pipe 622 is installed at the position of the vent hole 621. The vent pipe 622 and the tightening head 62 are both filled with inert gas. A plurality of air outlet holes 623 are circumferentially opened on the end of the tightening head 62 away from the first cylinder 63, which are connected to the inside of the tightening head 62, so that when the equipment is working, the inert gas can be smoothly discharged to the surrounding area of ​​the welding position.

[0037] Preferably, the cross-sectional area of ​​the gas outlet hole 623 gradually increases along the axis toward the fixing seat 3, so that during the operation of the equipment, the inert gas can diffuse to the surroundings of the welding position more quickly, thereby improving the welding quality.

[0038] Preferably, the inert gas used in this application is argon. This is because argon provides protection during the welding process, preventing the intrusion of oxygen and water vapor, further improving weld quality. Argon also helps the metal workpiece cool more quickly after welding, preventing heat from lingering in the weld area for extended periods.

[0039] Reference Figure 4 and Figure 5Furthermore, the positioning assembly 5 includes a lower limit block 51 integrally provided on the fixed seat 3 and an upper limit block 52 hinged to the lower limit block 51 at one end. The upper limit block 52 is identical in shape and structure to the lower limit block 51, and the two can be completely fitted together through a hinged structure to form a complete clamping structure. Specifically, an upper arc groove 531 and a lower arc groove 532 of a semi-arc structure are respectively provided on the side where the upper limit block 52 and the lower limit block 51 are close to each other, and the upper arc groove 531 and the lower arc groove 532 are identical in size and shape. When the upper limit block 52 and the lower limit block 51 are fitted together, the upper arc groove 531 and the lower arc groove 532 fit together and together form a circular mounting groove 53 structure.

[0040] Reference Figure 3 and Figure 4 Furthermore, a positioning sleeve assembly 54 is detachably and rotatably disposed within the mounting groove 53 formed by the upper arc groove 531 and the lower arc groove 532. The positioning sleeve assembly 54 includes an upper die sleeve 541 and a lower die sleeve 542, each of which is a semi-arc structure and rotatably disposed within the upper arc groove 531 and the lower arc groove 532, respectively. The upper die sleeve 541 and the lower die sleeve 542 have the same shape and can be fitted together to form a complete cylindrical structure for clamping the workpiece to be welded.

[0041] Reference Figure 3 and Figure 5 The fixed seat 3 is provided with a driving structure 7 for driving the positioning sleeve assembly 54 to rotate, including a servo motor 71 fixedly mounted on the bottom side of the fixed seat 3, an upper gear sleeve 72 integrally provided on the upper die sleeve 541, and a lower gear sleeve 73 integrally provided on the lower die sleeve 542. The upper gear sleeve 72 and the lower gear sleeve 73 form a complete gear structure when the upper die sleeve 541 and the lower die sleeve 542 are fitted together. The fixed sleeve at the end of the output shaft of the servo motor 71 is provided with a docking gear 74. The docking gear 74 is meshed with both the upper gear sleeve 72 and the lower gear sleeve 73, so that when the upper gear sleeve 72 and the lower gear sleeve 73 are fitted together, the servo motor 71 can drive the upper die sleeve 541 and the lower die sleeve 542 and the workpiece clamped by the two to rotate through the meshing structure between the upper gear sleeve 72, the lower gear sleeve 73 and the docking gear 74, thereby realizing automatic circumferential welding of the workpiece.

[0042] Reference Figure 3 and Figure 5 Furthermore, two docking pins 5421 are symmetrically provided on one side of the lower mold sleeve 542 close to the upper mold sleeve 541 to prevent relative movement between the upper mold sleeve 541 and the lower mold sleeve 542 during rotation. Two docking holes 5411 are symmetrically provided on the upper mold sleeve 541. The two docking holes 5411 correspond to the two docking pins 5421 one by one, and the docking pins 5421 are movably fitted into the docking holes 5411.

[0043] Reference Figure 3 and Figure 6 Furthermore, the welding gun 4 is connected to an adjustment assembly 8 mounted on the bed 1 and used to adjust the position of the welding gun 4. The adjustment assembly 8 includes an adjustment base 81 fixedly mounted on the bed 1 for adjusting the horizontal position of the welding gun 4, a first vertical plate 82 disposed on the adjustment base 81, and a second vertical plate 83 slidably disposed on the first vertical plate 82. A second cylinder 84 with a telescopic rod facing the first vertical plate 82 is fixedly mounted on the top of the second vertical plate 83. The telescopic rod of the second cylinder 84 is fixedly mounted to a mounting plate 85, and a clamping jaw 86 for clamping the welding gun 4 is rotatably disposed on the mounting plate 85.

[0044] Reference Figure 6 Furthermore, a slide bar 831 is integrally provided on the second vertical plate 83, and the mounting plate 85 is slidably provided on the slide bar 831 to provide a more stable support structure for the mounting plate 85 and the clamping claw 86 connected to the mounting plate 85.

[0045] It should be noted that, in the present application, the second vertical plate 83 and the cylinder are only used to facilitate moving the welding gun 4 away from the welding position when the welding gun 4 is not working, and do not adjust the welding position.

[0046] The implementation principle of an automatic welding device in the embodiment of the present application is as follows:

[0047] After separating the upper and lower stoppers 52 and 51, place the workpiece to be welded. The first air cylinder 63 is then activated. This drives the clamping rod 61 and clamping head 62 to move, causing the end of the clamping head 62 to abut the workpiece. The second air cylinder 84 is then activated, moving the welding gun 4 to the designated welding position. Finally, the welding gun 4 is activated and the workpiece is welded.

[0048] During this process, the vent pipe 622 introduces argon gas into the tightening head 62 through the vent hole 621, and then the argon gas is released to the surrounding of the welding position through the outlet hole 623, forming an isolated environment to prevent oxygen and water vapor from corroding the welding process.

[0049] When the welding gun 4 welds the workpiece, the servo motor 71 drives the upper module and the lower module to rotate together through the meshing structure between the upper gear sleeve 72, the lower gear sleeve 73 and the docking gear 74, and drives the workpiece to rotate to achieve circumferential welding of the workpiece.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic welding device, comprising a bed (1), a mounting frame (2) arranged on the bed (1), and a fixed seat (3) arranged on the bed (1) and coaxial with the mounting frame (2), wherein a gap is provided between the fixed seat (3) and the mounting frame (2), a positioning assembly (5) for fixing a workpiece is provided on the fixed seat (3), a welding gun (4) is provided between the fixed seat (3) and the mounting frame (2), and the welding gun (4) is connected to an adjustment assembly (8) installed on the bed (1) and used to adjust the position of the welding gun (4), characterized in that: The mounting frame (2) is provided with a tightening assembly (6) for tightening the welded parts, and the tightening assembly (6) includes a tightening rod (61) slidably inserted into the mounting frame (2), a tightening head (62) connected to the tightening rod (61) at one end away from the mounting frame (2) and having a hollow interior, and a first cylinder (63) provided at one end of the mounting frame (2) away from the fixing seat (3) and connected to the tightening rod (61), a vent hole (621) is provided on the side wall of one end of the tightening head (62) close to the first cylinder (63), a vent pipe (622) with inert gas inside the tightening head (62) is connected to the vent hole (621), and a plurality of air outlet holes (623) connected to the interior of the tightening head (62) are circumferentially provided at the end of the tightening head (62) away from the first cylinder (63).

2. The automatic welding equipment according to claim 1, characterized in that: The positioning assembly (5) comprises a lower limit block (51) integrally connected to the fixing seat (3), an upper limit block (52) hinged at one end to the lower limit block (51), and a positioning sleeve assembly (54) rotatably arranged on the fixing seat (3) and used for clamping a workpiece, wherein a semicircular upper arc groove (531) and a lower arc groove (532) are respectively provided on a side where the upper limit block (52) and the lower limit block (51) are close to each other, and the upper arc groove (531) and the lower arc groove (532) can be combined to form a complete circular mounting groove (53), and the positioning sleeve assembly (54) is rotatably arranged in the mounting groove (53).

3. The automatic welding equipment according to claim 2, characterized in that: The positioning sleeve assembly (54) includes an upper die sleeve (541) and a lower die sleeve (542) which are rotatably arranged in the upper arc groove (531) and the lower arc groove (532), respectively. The upper die sleeve (541) and the lower die sleeve (542) have the same shape and can be joined into a cylindrical structure. A driving structure (7) for driving the positioning sleeve assembly (54) to rotate is arranged on the fixing seat (3).

4. The automatic welding equipment according to claim 3, characterized in that: Two docking pins (5421) are symmetrically provided on one side of the lower die sleeve (542) close to the upper die sleeve (541), and two docking holes (5411) are symmetrically provided on the upper die sleeve (541) and the sizes of the two docking pins (5421) are matched respectively.

5. The automatic welding equipment according to claim 3, characterized in that: The driving structure (7) comprises an upper gear sleeve (72) and a lower gear sleeve (73) which are integrally connected to the upper die sleeve (541) and the lower die sleeve (542), respectively, and a servo motor (71) fixedly arranged on a side of the fixing seat (3) away from the lower limit block (51); the output shaft fixing sleeve of the servo motor (71) is provided with a docking gear (74), and the docking gear (74) is meshed with both the upper gear sleeve (72) and the lower gear sleeve (73).

6. The automatic welding equipment according to claim 1, characterized in that: The adjustment assembly (8) comprises an adjustment seat (81) fixedly mounted on the bed (1), a first vertical plate (82) arranged on the adjustment seat (81), a second vertical plate (83) slidably arranged on the first vertical plate (82) along the length direction, a second cylinder (84) fixedly mounted on the top end of the second vertical plate (83), an output shaft of the second cylinder (84) connected to a mounting plate (85), and a clamping claw (86) for clamping the welding gun (4) rotatably arranged on the mounting plate (85).

7. The automatic welding equipment according to claim 6, characterized in that: A sliding rod (831) is fixedly provided on one side of the second vertical plate (83) close to the welding gun (4), and the mounting plate (85) is slidably connected to the sliding rod (831).

8. The automatic welding equipment according to claim 1, characterized in that: The cross-sectional dimensions of the air outlet hole (623) gradually increase along the axis toward the fixing seat (3).

9. The automatic welding equipment according to claim 1, characterized in that: The inert gas is argon.

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