A head component welding positioning device

Abstract

The application discloses a sealing head part welding positioning device, which comprises a chassis, an automatic sealing head welding machine is installed on the upper end of one side of the chassis, the automatic sealing head welding machine comprises a support, a driving assembly is arranged on the upper side of the support, a chuck is arranged on one side of the driving assembly, a welding frame is arranged on the upper end of the chassis close to the rear side, a positioning assembly is fixedly arranged on the outer side of one end of the chuck, a flange plate is clamped on the inner side of the chuck, an adjusting assembly is arranged on the upper end of the other side of the chassis, and a calibration assembly is arranged on the upper side of the adjusting assembly. The sealing head part welding positioning device is characterized in that the adjusting assembly, the calibration assembly and the butt joint assembly are matched with each other, the sealing head part and the flange plate are more conveniently positioned and butt jointed as a whole, the alignment accuracy is higher, the dependence on the technology of workers is reduced, and the sealing head part welding positioning device is more convenient to use.

Description

A welding positioning device for end cap components Technical Field

[0001] This invention relates to the field of head welding positioning technology, and in particular to a head component welding positioning device. Background Technology

[0002] An end cap is a component used to seal the end of a container, isolating it from the internal and external media; it is also called an end cover. End caps of cylindrical containers are generally rotating shells. According to the shape of their surface, end caps can be classified as convex, conical, flat, and combined types. A convex end cap refers to an end cap with a convex outer surface, such as hemispherical, elliptical, dished, and spherical end caps without folded edges. Some gas cylinders use combined bottom end caps with a convex surface facing inwards, which ensures both strength and safety requirements. Currently, when sealing flanges, the assembly of end caps is primarily done manually. However, this method of assembly presents challenges in aligning the end cap with the flange, making it difficult to ensure proper alignment. This reliance on manual skill can easily lead to poor alignment between the end cap and the cylinder, causing misalignment and resulting in low overall work efficiency. Summary of the Invention

[0003] The main objective of this invention is to provide a welding positioning device for end cap components, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A welding positioning device for end cap components includes a base frame. An automatic end cap welding machine is mounted on the upper end of one side of the base frame. The automatic end cap welding machine includes a support bracket. A drive assembly is mounted on the upper side of the support bracket. A chuck is mounted on one side of the drive assembly. A welding frame is mounted on the upper end of the base frame near the rear. A positioning component is fixedly mounted on one outer end of the chuck. A flange is clamped on the inner side of the chuck. An adjustment assembly is mounted on the upper end of the other side of the base frame. A calibration assembly is mounted on the upper side of the adjustment assembly. A positioning component is mounted on one side of the calibration assembly. The system includes a docking assembly, one side of which clamps a capping component. The adjusting assembly includes two sets of slide rails fixedly welded to the upper end of the base frame. A triangular frame is slidably mounted on the upper side of the two sets of slide rails. A fixing plate is welded to one end of the triangular frame near the two sets of slide rails. A positioning bolt is movably connected to the inner side of each of the two sets of fixing plates. A hollow disc is fixedly mounted on one upper end of the triangular frame. A circular block is movably mounted on the inner side of the hollow disc. A movable frame is fixedly mounted on one end of the circular block. Several sets of springs are fixedly connected to the circular block and the inner wall of the hollow disc.

[0006] Preferably, the positioning bolt is threaded to the fixing plate, and the hollow disc has an opening on the side near the movable frame.

[0007] Preferably, the calibration assembly includes a limiting ring movably disposed inside the upper side of the movable frame. One end of the limiting ring is fixedly provided with a pneumatic rod, and one end of the telescopic rod of the pneumatic rod is fixedly provided with a movable rod. A spiral strip is fixedly provided on the outer side of the movable rod. The other end of the limiting ring is fixedly provided with a spacer frame. Movable shafts are movably disposed around the inner side of the spacer frame. Arc-shaped frames are fixedly disposed on the outer side of the four sets of movable shafts. A pulley is movably disposed on one side of each of the four sets of arc-shaped frames. A gear is fixedly disposed at one end of each of the four sets of movable shafts. A T-shaped ring is fixedly disposed near the center of one end of the spacer frame. A toothed ring is fitted onto the outer side of the T-shaped ring, and an opening is provided on the inner side of the toothed ring corresponding to the position of the spiral strip.

[0008] Preferably, the telescopic rod of the air rod movably passes through the inside of the limiting ring and is connected to the movable rod. The movable rod movably passes through the inner side of the spacer frame. The spiral strip is adapted to the opening. The diameter of the central hole of the spacer frame is larger than the diameter of the movable rod. The toothed ring is respectively meshed with four sets of gears.

[0009] Preferably, the docking assembly includes a round rod frame fixedly mounted at one end of the spacer frame, a disc fixedly mounted at one end of the round rod frame, a fixing block fixedly mounted on the outer side of the movable rod near the gas spring, several sets of shaft frames fixedly mounted on the outer side of the fixing block, several sets of support rods fixedly mounted on the outer side of the disc, several sets of clamping rods movably connected to the upper side of the several sets of support rods, several sets of connecting rods movably connected to the several sets of shaft frames, several sets of connecting frames movably connected between the several sets of connecting rods and the several sets of clamping rods, a suction cup fixedly mounted at one end of the disc, a hollow groove formed on the inner side of the suction cup, and a piston fixedly mounted at one end of the movable rod near the inner side of the hollow groove.

[0010] Preferably, several sets of the shaft frame, support rod, clamping rod, connecting rod, and connecting frame are arranged in a ring. Each set of clamping rods has a fixing clip on one side. A sliding opening is provided on one side of the clamping rod corresponding to the connection of the connecting frame. The suction cup is sleeved on the outside of the movable rod. The piston is fitted against the inner wall of the hollow groove.

[0011] Preferably, the positioning component includes a fixing frame fixedly disposed at one end of the outer side of the chuck, a ring is provided on one side of the fixing frame, and a slide cylinder is movably disposed on the inner side of the ring.

[0012] Preferably, the slide cover is located outside the limiting ring, and the slide corresponds to the center position of the chuck.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The flange can be clamped by the chuck. The drive assembly drives the chuck to rotate, and the welding frame welds the flange and the end cap together. Before connecting the end cap, the positioning of the triangular frame and the two sets of slide rails can be locked or released by rotating the two sets of threaded positioning bolts. The circular block and the hollow plate are connected by several sets of springs to meet the position change of the upper support structure within a certain range when the calibration assembly is calibrated. At the same time, the limiting movement of the movable frame and the limiting ring is set to meet the requirements of the gap between the flange and the end cap when the drive assembly, chuck and welding frame are welded together.

[0015] 2. When it is necessary to install the end cap, by starting the air spring, the movable rod and the fixed block fixed on one side and several sets of shaft brackets on the outside of the fixed block are moved to one side. This will pull the connecting rods connected to the several sets of shaft brackets. By connecting several sets of connecting frames, the lower position of the clamping rod is pulled at the same time, so that the clamping plate on one side of the clamping rod clamps and positions the end cap.

[0016] 3. The piston, which is fixed at one end of the movable rod, is pulled to move in the hollow groove. Since the outer side of the end cap is attached to the suction cup when it is clamped, the end cap will be attracted by the suction cup when the piston is pulled, so as to further fix and stabilize it and improve the installation.

[0017] 4. The movable rod drives the spiral to move, and with the opening, it pushes the gear ring to rotate along the T-shaped ring. The gear ring meshes with four sets of gears, so the gears rotate in the opposite direction along the movable shaft. The four sets open, so the four sets of pulleys are respectively attached to the inner wall of the slide cylinder. After clamping, the end cap is aligned with the center position of the flange after being clamped by the chuck, thus achieving the purpose of center calibration and correction between the two.

[0018] 5. The calibration component is positioned and opened in the slide cylinder, which satisfies the requirement for precise positioning and mating of the end cap, as well as the sliding of the slide cylinder and the ring. After the docking component clamps the end cap, the adjustment component moves to make the end cap fit with the flange. Overall, it makes it easier to position and dock the end cap with the flange, while the alignment accuracy is higher, the dependence on the worker's skills is reduced, and it is more convenient to use. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a partial structural schematic diagram of the present invention;

[0021] Figure 3 is a partial cross-sectional view of the adjustment component of the present invention;

[0022] Figure 4 is a schematic diagram of the positioning component and partial structure of the present invention;

[0023] Figure 5 is a schematic diagram of the calibration component structure of the present invention;

[0024] Figure 6 is a rear-view exploded view of the calibration component of the present invention;

[0025] Figure 7 is a schematic diagram of the partially opened structure of the calibration component of the present invention;

[0026] Figure 8 is a schematic diagram of the docking component structure of the present invention;

[0027] Figure 9 is a schematic diagram of a partial cross-sectional structure of the docking component of the present invention.

[0028] In the diagram: 1. Base frame; 2. Automatic end cap welding machine; 21. Support; 22. Drive assembly; 23. Chuck; 24. Welding frame; 25. Positioning assembly; 251. Fixing frame; 252. Ring; 253. Slide cylinder; 3. Flange; 4. Adjustment assembly; 41. Slide rail; 42. Tripod; 43. Fixing plate; 44. Positioning bolt; 45. Hollow disc; 46. Round block; 47. Movable frame; 48. Spring; 5. Calibration assembly; 51. Limit ring; 52. 53. Pneumatic rod; 54. Spiral strip; 55. Air gap frame; 56. Movable shaft; 57. Arc frame; 58. Pulley; 59. Gear; 510. T-ring; 511. Gear ring; 512. Opening; 6. Connecting assembly; 61. Round rod frame; 62. Disc; 63. Fixing block; 64. Shaft frame; 65. Support rod; 66. Clamping rod; 67. Connecting rod; 68. Connecting frame; 69. Suction cup; 610. Hollow groove; 611. Piston; 7. End cap. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship as a relative relationship of orientation or position, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] Please refer to Figures 1-9. One embodiment of the present invention provides a welding positioning device for end cap components, including a base frame 1. An automatic end cap welding machine 2 is mounted on the upper end of one side of the base frame 1. The automatic end cap welding machine 2 includes a support 21, a drive assembly 22 is mounted on the upper side of the support 21, a chuck 23 is mounted on one side of the drive assembly 22, a welding frame 24 is mounted on the upper end of the base frame 1 near the rear, a positioning assembly 25 is fixedly mounted on one outer end of the chuck 23, a flange 3 is clamped on the inner side of the chuck 23, an adjustment assembly 4 is mounted on the upper end of the other side of the base frame 1, a calibration assembly 5 is mounted on the upper side of the adjustment assembly 4, a docking assembly 6 is mounted on one side of the calibration assembly 5, and a docking assembly 6 is mounted on one side of the docking assembly 6. The side clamp is provided with a head 7. The adjustment component 4 includes two sets of slide rails 41 fixedly welded to the upper end of the base frame 1. A triangular frame 42 is provided on the upper side of the two sets of slide rails 41 for limiting sliding. A fixing plate 43 is welded to one end of the triangular frame 42 near the two sets of slide rails 41. A positioning bolt 44 is movably connected to the inner side of the two sets of fixing plates 43. A hollow plate 45 is fixedly provided on the upper end of the triangular frame 42. A round block 46 is movably provided on the inner side of the hollow plate 45. A movable frame 47 is fixedly provided on one end of the round block 46. Several sets of springs 48 are fixedly connected to the round block 46 and the inner wall of the hollow plate 45. The positioning bolt 44 is threaded to the fixing plate 43. An movable opening is opened on the side of the hollow plate 45 near the movable frame 47.

[0032] The flange 3 can be clamped by the chuck 23. The drive assembly 22 drives the chuck 23 to rotate. With the help of the welding frame 24, the flange 3 and the end cap 7 are welded together. Before connecting the end cap 7, the two sets of positioning bolts 44 with threads can be rotated to lock or release the positioning of the tripod 42 and the two sets of slide rails 41. The circular block 46 and the hollow disk 45 are connected by several sets of springs 48 to meet the position change of the upper support structure within a certain range when the calibration assembly 5 is calibrated. At the same time, the limiting movement of the movable frame 47 and the limiting ring 51 realizes the requirement of rotating the chuck 23 to weld the gap between the flange 3 and the end cap 7 when the drive assembly 22, chuck 23 and welding frame 24 are working together.

[0033] The calibration component 5 includes a limiting ring 51 movably disposed inside the upper side of the movable frame 47. A pneumatic rod 52 is fixedly disposed at one end of the limiting ring 51. A movable rod 53 is fixedly disposed at one end of the telescopic rod of the pneumatic rod 52. A spiral strip 54 is fixedly disposed on the outer side of the movable rod 53. A spacer frame 55 is fixedly disposed at the other end of the limiting ring 51. Movable shafts 56 are movably disposed around the inner perimeter of the spacer frame 55. Arc-shaped frames 57 are fixedly disposed on the outer sides of the four sets of movable shafts 56. A pulley 58 is movably disposed on one side of each of the four sets of arc-shaped frames 57. One end of each of the four sets of movable shafts 56 is... A gear 59 is fixedly installed. A T-shaped ring 510 is fixedly installed near the center of one end of the spacer frame 55. A toothed ring 511 is fitted to the outer side of the T-shaped ring 510. An opening 512 is opened on the inner side of the toothed ring 511 corresponding to the position of the spiral strip 54. The telescopic rod of the air rod 52 moves through the inside of the limiting ring 51 and is connected to the movable rod 53. The movable rod 53 moves through the inner side of the spacer frame 55. The spiral strip 54 is adapted to the opening 512. The diameter of the central hole of the spacer frame 55 is larger than the diameter of the movable rod 53. The toothed ring 511 is respectively meshed with four sets of gears 59.

[0034] The movable rod 53 drives the spiral strip 54 to move, which, in conjunction with the setting of the opening 512, pushes the gear ring 511 to rotate along the T-shaped ring 510. The gear ring 511 meshes with four sets of gears 59, so that the gears 59 rotate in the opposite direction along the movable shaft 56. The four sets open, so that the four sets of pulleys 58 are respectively attached to the inner wall of the slide cylinder 253. After clamping, the end cap 7 is aligned with the center position of the flange 3 after being clamped by the chuck 23, thus achieving the purpose of center calibration and correction between the two.

[0035] The docking assembly 6 includes a round rod frame 61 fixedly mounted at one end of the air gap frame 55. A disc 62 is fixedly mounted at one end of the round rod frame 61. A fixing block 63 is fixedly mounted on the outer side of the movable rod 53 near the gas spring 52. Several sets of shaft frames 64 are fixedly mounted on the outer side of the fixing block 63. Several sets of support rods 65 are fixedly mounted on the outer side of the disc 62. Several sets of clamping rods 66 are movably connected to the upper side of the several sets of support rods 65. Several sets of connecting rods 67 are movably connected to the several sets of shaft frames 64. Several sets of connecting rods 67 are movably connected to the several sets of clamping rods 66. A suction cup 69 is fixedly installed at one end of the connecting frame 68 and the disc 62. A hollow groove 610 is opened on the inner side of the suction cup 69. A piston 611 is fixedly installed at one end of the movable rod 53 near the inner side of the hollow groove 610. Several sets of shaft frames 64, support rods 65, clamping rods 66, connecting rods 67, and connecting frame 68 are arranged in a ring. A fixing clip is provided on one side of each set of clamping rods 66. A sliding opening is opened on one side of the clamping rod 66 at the connection point of the connecting frame 68. The suction cup 69 is sleeved on the outside of the movable rod 53. The piston 611 is fitted against the inner wall of the hollow groove 610.

[0036] When the end cap 7 needs to be installed, the movable rod 53 and the fixed block 63 fixed on one side and several sets of shaft brackets 64 on the outside of the fixed block 63 are pulled to one side by starting the air rod 52. This will pull the connecting rod 67 connected to the several sets of shaft brackets 64. By connecting several sets of connecting brackets 68, the lower position of the clamping rod 66 is pulled at the same time, so that the clamping plate on one side of the clamping rod 66 clamps and positions the end cap 7. At the same time, the piston 611 fixed at one end of the movable rod 53 is pulled to move in the hollow groove 610. Since the outer side of the end cap 7 is in close contact with the suction cup 69 when clamped, the end cap 7 will be attracted by the suction cup 69 when the piston 611 is pulled, so as to further fix and stabilize it and improve the installation.

[0037] The positioning component 25 includes a fixing frame 251 fixedly disposed at one end of the outer side of the chuck 23. A ring 252 is provided on one side of the fixing frame 251. A slide cylinder 253 is movably disposed on the inner side of the ring 252. The slide cylinder 253 covers the outer side of the limiting ring 51 and corresponds to the center position of the chuck 23.

[0038] The calibration component 5 is positioned and opened in the slide cylinder 253 to meet the requirements of precise positioning and engagement of the end cap 7, as well as the sliding of the slide cylinder 253 and the ring 252. After the docking component 6 clamps the end cap 7, it moves in conjunction with the adjustment component 4 to make the end cap 7 fit with the flange 3. Overall, it makes it easier to position and dock the end cap 7 with the flange 3, while also achieving higher alignment accuracy, reducing the reliance on the worker's skills, and making it more convenient to use.

[0039] Working principle:

[0040] In use, the bracket 21, drive assembly 22, chuck 23, and welding frame 24 on the device are existing technical structures. The chuck 23 can clamp the flange 3, and the drive assembly 22 drives the chuck 23 to rotate. The welding frame 24 then welds the flange 3 and the end cap 7 together. Before connecting the end cap 7, the two sets of threaded positioning bolts 44 can be rotated to lock or release the positioning of the tripod 42 and the two sets of slide rails 41. The circular block 46 and the hollow disc 45 are connected by several sets of springs 48, ensuring that the upper support structure remains within a certain range during calibration of the calibration assembly 5. The positional changes within the enclosure, along with the limiting movement of the movable frame 47 and the limiting ring 51, fulfill the requirements for welding the gap between the welding flange 3 and the end cap 7 when the drive assembly 22, chuck 23, and welding frame 24 are coordinated. Additionally, when the end cap 7 needs to be installed, the actuation of the air spring 52 pulls the movable rod 53, the fixed block 63 on one side, and several sets of shaft brackets 64 on the outer side of the fixed block 63 to one side. This pulls the connecting rod 67 connected to the several sets of shaft brackets 64, and simultaneously pulls the lower position of the clamping rod 66 through the connection of several sets of connecting frames 68, causing one side of the clamping rod 66 to clamp the end cap 7. Positioning is achieved simultaneously, with the piston 611, fixed at one end of the movable rod 53, being pulled to move within the hollow groove 610. Since the outer side of the end cap 7 is in contact with the suction cup 69 when clamped, pulling the piston 611 will cause the suction cup 69 to hold the end cap 7 in place, further securing and stabilizing it, thus improving installation. Finally, the movable rod 53 drives the spiral strip 54 to move, which, in conjunction with the opening 512, pushes the gear ring 511 to rotate along the T-shaped ring 510. The gear ring 511 meshes with four sets of gears 59, causing the gears 59 to rotate in the opposite direction along the movable shaft 56, opening the four sets of pulleys 58. The head 7, after being clamped, is positioned on the inner wall of the slide cylinder 253. The chuck 23 clamps the flange 3 at its center, achieving center calibration and correction between the two. Meanwhile, the calibration component 5, positioned and opened within the slide cylinder 253, ensures precise positioning of the head 7 and facilitates the sliding of the slide cylinder 253 and the ring 252. This allows the docking component 6 to clamp the head 7, and the adjusting component 4 to move, ensuring the head 7 fits snugly against the flange 3. Overall, this makes positioning and docking of the head 7 and flange 3 easier, with higher alignment accuracy, reduced reliance on worker skills, and greater ease of use.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding positioning device for a head component, comprising a base frame (1), characterized in that: An automatic head welding machine (2) is installed on the upper side of one side of the base frame (1). The automatic head welding machine (2) includes a support (21). A drive assembly (22) is provided on the upper side of the support (21). A chuck (23) is provided on one side of the drive assembly (22). A welding frame (24) is provided on the upper end of the base frame (1) near the rear. A positioning assembly (25) is fixedly provided on one outer end of the chuck (23). A flange (3) is clamped on the inner side of the chuck (23). An adjustment assembly (4) is provided on the upper side of the other side of the base frame (1). A positioning assembly (25) is provided on the upper side of the adjustment assembly (4). The system includes a calibration component (5), a docking component (6) on one side of the calibration component (5), a head member (7) clamped on one side of the docking component (6), and an adjustment component (4) including two sets of slide rails (41) fixedly welded to the upper end of the base frame (1). A tripod (42) is provided on the upper side of the two sets of slide rails (41) for limiting sliding. A fixing plate (43) is welded to one end of the tripod (42) near the two sets of slide rails (41). A positioning bolt (44) is movably connected to the inner side of the two sets of fixing plates (43). A hollow plate (45) is fixedly provided on the upper end of the tripod (42). A circular block (46) is movably arranged on the inner side of (45). A movable frame (47) is fixedly arranged on one end of the circular block (46). Several sets of springs (48) are fixedly connected to the inner wall of the hollow disk (45). The calibration component (5) includes a limiting ring (51) movably arranged inside the upper side of the movable frame (47). A gas rod (52) is fixedly arranged on one end of the limiting ring (51). A movable rod (53) is fixedly arranged on one end of the telescopic rod of the gas rod (52). A spiral strip (54) is fixedly arranged on the outer side of the movable rod (53). A spacer is fixedly arranged on the other end of the limiting ring (51). The frame (55) has movable shafts (56) movably arranged around its inner perimeter. Arc-shaped frames (57) are fixedly arranged on the outer sides of the four sets of movable shafts (56). Pulleys (58) are movably arranged on one side of the four sets of arc-shaped frames (57). Gears (59) are fixedly arranged at one end of the four sets of movable shafts (56). A T-shaped ring (510) is fixedly arranged near the center of one end of the frame (55). A toothed ring (511) is fitted on the outer side of the T-shaped ring (510). An opening (512) is opened on the inner side of the toothed ring (511) corresponding to the position of the spiral strip (54).The docking assembly (6) includes a round rod frame (61) fixedly mounted at one end of the spacer frame (55), a disc (62) fixedly mounted at one end of the round rod frame (61), a fixing block (63) fixedly mounted on the outer side of the movable rod (53) near the gas rod (52), several sets of shaft frames (64) fixedly mounted on the outer side of the fixing block (63), several sets of support rods (65) fixedly mounted on the outer side of the disc (62), several sets of clamping rods (66) movably connected to the upper side of the several sets of support rods (65), and several sets of connecting rods (67) movably connected to the several sets of shaft frames (64). A number of connecting frames (68) are movably connected between the connecting rod (67) and a number of clamping rods (66). A suction cup (69) is fixedly installed at one end of the disc (62). A hollow groove (610) is opened on the inner side of the suction cup (69). A piston (611) is fixedly installed at one end of the movable rod (53) near the inner side of the hollow groove (610). The positioning assembly (25) includes a fixing frame (251) fixedly installed at one end of the outer side of the chuck (23). A ring (252) is provided on one side of the fixing frame (251). A slide cylinder (253) is movably installed on the inner side of the ring (252).

2. The welding positioning device for a head component according to claim 1, characterized in that: The positioning bolt (44) is threaded to the fixing plate (43), and the hollow plate (45) has an opening on the side near the movable frame (47).

3. The welding positioning device for a head component according to claim 1, characterized in that: The telescopic rod of the air rod (52) moves through the inside of the limiting ring (51) and is connected to the movable rod (53). The movable rod (53) moves through the inside of the partition frame (55). The spiral strip (54) is adapted to the opening (512). The diameter of the central hole of the partition frame (55) is larger than the diameter of the movable rod (53). The toothed ring (511) is respectively meshed with four sets of gears (59).

4. The welding positioning device for a head component according to claim 1, characterized in that: Several sets of shaft brackets (64), support rods (65), clamping rods (66), connecting rods (67), and connecting frames (68) are arranged in a ring. Each set of clamping rods (66) has a fixed clamping piece on one side. A sliding opening is provided at the connection point of the clamping rod (66) and the connecting frame (68). The suction cup (69) is sleeved on the outside of the movable rod (53). The piston (611) is fitted against the inner wall of the hollow groove (610).

5. The welding positioning device for a head component according to claim 1, characterized in that: The slide cylinder (253) is positioned outside the limiting ring (51), and the slide cylinder (253) corresponds to the center position of the chuck (23).

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