Welding device for fire-fighting steel cylinder
By designing an automated welding device, the automatic welding of fire cylinders is achieved using gripping, pressing, and welding components. This solves the problem of low production efficiency caused by manual feeding in existing technologies and realizes mechanized continuous operation of the fire cylinder welding process.
Patent Information
- Application Number
- CN202520681759.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-11
AI Technical Summary
The existing fire cylinder welding equipment requires manual feeding, resulting in low production efficiency.
An automated welding device was designed, comprising a gripping component, a pressing component, a welding component, and a transfer box. This device enables automated welding of fire cylinders through a mechanized production line, utilizing an automated welding robot and a chain conveyor for the automatic docking and welding of the cylinder body, upper end cap, and lower end cap.
This technology enables mechanized and continuous operation of the fire cylinder welding process, improving production efficiency and solving the problem of low efficiency caused by manual material feeding in existing technologies.
Smart Images

Figure CN223833928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a welding device for fire cylinders, belonging to the field of fire cylinder production technology. Background Technology
[0002] In the production of fire extinguisher cylinders, each cylinder consists of a body, an upper end cap, and a lower end cap. During assembly, a welding machine is required to weld the upper and lower end caps to both ends of the cylinder body. Existing welding devices for fire extinguisher cylinders, such as the cylinder welding frame disclosed in utility model patent CN217071373U, while capable of welding fire extinguisher cylinders, suffer from low production efficiency due to the need for manual loading and assembly. Therefore, it is necessary to develop a new welding device to address the aforementioned problems with existing welding methods for fire extinguisher cylinders. Summary of the Invention
[0003] The purpose of this utility model is to provide a welding device for fire cylinders that is compact in structure and ingenious in design, so as to solve the problem of low production efficiency of existing welding methods for fire cylinders.
[0004] The technical solution of this utility model is:
[0005] A welding device for fire cylinders includes a gripping component A, a gripping component B, a pressing component, a welding component, and a transfer box; characterized in that: a welding component is provided on one side of the pressing component; a transfer box is connected to the welding component and the pressing component via a chain conveyor; gripping component A is installed above the pressing component and the chain conveyor; and gripping component B is installed above the welding component and the chain conveyor.
[0006] The two ends of the transfer box are provided with clamping and clearance grooves.
[0007] The pressing assembly includes a bottle body conveyor, a guide slide, an upper sealing head feeder, a lower sealing head feeder, and a positioning seat; one end of the bottle body conveyor is equipped with a guide slide; a pusher plate is mounted on the bottle body conveyor above the guide slide via a pusher cylinder; a positioning seat is mounted below the guide slide; an upper sealing head feeder is mounted on one side of the positioning seat, and a lower sealing head feeder is mounted on the other side of the positioning seat.
[0008] The positioning seat includes an arc-shaped support and a limiting baffle; two sets of arc-shaped supports are symmetrically arranged on one side of the limiting baffle.
[0009] The upper and lower end cap feeders include a feeding conveyor belt, gripping claws, a feeding plate, and a positioning cylinder. One end of the feeding conveyor belt is equipped with a positioning plate. A gripping position is provided on the positioning plate. One end of the positioning plate is equipped with a feeding plate via a positioning cylinder. A transverse slide is slidably mounted on one side of the positioning plate via a base and a screw mechanism. A lifting slider is mounted on the transverse slide via a lifting cylinder. A gripping claw is mounted on the lifting slider via a rotating cylinder.
[0010] The welding assembly includes an assembly base, an automatic welding robot, an extrusion sleeve, and a drive motor; the assembly base is symmetrically equipped with transverse sliding blocks via transverse cylinders; the transverse sliding blocks are equipped with extrusion sleeves via drive motors; and two sets of automatic welding robots are symmetrically equipped on one side of the transverse sliding blocks.
[0011] The extrusion sleeve is symmetrically provided with extrusion relief openings.
[0012] Both gripping components A and B include a frame, a control cylinder, a longitudinal slide, a lifting cylinder, upper and lower sliding seats, and clamping slide bars. The longitudinal slide is mounted on the frame via the control cylinder. The upper and lower sliding seats are mounted on the longitudinal slide via the lifting cylinder and guide slide bars. Two sets of clamping slide bars are symmetrically mounted on the upper and lower sliding seats via guide rails. A control screw is mounted between the clamping slide bars via a screw motor. The control screw is connected to the corresponding clamping slide bar. When the control screw rotates forward, the clamping slide bars move closer together. When the control screw rotates in the reverse direction, the clamping slide bars separate.
[0013] The advantages of this utility model are:
[0014] The welding device for fire cylinders is compact and ingeniously designed, enabling mechanized and continuous welding of fire cylinders. This solves the problem of low production efficiency in existing welding methods for fire cylinders and is particularly suitable for the needs of fire cylinder welding. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the present invention after removing gripping component A and gripping component B;
[0018] Figure 4 This is a schematic diagram of the press-fit assembly of this utility model;
[0019] Figure 5 This is a schematic diagram of the upper sealing head feeder of this utility model;
[0020] Figure 6This is a schematic diagram of the welding assembly of this utility model;
[0021] Figure 7 This is a schematic diagram of the structure of the gripping component B of this utility model.
[0022] In the diagram: 1. Pressing assembly; 2. Welding assembly; 3. Chain conveyor; 4. Transfer box; 5. Gripping assembly A; 6. Gripping assembly B; 7. Gripping clearance groove; 8. Bottle body conveyor; 9. Guide slide; 10. Push cylinder; 11. Push plate; 12. Positioning seat; 13. Upper cap feeder; 14. Lower cap feeder; 15. Arc support; 16. Limit baffle; 17. Feeding conveyor belt; 18. Positioning plate; 19. Gripping position; 20. Positioning cylinder; 21. Feeding unit. 21. Plate; 22. Base; 23. Screw mechanism; 24. Lateral slide; 25. Lifting cylinder; 26. Lifting slider; 27. Rotary cylinder; 28. Gripping claw; 29. Assembly base; 30. Lateral cylinder; 31. Control screw; 32. Drive motor; 33. Extrusion sleeve; 34. Automatic welding robot; 35. Extrusion clearance opening; 36. Frame; 37. Control cylinder; 38. Longitudinal slide; 39. Lifting cylinder; 40. Upper and lower slides; 41. Clamping slide bar; 42. Screw motor. Detailed Implementation
[0023] The welding device for the fire cylinder includes gripping component A5, gripping component B6, pressing component 1, welding component 2, and transfer box 4 (see instruction manual appendix). Figure 1 and 2 ).
[0024] The pressing assembly 1 includes a bottle body conveyor 8, a guide slide 9, an upper sealing head feeder 13, a lower sealing head feeder 14, and a positioning seat 12. One end of the bottle body conveyor 8 is equipped with the guide slide 9; a pusher plate 11 is mounted on the bottle body conveyor 8 above the guide slide 9 via a pusher cylinder 10. The bottle body conveyor 8 is an externally purchased component; during operation, it conveys the components of the fire extinguisher cylinders.
[0025] When the bottle conveyor 8 delivers the bottle to the guide slide 9 during operation, the pusher cylinder 10 can push the bottle onto the guide slide 9 via the pusher plate 11, and under its guidance, the bottle rolls onto the positioning seat 12.
[0026] A positioning seat 12 is installed below the guide slide 9 (see the instruction manual appendix). Figure 4 The positioning seat 12 includes an arc-shaped support 15 and a limiting baffle 16; two sets of arc-shaped supports 15 are symmetrically arranged on one side of the limiting baffle 16 (see the instruction manual appendix). Figure 4 The curvature of the curved opening of the curved support 15 matches the curvature of the bottle's circumference. Thus, when the bottle rolls onto the curved support 15, the curved support 15 can provide support for the bottle through the curved opening.
[0027] The upper sealing head feeder 13 is mounted on one side of the positioning seat 12, and the lower sealing head feeder 14 is mounted on the other side of the positioning seat 12 (see the instruction manual appendix). Figure 4 ).
[0028] Upper end cap feeder 13 and lower end cap feeder 14; including feeding conveyor belt 17, gripper 28, feeding plate 21 and positioning cylinder 20 (see instruction manual appendix) Figure 5 ).
[0029] A positioning plate 18 is installed at one end of the feeding conveyor belt 17; a gripping position 19 is provided on the positioning plate 18; a feeding plate 21 is installed at one end of the positioning plate 18 via a positioning cylinder 20. A transverse slide 24 is slidably mounted on one side of the positioning plate 18 via a base 22 and a lead screw mechanism 23; a lifting slider 26 is mounted on the transverse slide 24 via a lifting cylinder 25; a gripping claw 28 is mounted on the lifting slider 26 via a rotary cylinder 27.
[0030] During operation, after the workpiece is conveyed to the positioning plate 18 by the feeding conveyor belt 17, the positioning cylinder 20 can push the workpiece to the gripping position 19 through the feeding plate 21. Subsequently, with the cooperation of the lead screw mechanism 23, the lifting cylinder 25 and the rotating cylinder 27, the gripping claw 28 can grab the workpiece from the gripping position 19 and drive it to move along the trajectory.
[0031] The pressing assembly 1 has a welding assembly 2 on one side (see the instruction manual). Figure 1 and 2 Welding assembly 2 includes an assembly base 29, an automated welding robot 34, an extrusion sleeve 33, and a drive motor 32 (see the attached instruction manual). Figure 6 ).
[0032] A transverse slide 24 is symmetrically mounted on the mounting base 29 via a transverse cylinder 30; a compression sleeve 33 is mounted on the transverse slide 24 via a drive motor 32; compression clearance openings 35 are symmetrically arranged on the compression sleeve 33 (see the instruction manual appendix). Figure 6 Two sets of automatic welding robots 34 are symmetrically mounted on one side of the transverse slide 24. During operation, the extrusion sleeve 33 clamps the workpiece from both ends, and with the cooperation of the drive motor 32, the extrusion sleeve 33 can drive the workpiece to rotate freely. During the rotation of the workpiece, the automatic welding robot 34 can complete the welding work.
[0033] Welding assembly 2 and pressing assembly 1 are connected by a chain conveyor 3 and a transfer box 4 (see instruction manual appendix). Figure 3The transfer box 4 has clamping clearance grooves 7 at both ends. During operation, the gripping component A5 can clamp the workpiece from the positioning seat 12 and place it in the transfer box 4. The purpose of setting the clamping clearance grooves 7 is to allow the gripping slide rod 41 of the gripping component A5 to clamp the workpiece from both ends, and then place the workpiece onto the transfer box 4 through the clamping clearance grooves 7. Subsequently, the transfer box 4 can move the workpiece to complete the transfer operation.
[0034] A gripping assembly A5 is mounted above the pressing assembly 1 and the chain conveyor 3; a gripping assembly B6 is mounted above the welding assembly 2 and the chain conveyor 3 (see the instruction manual appendix). Figure 1 and 2 ).
[0035] Both gripping components A5 and B6 include a frame 36, a control cylinder 37, a longitudinal slide 38, a lifting cylinder 39, upper and lower sliding seats 40, and a clamping slide bar 41 (see the instruction manual appendix). Figure 7 ).
[0036] A longitudinal slide 38 is mounted on the frame 36 via a control cylinder 37; an upper and lower slide block 40 is mounted on the longitudinal slide block 38 via a lifting cylinder 39 and a guide slide rod; two sets of clamping slide rods 41 are symmetrically mounted on the upper and lower slide blocks 40 via guide rails; a control screw 31 is mounted between the clamping slide rods 41 via a screw motor 42; the control screw 31 is connected to the corresponding clamping slide rod 41; when the control screw 31 rotates forward, the clamping slide rods 41 move closer together; when the control screw 31 rotates in the reverse direction, the clamping slide rods 41 separate. During operation, the clamping slide rods 41, with the cooperation of the control cylinder 37, the screw motor 42, and the lifting cylinder 39, can complete the workpiece transfer.
[0037] When the welding device for the fire cylinder is in operation, the cylinder conveyor 8 first transports the cylinder body to the guide slide 9, and then the pusher cylinder 10 pushes the cylinder body onto the guide slide 9 through the pusher plate 11, and under its guidance, it rolls onto the positioning seat 12.
[0038] After the bottle rolls onto the positioning seat 12, the feeding conveyor belt 17 of the upper sealing head feeder 13 transports the upper sealing head to the positioning plate 18. Subsequently, the positioning cylinder 20 pushes the workpiece to the gripping position 19 via the feeding plate 21. Then, with the cooperation of the screw mechanism 23, the lifting cylinder 25, and the rotating cylinder 27, the gripping claw 28 can grip the upper sealing head from the gripping position 19 and drive the upper sealing head to rotate so that it corresponds to one end of the bottle body. At the same time, the lower sealing head feeder 14 will grip the lower sealing head via the gripping claw 28 and drive the lower sealing head to rotate so that it corresponds to the other end of the bottle body.
[0039] When the lower and upper end caps are aligned with the two ends of the bottle body, the screw mechanisms 23 of the upper end cap feeder 13 and the lower end cap feeder 14 are activated, enabling the gripping claws 28 to drive the lower end caps to be inserted into the two ends of the bottle body. After the lower and upper end caps are inserted into the two ends of the bottle body, they will form an integral structure with the bottle body, i.e., a pre-assembled fire-fighting cylinder.
[0040] After the upper end cap feeder 13 and lower end cap feeder 14 complete the assembly of the pre-assembled fire cylinders, they will reset and enter the next work cycle. Subsequently, the gripping assembly A5 clamps the pre-assembled fire cylinders from both ends using the clamping slide bar 41, and then places the pre-assembled fire cylinders onto the transfer box 4 through the gripping clearance groove 7. The chain conveyor 3 then moves the transfer box 4 to a position corresponding to the welding assembly 2.
[0041] Once the transfer box 4 moves to correspond with the welding assembly 2, the gripping assembly B65, via the clamping slide 41, picks up the pre-assembled fire cylinder from the transfer box 4 and places it between the compression sleeves 33 of the welding assembly 2. At this time, the clamping slide 41 corresponds to the compression clearance opening 35 on the compression sleeve 33. Subsequently, the transverse cylinder 30 moves the compression sleeve 33 via the transverse slide 24, causing the compression sleeve 33 to clamp and fix the pre-assembled fire cylinder from both ends. Then, the gripping assembly B65 resets.
[0042] After the extrusion sleeve 33 clamps and secures the pre-assembled fire cylinder, the drive motor 32 drives the pre-assembled fire cylinder to rotate freely through the extrusion sleeve 33. During the free rotation of the pre-assembled fire cylinder, the automatic welding robot 34 completes the welding work. At this point, the welding device for the fire cylinder has completed the welding work. After the fire cylinder is welded, the gripping component B65 transfers the welded cylinder to the next process, and the welding device for the fire cylinder can then enter the next production process.
[0043] The welding device for fire cylinders is compact and ingeniously designed, enabling mechanized and continuous welding of fire cylinders. This solves the problem of low production efficiency in existing welding methods for fire cylinders and is particularly suitable for the needs of fire cylinder welding.
Claims
1. A welding device for fire cylinders, comprising a gripping assembly A (5), a gripping assembly B (6), a pressing assembly (1), a welding assembly (2), and a transfer box (4); characterized in that: A welding assembly (2) is provided on one side of the pressing assembly (1); a transfer box (4) is installed between the welding assembly (2) and the pressing assembly (1) via a chain conveyor (3); a gripping assembly A (5) is installed above the pressing assembly (1) and the chain conveyor (3); a gripping assembly B (6) is installed above the welding assembly (2) and the chain conveyor (3).
2. The welding device for fire cylinders according to claim 1, characterized in that: The two ends of the transfer box (4) are provided with clamping clearance grooves (7).
3. The welding device for fire-fighting cylinders according to claim 1, characterized in that: The pressing assembly (1) includes a bottle body conveyor (8), a guide slide (9), an upper sealing head feeder (13), a lower sealing head feeder (14), and a positioning seat (12); one end of the bottle body conveyor (8) is equipped with a guide slide (9); a pusher plate (11) is mounted on the bottle body conveyor (8) above the guide slide (9) via a pusher cylinder (10); a positioning seat (12) is mounted below the guide slide (9); an upper sealing head feeder (13) is mounted on one side of the positioning seat (12), and a lower sealing head feeder (14) is mounted on the other side of the positioning seat (12).
4. The welding device for fire cylinders according to claim 3, characterized in that: The positioning seat (12) includes an arc-shaped support (15) and a limiting baffle (16); two sets of arc-shaped supports (15) are symmetrically arranged on one side of the limiting baffle (16).
5. The welding device for fire-fighting cylinders according to claim 3, characterized in that: The upper end feeder (13) and lower end feeder (14) include a feeding conveyor belt (17), a gripper (28), a feeding plate (21), and a positioning cylinder (20). One end of the feeding conveyor belt (17) is equipped with a positioning plate (18). A gripping position (19) is provided on the positioning plate (18). One end of the positioning plate (18) is equipped with a feeding plate (21) via the positioning cylinder (20). A transverse slide (24) is slidably mounted on one side of the positioning plate (18) via a base (22) and a screw mechanism (23). A lifting slider (26) is mounted on the transverse slide (24) via a lifting cylinder (25). A gripper (28) is mounted on the lifting slider (26) via a rotating cylinder (27).
6. The welding device for fire cylinders according to claim 1, characterized in that: The welding assembly (2) includes an assembly base (29), an automatic welding robot (34), an extrusion sleeve (33), and a drive motor (32); the assembly base (29) is symmetrically equipped with a transverse slide (24) via a transverse cylinder (30); the transverse slide (24) is equipped with an extrusion sleeve (33) via a drive motor (32); and two sets of automatic welding robots (34) are symmetrically equipped on one side of the transverse slide (24).
7. The welding device for fire-fighting cylinders according to claim 6, characterized in that: The extrusion sleeve (33) is symmetrically provided with extrusion relief openings (35).
8. The welding device for fire-fighting cylinders according to claim 1, characterized in that: Both the gripping component A (5) and gripping component B (6) include a frame (36), a control cylinder (37), a longitudinal slide (38), a lifting cylinder (39), an upper and lower slide (40), and a clamping slide (41). The frame (36) is equipped with a longitudinal slide (38) via the control cylinder (37). The longitudinal slide (38) is equipped with an upper and lower slide (40) via the lifting cylinder (39) and a guide slide. Two sets of clamping slides (41) are symmetrically mounted on the upper and lower slides (40) via guide rails. A control screw (31) is mounted between the clamping slides (41) via a screw motor (42). The control screw (31) is connected to the corresponding clamping slide (41). When the control screw (31) rotates in the forward direction, the clamping slides (41) move closer together. When the control screw (31) rotates in the reverse direction, the clamping slides (41) separate from each other.
Citation Information
Patent Citations
Steel cylinder butt welding frame for fire extinguisher production
CN217071373U