Auxiliary welding tool for copper joint
Through the combination of hydraulic pressure and high-frequency heating of the copper joint auxiliary welding tooling, the problem of unstable welding quality between large-diameter thick-walled copper pipes and copper joints was solved, and a stable welding effect was achieved.
Patent Information
- Application Number
- CN202422026594.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-08-21
AI Technical Summary
Existing technology makes it difficult to achieve stable welding between copper pipes with larger diameters, thicker walls, and higher heating temperatures and copper joints, resulting in unstable welding quality and failure to meet air tightness and high temperature resistance test requirements.
A copper joint auxiliary welding tool is used, including a bottom mounting plate, a hydraulic cylinder, a positioning column, a high-frequency heater and a heating ring. Through the combination of hydraulic pressure and high-frequency heating, the copper joint and the embedded copper pipe are accurately positioned and welded, and the annular gap is filled with a phosphor copper welding ring.
The stable welding of large-diameter thick-walled copper pipes and copper joints is achieved, meeting the air tightness and high-temperature resistance test requirements. The welding operation is simple and the quality is stable.
Smart Images
Figure CN223394585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of copper water jackets, in particular to an auxiliary welding tool for copper joints. Background Art
[0002] Copper water jacket, also known as cooling wall, is installed as cooling equipment in the main area of high heat flux intensity of metallurgical furnace to avoid damage due to overheating, which would force the furnace to be shut down for major repairs.
[0003] The cast copper water jackets required for three metallurgical furnaces purchased by our foreign customers utilize copper joints for the copper water jacket outlets. Currently, copper welding methods include gas welding, manual arc welding, manual argon arc welding, and carbon arc welding. These methods are only suitable for smaller-diameter, thinner-walled copper pipes, and require lower heating temperatures. However, they are not suitable for welding larger-diameter, thicker-walled pre-buried copper pipes to copper joints, which require higher heating temperatures. This makes the welds unable to pass the expected airtightness, high-temperature resistance, and destructive tests, making welding difficult and unstable. Utility Model Content
[0004] The purpose of the utility model is to provide a copper joint auxiliary welding tool to solve the above-mentioned defects caused by the prior art.
[0005] A copper joint auxiliary welding tool comprises a bottom mounting plate, a hydraulic cylinder 1, a positioning column, a hydraulic cylinder 2, a high-frequency heater and a heating ring. The hydraulic cylinder 1 is vertically mounted upward at the center of the bottom mounting plate, and the end of its piston rod is coaxially connected to a mounting seat through a flange. A mounting groove is provided in the center of the mounting seat, and the positioning column is coaxially connected to the mounting groove. The hydraulic cylinder 2 is vertically mounted upward at the edge of the bottom mounting plate, and the end of its piston rod is horizontally connected to the mounting plate through a flange 2. The high-frequency heater is horizontally mounted on the upper side of the mounting plate, and the heating ring is horizontally mounted at the end of the high-frequency heater, and the heating ring and the positioning column are coaxially distributed.
[0006] Preferably, the double-headed cylinder is horizontally installed on the lower side of the mounting plate, and is vertically connected to a movable plate at the end of its piston rod, a pair of C-shaped placement blocks are symmetrically provided on the left and right sides of the positioning column, a C-shaped placement groove is provided on the upper side of the placement block, a connecting strip is hinged between the placement block and the movable plate, a pair of connecting rods are vertically connected to the side of the placement block, a pair of L-shaped connecting frames are symmetrically connected to the upper side of the mounting plate, and the connecting rods on the same side are slidably connected to the connecting frames.
[0007] Preferably, brush bristles are evenly distributed on the wall of the placement groove, and a vibration motor is installed on the side of the connecting frame.
[0008] Preferably, a push-pull rod is mounted on the upper side of the mounting plate via a pair of flanges, and a plurality of universal wheels are evenly mounted on the lower side of the bottom mounting plate.
[0009] Compared with the prior art, the utility model has the following advantages:
[0010] The utility model is suitable for welding between pre-buried copper pipes and copper joints with larger diameters, thicker walls and higher heating temperatures for the copper pipes, so that the welds can meet the expected air tightness test, high temperature resistance test and destructive test. Not only is the welding easy to operate, but the welding quality is also stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.
[0012] Figure 2 It is a schematic structural diagram of the utility model as a whole when viewed from the front.
[0013] Figure 3 It is a structural diagram of the mounting base and the positioning column during assembly in the present invention.
[0014] Figure 4 This is a schematic structural diagram of the mounting base and positioning column in the present invention when they are separated.
[0015] Figure 5 It is a structural diagram of the heater in the present utility model.
[0016] Figure 6 This is a structural diagram of the placement block in the present utility model.
[0017] Figure 7 It is a structural schematic diagram of the copper water jacket in the present utility model.
[0018] in:
[0019] 11- bottom mounting plate; 12- hydraulic cylinder one; 13- flange one; 14- mounting seat; 14a- mounting groove; 15- positioning column; 16- hydraulic cylinder two; 17- flange two; 18- mounting plate; 19- high frequency heater; 20- heating ring; 21- double-headed cylinder; 22- moving plate; 23- placement block; 23a- placement groove; 24- coating bristles; 25- connecting strip; 26- connecting rod; 27- connecting frame; 28- vibration motor; 29- push-pull rod; 30- flange three; 31- universal wheel; 32- copper joint; 33- phosphor bronze welding ring; 34- copper water jacket; 35- copper matrix; 36- embedded copper pipe. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] like Figures 1 to 7 As shown, a copper joint auxiliary welding tool includes a bottom mounting plate 11, a hydraulic cylinder 12, a positioning column 15, a hydraulic cylinder 2 16, a high-frequency heater 19 and a heating ring 20. The hydraulic cylinder 12 is vertically upwardly installed at the center of the bottom mounting plate 11, and is coaxially connected to a mounting seat 14 at the end of its piston rod through a flange 13. A mounting groove 14a is provided at the center of the mounting seat 14. The positioning column 15 is coaxially connected to the mounting groove 14a. The hydraulic cylinder 2 16 is vertically upwardly installed at the edge of the bottom mounting plate 11, and is horizontally connected to a mounting plate 18 at the end of its piston rod through a flange 2 17. The high-frequency heater 19 is horizontally installed on the upper side of the mounting plate 18. The heating ring 20 is horizontally installed at the end of the high-frequency heater 19, and the heating ring 20 is coaxially distributed with the positioning column 15. First, the phosphor copper welding ring 33 coated with flux is put on the end of the embedded copper tube 36, and then the piston rod of the hydraulic cylinder 12 is extended and the positioning column 15 is driven to move upward, and then the copper joint 32 on the positioning column 15 is coaxially abutted against the end of the embedded copper tube 36, and then the piston rod of the hydraulic cylinder 2 is extended and the high-frequency heater 19 is driven to move upward, and then the heating ring 20 on the high-frequency heater 19 is coaxially transferred to the periphery of the copper joint 32, and finally, the high-frequency heater 19 cooperates with the heating ring 20 to electromagnetically heat the copper joint 32, the phosphor copper welding ring 33 and the end of the embedded copper tube 36, and the copper liquid after the phosphor copper welding ring 33 is melted is filled in the annular gap between the copper joint 32 and the embedded copper tube 36.
[0022] In this embodiment, the double-ended cylinder 21 is horizontally mounted on the underside of the mounting plate 18, with a movable plate 22 vertically connected to the end of its piston rod. A pair of C-shaped placement blocks 23 are symmetrically provided on the left and right sides of the positioning column 15. C-shaped placement grooves 23a are provided on the upper sides of the placement blocks 23. A connecting bar 25 is hingedly connected between the placement blocks 23 and the movable plate 22. A pair of connecting rods 26 are vertically connected to the sides of the placement blocks 23. A pair of L-shaped connecting brackets 27 are symmetrically connected to the upper side of the mounting plate 18. The connecting rods 26 on the same side are slidably connected to the connecting brackets 27. The piston rod of the double-ended cylinder 21 contracts and drives the placement blocks 23 on both sides to abut against each other. At the same time, the placement grooves 23a on both sides form a complete annular groove, which can be used to stack multiple phosphor bronze brazing rings 33.
[0023] In this embodiment, brush bristles 24 are evenly distributed on the wall of the placement groove 23a, and a vibration motor 28 is mounted on the side of the connecting frame 27. The brush bristles 24 can help temporarily store the flux in the placement groove 23a. At the same time, the vibration motor 28 can evenly apply the flux on the brush bristles 24 to the surfaces of the phosphor copper solder ring 33 and the end of the embedded copper tube 36.
[0024] In this embodiment, a push-pull rod 29 is installed on the upper side of the mounting plate 18 through a pair of flanges 30, and a plurality of universal wheels 31 are evenly installed on the lower side of the bottom mounting plate 11. The push-pull rod 29 and the universal wheels 31 facilitate the movement of the tooling.
[0025] The working principle of this copper joint auxiliary welding tool:
[0026] S1: Place the copper water jacket 34 horizontally on the tire frame using a lifting device, and align the end of the embedded copper tube 36 directly above the positioning column 15;
[0027] S2: The copper joint 32 is mounted on the top of the positioning column 15. The piston rod of the double-headed cylinder 21 is then retracted to drive the placement blocks 23 on both sides to abut against each other. At the same time, the placement grooves 23a on both sides form a complete annular groove. Multiple phosphorus copper welding rings 33 are then stacked and placed in the annular groove. A certain amount of flux is then poured onto the coating brush 24.
[0028] S3: The piston rod of the hydraulic cylinder 12 is extended and drives the positioning column 15 to move upward, thereby coaxially abutting the copper joint 32 on the positioning column 15 against the end of the embedded copper tube 36. Then, the piston rod of the hydraulic cylinder 2 is extended and drives the high-frequency heater 19 to move upward, thereby coaxially transferring the heating ring 20 on the high-frequency heater 19 to the periphery of the copper joint 32.
[0029] S4: The piston rod of the double-headed cylinder 21 contracts and drives the placement blocks 23 on both sides to move in opposite directions, and the phosphor bronze welding ring 33 is separated from the placement grooves 23a on both sides and falls to the top of the copper joint 32 under the action of gravity;
[0030] S5: The copper joint 32, the phosphor copper welding ring 33 and the end of the embedded copper tube 36 are electromagnetically heated by the high-frequency heater 19 in cooperation with the heating ring 20, and the copper liquid after the phosphor copper welding ring 33 is melted is filled in the annular space between the copper joint 32 and the embedded copper tube 36;
[0031] S6: The piston rod of the hydraulic cylinder 12 contracts and drives the positioning column 15 to move downward to separate the positioning column 15 from the copper joint 32 welded to the embedded copper tube 36, and the piston rod of the hydraulic cylinder 2 16 contracts and drives the placement block 23 to move downward to restore to the initial state;
[0032] S7: The copper water jacket 34 is placed horizontally on the ground by means of a hoisting device, and the copper water jacket 34 is air-cooled.
[0033] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.
Claims
1. A copper joint auxiliary welding tool, characterized by: The invention comprises a bottom mounting plate (11), a hydraulic cylinder 1 (12), a positioning column (15), a hydraulic cylinder 2 (16), a high-frequency heater (19) and a heating ring (20), wherein the hydraulic cylinder 1 (12) is vertically mounted upward at the center of the bottom mounting plate (11), and is coaxially connected to a mounting seat (14) at the end of its piston rod through a flange 1 (13), a mounting groove (14a) is provided at the center of the mounting seat (14), the positioning column (15) is coaxially connected to the mounting groove (14a), the hydraulic cylinder 2 (16) is vertically mounted upward at the edge of the bottom mounting plate (11), and is horizontally connected to a mounting plate (18) at the end of its piston rod through a flange 2 (17), the high-frequency heater (19) is horizontally mounted on the upper side of the mounting plate (18), the heating ring (20) is horizontally mounted at the end of the high-frequency heater (19), and the heating ring (20) and the positioning column (15) are coaxially distributed.
2. The copper joint auxiliary welding tool according to claim 1, characterized in that: The double-headed cylinder (21) is horizontally mounted on the lower side of the mounting plate (18) and is vertically connected to a movable plate (22) at the end of its piston rod. A pair of C-shaped placement blocks (23) are symmetrically provided on the left and right sides of the positioning column (15). A C-shaped placement groove (23a) is provided on the upper side of the placement block (23). A connecting strip (25) is hinged between the placement block (23) and the movable plate (22). A pair of connecting rods (26) are vertically connected to the side of the placement block (23). A pair of L-shaped connecting frames (27) are symmetrically connected to the upper side of the mounting plate (18). The connecting rods (26) on the same side are slidably connected to the connecting frames (27).
3. The copper joint auxiliary welding tool according to claim 2, characterized in that: Brush hairs (24) are evenly distributed on the groove wall of the placement groove (23a), and a vibration motor (28) is installed on the side of the connecting frame (27).
4. The copper joint auxiliary welding tool according to claim 1, characterized in that: A push-pull rod (29) is installed on the upper side of the mounting plate (18) through a pair of flanges (30), and a plurality of universal wheels (31) are evenly installed on the lower side of the bottom mounting plate (11).