Large-specification low-heat input welding device
By designing a large-standard low-line energy welding device, pulse welding and continuous welding switching of argon arc welding machine is solved, and the welding efficiency and quality are improved.
Patent Information
- Application Number
- CN202411968418.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-02-18
AI Technical Summary
Traditional methods of welding titanium alloy corner welds require manual control of the current and voltage between the welding material and the workpiece, resulting in poor welding consistency and prone to discoloration or unfused welds.
A large-standard low-line energy welding device is designed, and the argon arc welding machine can achieve two working states: pulse welding and continuous welding by adjusting the control knob, improving the consistency of welding forming.
The consistency of welding forming is achieved, the operation complexity and artificial errors during the welding process are reduced, and the welding efficiency and quality are improved.
Smart Images
Figure CN119457335A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a large-size low-line energy welding device, belonging to the technical field of welding. Background Art
[0002] The traditional method of welding titanium alloy fillet welds is to manually control the conduction time of the current and voltage between the welding material and the workpiece. This control requires certain operating experience. The consistency of manual control is not ideal. The short conduction time of the switch causes discoloration or unfusion of the weld, which affects the welding effect. Summary of the invention
[0003] In order to overcome the deficiencies of the prior art, the present invention provides a large-scale low-line energy welding device, which can enable an ordinary argon arc welding machine to obtain two working states, pulse welding and continuous welding, by adjusting the control knob, thereby improving the consistency of welding formation.
[0004] The technical solution adopted by the present invention to solve its technical problems is: a large-standard low-line energy welding device, including an intermediate relay a, an intermediate relay b, a time relay, a conversion switch, an emergency stop switch, a welding work switch, a 1# welding terminal quick aviation connector I, a 1# welding terminal quick aviation connector II, a 2# welding terminal quick aviation connector I, a 2# welding terminal quick aviation connector II and a regulated DC power supply, the intermediate relay a includes a contact switch a and a coil a, the intermediate relay b includes a contact switch b and a coil b, the time relay includes a contact switch and a coil, the 2# welding terminal quick aviation connector I and the 2# welding terminal quick aviation connector II are respectively connected to the two ends of the entire control circuit, the 2# welding terminal quick aviation connector I is connected to the negative electrode of the power supply, the 2# welding terminal quick aviation connector I is connected to the No. 10 line, and the 2# welding terminal quick aviation connector II is connected to the positive electrode of the power supply; the negative electrode of the power supply and the negative electrode of the power supply form a group of power sockets, and the negative electrode of the power supply and the negative electrode of the power supply are respectively connected to the output positive electrode and the output negative electrode of the regulated DC power supply.
[0005] 2# welding terminal quick aviation connector II is connected to the emergency stop switch through line ①, the emergency stop switch is connected to 1# welding terminal quick aviation connector I through line ②, 1# welding terminal quick aviation connector I is connected to the welding working switch through line ③, the welding working switch is connected to 1# welding terminal quick aviation connector II through line ④, 1# welding terminal quick aviation connector II is connected to the contact switch of the time relay through another line ④, the contact switch is connected to coil a of the intermediate relay a through line ⑤, and coil a is connected to line ⑩.
[0006] The branch line of line ② is provided with lines ⑥, ⑦ and ⑧ in parallel. Line ⑥ is provided with contact switch a of intermediate relay a and contact switch b of intermediate relay b. The end of line ⑥ is connected to line ④ between 1# welding terminal quick aviation connector II and the contact switch.
[0007] Line ⑦ is provided with a conversion switch and coil b of intermediate relay b, and coil b is connected to line ⑩; line ⑧ is provided with contact switch a of intermediate relay a and contact switch b of intermediate relay b, contact switch a is connected to the coil of time relay through line ⑨, and the coil is connected to line ⑩.
[0008] Furthermore, the regulated DC power supply is provided with a circuit breaker QF1 and a circuit breaker QF2.
[0009] The beneficial effects of the present invention are as follows: the present invention has a wide range of applications, and the adjustment process is very flexible and convenient. It only requires the toggle switch to be turned. The present welding device can respectively realize the switching between pulse welding and continuous welding using the same common argon arc welding machine, so that one argon arc welding machine can obtain two working states, pulse and continuous welding, thereby improving the welding forming consistency; the manufacturing cost of the welding platform is relatively low, and the control circuit obtains a 24V power supply from the control transformer in the welding machine without changing the original design concept of the welding machine. The capacity is controlled within the rated range, and there is no need to purchase new parts, thus saving costs; the operation process is safe and reliable, and the low voltage is conducive to the safe and reliable production and operation of the operator. The device is provided with a circuit breaker protector, which can It effectively protects against overvoltage, undervoltage and short circuit. The device adds interlock protection and interlock protection to further improve the protection of operators during the use of the argon arc welding machine. This will not affect the original design requirements, nor the performance of the welding machine, and will not cause any damage to the welding machine. The connection between the welding machine and the control box and the control trolley adopts a special quick plug for the welding machine. The plug is reliable, safe and practical. The welding device can also realize welding of the same type of welding materials with different wire diameters. The welding device has strong versatility and can replace various welding materials to realize the rapid replacement of welding materials for multiple varieties and small batches of products. It can realize the welding of various carbon steels, alloy steels, stainless steels, titanium alloys and other welding materials, and has broad market prospects for application. BRIEF DESCRIPTION OF THE DRAWINGS The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.
[0010] Figure 1 It is a control circuit schematic diagram of the present invention.
[0011] Figure 2 It is the SA switch action sequence table of the present invention.
[0012] Figure 3 It is a schematic diagram of power conversion of the present invention.
[0013] Figure 4 It is a schematic diagram of switching the working mode of the present invention.
[0014] Numbers in the figure: 1. Intermediate relay a, 101, contact switch a, 102, coil a, 2. Intermediate relay b, 201, contact switch b, 202, coil b, 3. Time relay, 301, contact switch, 302, coil, 4. Transfer switch, 5. Emergency stop switch, 6. Welding work switch, 7. 1# welding terminal quick aviation connector, 8. 1# welding terminal quick aviation connector II, 9. 2# welding terminal quick aviation connector I, 10. 2# welding terminal quick aviation connector II, 11. Negative pole of power supply, 12. Positive pole of power supply, 13. Regulated DC power supply. DETAILED DESCRIPTION
[0015] like Figure 1 As shown in FIG. 4, a large-scale low-line energy welding device includes an intermediate relay a1, an intermediate relay b2, a time relay 3, a conversion switch 4, an emergency stop switch 5, a welding work switch 6, a 1# welding terminal quick aviation connector Ⅰ7, a 1# welding terminal quick aviation connector Ⅱ8, a 2# welding terminal quick aviation connector Ⅰ9, a 2# welding terminal quick aviation connector Ⅱ10 and a regulated DC power supply 12, the intermediate relay a1 includes a contact switch a101 and a coil a102, the intermediate relay b2 includes a contact switch b201 and a coil b202, the time relay 3 It includes a contact switch 301 and a coil 302, wherein the 2# welding terminal quick aviation connector I9 and the 2# welding terminal quick aviation connector II10 are respectively connected to the two ends of the entire control circuit, the 2# welding terminal quick aviation connector I9 is connected to the negative pole of the power supply 11, the 2# welding terminal quick aviation connector I9 is connected to the No. 10 line, and the 2# welding terminal quick aviation connector II10 is connected to the positive pole of the power supply 12; the negative pole of the power supply 11 and the negative pole of the power supply 12 form a group of power sockets, and the negative pole of the power supply 12 and the negative pole of the power supply 11 are respectively connected to the output positive pole and the output negative pole of the regulated DC power supply 13.
[0016] 2# welding terminal quick aviation connector Ⅱ10 is connected to emergency stop switch 5 through line ①, emergency stop switch 5 is connected to 1# welding terminal quick aviation connector Ⅰ7 through line ②, 1# welding terminal quick aviation connector Ⅰ7 is connected to welding working switch 6 through line ③, welding working switch 6 is connected to 1# welding terminal quick aviation connector Ⅱ8 through line ④, 1# welding terminal quick aviation connector Ⅱ8 is connected to contact switch 301 of time relay 3 through another line ④, contact switch 301 is connected to coil a102 of intermediate relay a1 through line ⑤, and coil a102 is connected to line ⑩.
[0017] The branch line of line ② is provided with lines ⑥, ⑦ and ⑧ in parallel. Line ⑥ is provided with contact switch a101 of intermediate relay a1 and contact switch b201 of intermediate relay b2. The end of line ⑥ is connected to line ④ between 1# welding terminal quick aviation connector Ⅱ8 and contact switch 301.
[0018] Line ⑦ is provided with a switching switch 4 and a coil b202 of an intermediate relay b2, and coil b202 is connected to line ⑩; line ⑧ is provided with a contact switch a101 of an intermediate relay a1 and a contact switch b201 of an intermediate relay b2, and contact switch a101 is connected to the coil 302 of the time relay 3 via line ⑨, and coil 302 is connected to line ⑩.
[0019] The voltage-stabilized DC power supply 13 is provided with a circuit breaker QF1 and a circuit breaker QF2. The circuit breaker QF1 is a main power switch, and the circuit breaker QF2 belongs to a control power supply.
[0020] The working principle of this large standard low line energy welding device: Press the welding work button SB2 (welding work switch 6), the welding work relay (intermediate relay a1) will be powered on, and the welder will start welding. After the set time, the circuit will disconnect the power supply of the welding work relay (intermediate relay a1), causing the welder to stop working. Through the above principle, further implementation in practice will result in two working states: pulse welding and continuous welding. The schematic diagram is shown in the attached figure. Figure 1 shown.
[0021] Pulse welding: Press and hold the welding work button SB2 (welding work switch 6), the welding work relay KA1 (intermediate relay a1) is energized and works, and the KA1 normally open switch is closed under the action of electromagnetic force, so that the welder starts welding; when the set time is reached, the KT normally closed contact (contact switch 301) is disconnected under the action of electromagnetic force, and after the KA1 coil (coil a102) loses power, the KA1 normally open contact is disconnected, and the circuit will disconnect the power supply of the welding work relay KA1 (intermediate relay a1), stop the welding work, and at the same time, the timing relay (time relay 3) will also be de-energized and restored to the original state ; Since the working button SB2 (welding working switch 6) is pressed, the welding working relay KA1 (intermediate relay a1) will be energized again, the normally open contact of KA1 will close, and the welding machine will weld again; when the set time is reached again, the normally closed contact of the time relay KT (contact switch 301) will be disconnected, and the welding working relay KA1 (intermediate relay a1) will disconnect the power again to stop welding; the timing relay KT (contact switch 301) will be reset, and the cycle will be repeated in sequence to obtain a pulse welding state; the size of the welding pulse can be changed by setting the on and off time of the timing relay KT.
[0022] Continuous welding: When the pulse / continuous welding switch SA (switch 4) is in the on state, the argon arc welder is in the continuous welding state; only the welding working relay KA2 (intermediate relay b2) is energized and working, and the other relays are disconnected. When the working button SB2 (welding working switch 6) is pressed, the welding working relay KA2 (intermediate relay b2) is energized and working, and the normally closed contact of KA2 is disconnected, so that the KA1 self-locking circuit is disconnected; when the working button SB2 (welding working switch 6) is released, the welding working relay KA1 (intermediate relay a1) is de-energized and stops working. If the working button SB2 (welding working switch 6) is pressed, the welding working relay KA1 (intermediate relay a1) will be energized all the time, and the welding machine will continue to weld until the working button SB2 (welding working switch 6) is released to stop the continuous welding work.
[0023] The power supply of this device is a 220V / 24V portable regulated DC power supply (regulated DC power supply 13), which has the characteristics of small size, easy to move and carry, and convenient to take electricity due to its popularity. The working voltage is 24V safe voltage, and the operation process is safer and more reliable. Figure 3 Shown is a schematic diagram of power conversion for a large-scale low-line energy welding device.
[0024] The KA1 normally open contact is connected to the electric welder to control the operation of the electric welder, and the continuous and pulse modes are switched by controlling the SA pulse / continuous welding switch (switch 4).
Claims
1. A large-scale low-line energy welding device, characterized in that: The invention comprises an intermediate relay a (1), an intermediate relay b (2), a time relay (3), a transfer switch (4), an emergency stop switch (5), a welding work switch (6), a 1# welding terminal quick aviation connector I (7), a 1# welding terminal quick aviation connector II (8), a 2# welding terminal quick aviation connector I (9), a 2# welding terminal quick aviation connector II (10) and a regulated DC power supply (13). The intermediate relay a (1) comprises a contact switch a (101) and a coil a (102). The intermediate relay b (2) comprises a contact switch b (201) and a coil b (202). The time relay (3) comprises a contact switch (301) and coil (302), the 2# welding terminal quick aviation connector I (9) and the 2# welding terminal quick aviation connector II (10) are respectively connected to the two ends of the entire control circuit, the 2# welding terminal quick aviation connector I (9) is connected to the negative electrode of the power supply (11), the 2# welding terminal quick aviation connector I (9) is connected to the No. 10 line, and the 2# welding terminal quick aviation connector II (10) is connected to the positive electrode of the power supply (12); the negative electrode of the power supply (11) and the negative electrode of the power supply (12) form a group of power sockets, and the negative electrode of the power supply (12) and the negative electrode of the power supply (11) are respectively connected to the output positive electrode and the output negative electrode of the regulated DC power supply (13); The 2# welding terminal quick aviation connector II (10) is connected to the emergency stop switch (5) via line ①, the emergency stop switch (5) is connected to the 1# welding terminal quick aviation connector I (7) via line ②, the 1# welding terminal quick aviation connector I (7) is connected to the welding working switch (6) via line ③, the welding working switch (6) is connected to the 1# welding terminal quick aviation connector II (8) via line ④, the 1# welding terminal quick aviation connector II (8) is connected to the contact switch (301) of the time relay (3) via another line ④, the contact switch (301) is connected to the coil a (102) of the intermediate relay a (1) via line ⑤, and the coil a (102) is connected to line ⑩; The branch line of line ② is provided with line ⑥, line ⑦ and line ⑧ in parallel relationship, and line ⑥ is provided with contact switch a (101) of intermediate relay a (1) and contact switch b (201) of intermediate relay b (2), and the end of line ⑥ is connected to line ④ between 1# welding terminal quick aviation connector II (8) and contact switch (301); A conversion switch (4) and a coil b (202) of an intermediate relay b (2) are provided on line ⑦, and the coil b (202) is connected to line ⑩; a contact switch a (101) of an intermediate relay a (1) and a contact switch b (201) of an intermediate relay b (2) are provided on line ⑧, and the contact switch a (101) is connected to a coil (302) of a time relay (3) via line ⑨, and the coil (302) is connected to line ⑩.
2. A large-scale low-line energy welding device according to claim 1, characterized in that: The voltage-stabilized DC power supply (13) is provided with a circuit breaker QF1 and a circuit breaker QF2.