Open-close type eddy current welding equipment

Abstract

The invention relates to the technical field of welding equipment, in particular to open-close type eddy current welding equipment which comprises a base and an induction coil, a mechanical arm is installed on the base, a welding seat is arranged at the end of the mechanical arm, two mounting seats are movably connected to the welding seat, each mounting seat comprises two contact surfaces facing the other mounting seat, and the contact surfaces face the other mounting seat. The induction coil comprises two arc-shaped wire sets, the two arc-shaped wire sets are installed in the two installation bases respectively, and the two arc-shaped wire sets are spliced to form the induction coil capable of being conducted. The manipulator drives the welding base to move to the workpiece position, and the two mounting bases are separated and located on the two sides of the workpiece. The complete induction coil is split into two movable sections through the manipulator and the movable mounting seat, so that a workpiece can be sleeved in the induction coil for heating in a manner of moving and splicing the induction coil, the workpiece does not need to be moved, and the use is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and in particular to an open-close eddy current welding equipment. Background Art

[0002] Eddy current welding is a welding technology that uses the principle of electromagnetic induction. Eddy current welding equipment uses electromagnetic induction to generate eddy currents inside the material in the induction coil. The Joule heat generated by these eddy currents increases the temperature of the material itself. It can be used for heating in metal smelting, surface heat treatment, induction brazing, etc.

[0003] For related technology, reference may be made to Chinese patent publication number CN111515511A, which discloses an eddy current welding method, providing two workpieces to be welded, inserting the ends of the workpieces to be welded into an eddy current coil, and passing a welding current through the eddy current coil to perform eddy current welding on the two workpieces.

[0004] When the above welding method is used, the workpiece needs to be placed in an eddy current coil for heating. However, some workpieces are inconvenient to move due to their size or position. When the workpiece needs to be welded using this contactless eddy current welding method, the above welding method is inconvenient to use. Summary of the invention

[0005] In order to facilitate welding of workpieces that are inconvenient to move, the present application provides an open-and-close eddy current welding device.

[0006] The present application provides an open-close eddy current welding device that adopts the following technical solution: An open-and-close eddy current welding device comprises a base and an induction coil, wherein a manipulator for controlling the displacement of the induction coil is mounted on the base, a welding seat is arranged at the end of the manipulator, two mounting seats are movably connected to the welding seat, each mounting seat comprises two contact surfaces facing the other mounting seat, movement of the mounting seat can drive the contact surfaces of the two mounting seats to fit together or separate, the induction coil comprises a two-petal arc wire group, the two-petal arc wire group are respectively mounted in the two mounting seats, a plurality of contact holes for accommodating the ends of the arc wire group are arranged on the contact surface, the two ends of the arc wire group are respectively located on the two contact surfaces of a mounting seat, and the two-petal arc wire group is spliced ​​to form a conductive induction coil.

[0007] By adopting the above technical solution, the manipulator drives the welding seat to move to the workpiece position, and the two mounting seats are separated and located on both sides of the workpiece. The two mounting seats are close to each other until the two mounting seats are fitted. At this time, the two halves of the arc wire group are connected to each other to form a complete induction coil, and the workpiece is wrapped in the inner circle of the induction coil. At this time, the induction coil is energized to heat and weld the workpiece. Through the manipulator and the movable mounting seat, a complete induction coil is split into two movable halves, so that the workpiece can be sleeved inside the induction coil for heating by moving and splicing the induction coil, without moving the workpiece, which is convenient to use.

[0008] Preferably, the mounting seat comprises a male seat and a female seat. A plurality of insulating pressing sheets are evenly arranged in the circumferential direction of the contact hole of the female seat, the insulating pressing sheets and the female seat are connected by a reinforcing spring, and a connecting gap is formed between the insulating pressing sheets and the end of the arc-shaped wire group in the female seat; A number of arc-shaped conductive sheets are provided in the contact hole of the male seat, one end of the conductive sheet wraps the end of the arc-shaped wire group in the male seat, and the other end points to the female seat and faces the connection gap. When the reinforcing spring is in a natural state, the distance of the connection gap is less than the thickness of the conductive sheet.

[0009] By adopting the above technical solution, when the two-lobed arc wire group is spliced, the ends of the arc wire group are in contact with each other. In addition, the conductive sheet on the male seat is inserted into the connection gap, and the insulating pressing sheet presses the conductive sheet tightly against the end of the arc wire group of the female seat. The other end of the conductive sheet is connected to the conductive sheet in the male seat. At this time, the two-lobed arc wire group is not only in contact with each other at the end faces, but also connected on the side through the conductive sheet, which increases the contact area, thereby enhancing the conductivity and conductive capacity.

[0010] Preferably, two insulating frames are slidably connected in the male socket, the sliding direction of the two insulating frames is the same as that of the male socket, the two insulating frames are respectively located in the two contact surfaces of the male socket, and the end of the conductive sheet away from the female socket is connected to the insulating frame.

[0011] By adopting the above technical solution, when the male seat moves toward the female seat to prepare for bonding, the insulating frame slides in the male seat, driving the conductive sheet to extend from the contact hole for easy insertion into the contact hole of the female seat. When the male seat moves away from the female seat, the insulating frame moves in the direction to retract the conductive sheet into the contact hole to protect the conductive sheet.

[0012] Preferably, the insulating frame includes an insulating rod connected to the conductive sheet, the insulating rod is located on the side of the conductive sheet away from the arc wire group, a resistance spring is provided between the insulating rod and the conductive sheet, and when the resistance spring is in a natural state, the conductive sheet resists the arc wire group.

[0013] By adopting the above technical solution, the conductive sheet is always tightly attached to the arc wire group of the male seat under the action of the resistance spring, thereby ensuring the conductivity between the conductive sheet and the arc wire group.

[0014] Preferably, a welding screw is rotatably connected to the welding seat, and the welding screw is provided with two sections of threads with opposite rotation directions. The male seat and the female seat are respectively threadedly connected to the threads with opposite rotation directions of the welding screw through connecting blocks. When the welding screw rotates, the male seat and the female seat move toward or away from each other.

[0015] By adopting the above technical solution, the welding screw rotates, and the male seat and the female seat move synchronously toward or away from each other, thereby controlling the synthesis and separation of the arc line group, which is easy to use and stable to control.

[0016] Preferably, a travel rack parallel to the welding screw is fixed on the welding seat, a driving shaft perpendicular to the travel rack is rotatably connected to the male seat, an end of the driving shaft is rotatably connected to the connecting block, and a travel gear meshing with the travel rack is coaxially provided on the driving shaft; The two insulating frames are both fixed with driving racks parallel to the traveling racks, and the driving shaft is coaxially rotatably connected with two driving gears corresponding to and meshing with the two driving racks.

[0017] By adopting the above technical solution, when the welding screw rotates to drive the male seat to move, the traveling gear and the traveling rack cooperate with each other, thereby driving the driving shaft to rotate, and the driving shaft drives the driving rack to move through the driving gear, and the driving rack drives the insulating frame to move, and the insulating frame controls the conductive sheet to slide along the contact hole. When the male seat moves toward the female seat, the driving shaft also synchronously drives the conductive sheet to gradually extend out of the contact hole until the male seat and the female seat are fitted and the conductive sheet is completely inserted into the female seat. When the male seat and the female seat separate and move away from each other, the conductive sheet also retracts into the contact hole synchronously. The conductive sheet and the male seat move synchronously, and there is no need to add additional power equipment. It is easy to use and easy to control.

[0018] Preferably, the insulating pressing piece is inclined toward the inner wall of one end of the male socket.

[0019] By adopting the above technical solution, the inner wall of the end of the insulating pressing sheet is inclined to facilitate the insertion of the conductive sheet.

[0020] Preferably, an identification probe is provided on the welding seat.

[0021] By adopting the above technical solution, the identification probe identifies and locates the position of the workpiece, which facilitates the movement of the manipulator.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: Through the manipulator and the movable mounting base, a complete induction coil is split into two movable halves, so that the workpiece can be inserted into the induction coil for heating by moving and splicing the induction coil, without moving the workpiece, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the embodiment; Figure 2 is a schematic diagram of the connection between the mounting base and the welding base in the embodiment; Figure 3 is a schematic diagram of the internal structure of the male seat in the embodiment; Figure 4 It is a structural schematic diagram of the female seat in the embodiment; Figure 5 yes Figure 4 Enlarged schematic diagram of part A in the middle.

[0024] Description of reference numerals: 1. Base; 2. Manipulator; 3. Welding seat; 31. Identification probe; 4. Mounting seat; 41. Contact surface; 42. Contact hole; 43. Male seat; 431. Conductive sheet; 44. Female seat; 441. Insulating pressing piece; 442. Strengthening spring; 443. Connection gap; 5. Arc wire group; 6. Insulating frame; 61. Insulating rod; 62. Resistance spring; 63. Drive rack; 7. Welding screw; 71. Connecting block; 8. Traveling rack; 9. Driving shaft; 91. Traveling gear; 92. Driving gear. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0026] Example

[0027] The present application embodiment discloses an open-close eddy current welding device, referring to Figure 1 , including a base 1, on which a manipulator 2 is mounted. A welding seat 3 is fixed to the end of the manipulator 2 away from the base 1, and an identification probe 31 is provided on the welding seat 3. The identification probe 31 is electrically connected to the manipulator 2 through a controller. After the identification probe 31 detects a workpiece, the manipulator 2 moves so that the welding seat 3 is located at the workpiece.

[0028] Reference Figure 2 The welding seat 3 is rotatably connected with a welding screw 7, and the welding screw 7 is provided with two sections of threads with opposite rotation directions. The two sections of threads of the welding screw 7 are respectively threadedly connected with a connecting block 71, and the connecting block 71 is fixed with a mounting seat 4, one of the two mounting seats 4 is a male seat 43, and the other is a female seat 44. When the welding screw 7 rotates, the male seat 43 and the female seat 44 move toward or away from each other.

[0029] Reference Figure 2 , one petal arc wire group 5 is installed in each of the two mounting seats 4. After the two mounting seats 4 are close to each other and fit together, the two petals of the arc wire group 5 are connected to each other and spliced ​​into a complete conductive induction coil. The workpiece is placed in the induction coil for welding. After the welding is completed, the two mounting seats 4 are separated again, and the manipulator 2 moves the mounting seats 4 away. During the welding process, the workpiece does not need to be moved, which is convenient to use.

[0030] Reference Figure 2 The mounting seat 4 includes two contact surfaces 41, and the two contact surfaces 41 on the same mounting seat 4 are both facing the other mounting seat 4. A plurality of contact holes 42 are provided on the contact surface 41, and the two ends of the arc line group 5 are located in the two contact surfaces 41 of the same mounting seat 4 and in the contact holes 42. The two mounting seats 4 are close to each other, the contact surfaces 41 are in contact with each other, the contact holes 42 are facing each other, and the ends of the two-lobed arc line group 5 are in contact with each other and are connected.

[0031] Reference Figure 2 and Figure 3 A plurality of arc-shaped conductive sheets 431 are slidably connected in the contact hole 42 of the male socket 43. The arc of the conductive sheet 431 fits the outer circle of the arc-shaped wire group 5 and wraps the end of the arc-shaped wire group 5. One end of the conductive sheet 431 is in contact with the arc-shaped wire group 5 on the male socket 43, and the other end faces the female socket 44.

[0032] Reference Figures 3 to 5 , a number of insulating pressing sheets 441 are evenly arranged in the circumferential direction of the contact hole 42 of the female seat 44, and the insulating pressing sheets 441 and the female seat 44 are connected by the reinforcing spring 442, and a connection gap 443 is formed between the insulating pressing sheet 441 and the end of the arc wire group 5 in the female seat 44. When the reinforcing spring 442 is in a natural state, the distance of the connection gap 443 is less than the thickness of the conductive sheet 431. When the male seat 43 is connected to the female seat 44, the end of the conductive sheet 431 is inserted into the connection gap 443, and the insulating pressing sheet 441 presses the conductive sheet 431 against the outer wall of the arc wire group 5 of the female seat 44. At this time, the two petals of the arc wire group 5 not only contact each other at the end faces, but also the side walls are connected by the conductive sheet 431, which increases the contact surface area and improves the conductive performance. The insulating pressing sheet 441 also improves the connection stability between the conductive sheet 431 and the arc wire group 5.

[0033] The two-lobed arc-shaped wire group 5 is connected by contact. After long-term use, the connection end faces of the two will be damaged due to the existence of contact resistance and corrosion. Multiple contacts will lead to poor contact, which will further increase the contact resistance and affect the conductive performance. By setting the conductive sheet 431, the contact surface 41 of the two-lobed arc-shaped wire group 5 is increased, the conductive performance is improved, and the risk of poor contact is reduced. The insulating pressing sheet 441 is inclined toward the inner wall of one end of the male seat 43. The inner wall of the end of the insulating pressing sheet 441 is inclined to facilitate the insertion of the conductive sheet 431.

[0034] Reference Figure 2 and Figure 3 , two insulating frames 6 are slidably connected in the male seat 43, and the sliding direction of the insulating frames 6 is the same as that of the male seat 43. The two insulating frames 6 are respectively located in the two contact surfaces 41 of the male seat 43, and the end of the conductive sheet 431 away from the female seat 44 is connected to the insulating frames 6. The conductive sheet 431 slides in the contact hole 42 driven by the insulating frames 6. When the male seat 43 and the female seat 44 are connected, the conductive sheet 431 extends out of the contact hole 42 and connects the two-petal arc line group 5. When the male seat 43 and the female seat 44 are separated, the conductive sheet 431 retracts into the contact hole 42, and the conductive sheet 431 is protected.

[0035] Reference Figure 2 and Figure 3 A travel rack 8 parallel to the welding screw 7 is fixed on the welding seat 3, a driving shaft 9 perpendicular to the travel rack 8 is rotatably connected to the male seat 43, the end of the driving shaft 9 is rotatably connected to the connecting block 71, and a travel gear 91 meshing with the travel rack 8 is coaxially provided on the driving shaft 9. A driving rack 63 parallel to the travel rack 8 is fixed on the two insulating frames 6, and two driving gears 92 corresponding to and meshing with the two driving racks 63 are coaxially rotatably connected to the driving shaft 9.

[0036] Reference Figure 2 and Figure 3 When the welding screw 7 rotates to drive the male seat 43 to move, the traveling gear 91 and the traveling rack 8 cooperate with each other, thereby driving the driving shaft 9 to rotate, and the driving shaft 9 drives the driving rack 63 to move through the driving gear 92, and the driving rack 63 drives the insulating frame 6 to move, and the insulating frame 6 controls the conductive sheet 431 to slide along the contact hole 42. When the male seat 43 moves toward the female seat 44, the driving shaft 9 also synchronously drives the conductive sheet 431 to gradually extend from the contact hole 42 until the male seat 43 and the female seat 44 are in contact, and the conductive sheet 431 is completely inserted into the female seat 44. When the male seat 43 and the female seat 44 separate and move away from each other, the conductive sheet 431 also retracts into the contact hole 42 synchronously. The conductive sheet 431 and the male seat 43 move synchronously, and no additional power equipment is required, which is convenient to use and easy to control.

[0037] Reference Figure 2 and Figure 3 The insulating frame 6 includes an insulating rod 61 connected to the conductive sheet 431. The insulating rod 61 is located on the side of the conductive sheet 431 away from the arc wire group 5. A resisting spring 62 is provided between the insulating rod 61 and the conductive sheet 431. When the resisting spring 62 is in a natural state, the conductive sheet 431 resists the arc wire group 5. Under the action of the resisting spring 62, the conductive sheet 431 is always tightly attached to the arc wire group 5 of the male seat 43, thereby ensuring the conductivity between the conductive sheet 431 and the arc wire group 5.

[0038] The implementation principle of an open-and-close eddy current welding device in an embodiment of the present application is as follows: the identification probe 31 identifies the position of the workpiece and drives the mechanical arm to move to the corresponding position, the welding screw 7 rotates, the male seat 43 and the female seat 44 approach each other, and the conductive sheet 431 gradually extends out of the male seat 43 and inserts into the female seat 44 until the male seat 43 and the female seat 44 fit together. The two-lobed arc line group 5 is connected and conductive to each other. The workpiece is located between the male seat 43 and the female seat 44. At this time, power is turned on, and the induction coil heats and welds the workpiece. After welding is completed, the male seat 43 and the female seat 44 are separated, and the conductive sheet 431 is retracted into the male seat 43.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An open-close eddy current welding device, comprising a base (1) and an induction coil, characterized in that: A manipulator (2) for controlling the displacement of the induction coil is mounted on the base (1). A welding seat (3) is provided at the end of the manipulator (2). Two mounting seats (4) are movably connected to the welding seat (3). Each mounting seat (4) includes two contact surfaces (41) facing the other mounting seat (4). Movement of the mounting seat (4) can drive the contact surfaces (41) of the two mounting seats (4) to fit together or separate. The induction coil includes two-petal arc-shaped wire groups (5). The two-petal arc-shaped wire groups (5) are respectively mounted in the two mounting seats (4). A plurality of contact holes (42) for accommodating the ends of the arc-shaped wire groups (5) are provided on the contact surface (41). The two ends of the arc-shaped wire group (5) are respectively located on the two contact surfaces (41) of one mounting seat (4). The two-petal arc-shaped wire groups (5) are combined to form a conductive induction coil.

2. The open-close eddy current welding device according to claim 1, characterized in that: The mounting seat (4) comprises a male seat (43) and a female seat (44), A plurality of insulating pressing sheets (441) are evenly arranged in the circumferential direction of the contact hole (42) of the female seat (44); the insulating pressing sheets (441) and the female seat (44) are connected via a reinforcing spring (442); and a connecting gap (443) is formed between the insulating pressing sheets (441) and the end of the arc-shaped wire group (5) in the female seat (44); A plurality of arc-shaped conductive sheets (431) are arranged in the contact hole (42) of the male seat (43), one end of the conductive sheet (431) wraps around the end of the arc-shaped wire group (5) in the male seat (43), and the other end points to the female seat (44) and faces the connection gap (443). When the reinforcing spring (442) is in a natural state, the distance of the connection gap (443) is less than the thickness of the conductive sheet (431).

3. The open-close eddy current welding device according to claim 2, characterized in that: Two insulating frames (6) are slidably connected inside the male seat (43), and the sliding direction of the two insulating frames (6) is the same as that of the male seat (43). The two insulating frames (6) are respectively located inside two contact surfaces (41) of the male seat (43), and one end of the conductive sheet (431) away from the female seat (44) is connected to the insulating frame (6).

4. The open-close eddy current welding device according to claim 3, characterized in that: The insulating frame (6) comprises an insulating rod (61) connected to the conductive sheet (431); the insulating rod (61) is located on a side of the conductive sheet (431) away from the arc-shaped wire group (5); a resisting spring (62) is provided between the insulating rod (61) and the conductive sheet (431); when the resisting spring (62) is in a natural state, the conductive sheet (431) resists the arc-shaped wire group (5).

5. The open-close eddy current welding device according to claim 4, characterized in that: The welding seat (3) is rotatably connected to a welding screw (7), and the welding screw (7) is provided with two sections of threads with opposite rotation directions. The male seat (43) and the female seat (44) are respectively threadedly connected to the threads of the welding screw (7) with opposite rotation directions through a connecting block (71). When the welding screw (7) rotates, the male seat (43) and the female seat (44) move towards or away from each other.

6. The open-close eddy current welding device according to claim 5, characterized in that: A travel rack (8) parallel to the welding screw (7) is fixed on the welding seat (3); a driving shaft (9) perpendicular to the travel rack (8) is rotatably connected to the male seat (43); the end of the driving shaft (9) is rotatably connected to the connecting block (71); a travel gear (91) meshing with the travel rack (8) is coaxially provided on the driving shaft (9); A driving rack (63) parallel to the travel rack (8) is fixed on each of the two insulating frames (6), and two driving gears (92) corresponding to and meshing with the two driving racks (63) are coaxially rotatably connected to the driving shaft (9).

7. The open-close eddy current welding device according to claim 2, characterized in that: The insulating pressing piece (441) is arranged obliquely toward the inner wall of one end of the male seat (43).

8. The open-close eddy current welding device according to claim 1, characterized in that: The welding seat (3) is provided with an identification probe (31).

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