Controllable metal electric explosion driving welding device and welding method

Abstract

The invention discloses a controllable metal electric explosion driving welding device and a welding method, and relates to the technical field of metal welding. To solve the problem; the device specifically comprises a base, a flying pipe fitting and a base pipe fitting with the diameter smaller than that of the flying pipe fitting, and further comprises a rotating frame of an annular closed structure, a fixing mechanism, a tensioning assembly, a magnetic collector and a regulation and control system. According to the invention, by arranging the magnetism collecting device, the aluminum driving part, the controller, the energy storage capacitor bank, the integrated camera, the pressure sensor and the current sensor, the energy storage capacitor bank can input controllable alternating current to the coil, the driving coil generates a transient magnetic field after receiving the current and transmits the transient magnetic field to the aluminum driving part, and the aluminum driving part generates eddy current due to electromagnetic induction, so that the transient magnetic field can be controlled. The eddy current passes through Joule heat, so that the temperature of the aluminum ring is increased to a melting point in a microsecond level, then the aluminum ring enters a liquid state and a gas state until a plasma state, finally electrical explosion occurs, and the energy storage capacitor bank is controlled through the controller, so that the electrical explosion welding state of the aluminum driving part can be regulated and controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal welding, in particular to a controllable metal electric explosion driven welding device and a welding method. BACKGROUND

[0002] The combination of aluminum-steel, copper-titanium and the like, which is difficult to realize by traditional welding, is broken and forms an atomic diffusion layer through the instantaneous high temperature and high pressure generated by the flying pipe explosion, so as to realize metallurgical bonding. The flying pipe is a driven element in the electric explosion welding system and is usually made of high electrical conductivity metal. The base pipe is the target welding piece to be connected and is usually a metal or composite material with higher structural strength. The core function is to deform plastically under the high-speed collision of the flying pipe and form a metallurgical bonding interface. The electric explosion welding technology of the flying pipe and the base pipe redefines the metal connection paradigm in extreme environments through precise energy control and material dynamic response.

[0003] The traditional electric explosion welding relies on chemical explosives or fixed parameter electric pulses, and the energy release process is not adjustable, resulting in large fluctuations in welding quality. In addition, this welding method usually requires a vacuum or protective gas environment and relies on large explosive storage facilities, which has high equipment costs. Furthermore, the traditional electric explosion welding is limited by the melting point and the difference in the thermal expansion coefficient of the materials, making it difficult to achieve high-quality connection of complex combinations. Therefore, it is not conducive to the welding quality of the flying pipe and the base pipe, and even less conducive to the rapid welding of a large number of flying pipes and base pipes. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and to provide a controllable metal electric explosion driven welding device and a welding method.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The controllable metal electric explosion driven welding device and the welding method comprise a base, a flying pipe and a base pipe with a smaller diameter than the flying pipe. The device further comprises: a rotating frame, which is annularly closed and symmetrically arranged on both sides of the base; a fixing mechanism, which is arranged on the rotating frame and symmetrically arranged on both sides of the base; a tensioning assembly, which is arranged on the axis of the rotating frame and used to drive the fixing mechanism on the same rotating frame to operate synchronously; a magnetic collection device, which is arranged on the symmetric axis of the fixing mechanism and has a welding hole for the flying pipe and the base pipe to pass through; an aluminum driving element, which is arranged in the welding hole; a propelling element, which is used to move the flying pipe and the base pipe to the position of the magnetic collection device; and a control system, which is configured to control the induced eddy current of the aluminum driving element.

[0007] The magnetic collection device comprises a coil and an induction support, the coil is installed on the induction support, the inner circle position of the coil is provided with the aluminum driving element, the aluminum driving element is a tubular structure with two ends penetrating through, and the inside of the aluminum driving element is suitable for the fly pipe element penetrating through, the thickness of the side wall of the aluminum driving element is less than 0.5mm, and the length of the aluminum driving element is greater than the length of the working end of the magnetic collection device.

[0008] Preferably, the control system comprises a controller, an energy storage capacitor group, an integrated camera, a pressure sensor and a current sensor; wherein the energy storage capacitor group, the integrated camera, the pressure sensor and the current sensor are respectively electrically connected with the controller, the energy storage capacitor group is configured to input alternating current to the coil, drive the coil to generate transient magnetic field and transmit to the aluminum driving element, the integrated camera is arranged on the side of the welding hole and is used for monitoring the electric explosion welding picture of the aluminum driving element, the pressure sensor and the current sensor are both arranged on the side of the aluminum driving element and are configured to detect the pressure and current change parameters of the aluminum driving element in real time during electric explosion welding and form electric signals, the controller receives the electric signals and compares them with the preset values, and then outputs control instructions, the control instructions can adjust the output voltage value of the energy storage capacitor group.

[0009] Further, a lifting motor is installed on the base, a threaded rod is connected to the output end of the lifting motor, the threaded rod penetrates through the induction support and is threadedly connected with the induction support, a longitudinal sliding rod is connected to the base, the longitudinal sliding rod penetrates through the induction support and is slidingly connected with the induction support, and the lifting motor is electrically connected with the controller. On the basis of the foregoing scheme: the rotating frame comprises a fixed ring and a supporting ring, the fixed ring is fixedly connected to the base, and the supporting ring is rotatably connected to the inner side wall of the fixed ring.

[0010] Further, the rotating frame comprises a fixed ring and a supporting ring, the fixed ring is fixedly connected to the base, and the supporting ring is rotatably connected to the inner side wall of the fixed ring; the rotating frame further comprises two rotating rings, the two rotating rings are connected through a plurality of connecting pieces, a plurality of placement rings are equidistantly arranged around the central axis of the rotating ring, the inside of the placement ring is suitable for the fly pipe element penetrating through, and the placement rings on the two rotating rings correspond to each other.

[0011] As a further scheme of the present application: the outer side wall of one of the rotating rings is connected with a gear ring, a transmission shaft is rotatably connected to the base, both ends of the transmission shaft are connected with gears, the gears are engaged with the gear ring, a transmission motor is installed on the base, the output end of the transmission motor is connected with the end of the transmission shaft, and the transmission motor is electrically connected with the controller; the other rotating ring is connected with a fixed clamping plate through a support one, one side surface of the fixed clamping plate is in a V-shaped structure and faces the axis direction of the rotating ring.

[0012] Meanwhile, the fixing mechanism comprises a movable clamping plate, an extension piece, a hinged base one, a stabilizing plate and a support two; the stabilizing plate is connected to the rotating ring through the support two, the movable clamping plate is connected to the stabilizing plate through the extension piece, the movable clamping plate corresponds in position to the fixed clamping plate, and the hinged base one is connected to the bottom of the movable clamping plate; the extension piece comprises a sleeve and an extension rod, the sleeve is connected to the stabilizing plate, one end of the extension rod extends into the sleeve and is in sliding connection with the sleeve, and the end of the extension rod away from the sleeve is connected with the base of the movable clamping plate; the stabilizing plate is provided with an oscillating groove, and the oscillating groove is suitable for the through passage of the connecting rod.

[0013] As a preferred embodiment of the present application: the tensioning assembly comprises a pushing block, an extension rod one, a limiting frame, a transverse sliding rod, a hinged base two and a connecting rod; the pushing block is located at the axis position of the rotating ring, the hinged base two is connected to the corresponding position of the hinged base one on the outer side wall of the pushing block, the hinged base one and the hinged base two are connected through the connecting rod, and both ends of the connecting rod are hingedly connected with the hinged base one and the hinged base two respectively; the limiting frame is connected to the stabilizing plate and is arranged in parallel with the pushing block, the transverse sliding rod is provided with a plurality of ends, one end of each of the transverse sliding rods is fixedly connected to the limiting frame, the other end of each of the transverse sliding rods penetrates through the pushing block and is in sliding connection with the pushing block, the movable end of the extension rod one is connected with the pushing block, and the extension rod one is electrically connected with the controller.

[0014] Finally, the propelling piece is composed of an extension rod two, a longitudinal support and a pushing pad; the longitudinal support is installed on the base, the extension rod two and the extension rod one are both installed on the longitudinal support, the pushing pad is connected to the movable end of the extension rod two, and the extension rod two is electrically connected with the controller.

[0015] The welding method of the controllable metal electric explosion driving welding device comprises the following steps:

[0016] Step one: install several flying pipe pieces on the rotating ring of one side of the rotating frame, and the flying pipe pieces are placed in the corresponding placement ring, the placement rings on the two rotating rings can support the flying pipe pieces, then install several base pipe pieces on the rotating ring of the other side of the rotating frame, and the base pipe pieces are placed in the corresponding placement ring, and the placement rings on the two rotating rings can also support the flying pipe pieces;

[0017] Step two: use the controller to start the lifting motor, thereby rotating the threaded rod, and under the action of the longitudinal sliding rod, the induction bracket moves longitudinally stably, adjusts the axis of the welding hole and the axis position of the flying pipe piece and the base pipe piece, so that the flying pipe piece and the base pipe piece can be smoothly extended into the welding hole;

[0018] Step three: use the controller to start the transmission motor, thereby rotating the transmission shaft, and the two gears rotate synchronously with the transmission shaft, driving the gear ring to rotate synchronously, while the gear ring drives one of the rotating rings, the other rotating ring is driven to rotate synchronously through the adapter, thereby driving the base pipe piece on the placement ring and the fixing mechanism to rotate around the axis of the rotating ring, thereby adjusting its position state, when the base pipe piece corresponds to the welding hole, start the extension rod two, the movable end of the extension rod two will push the base pipe piece to the welding hole through the pushing pad, until the base pipe piece is moved into the welding hole, then, in the same step and way, move the flying pipe piece, also move it into the welding hole, at this time, the aluminum driving piece is sleeved on one end of the flying pipe piece, and the flying pipe piece is sleeved on one end of the base pipe piece;

[0019] Step four: start the energy storage capacitor group through the controller, thereby inputting alternating current to the coil, driving the coil to generate a transient magnetic field and transmitting it to the aluminum driving piece, the aluminum driving piece generates eddy current due to electromagnetic induction, the eddy current generates Joule heat, the aluminum ring is heated to the melting point in microseconds, then enters the liquid state, gas state and finally plasma state, and finally explodes, the current sensor and voltage sensor located on the side can monitor the pressure and current change parameters of the aluminum driving piece during explosion welding in real time, and form an electric signal, and the integrated camera can detect the real-time picture of the aluminum driving piece during electric explosion, the controller receives the electric signal and compares it with the preset value, then outputs a control instruction, the control instruction can adjust the output voltage value of the energy storage capacitor group, thereby achieving the purpose of controllable electric explosion;

[0020] Step five: after the flying pipe piece and the base pipe piece are welded, the clamping and fixing state of the driving fixed mechanism to the flying pipe piece and the base pipe piece is not in the fastening clamping state, so the base pipe piece and the flying pipe piece after welding can be directly extracted, then the transmission motor is used to drive the rotating ring to rotate again, the next group of flying pipe pieces and base pipe pieces are sent to the welding hole position, and electric explosion welding operation is carried out, so as to circulate, a plurality of flying pipe pieces and base pipe pieces can be placed and welded at a time, time can be effectively saved when a large number of welding operations are processed, and the welding quality between the flying pipe and the base pipe is ensured through controllable electric explosion of the aluminum driving piece.

[0021] The beneficial effects of the present application are:

[0022] 1. The present application sets the magnetic collector, aluminum driving piece, controller, energy storage capacitor group, integrated camera, pressure sensor and current sensor, so that the energy storage capacitor group inputs controllable alternating current to the coil, and the driving coil generates a transient magnetic field after receiving the current and transmits it to the aluminum driving piece. The aluminum driving piece generates eddy current due to electromagnetic induction, the eddy current generates Joule heat, the aluminum ring is heated to melting point in microsecond level, then enters liquid state, gaseous state and finally plasma state, and finally electric explosion occurs. The controller controls the energy storage capacitor group, and then the electric explosion welding state of the aluminum driving piece can be adjusted. Compared with the traditional electric explosion welding, this method is more efficient and stable in electric explosion welding of the base pipe piece and the flying pipe piece.

[0023] 2. The present application sets the fixed mechanism, which can stably clamp the flying pipe piece and the base pipe piece, so that they are limited in a certain space and can only move linearly. The telescopic rod two can push the flying pipe piece or the base pipe piece to the welding hole position, and then the subsequent welding operation can be carried out. In this process, it is not necessary to manually hold the flying pipe piece or the base pipe piece, which is convenient to operate.

[0024] 3. The present application sets the transmission motor, gear ring, gear and transmission shaft, so that only one power source is needed to synchronously drive the rotating rings on both sides to rotate, thereby improving the accuracy of synchronous rotation of the two rotating rings, and the rotating rings can conveniently butt joint the flying pipe pieces or the base pipe pieces with the welding hole, thereby facilitating the subsequent welding operation.

[0025] 4. The present application sets the tensioning assembly, so that when the movable end of the telescopic rod one moves, it can drive a plurality of fixed mechanisms to synchronously operate, and under the action of the transverse sliding rod, the push block can stably move, thereby ensuring that each connecting rod can stably drive the fixed mechanism to operate, and facilitating clamping of the flying pipe piece or the base pipe piece. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The present application provides a controllable metal electric explosion driving and welding device and a welding method.

[0027] Figure 2 The front view of the controllable metal electric explosion driving welding device and the welding method proposed by the application;

[0028] Figure 3 The front view of the controllable metal electric explosion driving welding device and the welding method proposed by the application Figure 1 Partial structure diagram Figure 1 ;

[0029] Figure 4 The front view of the controllable metal electric explosion driving welding device and the welding method proposed by the application Figure 1 Partial structure diagram Figure 2 ;

[0030] Figure 5 The front view of the controllable metal electric explosion driving welding device and the welding method proposed by the application Figure 1 Partial structure diagram Figure 3 ;

[0031] Figure 6 The fixed mechanism plane structure diagram of the controllable metal electric explosion driving welding device and the welding method proposed by the application;

[0032] Figure 7 The fixed mechanism three-dimensional structure diagram of the controllable metal electric explosion driving welding device and the welding method proposed by the application;

[0033] Figure 8 The magnetic collector three-dimensional structure diagram of the controllable metal electric explosion driving welding device and the welding method proposed by the application.

[0034] In the figure: 1, base; 2, flying pipe piece; 3, base pipe piece; 4, fixed mechanism; 5, magnetic collector; 6, aluminum driving piece; 7, welding hole; 8, propelling piece; 9, coil; 10, induction support; 11, controller; 12, energy storage capacitor group; 13, lifting motor; 14, threaded rod; 15, longitudinal sliding rod; 16, fixed ring; 17, support ring; 18, rotating ring; 19, connecting piece; 20, placing ring; 21, gear ring; 22, transmission shaft; 23, gear; 24, transmission motor; 25, fixed clamping plate; 26, movable clamping plate; 27, hinged base one; 28, stabilizing plate; 29, support two; 30, sleeve; 31, extension rod; 32, swing groove; 33, connecting rod; 34, pushing block; 35, telescopic rod one; 36, limiting frame; 37, transverse sliding rod; 38, hinged base two; 39, telescopic rod two; 40, longitudinal support; 41, pushing pad. DETAILED DESCRIPTION

[0035] The technical solutions of the application will be further described in detail below in combination with specific embodiments.

[0036] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, for the purpose of explanation, and are not to be taken as limiting of the present application.

[0037] Controllable metal electric explosion driving welding device and welding method, as shown in Figures 1-8 The controllable metal electric explosion driving welding device and welding method, as shown in the drawings, includes a base 1, a flying pipe 2, and a base pipe 3 with a smaller diameter than the flying pipe 2, a rotating frame, a fixing mechanism 4, a tensioning assembly, a magnetic collecting device 5, and a control system. Specifically, the rotating frame is a closed ring structure and is provided with two symmetrically arranged rotating frames on both sides of the base 1. The fixing mechanism 4 is provided on both rotating frames, and the fixing mechanism 4 on the rotating frame is provided with several fixing mechanisms 4 arranged equidistantly around the central axis of the rotating frame. The fixing mechanism 4 is configured to fix the flying pipe 2 or the base pipe 3 on the rotating frame. The tensioning assembly is arranged at the axis of the rotating frame and is used to drive the several fixing mechanisms 4 on the same rotating frame to operate synchronously. The magnetic collecting device 5 is arranged at the symmetric axis of the two fixing mechanisms 4, and the magnetic collecting device 5 is provided with a welding hole 7 through which the flying pipe 2 and the base pipe 3 pass. An aluminum driving element 6 is arranged in the welding hole 7, and the flying pipe 2 and the base pipe 3 are moved to the position of the magnetic collecting device 5 by a propelling element 8. The control system is configured to control the induced eddy current of the aluminum driving element 6.

[0038] In order to solve the problem that the magnetic collecting device 5 can realize electric explosion welding and the aluminum driving element 6 is adapted, as shown in Figure 1 The magnetic collecting device 5 includes a coil 9 and an induction support 10. The coil 9 is mounted on the induction support 10, and the aluminum driving element 6 is arranged at the inner circle position of the coil 9. The aluminum driving element 6 is a tubular structure with both ends penetrating, and the inside of the aluminum driving element 6 is adapted to the flying pipe 2 penetrating through. The thickness of the side wall of the aluminum driving element 6 is less than 0.5 mm, and the length of the aluminum driving element 6 is greater than the length of the working end of the magnetic collecting device 5.

[0039] In order to solve the problem of parameter regulation when the device is electrically exploded, the regulation system comprises a controller 11, an energy storage capacitor group 12, an integrated camera, a pressure sensor and a current sensor; wherein the energy storage capacitor group 12, the integrated camera, the pressure sensor and the current sensor are electrically connected with the controller 11 respectively, the energy storage capacitor group 12 is configured to input alternating current to the coil 9, drive the coil 9 to generate a transient magnetic field and transmit it to the aluminum driving part 6, the integrated camera is arranged on the side of the welding hole 7 and is used for monitoring the electric explosion welding picture of the aluminum driving part 6, the pressure sensor and the current sensor are both arranged on the side of the aluminum driving part 6 and are configured to detect the pressure and current change parameters of the aluminum driving part 6 during electric explosion welding in real time and form an electric signal, the controller 11 receives the electric signal and compares it with the preset value and then outputs a regulation instruction, and the regulation instruction can regulate the output voltage value of the energy storage capacitor group 12.

[0040] By arranging the magnetic concentrating device 5, the aluminum driving part 6, the controller 11, the energy storage capacitor group 12, the integrated camera, the pressure sensor and the current sensor, the alternating current input to the coil 9 by the energy storage capacitor group 12 is controllable, the coil 9 generates a transient magnetic field after receiving the current and transmits it to the aluminum driving part 6, the aluminum driving part 6 generates eddy current due to electromagnetic induction, the eddy current generates Joule heat, the aluminum ring is heated to the melting point within microseconds, then enters the liquid state, the gaseous state and finally the plasma state, and finally the electric explosion occurs, the controller 11 controls the energy storage capacitor group 12, and thus the electric explosion welding state of the aluminum driving part 6 can be regulated, compared with the traditional electric explosion welding, this method is more efficient and the quality is more stable when the base pipe part 3 and the flying pipe part 2 are electrically exploded.

[0041] In order to solve the problem of height adjustment of the magnetic concentrating device 5, a lifting motor 13 is installed on the base 1, a threaded rod 14 is connected to the output end of the lifting motor 13, the threaded rod 14 penetrates through the induction bracket 10 and is threadedly connected with the induction bracket 10, a longitudinal sliding rod 15 is connected to the base 1, the longitudinal sliding rod 15 penetrates through the induction bracket 10 and is slidably connected with the induction bracket 10, and the lifting motor 13 is electrically connected with the controller 11.

[0042] In order to enable multiple base pipe parts 3 and flying pipe parts 2 to be welded synchronously in a single operation, the rotating frame comprises a fixed ring 16 and a supporting ring 17, the fixed ring 16 is fixedly connected to the base 1, the supporting ring 17 is rotatably connected to the inner side wall of the fixed ring 16, the rotating frame further comprises two rotating rings 18, the two rotating rings 18 are connected through a plurality of connecting pieces 19, a plurality of placing rings 20 are equidistantly arranged around the central axis of the rotating ring 18, the inside of the placing ring 20 is adapted for the flying pipe part 2 to penetrate through, and the placing rings 20 on the two rotating rings 18 correspond to each other.

[0043] One of the outer wall of the rotating ring 18 is connected with the gear ring 21, the base 1 is rotatably connected with the transmission shaft 22, both ends of the transmission shaft 22 are connected with the gear 23, the gear 23 is engaged with the gear ring 21, the base 1 is provided with the transmission motor 24, the output end of the transmission motor 24 is connected with the end of the transmission shaft 22, the transmission motor 24 is electrically connected between the controller 11, the other rotating ring 18 is connected with the fixed clamping plate 25 through the support, one side of the fixed clamping plate 25 is V-shaped structure, and it is towards the axis direction of the rotating ring 18, by setting the transmission motor 24, the gear ring 21, the gear 23 and the transmission shaft 22, only one power source can be used to drive the rotating ring 18 on both sides to rotate synchronously, thereby improving the precision of the synchronous rotation of the two rotating rings 18, and when the rotating ring 18 rotates, a plurality of flying pipe fittings 2 or base pipe fittings 3 can be conveniently connected with the welding hole 7, and the subsequent welding operation is facilitated.

[0044] In order to solve the problem that the base pipe fitting 3 and the flying pipe fitting 2 are clamped stably, the fixing mechanism 4 comprises a movable clamping plate 26, a telescopic piece, a hinged base one 27, a stabilizing plate 28 and a support two 29; wherein the stabilizing plate 28 is connected to the rotating ring 18 through the support two 29, the movable clamping plate 26 is connected to the stabilizing plate 28 through the telescopic piece, and the movable clamping plate 26 corresponds in position to the fixed clamping plate 25, and the hinged base one 27 is connected to the bottom of the movable clamping plate 26;

[0045] The telescopic piece comprises a sleeve 30 and an extension rod 31, the sleeve 30 is connected to the stabilizing plate 28, one end of the extension rod 31 extends into the sleeve 30 and is slidably connected with the sleeve 30, and the end of the extension rod 31 away from the sleeve 30 is connected with the base of the movable clamping plate 26; the stabilizing plate 28 is provided with a swing groove 32, and the swing groove 32 is suitable for the connecting rod 33 to pass through;

[0046] By setting the fixing mechanism 4, the flying pipe fitting 2 and the base pipe fitting 3 can be stably clamped so as to be limited in a certain space and can only move linearly, and by using the telescopic rod two 39, the flying pipe fitting 2 or the base pipe fitting 3 can be pushed to the position of the welding hole 7, thereby the subsequent welding operation can be carried out, and in this process, it is not necessary to manually hold the flying pipe fitting 2 or the base pipe fitting 3, which is convenient to operate.

[0047] In order to facilitate the synchronous operation of each fixing mechanism 4, the tensioning assembly comprises a pushing block 34, a telescopic rod one 35, a limiting frame 36, a transverse sliding rod 37, a hinged base two 38 and a connecting rod 33; wherein the pushing block 34 is located at the axis position of the rotating ring 18, the hinged base two 38 is connected to the corresponding position of the hinged base one 27 on the outer side wall of the pushing block 34, the hinged base one 27 and the hinged base two 38 are connected through the connecting rod 33, and the both ends of the connecting rod 33 are respectively hinged to the hinged base one 27 and the hinged base two 38;

[0048] The limiting frame 36 is connected to the stabilizing plate 28 and is arranged in parallel with the pushing block 34, the transverse sliding rods 37 are arranged in plurality, and one end of each of the transverse sliding rods 37 is fixedly connected to the limiting frame 36, the other end of each of the transverse sliding rods 37 penetrates through the pushing block 34 and is slidably connected to the pushing block 34, the movable end of the telescopic rod one 35 is connected to the pushing block 34, and the telescopic rod one 35 is electrically connected between the controller 11, when the movable end of the telescopic rod one 35 moves, the telescopic rod one 35 can drive the plurality of fixing mechanisms 4 to synchronously operate, and under the action of the transverse sliding rods 37, the pushing block 34 can stably move, thereby ensuring that each connecting rod 33 can stably drive the fixing mechanism 4 to operate, and facilitating clamping of the flying pipe piece 2 or the base pipe piece 3;

[0049] In addition, the pushing piece 8 is composed of a telescopic rod two 39, a longitudinal support 40 and a pushing pad 41; the longitudinal support 40 is installed on the base 1, the telescopic rod two 39 and the telescopic rod one 35 are both installed on the longitudinal support 40, the pushing pad 41 is connected to the movable end of the telescopic rod two 39, and the telescopic rod two 39 is electrically connected between the controller 11.

[0050] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. Controllable metal electro-explosive- driven welding device comprising a base (1), a flyer tube (2) and a base tube (3) having a diameter smaller than the flyer tube (2), characterized in that, Also include: Rotary frame, for annular closed structure, and set to two, and symmetrically set in the two sides of the base (1) position; Fixed mechanism (4), two said rotary frame on the fixed mechanism (4) is provided, and the fixed mechanism (4) on the rotary frame is provided with several, and is equidistantly arranged around the central axis of the rotary frame, the fixed mechanism (4) is configured to fix the flying pipe (2) or the base pipe (3) on the rotary frame; Tightening assembly, provided at the axis of the rotary frame, for driving several fixed mechanisms (4) on the same rotary frame to operate synchronously; Magnetic device (5), provided at the symmetry axis of two said fixed mechanism (4), the magnetic device (5) is provided with a welding hole (7) for the flying pipe (2) and the base pipe (3) to pass through, the welding hole (7) is provided with an aluminum driving element (6), the flying pipe (2) and the base pipe (3) are respectively moved to the position of the magnetic device (5) by the propelling element (8); Control system, configured to control the induced eddy current of the aluminum driving element (6).

2. The controllable metal explosive electrical discharge welding apparatus according to claim 1, wherein The magnetic device (5) comprises a coil (9) and an induction support (10), the coil (9) is mounted on the induction support (10), the inner circle position of the coil (9) is provided with the aluminum driving element (6), the aluminum driving element (6) is a tubular structure with both ends penetrating, and the inside is suitable for the flying pipe (2) to penetrate through, the thickness of the side wall of the aluminum driving element (6) is less than (0) (5) mm, and the length of the aluminum driving element (6) is greater than the length of the working end of the magnetic device (5).

3. The controllable metal explosive electrical discharge welding apparatus according to claim 2, wherein The control system comprises a controller (11), an energy storage capacitor group (12), an integrated camera, a pressure sensor and a current sensor; wherein the energy storage capacitor group (12), the integrated camera, the pressure sensor and the current sensor are respectively electrically connected with the controller (11), the energy storage capacitor group (12) is configured to input alternating current to the coil (9), drive the coil (9) to generate transient magnetic field and transmit to the aluminum driving element (6), the integrated camera is arranged on the side of the welding hole (7) and is used for monitoring the electric explosion welding picture of the aluminum driving element (6), the pressure sensor and the current sensor are arranged on the side of the aluminum driving element (6) and are configured to detect the pressure and current change parameters of the electric explosion welding of the aluminum driving element (6) in real time and form electric signal, the controller (11) receives the electric signal and compares with the preset value, and outputs control instruction, the control instruction can control the output voltage value of the energy storage capacitor group (12).

4. The controllable metal explosive electrical discharge welding apparatus according to claim 1, wherein The base (1) is provided with a lifting motor (13), the output end of the lifting motor (13) is connected with a threaded rod (14), the threaded rod (14) penetrates the induction support (10) and is threadedly connected with the induction support (10), the base (1) is connected with a longitudinal sliding rod (15), the longitudinal sliding rod (15) penetrates the induction support (10) and is slidably connected with the induction support (10), the lifting motor (13) and the controller (11) are electrically connected.

5. The controllable metal explosive electrical discharge welding apparatus according to claim 1, wherein The rotating frame includes a fixed ring (16) and a support ring (17). The fixed ring (16) is fixedly connected to the base (1), and the support ring (17) is rotatably connected to the inner wall of the fixed ring (16). The rotating frame also includes two rotating rings (18), which are connected by several connecting parts (19). Several placement rings (20) are equidistantly arranged on the rotating rings (18) around their central axis. The interior of the placement rings (20) is suitable for the flying tube (2) to pass through, and the placement rings (20) on the two rotating rings (18) correspond to each other.

6. The controllable metal explosive electrical discharge welding apparatus according to claim 5, wherein A gear ring (21) is connected to the outer side wall of one of the rotating rings (18), and a drive shaft (22) is rotatably connected to the base (1). Gears (23) are connected to both ends of the drive shaft (22), and the gears (23) mesh with the gear ring (21). A drive motor (24) is installed on the base (1), and the output end of the drive motor (24) is connected to the end of the drive shaft (22). The drive motor (24) is electrically connected to the controller (11). Another rotating ring (18) is connected to a fixing plate (25) via a bracket. One side of the fixing plate (25) has a V-shaped structure and faces the axis of the rotating ring (18).

7. The controllable metal explosive electrical discharge welding apparatus according to claim 3, wherein The fixing mechanism (4) includes a movable plate (26), a telescopic component, a hinged base (27), a stabilizing plate (28), and a bracket (29); wherein, the stabilizing plate (28) is connected to the rotating ring (18) through the bracket (29), the movable plate (26) is connected to the stabilizing plate (28) through the telescopic component, and the movable plate (26) is positioned opposite to the fixed plate (25), and the hinged base (27) is connected to the bottom of the movable plate (26); The telescopic component includes a sleeve (30) and an extension rod (31). The sleeve (30) is connected to the stabilizing plate (28). One end of the extension rod (31) extends into the sleeve (30) and is slidably connected to the sleeve (30). The end of the extension rod (31) away from the sleeve (30) is connected to the base of the movable plate (26). The stabilizing plate (28) is provided with a swing groove (32), which is suitable for the connecting rod (33) to pass through.

8. The controllable metal explosive electric drive welding device according to claim 7, characterized in that, The tensioning assembly includes a push block (34), a telescopic rod (35), a limiting frame (36), a transverse sliding rod (37), a hinged base (38), and a connecting rod (33); wherein, the push block (34) is located at the axial position of the rotating ring (18), and the hinged base (38) is connected to the outer side wall of the push block (34) at a position corresponding to the hinged base (27). The hinged base (27) and the hinged base (38) are connected by the connecting rod (33), and the two ends of the connecting rod (33) are respectively hinged to the hinged base (27) and the hinged base (38). The limiting frame (36) is connected to the stabilizing plate (28) and is arranged in parallel with the push block (34), the transverse sliding rods (37) are provided in plurality, one end of each of which is fixedly connected to the limiting frame (36), the other end of the transverse sliding rod (37) penetrates the push block (34) and is in sliding connection with the push block (34), the movable end of the telescopic rod one (35) is connected to the push block (34), and the telescopic rod one (35) is in electrical connection with the controller (11).

9. The controllable metal explosive electric drive welding device according to claim 8, characterized in that, The propelling piece (8) is composed of a telescopic rod two (39), a longitudinal support (40) and a push pad (41); the longitudinal support (40) is installed on the base (1), the telescopic rod two (39) and the telescopic rod one (35) are both installed on the longitudinal support (40), the push pad (41) is connected to the movable end of the telescopic rod two (39), and the telescopic rod two (39) is in electrical connection with the controller (11).

10. A welding method of a controllable metal explosive electric drive welding device, characterized in that, The controllable metal electric explosion driving and welding device according to claims 1-9, the welding method comprising the following steps: Step one: a plurality of flying pipe pieces (2) are installed on the rotating rings (18) of the one-side rotating frame, and the flying pipe pieces (2) are placed into the corresponding placing rings (20), the placing rings (20) on the two rotating rings (18) can support the flying pipe pieces (2), then a plurality of base pipe pieces (3) are installed on the rotating rings (18) of the other-side rotating frame, and the base pipe pieces (3) are placed into the corresponding placing rings (20), and the placing rings (20) on the two rotating rings (18) can also support the flying pipe pieces (2); Step two: the controller (11) is used to start the lifting motor (13), thereby driving the threaded rod (14) to rotate, and under the action of the longitudinal sliding rod (15), the induction support (10) is stably longitudinally moved, the axis of the welding hole (7) is adjusted to be in position with the axes of the flying pipe pieces (2) and the base pipe pieces (3), so that the flying pipe pieces (2) and the base pipe pieces (3) can be smoothly extended into the welding hole (7); Step three: start the transmission motor (24) with the controller (11), and then drive the transmission shaft (22) to rotate, and the two gears (23) rotate synchronously with the transmission shaft (22), drive the gear ring (21) to do circular motion synchronously, and the gear ring (21) drives one of the rotating rings (18), and at the same time, through the adapter (19), the other rotating ring is driven to rotate synchronously, and then the base pipe (3) on the placing ring (20) and the fixing mechanism (4) is driven to rotate around the axis of the rotating ring (18), and then the position state is adjusted. When the base pipe (3) corresponds to the welding hole (7), start the telescopic rod two (39), and the movable end of the telescopic rod two (39) will push the base pipe (3) to the welding hole (7) through the pushing pad (41), until the base pipe (3) is moved into the welding hole (7), then, move the flying pipe (2) in the same step and way, and move it into the welding hole (7) as well. At this time, the aluminum driving element (6) is sleeved outside one end of the flying pipe (2), and the flying pipe (2) is sleeved outside one end of the base pipe (3); Step four: start the energy storage capacitor group (12) through the controller (11), and then input alternating current to the coil (9), drive the coil (9) to generate transient magnetic field, and transmit to the aluminum driving element (6). The aluminum driving element (6) generates eddy current due to electromagnetic induction. The eddy current generates Joule heat, which makes the aluminum ring heat up to the melting point in microseconds, and then enters the liquid state, gas state and finally the plasma state, and finally explodes. The current sensor and voltage sensor on the side can monitor the pressure and current change parameters of the explosion welding of the aluminum driving element (6) in real time, and form an electric signal. The integrated camera can detect the real-time picture of the electric explosion of the aluminum driving element (6). The controller (11) receives the electric signal and compares the preset value, and then outputs the control instruction. The control instruction can control the output voltage value of the energy storage capacitor group (12), so as to achieve the purpose of controllable electric explosion; Step five: after the flying pipe (2) and the base pipe (3) are welded, because the clamping and fixing state of the driving fixed mechanism (4) to the flying pipe (2) and the base pipe (3) is not in the fastening clamping state, the base pipe (3) and the flying pipe (2) after welding can be directly taken out. Then, use the transmission motor (24) to drive the rotating ring (18) to rotate again, and send the next group of flying pipe (2) and base pipe (3) to the welding hole (7) position for electric explosion welding operation. In this way, the process is repeated. In this process, multiple flying pipes (2) and base pipes (3) can be placed and welded at a time. When processing a large number of welding operations, time can be effectively saved, and the controllable electric explosion of the aluminum driving element (6) ensures the welding quality between the flying pipe and the base pipe.

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