Electromagnetic pulse welding device

Abstract

The utility model discloses an electromagnetic pulse welding device which comprises a bottom plate and a lifting plate capable of moving relative to the bottom plate, coil assemblies are arranged on the bottom plate and the lifting plate, each coil assembly comprises a set of single-turn coil pieces and a metal pressing plate arranged on the outer side of the single-turn coil piece located on the outermost side, magnetic collectors are arranged on the single-turn coil piece and the metal pressing plate, and a machining hole matched with a workpiece is defined by the magnetic collectors. The beneficial effects of the utility model are mainly embodied in that the design is exquisite, the arrangement of the heat dissipation flow channel can carry out forced cooling on the coil, the situation that the device is damaged due to overhigh temperature of the coil during batch production is avoided, and the service life can be prolonged to the greatest extent. In addition, the air inlet amount at the cold air inlet can be controlled through the arrangement of the adjusting valve, it is ensured that the temperature of the coil is within a preset value, and the service life of the coil is maximized.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic pulse welding, and in particular to an electromagnetic pulse welding device. Background Art

[0002] Magnetic pulse connection technology is a new type of connection technology that has unique advantages for connecting dissimilar materials. Tool coils are key components of magnetic pulse connection technology, and the development of tool coils serves the application of magnetic pulse connection technology in different application scenarios.

[0003] For example, the authorization announcement number CN 218069510 U discloses a magnetic pulse coil and a magnetic pulse connection device for closed-loop workpiece connection, including a first coil body, a first insulating support and a first magnetic collector embedded in the first coil body, the first coil body is connected to the second coil body through a flexible connecting conductor, the second coil body is embedded with a second insulating support and a second magnetic collector, the first magnetic collector and the second magnetic collector are enclosed to form a processing through hole adapted to the workpiece, a first mounting plate for fixing the first coil body is provided on the two sides of the first insulating support, the first mounting plate is arranged on the frame through a lifting mechanism, and a second mounting plate for fixing the second coil body is provided on the two sides of the second insulating support, and the second mounting plate is connected to the frame through a fixed connector; however, the above-mentioned coil generates Joule heat when it is continuously discharged, which is easy to cause problems such as excessive coil temperature, reduced coil strength and insulation damage, thereby affecting the service life of the coil. In addition, the lifting mechanism directly drives the first magnetic collector and the second magnetic collector to close through the output rod, and the force generated when the coil is discharged will exert a reverse force on the first magnetic collector and the second magnetic collector, resulting in loose closure and affecting the welding effect. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an electromagnetic pulse welding device.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An electromagnetic pulse welding device comprises a base plate and a lifting plate movable relative thereto, wherein the base plate and the lifting plate are both provided with a coil assembly, wherein the coil assembly comprises a group of single-turn coil parts and a metal pressure plate is provided on the outer side of the single-turn coil part located on the outermost side, wherein the single-turn coil parts and the metal pressure plate are provided with a magnetic collector, wherein the magnetic collector encloses and forms a processing hole adapted to a workpiece; wherein each of the single-turn coil parts comprises an insulating plate and a receiving groove provided thereon, wherein a coil having a contour adapted thereto is provided in the receiving groove, wherein an annular heat dissipation channel is provided on the coil, wherein a cold air inlet and a hot air outlet connected to the heat dissipation channel are provided on one side of the coil, wherein the coil is provided with a current inlet and a current outlet, wherein the current inlet and the current outlet are connected by a connecting conductor; wherein an opening is provided on the coil, wherein a supporting plate adapted thereto is provided in the opening.

[0007] Preferably, a locking screw hole is further provided on the inner side of the coil, and a locking bolt can pass through the threaded hole and be locked on the insulating plate.

[0008] Preferably, a muffler is provided at the hot air outlet, and the muffler is arranged on the insulating plate.

[0009] Preferably, a throttle valve is provided at the cold air inlet, and the throttle valve is arranged on the insulating plate.

[0010] Preferably, the insulating plate and the support plate are provided with connecting screw holes, and the connecting bolts can pass through the connecting screw holes and be locked on the metal pressing plate.

[0011] Preferably, a guide column is fixedly provided on the bottom plate, a top plate is fixedly provided on the top of the guide column, and the lifting plate is sleeved on the guide column; a support is fixedly provided on the top plate and the lifting plate, a transmission arm is pivotally provided on the support, a driving cylinder is fixedly provided on the top plate, a driving arm is pivotally provided on the cylinder shaft of the driving cylinder, and the other end of the driving arm is pivotally connected to the other end of the transmission arm.

[0012] Preferably, a stopper is provided on the guide column, and when the transmission arm is in a vertical state, the transmission arm abuts against the stopper.

[0013] Preferably, a linear bearing is sleeved on the guide column, and the lifting plate is fixed on the linear bearing.

[0014] Preferably, it further comprises a mechanical arm, on which the electromagnetic pulse welding device as described above is mounted.

[0015] The beneficial effects of the utility model are mainly reflected in:

[0016] 1. The design is exquisite. The setting of the heat dissipation channel can force the coil to cool, avoiding the situation where the coil temperature is too high during mass production, which may cause damage to the device and extend the service life to the maximum. In addition, the setting of the regulating valve can control the air intake at the cold air inlet to ensure that the temperature of the coil is within the predetermined value, maximizing its service life.

[0017] 2. The driving cylinder drives the transmission arm to move through the driving arm until the transmission arm is in a vertical state, that is, the pressure angle is 90 degrees, and it is in a self-locking state. At this time, the impact load of the coil is borne by the top plate, the bottom plate and the guide column, which can reduce the requirements for the driving cylinder, and a smaller driving cylinder can be selected to reduce costs. In addition, the self-locking connection method is adopted to improve the reliability of the processing process.

[0018] 3. The setting of linear bearing can reduce the friction between the lifting plate and the guide column, reduce noise and extend service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 : An exploded view of a single-turn coil member in a preferred embodiment of the utility model;

[0021] Figure 2 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0022] Figure 3 : A front view of a preferred embodiment of the utility model;

[0023] Figure 4 : A three-dimensional diagram of a preferred embodiment of the utility model installed on a mechanical arm. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] like Figures 1 to 3As shown, the utility model discloses an electromagnetic pulse welding device, including a base plate 1 and a lifting plate 2 movable relative thereto, wherein the base plate 1 and the lifting plate 2 are both provided with a coil assembly 3, wherein the coil assembly 3 includes a group of single-turn coil parts 30 and a metal pressing plate 31 is provided on the outer side of the single-turn coil part 30 located at the outermost side, wherein the metal pressing plates 31 cooperate with each other to limit the single-turn coil part 30 to prevent displacement from affecting the welding quality.

[0027] In this preferred embodiment, a magnetic flux collector 9 is provided on the single-turn coil member 30 and the metal pressure plate 31, and the magnetic flux collector 9 encloses a processing hole 91 adapted to the workpiece. Welding the workpiece using the magnetic flux collector 9 is a prior art, and the utility model will not be elaborated in detail here.

[0028] In the above, each of the single-turn coil parts 30 includes an insulating plate 32 and a receiving groove 33 provided thereon, wherein a coil 34 having a profile matching the coil 34 is provided in the receiving groove 33, and a locking screw hole 347 is provided on the inner side of the coil 34, and a locking bolt can pass through the threaded hole 347 and lock on the insulating plate 32, which can realize quick connection, facilitate disassembly, replacement and maintenance, and greatly improve work efficiency. In addition, a connecting screw hole 37 is provided on the insulating plate 32 and the support plate 36, and a connecting bolt can pass through the connecting screw hole 37 and lock on the metal pressure plate 31, and this design prevents the connecting bolt from passing through the coil, thereby reducing the risk of short circuit between turns.

[0029] The coil 34 is provided with an annular heat dissipation channel 341, and one side of the coil 34 is provided with a cold air inlet 342 and a hot air outlet 343 connected with the heat dissipation channel 341. The setting of the heat dissipation channel 341 can force cooling of the coil 34 to avoid excessive coil temperature during mass production, which may cause damage to the device and extend the service life to the maximum.

[0030] Furthermore, a throttle valve 349 is provided at the cold air inlet 342, and the throttle valve 349 is provided on the insulating plate 32. The setting of the regulating valve 349 can control the air intake at the cold air inlet 342, ensuring that the temperature of the coil 34 is within a predetermined value, so as to maximize its service life. In addition, in this preferred embodiment, a muffler 348 is provided at the hot air outlet 343, and the muffler 348 is provided on the insulating plate 32. The setting of the muffler 348 can reduce noise pollution.

[0031] In this preferred embodiment, the coil 34 is provided with a current inlet 344 and a current outlet 345, and the current inlet 344 and the current outlet 345 are connected by a connecting conductor 346, and the connecting conductor 346 is a rigid connecting conductor to ensure the reliability of electrical conduction. The coil 34 is provided with an opening 35, and a supporting plate 36 adapted thereto is provided in the opening 35, and the supporting plate 36 can limit the contour of the coil to prevent its radial deformation.

[0032] Another key point of the present invention is that: a guide column 4 is fixedly provided on the bottom plate 1, a top plate 5 is fixedly provided on the top of the guide column 4, and the lifting plate 2 is sleeved on the guide column 4; a support 6 is fixedly provided on the top plate 5 and the lifting plate 2, a transmission arm 61 is pivotally provided on the support 6, a driving cylinder 7 is fixedly provided on the top plate 5, a driving arm 71 is pivotally provided on the cylinder shaft of the driving cylinder 7, and the other end of the driving arm 71 is pivotally connected to the other end of the transmission arm 61. A stopper 41 is provided on the guide column 4, and when the transmission arm 61 is in a vertical state, the transmission arm 61 abuts against the stopper 41.

[0033] In this preferred embodiment, the driving cylinder 7 drives the transmission arm to move through the driving arm 71 until the transmission arm 61 is in a vertical state, that is, the pressure angle is 90 degrees, and it is in a self-locking state. At this time, the impact load of the coil is borne by the top plate, the bottom plate and the guide column, which can reduce the requirements for the driving cylinder, that is, a smaller driving cylinder can be selected, and the cost can be reduced. In addition, the self-locking connection method is adopted to improve the reliability of the processing process.

[0034] The guide column 4 is sleeved with a linear bearing 42 , and the lifting plate 2 is fixed on the linear bearing 42 . The arrangement of the linear bearing 42 can reduce the friction between the lifting plate 2 and the guide column 4 , thereby reducing noise and extending the service life.

[0035] like Figure 4 As shown, the utility model also includes a robot arm 8, on which the electromagnetic pulse welding device as described above is installed. Since the device needs to be supplied with high voltage and high current when working, the operator cannot get close to it when working. For occasions where mobile welding or crimping is required, the above device is installed at the end of the robot arm, and communication is established with the magnetic pulse control system through cables. The robot arm accurately moves the magnetic pulse device to the part to be processed of the workpiece through a pre-set position or sensor positioning recognition to complete the workpiece connection.

[0036] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0037] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Electromagnetic pulse welding device, characterized in that: The invention comprises a bottom plate (1) and a lifting plate (2) movable relative thereto, wherein the bottom plate (1) and the lifting plate (2) are both provided with a coil assembly (3), wherein the coil assembly (3) comprises a group of single-turn coil members (30) and a metal pressing plate (31) is provided on the outer side of the single-turn coil member (30) located at the outermost side, wherein the single-turn coil member (30) and the metal pressing plate (31) are provided with a magnetic flux collector (9), wherein the magnetic flux collector (9) encloses a processing hole (91) adapted to a workpiece; each of the single-turn coil members (30) comprises an insulating plate (32) and a receiving groove (33) provided thereon, wherein the receiving groove (33) is provided with a magnetic flux collector (9) and a processing hole (91) adapted to a workpiece. ) is provided with a coil (34) having a profile matching the coil (34), the coil (34) is provided with an annular heat dissipation channel (341), one side of the coil (34) is provided with a cold air inlet (342) and a hot air outlet (343) which are connected to the heat dissipation channel (341), the coil (34) is provided with a current inlet (344) and a current outlet (345), the current inlet (344) and the current outlet (345) being connected via a connecting conductor (346); the coil (34) is provided with an opening (35), and a supporting plate (36) matching the coil (34) is provided in the opening (35).

2. The electromagnetic pulse welding device according to claim 1, characterized in that: A locking screw hole (347) is also provided on the inner side of the coil (34), and a locking bolt can pass through the locking screw hole (347) and be locked on the insulating plate (32).

3. The electromagnetic pulse welding device according to claim 1, characterized in that: A muffler (348) is provided at the hot air outlet (343), and the muffler (348) is arranged on the insulating plate (32).

4. The electromagnetic pulse welding device according to claim 1, characterized in that: A throttle valve (349) is provided at the cold air inlet (342), and the throttle valve (349) is arranged on the insulating plate (32).

5. The electromagnetic pulse welding device according to claim 1, characterized in that: The insulating plate (32) and the support plate (36) are provided with connecting screw holes (37), and connecting bolts can pass through the connecting screw holes (37) and be locked on the metal pressing plate (31).

6. The electromagnetic pulse welding device according to claim 1, characterized in that: A guide column (4) is fixedly provided on the bottom plate (1), a top plate (5) is fixedly provided on the top of the guide column (4), and the lifting plate (2) is sleeved on the guide column (4); a support (6) is fixedly provided on the top plate (5) and the lifting plate (2), a transmission arm (61) is pivotally provided on the support (6), a driving cylinder (7) is fixedly provided on the top plate (5), a driving arm (71) is pivotally provided on the cylinder shaft of the driving cylinder (7), and the other end of the driving arm (71) is pivotally connected to the other end of the transmission arm (61).

7. The electromagnetic pulse welding device according to claim 6, characterized in that: A stopper (41) is provided on the guide column (4), and when the transmission arm (61) is in a vertical state, the transmission arm (61) abuts against the stopper (41).

8. The electromagnetic pulse welding device according to claim 7, characterized in that: A linear bearing (42) is sleeved on the guide column (4), and the lifting plate (2) is fixed on the linear bearing (42).

9. The electromagnetic pulse welding device according to claim 8, characterized in that: It also comprises a mechanical arm (8), on which the electromagnetic pulse welding device according to any one of claims 1 to 8 is installed.

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