A metal bar double-end full-circumferential adaptive pulse current processing device and method

Abstract

The present invention discloses a double-ended, fully circumferentially adaptive pulse current processing device and method for metal rods, which relates to the technical field of electric pulse metal processing. The double-ended, fully circumferentially adaptive pulse current processing device for metal rods comprises: a copper braid electrically connected to a pulse power supply; a reeling mechanism connected to one end of the copper braid for reeling or unreeling the copper braid; and an energized clamping mechanism connected to the copper braid. The copper braid is used as an energized clamp for the metal rod, and the energized clamping mechanism drives the copper braid to expand or contract radially along the metal rod, and drives the copper braid to form an annular structure that matches the end of the metal rod. The copper braid can be adapted to metal rods of various specifications and has a wide range of applications. The reeling mechanism can be used to fully wrap the end of the metal rod in the circumferential direction, avoiding the effects of the skin effect and ensuring the uniformity of the pulse current.

Description

Technical Field

[0001] The present invention relates to the technical field of electric pulse metal processing, and in particular to a device and method for processing metal rod double-end omni-circumferential adaptive pulse current. Background Art

[0002] During the forming and manufacturing process, metal components are prone to problems such as uneven material microstructure and numerous micro defects. Microstructure regulation and micro defect repair of metal components are beneficial to improving the fatigue performance and ultimate service performance of the material.

[0003] Pulse current treatment technology uses the stimulation of high-energy pulsed electrons to significantly change the material's structure and properties, enabling microstructural control, mechanical property optimization, and damage repair of metal components. However, current pulse current treatment technology for metal bars still has the following drawbacks:

[0004] 1. The equipment that uses conductive clamps to process metal bars with pulse current has poor versatility. When processing bars of different diameters, the corresponding energized clamps need to be replaced.

[0005] 2. The equipment that uses a three-jaw chuck universal fixture to process metal bars with pulse current cannot achieve a full wrapping effect on the electrode. Due to the influence of skin effect, the pulse current action area is uneven.

[0006] In view of this, how to provide a metal bar pulse current processing device and method that can partially or completely overcome the above-mentioned defects is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0007] The purpose of the present invention is to provide a metal bar double-end full-circumferential adaptive pulse current processing device and method to solve the problems existing in the prior art.

[0008] To achieve the above-mentioned object, the present invention provides a metal bar double-end omni-circumferential adaptive pulse current processing device, comprising:

[0009] Copper braid, electrically connected to the pulse power supply;

[0010] a winding mechanism connected to one end of the copper braided belt and used for winding or unwinding the copper braided belt;

[0011] The energized clamping claw mechanism is connected to the copper braided belt and is used to drive the copper braided belt to expand or contract along the radial direction of the metal rod, and drive the copper braided belt to form an annular structure that is compatible with the end of the metal rod; when the copper braided belt is expanded along the radial direction of the metal rod, the winding mechanism unwinds the copper braided belt, and when the copper braided belt is contracted along the radial direction of the metal rod, the winding mechanism winds up the copper braided belt.

[0012] Furthermore, the energized claw mechanism has multiple members that are evenly spaced along the circumference of the metal bar, and the energized claw mechanism includes:

[0013] A first clamping claw is provided on the output end of the cylinder, and the cylinder is used to drive the first clamping claw to extend and retract along the radial direction of the metal bar;

[0014] a steering gear, disposed on the first claw;

[0015] The second and third clamping jaws are symmetrically arranged on the left and right sides of the first clamping jaw. The steering gear is connected to the second and third clamping jaws through a crank-connecting rod mechanism to drive the second and third clamping jaws toward or away from the metal bar.

[0016] The cross-section of the copper braided belt is T-shaped, and the bottoms of the first claw, the second claw, and the third claw are correspondingly provided with a first T-slot, a second T-slot, and a third T-slot. The copper braided belt is slidingly connected to the first T-slot, the second T-slot, and the third T-slot respectively, and the other end of the copper braided belt is fixedly connected to the third claw of an energized claw mechanism; the first claw, the second claw, and the third claw can drive the copper braided belt to form an annular structure that is compatible with the end of the metal rod.

[0017] Furthermore, a third claw fixedly connected to the other end of the copper braided belt is close to the winding mechanism.

[0018] Furthermore, the crank-connecting rod mechanism includes:

[0019] a crank connected to an output end of the servo;

[0020] a sliding member, rotatably connected to the crank;

[0021] A rocker defines a slide groove along its length, the sliding member is slidably connected to the slide groove, and one end of the rocker is rotatably connected to the first claw;

[0022] a connecting rod rotatably connected to the other end of the rocker arm; the second claw includes an integrally provided first connecting rod and a first claw portion, the length direction of the first claw portion being in the same direction as the extension and retraction direction of the first claw; the second T-slot is provided at the bottom of the first claw portion; the first connecting rod is provided at an obtuse angle to the first claw portion and is slidably connected to the first claw; and the first connecting rod is rotatably connected to the connecting rod;

[0023] The third claw comprises a second connecting rod and a second claw portion which are integrally provided, the length direction of the second claw portion being the same as the extension and contraction direction of the first claw portion, and the third T-shaped slot being provided at the bottom of the second claw portion; the second connecting rod and the second claw portion being provided at an obtuse angle and being slidably connected to the first claw portion, the first connecting rod corresponding to the second connecting rod, and the first claw portion corresponding to the second claw portion; the sliding guide slot being provided on the second connecting rod, and the first connecting rod being provided with a pulley which is slidably connected to the sliding guide slot;

[0024] When the servo rotates forward, the first claw portion and the second claw portion move closer to each other and away from the metal bar, and the first connecting rod and the second connecting rod slide upward relative to the first claw; when the servo rotates reversely, the first claw portion and the second claw portion move away from each other and closer to the metal bar, and the first connecting rod and the second connecting rod slide downward relative to the first claw.

[0025] Furthermore, it also includes:

[0026] a bottom plate, on which the cylinder is arranged;

[0027] The first base is arranged on the bottom plate, the first claw is slidably connected to the first base, and the winding mechanism is arranged on the first base; the first base has a positioning center, and the annular structure surrounded by the copper braided belt is concentric with the positioning center.

[0028] Furthermore, it also includes:

[0029] a second base, the first base being arranged on the second base;

[0030] The frame, the pulse power supply is arranged on the frame; the frame is provided with a first lead screw and a first guide rail, the bottom of the second base is provided with a first lead screw nut and a first slider, the first lead screw is threadedly connected to the first lead screw nut, the first slider is slidably connected to the first guide rail, and the lead screw motor drives the first lead screw through the first synchronous belt; the second base is provided with two groups, the lead screw motor can drive the second base to slide along the first guide rail, so that the two groups of second bases are close to or away from each other, and the two end heads of the metal rod are respectively arranged on the copper braided belts on the two groups of second bases.

[0031] Furthermore, it also includes:

[0032] The bar support platform assembly is arranged on the frame and located between the two groups of second bases. The bar support platform assembly is used for supporting and centering the metal bar.

[0033] Furthermore, the rod support platform assembly includes:

[0034] V-shaped support frame, installed on the lifting platform to support and center the metal bar;

[0035] The translation platform is provided with a second guide rail and a second lead screw, and the lifting platform is provided with a second slider and a second lead screw nut, the second slider is slidably connected to the second guide rail, and the second lead screw is threadedly connected to the second lead screw nut;

[0036] The first stepper motor is connected to the second lead screw through the second synchronous belt, and the first stepper motor is used to drive the lifting platform to move up and down in the vertical direction.

[0037] Furthermore, the frame is provided with a third guide rail and a third lead screw between the two groups of second bases, and a third slider and a third lead screw nut are provided at the bottom of the translation platform. The third slider is slidingly connected to the third guide rail, and the third lead screw is threadedly connected to the third lead screw nut; the second stepper motor is connected to the third lead screw through a coupling for driving the translation platform to slide between the two groups of second bases.

[0038] The present invention also provides a method for processing a metal bar with a double-end, full-circumferential adaptive pulse current, which uses a metal bar double-end, full-circumferential adaptive pulse current processing device, comprising the following steps:

[0039] S1: The preset inner diameter of the annular structure formed by the copper braid is larger than the outer diameter of the metal bar; the metal bar is centered on the V-shaped support frame, and the position of the metal bar is adjusted by the first stepper motor and the second stepper motor so that the metal bar is concentric with the positioning center of the first base; the position of the two sets of second bases is adjusted by the screw motor so that the V-shaped support frame is located in the middle between the two sets of second bases, and the two ends of the metal bar correspond to the two annular structures formed by the copper braid respectively;

[0040] S2: The cylinder and the steering gear are started, and the annular structure formed by the copper braid shrinks from the outside to the inside until the copper braid touches the outer side of the end of the metal bar. At the same time, the reeling mechanism reels the copper braid until it is tightened and adheres to the outer side of the end of the metal bar.

[0041] S3: Power the copper braid through a pulse power supply, and apply a pulse current to the metal rod;

[0042] S4: Start the cylinder and the servo again, and the annular structure formed by the copper braid expands from the inside to the outside. At the same time, the reeling mechanism unwinds the copper braid and takes out the processed metal rod.

[0043] The present invention discloses the following technical effects:

[0044] 1. The present invention uses a copper braid as an electrified clamp for metal bars. The electrified claw mechanism drives the copper braid to expand or contract along the radial direction of the metal bar, and drives the copper braid to form an annular structure that is compatible with the end of the metal bar. It can adapt to metal bars of various specifications and has a wide range of applications. In conjunction with the winding mechanism, the copper braid can fully wrap the end of the metal bar along the circumferential direction, avoiding the influence of the skin effect and ensuring the uniformity of the pulse current.

[0045] 2. The powered claw mechanism is arranged on the first base, which is arranged on the second base and can slide along the frame. It can adapt to metal bars of various lengths. The first base is provided with a positioning center, which is concentric with the metal bar and the copper braided belt to facilitate precise positioning.

[0046] 3. The bar support platform assembly is used to support and center the metal bars, and has the functions of lifting up and down and moving along the frame, further improving the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 This is the layout diagram of the energized claw mechanism;

[0050] Figure 3 Schematic diagram of the structure of the energized claw mechanism;

[0051] Figure 4 This is a schematic diagram of the rod support platform assembly structure;

[0052] Figure 5 Schematic diagram of a ring structure surrounded by copper braided belts;

[0053] Among them, 1. Frame; 2. Pulse power supply; 3. Bottom plate; 4. First base; 5. Winding mechanism; 6. First clamping claw; 7. Rocker; 8. Sliding member; 9. Crank; 10. Connecting rod; 11. Pulley; 12. Second clamping claw; 13. Third clamping claw; 14. Sliding guide groove; 15. Servo; 16. Cylinder; 17. Second lead screw nut; 18. Second guide rail; 19. Second slider; 20. First stepper motor; 21. Second synchronous belt; 22. Translation platform 23. Third guide rail; 24. Third slider; 25. Third lead screw nut; 26. Third lead screw; 27. Second stepper motor; 28. Coupling; 29. Second lead screw; 30. Lifting platform; 31. Micro electric cylinder; 32. V-shaped support frame; 33. Second base; 34. First lead screw nut; 35. First slider; 36. Copper braided belt; 37. First guide rail; 38. First synchronous belt; 39. First lead screw; 40. Metal rod; 41. Lead screw motor. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] An embodiment of the present invention provides a metal bar double-end omni-circumferential adaptive pulse current processing device, comprising:

[0057] Copper braid 36, electrically connected to the pulse power supply 2;

[0058] The winding mechanism 5 is connected to one end of the copper braided belt 36 and is used to wind or unwind the copper braided belt 36. The rotating shaft of the winding mechanism 5 can be driven to rotate by a driving motor to achieve winding and unwinding.

[0059] The energized clamping claw mechanism is connected to the copper braided belt 36, and is used to drive the copper braided belt 36 to expand or contract along the radial direction of the metal rod 40, and drive the copper braided belt 36 to form an annular structure that is compatible with the end of the metal rod 40; when the copper braided belt 36 is expanded along the radial direction of the metal rod 40, the winding mechanism 5 unwinds the copper braided belt 36, and when the copper braided belt 36 is contracted along the radial direction of the metal rod 40, the winding mechanism 5 rewinds the copper braided belt 36.

[0060] In this embodiment, there are three energized claw mechanisms that are evenly spaced along the circumference of the metal bar 40. The energized claw mechanisms include:

[0061] The first clamping jaw 6 is provided on the output end of the cylinder 16. The cylinder 16 is used to drive the first clamping jaw 6 to extend and retract along the radial direction of the metal bar 40.

[0062] The steering gear 15 is provided on the first claw 6;

[0063] The second and third clamping jaws 12, 13 are symmetrically arranged on the left and right sides of the first clamping jaw 6. The steering gear 15 is connected to the second and third clamping jaws 12, 13 via a crank-connecting rod mechanism, and is used to drive the second and third clamping jaws 12, 13 toward or away from the metal bar 40.

[0064] The cross-section of the copper braided belt 36 is T-shaped, and the bottoms of the first claw 6, the second claw 12, and the third claw 13 are correspondingly provided with a first T-slot, a second T-slot, and a third T-slot. The copper braided belt 36 is slidingly connected to the first T-slot, the second T-slot, and the third T-slot respectively, and the other end of the copper braided belt 36 is fixedly connected to the third claw 13 of an energized claw mechanism; the T-shaped copper braided belt 36 cooperates with the T-slot to ensure that the copper braided belt 36 slides with each T-slot but does not fall off, and the first claw 6, the second claw 12, and the third claw 13 can drive the copper braided belt 36 to form an annular structure that is compatible with the end of the metal rod 40.

[0065] In this embodiment, the third claw 13 fixedly connected to the other end of the copper braided belt 36 is close to the winding mechanism 5 .

[0066] In this embodiment, the crank-connecting rod mechanism includes:

[0067] The crank 9 is connected to the output end of the steering gear 15;

[0068] Sliding member 8, rotatably connected to crank 9;

[0069] The rocker 7 defines a slide groove along its length, the sliding member 8 is slidably connected to the slide groove, and one end of the rocker 7 is rotatably connected to the first claw 6;

[0070] The connecting rod 10 is rotatably connected to the other end of the rocker 7. The second claw 12 includes a first connecting rod and a first claw portion that are integrally provided. The length direction of the first claw portion is the same as the extension and contraction direction of the first claw 6. A second T-slot is provided at the bottom of the first claw portion. The first connecting rod is provided at an obtuse angle to the first claw portion and is slidably connected to the first claw 6. The first connecting rod is rotatably connected to the connecting rod 10.

[0071] The sliding guide groove 14, the third claw 13 includes an integrally arranged second connecting rod and a second claw portion, the length direction of the second claw portion is the same as the telescopic direction of the first claw 6, and the third T-slot is provided at the bottom of the second claw portion; the second connecting rod is provided at an obtuse angle to the second claw portion and is slidably connected to the first claw 6, the first connecting rod corresponds to the second connecting rod, and the first claw portion corresponds to the second claw portion; the sliding guide groove 14 is provided on the second connecting rod, and the first connecting rod is provided with a pulley 11, which is slidably connected to the sliding guide groove 14;

[0072] When the servo 15 rotates forward, the first claw portion and the second claw portion approach each other and move away from the metal bar 40, and the first connecting rod and the second connecting rod slide upward relative to the first claw 6; when the servo 15 rotates reversely, the first claw portion and the second claw portion move away from each other and move closer to the metal bar 40, and the first connecting rod and the second connecting rod slide downward relative to the first claw 6.

[0073] In this embodiment, a through slot is provided in the middle of the first claw 6, which is slidably connected to the second claw 12 and the third claw 13. During the forward and reverse rotation of the servo 15, the first connecting rod and the second connecting rod are always located within the through slot and will not be separated from the through slot. In other embodiments, other sliding structures suitable for the first claw 6, the second claw 12, and the third claw 13 may also be provided.

[0074] In this embodiment, it also includes:

[0075] Base plate 3, cylinder 16 is arranged on base plate 3;

[0076] The first base 4 is arranged on the bottom plate 3, the first claw 6 is slidably connected to the first base 4, and the winding mechanism 5 is arranged on the first base 4; the first base 4 has a positioning center, and the annular structure surrounded by the copper braided belt 36 is concentric with the positioning center.

[0077] In this embodiment, it also includes:

[0078] The second base 33, the first base 4 is arranged on the second base 33;

[0079] The frame 1 and the pulse power supply 2 are arranged on the frame 1; the frame 1 is provided with a first lead screw 39 and a first guide rail 37, and the bottom of the second base 33 is provided with a first lead screw nut 34 and a first slider 35, the first lead screw 39 is threadedly connected to the first lead screw nut 34, the first slider 35 is slidingly connected to the first guide rail 37, and the lead screw motor 41 drives the first lead screw 39 through the first synchronous belt 38; the second base 33 is provided with two groups, and the lead screw motor 41 can drive the second base 33 to slide along the first guide rail 37, so that the two groups of second bases 33 are close to or away from each other, and the two end heads of the metal rod 40 are respectively arranged on the copper braided belts 36 on the two groups of second bases 33.

[0080] In this embodiment, it also includes:

[0081] The bar support platform assembly is disposed on the frame 1 and located between the two sets of second bases 33 . The bar support platform assembly is used to support and center the metal bar 40 .

[0082] In this embodiment, the bar support platform assembly includes: a V-shaped support frame 32, a micro electric cylinder 31 is provided on the lifting platform 30, and the V-shaped support frame 32 is provided on the micro electric cylinder 31 for supporting and centering the metal bar 40;

[0083] The translation platform 22 is provided with a second guide rail 18 and a second lead screw 29. The lifting platform 30 is provided with a second slider 19 and a second lead screw nut 17. The second slider 19 is slidably connected to the second guide rail 18, and the second lead screw 29 is threadedly connected to the second lead screw nut 17.

[0084] The first stepper motor 20 is connected to the second lead screw 29 through the second synchronous belt 21. The first stepper motor 20 is used to drive the lifting platform 30 to move up and down in the vertical direction.

[0085] The first stepper motor 20 is used to quickly adjust the up and down positions of the V-shaped support frame 32 , and the micro electric cylinder 31 is used to accurately position the metal bar 40 .

[0086] In this embodiment, the frame 1 is provided with a third guide rail 23 and a third lead screw 26 between the two groups of second bases 33, and a third slider 24 and a third lead screw nut 25 are provided at the bottom of the translation platform 22. The third slider 24 is slidingly connected to the third guide rail 23, and the third lead screw 26 is threadedly connected to the third lead screw nut 25; the second stepper motor 27 is transmission-connected to the third lead screw 26 through a coupling 28, and is used to drive the translation platform 22 to slide between the two groups of second bases 33.

[0087] The present invention also provides a method for processing a metal bar with a double-end, full-circumferential adaptive pulse current, which uses a metal bar double-end, full-circumferential adaptive pulse current processing device, comprising the following steps:

[0088] S1: The preset inner diameter of the annular structure surrounded by the copper braid 36 is larger than the outer diameter of the metal rod 40, ensuring that rods of various specifications can be placed in the annular structure surrounded by the copper braid 36 before processing; the metal rod 40 is placed centrally on the V-shaped support frame 32, and parameters are set according to the specifications of the metal rod 40. The position of the metal rod 40 is adjusted by the first stepper motor 20 and the second stepper motor 27 so that the metal rod 40 is concentric with the positioning center of the first base 4; the position of the two groups of second bases 33 is adjusted by the screw motor 41 so that the V-shaped support frame 32 is located in the middle position between the two groups of second bases 33, and the two end heads of the metal rod 40 correspond to the two annular structures surrounded by the copper braid 36 respectively;

[0089] S2: Start the cylinder 16 and the steering gear 15, and the annular structure formed by the copper braid 36 shrinks from the outside to the inside until the copper braid 36 is in contact with the outer side surface of the end of the metal rod 40. At the same time, the reeling mechanism 5 reels the copper braid 36 until the copper braid 36 is tightened and attached to the outer side surface of the end of the metal rod 40; Figure 3 As shown, one end of the copper braided belt 36 is connected to the winding mechanism 5, and the other end is fixed to the third claw 13 at the top. The second claw 12 of the energized claw mechanism at the lower right is close to the third claw 13, and a small gap is left between the two for the copper braided belt 36 to be led out and connected to the winding mechanism 5. It should be noted that the gap has little effect on the wrapping properties of the copper braided belt 36 and can be ignored.

[0090] S3: Power is supplied to the copper braided belt 36 through the pulse power supply 2. The positive electrode of the pulse power supply 2 is electrically connected to the copper braided belt 36 at one end of the metal rod 40. The negative electrode of the pulse power supply 2 is electrically connected to the copper braided belt 36 at the other end of the metal rod 40. A pulse current is applied to the metal rod 40. The input power of the pulse power supply 2 is adjusted by the controller.

[0091] S4: The air cylinder 16 and the steering gear 15 are started again, and the annular structure formed by the copper braid 36 is expanded from the inside to the outside. At the same time, the reeling mechanism 5 unwinds the copper braid 36 and takes out the processed metal rod 40.

[0092] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0093] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A metal bar double-end full-circumferential adaptive pulse current processing device, characterized in that: include: A copper braid (36) electrically connected to the pulse power supply (2); A reeling mechanism (5) connected to one end of the copper braided belt (36) and used for reeling or unreeling the copper braided belt (36); An energized claw mechanism is connected to the copper braided belt (36) and is used to drive the copper braided belt (36) to expand or contract along the radial direction of the metal rod (40), and to drive the copper braided belt (36) to form an annular structure that is compatible with the end of the metal rod (40); when the copper braided belt (36) is expanded along the radial direction of the metal rod (40), the rewinding mechanism (5) unwinds the copper braided belt (36); when the copper braided belt (36) is contracted along the radial direction of the metal rod (40), the rewinding mechanism (5) rewinds the copper braided belt (36); The energized claw mechanism has a plurality of members and is evenly spaced along the circumference of the metal bar (40). The energized claw mechanism comprises: A first clamping claw (6) is provided on the output end of the cylinder (16), and the cylinder (16) is used to drive the first clamping claw (6) to extend and retract along the radial direction of the metal bar (40); A steering gear (15) is arranged on the first claw (6); The second clamping claw (12) and the third clamping claw (13) are symmetrically arranged on the left and right sides of the first clamping claw (6); the steering gear (15) is connected to the second clamping claw (12) and the third clamping claw (13) through a crank-connecting rod mechanism, and is used to drive the second clamping claw (12) and the third clamping claw (13) to move closer to or away from the metal bar (40); The cross section of the copper braided belt (36) is T-shaped, and the bottoms of the first clamping claw (6), the second clamping claw (12), and the third clamping claw (13) are correspondingly provided with a first T-slot, a second T-slot, and a third T-slot. The copper braided belt (36) is slidably connected to the first T-slot, the second T-slot, and the third T-slot, respectively. The other end of the copper braided belt (36) is fixedly connected to the third clamping claw (13) of an energized clamping claw mechanism; the first clamping claw (6), the second clamping claw (12), and the third clamping claw (13) can drive the copper braided belt (36) to form an annular structure that is compatible with the end of the metal rod (40).

2. A metal bar double-end full-circumferential adaptive pulse current processing device according to claim 1, characterized in that: A third claw (13) fixedly connected to the other end of the copper braided belt (36) is close to the winding mechanism (5).

3. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 2, characterized in that: The crank-connecting rod mechanism comprises: A crank (9) connected to an output end of the steering gear (15); A sliding member (8) is rotatably connected to the crank (9); The rocker (7) defines a slide groove along its length, the sliding member (8) is slidably connected to the slide groove, and one end of the rocker (7) is rotatably connected to the first claw (6); The connecting rod (10) is rotatably connected to the other end of the rocker (7); the second claw (12) includes a first connecting rod and a first claw portion that are integrally arranged; the length direction of the first claw portion is the same as the telescopic direction of the first claw (6); the second T-slot is arranged at the bottom of the first claw portion; the first connecting rod is arranged at an obtuse angle to the first claw portion and is slidably connected to the first claw (6); the first connecting rod is rotatably connected to the connecting rod (10); The third claw (13) includes a second connecting rod and a second claw portion that are integrally arranged, the length direction of the second claw portion is the same as the telescopic direction of the first claw (6), and the third T-slot is arranged at the bottom of the second claw portion; the second connecting rod is arranged at an obtuse angle to the second claw portion and is slidably connected to the first claw (6), the first connecting rod corresponds to the second connecting rod, and the first claw portion corresponds to the second claw portion; the sliding guide groove (14) is arranged on the second connecting rod, and a pulley (11) is provided on the first connecting rod, and the pulley (11) is slidably connected to the sliding guide groove (14); When the servo (15) rotates forward, the first claw portion and the second claw portion move closer to each other and away from the metal bar (40), and the first connecting rod and the second connecting rod slide upward relative to the first claw (6); when the servo (15) rotates reversely, the first claw portion and the second claw portion move closer to each other and away from the metal bar (40), and the first connecting rod and the second connecting rod slide downward relative to the first claw (6).

4. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 3, characterized in that: Also includes: A bottom plate (3), wherein the cylinder (16) is arranged on the bottom plate (3); The first base (4) is arranged on the bottom plate (3), the first claw (6) is slidably connected to the first base (4), and the winding mechanism (5) is arranged on the first base (4); the first base (4) has a positioning center, and the annular structure surrounded by the copper braided belt (36) is concentric with the positioning center.

5. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 4, characterized in that: Also includes: a second base (33), wherein the first base (4) is arranged on the second base (33); A frame (1), the pulse power supply (2) is arranged on the frame (1); a first lead screw (39) and a first guide rail (37) are arranged on the frame (1), a first lead screw nut (34) and a first slider (35) are arranged at the bottom of the second base (33), the first lead screw (39) is threadedly connected to the first lead screw nut (34), the first slider (35) is slidably connected to the first guide rail (37), and a lead screw motor (41) drives the first lead screw (39) through a first synchronous belt (38); the second base (33) is provided with two groups, the lead screw motor (41) can drive the second base (33) to slide along the first guide rail (37), so that the two groups of second bases (33) are close to or away from each other, and the two ends of the metal bar (40) are respectively arranged on the copper braided belts (36) on the two groups of second bases (33).

6. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 5, characterized in that: Also includes: A bar support platform assembly is provided on the frame (1) and is located between the two sets of second bases (33). The bar support platform assembly is used to support and center the metal bar (40).

7. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 6, characterized in that: The rod support platform assembly includes: A V-shaped support frame (32) is provided on the lifting platform (30) for supporting and centrally positioning the metal bar (40); The translation platform (22) is provided with a second guide rail (18) and a second lead screw (29); the lifting platform (30) is provided with a second slider (19) and a second lead screw nut (17); the second slider (19) is slidably connected to the second guide rail (18), and the second lead screw (29) is threadedly connected to the second lead screw nut (17); The first stepper motor (20) is connected to the second lead screw (29) through the second synchronous belt (21), and the first stepper motor (20) is used to drive the lifting platform (30) to move up and down in the vertical direction.

8. The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 7, characterized in that: The frame (1) is provided with a third guide rail (23) and a third lead screw (26) between the two groups of second bases (33); the bottom of the translation platform (22) is provided with a third slider (24) and a third lead screw nut (25); the third slider (24) is slidably connected to the third guide rail (23), and the third lead screw (26) is threadedly connected to the third lead screw nut (25); the second stepping motor (27) is transmission-connected to the third lead screw (26) through a coupling (28) and is used to drive the translation platform (22) to slide between the two groups of second bases (33).

9. A method for processing metal bars with double-ended, omni-circumferential adaptive pulse current, characterized in that: The metal bar double-end full-circumferential adaptive pulse current processing device according to claim 8 comprises the following steps: S1: The preset inner diameter of the annular structure formed by the copper braided belt (36) is larger than the outer diameter of the metal rod (40); the metal rod (40) is placed centrally on the V-shaped support frame (32), and the position of the metal rod (40) is adjusted by the first stepper motor (20) and the second stepper motor (27) so that the metal rod (40) is concentric with the positioning center of the first base (4); the position of the two groups of second bases (33) is adjusted by the screw motor (41) so that the V-shaped support frame (32) is located in the middle position between the two groups of second bases (33), and the two end heads of the metal rod (40) respectively correspond to the annular structure formed by the two copper braided belts (36); S2: The cylinder (16) and the steering gear (15) are started, and the annular structure formed by the copper braid (36) shrinks from the outside to the inside until the copper braid (36) is connected to the outer side surface of the end of the metal rod (40). At the same time, the reeling mechanism (5) reels the copper braid (36) until the copper braid (36) is tightened and attached to the outer side surface of the end of the metal rod (40); S3: Power is supplied to the copper braid (36) through the pulse power supply (2), and a pulse current is applied to the metal rod (40); S4: The cylinder (16) and the steering gear (15) are started again, and the annular structure formed by the copper braid (36) is unfolded from the inside to the outside. At the same time, the reeling mechanism (5) unwinds the copper braid (36) and takes out the processed metal rod (40).

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