A cable welding device and a welding method for mineral insulated cables

Abstract

The present invention belongs to the field of welding technology, and specifically relates to a cable welding device and a welding method for mineral insulated cables, comprising a machine body, a lifting support plate, a swivel seat and a grinding disc; the ends of two sections of the cable extend into the middle of the machine body from the two ends of the machine body respectively, and the lifting component drives the lifting support plate to move upward along a storage groove, and pushes the swivel seat to move upward from the inside of the storage groove, so that the end of the cable is aligned with the grinding disc; the end of the cable contacts the grinding disc, and at this time, the driving component drives the swivel seat to rotate, driving the grinding discs at both ends to rotate, and the grinding discs grind the end of the cable to grind the end of the cable flat; by grinding and leveling the ends of the two sections of the cable, the degree of fit between the ends of the two sections of the cable is improved, and the quality of cable welding is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, in particular to a cable welding device and a welding method for mineral insulated cables. Background Art

[0002] Mineral insulated cable is a cable with a copper conductor core wrapped in a copper sheath and magnesium oxide powder as an inorganic insulating material to isolate the conductor and the sheath. The outermost layer can be selected as required. Since mineral insulated cable is made of inorganic materials, it has advantages that other cables do not have and is widely used in power transmission.

[0003] During the laying and installation process of the cable, it is necessary to weld the two sections of the cable. During the operation of the cable, unexpected situations may occur, causing the cable to break. Especially for single-core cables, the broken cables are usually welded. When welding, it is necessary to remove the cable sheath, strip off the insulation layer, and clean the metal conductor; butt the two sections of the cable conductors together; use a special hot welding machine to weld at the location where the conductors are butted; after welding, the welded joints need to be insulated.

[0004] When welding cables, due to the differences in the ends of the cables, when the two sections of the cables are aligned and contacted, the gaps between the ends of the two sections of the cables will be different, which can easily cause cracks during welding. After welding, the welding parts of the cables are prone to defects such as unevenness, burrs, oxides, etc., which affect the quality of the cables.

[0005] To this end, the present invention provides a cable welding device and a welding method for a mineral insulated cable. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a cable welding device described in the present invention comprises a machine body; a top beam is fixedly connected to the middle top surface of the machine body; a No. 1 hydraulic cylinder is fixedly connected to the middle of the top surface of the top beam; the piston rod of the No. 1 hydraulic cylinder slides through the top of the top beam; a welding head is fixedly connected to the bottom end of the piston rod of the No. 1 hydraulic cylinder; a storage groove is opened in the middle of the top surface of the machine body; a grinding unit is arranged inside the storage groove; the grinding unit comprises a lifting support plate; the lifting support plate is slidably installed inside the storage groove; a pair of brackets are fixedly connected to the top surface of the lifting support plate; a swivel seat is rotatably installed on the top of the two brackets; grinding discs are bolted to both ends of the swivel seat; a lifting component is arranged on one side of the storage groove, and The lifting assembly drives the lifting tray to lift; a driving assembly is provided in the middle of the lifting tray, and the driving assembly drives the swivel to rotate; the end of the cable contacts the grinding disc, at which time, the driving assembly drives the swivel to rotate, driving the grinding discs at both ends to rotate, and the grinding discs grind the end of the cable to make the end of the cable smooth; after the grinding of the end of the cable is completed, the lifting assembly drives the lifting tray and the swivel to descend and retract into the inside of the receiving groove, and aligns and contacts the ends of the two sections of the cable; the No. 1 hydraulic cylinder pushes the welding head to descend in height, so that the welding head is close to the connection between the two sections of the cable, and the two sections of the cable are welded; by grinding and leveling the ends of the two sections of the cable, the degree of fit between the ends of the two sections of the cable is improved, and the quality of the cable welding is improved.

[0008] Preferably, an annular groove is provided on the middle outer ring of the swivel seat; a plurality of grinding blocks are bolted around the inside of the annular groove; a plurality of the grinding blocks are surrounded to form a ring; the welding parts of the cable are ground, and at the same time, the cable is rotated, thereby completing the comprehensive grinding of the welding parts of the cable, thereby further improving the quality of cable welding.

[0009] Preferably, the driving assembly includes a gear ring; the gear ring is fixedly connected to the outer ring of one end of the swivel seat; a No. 1 motor is fixedly connected to the top surface of the lifting support plate close to the gear ring on one side; a No. 1 gear is fixedly connected to the outer ring of the rotating shaft of the No. 1 motor; the No. 1 gear is meshed with the gear ring; sufficient power is provided for grinding the ends of the cable and the welding parts of the cable.

[0010] Preferably, the lifting assembly includes a slide groove; the slide groove is opened on one side of the storage groove; a screw rod is rotatably installed inside the slide groove; a slider is slidably installed inside the slide groove; the screw rod and the slider are threadedly matched; the slider is bolted to the lifting support plate; a No. 2 motor is fixedly connected to the top of one side of the body close to the slide groove; the outer ring of the rotating shaft of the No. 2 motor and the top outer ring of the screw rod are both fixedly connected to a No. 2 gear; the two No. 2 gears are meshed with each other; and the lifting and lowering of the rotating seat is controlled.

[0011] Preferably, a fixing unit is provided at both ends of the body; the fixing unit includes a slot; the slot is opened at the top of both ends of the body; end plates are bolted at both ends of the body; the inside of the slot and the side of the end plate close to the body are fixedly connected with arc slide rails; a semicircular ring seat is slidably installed between a pair of the arc slide rails; the outer ring of the semicircular ring seat is fixedly connected with a No. 1 rack; a No. 3 gear is rotatably installed at the bottom of the slot; the No. 3 gear is meshed with the No. 1 rack; a No. 3 motor is fixedly connected to the side of the end plate away from the body; the rotating shaft of the No. 3 motor is fixedly connected to the No. 3 gear; No. 2 hydraulic cylinders are fixedly connected to both sides of the inner ring of the semicircular ring seat; the end of the No. 2 hydraulic cylinder close to the center of the semicircular ring seat is fixedly connected to a C-shaped frame; a concave wheel is rotatably installed in the middle of the C-shaped frame.

[0012] Preferably, the outer ring of the top end of the rotating shaft of the concave wheel is fixedly connected with a face gear; the top surface of the C-shaped frame is fixedly connected with a No. 4 motor; the outer ring of the rotating shaft of the No. 4 motor is fixedly connected with a No. 4 gear; the No. 4 gear is meshed with the face gear; power is provided for the movement of the cable, and the cable is clamped and fixed to avoid displacement of the cable during welding, which is convenient for the operation of the staff and improves the quality of cable welding; and it can drive the cable to rotate, and cooperate with the grinding block to complete the comprehensive grinding of the cable welding part, thereby improving the convenience of the staff's operation.

[0013] Preferably, an arc block is slidably installed inside the top opening of the semicircular ring seat; the arc block and the semicircular ring seat form a ring; the outer ring of the arc block is fixedly connected to a No. 2 rack; the No. 2 rack and the No. 1 rack form a gear ring; the inner ring of the arc block and the inner ring of the opening of the semicircular ring seat are provided with arc grooves on both sides; an arc clamping plate is slidably installed inside the arc groove; the length of the arc clamping plate is greater than the length of the arc block; the length of the arc groove on one side of the semicircular ring seat is greater than the length of the arc clamping plate; thereby increasing the rotation angle of the semicircular ring seat, increasing the rotation angle of the cable, and then improving the comprehensiveness of the grinding of the cable welding parts.

[0014] Preferably, cooling units are provided on both sides of the middle part of the machine body; the cooling units include cooling grooves; two cooling grooves are provided on the top surfaces of both sides of the middle part of the machine body; a semicircular fixed arc plate is fixedly connected to the top of the cooling groove; an inner cavity is provided inside the fixed arc plate; through grooves are provided on both sides of the middle part of the machine body; a water tank is fixedly connected inside the through groove; a water pump is fixedly connected inside the through groove; the water inlet end of the water pump is connected to the bottom of the water tank; movable arc plates are slidably installed on the outer rings of both ends of the fixed arc plate; the movable A connecting hole is provided at the top of the movable arc plate; the water outlet of the water tank is connected to the bottom of the movable arc plate and one side of the bottom of the fixed arc plate on one side through a hose; the bottom of the movable arc plate and the other side of the bottom of the fixed arc plate on the other side are connected to the top of the water tank through a pipeline; a pushing component is provided inside the cooling tank, and the pushing component pushes the movable arc plate to slide; thereby cooling the cable close to the welding part, avoiding the high temperature during cable welding from being conducted along the cable core, and then avoiding the outer sheath of the cable from being melted by the high temperature.

[0015] Preferably, the pushing assembly includes a No. 3 rack; the outer ring of the movable arc plate is fixedly connected to the No. 3 rack; the No. 5 gear is rotatably installed on both sides of the top of the cooling tank; the No. 5 gear is meshed with the No. 3 rack; the No. 5 motor is fixedly connected to both sides of the bottom of the cooling tank; the outer ring of the rotating shaft of the No. 5 motor and one end of the No. 5 gear are fixedly connected to pulleys; the outer rings of the two pulleys are provided with belts.

[0016] A welding method for a mineral insulated cable, the welding method adopts the above-mentioned cable welding device, and the welding method comprises the following steps:

[0017] S1: Peel off the outer sheath of the cable end, insert the cable end into the middle of the semicircular ring seat, and the No. 2 hydraulic cylinders on both sides push the concave wheels on both sides closer together, and the concave wheels on both sides clamp and fix the cable;

[0018] S2: At this time, the lifting assembly drives the lifting plate to move upward along the storage slot, pushing the swivel seat out of the storage slot; at the same time, the driving assembly drives the swivel seat and the grinding disc to rotate;

[0019] S3: At the same time, the fourth motor drives the concave wheel to rotate, driving the cable to move toward the middle of the machine body, so that the end of the cable contacts the grinding disc, and the grinding disc grinds the end of the cable;

[0020] S4: After the end of the cable is polished, the lifting assembly drives the lifting support plate and the rotating seat to be retracted into the receiving groove;

[0021] S5: Then, the concave wheels on both sides continue to drive the cable to move toward the middle of the machine body, so that the ends of the two cable sections are aligned and in contact;

[0022] S6: Afterwards, the pushing assembly pushes the movable arc plates on both sides to slide upward along the fixed arc plate, and the connection holes of the two movable arc plates are in contact and connected; so that the two movable arc plates and the fixed arc plate surround the cable; the water pump transports the clean water inside the water tank to the inside of the fixed arc plate and the movable arc plate respectively, and then flows back into the water tank;

[0023] S7: Hydraulic cylinder No. 1 pushes the welding head downward so that the welding head is close to the welding position of the two sections of the cable, and the two sections of the cable are welded;

[0024] S8: After the welding is completed, the lifting assembly drives the lifting support plate and the rotating seat to rise, so that the grinding block contacts the welding parts of the two cable sections;

[0025] S9: At the same time, the No. 3 motor drives the semicircular ring seat to rotate through the No. 3 gear and the No. 1 rack, drives the cable to rotate, and cooperates with the grinding block to comprehensively grind the welding part of the cable;

[0026] S10: After the grinding is completed, the cable is taken out and the welding parts of the cable are insulated.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. A cable welding device and a welding method for mineral insulated cables described in the present invention comprise a machine body, a lifting support plate, a swivel seat, a grinding disc and a grinding block; the ends of two sections of the cable extend into the middle of the machine body from the two ends respectively, and the lifting component drives the lifting support plate to move upward along the storage slot, pushing the swivel seat to rise and move out from the inside of the storage slot, so that the end of the cable is aligned with the grinding disc; the end of the cable contacts the grinding disc, at which time, the driving component drives the swivel seat to rotate, driving the grinding discs at both ends to rotate, and the grinding discs grind the end of the cable to grind the end of the cable flat; by grinding and leveling the ends of the two sections of the cable, the degree of fit between the ends of the two sections of the cable is improved; the driving component drives the swivel seat to rotate, driving the grinding block to rotate, grinding the welding part of the cable, and at the same time, cooperating with the rotating cable, the welding part of the cable is fully polished, thereby improving the quality of cable welding.

[0029] 2. A cable welding device and a welding method for mineral insulated cables described in the present invention comprise a fixed arc plate, a water tank, a water pump, a movable arc plate, a No. 3 rack, a No. 5 gear, a No. 5 motor, a pulley and a belt; the No. 5 motor drives the No. 5 gear to rotate through the transmission of the pulley and the belt, and drives the No. 3 rack and the movable arc plate to slide upward along the fixed arc plate, so that the connecting holes on the top of the movable arc plates on both sides are connected; the two movable arc plates and the fixed arc plates cover the outer ring of the cable close to the welding part; the water pump draws out the clean water inside the water tank, and the clean water is diverted to pass through the fixed arc plate and the movable arc plate; thereby cooling the cable close to the welding part, avoiding the high temperature during cable welding from being conducted along the cable core, and then avoiding the outer skin of the cable from being melted by the high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 is a stereogram of the present invention;

[0032] Figure 2 is an exploded view of the present invention;

[0033] Figure 3 is a three-dimensional diagram of a grinding unit in the present invention;

[0034] Figure 4 is an exploded view of the grinding unit in the present invention;

[0035] Figure 5 is a three-dimensional diagram of a fixing unit in the present invention;

[0036] Figure 6 is an exploded view of the fixing unit in the present invention;

[0037] Figure 7 is a three-dimensional diagram of the concave wheel of the present invention;

[0038] Figure 8 It is a three-dimensional diagram of the semicircular ring seat in the present invention;

[0039] Fig. 9 is a three-dimensional diagram of a cooling unit in the present invention;

[0040] Fig.10 is an exploded diagram of the cooling unit in the present invention;

[0041] Fig.11 It is a three-dimensional diagram of the fixed arc plate and the movable arc plate in the present invention;

[0042] Fig.12 is a cross-sectional view of a fixed arc plate and a movable arc plate in the present invention;

[0043] Fig.13is a flow chart of the welding method of the present invention;

[0044] In the figure: 1, machine body; 2, top beam; 3, hydraulic cylinder No. 1; 4, welding head; 5, storage slot; 6, lifting support plate; 7, bracket; 8, swivel seat; 9, grinding disc; 10, annular groove; 11, grinding block; 12, gear ring; 13, motor No. 1; 14, gear No. 1; 15, slide groove; 16, screw rod; 17, slide block; 18, motor No. 2; 19, gear No. 2; 20, notch; 21, end plate; 22, arc slide rail; 23, semicircular ring seat; 24, rack No. 1; 25, Gear No. 3; 26. Motor No. 3; 27. Hydraulic cylinder No. 2; 28. C-shaped frame; 29. ​​Concave wheel; 30. Surface gear; 31. Motor No. 4; 32. Gear No. 4; 33. Arc block; 34. Rack No. 2; 35. Arc groove; 36. Arc clamping plate; 37. Cooling groove; 38. Fixed arc plate; 39. Through groove; 40. Water tank; 41. Water pump; 42. Movable arc plate; 43. Rack No. 3; 44. Gear No. 5; 45. Motor No. 5; 46. Pulley; 47. Belt. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0046] like Figures 1 to 4 As shown, a cable welding device described in an embodiment of the present invention comprises a body 1; a top beam 2 is fixedly connected to the middle top surface of the body 1; a No. 1 hydraulic cylinder 3 is fixedly connected to the middle of the top surface of the top beam 2; the piston rod of the No. 1 hydraulic cylinder 3 slides through the top of the top beam 2; a welding head 4 is fixedly connected to the bottom end of the piston rod of the No. 1 hydraulic cylinder 3; a storage groove 5 is opened in the middle of the top surface of the body 1; a grinding unit is arranged inside the storage groove 5; the grinding unit comprises a lifting support plate 6; the lifting support plate 6 is slidably installed inside the storage groove 5; a pair of brackets 7 are fixedly connected to the top surface of the lifting support plate 6; a swivel seat 8 is rotatably installed on the top of the two brackets 7; grinding discs 9 are bolted to both ends of the swivel seat 8; a lifting component is arranged on one side of the storage groove 5, and the lifting component drives the lifting support plate 6 to lift; a driving component is arranged in the middle of the lifting support plate 6, and the driving component drives the swivel seat 8 to rotate;

[0047] During operation, after the outer sheath of the cable end is peeled off, the ends of the two sections of the cable are respectively extended into the middle part of the body 1 from the two ends of the body 1, and the lifting component drives the lifting support plate 6 to move upward along the storage groove 5, pushing the swivel seat 8 to rise and move out from the inside of the storage groove 5, so that the end of the cable is aligned with the grinding disc 9; the end of the cable contacts the grinding disc 9, at this time, the driving component drives the swivel seat 8 to rotate, driving the grinding discs 9 at both ends to rotate, and the grinding disc 9 grinds the end of the cable to grind the end of the cable flat; after the grinding of the end of the cable is completed, the lifting component drives the lifting support plate 6 and the swivel seat 8 to descend and retract into the inside of the storage groove 5, and then aligns and contacts the ends of the two sections of the cable; the No. 1 hydraulic cylinder 3 pushes the welding head 4 to descend in height, so that the welding head 4 is close to the connection between the two sections of the cable, and the two sections of the cable are welded; by grinding and leveling the ends of the two sections of the cable, the degree of fit between the ends of the two sections of the cable is improved, and the quality of cable welding is improved.

[0048] like Figures 1 to 4 As shown, the middle outer ring of the rotating seat 8 is provided with an annular groove 10; a plurality of grinding blocks 11 are bolted around the inside of the annular groove 10; the plurality of grinding blocks 11 surround and form a ring;

[0049] During operation, after the cable welding is completed, the welding part of the cable may have defects such as unevenness, burrs, oxides, etc.; at this time, the lifting component drives the lifting support plate 6 to move upward along the storage groove 5, so that the grinding block 11 on the outer circle of the swivel seat 8 contacts the welding part of the cable, and the driving component drives the swivel seat 8 to rotate, driving the grinding block 11 to rotate, and grinding the welding part of the cable. At the same time, the cable is rotated to complete the comprehensive grinding of the cable welding part, thereby further improving the quality of cable welding.

[0050] like Figures 1 to 4 As shown, the driving assembly includes a ring gear 12; the ring gear 12 is fixedly connected to the outer ring of one end of the swivel seat 8; a No. 1 motor 13 is fixedly connected to the top surface of the lifting support plate 6 close to the side of the ring gear 12; the outer ring of the rotating shaft of the No. 1 motor 13 is fixedly connected to the No. 1 gear 14; the No. 1 gear 14 is meshed with the ring gear 12; when working, the No. 1 motor 13 drives the No. 1 gear 14 to rotate, drives the ring gear 12 to rotate, and drives the swivel seat 8 to rotate, thereby providing sufficient power for the grinding of the cable end and the welding part of the cable.

[0051] like Figures 1 to 4As shown, the lifting assembly includes a slide slot 15; the slide slot 15 is opened on one side of the storage slot 5; a screw rod 16 is rotatably installed inside the slide slot 15; a slider 17 is slidably installed inside the slide slot 15; the screw rod 16 and the slider 17 are threadedly matched; the slider 17 is bolted to the lifting support plate 6; a No. 2 motor 18 is fixedly connected to the top of one side of the body 1 close to the slide slot 15; the outer ring of the rotating shaft of the No. 2 motor 18 and the top outer ring of the screw rod 16 are both fixedly connected to a No. 2 gear 19; the two No. 2 gears 19 are meshed with each other; when working, the No. 2 motor 18 drives the screw rod 16 to rotate through the transmission of the two No. 2 gears 19, drives the slider 17 to slide along the slide slot 15, and drives the lifting support plate 6 to rise and fall along the storage slot 5, thereby controlling the lifting and lowering of the swivel seat 8.

[0052] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, both ends of the body 1 are provided with fixing units; the fixing units include notches 20; the notches 20 are opened at the tops of both ends of the body 1; both ends of the body 1 are bolted with end plates 21; the inside of the notches 20 and the side of the end plates 21 close to the body 1 are fixedly connected with arc-shaped slide rails 22; a pair of semicircular ring seats 23 are slidably installed between the pair of arc-shaped slide rails 22; the outer ring of the semicircular ring seat 23 is fixedly connected with a No. 1 rack 24; A No. 3 gear 25 is rotatably mounted at the bottom; the No. 3 gear 25 meshes with the No. 1 rack 24; a No. 3 motor 26 is fixedly connected to the side of the end plate 21 away from the machine body 1; the rotating shaft of the No. 3 motor 26 is fixedly connected to the No. 3 gear 25; a No. 2 hydraulic cylinder 27 is fixedly connected to both sides of the inner ring of the semicircular ring seat 23; a C-shaped frame 28 is fixedly connected to one end of the No. 2 hydraulic cylinder 27 close to the center of the semicircular ring seat 23; a concave wheel 29 is rotatably mounted in the middle of the C-shaped frame 28;

[0053] The outer ring of the top end of the rotating shaft of the concave wheel 29 is fixedly connected with a face gear 30; the top surface of the C-shaped frame 28 is fixedly connected with a fourth motor 31; the outer ring of the rotating shaft of the fourth motor 31 is fixedly connected with a fourth gear 32; the fourth gear 32 is meshed with the face gear 30;

[0054] During operation, the outer sheath of the cable end is peeled off, and the cable end is inserted into the middle of the semicircular ring seat 23. The No. 2 hydraulic cylinders 27 on both sides push the concave wheels 29 on both sides to approach each other, and the concave wheels 29 on both sides clamp and fix the cable; the No. 4 motor 31 drives the No. 4 gear 32 to rotate, drives the face gear 30 to rotate, drives the concave wheel 29 to rotate, and drives the cable to move toward the middle of the machine body 1; thereby providing power for the movement of the cable, and clamping and fixing the cable to avoid displacement of the cable during welding, facilitating the operation of the staff, and improving the quality of cable welding;

[0055] When welding a cable with a larger diameter, the No. 3 motor 26 drives the No. 3 gear 25 to rotate, drives the No. 1 rack 24 and the semicircular ring seat 23 to slide along the arc-shaped slide rail 22, drives the No. 2 hydraulic cylinder 27, the C-shaped frame 28 and the concave wheel 29 to rotate, drives the cable to rotate, cooperates with the welding head 4 to perform annular welding, thereby improving the application range of cable welding;

[0056] When the cable welding is completed, the No. 3 motor 26 drives the No. 3 gear 25 to rotate, driving the No. 1 rack 24 and the semicircular ring seat 23 to slide along the arc-shaped slide rail 22, driving the No. 2 hydraulic cylinder 27, the C-shaped frame 28 and the concave wheel 29 to rotate, driving the cable to rotate, and cooperating with the grinding block 11 to complete the comprehensive grinding of the cable welding part, thereby improving the convenience of operation for the staff.

[0057] like Figure 5 , Figure 6 and Figure 8 As shown, an arc block 33 is slidably installed inside the top opening of the semicircular ring seat 23; the arc block 33 and the semicircular ring seat 23 form a ring; the outer ring of the arc block 33 is fixedly connected to the second rack 34; the second rack 34 and the first rack 24 form a gear ring; the inner ring of the arc block 33 and the inner ring of the opening of the semicircular ring seat 23 are both provided with arc grooves 35; an arc clamping plate 36 is slidably installed inside the arc groove 35; the length of the arc clamping plate 36 is greater than the length of the arc block 33; the length of the arc groove 35 on one side of the semicircular ring seat 23 is greater than the length of the arc clamping plate 36;

[0058] During operation, the arc block 33 is installed inside the opening at the top of the semicircular ring seat 23, so that the arc groove 35 on the arc block 33 is aligned with the arc groove 35 of the inner ring of the semicircular ring seat 23, and the arc clamping plate 36 is pushed to slide along the arc groove 35, so that the arc block 33 and the semicircular ring seat 23 are connected and locked, so that the arc block 33 and the semicircular ring seat 23 form a complete circular ring; at the same time, the first rack 24 and the second rack 34 form a complete gear ring; thereby increasing the rotation angle of the semicircular ring seat 23, increasing the rotation angle of the cable, and then improving the comprehensiveness of the grinding of the cable welding part;

[0059] When the cable welding and grinding is completed, push the arc clamping plate 36 to slide along the arc groove 35 to separate the arc block 33 from the semicircular ring seat 23, take out the arc block 33, expose the opening at the top of the semicircular ring seat 23, and take out the cable through the opening at the top of the semicircular ring seat 23, so that it is convenient for the staff to take out the cable.

[0060] like Figure 1 , Figure 2 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, cooling units are provided on both sides of the middle of the machine body 1; the cooling units include cooling grooves 37; two cooling grooves 37 are provided on the top surfaces of both sides of the middle of the machine body 1; a semicircular fixed arc plate 38 is fixedly connected to the top of the cooling groove 37; an inner cavity is provided inside the fixed arc plate 38; through grooves 39 are provided on both sides of the middle of the machine body 1; a water tank 40 is fixedly connected inside the through groove 39; a water pump 41 is fixedly connected inside the through groove 39; the water inlet end of the water pump 41 is connected to the water tank 40 The bottom of the fixed arc plate 38 is provided with a movable arc plate 42 slidably mounted on the outer rings at both ends; a connecting hole is provided at the top of the movable arc plate 42; the water outlet of the water tank 40 is connected to the bottom of the movable arc plate 42 and one side of the bottom of the fixed arc plate 38 on one side through a hose; the bottom of the movable arc plate 42 and the other side of the bottom of the fixed arc plate 38 on the other side are connected to the top of the water tank 40 through a pipe; a pushing component is provided inside the cooling tank 37, and the pushing component pushes the movable arc plate 42 to slide;

[0061] The pushing assembly includes a No. 3 rack 43; the outer ring of the movable arc plate 42 is fixedly connected to the No. 3 rack 43; the No. 5 gear 44 is rotatably mounted on both sides of the top of the cooling groove 37; the No. 5 gear 44 is meshed with the No. 3 rack 43; the No. 5 motor 45 is fixedly connected to both sides of the bottom of the cooling groove 37; the outer ring of the rotating shaft of the No. 5 motor 45 and one end of the No. 5 gear 44 are fixedly connected to pulleys 46; the outer rings of the two pulleys 46 are provided with belts 47;

[0062] During operation, when the cable is welded, high temperature will be generated at the welding part of the cable, and the high temperature will be conducted along the cable core, which may easily cause the cable sheath to burn and melt; after the ends of the two sections of the cable are aligned and contacted, the fifth motor 45 drives the fifth gear 44 to rotate through the transmission of the pulley 46 and the belt 47, and drives the third rack 43 and the movable arc plate 42 to slide upward along the fixed arc plate 38, so that the connecting holes at the top of the movable arc plates 42 on both sides are connected; the two movable arc plates 42 and the fixed arc plate 38 cover the outer ring of the cable near the welding part The water pump 41 draws out the clean water in the water tank 40, and then diverts it through the pipeline. A part of the clean water is transported to the bottom of a movable arc plate 42, and then transported to the inside of another movable arc plate 42 through the connecting hole on the top of the movable arc plate 42; the other part of the clean water is transported to the inside of the fixed arc plate 38; finally, the two parts of the clean water flow back to the top of the water tank 40 through the pipeline; thereby cooling the cable near the welding part, avoiding the high temperature during cable welding from being transmitted along the cable core, and then avoiding the cable sheath from being melted by the high temperature.

[0063] A welding method for a mineral insulated cable, the welding method adopts the above-mentioned cable welding device, and the welding method comprises the following steps:

[0064] S1: Peel off the outer skin of the cable end, insert the cable end into the middle of the semicircular ring seat 23, and the No. 2 hydraulic cylinders 27 on both sides push the concave wheels 29 on both sides to approach each other, and the concave wheels 29 on both sides clamp and fix the cable;

[0065] S2: At this time, the lifting assembly drives the lifting support plate 6 to move upward along the storage slot 5 to push the rotating seat 8 out of the storage slot 5; at the same time, the driving assembly drives the rotating seat 8 and the grinding disc 9 to rotate;

[0066] S3: At the same time, the fourth motor 31 drives the concave wheel 29 to rotate, driving the cable to move toward the middle of the body 1, so that the end of the cable contacts the grinding disc 9, and the grinding disc 9 grinds the end of the cable;

[0067] S4: After the end of the cable is polished, the lifting assembly drives the lifting support plate 6 and the rotating seat 8 to be retracted into the receiving groove 5;

[0068] S5: Then, the concave wheels 29 on both sides continue to drive the cable to move toward the middle of the body 1, so that the ends of the two sections of the cable are aligned and in contact;

[0069] S6: Afterwards, the pushing assembly pushes the movable arc plates 42 on both sides to slide upward along the fixed arc plate 38, and the connection holes of the two movable arc plates 42 are in contact and connected; so that the two movable arc plates 42 and the fixed arc plate 38 surround the cable; the water pump 41 transports the clean water in the water tank 40 to the inside of the fixed arc plate 38 and the movable arc plate 42 respectively, and then flows back into the water tank 40;

[0070] S7: The No. 1 hydraulic cylinder 3 pushes the welding head 4 downward so that the welding head 4 is close to the welding position of the two sections of the cable to weld the two sections of the cable;

[0071] S8: After the welding is completed, the lifting assembly drives the lifting support plate 6 and the rotating seat 8 to rise in height, so that the grinding block 11 contacts the welding parts of the two cable sections;

[0072] S9: At the same time, the third motor 26 drives the semicircular ring seat 23 to rotate through the third gear 25 and the first rack 24, driving the cable to rotate, and cooperates with the grinding block 11 to comprehensively grind the welding part of the cable;

[0073] S10: After the grinding is completed, the cable is taken out and the welding parts of the cable are insulated.

[0074] Working principle: The arc block 33 is installed inside the opening at the top of the semicircular ring seat 23, so that the arc groove 35 on the arc block 33 is aligned with the arc groove 35 of the inner ring of the semicircular ring seat 23, and the arc clamping plate 36 is pushed to slide along the arc groove 35, so that the arc block 33 and the semicircular ring seat 23 are connected and locked, so that the arc block 33 and the semicircular ring seat 23 form a complete circular ring; at the same time, the No. 1 rack 24 and the No. 2 rack 34 form a complete gear ring;

[0075] The outer sheath of the cable end is peeled off, and the cable end is inserted into the middle of the semicircular ring seat 23. The No. 2 hydraulic cylinders 27 on both sides push the concave wheels 29 on both sides to approach each other, and the concave wheels 29 on both sides clamp and fix the cable; the No. 4 motor 31 drives the No. 4 gear 32 to rotate, drives the face gear 30 to rotate, drives the concave wheel 29 to rotate, and drives the cable to move toward the middle of the machine body 1;

[0076] The second motor 18 drives the lead screw 16 to rotate through the transmission of the two second gears 19, drives the slider 17 to slide along the slide groove 15, and drives the lifting support plate 6 to move up and down along the storage groove 5; drives the lifting support plate 6 to move upward along the storage groove 5, and pushes the rotating seat 8 to rise and move out from the inside of the storage groove 5, so that the end of the cable is aligned with the grinding disc 9; the first motor 13 drives the first gear 14 to rotate, drives the gear ring 12 to rotate, drives the rotating seat 8 to rotate, drives the grinding discs 9 at both ends to rotate, and the grinding discs 9 grind the ends of the cables to make the ends of the cables smooth;

[0077] After the end of the cable is polished, the lifting assembly drives the lifting support plate 6 and the rotating seat 8 to descend and retract into the storage groove 5, so that the ends of the two sections of the cable are aligned and contacted; the fifth motor 45 drives the fifth gear 44 to rotate through the transmission of the pulley 46 and the belt 47, and drives the third rack 43 and the movable arc plate 42 to slide upward along the fixed arc plate 38, so that the connecting holes on the top of the movable arc plates 42 on both sides are connected; the two movable arc plates 42 and the fixed arc plate 38 cover the outer ring of the cable near the welding part; the water pump 41 draws out the clean water inside the water tank 40, and then diverts it through the pipeline, a part of the clean water is transported to the bottom of a movable arc plate 42, and then transported to the inside of another movable arc plate 42 through the connecting hole on the top of the movable arc plate 42; the other part of the clean water is transported to the inside of the fixed arc plate 38; finally, the two parts of the clean water flow back to the top of the water tank 40 through the pipeline to cool down the cable near the welding part;

[0078] The No. 1 hydraulic cylinder 3 pushes the welding head 4 down so that the welding head 4 is close to the connection of the two sections of the cable to weld the two sections of the cable;

[0079] After the cable welding is completed, the lifting assembly drives the lifting support plate 6 to move upward along the storage groove 5, so that the grinding block 11 on the outer ring of the rotating seat 8 contacts the welding part of the cable, and the driving assembly drives the rotating seat 8 to rotate, driving the grinding block 11 to rotate, and grinding the welding part of the cable; at the same time, the No. 3 motor 26 drives the No. 3 gear 25 to rotate, drives the No. 1 rack 24 and the semicircular ring seat 23 to slide along the arc slide rail 22, drives the No. 2 hydraulic cylinder 27, the C-shaped frame 28 and the concave wheel 29 to rotate, drives the cable to rotate, completes the comprehensive grinding work of the cable welding part, and improves the convenience of the staff's operation;

[0080] When the cable welding and grinding is completed, push the arc clamping plate 36 to slide along the arc groove 35 to separate the arc block 33 from the semicircular ring seat 23, take out the arc block 33, and expose the opening at the top of the semicircular ring seat 23; at the same time, push the assembly to retract the movable arc plate 42 downward to expose the cable in the middle, take out the cable, and insulate the welding part of the cable.

[0081] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cable welding device, characterized in that: The machine body (1) comprises a machine body (1); a top beam (2) is fixedly connected to the middle top surface of the machine body (1); a No. 1 hydraulic cylinder (3) is fixedly connected to the middle of the top surface of the top beam (2); a piston rod of the No. 1 hydraulic cylinder (3) slides through the top of the top beam (2); a welding head (4) is fixedly connected to the bottom end of the piston rod of the No. 1 hydraulic cylinder (3); a receiving groove (5) is provided in the middle of the top surface of the machine body (1); a grinding unit is arranged inside the receiving groove (5); The grinding unit comprises a lifting support plate (6); the lifting support plate (6) is slidably mounted inside the storage groove (5); a pair of brackets (7) are fixedly connected to the top surface of the lifting support plate (6); a rotating seat (8) is rotatably mounted on the top of the two brackets (7); grinding discs (9) are bolted to both ends of the rotating seat (8); a lifting component is provided on one side of the storage groove (5), and the lifting component drives the lifting support plate (6) to lift; a driving component is provided in the middle of the lifting support plate (6), and the driving component drives the rotating seat (8) to rotate; The central outer ring of the rotating seat (8) is provided with an annular groove (10); a plurality of grinding blocks (11) are bolted around the inside of the annular groove (10); the plurality of grinding blocks (11) surround and form a ring; Both ends of the machine body (1) are provided with fixing units; the fixing units include slots (20); the slots (20) are opened at the tops of both ends of the machine body (1); both ends of the machine body (1) are bolted with end plates (21); the inside of the slots (20) and a side of the end plates (21) close to the machine body (1) are fixedly connected with arc-shaped slide rails (22); a semicircular ring seat (23) is slidably mounted between a pair of the arc-shaped slide rails (22); the outer ring of the semicircular ring seat (23) is fixedly connected to a No. 1 rack (24); the bottom of the slot (20) A third gear (25) is rotatably mounted; the third gear (25) is meshed with a first rack (24); a third motor (26) is fixedly connected to a surface of the end plate (21) away from the machine body (1); a rotating shaft of the third motor (26) is fixedly connected to the third gear (25); a second hydraulic cylinder (27) is fixedly connected to both sides of the inner ring of the semicircular ring seat (23); a C-shaped frame (28) is fixedly connected to one end of the second hydraulic cylinder (27) close to the center of the semicircular ring seat (23); a concave wheel (29) is rotatably mounted in the middle of the C-shaped frame (28); The outer ring of the top end of the rotating shaft of the concave wheel (29) is fixedly connected to a face gear (30); the top surface of the C-shaped frame (28) is fixedly connected to a fourth motor (31); the outer ring of the rotating shaft of the fourth motor (31) is fixedly connected to a fourth gear (32); the fourth gear (32) is meshed with the face gear (30); Both sides of the middle of the machine body (1) are provided with cooling units; the cooling units include cooling grooves (37); two cooling grooves (37) are provided on the top surfaces of both sides of the middle of the machine body (1); a semicircular fixed arc plate (38) is fixedly connected to the top of the cooling groove (37); an inner cavity is provided inside the fixed arc plate (38); both sides of the middle of the machine body (1) are provided with through grooves (39); a water tank (40) is fixedly connected inside the through groove (39); a water pump (41) is fixedly connected inside the through groove (39); a water inlet end of the water pump (41) is connected to the water tank (40); 0); movable arc plates (42) are slidably mounted on the outer rings of both ends of the fixed arc plate (38); a connecting hole is provided at the top of the movable arc plate (42); the water outlet of the water tank (40) is connected to the bottom of the movable arc plate (42) and one side of the bottom of the fixed arc plate (38) on one side through a hose; the bottom of the movable arc plate (42) and the other side of the bottom of the fixed arc plate (38) on the other side are connected to the top of the water tank (40) through a pipeline; a pushing component is provided inside the cooling tank (37), and the pushing component pushes the movable arc plate (42) to slide.

2. A cable welding device according to claim 1, characterized in that: The driving assembly comprises a gear ring (12); the gear ring (12) is fixedly connected to an outer ring at one end of a rotating seat (8); a first motor (13) is fixedly connected to a side of the top surface of the lifting support plate (6) close to the gear ring (12); a first gear (14) is fixedly connected to the outer ring of the rotating shaft of the first motor (13); and the first gear (14) is meshed with the gear ring (12).

3. A cable welding device according to claim 1, characterized in that: The lifting assembly comprises a slide groove (15); the slide groove (15) is opened on one side of the storage groove (5); a screw rod (16) is rotatably installed inside the slide groove (15); a slider (17) is slidably installed inside the slide groove (15); the screw rod (16) and the slider (17) are threadedly matched; the slider (17) is bolted to the lifting support plate (6); a second motor (18) is fixedly connected to the top of a side of the body (1) close to the slide groove (15); a second gear (19) is fixedly connected to the outer ring of the rotating shaft of the second motor (18) and the outer ring of the top of the screw rod (16); and the two second gears (19) are meshed with each other.

4. A cable welding device according to claim 1, characterized in that: An arc block (33) is slidably mounted inside the top opening of the semicircular ring seat (23); the arc block (33) and the semicircular ring seat (23) form a ring; a second rack (34) is fixedly connected to the outer ring of the arc block (33); the second rack (34) and the first rack (24) form a gear ring; an inner ring of the arc block (33) and both sides of the inner ring of the opening of the semicircular ring seat (23) are provided with an arc groove (35); an arc clamping plate (36) is slidably mounted inside the arc groove (35); the length of the arc clamping plate (36) is greater than the length of the arc block (33); the length of the arc groove (35) on one side of the semicircular ring seat (23) is greater than the length of the arc clamping plate (36).

5. A cable welding device according to claim 1, characterized in that: The pushing assembly comprises a No. 3 rack (43); the outer ring of the movable arc plate (42) is fixedly connected to the No. 3 rack (43); the top two sides of the cooling groove (37) are rotatably mounted with a No. 5 gear (44); the No. 5 gear (44) is meshed with the No. 3 rack (43); the bottom two sides of the cooling groove (37) are fixedly connected to a No. 5 motor (45); the outer ring of the rotating shaft of the No. 5 motor (45) and one end of the No. 5 gear (44) are fixedly connected to pulleys (46); the outer rings of the two pulleys (46) are provided with belts (47).

6. A welding method for a mineral insulated cable, characterized in that: The welding method adopts a cable welding device according to any one of claims 1 to 5, and the welding method comprises the following steps: S1: peel off the outer skin of the cable end, insert the cable end into the middle of the semicircular ring seat (23), and the No. 2 hydraulic cylinders (27) on both sides push the concave wheels (29) on both sides close together, and the concave wheels (29) on both sides clamp and fix the cable; S2: At this time, the lifting assembly drives the lifting support plate (6) to move upward along the storage groove (5), pushing the rotating seat (8) out of the storage groove (5); at the same time, the driving assembly drives the rotating seat (8) and the grinding disc (9) to rotate; S3: At the same time, the fourth motor (31) drives the concave wheel (29) to rotate, driving the cable to move toward the middle of the machine body (1), so that the end of the cable contacts the grinding disc (9), and the grinding disc (9) grinds the end of the cable; S4: After the end of the cable is polished, the lifting assembly drives the lifting support plate (6) and the rotating seat (8) to be retracted into the receiving groove (5); S5: Then, the concave wheels (29) on both sides continue to drive the cable to move toward the middle of the machine body (1), so that the ends of the two sections of the cable are aligned and in contact; S6: Afterwards, the pushing assembly pushes the movable arc plates (42) on both sides to slide upward along the fixed arc plate (38), so that the connection holes of the two movable arc plates (42) are in contact and connected; so that the two movable arc plates (42) and the fixed arc plate (38) surround the cable; the water pump (41) transports the clean water in the water tank (40) to the inside of the fixed arc plate (38) and the movable arc plate (42), respectively, and then flows back into the water tank (40); S7: The No. 1 hydraulic cylinder (3) pushes the welding head (4) downward so that the welding head (4) is close to the welding position of the two sections of the cable, and the two sections of the cable are welded; S8: After the welding is completed, the lifting assembly drives the lifting support plate (6) and the rotating seat (8) to rise in height, so that the grinding block (11) contacts the welding part of the two cable sections; S9: At the same time, the third motor (26) drives the semicircular ring seat (23) to rotate through the third gear (25) and the first rack (24), driving the cable to rotate, and cooperates with the grinding block (11) to fully grind the welding part of the cable; S10: After the grinding is completed, the cable is taken out and the welding parts of the cable are insulated.

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