High voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine and lead casting process

Abstract

The present application relates to a kind of high-voltage cable accessory and cable corrugated aluminium sheath automatic lead casting machine, including fixed unit, rotating positioning unit, operation system and control module, the operation system is installed on rotating positioning unit, rotating positioning unit is installed on fixed unit, the fixed unit is fixed clamping cable, by control module control fixed unit, rotating positioning unit and operation system are carried out to high-voltage cable accessory and cable corrugated aluminium sheath lead casting, can improve lead casting quality and efficiency, realize lead casting process automation operation.The present application also provides a kind of lead casting process using high-voltage cable accessory and cable corrugated aluminium sheath automatic lead casting machine, simple operation, overcome the defects of low efficiency of high-voltage cable accessory and cable corrugated aluminium sheath artificial lead casting;And cable accessory installation personnel level uneven and process is influenced by the scene operation environment, lead casting is caused by bad, causes the defect of safety accident.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable lead-bushing device, in particular to a high-voltage cable accessory and cable corrugated aluminum sheath automatic lead-bushing machine and lead-bushing process. BACKGROUND

[0002] In order to prevent external moisture intrusion, ensure reliable electrical connection and firm mechanical structure, the high-voltage cable accessory must be reliably connected with the cable corrugated aluminum sheath through lead-bushing to form a good grounding system. The lead-bushing process quality largely determines the service life of the cable terminal or cable intermediate joint. During the on-site construction process, cable insulation burnout conditions are often encountered, and through analysis and research, it is found that most of them are caused by improper operation method of cable lead-bushing or excessive baking time.

[0003] The traditional cable lead-bushing method is manually operated by cable accessory installers at the construction site, and the lead-bushing process requires high skill of the cable accessory installers. Mainly reflected in the following aspects:

[0004] (1) The cable accessory installer needs to master time control, temperature control, lead control and other factors. If the lead-bushing sealing control is not proper, the amount of molten lead and injected lead is not suitable, the preheating area is too large or the temperature is too high during the preheating process, it will affect the mechanical strength of the cable joint and the surface of the main insulation, thereby reducing the service life of the cable joint;

[0005] (2) The thickness of the lead-bushing process in the circumferential direction needs to be uniform and the appearance needs to be beautiful, which requires delicate operation and experience accumulation;

[0006] (3) The installation position of the accessory is mostly narrow and cramped work wells, trenches and interlayers, and the working environment is poor and the working conditions are limited. The installer needs to maintain uncomfortable actions for a long time in a small space, which is not conducive to the stability of the process.

[0007] Due to the uneven level of cable accessory installers, and the process level is easily affected by the on-site working environment, it is easy to lead to poor lead-bushing and cause safety accidents.

[0008] To solve the above technical problems, the present application provides a high-voltage cable accessory and cable corrugated aluminum sheath automatic lead-bushing machine and lead-bushing process. SUMMARY

[0009] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a high-voltage cable accessory and cable corrugated aluminum sheath automatic lead-bushing machine, which can improve the lead-bushing quality and efficiency and realize automatic operation of the lead-bushing process.

[0010] The application also provides a lead casting process using the high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, which is simple to operate and overcomes the defects of low efficiency of manual lead casting of high-voltage cable accessories and cable corrugated aluminum sheaths, and the defects of uneven installation personnel of cable accessories and process affected by the site operation environment, leading to poor lead casting and causing safety accidents.

[0011] The application solves the technical problem by the following technical scheme:

[0012] The application solves the technical problem by the following technical scheme:

[0013] The operation system comprises a transmission unit, a heating mechanism, a shaping feedback mechanism and lead material:

[0014] The transmission unit comprises a hollow stepping motor connected with a screw wire feeding mechanism at the lower end of the screw wire feeding mechanism; the screw wire feeding mechanism comprises a fixed base and a plurality of sets of rubber-coated rollers mounted on the fixed base; the fixed base is sleeved on the upper end of the hollow shaft of the hollow stepping motor, the lead material is wrapped around the centers of the plurality of sets of rubber-coated rollers and sequentially penetrates the fixed base and the hollow shaft; the hollow stepping motor drives the fixed base to rotate, and the plurality of sets of rubber-coated rollers rotate to drive the lead material to move downward for conveying;

[0015] The heating mechanism comprises a medium-frequency heating protection seat, a quartz sleeve, a quartz sleeve fixing plate, a medium-frequency heating coil, a medium-frequency coil fixing plate and a temperature sensor; the medium-frequency heating protection seat is installed at the lower end of the hollow stepping motor, one side of the medium-frequency heating protection seat is provided with the medium-frequency coil fixing plate, the quartz sleeve is installed on the medium-frequency heating protection seat through the quartz sleeve fixing plate, the temperature sensor is sleeved on the quartz sleeve, the temperature sensor surrounds the medium-frequency heating coil in a circle, and the lead material is heated by the medium-frequency heating coil after being inserted into the quartz sleeve;

[0016] The shaping feedback mechanism comprises a coating heating head, a coating heating wire, a pressure-sensitive element and a copper-clad web sealing element; the coating heating head is provided with a pressure-sensitive element through slot in the bottom, the pressure-sensitive element is installed in the pressure-sensitive element through slot, the coating heating head is provided with a circumferential groove in the upper part, the coating heating wire is installed in the circumferential groove, and the copper-clad web sealing element is welded on the bottom end surface of the coating heating head; the lead material heated flows out from the inner center of the coating heating head to cast lead on the high-voltage cable accessory and the cable corrugated aluminum sheath;

[0017] The fixing unit comprises a radial clamping mechanism and an axial adjusting mechanism connected to the radial clamping mechanism, the radial clamping mechanism clamps the cable, and the working system is adjusted in the axial direction of the high-voltage cable accessory and the cable corrugated aluminum sheath through the axial adjusting mechanism.

[0018] The rotating positioning unit comprises a circumferential rotating mechanism and a positioning mechanism, the positioning mechanism is installed on the circumferential rotating mechanism, the circumferential rotating mechanism is installed on the axial adjusting mechanism, and the working system is installed on the circumferential rotating mechanism through the positioning mechanism to position the high-voltage cable accessory and the cable corrugated aluminum sheath.

[0019] Further, the fixing base is provided with a central hole one with a diameter of 10.5 mm, a plurality of roller holes with a diameter of 9.5 mm are arranged on the upper end of the fixing base, the three groups of rubber-coated rollers are different in height by 0.5 mm, each group of rubber-coated rollers is installed on the roller hole through a screw nut, the lead material extends into the central hole one of the fixing base and is wrapped in the center by the three groups of rubber-coated rollers.

[0020] Further, the internal upper end of the intermediate frequency heating protection seat is provided with a U-shaped groove, the intermediate frequency heating coil is installed in the U-shaped groove, and the two ends of the intermediate frequency heating coil pass out of one side of the intermediate frequency heating protection seat; the internal bottom end of the intermediate frequency heating protection seat is provided with a central hole two, and the quartz sleeve extending into the lead material is sequentially embedded in the intermediate frequency heating coil and the central hole two.

[0021] Further, the internal upper end of the coating heating head is provided with a central hole three, and the internal lower end is provided with a lead material flow hole, the quartz sleeve extending into the lead material is embedded in the central hole three, and the lead material heated by the intermediate frequency heating coil flows out through the lead material flow hole.

[0022] Further, the hollow stepping motor is connected with the intermediate frequency heating protection seat through a motor support.

[0023] Further, the radial clamping mechanism comprises a clamping base and a clamping sliding block, one end face of the clamping base is provided with a track, mounting seats are arranged on the clamping base at both ends of the track, a clamping lead screw is mounted on the mounting seat, the clamping sliding block is slidingly installed on the track and the clamping lead screw, the spacing of the clamping sliding block is adjusted by a clamping handle mounted on one end of the clamping lead screw to clamp the cable.

[0024] The axial adjusting mechanism comprises a stepping motor one, a mechanical arm, an optical shaft and a shell base, one end of the shell base is connected with one end of the mechanical arm, the other end of the mechanical arm is connected with the other end face of the clamping base, the clamping base and the shell base are connected through a connecting seat, and the stepping motor one on the upper end of the mechanical arm drives the mechanical arm to drive the shell base to move axially.

[0025] The rotating positioning unit comprises a circumferential rotating mechanism and a positioning mechanism, the positioning mechanism is installed on the circumferential rotating mechanism, the circumferential rotating mechanism is installed on the axial adjusting mechanism, and the work system is installed on the circumferential rotating mechanism through the positioning mechanism;

[0026] The circumferential rotating mechanism comprises a second stepping motor, a driving gear, a rotating disc, a rotating pressing plate and a fixed groove box, the rotating disc is installed in the shell base, the rotating disc is driven to rotate by the second stepping motor driving the driving gear to rotate, and the driving gear and the rotating disc are connected with the shell base through the rotating pressing plate and the fixed groove box;

[0027] The positioning mechanism comprises a third stepping motor, a mounting plate and a guide rail assembly, the mounting plate is installed on the rotating disc, the heating mechanism is installed on the mounting plate through the guide rail assembly, and the third stepping motor drives the lifting lead screw to drive the work system connected to the guide rail assembly to slide.

[0028] A lead casting process of an automatic lead casting machine for high-voltage cable accessories and cable corrugated aluminum sheath, comprising the following steps:

[0029] Step 1, the treated cable is fixed and clamped by the radial clamping mechanism at one end, and the other end passes through the axial adjusting mechanism, and the high-voltage cable accessory is sleeved on the cable corrugated aluminum sheath;

[0030] Step 2, the control module controls the axial adjusting mechanism to adjust the position of the high-voltage cable accessory and the cable corrugated aluminum sheath to be below the copper clad wire sealing element;

[0031] Step 3, the control module controls the circumferential rotating mechanism to drive the work system to rotate to cast lead on the high-voltage cable accessory and the cable corrugated aluminum sheath;

[0032] Step 4, the lead material is placed in the center hole of the fixed base of the spiral lead feeding mechanism, and is wrapped around the center of the three groups of rubber coated rollers;

[0033] Step 5, the control module servo controls the heating temperature of the heating wire inside the coating heating head, and heats the copper clad wire sealing element welded at the lower end of the coating heating head;

[0034] Step 6, the control module servo controls the driving of the hollow stepping motor, the hollow shaft of the hollow stepping motor drives the fixed base to rotate, and the lead material is fed downward by the friction generated by the rotation of the three groups of rubber coated rollers;

[0035] Step 7, the lead material extends into the air shaft, the quartz sleeve inside the intermediate frequency heating protection seat and the center hole three inside the coating heating head in sequence;

[0036] Step 8, the control module servo controls the heating temperature of the intermediate frequency heating coil in the intermediate frequency heating protection seat, and the lead material is heated, and the heating temperature range is 180-200 DEG C, and the temperature sensor on the quartz sleeve in the intermediate frequency heating protection seat feeds back the heating temperature to the control module in real time;

[0037] Step 9, the lead material is heated by the intermediate frequency heating coil, and then flows out through the lead material flow hole, and the pressure sensitive element installed in the pressure sensitive element through slot at the bottom of the coating heating head monitors the compression force value of the copper clad wire sealing element and the cable corrugated aluminum sheath in the process of lead coating and feeds back to the control module;

[0038] Step 10, the softened lead material is coated on the cable corrugated aluminum sheath, and after repeated operation, the thickness of the lead material reaches the required size, the lead coating is completed, and the cooling and shaping is entered.

[0039] The advantages and positive effects of the application are:

[0040] 1. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead coating machine, the screw feeding mechanism comprises a fixed base and a plurality of groups of rubber coating rollers mounted on the fixed base, the plurality of groups of rubber coating rollers are three groups of rubber coating rollers, the height of each group of rubber coating rollers is different by 0.5mm, and the lead material is wrapped around the center of the three groups of rubber coating rollers; the fixed base is sleeved on the upper end of the hollow shaft of the hollow stepping motor, and the hollow stepping motor drives the fixed base to rotate, since there is a height difference between each group of rubber coating rollers, the lead material generates friction force by rotating through the three groups of rubber coating rollers to realize downward feeding.

[0041] 2. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead coating machine, the lead material is inserted into the quartz sleeve and heated by the intermediate frequency heating coil, so that the lead material is prevented from directly contacting the intermediate frequency heating coil.

[0042] 3. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead coating machine, the coating heating head is internally provided with a coating heating wire for heating the copper clad wire sealing element welded at the lower end of the coating heating head, the heating temperature is the same as the temperature of the lead material discharged from the quartz sleeve, and effective crosslinking and fixing of the lead material and the cable corrugated aluminum sheath are ensured.

[0043] 4. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, the copper-clad mesh sealing element is welded on the bottom end surface of the coating heating head, the lead material flows out from the inside center of the coating heating head after heating to cast lead on the high-voltage cable accessory and cable corrugated aluminum sheath, the copper-clad mesh sealing element simultaneously plays a sealing lead limiting role, the surface shape of the copper-clad mesh sealing element is designed differently according to the sealing lead requirements, and the copper-clad mesh sealing element can be designed according to the size of the outer diameter of the cable corrugated aluminum sheath; the inner layer of the copper-clad mesh sealing element is fluorine rubber, and the outer layer is copper mesh, so that the lead material is prevented from being overheated and scalding the element; the copper-clad mesh sealing element casts the lead material in a semi-solid state on the surface of the cable corrugated aluminum sheath, so that the sealing effect is achieved.

[0044] 5. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, the rotating disc can realize ±270° rotation starting from the middle reference position; the two stepping motors two are used, when the rotating disc rotates to a certain angle range, the notch of the rotating disc is directed to one of the two stepping motors two, at this time, the rotating disc continues to rotate through the other stepping motor two; so that 360° operation of the operation system is realized.

[0045] 6. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, after one fixed point is realized, the fixed unit can automatically complete subsequent axial fixed points, displacement and operation, so that position errors caused by multiple size measurements during lead sealing are avoided.

[0046] 7. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, which is flexible in disassembly, assembly and transportation, can be effectively used in complex environments, can improve the lead casting quality and efficiency, and realizes automatic operation of the lead casting process.

[0047] 8. The high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine uses the lead casting process, which is simple to operate, overcomes the defects of low efficiency of manual lead casting of high-voltage cable accessories and cable corrugated aluminum sheaths, and the defects that the installation personnel of the cable accessories have uneven levels and the process is affected by the on-site operation environment, leading to poor lead casting and causing safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 is a working state diagram of the high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine;

[0049] Figure 2 is a working system perspective view of the high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine;

[0050] Figure 3 is another working system perspective view of the high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine;

[0051] Figure 4Side view of the operation system of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application;

[0052] Figure 5 For Figure 4 Sectional view of A-A;

[0053] Figure 6 Stereogram of the medium-frequency heating protection seat of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application;

[0054] Figure 7 Sectional view of the shaping feedback mechanism of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application;

[0055] Figure 8 Stereogram of the fixed unit and rotary positioning unit of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application;

[0056] Figure 9 Stereogram of the fixed unit and rotary positioning unit of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application from another angle;

[0057] Figure 10 Partial exploded view of the axial adjustment mechanism and circumferential rotation mechanism of the automatic lead lining machine for high-voltage cable accessories and cable corrugated aluminum sheath of the application;

[0058] In the figure:

[0059] 1-lead material, 2-spiral wire feeder, 21-fixed base, 22-encapsulated roller, 23-center hole one, 24-roller hole, 3-hollow stepping motor, 4-motor support column, 5-heating mechanism, 51-quartz sleeve fixing plate, 52-quartz sleeve, 53-intermediate frequency heating coil, 54-intermediate frequency heating protection seat, 55-intermediate frequency coil fixing plate, 56-temperature sensor, 57-U-shaped groove, 58-center hole two, 6-shaping feedback mechanism, 61-coating heating head, 62-coating heating wire, 63-pressure sensitive element, 64-copper-clad laminate sealing element, 65-pressure sensitive element through groove, 66-circumferential groove, 67-center hole three, 68-lead material flow hole, 7-hollow shaft, 8-cable, 81-cable corrugated aluminum sheath, 9-high voltage cable accessory, 100-radial clamping mechanism, 101-track, 102-clamping slider, 103-clamping lead screw, 104-clamping handle, 105-clamping base, 106-mounting seat, 200-axial adjustment mechanism, 201-housing base, 202-robotic arm, 203-stepping motor one, 204-optical axis, 300-circumferential rotation mechanism, 301-stepping motor two, 302-driving gear, 303-rotating disc, 304-fixed slot box, 305-rotating pressure plate, 400-positioning mechanism, 401-stepping motor three, 402-guide rail assembly, 403-mounting plate, 404-lifting lead screw, 500-operation system. DETAILED DESCRIPTION

[0060] The application will be further described in detail by specific examples, the following examples are only descriptive, not limiting, and cannot limit the protection scope of the application.

[0061] As shown in Figures 1-10 A high voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine, comprising a fixed unit, a rotating positioning unit, an operation system 500 and a control module, the operation system 500 is installed on the rotating positioning unit, the rotating positioning unit is installed on the fixed unit, the fixed unit clamps the cable 8, and the fixed unit, the rotating positioning unit and the operation system 500 are controlled by the control module to cast lead on the high voltage cable accessory 9 and the cable corrugated aluminum sheath 81.

[0062] As shown in Figures 8-9As shown, the fixing unit comprises a radial clamping mechanism 100 and an axial adjusting mechanism 200 connected to the radial clamping mechanism 100, the radial clamping mechanism 100 clamps the cable 8, and the working system 500 adjusts the axial direction of the high-voltage cable accessory 9 on the cable corrugated aluminum sheath 81 through the axial adjusting mechanism 200. The radial clamping mechanism 100 comprises a clamping base 105 and a clamping sliding block 102, two tracks 101 are arranged in parallel on one end surface of the clamping base 105, a mounting seat 106 is arranged on the clamping base 105 at both ends of the tracks 101, a clamping lead screw 103 is mounted on the mounting seat 106, the clamping sliding block 102 is slidingly mounted on the tracks 101 and the clamping lead screw 103, the spacing of the clamping sliding block 102 is adjusted through a clamping handle 104 mounted on one end of the clamping lead screw 103 to clamp the cable 8; the axial adjusting mechanism 200 comprises a stepping motor one 203, a mechanical arm 202, an optical axis 204 and a housing base 201, the mechanical arm 202 is in two groups, one end surface of the housing base 201 is connected to one end of the mechanical arm 202, the other end of the mechanical arm 202 is connected to the other end surface of the clamping base 105, the clamping base 105 and the housing base 201 are connected through a connecting seat, and the stepping motor one 203 on the upper end of one group of the mechanical arm 202 drives the mechanical arm 202 to drive the housing base 201 to move axially.

[0063] As Figures 8-10As shown, the rotating positioning unit comprises a circumferential rotating mechanism 300 and a positioning mechanism 400, the positioning mechanism 400 is installed on the circumferential rotating mechanism 300, the circumferential rotating mechanism 300 is installed on the axial adjusting mechanism 200, the work system 500 is installed on the circumferential rotating mechanism 300 through the positioning mechanism 400, and the lead cable accessory 9 is connected with the cable corrugated aluminum sheath 81. The circumferential rotating mechanism 300 comprises two step motors two 301, two drive gears 302, a rotating disc 303, a rotating pressing plate 305 and a fixed groove box 304, the step motor two 301 and the drive gear 302 are both two, the rotating disc 303 is installed in the shell base 201, the two step motors two 301 installed on the outer side of the upper end of the shell base 201 drive the two drive gears 302 installed in the shell base 201 to rotate to drive the rotating disc 303 to rotate, the drive gear 302 and the rotating disc 303 are connected with the shell base 201 through the rotating pressing plate 305 and the fixed groove box 304; the positioning mechanism 400 comprises a step motor three 401, a mounting plate 403 and a guide rail assembly 402, the mounting plate 403 is installed on the rotating disc 303, the heating mechanism 5 is installed on the mounting plate 403 through the guide rail assembly 402, and the step motor three 401 drives the lifting lead screw 404 to drive the work system 500 connected to the guide rail assembly 402 to slide. The rotating disc 303 can realize ±270° rotation from the middle reference position; the step motor two 301 is two, when the rotating disc 303 rotates to a certain angle range, the notch of the rotating disc 303 will be directed to one of the step motor two 301, at this time, the rotating disc 303 continues to rotate through the other step motor two 301; so as to realize the 360° work requirement of the work system 500.

[0064] The transmission unit of the system 500 comprises a screw feeding mechanism 2 and a hollow stepping motor 3 connected to the lower end of the screw feeding mechanism 2, the hollow stepping motor 3 is installed on the heating mechanism 5 through a motor support 4; the screw feeding mechanism 2 comprises a fixed base 21 and a plurality of sets of rubber-coated rollers 22 installed on the fixed base 21; the fixed base 21 is sleeved on the upper end of the hollow shaft 7 of the hollow stepping motor 3, the lead material 1 is wrapped around the center of the plurality of sets of rubber-coated rollers 22 and penetrates the fixed base 21 and the hollow shaft 7 in turn; the hollow stepping motor 3 drives the fixed base 21 to rotate, and the plurality of sets of rubber-coated rollers 22 rotate to drive the lead material 1 to move downward; the fixed base is provided with a central hole one 23, the diameter of the central hole one 23 is 10.5mm; the upper end of the fixed base is provided with a plurality of roller holes 24, the diameter of the plurality of roller holes 24 is 9.5mm; the plurality of sets of rubber-coated rollers 22 are three sets of rubber-coated rollers 22, the height of each set of rubber-coated rollers 22 is different by 0.5mm, each set of rubber-coated rollers 22 is installed on the roller hole 24 through a screw nut, the lead material 1 extends into the central hole one 23 of the fixed base and is wrapped around the center by the three sets of rubber-coated rollers 22, due to the height difference of each set of rubber-coated rollers 22, when the three sets of rubber-coated rollers 22 rotate one circle, the lead material 1 realizes downward feeding with a length of 1mm through the friction generated by the rotation of the three sets of rubber-coated rollers 22.

[0065] The heating mechanism 5 comprises a medium frequency heating protection seat 54, a quartz sleeve 52, a quartz sleeve fixing plate 51, a medium frequency heating coil 53, a medium frequency coil fixing plate 55 and a temperature sensor 56, the hollow stepping motor 3 is connected with the medium frequency heating protection seat 54 through the motor support 4. The medium frequency heating protection seat 54 is installed at the lower end of the hollow stepping motor 3, one side of the medium frequency heating protection seat 54 is provided with the medium frequency coil fixing plate 55, the quartz sleeve 52 is installed on the medium frequency heating protection seat 54 through the quartz sleeve fixing plate 51, the temperature sensor 56 is sleeved on the quartz sleeve 52, the temperature sensor 56 surrounds the medium frequency heating coil 53 in circumference, the lead material 1 extends into the quartz sleeve 52 and is heated by the medium frequency heating coil 53 to prevent the lead material 1 from directly contacting the medium frequency heating coil 53. The medium frequency heating protection seat 54 is provided with a U-shaped groove 57 at the upper end inside, the medium frequency heating coil 53 is installed in the U-shaped groove 57, the two ends of the medium frequency heating coil 53 penetrate out of one side of the medium frequency heating protection seat 54 and the medium frequency coil fixing plate 55 installed on the medium frequency heating protection seat 54 at the same time; the medium frequency heating protection seat 54 is provided with a central hole two 58 at the bottom inside, the quartz sleeve 52 extending into the lead material 1 is embedded into the medium frequency heating coil 53 and the central hole two 58 in turn. The medium frequency coil fixing plate 55 and the medium frequency heating protection seat 54 are used for supporting and protecting the medium frequency heating coil 53.

[0066] The shaping feedback mechanism 6 comprises a coating heating head 61, a coating heating wire 62, a pressure sensitive element 63 and a copper clad web sealing element 64, the bottom of the coating heating head 61 is provided with a pressure sensitive element 63 through slot, the pressure sensitive element 63 is installed in the pressure sensitive element 63 through slot, the upper part of the coating heating head 61 is provided with a circumferential groove 66, the coating heating wire 62 is installed in the circumferential groove 66, the copper clad web sealing element 64 is welded on the bottom end surface of the coating heating head 61, the lead material 1 heated flows out from the inside center of the coating heating head 61 to carry out lead casting on the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81, the copper clad web sealing element 64 simultaneously plays a sealing lead limiting role, the surface shape of the copper clad web sealing element 64 is differentially designed according to the lead sealing requirement, and the copper clad web sealing element 64 can be designed according to the outer diameter size of the cable corrugated aluminum sheath 81. The inner layer of the copper clad web sealing element 64 is fluorine rubber, and the outer layer is copper net, so that the lead material 1 is prevented from being scalded by overheating. The copper clad web sealing element 64 casts the lead material 1 in the semi-solid state on the surface of the cable corrugated aluminum sheath 81, so that the sealing effect is achieved. The coating heating head 61 is provided with a center hole three 67 at the upper end inside, and a lead material flow hole 68 at the lower end inside, the quartz sleeve 52 inserted into the lead material 1 is embedded into the center hole three 67, and the lead material 1 is heated by the intermediate frequency heating coil 53 and then flows out through the lead material flow hole 68. The coating heating wire 62 inside the coating heating head 61 heats the copper clad web sealing element 64 welded on the lower end of the coating heating head 61, the heating temperature is the same as the temperature of the lead material 1 poured out by the quartz sleeve 52, so that the lead material 1 and the cable corrugated aluminum sheath 81 are effectively crosslinked and fixed.

[0067] The control module controls the servo control step motor one 203, the step motor two 301, the step motor three 401, the hollow step motor 3 drive, the intermediate frequency heating coil 53 heating temperature, the coating heating wire 62 heating temperature and the pressure threshold of the pressure sensitive element 63, and obtains feedback data.

[0068] The working principle of the high-voltage cable accessory and cable corrugated aluminum sheath automatic lead casting machine is as follows:

[0069] The treated cable 8 is fixed and clamped at one end by the radial clamping mechanism 100, and the other end passes through the axial adjusting mechanism 200, and the high-voltage cable accessory 9 is sleeved on the cable corrugated aluminum sheath 81; the control module controls the axial adjusting mechanism 200 to adjust the position of the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81 to be below the copper clad wire sealing element 64; the control module controls the circumferential rotating mechanism 300 to drive the operation system 500 to rotate and lead the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81 to be soldered; the lead material 1 is placed in the center hole one 23 of the fixed base 21 of the spiral wire feeding mechanism 2, and is wrapped around the center of the three sets of rubber-coated rollers 22, the control module servo controls the internal coating heating wire 62 of the coating heating head 61 to heat the copper clad wire sealing element 64 welded at the lower end of the coating heating head 61; the control module servo controls the hollow stepping motor 3 to drive, the hollow shaft 7 of the hollow stepping motor 3 drives the fixed base 21 to rotate, the lead material 1 is fed downward by the friction generated by the rotation of the three sets of rubber-coated rollers 22, and sequentially passes through the air shaft, the quartz sleeve 52 inside the intermediate frequency heating protection seat 54 and the center hole three 67 inside the coating heating head 61; the control module servo controls the intermediate frequency heating coil 53 inside the intermediate frequency heating protection seat 54 to heat the lead material 1, and the temperature sensor 56 on the quartz sleeve 52 inside the intermediate frequency heating protection seat 54 feeds back the heating temperature to the control module in real time; the lead material 1 heated by the intermediate frequency heating coil 53 flows out through the lead material flow hole 68, and the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81 are soldered, the pressure sensitive element 63 installed in the pressure sensitive element through slot 65 at the bottom of the coating heating head 61 monitors the pressure value of the copper clad wire sealing element 64 and the cable corrugated aluminum sheath 81 in the soldering process and feeds back to the control module; the softened lead material 1 is applied on the cable corrugated aluminum sheath 81, and after repeated operation, the thickness of the lead material 1 reaches the required size, the soldering is completed, and the cooling and shaping is entered.

[0070] A lead soldering process for a high-voltage cable accessory and a cable corrugated aluminum sheath automatic lead soldering machine, comprising the following steps:

[0071] Step 1, one end of the treated cable 8 is fixed and clamped by the radial clamping mechanism 100, the other end passes through the axial adjusting mechanism 200, and the high-voltage cable accessory 9 is sleeved on the cable corrugated aluminum sheath 81;

[0072] Step 2, the control module controls the axial adjusting mechanism 200 to adjust the position of the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81 to be below the copper clad wire sealing element 64;

[0073] Step 3, the control module controls the circumferential rotating mechanism 300 to drive the operation system 500 to rotate and lead the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81 to be soldered;

[0074] Step 4, the lead material 1 is placed in the center hole 23 of the fixed base 21 of the screw feeder 2 and wrapped in the center of the three sets of rubber-coated rollers 22;

[0075] Step 5, the control module controls the heating temperature of the coating heating wire 62 inside the coating heating head 61, and the copper-clad net sealing element 64 welded at the lower end of the coating heating head 61 is heated, the heating temperature is the same as the temperature of the lead material 1 emitted by the quartz sleeve 52, which ensures effective cross-linking and fixing of the lead material 1 and the cable corrugated aluminum sheath 81;

[0076] Step 6, the control module controls the driving of the hollow step motor 3, the hollow shaft 7 of the hollow step motor 3 drives the fixed base to rotate, and the lead material 1 is fed downward by the friction generated by the rotation of the three sets of rubber-coated rollers 22;

[0077] Step 7, the lead material 1 extends into the air shaft, the quartz sleeve 52 inside the intermediate frequency heating protection seat 54, and the center hole three 67 inside the coating heating head 61 in turn;

[0078] Step 8, the control module controls the heating temperature of the intermediate frequency heating coil 53 inside the intermediate frequency heating protection seat 54, and the lead material 1 is heated, the heating temperature range is 190℃, and the temperature sensor 56 on the quartz sleeve 52 inside the intermediate frequency heating protection seat 54 real-time feedback heating temperature to the control module;

[0079] Step 9, after the lead material 1 is heated by the intermediate frequency heating coil 53, it flows out through the lead material flow hole 68, and the lead is cast on the high-voltage cable accessory 9 and the cable corrugated aluminum sheath 81, the pressure sensitive element 63 installed in the pressure sensitive element through slot 65 at the bottom of the coating heating head 61 real-time monitors the pressure value of the copper-clad net sealing element 64 and the cable corrugated aluminum sheath 81 in the lead casting process and feedback to the control module, so as to accurately judge the density of the lead casting;

[0080] Step 10, the softened lead material 1 is applied on the cable corrugated aluminum sheath 81, and after repeated operation, the thickness of the lead material 1 reaches the required size, the lead casting is completed, and the cooling and shaping is entered.

[0081] Although the embodiments and drawings of the present application are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present application and the appended claims, therefore, the scope of the present application is not limited to the disclosed content of the embodiments and drawings.

Claims

1. A high voltage cable accessory and cable corrugated aluminium sheath automatic lead-bushing machine characterised in that: The utility model provides a kind of high-voltage cable accessory and cable corrugated aluminium sheath lead-burning device, including fixed unit, rotating positioning unit, operation system and control module, the operation system is installed on rotating positioning unit, rotating positioning unit is installed on fixed unit, fixed unit is fixed clamping cable, and fixed unit, rotating positioning unit and operation system are controlled by control module to high-voltage cable accessory and cable corrugated aluminium sheath lead-burning; The operation system includes a transmission unit, a heating mechanism, a shaping feedback mechanism, and a lead material: The transmission unit includes a hollow stepping motor connected to a screw wire feeding mechanism at its lower end; the screw wire feeding mechanism includes a fixed base and a plurality of sets of rubber-coated rollers mounted on the fixed base; the fixed base is sleeved on the upper end of the hollow shaft of the hollow stepping motor, the lead material is wrapped around the center of the plurality of sets of rubber-coated rollers and sequentially passes through the fixed base and the hollow shaft; the hollow stepping motor drives the fixed base to rotate, and the plurality of sets of rubber-coated rollers rotate to drive the lead material to move downward and be conveyed; The heating mechanism includes a medium-frequency heating protection seat, a quartz sleeve, a quartz sleeve fixing plate, a medium-frequency heating coil, a medium-frequency coil fixing plate, and a temperature sensor; the medium-frequency heating protection seat is installed at the lower end of the hollow stepping motor; one side of the medium-frequency heating protection seat is provided with the medium-frequency coil fixing plate; the quartz sleeve is installed on the medium-frequency heating protection seat through the quartz sleeve fixing plate; the temperature sensor is sleeved on the quartz sleeve; the temperature sensor surrounds the medium-frequency heating coil in a circular manner; and the lead material is heated by the medium-frequency heating coil when it extends into the quartz sleeve. The shaping feedback mechanism includes a coating heating head, a coating heating wire, a pressure-sensitive element, and a copper-clad web sealing element; the bottom of the coating heating head is provided with a pressure-sensitive element through slot; the pressure-sensitive element is installed in the pressure-sensitive element through slot; the upper part of the coating heating head is provided with a circumferential groove; the coating heating wire is installed in the circumferential groove; and the copper-clad web sealing element is welded on the bottom end surface of the coating heating head; the heated lead material flows out from the center of the coating heating head to perform lead-burning on the high-voltage cable accessory and the cable corrugated aluminium sheath. The fixed unit includes a radial clamping mechanism and an axial adjusting mechanism connected to the radial clamping mechanism; the radial clamping mechanism is fixed to clamp the cable; and the operation system is adjusted in the axial direction on the high-voltage cable accessory and the cable corrugated aluminium sheath by the axial adjusting mechanism. The rotating positioning unit includes a circumferential rotating mechanism and a positioning mechanism; the positioning mechanism is installed on the circumferential rotating mechanism; the circumferential rotating mechanism is installed on the axial adjusting mechanism; and the operation system is installed on the circumferential rotating mechanism by the positioning mechanism to perform lead-burning on the high-voltage cable accessory and the cable corrugated aluminium sheath.

2. A machine for automatic lead potting of high voltage cable accessories and cable corrugated aluminium sheaths according to claim 1, characterized in that: The fixed base is provided with a central hole one with a diameter of 10.5 mm; the upper end of the fixed base is circumferentially provided with a plurality of roller holes with a diameter of 9.5 mm; the plurality of sets of rubber-coated rollers are three sets of rubber-coated rollers; the height of each set of rubber-coated rollers differs by 0.5 mm; each set of rubber-coated rollers is installed on the roller hole by screws and nuts; the lead material extends into the central hole one of the fixed base and is wrapped in the center by the three sets of rubber-coated rollers.

3. The automatic lead-bushing machine for high-voltage cable accessories and cable corrugated aluminium sheaths according to claim 1, characterized in that: The upper end of the internal frequency heating protection seat is provided with a U-shaped groove, the internal frequency heating coil is installed in the U-shaped groove, and the two ends of the internal frequency heating coil pass through one side of the internal frequency heating protection seat.

4. The automatic lead-bushing machine for high-voltage cable accessories and cable corrugated aluminium sheaths according to claim 1, characterized in that: The upper end of the internal frequency heating protection seat is provided with a U-shaped groove, the internal frequency heating coil is installed in the U-shaped groove, and the two ends of the internal frequency heating coil pass through one side of the internal frequency heating protection seat.

5. The automatic lead-bushing machine for high-voltage cable accessories and cable corrugated aluminium sheaths according to claim 1, characterized in that: The hollow stepping motor is connected with the internal frequency heating protection seat through the motor support column.

6. The automatic lead-bushing machine for high-voltage cable accessories and cable corrugated aluminium sheaths according to claim 1, characterized in that: The radial clamping mechanism comprises a clamping base and a clamping sliding block, one end surface of the clamping base is provided with a track, mounting seats are arranged on the clamping base at both ends of the track, a clamping lead screw is mounted on the mounting seat, the clamping sliding block is slidingly installed on the track and the clamping lead screw, the spacing of the clamping sliding block is adjusted by a clamping handle mounted on one end of the clamping lead screw, and the cable is fixed; The axial adjusting mechanism comprises a stepping motor one, a mechanical arm, an optical shaft and a shell base, one end surface of the shell base is connected with one end of the mechanical arm, the other end of the mechanical arm is connected with the other end surface of the clamping base, the optical shaft connects the clamping base and the shell base through a connecting seat, and the stepping motor one on the upper end of the mechanical arm drives the mechanical arm to drive the shell base to move axially. The rotating positioning unit comprises a circumferential rotating mechanism and a positioning mechanism, the positioning mechanism is installed on the circumferential rotating mechanism, the circumferential rotating mechanism is installed on the axial adjusting mechanism, and the work system is installed on the circumferential rotating mechanism through the positioning mechanism. The circumferential rotating mechanism comprises a stepping motor two, a driving gear, a rotating disc, a rotating pressing plate and a fixed groove box, the rotating disc is installed in the shell base, the rotating disc is driven to rotate by the driving gear driven by the stepping motor two, and the driving gear and the rotating disc are connected with the shell base through the rotating pressing plate and the fixed groove box. The positioning mechanism comprises a stepping motor three, a mounting plate and a guide rail assembly, the mounting plate is installed on the rotating disc, the heating mechanism is installed on the mounting plate through the guide rail assembly, and the work system connected with the guide rail assembly is driven to slide by the lifting lead screw driven by the stepping motor three.

7. A process for automatic lead encasement of a high voltage cable accessory with a cable corrugated aluminium sheath using the machine of claim 1, characterized in that: The steps comprise: Step 1, one end of the treated cable is fixed and clamped through the radial clamping mechanism, the other end passes through the axial adjusting mechanism, and the high-voltage cable accessory is sleeved on the cable corrugated aluminum sheath; Step 2, the control module controls the axial adjusting mechanism to adjust the position of the leaded high-voltage cable accessory and the cable corrugated aluminum sheath to be below the copper-clad mesh sealing element; Step 3, the control module controls the circumferential rotating mechanism to drive the work system to rotate to lead the high-voltage cable accessory and the cable corrugated aluminum sheath; Step 4, the lead is placed in the center hole one of the fixed base of the spiral wire feeding mechanism and wrapped around the three groups of rubber-coated rollers; Step 5, the control module serves to control the heating temperature of the heating wire in the internal coating heating head, and the copper-clad mesh sealing element welded at the lower end of the coating heating head is heated. Step 6, the control module servo controls the hollow step motor drive, the hollow shaft of the hollow step motor drives the fixed base to rotate, the lead material passes through three groups of rubber-coated rollers to rotate to generate friction force to realize downward feeding; Step 7, the lead material sequentially extends into the air shaft, the quartz sleeve inside the intermediate frequency heating protection seat and the center hole inside the coating heating head; Step 8, the control module servo controls the heating temperature of the intermediate frequency heating coil inside the intermediate frequency heating protection seat, heats the lead material, the heating temperature range is 180-200 DEG C, and the temperature sensor on the quartz sleeve inside the intermediate frequency heating protection seat feeds back the heating temperature to the control module in real time; Step 9, after the lead material is heated by the intermediate frequency heating coil, it flows out through the lead material flow hole, and the pressure sensitive element installed in the pressure sensitive element through slot at the bottom of the coating heating head monitors the compression force value of the copper clad laminate sealing element and the cable corrugated aluminum sheath in the process of lead lining and feeds back to the control module; Step 10, the softened lead material is coated on the cable corrugated aluminum sheath, and after repeated operation, the lead material thickness reaches the required size, the lead lining is completed, and the cooling and shaping is entered.

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