CN210668945U

CN210668945U - Lead automatic crimping system of ground wire

Info

Publication number: CN210668945U
Application number: CN201921919002.5U
Authority: CN
Inventors: 刘宏达; 李林峰; 蔡伟; 刘建锋; 景国明; 高晓莉; 马守锋
Original assignee: Henan Electric Power Boda Technology Co ltd; State Grid Corp of China SGCC; Henan Power Transmission and Transformation Construction Co Ltd
Current assignee: Henan Electric Power Boda Technology Co ltd; State Grid Corp of China SGCC; Henan Power Transmission and Transformation Construction Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-06-02
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses an automatic crimping system of ground wire leads, include: the wire cutting module, the wire stripping module, the wire crimping control and execution module and the hydraulic pump station module are arranged in the wire cutting module; the wire cutting module, the wire compression joint control and execution module and the hydraulic pump station module are quickly disassembled and connected through a quick joint and a cable; wherein, the wire crimping control and execution module includes: the clamping mechanism is used for clamping the lead in the process of crimping the lead; two crimping pliers are arranged in the moving direction of the lead and are respectively a steel die crimping pliers and an aluminum die crimping pliers which are respectively used for steel die crimping and aluminum die crimping; the crimping pliers mainly comprise a crimping pliers mechanism and a pressing plate mechanism and are used for crimping the lead; and the rack platform is used for installing a clamping mechanism and a crimping clamp and is used as a wire crimping operation platform. The utility model discloses can be the biggest improvement crimping process automatic, reduce the influence of human factor, improve wire crimping efficiency of construction, guarantee wire crimping construction quality.

Description

Lead automatic crimping system of ground wire

Technical Field

The utility model relates to a transmission line engineering field especially relates to an automatic crimping system of ground wire leads.

Background

With the rapid development of electric power in China, the requirement of transmission capacity is continuously improved, and the requirements of inter-regional networking and high-power electric energy transmission are more prominent. Therefore, national grid companies comprehensively analyze the energy resource distribution, the energy transmission demand and the development and change trend in China from the high level of the energy strategy in China, and determine the major strategic measures for constructing the extra-high voltage power grid. According to the national power grid construction general plan, a 'Sanhua' synchronous power grid forms a 'five-vertical six-horizontal' extra-high voltage main grid frame in 2020, and a strong intelligent power grid is basically built.

Meanwhile, in recent years, the construction of the power transmission line adopts a multi-split construction mode, the task of continuous crimping of the lead is obviously increased, the crimping operation of the lead and the ground wire of the power transmission line is an important hidden project, and the crimping quality directly influences the long-term safe operation of the later-period power grid line.

At present, the construction site mainly adopts an operation mode of manually using simple crimping pliers to crimp the ground wire. The whole processes of cleaning, pre-pressing measurement, printing, wire breaking, pipe threading, pressing, post-pressing measurement and the like are all manual operations, the pressing quality completely depends on the technical level and responsibility of field pressing workers, the quality problems that the post-pressing size cannot meet the requirement, the pressing positioning size has overlarge deviation, the post-pressing bending is out of tolerance and the like easily occur, the pressing quality is not easy to control, and the pressing efficiency is low. The national network operation inspection department carries out the X-ray nondestructive testing work of the crimping quality on important three-span lines, about 70% of the crimping tubes to be inspected have the crimping quality defect, but less than 10% of the grip strength is influenced, 30% of the crimping quality defect is pressure leakage at the concave-convex groove, and field data shows that the crimping quality needs to be improved urgently.

The wire crimping is one of key processes in the construction of a power transmission line, a wire crimping machine is a necessary tool for wire crimping, the wire crimping machine is widely applied to the construction of the power transmission line, common wire crimping machines comprise a hydraulic crimping machine and an electric crimping machine, manufacturers aiming at wire crimping equipment in China are very many, common tonnage is 300 tons, 250 tons, 200 tons, 125 tons, 100 tons or less, and the types of the wire crimping machines are mostly manually crimped. At present, the research work of the automatic crimping machine is also available in China.

The utility model discloses a lead ground wire automatic crimping machine is disclosed like publication number CN107681407A, including the crimping platform, be located the crimping device on the crimping platform and establish the wire stripping device in crimping device left side frame, the wire stripping device includes power unit, wire stripping mechanism and first ground wire clamping mechanism of leading, power unit passes through drive mechanism and is connected with the transmission of wire stripping mechanism, the wire stripping mechanism is including the cutter unit spare that is used for the wire stripping and the supporting component who is used for supporting the cutter unit spare, the cutter unit spare is including being circular motion and radially movable's wire stripping blade around leading the ground wire, first ground wire clamping mechanism of leading is used for the centre gripping to lead the ground wire. The utility model discloses with tangent line device, wire stripping device, crimping device set on a crimping platform, be convenient for lead the crimping of ground wire, the security is high, easy operation has improved work efficiency: utilize the tangent line device to carry out the tangent line, utilize the wire stripping device to carry out the wire stripping, the machining precision is higher and has reduced low in labor strength.

Utility model discloses a lead ground wire hydraulic pressure and connect operation platform like notice number CN202513432U belongs to the machines that are used for using the crimping pipe to carry out hydraulic connection with two electric power lead ground wires. Two tracks are parallelly erected on the platform base, two ground wire supporting seats are arranged on the left side and the right side of the two tracks through sliding blocks, the hydraulic tongs are fixed in the fixing ring through a plurality of fastening bolts, the fixing ring is welded on the mounting plate, and the mounting plate is arranged on the two tracks through four sliding blocks fixed on the lower portion of the mounting plate. Step motor sets up on the platform base, and ball is connected with step motor shaft, and ball is installed in platform base below through two slide rail support, and ball connects soon on screw nut, and screw nut fixes on the mounting panel bottom surface. The novel crimping device has the characteristics of simple structure, safety, reliability, controllable lapping length of the two ground wires and high crimping efficiency.

For example, the utility model with the publication number CN106532586B discloses an automatic wire crimping device, wherein a crimping mechanism (1) and a hydraulic mechanism (2) are arranged on a small moving frame (3), and the small moving frame (3) drives a screw rod (4) to rotate through a motor (5) and horizontally reciprocate on a large moving frame (6); a feed screw of the screw rod (4) passes through the large moving frame (6) and is connected with the motor (5); a fixing mechanism (7) is arranged on the right end plate of the large moving frame (6), and an anchor hole is formed in the center of the fixing mechanism (7) and is aligned with the crimping center line of the crimping mechanism (1); a displacement sensor (9) for sensing the position of the small moving frame (3) is arranged on the right end plate of the large moving frame (6), and the sensing signal is transmitted to the control end of the motor (5) and the hydraulic mechanism (2) through line connection; the lifting mechanism (10) is arranged on the left side above the large moving frame (6). The utility model discloses can adjust crimping length, step, reduce the crimping error, reduce intensity of labour, improve crimping efficiency, ensure processingquality

The degree of automation of the crimping process of above-mentioned scheme is lower, and the influence of human factor is still great, still has the problem in the aspect of improving wire crimping efficiency of construction, guaranteeing wire crimping construction quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem among the prior art, provide an automatic crimping system of ground wire leads.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an automatic ground wire crimping system comprising:

the wire cutting module is used for realizing the wire cutting action on the wire and adjusting the length of the wire joint size before the wire is crimped;

the wire stripping module is used for stripping wires and stripping an external aluminum wire layer of the wires after cutting; the wire stripping module is connected with a power source which independently provides power for the wire stripping module;

the wire crimping control and execution module is used for realizing the crimping action and the die moving action of the wire;

the hydraulic pump station module is used for providing power for the tangent module and the lead crimping control and execution module;

the wire cutting module, the wire compression joint control and execution module and the hydraulic pump station module are quickly disassembled and connected through a quick joint and a cable;

wherein, the wire crimping control and execution module includes:

the clamping mechanism is used for clamping the lead in the process of crimping the lead;

two crimping pliers are arranged in the moving direction of the lead and are respectively a steel die crimping pliers and an aluminum die crimping pliers which are respectively used for steel die crimping and aluminum die crimping; the crimping pliers mainly comprise a crimping pliers mechanism and a pressing plate mechanism and are used for crimping the lead;

and the rack platform is used for installing a clamping mechanism and a crimping clamp and is used as a wire crimping operation platform.

Also included is a generator module for powering the entire system.

The wire cutting module comprises a cutting knife rest, an upper cutting knife, a lower cutting knife and a wire cutting hydraulic cylinder, wherein the lower cutting knife is fixed on the cutting knife rest, the upper cutting knife is installed on a slide rail of the cutting knife rest, the wire cutting hydraulic cylinder is installed at the top end of the cutting knife rest and connected with the upper cutting knife, the hydraulic pump station module drives the wire cutting hydraulic cylinder to drive the upper cutting knife to move downwards to a lower stop point along the slide rail, and the upper cutting knife and the lower cutting knife form shearing movement to finish the shearing action of the wire.

The wire stripping module comprises a wire stripping seat, an upper wire stripping cutter seat, a lower wire stripping cutter seat and a wire stripping electric cylinder, wherein guide rods extending in the vertical direction are arranged on two sides of the wire stripping seat in parallel; the cutting edges of the upper and lower stripping knives are oppositely provided with semi-circular grooves, and the two semi-circular grooves are butted to form a reserved opening matched with the wire steel core;

the wire stripping electric cylinder is arranged at the top end of the wire stripping seat and connected with the upper stripping knife seat, the power source is a storage battery, the storage battery is fixedly arranged on the wire stripping seat and provides power for the wire stripping electric cylinder, the battery drives the wire stripping electric cylinder to drive the upper stripping sheet to move downwards to a lower limit point along the guide rod, the upper stripping knife and the lower stripping knife complete stripping of an aluminum conductor layer on a conductor, and only a conductor steel core is left.

The clamping mechanism mainly comprises a bottom plate, two clamping sleeve seats, a base, a rolling sleeve and a clamping oil cylinder, wherein the two clamping sleeve seats are oppositely arranged on the left and the right, and respectively comprise a left clamping sleeve seat fixedly arranged on the base and a right clamping sleeve seat connected with the clamping oil cylinder; rolling sleeves are respectively arranged on the front side and the rear side of the clamping space on the base.

The clamping mechanisms are respectively arranged at the front side and the rear side of the crimping pliers.

The pressing clamp mechanism mainly comprises a die, a pressing clamp oil cylinder and an installation bottom plate, wherein the die is oppositely arranged at the left and the right to form transverse pressing connection, a pressing connection cavity is formed between the two dies, and the two dies are respectively connected with the piston end of the pressing clamp oil cylinder fixed on the installation bottom plate; a boss extending in the vertical direction is arranged at one end, close to the extending end of the piston rod, of the cylinder body of the pressing clamp oil cylinder, and the downward part of the boss is embedded on the mounting bottom plate;

the steel die crimping pliers and the aluminum die crimping pliers have different die specifications.

The pressing plate mechanism comprises a pressing plate arranged above the corresponding pressing clamp mechanism, and a limiting groove is arranged on the pressing plate corresponding to the upward part of the boss; the pressing plate is connected with a pressing plate oil cylinder which drives the pressing plate to move up and down, and the pressing plate oil cylinder is fixed on a pressing plate oil cylinder bracket; when the pressing plate works, the pressing plate moves towards the direction of the pressing clamp mechanism under the driving of the pressing plate oil cylinder, and when the pressing plate reaches the boss position of the pressing clamp oil cylinder, the upward part of the boss is embedded into the limiting groove on the pressing plate to form limiting fit.

The frame platform is also provided with a mould moving mechanism, the mould moving mechanism comprises a linear guide rail arranged along the front-back direction and a moving platform in sliding fit with the linear guide rail, the crimping pliers are arranged on the moving platform, and the frame platform is also provided with a mould moving driving device for driving the moving platform to reciprocate along the linear guide rail.

Still including cover door mechanism, cover door mechanism is equipped with the box including the frame that supports rack platform around including the frame of support rack platform, rack platform is last, and the box is fixed on the frame, and the rack platform upside is equipped with the cover door that the frame platform was established to the cover, and the cover door passes through hinge hinged joint with the box, and the cover door links to each other through the cover door hydro-cylinder between door and the frame, and cover door hydro-cylinder drive cover door opens and shuts for the box.

The utility model has the advantages that:

1. the utility model discloses can be the biggest improvement crimping process automatic, reduce the influence of human factor, improve wire crimping efficiency of construction, guarantee wire crimping construction quality.

2. The utility model discloses have tangent line, wire stripping, automatic crimping function, can press the shape and the size of regulation with the wire automatic pressing who has worn the splicing sleeve, reach the crimping requirement.

3. The utility model discloses a crimping pincers have arranged two, are steel mould crimping pincers and aluminium mould crimping pincers respectively. The steel pipe compression joint and the aluminum pipe compression joint are completed by two sets of compression joint tongs, so that the cylinder diameter of the oil cylinder can be effectively reduced, and the weight of the hydraulic tongs is reduced; the matched steel die and the aluminum die are installed and fixed, so that die replacement is avoided, the crimping efficiency is high, and the wire crimping quality is controllable.

4. The utility model adopts hydraulic drive for the middle tangent module and the wire crimping control and execution module, and can be used with the pump station of the conventional crimping machine; the wire stripping module is handheld, adopts independent power source drive, and light in weight, convenient operation.

Drawings

Fig. 1 is a schematic structural view of a middle cutting line module of the present invention;

fig. 2 is a longitudinal section of the middle cutting line module of the present invention;

fig. 3 is a schematic structural diagram of a middle wire stripping module of the present invention;

fig. 4 is a top view of the wire crimping control and execution module of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line C-C of FIG. 4;

FIG. 6 is a left side view of FIG. 4;

fig. 7 is a schematic structural view of a clamping mechanism according to the present invention;

FIG. 8 is a top view of FIG. 7;

fig. 9 is a schematic structural view of the middle pressure clamp mechanism of the present invention;

FIG. 10 is a schematic sectional view taken along line A-A of FIG. 9;

fig. 11 is a schematic sectional view taken along line B-B of fig. 9.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 10, the utility model discloses an automatic crimping system of ground wire, include:

the generator module is used for providing power for the whole system and is suitable for being used in the working environment without an external power supply, such as the field and the like.

In the embodiment, the wire cutting module and the wire crimping control and execution module adopt hydraulic drive and can be matched with a pump station of a conventional crimping machine for use; the wire stripping module is handheld, adopts independent power source drive, and light in weight, convenient operation.

When conducting wire compression joint, the modules can be quickly connected through the quick connector and the cable; when a transition is needed, the movable platform can be quickly disassembled and lifted and transported by adopting conventional transportation equipment.

As shown in fig. 1-2, the wire cutting module is used to temporarily adjust the length of the wire bonding dimension before wire crimping. The wire is typically cut to a size near the crimp location. The cutting mode adopts a mode of shearing at a calibrated section. The cutting module comprises a cutting knife rest 11, an upper cutting knife 12, a lower cutting knife 13 and a cutting hydraulic cylinder 14, wherein the cutting knife rest 11 is designed into a plate door-shaped structure, the lower cutting knife 13 is fixed on the cutting knife rest 11, and the upper cutting knife 12 is installed on a slideway of the cutting knife rest 11, so that the upper cutting knife 12 can move up and down along the slideway.

In this embodiment, the blade cuts of the upper blade 12 and the lower blade 13 are formed in an arc shape to increase the unit cutting area and improve the cutting force. The cutting edge is designed into a shield surface with the thickness of 1-1.5 mm, so that the steel strand can be smoothly cut off without generating gaps, and the service life is prolonged. The cutter frame 11 is also provided with an auxiliary handle 15 which is convenient to move.

The tangent module driving mode adopts hydraulic drive, can be used with the crimping machine pump station is supporting, adopts hydraulic hose to connect between pump station and the tangent mechanism. A thread cutting hydraulic cylinder 14 is arranged at the top end of the cutter frame 11, and a cylinder rod moves downwards and is connected with the upper cutter 12. When the system sends a wire cutting instruction, the hydraulic pump station module drives the wire cutting hydraulic cylinder 14 to drive the upper blade 12 to move downwards to the bottom dead center along the slide way, the upper blade 12 and the lower blade 13 form a shearing motion, and the shearing motion of the wire is completed.

In this embodiment, the bottom dead center is realized through the tangent line locating piece 16 installed at the cutter holder 11, and the tangent line locating piece 16 is in butt fit with the blade holder of the upper cutter 12.

The working pressure of a hydraulic system in the wire cutting module is set to be 60Mpa, so that the one-time cutting of the conducting wire is ensured. The hydraulic control oil circuit adopts an electromagnetic directional valve to control the telescopic action of the hydraulic cylinder. In addition, a one-way throttle valve is arranged between the oil cylinder and the reversing valve, so that the oil cylinder acts stably and cuts uniformly in the working process stage; in the quick-return stage, the oil cylinder directly returns oil quickly through the one-way valve, so that the blade is quickly retracted. Therefore, the working efficiency of the thread cutting module is improved.

As shown in fig. 3, after the wire stripping module strips the cut aluminum wire layer outside the wire, a steel core with a specified size is left to prepare for crimping the steel core. After wire stripping operation, the steel core needs to be manually threaded, and the working position of the steel core needs to be flexibly placed according to the field environment. Therefore, the wire stripping module adopts an independent working mode relative to other modules in design, namely, the wire stripping module is provided with an independent power source, and an operator can flexibly move. The power source for independently providing power for the wire stripping module is a storage battery 25.

The wire stripping module comprises a wire stripping seat 21, an upper stripping knife seat 22, a lower stripping knife seat 23 and a wire stripping electric cylinder 24, wherein guide rods 26 extending in the vertical direction are arranged on two sides of the wire stripping seat 21 in parallel, the lower stripping knife seat 23 is fixed on the wire stripping seat, a lower stripping knife with an upward cutting edge is installed at the lower stripping knife seat 23, the upper stripping knife seat 22 is installed on the guide rods 26 on two sides of the wire stripping seat 21 in a sliding manner, and an upper stripping knife with a downward cutting edge is installed at the upper stripping knife seat 22; the cutting edges of the upper and lower peeling knives are relatively provided with semi-circular grooves 27, and the two semi-circular grooves 27 are butted to form a reserved opening matched with the wire steel core.

The wire stripping electric cylinder 24 is arranged at the top end of the wire stripping seat and connected with the upper stripping knife seat 22, the storage battery 25 is fixedly arranged on the wire stripping seat and provides power for the wire stripping electric cylinder 24, the wire stripping electric cylinder 24 drives the upper stripping sheet to move downwards to a lower limit point along the guide rod 26, and the upper stripping knife and the lower stripping knife complete stripping of an aluminum conductor layer on a conductor, but only a conductor steel core is left.

In this embodiment, the lower limit point is realized by the positioning and abutting cooperation of the lower stripper seat 23 and the upper stripper seat 22, so that the steel core of the wire is protected from being damaged.

The upper stripping knife is detachably arranged at the upper stripping knife seat 22 through a bolt, the lower stripping knife is detachably arranged at the lower stripping knife seat 23 through a bolt, and the design ensures that the stripping module can adapt to 400mm²－1250mm²Wire gauge of cross-sectional area. When the wire stripping device is used, only the blade corresponding to the specification of the wire is required to be installed, and the wire can be stripped.

And (4) manually penetrating the wire after stripping the wire, and then performing compression joint.

As shown in fig. 4 to 6, the wire crimping control and execution module includes:

the clamping mechanism 3 is mainly used for clamping the lead in the process of crimping the lead and preventing the lead from moving to cause an unexpected crimping result;

the crimping pliers 4 mainly comprise a crimping pliers mechanism 5 and a pressing plate mechanism 6 and are mainly used for crimping the wire connecting tube into a product meeting the standard; two crimping pliers 4 are arranged along the moving direction of the lead and are respectively a steel die crimping pliers and an aluminum die crimping pliers which are respectively used for steel die crimping and aluminum die crimping. The corresponding steel mold specification is phi 24x120mm, and the aluminum mold specification is phi 60x690 mm. In order to realize automatic crimping in the whole process, according to the obvious difference of the die parameters, the crimping mode is designed to adopt two sets of die devices and two sets of crimping oil cylinders which are respectively used for crimping a steel die and an aluminum die;

the die moving mechanism 7 is mainly used for rapidly and safely moving the crimping pliers 4 to a target position;

the frame platform 8 is used for installing the clamping mechanism 3, the crimping pliers 4 and the die moving mechanism 7 and is used as a lead crimping operation platform;

cover door mechanism 9, its effect is the safety of guarantee crimping in-process personnel, simultaneously, when automatic crimping machine was out of work, prevents that dust and rainwater from entering into inside the machine.

As shown in fig. 7 to 8, the clamping mechanism is an auxiliary mechanism for wire crimping, and functions to clamp the wire as required and as needed when crimping steel and aluminum pipes, preventing the wire from being undesirably moved and twisted. The clamping mechanisms 3 are arranged simultaneously on both the front and rear sides of the crimping pliers 4. The clamping mechanism 3 mainly comprises a clamping sleeve seat, a base 34, a rolling sleeve 35 and a clamping oil cylinder 36.

The left clamping sleeve seat and the right clamping sleeve seat are oppositely arranged, namely a left clamping sleeve seat 32 fixedly arranged on the base and a right clamping sleeve seat 33 connected with a clamping oil cylinder 36, and the right clamping sleeve seat 33 is matched with the base in a sliding and guiding manner. The clamping cylinder 36 is fixedly mounted on the base 34 and is connected with the right clamping sleeve 33 through a cylinder pressure head.

Clamping sleeves 37 are respectively arranged on the opposite sides of the left clamping sleeve seat and the right clamping sleeve seat, and a clamping space for a lead is formed between the two clamping sleeves 37; rolling sleeves 35 are respectively disposed on the front and rear sides of the clamping space on the base 34. The rolling sleeve 35 is arranged on the mounting seat 38, and the mounting seat 38 is connected with the base through a height-adjustable structure. The height adjustable structure comprises an up-and-down long hole 31 arranged on the mounting seat, and a fastening bolt penetrates through the long hole 31 to realize the fastening connection of the mounting seat 38 and the base 34.

When the system sends a clamping instruction, the oil cylinder pressure head on the clamping oil cylinder 36 and the right clamping sleeve seat 33 move towards the left clamping sleeve seat 32, when the clamping sleeve 37 clamps a wire, the pressure of the oil cylinder rises, and when the pressure reaches the clamping pressure, the oil cylinder maintains the pressure; when the system sends a loosening instruction, the clamping oil cylinder drives the clamping sleeve seat to return, and when the right clamping sleeve seat 33 returns to a set position, the hydraulic system stops supplying oil. The mechanism formed by the mounting seat 38 and the rolling sleeve 35 enables the clamping device to conveniently adjust the central positions of the conducting wire and the clamping sleeve when a clamping command is executed, and ensures that the conducting wire is not damaged in the clamping process.

As shown in fig. 4 to 6, the design of the crimping pliers 4 includes two parts, namely a crimping pliers mechanism 5 and a pressing plate mechanism 6, and the crimping pliers mechanism 5 is designed to move horizontally as a crimping main movement. The pressing plate mechanism 6 is designed to move up and down and is used as auxiliary limiting movement of crimping.

Because there is obvious drawback in conventional perpendicular crimping mode, the crimping pincers cause the pincers body often to produce the adhesion with the crimping pipe surface because huge crimping force after the crimping, need separate with the help of external force. Therefore, the conventional crimping method has a great influence on the quality of crimping and the crimping operation.

The utility model discloses crimping pincers working method has avoided the production of above-mentioned problem from the root. It adopts the transverse crimping mode of crimping pliers, i.e. the crimping movement direction is perpendicular to the positioning direction of crimping pipe. The mode can realize that the crimping pipe and the lead are automatically separated from the clamp body after crimping under the action of self gravity.

As shown in fig. 9 to 11, the pressure clamp mechanism 5 mainly comprises a die 51, a pressure clamp cylinder 52 and a mounting base plate 53, wherein the die 51 is arranged oppositely left and right to form a transverse pressure joint, a pressure joint cavity is formed between the two dies 51, and the two dies 51 are respectively connected with a piston end 52 of the pressure clamp cylinder 52 fixed on the mounting base plate 53. The mounting base plate 53 is fixedly mounted on a movable platform 74 described below.

In the embodiment, a mold positioning block 54 is fixedly mounted at a piston end of the pressing clamp oil cylinder 52, a dovetail groove is vertically arranged on the mold positioning block 54, a limiting block 58 is arranged at the bottom end of the dovetail groove, and the dovetail groove and the limiting block form a dovetail groove positioning structure; a dovetail slider 55 matched with the dovetail groove is fixed at one end of the die 51 facing the die positioning block, the die 51 is slidably inserted into the dovetail groove through the dovetail slider, and the dovetail slider 55 is abutted and matched with the limiting block 58. A mold handle 59 is also fixed to the upper side of the mold. The mould of the pressing pliers is quickly positioned, disassembled and assembled through the dovetail groove structure. This design ensures a high positional accuracy between the die 51 and the die positioning block 54, is always fixed to the die positioning block during crimping, and does not move laterally. When the mold needs to be replaced, the mold can be taken out only by gripping the mold handle by hands and moving upwards.

In this embodiment, the cylinder body of the pressure tong cylinder 52 is provided with a boss extending in the up-down direction at the end near the piston rod, the downward part 56 of the boss is embedded in the mounting base plate 53, and the upward part 57 of the boss is matched with a pressure plate of a pressure plate mechanism described below, so as to transmit the reverse acting force in the pressure welding to the frame. During the crimping operation, the two bosses are limited by the pressure plate and the mounting bottom plate.

The pressing plate mechanism 6 comprises a pressing plate 61 arranged above the corresponding pressing clamp mechanism, and a limiting groove is arranged on the pressing plate 61 corresponding to the boss upward part 57; the pressing plate 61 is connected with a pressing plate oil cylinder 62 which drives the pressing plate to move up and down, the pressing plate oil cylinder 62 is fixed on a pressing plate oil cylinder bracket, and the pressing plate oil cylinder bracket is fixedly arranged on a moving platform 74; when the pressing plate works, the pressing plate 61 moves towards the direction of the pressing clamp mechanism 4 under the driving of the pressing plate oil cylinder 62, and when the pressing plate reaches the boss position of the pressing clamp oil cylinder 52, the boss upper part 57 is embedded into the limiting groove on the pressing plate 61 to form limiting fit, so that reverse acting force in compression joint can be transmitted to the rack.

When the crimping operation is executed, the system firstly energizes the electromagnets of the two pressing plate oil cylinders 62 to enable the two pressing plates 61 to move towards the pressing clamp direction, and when the position of the boss of the pressing clamp oil cylinder 52 is reached (the pressing plates are closed), the system sends out a signal to enable the pressing plate oil cylinders 62 to stop moving and be in a pressure maintaining state. At this time, the system energizes the electromagnet of the pressure clamp oil cylinder 52, the oil cylinder pushes the left and right pistons to drive the respective dies 51 to move to the central position, when the dies 51 contact the crimping workpiece, the pressure of the oil cylinder gradually rises until reaching the designated pressure, and the pressure is maintained for 3-5s under the pressure. When the crimping is released, the system sends a signal to the electromagnets of the two pressure clamp oil cylinders 52, and the pressure clamp oil cylinders 52 drive the die 51 to return to the initial position. When the crimping work is finished and the crimped workpiece needs to be taken out, the system will confirm whether the crimper cylinder 52 has been returned to the initial position. When it is confirmed that the clamp cylinder 52 is back to the initial position, the system will send a signal to drive the platen cylinder 62 to move back to the initial position. When the clamp oil cylinder 52 and the pressure plate oil cylinder 62 return to the initial positions, the system is depressurized, and the workpiece is taken out.

According to the requirements of the crimping process, multiple times of crimping are needed to be carried out on axially different positions of a crimping pipe (comprising a steel pipe and an aluminum pipe).

The die moving mechanism 7 is used for dynamically moving the crimping pliers 4 along the axial direction of the lead at a plurality of designated working positions, so as to realize multipoint crimping of crimping pipes (including steel pipes and aluminum pipes).

The mould moving mechanism 7 comprises a linear guide rail 71 arranged along the front-back direction and a moving platform 74 in sliding fit with the linear guide rail, the crimping pliers 4 are installed on the moving platform 74, and a mould moving driving device for driving the moving platform to reciprocate along the linear guide rail is further arranged on the rack platform 8.

In this embodiment, the mold-moving driving device includes two synchronous belts 72 arranged in parallel with the linear guide rails, and the synchronous belts are arranged between the two linear guide rails. The timing belt 72 is driven to rotate by a timing wheel 73, and the timing belt 72 is connected to the crimping pliers 4.

The moving die driving device can also adopt a ball screw structure, the installation of the ball screw structure is the prior art, and the detailed description is omitted in the embodiment.

Cover door mechanism 9 is equipped with box 92 around including the frame 91 that supports frame platform, frame platform 8, and box 92 is fixed on frame 91, and the frame platform upside is equipped with the cover door 93 that the cover established frame platform 8, and cover door 93 passes through hinge hinged connection with box 92, and links to each other through cover door hydro-cylinder 94 between cover door 93 and frame 91, and cover door hydro-cylinder 94 drive cover door 93 opens and shuts for box 92.

The embodiment can improve the automation of the crimping process to the maximum extent, reduce the influence of human factors, improve the wire crimping construction efficiency and ensure the wire crimping construction quality.

The embodiment has the functions of cutting, stripping and automatic compression joint, and can automatically compress the lead with the spliced tube into a specified shape and size to meet the compression joint requirement.

The crimping pliers of this embodiment are arranged two, respectively steel mould crimping pliers and aluminium mould crimping pliers. The steel pipe compression joint and the aluminum pipe compression joint are completed by two sets of compression joint tongs, so that the cylinder diameter of the oil cylinder can be effectively reduced, and the weight of the hydraulic tongs is reduced; the matched steel die and the aluminum die are installed and fixed, so that die replacement is avoided, the crimping efficiency is high, and the wire crimping quality is controllable.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims

1. The utility model provides a lead automatic crimping system of ground wire which characterized in that: the method comprises the following steps:

wherein, the wire crimping control and execution module includes:

2. The automatic ground wire crimping system of claim 1, wherein: also included is a generator module for powering the entire system.

3. The automatic ground wire crimping system of claim 1, wherein: the wire cutting module comprises a cutting knife rest, an upper cutting knife, a lower cutting knife and a wire cutting hydraulic cylinder, wherein the lower cutting knife is fixed on the cutting knife rest, the upper cutting knife is installed on a slide rail of the cutting knife rest, the wire cutting hydraulic cylinder is installed at the top end of the cutting knife rest and connected with the upper cutting knife, the hydraulic pump station module drives the wire cutting hydraulic cylinder to drive the upper cutting knife to move downwards to a lower stop point along the slide rail, and the upper cutting knife and the lower cutting knife form shearing movement to finish the shearing action of the wire.

4. The automatic ground wire crimping system of claim 1, wherein: the wire stripping module comprises a wire stripping seat, an upper wire stripping cutter seat, a lower wire stripping cutter seat and a wire stripping electric cylinder, wherein guide rods extending in the vertical direction are arranged on two sides of the wire stripping seat in parallel; the cutting edges of the upper and lower stripping knives are oppositely provided with semi-circular grooves, and the two semi-circular grooves are butted to form a reserved opening matched with the wire steel core;

5. The automatic ground wire crimping system of claim 1, wherein: the clamping mechanism mainly comprises a bottom plate, two clamping sleeve seats, a base, a rolling sleeve and a clamping oil cylinder, wherein the two clamping sleeve seats are oppositely arranged on the left and the right, and respectively comprise a left clamping sleeve seat fixedly arranged on the base and a right clamping sleeve seat connected with the clamping oil cylinder; rolling sleeves are respectively arranged on the front side and the rear side of the clamping space on the base.

6. The automatic ground wire crimping system of claim 5, wherein: the clamping mechanisms are respectively arranged at the front side and the rear side of the crimping pliers.

7. The automatic ground wire crimping system of claim 1, wherein: the pressing clamp mechanism mainly comprises a die, a pressing clamp oil cylinder and an installation bottom plate, wherein the die is oppositely arranged at the left and the right to form transverse pressing connection, a pressing connection cavity is formed between the two dies, and the two dies are respectively connected with the piston end of the pressing clamp oil cylinder fixed on the installation bottom plate; a boss extending in the vertical direction is arranged at one end, close to the extending end of the piston rod, of the cylinder body of the pressing clamp oil cylinder, and the downward part of the boss is embedded on the mounting bottom plate;

8. The automatic ground wire crimping system of claim 7, wherein: the pressing plate mechanism comprises a pressing plate arranged above the corresponding pressing clamp mechanism, and a limiting groove is arranged on the pressing plate corresponding to the upward part of the boss; the pressing plate is connected with a pressing plate oil cylinder which drives the pressing plate to move up and down, and the pressing plate oil cylinder is fixed on a pressing plate oil cylinder bracket; when the pressing plate works, the pressing plate moves towards the direction of the pressing clamp mechanism under the driving of the pressing plate oil cylinder, and when the pressing plate reaches the boss position of the pressing clamp oil cylinder, the upward part of the boss is embedded into the limiting groove on the pressing plate to form limiting fit.

9. The automatic ground wire crimping system of claim 1, wherein: the frame platform is also provided with a mould moving mechanism, the mould moving mechanism comprises a linear guide rail arranged along the front-back direction and a moving platform in sliding fit with the linear guide rail, the crimping pliers are arranged on the moving platform, and the frame platform is also provided with a mould moving driving device for driving the moving platform to reciprocate along the linear guide rail.

10. The automatic ground wire crimping system of claim 1, wherein: still including cover door mechanism, cover door mechanism is equipped with the box including the frame that supports rack platform around including the frame of support rack platform, rack platform is last, and the box is fixed on the frame, and the rack platform upside is equipped with the cover door that the frame platform was established to the cover, and the cover door passes through hinge hinged joint with the box, and the cover door links to each other through the cover door hydro-cylinder between door and the frame, and cover door hydro-cylinder drive cover door opens and shuts for the box.