Cable reaction force cone machining cutter

Abstract

The invention discloses a cable reaction force cone machining tool, and relates to the technical field of tools. Comprising a base, a driving unit and a fixing support are sequentially installed on the base, the output end of the driving unit is connected with a driving frame, and a milling unit and a dust removal unit are installed on the driving frame; the dust removal unit comprises a variable-diameter channel with variable diameters and a filtering assembly, and the variable-diameter channel is connected with the air supply system and mounted on the driving frame; the filter assembly comprises a filter cartridge and a filter unit, the filter cartridge is installed on the variable-diameter channel, the filter unit is installed in the filter cartridge, the dust removal unit adopts a variable-diameter pipe integrated with a refrigeration part and a Venturi structure, dust can be adsorbed through negative pressure during machining, and local cooling can be achieved through reverse spraying after machining; the filtering unit is provided with a filtering element capable of vibrating and self-cleaning, accumulated impurities can be automatically removed, integrated automatic operation of processing, cooling, dust removal and filtering of the reaction force cone is achieved, and the processing quality and safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutters, and specifically relates to a cable reaction force cone machining cutter. BACKGROUND

[0002] At present, the machining of the cable reaction force cone mainly depends on the traditional lathe turning or the manual polishing by the operator holding the cutter. In the cutting and polishing process, a large amount of metal chips and insulating material dust are generated, forming complex mixed pollutants. These pollutants not only easily float and adhere to the cutter edge, causing the cutting temperature to rise, the cutter blade to wear out, and the machining precision and the cutter life to be reduced, but also, more seriously, the fine metal particles and insulating dust may adhere to or even embed into the surface of the cable insulation layer, forming impurities that are difficult to completely remove.

[0003] These residual pollutants can destroy the interface integrity of the cable terminal, cause uneven electric field distribution, and significantly reduce the interface insulation strength. Under long-term operating voltage, the pollutants may become the starting point of partial discharge and gradually cause electrical tree aging, eventually leading to a substantial increase in the risk of interface breakdown, which seriously threatens the safe and stable operation of the cable terminal. SUMMARY

[0004] The purpose of the present application is to provide a cable reaction force cone machining cutter to solve the problems in the prior art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a gas supply system is provided, which comprises a base, a driving unit and a fixing support are sequentially installed on the base, a driving frame is connected to the output end of the driving unit, a milling unit and a dust removal unit are installed on the driving frame; The dust removal unit comprises a variable-diameter channel and a filter assembly, the variable-diameter channel is connected with the gas supply system, and the variable-diameter channel is installed on the driving frame. The filter assembly comprises a filter cartridge and a filter unit, the filter cartridge is installed on the variable-diameter channel, and the filter unit is installed in the filter cartridge.

[0006] The fixing support clamps and positions the cable, so as to facilitate the machining and processing of the cable. A collecting box is arranged on the base below the milling unit, and larger impurities and insulating materials generated in the machining process fall into the collecting box, and smaller impurities and insulating materials are collected by the dust removal unit.

[0007] The variable-diameter channel is a variable-diameter pipe, and the gas supply system and the filter cartridge are connected with both ends of the variable-diameter pipe. The filter unit comprises a filter element and a vibration element, the filter element is installed on the filter cartridge, and the vibration element is installed on the filter element.

[0008] The variable-diameter pipe comprises a middle part, a contraction part and an expansion part are installed at both ends of the middle part, the contraction part is connected with the air supply system, the middle part is provided with a communication member, and the filter cartridge is installed on the expansion part. The vibration element comprises a detection member and a vibration member, the detection member is arranged on the filter element and the filter cartridge, and the vibration member is connected with the filter element.

[0009] The detection member is a piezoelectric plate, the vibration member is an electromagnetic spring, a plurality of filter elements are arranged, a plurality of elastic plates are arranged at the middle parts of the plurality of filter elements, the electromagnetic spring is connected with the plurality of elastic plates, and the two ends of the electromagnetic spring are electrically connected with the control system.

[0010] When the plurality of filter elements work to a set time or the piezoelectric plate detects that the amount of dust on the filter element is relatively large, the worker removes the slag discharge plate, and continuously energizes and de-energizes the electromagnetic spring through the control system. After the electromagnetic spring is energized, it continuously shrinks, and the electromagnetic spring stretches the plurality of filter elements through the elastic plates. After the electromagnetic spring is de-energized, the electromagnetic spring gradually lengthens under the action of its own elastic force, and the electromagnetic spring drives the plurality of filter elements to restore the original state through the elastic plates. The electromagnetic spring is continuously energized and de-energized through the control system, so that the plurality of filter elements are continuously stretched and restored to the original state, causing the vibration of the plurality of filter elements, so that the impurities or insulating materials on the filter element fall down and are discharged from the position of the slag discharge plate.

[0011] The piezoelectric plate is used to detect the resistance of air to the filter element, and then feedback the filtering effect of the filter element. When the dust or impurities on the filter element are relatively large, the resistance of air passing through the filter element becomes larger, the filter element protrudes to one side, and the filter element pulls the piezoelectric plate at the same time, so that the tension of the piezoelectric plate changes, the positive and negative charge centers in the piezoelectric plate change in relative position, thereby generating charge accumulation and forming voltage on the piezoelectric plate. After the control system detects the voltage, the resistance of the filter element is obtained, and then the amount of dust or impurities on the filter element is inversely deduced.

[0012] A plurality of filter elements are arranged on the plurality of filter elements, and the mesh diameters of the plurality of filter elements gradually decrease in turn. The filter cartridge is provided with a slag discharge plate corresponding to the positions of the plurality of filter elements.

[0013] The wrinkles of the filter element can increase the filtering area, the mesh diameters of the plurality of filter elements gradually increase to realize graded filtering, and the filtering efficiency and dust capacity are improved.

[0014] In the cable processing process, air, impurities and insulation materials are discharged from the expansion part into the filter cylinder along with the airflow, and multiple sets of filter elements filter the impurities or insulation materials, and the air passes through the multiple sets of filter elements and is discharged into the air.

[0015] The diameter of the contraction part gradually decreases, the diameter of the expansion part gradually increases, the diameter of the intermediate part is smaller than the diameters of the contraction part and the expansion part, and an electromagnetic valve is arranged in the expansion part. The contraction part, the intermediate part and the expansion part are all provided with refrigeration parts.

[0016] The refrigeration part is made of two metal wires connected in series, one end of the two metal wires is electrically connected with two semiconductors of different materials respectively, the power supply wire of the refrigeration part is arranged on the variable diameter pipe and penetrates out of the variable diameter pipe to be electrically connected with the control system. The two metal wires and the two semiconductors of different materials cooperate to cool the cutter and the cable through the Peltier effect.

[0017] The refrigeration part is composed of two metal wires connected in series with two semiconductor materials. After being powered on, the inside of the variable diameter pipe becomes a refrigeration end, thereby directly refrigerating the air in the variable diameter pipe, realizing efficient active refrigeration and improving the cooling effect of the cutter and the cable.

[0018] When the cable is processed, the control system opens the electromagnetic valve of the expansion part, the control system sends the external air to the contraction part of the variable diameter pipe after pressurizing the external air through the air supply system, the air passes through the contraction part, the intermediate part and the expansion part in turn, due to the Venturi effect, the flow rate of the air is the fastest in the intermediate part, the static pressure of the intermediate part is the lowest, the pressure of the intermediate part is reduced, thereby generating negative pressure at the communication part, so that the impurities or dust generated in the processing process are sucked into the variable diameter pipe through the communication part, the metal scraps, insulation materials and dust etc. are sucked into the expansion part along with the airflow, and finally filtered by the filter assembly at the end of the expansion part, while the air passes through the filter assembly and is discharged into the air, realizing the cooling and cleaning of the processing area.

[0019] After the processing is completed, the control system closes the electromagnetic valve in the expansion part, and sends the external air to the contraction part of the variable diameter pipe after pressurizing the external air through the air supply system, the air passes through the contraction part, the intermediate part and the expansion part, the air is blocked by the electromagnetic valve in the expansion part, resulting in that the air is cooled by the refrigeration part and sprayed on the cutter and the cable from the communication part, realizing the cooling of the cutter and the cable.

[0020] The milling unit comprises a linear module, an electric spindle and a cutter, the linear module is installed on the driving frame, the electric spindle is installed on the telescopic end of the linear module, and the cutter is connected with the output end of the electric spindle.

[0021] The linear module drives the electric spindle and the cutter to feed along the cable axis, the electric spindle drives the cutter to rotate, the cable end is milled to form the required reaction force cone geometry, the axial feed and the rotary cutting are combined to meet the machining precision requirement of the reaction force cone.

[0022] The driving unit comprises a hollow rotating table and a servo motor, the servo motor is installed on the base, the output end of the servo motor is connected with the hollow rotating table, and the hollow rotating table is installed on the base.

[0023] The servo motor drives the hollow rotating table to rotate accurately, the hollow rotating table drives the driving frame, the milling unit and the dust removal unit to rotate around the cable axis, so that the cutter can be milled around the cable in the circumferential direction, and the symmetrical and uniform reaction force cone surface is machined; the servo motor can provide accurate angular displacement control, and the machining consistency is ensured.

[0024] The control box is arranged on the driving frame, and the control system is arranged in the control box.

[0025] Compared with the prior art, the beneficial effects of the present application are that the hollow rotating table is driven by the servo motor, the driving frame provided with the linear module and the electric spindle is driven to rotate around the cable, the cutter completes the conical surface milling in the axial feed, the dust removal unit generates negative pressure in the middle part through the variable diameter pipe structure and the Venturi effect, and the dust in the machining area is sucked through the communication piece. After the machining is completed, the expansion part electromagnetic valve is closed, the airflow after refrigeration is sprayed reversely from the communication piece, the cutter and the cable are subjected to point spraying cooling, the filter cartridge is provided with multiple layers of filter elements provided with electromagnetic springs, and can be vibrated and cleaned regularly, and the impurities are discharged through the discharge plate. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the structural schematic diagram of the whole of the present application; Figure 2 is the structural schematic diagram of the fixed support in the present application; Figure 3 is the structural schematic diagram of the driving frame in the present application; Figure 4 is the structural schematic diagram of the variable diameter pipe in the present application; Figure 5 is the structural schematic diagram of the middle part in the present application; Figure 6 is Figure 5 is the local enlarged view of the A area in the middle part.

[0027] In the diagram: 1. Base; 11. Fixed bracket; 2. Drive unit; 21. Drive frame; 22. Hollow rotary table; 23. Servo motor; 3. Milling unit; 31. Linear module; 32. Electric spindle; 33. Tool; 4. Dust removal unit; 41. Reducer; 411. Shrinkage section; 412. Intermediate section; 413. Expansion section; 42. Refrigeration component; 43. Filter assembly; 431. Filter cartridge; 432. Filter element; 433. Electromagnetic spring; 44. Connecting component; 5. Control box. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Figures 1-6 As shown, the present invention provides a technical solution for machining a cable reaction force cone, including an air supply system (not shown in the figure) and a base 1. A drive unit 2 and a fixed bracket 11 are sequentially installed on the base 1. The output end of the drive unit 2 is connected to a drive frame 21. A milling unit 3 and a dust removal unit 4 are installed on the drive frame 21. The dust removal unit 4 includes a variable diameter channel and a filter assembly 43. The variable diameter channel is connected to the air supply system and is installed on the drive frame 21. The filter assembly 43 includes a filter cylinder 431 and a filter unit. The filter cylinder 431 is installed on the variable diameter channel, and the filter unit is installed inside the filter cylinder 431. A control box 5 is provided on the drive frame 21, and a control system is provided inside the control box 5.

[0030] The variable diameter channel is a variable diameter pipe 41, and the air supply system and filter cylinder 431 are connected to both ends of the variable diameter pipe 41; the filter unit includes a filter element 432 and a vibration element. The filter element 432 is installed on the filter cylinder 431. The filter element 432 is a filter screen or filter cloth, and the vibration element is installed on the filter element 432.

[0031] The reducing pipe 41 includes a middle section 412, with a contraction section 411 and an expansion section 413 installed at both ends of the middle section 412. The contraction section 411 is connected to the air supply system. The middle section 412 is provided with a connecting member 44. The filter cartridge 431 is installed on the expansion section 413. The vibration element includes a detection element and a vibration element. The detection element is installed on the filter element 432 and the filter cartridge 431. The vibration element is connected to the filter element 432.

[0032] The detection piece is a piezoelectric plate (not shown in the figure), the vibrating piece is an electromagnetic spring 433, and the filter element 432 is provided with multiple groups, the middle part of each group of filter elements 432 is provided with an elastic plate, the electromagnetic spring 433 is connected with the multiple elastic plates, and the two ends of the electromagnetic spring 433 are electrically connected with the control system.

[0033] The piezoelectric plate is made of piezoelectric ceramic material, and is used for detecting the resistance of air to the filter element 432, and then feeding back the filtering effect of the filter element 432.

[0034] When the multiple groups of filter elements 432 work to a set time or the piezoelectric plate detects that the amount of dust on the filter element 432 is relatively large, the staff will take down the deslagging plate, and continuously power on and power off the electromagnetic spring 433 through the control system. After the electromagnetic spring 433 is powered on, it continues to contract, and the electromagnetic spring 433 stretches the multiple groups of filter elements 432 through the elastic plate; after the electromagnetic spring 433 is powered off, the electromagnetic spring 433 gradually lengthens under the action of its own elastic force, and the electromagnetic spring 433 drives the multiple groups of filter elements 432 to restore the original state through the elastic plate; the electromagnetic spring 433 is powered on and powered off through the control system to make the multiple groups of filter elements 432 be stretched and restored to the original state, causing the vibration of the multiple groups of filter elements 432, so that the impurities or insulating materials on the filter element 432 fall down and are discharged from the position of the deslagging plate.

[0035] The multiple groups of filter elements 432 are all provided with wrinkles, and the mesh diameters of the multiple groups of filter elements 432 gradually decrease in turn; the filter cylinder 431 is provided with a deslagging plate corresponding to the positions of the multiple groups of filter elements 432; the wrinkles of the filter element 432 increase the filtering area, and the mesh diameters of the multiple groups of filter elements 432 gradually increase to realize graded filtering, thereby improving the filtering efficiency and dust holding capacity.

[0036] The diameter of the contraction part 411 gradually decreases, the diameter of the expansion part 413 gradually increases, the diameter of the middle part 412 is smaller than the diameters of the contraction part 411 and the expansion part 413, and the expansion part 413 is provided with an electromagnetic valve; the contraction part 411, the middle part 412 and the expansion part 413 are all provided with refrigeration pieces 42.

[0037] The refrigeration piece 42 is made of two metal wires connected in series, one end of each of the two metal wires is electrically connected with a semiconductor of different material; the two semiconductors of different materials are electrically connected with the control system through wires, and the power supply wires of the refrigeration piece 42 are arranged on the variable diameter pipe 41 and pass through the variable diameter pipe 41 to be electrically connected with the control system. The refrigeration piece 42 is composed of two metal wires connected in series with two semiconductor materials, and after being powered on, the inside of the variable diameter pipe 41 becomes a refrigeration end, thereby directly refrigerating the air in the variable diameter pipe 41 to realize efficient active refrigeration.

[0038] The milling unit 3 comprises a linear module 31, an electric spindle 32 and a cutter 33, the linear module 31 is installed on the driving frame 21, the electric spindle 32 is installed on the telescopic end of the linear module 31, and the cutter 33 is connected with the output end of the electric spindle 32. The linear module 31 drives the electric spindle 32 and the cutter 33 to accurately feed along the cable axis, the electric spindle 32 drives the cutter 33 to rotate, and the cable end is milled to form a required reaction force cone geometry, so that the composite motion of axial feeding and rotary cutting is realized, and the machining precision requirement of the reaction force cone is met.

[0039] The driving unit 2 comprises a hollow rotary table 22 and a servo motor 23, the servo motor 23 is installed on the base 1, the output end of the servo motor 23 is connected with the hollow rotary table 22, and the hollow rotary table 22 is installed on the base 1. The servo motor 23 drives the hollow rotary table 22 to accurately rotate, the hollow rotary table 22 drives the driving frame 21, the milling unit 3 and the dust removal unit 4 to rotate around the cable axis, so that the cutter 33 can mill around the cable circumference to process a symmetrical and uniform reaction force cone surface; the servo motor 23 can provide accurate angular displacement control to ensure machining consistency.

[0040] When the cable is processed, the control system opens the electromagnetic valve of the expansion part 413, the control system pressurizes the external air through the air supply system and then delivers the air into the contraction part 411 of the variable diameter pipe 41, the air passes through the contraction part 411, the intermediate part 412 and the expansion part 413 in sequence, due to the Venturi effect, the flow rate of the air in the intermediate part 412 is the fastest, the static pressure of the intermediate part 412 is the lowest, the pressure of the intermediate part 412 is reduced, so that negative pressure is generated at the communication piece 44, and impurities or dust generated in the processing process are sucked into the variable diameter pipe 41 through the communication piece 44, the metal scraps, insulating materials and dust sucked in enter the expansion part 413 along with the airflow, and are finally filtered by the filtering assembly 43 at the end of the expansion part 413, and the air passes through the filtering assembly 43 and is discharged into the air, so that the processing area is cooled and cleaned.

[0041] After the processing is completed, the control system closes the electromagnetic valve in the expansion part 413, and pressurizes the external air through the air supply system and then delivers the air into the contraction part 411 of the variable diameter pipe 41, the air passes through the contraction part 411, the intermediate part 412 and the expansion part 413, the air is blocked by the electromagnetic valve in the expansion part 413, so that the air is cooled by the refrigeration piece 42 and then sprayed on the cutter 33 and the cable from the communication piece 44, so that the cutter 33 and the cable are cooled.

[0042] Working principle: the control system starts the servo motor 23, the servo motor 23 drives the hollow rotating table 22 to rotate, the hollow rotating table 22 drives the milling unit 3 and the dust removal unit 4 to rotate one circle, the milling unit 3 and the dust removal unit 4 rotate around the cable axis clamped by the fixed support 11; at the same time, the control system controls the linear module 31 of the milling unit 3 to drive the electric spindle 32 and the cutter 33 to feed along the cable axis, and the electric spindle 32 drives the cutter 33 to rotate at high speed, and the cable end is milled in three dimensions to form a reaction force cone through the composite motion.

[0043] In the processing process, the control system synchronously starts the dust removal unit 4; first, the electromagnetic valve in the expansion part 413 is opened, and the air supply system is controlled to send pressurized air into the contraction part 411 of the variable diameter pipe 41; the air flows through the contraction part 411 with gradually reducing diameter, the intermediate part 412 with small diameter and the expansion part 413 with gradually expanding diameter, and according to the Venturi effect, negative pressure is formed at the communication piece 44 of the intermediate part 412, so that the metal scraps, dust of insulating materials and other impurities generated in the processing are sucked into the variable diameter pipe 41; the airflow carrying impurities enters the expansion part 413 and is finally filtered by the filter assembly 43.

[0044] After the processing is completed, the control system closes the electromagnetic valve in the expansion part 413, and the air outside is pressurized by the air supply system and then sent to the contraction part 411 of the variable diameter pipe 41, the air passes through the contraction part 411, the intermediate part 412 and the expansion part 413, and the air is blocked by the electromagnetic valve in the expansion part 413, so that the air is cooled by the refrigeration piece 42 and sprayed on the cutter 33 and the cable from the communication piece 44, realizing the cooling of the cutter 33 and the cable.

[0045] After the cooling of the cable and the cutter is completed, the worker opens the fixed support 11 and takes down the processed cable.

[0046] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A cable reaction force tapering tool comprising a gas supply system, characterized by: Including base (1), the base (1) is installed with drive unit (2) and fixed support (11) in turn, the output end of drive unit (2) is connected with drive frame (21), and milling unit (3) and dust removal unit (4) are installed on drive frame (21); The dust removal unit (4) includes a variable diameter channel with varying diameters and a filter assembly (43), the variable diameter channel is connected with the air supply system, and the variable diameter channel is installed on the drive frame (21); The filter assembly (43) includes a filter cartridge (431) and a filter unit, the filter cartridge (431) is installed on the variable diameter channel, and the filter unit is installed in the filter cartridge (431).

2. A cable reaction force tapering tool according to claim 1, characterized in that: The variable diameter channel is a variable diameter pipe (41), and the air supply system and the filter cartridge (431) are connected with both ends of the variable diameter pipe (41). The filter unit includes a filter element (432) and a vibration element, the filter element (432) is installed on the filter cartridge (431), and the vibration element is installed on the filter element (432).

3. A cable reaction force taper tool according to claim 2, wherein: The variable diameter pipe (41) includes an intermediate part (412), the intermediate part (412) is provided with a contraction part (411) and an expansion part (413) at both ends, the contraction part (411) is connected with the air supply system, the intermediate part (412) is provided with a communication piece (44), and the filter cartridge (431) is installed on the expansion part (413). The vibration element includes a detection piece and a vibration piece, the detection piece is arranged on the filter element (432) and the filter cartridge (431), and the vibration piece is connected with the filter element (432).

4. A cable reaction force taper tool according to claim 3, wherein: The detection piece is a piezoelectric plate, the vibration piece is an electromagnetic spring (433), the filter element (432) is provided with multiple groups, the middle part of each group of the filter element (432) is provided with an elastic plate, the electromagnetic spring (433) is connected with the multiple elastic plates, and both ends of the electromagnetic spring (433) are electrically connected with the control system.

5. A cable reaction force taper tool according to claim 4, wherein: Multiple groups of the filter element (432) are provided with wrinkles, and the mesh diameters of multiple groups of the filter element (432) gradually decrease in turn; The filter cartridge (431) is provided with a deslagging plate corresponding to the positions of multiple groups of the filter element (432).

6. A cable reaction force taper tool according to claim 5, wherein: The diameter of the contraction part (411) gradually decreases, the diameter of the expansion part (413) gradually increases, the diameter of the intermediate part (412) is smaller than the diameters of the contraction part (411) and the expansion part (413), and the expansion part (413) is provided with an electromagnetic valve; The contraction part (411), the intermediate part (412) and the expansion part (413) are all provided with refrigeration pieces (42).

7. A cable reaction force taper tool according to claim 6, wherein: The refrigeration pieces (42) are made of two strands of metal wires, and one end of each of the two strands of metal wires is electrically connected with a semiconductor of different material.

8. The cable reaction force taper tool of claim 1, wherein: The milling unit (3) includes a linear module (31), an electric spindle (32) and a cutter (33), the linear module (31) is installed on the drive frame (21), the electric spindle (32) is installed on the telescopic end of the linear module (31), and the cutter (33) is connected with the output end of the electric spindle (32).

9. The cable reaction force taper tool of claim 1, wherein: The driving unit (2) comprises a hollow rotating table (22) and a servo motor (23), the servo motor (23) is installed on the base (1), the output end of the servo motor (23) is connected with the hollow rotating table (22), and the hollow rotating table (22) is installed on the base (1).

10. The cable reaction force taper tool of claim 1, wherein: A control box (5) is arranged on the driving frame (21), and a control system is arranged in the control box (5).

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