CN113991554B - Wire cutting and stripping device - Google Patents
Wire cutting and stripping device Download PDFInfo
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- CN113991554B CN113991554B CN202111458527.5A CN202111458527A CN113991554B CN 113991554 B CN113991554 B CN 113991554B CN 202111458527 A CN202111458527 A CN 202111458527A CN 113991554 B CN113991554 B CN 113991554B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 131
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 21
- 229910052782 aluminium Inorganic materials 0.000 description 21
- 239000010959 steel Substances 0.000 description 21
- 238000004804 winding Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1204—Hand-held tools
- H02G1/1207—Hand-held tools the cutting element not rotating about the wire or cable
- H02G1/1209—Hand-held tools the cutting element not rotating about the wire or cable making a transverse cut
- H02G1/1212—Hand-held tools the cutting element not rotating about the wire or cable making a transverse cut using wire or cable clamping means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
The invention relates to a wire cutting and stripping device which comprises a host machine, a fixed cutter head and a movable cutter head. The movable cutter head is detachably connected with one end of the host machine, provided with the fixed cutter head, and is positioned at one side of the fixed cutter head; the movable cutter head can controllably reciprocate relative to the fixed cutter head so as to form a cutting gap with a variable size together with the fixed cutter head, thereby cutting or stripping the wire. The wire cutting and stripping device is small in design, convenient to carry and easy to detach and replace. After the wire cutting and stripping device is used for the crimping and stripping operation of the wires of the ultra-high voltage overhead transmission line, the labor intensity of operators is greatly reduced in the power failure maintenance and the transition and modification operation, the operation process level is improved, the line operation time is shortened, the operation efficiency is further improved, and the equipment availability and the power supply reliability are both obviously improved.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a wire cutting and stripping device.
Background
In recent years, with the high-speed development of social economy, the electricity consumption of residents is increased, so that ultra-high voltage transmission line equipment runs at full load for a long time, and most of transmission lines are exposed to an open environment for a long time, so that the situation of power line migration and repair is increased. The overhead wire of the high-voltage transmission line is generally a steel-cored aluminum stranded wire, namely the central part of the wire is a steel core, the periphery of the steel core is wrapped by the aluminum stranded wire, when the transmission wire is subjected to migration and repair, the transmission wire needs to be cut and is subjected to crimping wire stripping, specifically, the aluminum stranded wire wrapped and coated on the periphery needs to be partially stripped, the steel core in the middle is exposed for crimping, and then the aluminum stranded wire is used for re-wrapping and coating. For the crimping wire stripping operation of the steel-cored aluminum stranded wire, about 30 strain clamps or a plurality of straight line pipes are often crimped for one time, the workload is extremely high, and the conditions of increasingly-increased power transmission line migration and repair can be met only by higher wire stripping crimping efficiency.
The traditional wire stripping operation method is to perform wire stripping manually or using a large wire stripping tool. When the manual wire stripping method is adopted, a rotary blade is usually used for continuously and manually rotating the steel-cored aluminum stranded wires, so that the aluminum wires wrapped around the periphery are separated one by one, the steel core is not damaged by mistake, but the efficiency is low, the physical strength is consumed, and particularly when the wires are large-section wires, the physical strength requirement on individuals is high; when adopting large-scale wire stripping instrument to carry out wire stripping operation, wire stripping precision is not high, leads to easily accidentally injuring the steel core, and wire stripping instrument's volume is great simultaneously, is difficult for carrying, when needs change the tool bit, also inconvenient dismantlement and equipment to the tool bit.
Disclosure of Invention
Based on the above, it is necessary to provide a wire cutting and stripping device which has high stripping accuracy, is easy to carry and can quickly replace a tool bit, aiming at the problem that the existing crimping and stripping method and stripping tool cannot simultaneously achieve stripping accuracy and stripping efficiency.
According to an aspect of the present application, there is provided a wire cutting and stripping device including:
A host;
The fixed tool bit is detachably arranged on the host; and
The movable tool bit is detachably connected with one end of the host machine, provided with the fixed tool bit, and is positioned at one side of the fixed tool bit;
the movable cutter head can controllably reciprocate relative to the fixed cutter head to form a cutting gap of variable size with the fixed cutter head.
In one embodiment, the wire cutting and stripping device further comprises a connector, wherein the connector comprises a shell and a piston, the shell is matched with the host, and the piston is accommodated in the shell and can controllably reciprocate along the axial direction of the shell; the fixed tool bit is detachably connected to the shell, and the movable tool bit is detachably connected to the piston.
In one embodiment, the fixed cutter head is provided with a clamping hole for penetrating the wire, and the movable cutter head is located at one axial side of the clamping hole and forms the cutting gap with a part of hole wall structure of the clamping hole.
In one embodiment, a first cutting edge is formed on one side of the hole wall of the clamping hole, a second cutting edge is formed on one side of the movable cutter head facing the first cutting edge, and the first cutting edge and the second cutting edge jointly define the cutting gap.
In one embodiment, the stationary cutter head includes a stationary portion and a movable portion, one end of the movable portion being rotatably connected to one end of the stationary portion, the movable portion being rotatable relative to the stationary portion to switch between an open and a closed state;
when the movable portion and the fixed portion are in the closed state, the movable portion and the fixed portion together define the clamping hole.
In one embodiment, the first cutting edge is provided with a first core clamping groove, the second cutting edge is provided with a second core clamping groove, and when the first cutting edge and the second cutting edge are close to each other, the first core clamping groove and the second core clamping groove jointly form a core clamping position.
In one embodiment, the wire cutting and stripping device further comprises an auxiliary handle, wherein one end of the auxiliary handle is rotatably mounted on the fixed tool bit.
In one embodiment, the host comprises a driving element, and the driving element is in transmission connection with the movable cutter head and is used for driving the movable cutter head to reciprocate relative to the fixed cutter head.
In one embodiment, the host further comprises a body and a holding part, wherein the holding part is connected to the body, and the connector is detachably inserted into one end of the body.
In one embodiment, the host is provided with a reset button mechanically connected to the driving element for driving the movable cutter head to return to an initial position.
According to the wire cutting and stripping device, the fixed tool bit and the movable tool bit are detachably installed at one end of the host, meanwhile, the movable tool bit is connected to the host in a transmission mode, when crimping and stripping are performed, the movable tool bit moves relative to the fixed tool bit to form a cutting gap with a variable size, and high-precision stripping can be achieved, so that the wire cutting and stripping device is small in design, convenient to carry and easy to detach and replace. After the wire cutting and stripping device is used for the crimping and stripping operation of the wires of the ultra-high voltage overhead transmission line, the labor intensity of operators is greatly reduced in the power failure maintenance and the transition and modification operation, the operation process level is improved, the line operation time is shortened, the operation efficiency is further improved, and the utilization rate and the power supply reliability of equipment are both obviously improved.
Drawings
Fig. 1 is a front view of a wire cutting and stripping device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second embodiment of a stationary cutter head according to the present invention in an open state;
FIG. 3 is an exploded view of a stationary cutter head and a movable cutter head according to a first embodiment of the present invention;
FIG. 4 is an exploded view of a stationary cutter head and a movable cutter head according to a second embodiment of the present invention;
Fig. 5 is a schematic view of a steel core stripped by clamping a fixed cutter head and a movable cutter head according to a second embodiment of the present invention.
Reference numerals illustrate:
10. A guiding cutting wire stripping device; 101. a core clamping position; 100. a host; 110. a housing; 111. a body; 112. a grip portion; 113. a power supply driving button; 114. a reset button; 120. a power supply; 200. a joint; 210. a housing; 300. fixing the cutter head; 301. a clamping hole; 310. a fixing part; 311. a first connection end; 312. a second connection end; 313. a third connection end; 314. a clamping groove; 320. a movable part; 321. a first cutting edge; 3211. a first core clamping groove; 322. a fourth connection end; 323. a fifth connection end; 400. a movable cutter head; 410. a second cutting edge; 411. a second core clamping groove; 500. an auxiliary handle; 20. a wire; 210. and a steel core.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As described in the background art, overhead conductors of transmission lines in China are generally steel-cored aluminum stranded wires, and the length of each steel-cored aluminum stranded wire is about 1500 meters to 2000 meters. Generally, the outer layer of the steel-cored aluminum strand is an aluminum wire-wound strand, which functions as a conductor, while the inner layer is a steel strand-wound strand, which functions to withstand the working tension of the entire wire. When the power transmission line is subjected to migration and repair, the aluminum wire wound and coated on the periphery of the steel core needs to be stripped before the wire is connected, and the steel core is exposed to prepare for compression joint. Specifically, when the wire crimping machine is used for crimping operation, the steel strand winding strand needs to be connected by the crimping machine, then the outer layer aluminum wire winding strand needs to be connected by the crimping machine, and when the steel strand winding strand is connected, the outer layer aluminum wire winding strand needs to be stripped, and then the connection operation can be performed. The quality that aluminium stranded conductor was peeled off directly influences the connection quality of wire, if the port that excision aluminium stranded conductor was untidy can influence the connection, perhaps damages the steel core even in peeling off the in-process, influences the atress intensity after the wiring, consequently is better operation swiftly to the requirement of above-mentioned wire stripping operation, and the light and handy convenience of instrument still guarantees simultaneously and does not hurt the steel strand wires winding strand at the in-process of wire stripping. When the crimping wire stripping operation is carried out on the steel-cored aluminum stranded wire, the traditional wire stripping operation method is to carry out wire stripping operation manually or use a large wire stripping tool.
The inventor notices that when the manual wire stripping method is adopted, a rotary blade is usually used for continuously and manually rotating the steel-cored aluminum stranded wire, so that the aluminum wires wrapped around the periphery are separated one by one, the steel core is not damaged accidentally, but the efficiency is low, the labor is consumed, and particularly when the wire is a large-section wire, the requirement on the physical strength of individuals is high; when adopting large-scale wire stripping instrument to carry out wire stripping operation, wire stripping precision is not high, leads to easily accidentally injuring the steel core, and wire stripping instrument's volume is great simultaneously, is difficult for carrying, when needs change the tool bit, also inconvenient dismantlement and equipment to the tool bit.
In order to solve this problem, the present inventors have studied and found that a wire cutting and stripping device can be designed to be miniaturized and portable. Specifically, the wire cutting and stripping device is designed into a handheld device, and the tool bit is detachably connected to the handle in a matching mode, so that a user can conveniently hold the wire cutting device to perform crimping and stripping operation, and meanwhile, the tool bit can be replaced with other types of tool bits at any time, and other operations on wires can be performed.
Based on the above consideration, in order to solve the problem that the existing crimping wire stripping method and wire stripping tool cannot simultaneously consider wire stripping precision and wire stripping efficiency, the inventor has conducted intensive studies and designed a wire cutting wire stripping device which is high in wire stripping precision, easy to carry and capable of rapidly replacing a tool bit, the design sense of inspiration is derived from the appearance design of a pistol, the wire cutting wire stripping device is designed into an appearance shape similar to the pistol, a host machine is arranged at the tail part of the wire cutting wire stripping device, a fixed tool bit and a movable tool bit are detachably arranged at the head part of the wire cutting wire stripping device at the same time, and meanwhile, the fixed tool bit and the movable tool bit are detachably connected to the host machine through a joint.
The wire cutting and stripping device disclosed by the embodiment of the application can be used for cutting and stripping operations of steel-cored aluminum stranded wires, and can also be used for cutting and stripping other types of wires, so that the wire cutting and stripping device disclosed by the application can be ensured to have high wire stripping precision and be easy to carry and can be used for quickly replacing a tool bit on the premise of reducing the labor intensity of operators and improving the wire stripping operation efficiency.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, a wire cutting and stripping device 10 according to an embodiment of the present application includes a main machine 100, a connector 200, a fixed cutter 300 and a movable cutter 400, wherein the connector 200 is detachably mounted on the main machine 100, the fixed cutter 300 is detachably mounted on an end of the connector 200 away from the main machine 100, the movable cutter 400 is detachably connected to an end of the connector 200 away from the main machine 100 in a transmission manner, and the movable cutter 400 can controllably reciprocate to form a cutting gap with the fixed cutter 300 with a variable size so as to perform a wire cutting or stripping operation on a wire 20.
In some embodiments, the host 100 includes a housing 110, a drive element (not shown), and a power supply 120. The casing 110 is a hollow casing 210 structure, and includes a casing 111 and a holding portion 112, where the holding portion 112 is generally cylindrical and is fixedly disposed at the bottom of the casing 111, so as to be convenient for a user to hold for performing a wire cutting and stripping operation. The driving element is installed in the casing 110, and has a movable end connected to the joint 200, so as to be capable of being drivingly connected to the movable cutter head 400, so as to drive the movable cutter head 400 to reciprocate relative to the fixed cutter head 300, and the driving mode of the driving element is preferably hydraulic driving. The power source 120 is preferably a lithium battery, and is detachably mounted at an end of the holding portion 112 away from the body 111, and the power source 120 is electrically connected to the driving element for supplying power to the driving element, and the power source 120 may be not a battery, but an external power source, which is not limited herein.
In a preferred embodiment, the casing 110 is further provided with a power supply 120 driving button 113 and a reset button 114, and the power supply 120 driving button 113 is electrically connected to the power supply 120 for starting or stopping the power supply 120 to supply power to the driving element. The reset button 114 is mechanically coupled to the driving element for immediate return to the initial position upon actuation of the movable cutter head 400.
In some embodiments, the joint 200 includes a housing 210 and a piston (not shown). One end of the housing 210 is preferably connected to the body 111 of the main body 100 by means of a screw connection, the other end is connected to the fixed cutter head 300, the housing 210 is provided with a through hole communicating with the axial direction of the housing 210, the piston is partially accommodated in the through hole and can reciprocate along the axial direction of the through hole, one end of the piston is connected to the movable end of the driving element, and the other end is connected to the movable cutter head 400, so that the movable cutter head 400 is connected to the driving element by means of a piston transmission. When the driving element is started, the piston of the joint 200 can be driven to reciprocate, so that the movable cutter head 400 is driven to reciprocate, and the movable cutter head is matched with the fixed cutter head 300 to perform cutting and wire stripping operations.
In some embodiments, one end of the fixing tool bit 300 is detachably fixed to the outer wall of the housing 210 of the connector 200, the fixing tool bit 300 is provided with a clamping hole 301 communicating with opposite sides of the fixing tool bit 300, and the wire 20 can be penetratingly inserted and limited in the clamping hole 301, so as to fix the wire 20, thereby preventing the wire 20 from being effectively fixed and moving around when the wire 20 is cut or stripped, and resulting in the wire stripping quality being affected.
The inventor found in the study that although the above structure is convenient for fixing the wire 20, the wire 20 must pass through the clamping hole 301 from one side of the fixing tool bit 300 to the other side, and when the length of the wire 20 is several kilometers, the wire 20 is inconvenient to pass through due to the too long length.
To solve the above-described problems, the stationary cutter 300 may be designed in a structure capable of being opened or closed. Specifically, as shown in fig. 2, the fixed cutter head 300 includes a fixed portion 310 and a movable portion 320, the fixed portion 310 has three connection ends, namely a first connection end 311, a second connection end 312 and a third connection end 313, in a preferred embodiment, the connection lines of the three connection ends are isosceles triangle, the length of the connection line between the first connection end 311 and the second connection end 312 is equal to the length of the connection line between the first connection end 311 and the third connection end 313, and the connection line between the second connection end 312 and the third connection end 313 is perpendicular to the central axis of the connector 200, wherein the first connection end 311 is detachably fixed to the outer wall of the connector 200 at the end far from the host 100, and the second connection end 312 and the third connection end 313 are used for connecting with the movable portion 320. The fixing portion 310 is provided with a clamping groove 314 at an end thereof away from the connector 200. In one embodiment, the clamping groove 314 is preferably shaped as a concave arc from the movable portion 320 toward the fixed portion 310 for clamping the cylindrical wire 20.
Corresponding to the clamping groove 314 of the fixed portion 310, as shown in fig. 3, one end of the movable portion 320, which is close to the fixed portion 310, is provided with a first cutting edge 321. In the first embodiment, the first cutting edge 321 is also in a concave arc shape in the direction from the fixed portion 310 to the movable portion 320, the shape of the first cutting edge 321 may be symmetrical to the shape of the clamping groove 314 of the fixed portion 310, the radii of the two arcs may be equal to each other, or may not be symmetrical to each other, and the radii of the two arcs are different. The first cutting edge 321 and the clamping groove 314 together define the clamping aperture 301. The movable portion 320 has two connection ends, namely a fourth connection end 322 and a fifth connection end 323, and the fourth connection end 322 is rotatably hinged to the second connection end 312 of the fixed portion 310, so that the movable portion 320 can rotate relative to the fixed portion 310, and meanwhile, the fifth connection end 323 can be connected with the third connection end 313 of the fixed portion 310 through a bolt, so that the movable portion 320 and the fixed portion 310 are in an opened or closed state. When the fifth connection end 323 of the movable portion 320 is not connected with the third connection end 313 of the fixed end, the movable portion 320 and the fixed portion 310 are in an opened state; when the fifth connecting end 323 of the movable portion 320 is connected with the third connecting end 313 of the fixed end through a latch, the movable portion 320 and the fixed portion 310 are in a closed state, and at this time, the first cutting edge 321 of the movable portion 320 and the clamping groove 314 of the fixed portion 310 together define a clamping hole 301 that approximates to a waist shape.
It should be noted that, the connection form of the second connection end 312 of the fixed portion 310 and the fourth connection end 322 of the movable portion 320 is not limited to the hinge connection, and may be a pin connection, a hinge connection or a hinge connection; the connection between the third connection end 313 of the fixed portion 310 and the fifth connection end 323 of the movable portion 320 is not limited to a latch connection, but may be a snap connection.
In some embodiments, the movable cutter 400 has a shape similar to that of the fixing portion 310 of the fixed cutter 300, and one end of the movable cutter 400 is inserted into the through hole of the housing 210 of the joint 200 and detachably coupled with the piston of the joint 200. The movable cutter head 400 has a second cutting edge 410 at one end far away from the joint 200, the shape of the second cutting edge 410 is completely symmetrical to the shape of the first cutting edge 321 of the movable part 320 of the fixed cutter head 300, when the movable part 320 of the fixed cutter head 300 is closed with the fixed part 310 of the fixed cutter head 300, the second cutting edge 410 is located at one side of the movable cutter head 400 facing the first cutting edge 321, and the first cutting edge 321 and the second cutting edge 410 together form a cutting gap. In the first embodiment, the shape of the second cutting edge 410 is also preferably a concave arc identical to the shape of the first cutting edge 321 in a direction pointing from the movable portion 320 of the fixed cutter head 300 to the fixed portion 310.
Thus, as shown in fig. 1, the movable cutter 400 is located behind the fixed portion 310 in the fixed cutter 300, and the driving member can drive the movable cutter 400 to move toward or away from the movable portion 320 in the fixed cutter 300, so that the second cutting edge 410 of the movable cutter 400 can be located near or away from the first cutting edge 321 of the fixed cutter 300, and the second cutting edge 410 of the movable cutter 400 is located in the same plane as the first cutting edge 321 of the fixed cutter 300.
When the wire 20 is inserted and clamped in the clamping hole 301 of the fixed cutter 300, the power source 120 is pressed to drive the button 113, and the second cutting edge 410 of the movable cutter 400 approaches in a direction approaching the first cutting edge 321 of the fixed cutter 300 until the movable cutter 400 moves to the maximum stroke. At this time, the cutting gap formed by the first cutting edge 321 and the second cutting edge 410 is already much smaller than the outer diameter of the wire 20, so that the wire 20 can be cut. When the reset button 114 is pressed or the movable cutter 400 waits for the end of the stroke, the movable cutter 400 is reset to the original position in a direction away from the movable portion 320 of the fixed cutter 300, the power source 120 is pressed again to drive the button 113, the second cutting edge 410 is again moved closer to the first cutting edge 321 of the fixed cutter 300, and the cutting operation on the wire 20 is completed again until the movable cutter 400 moves to the maximum stroke.
As shown in fig. 4 and 5, a second embodiment of the structure of the fixed cutter 300 and the movable cutter 400 is a structure in which the shape of the first cutting edge 321 of the movable portion 320 in the fixed cutter 300 and the shape of the second cutting edge 410 in the movable cutter 400 are different from those of the first embodiment. In this embodiment, a semicircular first core holding groove 3211 is further formed at the middle position of the first cutting edge 321, and a semicircular second core holding groove 411 is further formed at the middle position of the second cutting edge 410.
As shown in fig. 1 and 5, when the wire 20 is inserted and clamped in the clamping hole 301 of the fixed cutter 300, the power source 120 is pressed to drive the button 113, and the second cutting edge 410 of the movable cutter 400 approaches in a direction approaching the first cutting edge 321 of the fixed cutter 300 until the movable cutter 400 moves to the maximum stroke. At this time, as shown in fig. 5, the first core clamping groove 3211 of the first cutting edge 321 and the second core clamping groove 411 of the second cutting edge 410 together form a circular core clamping position 101, the diameter of the core clamping position 101 is equal to the diameter of the steel core 210 in the middle of the wire 20, and the cutting gap formed by the rest of the first cutting edge 321 excluding the first core clamping groove 3211 and the rest of the second cutting edge 410 excluding the second core clamping groove 411 is also much smaller than the outer diameter of the wire 20. Thus, the outer aluminum stranded wire part of the wire 20 is cut off, and only the steel core 210 in the middle of the wire 20 is clamped in the core clamping position 101, so that wire stripping operation is realized. When the reset button 114 is pressed or the movable cutter 400 waits for the stroke, the movable cutter 400 is reset to the original position in a direction away from the movable portion 320 of the fixed cutter 300, the power source 120 is pressed again to drive the button 113, the second cutting edge 410 is moved closer to the first cutting edge 321 of the fixed cutter 300 again, and the wire stripping operation on the wire 20 is completed again until the movable cutter 400 moves to the maximum stroke.
It should be noted that the shapes of the first cutting edge 321 and the second cutting edge 410, and the shapes of the first core clamping groove 3211 of the first cutting edge 321 and the second core clamping groove 411 of the second cutting edge 410 are not limited to the shapes mentioned in the above embodiments, the shapes of the first cutting edge 321 and the second cutting edge 410 may be designed according to the outer shape of the wire 20, and the shapes of the core clamping groove 314 may be designed according to the shape of the steel core 210 in the middle of the wire 20, so long as the shapes of the first cutting edge 321 and the second cutting edge 410 are matched with the outer shape of the wire 20, and the shapes of the first core clamping groove 3211 and the second core clamping groove 411 are matched with the shape of the steel core 210 in the middle of the wire 20, so that the fixed cutter 300 needs to be replaced together with the movable cutter 400 when replacing the cutter.
In some embodiments, as shown in fig. 1, the wire cutting and stripping device 10 further includes an auxiliary handle 500, one end of the auxiliary handle 500 is rotatably connected to the third connecting end 313 of the fixing portion 310 in the fixing tool bit 300, and the purpose of the auxiliary handle 500 is to make it inconvenient for a user to use one hand to hold the holding portion 112 of the host 100 while carrying the wire cutting and stripping device 10 because the weight of the wire cutting and stripping device 10 is heavy, so that after the auxiliary handle 500 is rotatably connected to the fixing tool bit 300, the user can use the other hand to hold the auxiliary handle 500 at the same time, and can adjust the angle of the auxiliary handle 500 according to the holding comfort of the user, thereby carrying the wire cutting and stripping device 10 more conveniently.
The wire cutting and stripping device 10 has the following characteristics:
Firstly, the holding part 112 is designed on the host 100, and then a connector 200 is arranged to connect with the host 100, and the fixed tool bit 300 and the movable tool bit 400 are simultaneously connected with the connector 200, so that the wire cutting and stripping device 10 provided by the invention is miniaturized in design and convenient to carry by hand.
Secondly, by adopting lithium electrohydraulic driving and combining the core clamping grooves 314 formed in the fixed tool bit 300 and the movable tool bit 400, the wire cutting and stripping device 10 provided by the invention has large biting force when in wire stripping operation, can realize accurate wire stripping, does not accidentally damage the steel core 210, and can simultaneously consider wire stripping efficiency and wire stripping precision.
And the connector 200 and the host 100, the fixed tool bit 300 and the connector 200 and the movable tool bit 400 and the connector 200 are all connected in an easy-to-detach manner, so that the fittings of the wire cutting and stripping device 10 provided by the invention are easy to replace, and the tool bits with different shapes can be conveniently replaced to adapt to cutting and stripping operations on different types of wires 20.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A wire cutting and stripping device, comprising:
A host;
The fixed tool bit is detachably arranged on the host machine and comprises a fixed part and a movable part, one end of the movable part is rotatably connected with one end of the fixed part, the movable part can rotate relative to the fixed part to switch between an open state and a closed state, the movable part is provided with a first cutting edge, the fixed part is provided with a clamping groove, and when the movable part and the fixed part are in the closed state, the first cutting edge and the clamping groove jointly define a clamping hole for penetrating and fixing a wire;
the movable tool bit is detachably connected with one end of the host machine, provided with the fixed tool bit, and is positioned at one side of the fixed tool bit;
The movable cutter head can controllably reciprocate relative to the fixed cutter head so as to form a cutting gap with a variable size together with the fixed cutter head, a second cutting edge is formed on one side of the movable cutter head, which faces the first cutting edge, and the first cutting edge and the second cutting edge jointly define the cutting gap; the first cutting edge is in a concave arc shape in the direction pointing to the movable part from the fixed part; the second cutting edge and the clamping groove are concave circular arcs in the direction pointing to the fixed part from the movable part;
the connector comprises a shell and a piston, wherein the shell is connected with the host in a matching way, and the piston is accommodated in the shell and can controllably reciprocate along the axial direction of the shell; the fixed tool bit is connected with the shell, and the movable tool bit is connected with the piston.
2. The wire cutting stripping device of claim 1 wherein the stationary blade is removably attached to the housing and the movable blade is removably attached to the piston.
3. The wire cutting and stripping device according to claim 2, wherein the fixing portion comprises a first connecting end, a second connecting end and a third connecting end, a connecting line of the second connecting end and the third connecting end is perpendicular to a central axis of the connector, the first connecting end is detachably fixedly connected to an outer wall of the connector far away from one end of the host, and the second connecting end and the third connecting end are used for being connected with the movable portion.
4. The wire cutting and stripping device according to claim 3, wherein the movable part comprises a fourth connection end and a fifth connection end, the fourth connection end is rotatably hinged with the second connection end, and the fifth connection end is capable of being connected with the third connection end so that the movable part and the fixed part are in an opened or closed state.
5. The wire cutting and stripping device according to claim 1, wherein the shape of the first cutting edge and the shape of the clamping groove of the fixing part are symmetrical to each other, and the radius of the arc of the first cutting edge is equal to the radius of the arc of the clamping groove.
6. The wire cutting and stripping device according to claim 1 wherein the first cutting edge is provided with a first core clamping groove and the second cutting edge is provided with a second core clamping groove, the first core clamping groove and the second core clamping groove together forming a core clamping position when the first cutting edge and the second cutting edge are in proximity to each other.
7. The wire cutting and stripping device as recited in claim 1 further comprising an auxiliary handle having one end rotatably mounted to the stationary blade.
8. The wire cutting and stripping device according to claim 2, wherein the host machine comprises a driving element, and the driving element is in transmission connection with the movable tool bit and is used for driving the movable tool bit to reciprocate relative to the fixed tool bit.
9. The wire cutting and stripping device according to claim 8, wherein the host further comprises a body and a holding part, the holding part is connected to the body, and the connector is detachably inserted into one end of the body.
10. The wire cutting and stripping device according to claim 8 wherein the host machine is provided with a reset button mechanically coupled to the drive element for driving the movable blade back to an initial position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111458527.5A CN113991554B (en) | 2021-12-01 | 2021-12-01 | Wire cutting and stripping device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111458527.5A CN113991554B (en) | 2021-12-01 | 2021-12-01 | Wire cutting and stripping device |
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| CN113991554B true CN113991554B (en) | 2024-09-27 |
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| CN116031802A (en) * | 2022-11-30 | 2023-04-28 | 深圳供电局有限公司 | A live stripping pliers |
| CN116706784B (en) * | 2023-08-01 | 2023-11-28 | 浙江启明海洋电力工程有限公司 | Sea cable cutter |
| CN118198819B (en) * | 2024-02-29 | 2025-09-05 | 魏德米勒电联接（上海）有限公司 | Terminal stripping and crimping machines |
| CN119133980B (en) * | 2024-11-12 | 2025-02-18 | 厦门高展飞电子科技有限公司 | Full-automatic wire harness double-end terminal machine |
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| CN108321732A (en) * | 2018-01-18 | 2018-07-24 | 北京电力工程有限公司 | Hand-held wire stripper |
| CN108808575A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Wire stripper |
| CN110943355A (en) * | 2019-12-16 | 2020-03-31 | 国网北京市电力公司 | A split-type transmission wire electric stripping machine |
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| ES1079036Y (en) * | 2013-03-05 | 2013-07-25 | Toboso Manuel Garcia | Electric wire stripping machine tool. |
| CN105591321A (en) * | 2014-11-17 | 2016-05-18 | 天津市盛立达机械设备有限公司 | Cable sheath peeling apparatus |
| CN209104700U (en) * | 2018-11-26 | 2019-07-12 | 金华铂腾科技有限公司 | A kind of integral type quick cable-stripping machine |
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| CN108321732A (en) * | 2018-01-18 | 2018-07-24 | 北京电力工程有限公司 | Hand-held wire stripper |
| CN108808575A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Wire stripper |
| CN110943355A (en) * | 2019-12-16 | 2020-03-31 | 国网北京市电力公司 | A split-type transmission wire electric stripping machine |
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