Rotatable peeling device

Abstract

The utility model provides a rotatable peeling device. The rotatable peeling device comprises a mounting seat, a slewing mechanism, a power unit and a cutter, the cutter is connected with the power unit through the swing mechanism. Wherein the cutter is of a straight-shank round chisel structure, and the cutting edge is a combined cutting edge and is at least provided with an arc main cutting edge, a plain-end auxiliary cutting edge and a bevel-end auxiliary cutting edge. A first cutter feeding position and a second cutter feeding position are at least arranged in the stroke of the slewing mechanism; when the cutter is located at the first cutter feeding position, the arc main blade is in contact with a to-be-peeled cable; and when the cutter is located at the second cutter feeding position, the plain-end auxiliary blade and the bevel-end auxiliary blade are in contact with the cable to be peeled. According to the utility model, the structure is simple, the cost is low, the design of the combined blade is matched with the application of the slewing mechanism, the capability of full-blade working is realized, so that the cost is not obviously increased by virtue of hardware design, and the cable in a general scene and a low-temperature scene is specifically peeled at different feed positions, thereby meeting the market demand and being worthy of popularization and application. The cable stripper is suitable for popularization and application in northern cable stripping scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of installation of cables or wires, or installation of photoelectric combined cables or wires, and in particular to a rotatable stripping device. Background Art

[0002] Various insulation stripping technologies for overhead conductors during live-line operations have been developed. Currently, the most widely used include handheld conductor strippers, manual insulation rod stripping devices, and electric stripping equipment. Both manual and electric strippers, with their high degree of automation and excellent operational efficiency, play a crucial role in distribution network maintenance.

[0003] The existing stripper's blade structure usually adopts a universal blade tip design. Although this design can meet the stripping needs of conventional insulated wires, such as polyvinyl chloride and cross-linked polyethylene insulation, and maintain stable operating performance under the four-season ambient temperature in southern my country, it exposes certain technical problems under the low temperature conditions in northern winter.

[0004] Specifically, in northern my country, the outdoor temperature in winter is often below minus 20 degrees Celsius. In this environment, the physical properties of the polymer insulation layer of the insulated wire will change significantly. Low temperature causes the macroscopic manifestation of the polymer insulation layer of the insulated wire to show a sharp increase in hardness and a decrease in fracture toughness. At the same time, the surface smoothness increases significantly due to material shrinkage. In order to take into account the adaptability of wires with different wire diameters, the blade tip of the existing electric stripper usually adopts an arc transition or blunt tip design. This design can achieve insulation layer cutting through the tool feed pressure at room temperature. However, in low temperature scenarios, due to the reduction of the surface friction coefficient of the insulation layer and the hardness exceeding the critical value of the tool cutting, it is easy to cause the tool to slip during the feeding process, insufficient cutting depth, etc. In severe cases, the insulation layer cannot be effectively cut, and the operation is forced to be interrupted.

[0005] Further analysis reveals that the core contradiction of this technical issue lies in the mismatch between universal tool design and the changing physical properties of the insulation layer in extremely cold environments. Existing technical solutions fail to specifically optimize the insulation layer's hardness-temperature characteristic curve for low-temperature conditions. Furthermore, tool materials lack adaptive low-temperature wear resistance and cutting angles. This results in frequent tool changes or manual pre-cutting during winter operation in northern China, reducing efficiency and increasing the safety risks of live-line work.

[0006] In summary, how to solve the problem that the stripper cannot feed the blade normally due to the low-temperature hardening and surface smoothing of the insulation layer in the extremely cold weather in the north, and achieve efficient stripping of insulated wires in low-temperature environments, has become a technical difficulty that urgently needs to be broken through in the field of live-line working equipment in distribution networks. Utility Model Content

[0007] The utility model aims to solve the problems existing in the prior art and provides a rotatable peeling device which has a simple structure, versatility and low-temperature peeling capability.

[0008] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0009] A rotatable stripping device, mounted on the active end of a multi-axis motion mechanism, is used for rotating and feeding to cut the cable sheath, comprising a mounting seat, a rotary mechanism, a power unit, and a cutter; the cutter is connected to the power unit via the rotary mechanism; the rotary mechanism, power unit, and cutter are all mounted on the mounting seat;

[0010] The tool is a straight-handled round gouge structure, comprising a handle, a blade, and a blade; the blade is a combined blade, comprising at least a circular arc main blade, a flat-edged secondary blade, and a beveled auxiliary blade; the flat-edged secondary blade and the beveled auxiliary blade are sequentially provided on both sides of the circular arc main blade; the sharpness of the beveled auxiliary blade is less than or equal to the edge sharpness of the flat-edged secondary blade, and the sharpness of the flat-edged secondary blade is less than that of the circular arc main blade;

[0011] At least a first feed position and a second feed position are provided in the stroke of the rotary mechanism; when the tool is located at the first feed position, the arc main blade contacts the cable to be stripped; when the tool is located at the second feed position, the flat-edge secondary blade and the beveled auxiliary blade contact the cable to be stripped.

[0012] Optionally, the power unit is an electric motor;

[0013] The rotary mechanism is a plane gear transmission group; the output shaft of the motor and the tool transmission shaft are located on the same side and are arranged in parallel.

[0014] Optionally, the blade is provided with a chip guide groove;

[0015] The chip guide groove is a lofted curved surface, which connects the lower end of the tool handle and the upper end of the blade respectively, and has a convergent structure in the chip guiding direction.

[0016] Optionally, a clamping plane structure is provided on the blade body or the handle for clamping the tool with a tool or a fixture.

[0017] Optionally, the bevel angle of the bevel auxiliary edge is less than or equal to 45°.

[0018] Optionally, the mounting seat is a special-shaped structure, provided with a standard interface, a variable angle connection portion and a rotation mechanism mounting position;

[0019] The standard interface is used to adapt to the movable end of the multi-axis motion mechanism and is fixedly connected to the mounting position of the rotary mechanism through the variable angle connection portion.

[0020] Optionally, a photoelectric sensor is further included; the photoelectric sensor is installed on the mounting base, and the detection end faces the cable to be stripped.

[0021] Optionally, an infrared emitting diode and an infrared receiving diode arranged in parallel are provided inside the photoelectric sensor.

[0022] Optionally, a contoured shell is sleeved on the outer side of the mounting base, and the contoured shell is open on the side close to the photoelectric sensor, with the edge of the opening extending outward to block ambient light.

[0023] Optionally, a position detection sensor is further included; the position detection sensor is installed on the mounting base.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The utility model has a simple structure and low cost. Through the combined blade design and the application of the rotary mechanism, the full blade working capability is achieved. Therefore, by virtue of the hardware design, the cables in general scenarios and low temperature scenarios can be stripped in a targeted manner at different feed positions without significantly increasing the cost, thus meeting market demand and being suitable for large-scale promotion and application in cable stripping scenarios in the north. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the working position of the peeling device in a specific embodiment of the present utility model;

[0028] Figure 2 This is a side view of the working position of the peeling device in a specific embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the internal structure of the peeling device in a specific embodiment of the present utility model;

[0030] Figure 4 This is an exploded view of the peeling device in a specific embodiment of the present utility model;

[0031] Figure 5 This is an isometric view of the mounting base in a specific embodiment of the present utility model;

[0032] Figure 6 This is a side view of the mounting base in a specific embodiment of the present utility model;

[0033] Figure 7 This is an isometric view of a tool in a specific embodiment of the present utility model;

[0034] Figure 8 This is a three-dimensional view of the rear side of the tool in a specific embodiment of the present utility model;

[0035] Figure 9 This is a side view of a tool in a specific embodiment of the present utility model;

[0036] Figure 10 This is a rear isometric view of a tool in a specific embodiment of the present invention;

[0037] Figure 11 for Figure 10 Enlarged schematic diagram of point A in the middle.

[0038] In the figure: 1. Rotatable stripping device, 2. Cable to be stripped, 101. Mounting seat, 1011. Straight shank structure, 1012. Double lug structure, 102. Photoelectric sensor, 103. Position detection sensor, 104. Motor, 105. Plane gear transmission group, 106. Tool, 1061. Blade, 10611. Arc main blade, 10612. Flat secondary blade, 10613. Bevel auxiliary blade, 1062. Tool handle, 1063. Blade, 1064. Clamping plane structure, 1065. Chip guide groove, 1066. Cylindrical protrusion. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of the present invention, it is necessary to understand that the relative relationships indicated by the terms "upper" and "lower" are based on the order of contact with the material in the direction of rotation in actual applications. They are for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific position. Therefore, they cannot be understood as limitations on the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0043] In this utility model, unless otherwise specified or limited, the terms "installed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0044] It is worth noting that the methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products, and their sources are not specifically limited unless otherwise specified.

[0045] like Figure 1 、 Figure 2 As shown, this embodiment provides a rotatable stripping device, which is mainly installed at the movable end of the multi-axis motion mechanism and is used for rotating and feeding to cut the cable sheath.

[0046] Specifically, the device of this embodiment is used to cooperate with the cable clamping and rotating feeding device to achieve circumferential stripping. Accordingly, a multi-axis motion mechanism is installed on the aforementioned device, and the device of this embodiment is installed on the active end of the multi-axis motion mechanism, thereby achieving Figure 2 The overall movement direction of the cutter head shown by the middle arrow is used to control the cutter to cut into the outer skin of the cable 2 to be stripped at a preset position.

[0047] The rotatable peeling device 1 comprises a mounting base, a rotary mechanism, a power unit and a cutter. The cutter is connected to the power unit via the rotary mechanism; the rotary mechanism, the power unit and the cutter are all mounted on the mounting base.

[0048] Among them, the mounting seat 101 is as follows Figure 3-Figure 6As shown, it adopts a special-shaped structure, and is provided with a standard interface, a variable angle connection part and a rotary mechanism installation position. Specifically, the upper end of the mounting seat 101 adopts a straight shank structure 1011, and is processed with multiple through holes to serve as a standard interface, and the geometric dimensions of the multiple through holes are adapted to the installation position of the movable end of the multi-axis motion mechanism. Therefore, when it is necessary to adapt to different models of complete machines, it is only necessary to adjust the straight shank structure 1011 to complete the adaptation. Furthermore, the straight shank structure 1011 is fixedly connected to the rotary mechanism installation position through the variable angle connection part; the main body of the mounting seat 101 is a flat plate structure, and the variable angle connection part is a curved part. The upper part is connected to the straight shank structure 1011, and the lower part is connected to the flat plate structure to adjust the spatial position of the tool so that it has a better cutting angle. A rotary mechanism installation position is fixedly connected to the side of the flat plate structure, which adopts a double lug structure 1012 and is processed with corresponding through holes and threaded blind holes for installing the rotary mechanism.

[0049] The rotary mechanism of this embodiment is as follows Figure 3 、 Figure 4 As shown, in order to reduce the overall space size, this embodiment adopts a compact design, that is, the rotating mechanism is selected as a plane gear transmission group 105, and the power unit is an electric motor 104. Among them, in this embodiment, a simplified design is used as an example for illustration. The plane gear transmission group 105 specifically adopts two plane-meshing spur gears for transmission, and the electric motor 104 can be a miniaturized DC reduction motor, and the output shaft is coaxially connected to the driving gear in the gear group. The driven gear in the gear group is coaxially connected to the tool transmission shaft. Furthermore, the output shaft of the motor and the tool transmission shaft are designed to be on the same side and arranged in parallel. As a result, the motor 104 and the tool 106 are located on the same side, thereby achieving a compact arrangement and making full use of the tool head space.

[0050] Combine Figure 7-11 As shown, the tool 106 of this embodiment is a straight handle round chisel structure, provided with a handle 1062, a blade 1063 and a blade 1061.

[0051] Among them, the blade 1061 is a combined blade, with an overall arc-shaped cylindrical blade. The central area is the arc main blade 10611, and the two sides are respectively provided with a flat-edged secondary blade 10612 and a beveled auxiliary blade 10613. The blade adopts a round chisel structure, so the two sides are designed symmetrically. Therefore, the flat-edged secondary blade 10612 and the beveled auxiliary blade 10613 are respectively provided on both sides of the arc main blade 10611. The above design aims to make the arc main blade 10611 a universal stripping edge structure. It can be used for stripping in non-cold scenarios. When facing low-temperature scenarios, the tool 106 is rotated about the axis, and the flat-edged secondary blade 10612 and the beveled auxiliary blade 10613 are formed into a tip for initial cable peeling. Therefore, in this embodiment, the sharpness of the beveled auxiliary edge 10613 is designed to be less than or equal to the sharpness of the flat-edged secondary edge 10612 , and the sharpness of the flat-edged secondary edge 10612 is less than the sharpness of the arc main edge 10611 .

[0052] It should be noted that the above sharpness is measured by a commercially available sharpness tester. The smaller the value, the sharper the cutting edge, which is reflected in the structure as a smaller cutting edge radius or a smaller cutting edge thickness.

[0053] Furthermore, considering the edge strength, the bevel angle of the bevel auxiliary edge 10613 is less than or equal to 45°, and is preferably 45° in this embodiment.

[0054] Furthermore, in order to increase the structural strength, a coaxial cylindrical protrusion 1066 is processed on the upper part of the back of the blade 1063, thereby strengthening the connection strength between the blade 1063 and the handle 1062, and realizing the chip removal structure design through the protrusion structure. Specifically, a chip guide groove 1065 is provided on the back of the blade 1063. The upper end of the chip guide groove 1065 is connected to the cylindrical protrusion 1066, and the lower end is connected to the upper end of the blade 1061, and the chip guide groove 1065 is a lofted surface and has a convergent structure in the chip guiding direction. Such a design can keep the path smooth during the peeling and chip removal process, without sudden changes in structure, and the guide direction is relatively certain. In this embodiment, in order to facilitate the installation and disassembly of the tool 1066, a clamping plane structure 1064 is processed on the front side of the blade 1063. The platform structure is used for tooling or tools to clamp the tool 106.

[0055] Therefore, at least a first feed position and a second feed position are provided in the travel of the rotary mechanism, which respectively correspond to different areas of the blade 1061 facing the cable 2 to be stripped.

[0056] Specifically, when the cutter 106 is in the first feed position, the arcuate primary cutting edge 10611 contacts the cable 2 to be stripped; when the cutter is in the second feed position, the flat secondary cutting edge 10612 and / or the beveled auxiliary cutting edge 10613 contact the cable 2 to be stripped. The cutter 106 is driven by the motor 104 to rotate about its axis, switching between the first and second feed positions. The first and second feed positions can be determined by a limiting structure or by a motor driver based on a preset signal, and this embodiment does not impose any specific limitations thereon.

[0057] Optional, such as Figure 3 and Figure 4 As shown, the rotatable stripping device 1 of this embodiment also includes a photoelectric sensor 102, mounted on the front face of the mounting base 101, with its detection end facing the cable to be stripped. Photoelectric sensor 102 includes an infrared emitting diode and an infrared receiving diode arranged in parallel within the sensor to detect whether the metal core is exposed. Specifically, when the cable 2 to be stripped is exposed, its infrared light reflection characteristics differ from those of the outer sheath, causing the optical signal received by the receiving diode to change. By setting a threshold in the signal circuit, when the signal change exceeds the threshold, it can be determined that the cable has been stripped and the metal core has been exposed.

[0058] Further, if Figure 1 and Figure 2 As shown, a contoured shell is mounted on the outside of the mounting base 101, and its surface shape is consistent with the outer contour of the internal structure. The contoured shell is opened on the side close to the photoelectric sensor 102, so that it can detect the status of the cable 2 to be stripped, and the edge of the opening is extended outward to block ambient light to reduce problems such as ambient light interference.

[0059] Optionally, the rotatable peeling device 1 of this embodiment further includes a position detection sensor 103. Position detection sensor 103 is a slot-type photoelectric sensor mounted on the straight handle 1011 of the mounting base 101 and equipped with an external baffle. When the rotatable peeling device 1 moves to a predetermined position, the baffle engages the slot-type photoelectric sensor, thereby blocking the photoelectric signal and achieving a position reset function.

[0060] Working principle;

[0061] Taking an existing electric peeler as an example, the blade part is replaced with the device of this embodiment, and the electric peeler is partially improved by adding an ambient temperature sensor. The temperature recognition circuit is connected to the control unit of the electric peeler, and the trigger condition is whether the temperature signal exceeds the preset temperature.

[0062] When the detected ambient temperature is greater than or equal to the preset temperature, the cable is stripped by the arc main blade at the first feed position, consistent with the conventional stripping operation;

[0063] When the detected ambient temperature is lower than the preset temperature, the knife rotation signal is triggered, and the signal is distributed to the control unit of the electric stripper and the driver of the motor of this embodiment. The motor rotates until the tool reaches the second feed position and then self-locks. At this time, the tip composed of the flat-edge auxiliary blade and the beveled auxiliary blade moves with the multi-axis motion mechanism to cut into the cable sheath for stripping; when the signal generated by the photoelectric sensor exceeds the threshold, it means that the sheath is stripped off and the metal wire core is exposed. The signal enters the control unit of the electric stripper through the signal transmission line and follows the conventional retraction instruction action. The multi-axis motion mechanism drives the tool to retract laterally and stops when the position detection sensor detects that the signal is blocked, indicating that the retraction and reset are completed; afterward, according to the preset action, the motor rotates until the tool reaches the first feed position and then self-locks, and then the multi-axis motion mechanism drives the tool to feed laterally, and the remaining stripping work has been completed. The purpose of designing the first feed position-second feed position-first feed position switching according to the signal transmission signal of the signal circuit is: the surface of the cable sheath is hard and smooth at low temperatures, and the universal arc main blade will not be able to feed normally or cannot feed, so the first switching is performed according to the temperature, and the tip composed of the flat-edge auxiliary blade and the beveled auxiliary blade can only be used to feed to strip the first layer of the cable sheath to expose the metal wire core. After that, due to the angle, the stripping cannot continue, that is, the tool cannot shovel up more sheath; therefore, the sensor detects the signal, that is, when the metal wire core is stripped, the stripper stops and retracts, and performs a second switch, resets to the original position, and then the arc main blade is used to shovel up more sheath.

[0064] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A rotatable peeling device, characterized in that: Installed on the movable end of the multi-axis motion mechanism, used for rotating and feeding the cable sheath, comprising a mounting seat, a rotary mechanism, a power unit and a tool; the tool is connected to the power unit via the rotary mechanism; the rotary mechanism, the power unit and the tool are all installed on the mounting seat; The tool is a straight-handled round gouge structure, comprising a handle, a blade, and a blade; the blade is a combined blade, comprising at least a circular arc main blade, a flat-edged secondary blade, and a beveled auxiliary blade; the flat-edged secondary blade and the beveled auxiliary blade are sequentially provided on both sides of the circular arc main blade; the sharpness of the beveled auxiliary blade is less than or equal to the edge sharpness of the flat-edged secondary blade, and the sharpness of the flat-edged secondary blade is less than that of the circular arc main blade; At least a first feed position and a second feed position are provided in the stroke of the rotary mechanism; when the tool is located at the first feed position, the arc main blade contacts the cable to be stripped; when the tool is located at the second feed position, the flat-edge secondary blade and the beveled auxiliary blade contact the cable to be stripped.

2. The rotatable peeling device according to claim 1, characterized in that: The power unit is an electric motor; The rotary mechanism is a plane gear transmission group; the output shaft of the motor and the tool transmission shaft are located on the same side and are arranged in parallel.

3. The rotatable peeling device according to claim 1, characterized in that: The blade is provided with a chip guide groove; The chip guide groove is a lofted curved surface, which connects the lower end of the tool handle and the upper end of the blade respectively, and has a convergent structure in the chip guiding direction.

4. The rotatable peeling device according to claim 1, characterized in that: The blade body or the handle is provided with a clamping plane structure for clamping the tool with a tool or a fixture.

5. The rotatable peeling device according to claim 1, characterized in that: The bevel angle of the bevel auxiliary edge is less than or equal to 45°.

6. The rotatable peeling device according to claim 1, characterized in that: The mounting seat is a special-shaped structure, provided with a standard interface, a variable angle connection part and a rotation mechanism mounting position; The standard interface is used to adapt to the movable end of the multi-axis motion mechanism and is fixedly connected to the mounting position of the rotary mechanism through the variable angle connection portion.

7. The rotatable peeling device according to claim 1, characterized in that: It also includes a photoelectric sensor; the photoelectric sensor is installed on the installation seat, and the detection end faces the cable to be stripped.

8. The rotatable peeling device according to claim 7, characterized in that: The photoelectric sensor is internally provided with an infrared emitting diode and an infrared receiving diode which are arranged in parallel.

9. The rotatable peeling device according to claim 8, characterized in that: A contoured shell is sleeved on the outer side of the mounting seat, and the contoured shell is open on a side close to the photoelectric sensor, with an edge of the opening extending outwards to shield ambient light.

10. The rotatable peeling device according to claim 1, characterized in that: It also includes a position detection sensor; the position detection sensor is installed on the mounting seat.

Images