CN210898328U - Cable joint circular cutting finishing device - Google Patents

Abstract

The utility model discloses a cable joint circular cutting and trimming device, which comprises a long strip-shaped supporting seat, wherein a tool rest and a fixing frame which are arranged oppositely are arranged on the supporting seat, a tool bit mounting part is arranged on the tool rest and is used for mounting different tool bit components in a replaceable way, and the tool bit components at least comprise a circular cutting tool bit group; the fixed frame is used for fixing the other end of the cable joint and is rotationally connected with the supporting seat through a rotating structure; in the circular cutting process, the distance between the fixed frame and the tool rest is stable, so that the starting point and the end point of the circular cutting tool bit cannot deviate; in addition, the length of the ring cutting tool bit on the ring cutting tool bit group is kept fixed in the ring cutting process, so that different depths of cut edges are avoided, the main insulating layer in the outer semi-conductive layer is prevented from being scratched, and a high-quality cable connector is manufactured.

Description

Cable joint circular cutting finishing device

Technical Field

The utility model relates to a cable manufacture equipment technical field especially relates to a cable joint ring cutting trimming device.

Background

In recent years, with the increase of urban power load, urban power transmission and carrying capacity needs to be improved urgently, and cable line laying and installation in cities are imperative. As an important component of the urban power grid, the high-voltage cable line plays an important role in ensuring the safe operation of the urban power grid, while in the process of cable installation and construction, the processing of the cable joint is the most important work, and because the manufacturing quality of the cable joint is related to the service life of the whole cable, the requirement on the manufacturing level of the cable joint is particularly high. As shown in fig. 12, a general cable structure includes a core 10, an inner semiconductive layer 11, a main insulation layer 12, an outer semiconductive layer 13, and an armor layer covering the core 10, in a process of manufacturing a cable joint, stripping and cutting of the outer semiconductive layer 13 (also called an insulating shield) of the cable is an important process, an operator usually uses a common cutter such as an electrician knife to perform circular cutting of the outer semiconductive layer 13, the level of the installation and manufacturing process of the operator determines the treatment effect of the outer semiconductive layer 13, and if the fracture of the outer semiconductive layer 13 is uneven and discontinuous, the electric field intensity at the site will be concentrated, and breakdown discharge is very easy to occur. Under the condition that the manufacturing levels of operators are uneven, all cable heads are difficult to meet the process requirements, the difficulty in installing and manufacturing cables is increased to a certain extent due to the limitation of the field environment, so that potential safety hazards exist in the operation of distribution network cables, and cable accidents emerge endlessly. In order to solve the above problems, there are also ring cutting tools for peeling off the outer semiconductive layer 13 on the cable, but these tools easily cause the problem that the starting end and the terminal end of the blade are not coincident during the rotary ring cutting process, so that the spiral blade can not be cut on the cable joint, and therefore the requirements for the operation of the operators are still high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem not enough and provide a cable joint ring-cutting trimming device that not only can reduce individual handling ability requirement by a wide margin but also can carry out high quality ring-cutting construction to cable joint's outer semi-conducting layer.

In order to achieve the purpose, the utility model discloses a cable joint ring cutting and trimming device, which comprises a long strip-shaped supporting seat, wherein a tool rest and a fixing frame which are oppositely arranged are arranged on the supporting seat, the tool rest is positioned at one end of the supporting seat, a tool bit mounting part is arranged on the tool rest and is used for replaceably mounting different tool bit assemblies, and the tool bit assemblies at least comprise a ring cutting tool bit group; the fixing frame is used for being fixed at one end of the cable joint and is rotationally connected with the supporting seat through a rotating structure, and the supporting seat and the tool rest can rotate around the cable joint in the circumferential direction through the rotating structure.

Compared with the prior art, the utility model discloses cable joint circular cutting trimming device not only is provided with the knife rest, and be provided with the mount that is used for fixing at cable joint, knife rest and mount are located the relative both ends on the supporting seat respectively, during cable joint preparation, place cable joint's tip and fixed with the mount, place the knife rest at the cable joint position of waiting to strip, exert pressure and make the tool bit on the tool bit subassembly pierce in cable joint's the outer semi-conducting layer, then board moves supporting seat and takes the knife rest to rotate a week around cable joint together, thereby make the blade on the circular cutting tool head group cut out an annular edge on cable joint, then can tear the outer semi-conducting layer that will get rid of from this annular edge department easily; in the circular cutting process, the distance between the fixed frame and the tool rest is stable, so that the starting point and the end point of the circular cutting tool bit cannot deviate; in addition, the length of the ring cutting tool bit on the ring cutting tool bit group is kept fixed in the ring cutting process, so that the difference of the depth of the cut edge is avoided, the main insulating layer in the outer semi-conductive layer is avoided being scratched, and a high-quality cable joint is manufactured.

Preferably, the rotating structure comprises a rotating shaft arranged on the fixed frame and a connecting piece arranged on the supporting seat, one end of the connecting piece, which transversely extends out of the supporting seat, is provided with a rotating sleeve which can be sleeved on the rotating shaft, the fixed frame is arranged on one side of the supporting seat, and the connecting piece is rotatably connected with the fixed frame through the matching of the rotating sleeve and the rotating shaft.

Preferably, the fixing frame is further connected with a slide rail arranged on the supporting seat in a sliding manner through a slide block, so that the fixing frame can be close to or far away from the tool rest in a sliding manner.

Preferably, the cutter head assembly further comprises a longitudinal cutter head group, and when the supporting seat is pulled longitudinally, the longitudinal cutter head group can cut longitudinally along the cable joint.

Preferably, the cutter head assembly further comprises a flange finishing cutter head group, wherein an arc-shaped blade is arranged on the flange finishing cutter head group, and the flange formed on the cable joint subjected to the circular cutting process can be subjected to circular cutting again through the arc-shaped blade so as to form a gradual slope on the flange.

Preferably, the knife rest includes upper bracket and lower carriage, the lower carriage with supporting connection, the upper bracket install in the top of supporting seat and with lower carriage pivotal connection, the upper bracket with space between the lower carriage forms the clamping part that is used for centre gripping cable joint, still be provided with a torsional spring on the pivotal axis between upper bracket and the lower carriage, the torsional spring does the upper bracket provides the constant to lower carriage pivoted drive power, for cable joint provides certain clamping-force.

Preferably, an operating handle is respectively arranged on the upper frame and the lower frame, and the upper frame and the lower frame can be rotated through the operating handle so as to open the clamping space between the upper frame and the lower frame.

Preferably, the operating handles on the upper frame and the lower frame are respectively pivotally connected with the operating handles, and two operating handles are respectively provided with a blocking part near one end of the upper frame and one end of the lower frame, so that the operating handles on the upper frame can only be upwards rotated to be attached to the upper frame, and the operating handles on the lower frame can only be downwards rotated to be attached to the lower frame.

Preferably, the tool bit mounting part comprises a mounting hole which is arranged on the upper frame or the lower frame and communicated with the clamping part, and a tenon for fastening the tool bit assembly in the mounting hole is arranged in the mounting hole.

Preferably, the lower frame or the upper frame is provided with a roller for bearing the cable joint.

Drawings

Fig. 1 is a schematic structural diagram of a state of use of the cable joint circular cutting finishing device according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a cable joint ring cutting and trimming device according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of the fixing frame in fig. 2.

Fig. 4 is a perspective view of the tool holder of fig. 2 from one of its viewing angles.

Fig. 5 is a perspective view of the blade holder of fig. 2 from another perspective.

Fig. 6 is a schematic perspective view of a cutting head set of a cable joint ring cutting finishing device according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view of a longitudinal cutter head set of a cable joint circular cutting finishing device according to an embodiment of the present invention.

Fig. 8 is a schematic perspective view of a flange trimming tool set of a cable joint ring cutting trimming device according to an embodiment of the present invention.

Fig. 9 is a schematic perspective view of a flange finishing tool bit set according to an embodiment of the present invention.

Fig. 10 is a schematic longitudinal sectional view of a roller of a cable splice ring cutting and trimming apparatus according to an embodiment of the present invention.

Fig. 11 is a schematic view of the knife edge distribution on the cable joint according to the embodiment of the present invention.

Fig. 12 is a schematic cross-sectional view of a cable structure according to an embodiment of the present invention.

Fig. 13 is a schematic plan view of a cable connector ring cutting finishing device in an embodiment of the present invention after stripping and cutting the cable incoming line in fig. 12.

Detailed Description

In order to explain technical contents, structural features, implementation principles, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments.

As shown in fig. 1, 2 and 4, the present embodiment discloses a cable joint ring cutting and trimming device, which includes a long strip-shaped supporting seat 2, a tool holder 3 and a fixing frame 4 are installed on the supporting seat 2, the tool holder 3 is located at one end of the supporting seat 2, a tool bit mounting portion 31 is installed on the tool holder 3, the tool bit mounting portion 31 is used for replaceably mounting different tool bit assemblies 32, each tool bit assembly 32 includes at least one ring cutting tool bit group 320 (as shown in fig. 6), and tool bits on the ring cutting tool bit group 320 extend along a direction perpendicular to a long axis of the cable joint 1. The fixing frame 4 is used for fixing the other end of the cable joint 1, the fixing frame 4 is rotatably connected with the supporting seat 2 through a rotating structure 5, and the supporting seat 2 can rotate around the cable joint 1 along with the tool rest 3 in the circumferential direction through the rotating structure 5. Preferably, as shown in fig. 2, the rotating structure 5 includes a rotating shaft 50 disposed on the fixing frame 4 and a connecting member 51 disposed on the supporting seat 2, a rotating sleeve 52 capable of being sleeved on the rotating shaft 50 is disposed on one end of the connecting member 51 transversely extending out of the supporting seat 2, the fixing frame 4 is disposed on one side of the supporting seat 2, and the connecting member 51 is rotatably connected to the fixing frame 4 by the cooperation of the rotating sleeve 52 and the rotating shaft 50. When a torque is applied to the supporting base 2, the supporting base 2 drives the connecting member 51 to rotate around the rotating shaft 50 of the fixing frame 4. In this embodiment, as shown in fig. 3, the fixing frame 4 is an コ -shaped structural member, a screw hole is provided on an upper arm of the コ -shaped structural member, a butterfly bolt 40 is provided in the screw hole, and the cable connector 1 on the fixing frame 4 can be fixed by the butterfly bolt 40.

The working process of the cable joint circular cutting and trimming device is as follows: firstly, a cutting head group 320 is installed on a cutting head installation part 31, then a fixed frame 4 is placed at the end part of a cable joint 1 and is fixed by rotating a butterfly bolt 40, a tool rest 3 is placed at a part to be stripped of the cable joint 1 (as shown in figure 1), pressure is applied to enable a cutting head 3200 on the cutting head group 320 to penetrate into an outer semi-conducting layer 13 of the cable joint 1, then a supporting seat 2 and the tool rest 3 are pulled to rotate around the cable joint 1 for at least one circle, and therefore the cutting head 3200 on the cutting head group 320 cuts an annular cutting edge on the cable joint 1. In the above circular cutting process, since the fixed frame 4 is stably spaced from the cutting head 3200, the initial point and the final point of the cutting head 3200 are not deviated. In addition, since the length of the ring-cutting bit 3200 on the ring-cutting bit group 320 is kept constant during the ring-cutting process, the difference in the depth of the cut edge is avoided, the main insulation layer 12 in the outer semi-conductive layer 13 is prevented from being scratched, and thus the high-quality cable joint 1 is manufactured.

As shown in fig. 2, in order to make the cable joint ring cutting trimming device adapt to cable joints 1 with different lengths, the fixing frame 4 is also connected with the supporting seat 2 in a sliding way through a sliding structure, so that the fixing frame 4 can be close to or far away from the tool rest 3 in a sliding way. The sliding structure comprises a sliding rail 20 arranged on the supporting seat 2 and a sliding block 21 arranged on the sliding rail 20, wherein the sliding block 21 is connected with the fixed frame 4. Specifically, the connecting member 51 of the rotating structure 5 is mounted on the sliding block 21, and when the sliding block 21 slides, the fixing member is driven by the connecting member 51 to slide along the supporting seat 2 so as to be close to or far from the tool rest 3. In addition, scales can be marked on the slide rail 20 and the slide block 21, so that the girdling position (not shown) of the tool bit 3200 can be conveniently positioned.

After the ring cutting operation is finished, in order to facilitate the tearing off of the outer semi-conductive layer 13 on the cable joint 1, as shown in fig. 11, one or more longitudinal knife edges d2 can be further longitudinally cut from the ring cutting edge d1 on the cable joint 1, so that the cutter head assembly 32 further comprises a longitudinal cutter head set 321 (as shown in fig. 7), and when the supporting seat 2 is longitudinally pulled, the longitudinal cutter head set 321 can longitudinally cut along the cable joint 1. After the cable joint circular cutting finishing device is adopted to carry out outer circular cutting work on the cable joint 1, the circular cutter head group 320 is detached, the longitudinal cutter head group 321 is replaced, the butterfly bolt 40 on the fixed frame 4 is loosened, as the cutter head 3210 on the longitudinal cutter head group 321 is parallel to the long axis of the cable joint 1, when the supporting seat 2 is pulled longitudinally to move towards the fixed frame 4, the cutter head 3210 on the longitudinal cutter head group 321 moves longitudinally along the circular cutter opening d1 on the cable joint 1, so that a longitudinal cut d2 connected with the circular cutter opening d1 is scribed on the outer semi-conductive layer 13 on the cable joint 1, and then the outer semi-conductive layer 13 is clamped from the longitudinal cutter opening d2 by using a nail or a forceps to be easily stripped.

After a section of the outer semi-conducting layer 13 on the cable joint 1 is stripped, as shown in fig. 9, a flange 14 is formed at the girdling cut d1, and due to the existence of the flange 14, the jumping amplitude of the space structure and the electric field is increased, which is not beneficial to the normal operation of the cable joint 1, therefore, in a further improvement, as shown in fig. 8, the cutter head assembly 32 further comprises a flange finishing cutter head set 322, an arc-shaped blade 3220 is arranged on the flange finishing cutter head set 322, and the flange 14 formed on the cable joint 1 after the girdling process can be subjected to the girdling process again through the arc-shaped blade 3220 to form the flange 14 into a gradual and gentle slope (as shown in fig. 13), so as to reduce the jumping amplitude of the space structure and the electric field at the cable joint 1 to the maximum extent.

As shown in fig. 4 and 5, the tool holder 3 includes an upper frame 33 and a lower frame 34, the lower frame 34 is connected to the supporting base 2, the upper frame 33 is installed above the supporting base 2 and pivotally connected to the lower frame 34, a space between the upper frame 33 and the lower frame 34 forms a clamping portion 30 for clamping the cable connector 1, a torsion spring 35 is further disposed between the upper frame 33 and the lower frame 34, and the torsion spring 35 provides a constant driving force for the upper frame 33 to rotate towards the lower frame 34, so as to provide a certain clamping force for the cable connector 1. In construction, the upper frame 33 is rotated to open the space between the upper frame 33 and the lower frame 34, so that the end of the cable joint 1 to be circularly cut enters the clamping portion 30, and then the upper frame 33 is loosened to clamp the cable joint 1 in the clamping portion 30 through the torsion spring 35. Further, for convenience of operation, an operating handle 36 is provided on each of the upper frame 33 and the lower frame 34, and the two operating handles 36 are disposed opposite to each other, so that when the clamping space between the upper frame 33 and the lower frame 34 is to be opened, the operating handles 36 on the upper frame 33 and the lower frame 34 are held by hands to approach each other. In addition, when the supporting seat 2 rotates, in order to avoid the operating handle 36 occupying a large space, it is preferable that the operating handles 36 on the upper frame 33 and the lower frame 34 are respectively pivotally connected thereto, and one ends of the two operating handles 36 close to the upper frame 33 and the lower frame 34 respectively are provided with a blocking portion 360, so that the operating handle 36 on the upper frame 33 can only rotate upwards to be attached to the upper frame 33, and the operating handle 36 on the lower frame 34 can only rotate downwards to be attached to the lower frame 34. When the supporting base 2 is rotated, the two operating handles 36 are folded, so that the other two cable joints are prevented from being touched, and the operating space is saved.

In order to facilitate replacement of the tool bit assembly 32, as shown in fig. 4, the tool bit mounting portion 31 includes a mounting hole 310 provided on the upper frame 33 or the lower frame 34 and communicating with the clamping portion 30, and a tenon 311 for fastening the tool bit assembly 32 therein is provided in the mounting hole 310, and when the tool bit assembly 32 is replaced, the tenon 311 is firstly pulled out, and then the tenon 311 is inserted, which is convenient to use.

When the supporting base 2 rotates, in order to reduce the friction between the blade holder 3 and the cable connector 1, please refer to fig. 4 and 5 again, the lower frame 34 is provided with a roller 37 for carrying the cable connector 1. Preferably, as shown in fig. 10, the two ends of the roller 37 are chamfered, that is, the edges at the two ends of the roller 37 are processed into a gentle arc surface, so as to prevent the edges at the ends of the roller from damaging the cable connector 1 under the clamping action of the upper frame 33 and the lower frame 34. In addition, when the central axis of the cable joint 1 has an error with the axis of the rotating shaft 50 on the fixed frame 4, during the rotation of the supporting seat 2, the heights of the two ends of the cable joint 1 have a certain deviation, and at this time, the cable joint 1 is tilted on the roller 37, so that the cable joint 1 is only contacted with one point of the roller 37, the local stress of the cable joint 1 is increased, and the cable joint 1 is easily damaged, therefore, the further improvement is that the middle part of the roller 37 slightly bulges outwards, so that the roller 37 is approximately in an olive-shaped structure, and thus, when the heights of the two ends of the cable joint 1 are deviated, the cable joint 1 is authorized to be kept contacted with the two points of the roller 37. The middle of the roller 37 is only slightly bulged outwards, so that the use of the two ends of the cable connector 1 at the same height is not affected.

In conclusion, above-mentioned the utility model discloses a cable joint circular cutting trimming device, both ends at supporting seat 2 are fixed respectively and are provided with a knife rest 3 and slide and be provided with a mount 4, because the setting of this mount 4, in the in-process that rotates supporting seat 2 and drive knife rest 3 circular cutting, the initial point and the terminal point of tool bit can not take place the skew to draw a regular annular edge of a knife on cable joint 1, and then effectively guarantee the preparation quality of cable joint 1, in addition, above-mentioned operation does not have too high requirement to operating personnel's skill and experience, general staff all can operate, thereby the degree of difficulty that cable joint 1 peeled off and cut has been reduced; in addition, in the stripping and cutting process, the cutter head assembly 32 can be replaced to perform circular cutting, longitudinal cutting and flange 14 processing on the cable connector 1, so that the manufacturing quality of the cable connector 1 is further improved.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims (10)

1. A cable joint circular cutting finishing device is characterized by comprising a long-strip-shaped supporting seat, wherein a cutter rest and a fixing frame which are oppositely arranged are arranged on the supporting seat, the cutter rest is positioned at one end of the supporting seat, a cutter head mounting part is arranged on the cutter rest and used for replaceably mounting different cutter head components, and the cutter head components at least comprise a circular cutting cutter head group; the fixing frame is used for being fixed at one end of the cable joint and is rotationally connected with the supporting seat through a rotating structure, and the supporting seat and the tool rest can rotate around the cable joint in the circumferential direction through the rotating structure.

2. The apparatus as claimed in claim 1, wherein the rotating structure includes a rotating shaft disposed on the fixing frame and a connecting member disposed on the supporting seat, one end of the connecting member extending out of the supporting seat in a transverse direction is provided with a rotating sleeve capable of being sleeved on the rotating shaft, the fixing frame is disposed on one side of the supporting seat, and the connecting member is rotatably connected to the fixing frame through the cooperation of the rotating sleeve and the rotating shaft.

3. The apparatus of claim 1, wherein the holder is further slidably connected to a slide rail disposed on the support base by a slider, such that the holder is slidably movable toward and away from the blade holder.

4. The cable splice ring cutting and trimming apparatus of claim 1, wherein said cutter head assembly further includes a longitudinal cutter head stack, said longitudinal cutter head stack being operative to cut longitudinally along said cable splice when said support block is pulled longitudinally.

5. The cable tie-ring cutting and trimming device of claim 1, wherein the cutter head assembly further comprises a flange trimming cutter head set, the flange trimming cutter head set being provided with an arc-shaped blade, by which a flange formed on the cable tie subjected to the ring cutting process is subjected to a re-ring cutting process to form the flange into a gradual gentle slope.

6. The cable joint ring cutting and trimming device according to claim 1, wherein the tool holder comprises an upper frame and a lower frame, the lower frame is connected with the supporting seat, the upper frame is mounted above the supporting seat and is pivotally connected with the lower frame, a space between the upper frame and the lower frame forms a clamping part for clamping the cable joint, and a torsion spring is further arranged on a pivot shaft between the upper frame and the lower frame and provides a driving force for the upper frame to rotate towards the lower frame constantly so as to provide a certain clamping force for the cable joint.

7. The apparatus of claim 6, wherein an operating handle is provided on each of the upper frame and the lower frame, and the upper frame and the lower frame are rotated by the operating handle to open the clamping space between the upper frame and the lower frame.

8. A cable splice ring cutting and trimming apparatus according to claim 7, wherein the operating handles on the upper and lower frames are pivotally connected thereto respectively and a stop is provided adjacent one end of each of the upper and lower frames, so that the operating handle on the upper frame can only be rotated upwardly into abutment with the upper frame and the operating handle on the lower frame can only be rotated downwardly into abutment with the lower frame.

9. The apparatus of claim 6 wherein the tool bit mounting portion includes a mounting hole in the upper or lower frame in communication with the clamping portion, the mounting hole having a tenon disposed therein for securing the tool bit assembly therein.

10. The apparatus of claim 6, wherein the lower frame or the upper frame is provided with a roller for carrying the cable joint.

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