Cable stripping device and cable terminal manufacturing device

Abstract

The invention provides a cable stripping device and a cable terminal manufacturing device. The cable stripping device comprises a mounting seat, a first driving device, a second driving device and a cutter, a penetrating through hole is formed in the center of the mounting base in the axial direction, and a cable penetrates through the through hole; the cutter is rotationally connected with the inner side wall of the mounting base, and the first driving device is used for driving the cutter to rotate in the circumferential direction of the inner side wall of the mounting base; the second driving device is used for driving the cutter to stretch out and draw back in the radial direction of the mounting base and locking and fixing the cutter at any stretching-out position. According to the cable stripping device and the cable terminal manufacturing device provided by the invention, the cable stripping efficiency can be effectively improved, the manual labor intensity and the safety risk can be reduced, the operation is convenient, and the cable terminal manufacturing quality and precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of power auxiliary equipment, and in particular to a cable stripping device and a cable terminal head manufacturing device. Background Art

[0002] When making a 35KV cable terminal, you need to cut and remove the outer sheath, steel armor (or copper shielding layer), semi-conductive layer and main insulation layer in sequence, and finally expose the internal copper wire. During the cutting process, it is necessary to ensure that each cut does not damage the structure of the next layer (each time a structural layer is cut, a section of the structural layer will be exposed relative to the outer adjacent structural layer at the starting position of the cutting of the layer. For details, please refer to Figure 1 ), and the cable needs to be cut circularly and longitudinally to achieve the peeling and removal of each layer of structure. At present, the existing technology mostly uses manual methods to cut and remove each structural layer. Since the cable itself is relatively thick, the texture of each structural layer is relatively hard and has a certain thickness. The manual cutting method is very physically demanding and inconvenient to operate. There are certain safety risks. The cutting depth is also difficult to control during the cutting process, which is very easy to damage the adjacent structural layers. At the same time, the work efficiency is very low. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a cable stripping device and a cable terminal head making device, so that the various structural layers of the cable can be easily removed, the intensity of manual operation can be reduced, and the work efficiency can be improved.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] On the one hand, the present invention provides a cable stripping device, comprising: a mounting seat, a first drive device, a second drive device and a cutter; a through hole is axially provided at the center of the mounting seat, and the through hole is used to pass the cable; the cutter is rotatably connected to the inner side wall of the mounting seat, and the first drive device is used to drive the cutter to rotate circumferentially along the inner side wall of the mounting seat; the second drive device is used to drive the cutter to extend and retract radially along the mounting seat, and is used to lock and fix the cutter at any extended position.

[0006] Furthermore, the cable stripping device also includes a fixedly connected inner gear ring and a fixed seat, the mounting seat is arranged outside the inner gear ring and the fixed seat; the cutter is arranged on the inner side wall of the fixed seat; the first driving device includes a motor and a driving gear, the motor and the driving gear are drivingly connected, and the driving gear and the inner gear ring are meshed; the first driving device is used to drive the inner gear ring to rotate circumferentially along the inner wall of the mounting seat, and at the same time drive the cutter to rotate together.

[0007] Furthermore, the cable stripping device also includes a brake device, which is used to lock and fix the cutter immediately when the cutter extends outward to contact the next layer structure adjacent to the outermost layer of the cable.

[0008] Furthermore, the cable stripping device also includes a third driving device, and the third driving device is used to drive the cutter to rotate to achieve radial or longitudinal cutting of the cable. The cable stripping device also includes a third driving device, and the third driving device is used to drive the cutter to rotate to achieve radial or longitudinal cutting of the cable.

[0009] Furthermore, there are 4 groups of cutters, which are evenly distributed along the inner wall of the fixed base, and each group of cutters is respectively equipped with one of the second driving device and the third driving device. The 4 groups of cutters move synchronously under the drive of the second driving device and the third driving device.

[0010] On the other hand, the present invention further provides a cable terminal head manufacturing device, comprising the cable stripping device according to any one of claims 1 to 5, and also comprising a straightening device;

[0011] The straightening device comprises a first straightening unit and a second straightening unit, wherein the first straightening unit and the second straightening unit are respectively arranged on both sides of the axial direction of the cable stripping device; the first straightening unit and the second straightening unit respectively comprise: a first supporting plate, a first clamping assembly and a first driving assembly;

[0012] The first support plate is provided with a first central hole extending therethrough, and the first central hole is used for passing the cable;

[0013] The first clamping assembly includes a plurality of first clamping units, which are arranged at intervals on the first supporting plate outside the first central hole; each of the first clamping units includes a first sliding seat and a roller, and the roller is arranged at one end of the first sliding seat close to the center of the first supporting plate, and is used to clamp the cable and roll along the axial direction of the cable;

[0014] The first driving assembly is disposed on the first supporting disk, and is used for driving the plurality of first clamping units to synchronously move along the radial direction of the first supporting disk toward the center of the first supporting disk to clamp the cable, or to move toward a direction away from the center of the first supporting disk to loosen the cable.

[0015] Further, the number of the first clamping units in each of the straightening units is 4 groups, and the 4 groups of the first clamping units are evenly distributed along the circumference of the first center hole;

[0016] The rotating shaft of the roller is arranged along the tangent direction of the first central hole, and the clamping surface of the roller for clamping the cable is an inwardly concave arc surface.

[0017] Furthermore, the cable terminal head manufacturing device also includes a guide structure, which includes a plurality of fixedly connected sliding rods, and the plurality of sliding rods are respectively inserted into the first straightening unit, the cable stripping device and the second straightening unit, and the first straightening unit, the cable stripping device and the second straightening unit can move back and forth along the sliding rods together.

[0018] Furthermore, the cable terminal head manufacturing device also includes a fixing device, which is fixedly connected to one end of the guide structure, and is used to fix the cable terminal head manufacturing device and the cable.

[0019] Further, the fixing device comprises a second supporting plate, a second clamping assembly and a second driving assembly;

[0020] The second support plate is provided with a second central hole penetrating therethrough, and the second central hole is used for passing the cable;

[0021] The second clamping assembly comprises a plurality of second clamping units, which are arranged at intervals on the second supporting plate outside the second central hole; each of the second clamping units comprises a second sliding seat and a clamping block, and the clamping block is arranged at one end of the second sliding seat close to the center of the second supporting plate, and is used to clamp the cable;

[0022] The second driving assembly is disposed on the second supporting disk, and is used for driving the plurality of second clamping units to synchronously move along the radial direction of the second supporting disk toward the center of the second supporting disk to clamp the cable, or to move toward a direction away from the center of the second supporting disk to loosen the cable.

[0023] According to the technical solution of the present invention, the cable stripping device of the present invention has a cutter installed on its fixed seat, and the cutter can rotate along the inner wall of the mounting seat under the drive of the first drive device, and the second drive device can drive the cutter to extend forward or retract backward. When the cable is inserted into the through hole, the cutter is extended and contacted with the cable by starting the first drive device and the second drive device, and rotates around the axial direction of the cable at the same time, so as to achieve circumferential cutting of the cable. The cable stripping device has a simple structure, greatly reduces the labor intensity of manual labor, makes the cable stripping work easy to complete, and effectively improves the efficiency of the stripping work. The cable terminal head manufacturing device of the present invention includes the above-mentioned cable stripping device, so it also has the above-mentioned beneficial effects. At the same time, it also includes a straightening device, which can simultaneously meet the straightening work requirements before cable stripping, realizes the functional diversity of the cable terminal head manufacturing device, and can achieve the two tasks of straightening and stripping with only one device, reducing the number and time of equipment replacement, and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a 35KV cable after being stripped when manufacturing a terminal head according to an embodiment of the present invention.

[0025] Figure 2 It is a schematic structural diagram of a cable stripping device according to an embodiment of the present invention.

[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of a cable stripping device.

[0027] Figure 4 for Figure 2 Schematic diagram of the main structure of the cable stripping device.

[0028] Figure 5 It is a schematic diagram of the combined structure of the cutter, the second drive assembly and the third drive assembly according to an embodiment of the present invention.

[0029] Figure 6 It is a structural schematic diagram of a cable terminal head manufacturing device according to an embodiment of the present invention.

[0030] Figure 7 It is a structural schematic diagram of a cable terminal head manufacturing device according to another embodiment of the present invention.

[0031] Figure 8 Schematic diagram of the structure of the first straightening unit (or the second straightening unit) according to an embodiment of the present invention.

[0032] Fig. 9 Schematic diagram of the internal structure of the first straightening unit (or the second straightening unit) according to an embodiment of the present invention (with some components removed).

[0033] Fig.10 for Fig. 9 Schematic diagram of the internal structure of the first straightening unit (or the second straightening unit) after further removal of some components.

[0034] Fig.11 Schematic diagram of the structure of the large gear ring according to an embodiment of the present invention.

[0035] Fig.12 It is a schematic diagram of the combined structure of the guide structure and the fixing device according to an embodiment of the present invention.

[0036] Fig.13 Schematic diagram of the internal structure of the fixing device according to an embodiment of the present invention.

[0037] The meanings of the symbols in the accompanying drawings are:

[0038] 1. Cable; 11. Outer sheath; 12. Steel armor; 13. Semiconductive layer; 14. Main insulating layer; 15. Copper conductor; 2. Fixing device; 21. Second support plate; 211. Second center hole; 22. Second clamping unit; 221. Second sliding seat; 222. Clamping block; 23. Second drive assembly; 3. Sliding rod; 4. First straightening unit; 41. First support plate; 411. First center hole; 412. Sleeve; 42. First clamping unit; 421. First sliding seat; 4211. Rack; 4212. Sliding rod Groove; 4213, mounting block; 422, roller; 43, telescopic cylinder; 44, large gear ring; 45, transmission gear; 451, large gear; 452, small gear; 453, intermediate wheel; 46, auxiliary wheel; 5, cable stripping device; 51, mounting seat; 511, chassis; 512, side wall; 513, through hole; 52, motor; 53, driving gear; 54, cutter; 55, inner gear ring; 56, fixed seat; 57, second driving device; 58, third driving device; 6, second straightening unit; 7, first contact switch. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] The embodiment of the present invention takes the production of the terminal head of a 35KV cable as an example to explain the specific application of the cable stripping device 5 and the cable 1 terminal head production device of the embodiment of the present invention. However, the cable stripping device 5 and the cable 1 terminal head production device implemented by the present invention are not only used for the production of the terminal head of a 35KV cable, but can also be used for other similar cables and cables 1 when stripping and straightening are required. When making the terminal head of a 35KV cable, the cable needs to be stripped to Figure 1 In the example structure, the structural layers of the 35KV cable are, from outside to inside, an outer sheath 11, a steel armor 12 (or a copper shielding layer), a semi-conductive layer 13, a main insulating layer 14 and a copper conductor 15. One end of the cable is fixed to the connecting device, and the free end is used to make a terminal head.

[0042] like Figure 2 and Figure 3 As shown, the cable stripping device 5 of the embodiment of the present invention includes: a mounting seat 51, a first driving device, a second driving device 57 and a cutter 54; a through hole 513 is axially provided at the center of the mounting seat 51, and the through hole 513 is used to pass the cable 1; the cutter 54 is rotatably connected to the inner side wall 512 of the mounting seat 51, and the first driving device is used to drive the cutter 54 to rotate circumferentially along the inner side wall 512 of the mounting seat 51; the second driving device 57 is used to drive the cutter 54 to extend and retract radially along the mounting seat 51, and is used to lock and fix the cutter 54 at any extended position.

[0043] Specifically, in this embodiment, the cable stripping device 5 further includes an inner gear ring 55 and a fixed seat 56. The mounting seat 51 is cylindrical in shape, including a chassis 511 and a side wall 512 arranged around the chassis 511. A through hole 513 is provided at the center of the chassis 511. The side wall 512 and the chassis 511 form a receiving cavity, which is used to install the inner gear ring 55 and the fixed seat 56. The inner gear ring 55 and the fixed seat 56 are fixedly connected in the axial direction. The mounting seat 51 is sleeved outside the inner gear ring 55 and the fixed seat 56. The fixed seat 56 is arranged on a side close to the chassis 511, and an axial limiting structure is provided on the mounting seat 51 to make the fixed seat 56 and the inner gear ring 55 located at the preset position of the mounting seat 51 to prevent the inner gear ring 55 and the fixed seat 56 from axial displacement when rotating. The cutter 54 is arranged on the inner side wall of the fixed seat 56. The first driving device includes a motor 52 and a driving gear 53. The motor 52 is arranged on the side wall 512 of the mounting seat 51 (the motor 52 can be directly arranged on the side wall 512 of the mounting seat 51, and can also be fixed on the side wall 512 of the mounting seat through other intermediate parts), and is drivingly connected to the driving gear 53. The driving gear 53 is meshed with the inner gear ring 55. When the motor 52 drives the driving gear 53 to rotate, the driving gear 53 can drive the inner gear ring 55 and the fixed seat 56 to rotate together, so that the cutter 54 arranged on the inner wall of the fixed seat 56 rotates around the circumference of the cable 1.

[0044] The cable stripping device 5 of this embodiment may further include a third driving device 58, which is used to drive the cutter 54 to rotate so as to achieve radial or longitudinal cutting of the cable 1. The third driving device 58 may be disposed on the inner wall of the mounting seat 51, and the third driving device 58 may be configured to rotate at a positive and negative angle of 90° so that the blade of the cutter 54 is arranged parallel to the cutting direction.

[0045] like Figure 4 and Figure 5 As shown, in this embodiment, there are 4 groups of cutters 54, which are evenly distributed along the inner side wall 512 of the fixing seat 56. Each group of cutters 54 is respectively equipped with a second driving device 57 and a third driving device 58. The 4 groups of cutters 54 are driven by the second driving device 57 and the third driving device 58 to move synchronously, that is, to extend and rotate synchronously. The cutter 54 in this embodiment has a four-claw blade.

[0046] The cable stripping device 5 of this embodiment may also include a brake device (not shown), which is used to lock the cutter 54 immediately when the cutter 54 extends outward to contact the next layer of structure adjacent to the outermost layer of the cable 1. The brake device has a similar working principle to the hot dog saw of sawstop, including a controller, and a weak current is passed through the cutter 54. When the cutter 54 contacts different structural layers of the cable 1, the current of the cutter 54 changes due to the structural difference of the adjacent structural layers. When the controller detects the current change on the cutter 54, it controls the second drive device 57 to stop extending and locks the cutter 54 in the extended position.

[0047] The cable stripping device 5 of this embodiment can select a cutting method according to actual conditions, such as circular cutting first and then longitudinal cutting. When circular cutting or longitudinal cutting, the cutter 54 can be extended to the position at once or slowly fed to the position. Extending to the position at once means that when cutting, the cutter 54 does not rotate first, and the second drive device 57 drives the cutter 54 to extend and penetrate into the outermost structural layer of the cable 1 until the tip of the blade contacts the next structural layer, then stops extending and starts cutting. Slowly feeding means that the cutter 54 slowly extends forward while rotating, and cuts off the structural layer little by little.

[0048] like Figure 6 and Figure 7 As shown, since the cable 1 is mostly wound on the cable wheel, the cable 1 will have a certain curvature, and the end of the cable 1 needs to be straightened before making the terminal head of the cable 1. In order to increase the versatility of the equipment, the cable terminal head making device of this embodiment can also include a straightening device, a guide structure and a fixing device 2.

[0049] The straightening device includes a first straightening unit 4 and a second straightening unit 6. The first straightening unit 4 and the second straightening unit 6 are respectively arranged on both sides of the axial direction of the cable stripping device 5, and the two straightening units are fixedly connected to the stripping device and can move synchronously. The first straightening unit 4 and the second straightening unit 6 respectively include: a first support plate 41, a first clamping assembly and a first driving assembly.

[0050] like Figures 8 to 10 As shown, the first support plate 41 is provided with a first central hole 411 penetrating therethrough, and the first central hole 411 is used for passing the cable 1 therethrough.

[0051] The first clamping assembly includes a plurality of first clamping units 42, and the plurality of first clamping units 42 are arranged at intervals on the first support plate 41 outside the first center hole 411; each first clamping unit 42 respectively includes a first sliding seat 421 and a roller 422, and the roller 422 is arranged at one end of the first sliding seat 421 close to the center of the first support plate 41, and is used to clamp the cable 1 and roll along the axial direction of the cable 1.

[0052] The first driving assembly is disposed on the first supporting disk 41, and is used to drive the plurality of first clamping units 42 to synchronously move along the radial direction of the first supporting disk 41 toward the center of the first supporting disk 41 to clamp the cable 1, or to move toward a direction away from the center of the first supporting disk 41 to loosen the cable 1.

[0053] Specifically, in this embodiment, the first clamping assembly in each straightening unit (first straightening unit 4 or second straightening unit 6) includes four groups of first clamping units 42, and the four groups of first clamping units 42 are evenly distributed in a cross shape along the circumference of the first center hole 411 of the respective first support disk 41. When the four rollers 422 all move toward the center of the first support disk 41, they are used to clamp the cable 1, and when the four rollers 422 all move away from the outer edge of the first support disk 41, they are used to loosen the cable 1. In other embodiments, the specific number of the first clamping units 42 is not limited.

[0054] like Fig. 9 and Fig.10As shown, the first driving assembly of this embodiment includes a telescopic cylinder 43 and a transmission gear 45 drivingly connected to the telescopic cylinder 43; the first sliding seat 421 is drivingly connected to the transmission gear 45. The transmission gear 45 can be a single gear structure or a group of multiple gear structures. The telescopic cylinder 43 can be, for example, an electric cylinder or a hydraulic cylinder, and the specific type is not limited. A section of gear teeth is respectively provided on the side wall of each first sliding seat 421 to form a rack 4211, and the rack 4211 is used to mesh with the transmission gear 45. A slide groove 4212 is provided under the first sliding seat 421, and the rack 4211 can reciprocate in the slide groove 4212. The rack 4211 is located at the lower part of the first sliding seat 421, and a mounting block 4213 is provided on the upper part of the first sliding seat 421. The mounting block 4213 is used to install the roller 422, and the mounting block 4213 and the rack 4211 can be formed in one piece or fixedly connected up and down.

[0055] like Fig.10 As shown, in one embodiment, a sleeve 412 is provided on the side of the first support plate 41 facing away from the first clamping assembly, and the sleeve 412 is arranged around the first center hole 411. The first drive assembly is divided into two groups, each group of first drive assemblies is used to simultaneously drive two first clamping units 42 arranged opposite to each other (two first clamping units 42 on the same straight line), and each group of first drive assemblies includes a telescopic cylinder 43, a large gear ring 44 and two groups of transmission gears 45. Fig.10 As shown, the two large gear rings 44 of the two sets of first drive assemblies are respectively sleeved on the sleeve 412 and can rotate around the sleeve 412 respectively. Fig.11 As shown, each large gear ring 44 is provided with a section of gear teeth on its two radially opposite outer side walls, and each section of gear teeth is respectively provided with a first clamping unit 42 and a group of transmission gears 45. Each group of transmission gears 45 includes a large gear 451, a small gear 452 and an intermediate gear 453. The intermediate gear 453 is meshed with the gear teeth of the large gear 451 and the large gear ring 44 respectively; the small gear 452 and the intermediate gear 453 are coaxially arranged and rotate synchronously, and the small gear 452 is meshed with the rack 4211, and any one of the large gears 451 in the two groups of transmission gears 45 is drivingly connected to the telescopic cylinder 43 (the large gear 451 in the other group of transmission gears 45 does not work and may not be provided).

[0056] like Fig. 9 and Fig.10As shown, in order to ensure the smooth movement of the first sliding seat 421, gear teeth can be respectively arranged on the two opposite side walls of the first sliding seat 421 to form a rack 4211 with gear teeth on both sides, one side of the gear teeth meshes with the pinion 452, and the other side is provided with an auxiliary wheel 46, the auxiliary wheel 46 meshes with the rack 4211, and the auxiliary wheel 46 is arranged on the first support plate 41 to assist the smooth movement of the first sliding seat 421. The end of the piston rod of the telescopic cylinder 43 is connected to one of the large gears 451, and the rotation direction and rotation distance of the large gear 451 are controlled by extending or retracting the piston rod. While the telescopic cylinder 43 plays a driving role, it also has a certain limiting ability. The maximum extension distance of its piston rod can limit the maximum rotation angle of the large gear 451, so that the large gear 451 will not rotate without limit, but only rotate within a limited range, thereby improving the stability of the overall device. The rotating shaft of the roller 422 of this embodiment is arranged along the tangent direction of the first center hole 411, and the clamping surface of the roller 422 for clamping the cable 1 is an inwardly concave arc surface. The roller 422 in this embodiment adopts a roller 422 with a certain width along the extension direction of the rotating shaft, and the radial dimension of the roller 422 gradually decreases from both sides of the rotating shaft to the center, so that the surface in contact with the cable 1 is an arc surface. Specifically, the curvature of the arc surface can be matched with the outer diameter of the cable 1 according to the diameter of the cable 1, so that the roller 422 and the cable 1 can be more closely fitted. The roller 422 and the first sliding seat 421 can be set to be detachably connected. When the cable 1 has multiple specifications, different rollers 422 can be equipped according to the diameter of each cable 1, so that the curvature of the arc surface matches the outer diameter of the cable 1 respectively.

[0057] like Figure 6 As shown, the first clamping assembly of the second straightening unit 6 is arranged at one end away from the first straightening unit 4. Similarly, the first clamping assembly of the first straightening unit 4 is also arranged at one end away from the second straightening unit 6. The two are arranged in directions away from each other, so that the distance between the rollers 422 of the two straightening units can be maximized, thereby ensuring the straightening effect while making the cable straightening device have a smaller overall size.

[0058] like Fig.12 As shown, the guide structure of this embodiment includes a plurality of slide bars 3 that are fixedly connected, and the plurality of slide bars 3 are respectively inserted into the first straightening unit 4, the cable stripping device 5, and the second straightening unit 6, and the first straightening unit 4, the cable stripping device 5, and the second straightening unit 6 can move back and forth together along the slide bar 3. The slide bar 3 can be a simple smooth rod 3 structure, which is only used for guidance, or the slide bar 3 also has a driving function (such as a linear guide rail), which can drive the first straightening unit 4, the cable stripping device 5, and the second straightening unit 6 inserted thereon to move back and forth synchronously along the length direction thereof.

[0059] like Fig.12 and 13 As shown, the fixing device 2 of this embodiment is fixedly connected to one end of the guide structure, and the fixing device 2 is used to fix the cable terminal head manufacturing device and the cable 1. Specifically, the fixing device 2 includes a second support plate 21, a second clamping assembly and a second driving assembly 23.

[0060] The second support plate 21 is provided with a penetrating second center hole 211, and the second center hole 211 is used for passing the cable 1. The first center hole 411 and the second center hole 211 are coaxially arranged.

[0061] The second clamping assembly includes a plurality of second clamping units 22, which are spaced apart on the second support plate 21 outside the second center hole 211; each second clamping unit 22 includes a second sliding seat 221 and a clamping block 222, and the clamping block 222 is arranged at one end of the second sliding seat 221 close to the center of the second support plate 21, for clamping the cable 1.

[0062] The second driving assembly 23 is disposed on the second supporting disk 21, and is used to drive the plurality of second clamping units 22 to synchronously move along the radial direction of the second supporting disk 21 toward the center of the second supporting disk 21 to clamp the cable 1, or to move toward a direction away from the center of the second supporting disk 21 to loosen the cable 1.

[0063] Specifically, in this embodiment, the structure of the fixing device 2 is substantially the same as that of the straightening unit, and will not be described in detail here. The only difference is that a clamping block 222 is provided on the second clamping unit 22 of the fixing device 2, instead of a roller 422. The clamping block 222 only has a clamping function, and cannot roll on the cable 1 like the roller 422. The roller 422 rolls to achieve the straightening function, while the clamping block 222 clamps to achieve the fixing function. The contact surface between the clamping block 222 and the cable 1 can also be designed as an arc surface or a V-shaped surface that matches the cable 1 to better achieve the clamping function.

[0064] In order to make the terminal head manufacturing device of the embodiment of the present application more automated, a first contact switch 7 may be provided at one end of the slide bar 3 close to the fixing device 2, and a second contact switch (not shown) may be provided at the other end of the slide bar 3. When the first straightening unit 4 (the straightening unit close to the fixing device 2) contacts the first contact switch, the controller controls the rollers 422 of the two straightening units to clamp the cable 1; when the second straightening unit 6 (the straightening unit away from the fixing device 2) contacts the second contact switch, the controller controls the rollers 422 of the two straightening units to release the cable 1, and controls the cutter 54 to retract (away from the cable 1).

[0065] The working principle of the cable 1 terminal head making device of this embodiment (the cable 1 can be straightened first and then the outer skin can be stripped, or the straightening and stripping can be performed simultaneously, and the following description is made in the manner of straightening first and then stripping) is as follows: the cable 1 is inserted into the cable 1 terminal head making device, and the fixing device 2 is driven (manually driven, or automatically driven by setting a power device, and the following driving methods are the same) to the appropriate position of the cable 1, and then the clamping block 222 is moved toward the center until the cable 1 is clamped, completing the fixing work of the device. Drive the first straightening unit 4 until it contacts the first contact switch, and the controller controls the rollers 422 of the two straightening units to move toward the center to clamp the cable 1; then drive the second straightening unit 6 (and simultaneously drive the first straightening unit 4) to move toward the second contact switch (the distance between the first contact switch and the second contact switch is a preset distance, which matches the stripping length of the cable 1, and the outer end of the slide rod 3 is longer than the end of the cable 1). When the second straightening unit 6 contacts the second contact switch, the controller controls the rollers 422 of the two straightening units to open outward to release the cable 1, thereby completing the straightening work (while the straightening work is in progress, the cutter 54 is always in a retracted state, and can be configured manually or automatically).

[0066] When stripping, first perform circular cutting, pull the first straightening unit 4 back to contact with the first contact switch, control the cutter 54 to extend toward the middle (the blade is in the same direction as the cutting direction), extend and rotate at the same time, when the blade contacts the next structural layer of the cutting layer of the cable 1, the brake device controls the cutter 54 to stop extending forward, and locks it at the current extension length position, and continues to rotate the cutter 54 to complete the circular cutting; then perform longitudinal cutting, first control the cutter 54 to retract, and then rotate the cutter 54 90° to keep the blade consistent with the direction to be cut, and control the cutter 54 to extend toward the center until the blade and the cutting layer of the cable 1 are in contact. When the next structural layer contacts, the brake device controls the cutter 54 to stop extending forward and locks it at the current extension length position, controls the rollers 422 of the two straightening units to extend toward the middle to clamp the cable 1, and then drives the second straightening device (and at the same time drives the cable stripping device 5) to move toward the second contact switch (at this time, the cutter 54 does not rotate, but only translates along the axis of the cable 1). When the second straightening device contacts the second contact switch, the rollers 422 of the two straightening units are controlled to open outward to loosen the cable 1. At this time, the outer skin of the cable 1 is cut into four halves and can fall off by itself, completing the stripping work.

[0067] Before the ring cutting, in order to facilitate accurate operation, the cable 1 can be marked according to the size requirements to control the size position of the ring cutting. Alternatively, the position of the ring cutting can be measured and determined by setting a size scale on the slide bar 3, so as to control the length of the cable stripping during operation.

[0068] When peeling off the next structural layer, just repeat the above steps.

[0069] The cable stripping device and the cable terminal head manufacturing device of the embodiment of the present invention can sequentially cut and strip the outer sheath, steel armor (or copper shielding layer), semi-conductive layer and main insulation layer of the 35KV cable, and can simultaneously realize the straightening and stripping work of the cable head. It can realize the circular cutting of the cable sheath, the cutting depth is adjustable, the cutting pressure is controllable, and it will not damage the adjacent structural layers, which reduces manual operation, improves work efficiency and cutting accuracy, and is conducive to improving the quality of terminal head manufacturing. In this embodiment, the number of sliding rods is 4, and the sliding rods can guide the moving straightening unit and stripping device to prevent them from deviating from the center of the cable and improve cutting accuracy.

[0070] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cable stripping device, characterized in that: include: A mounting seat, a first drive device, a second drive device and a cutter; A through hole is axially provided at the center of the mounting seat, and the through hole is used for passing a cable; the cutter is rotatably connected to the inner side wall of the mounting seat, and the first driving device is used to drive the cutter to rotate circumferentially along the inner side wall of the mounting seat; the second driving device is used to drive the cutter to extend and retract radially along the mounting seat, and to lock and fix the cutter at any extended position.

2. The cable stripping device according to claim 1, characterized in that: It also includes an inner gear ring and a fixed seat that are fixedly connected, the mounting seat is sleeved outside the inner gear ring and the fixed seat; the cutter is arranged on the inner side wall of the fixed seat; the first driving device includes a motor and a driving gear, the motor and the driving gear are drivingly connected, and the driving gear is meshed with the inner gear ring; The first driving device is used to drive the inner gear ring to rotate circumferentially along the inner wall of the mounting seat, and at the same time drive the cutter to rotate together.

3. The cable stripping device according to claim 1, characterized in that: It also includes a brake device, which is used to lock and fix the cutter immediately when the cutter extends outward to contact the next layer structure adjacent to the outermost layer of the cable.

4. The cable stripping device according to claim 1, characterized in that: The invention also comprises a third driving device, wherein the third driving device is used for driving the cutter to rotate so as to achieve radial or longitudinal cutting of the cable.

5. The cable stripping device according to claim 4, characterized in that: There are 4 groups of cutters in total, and the 4 groups of cutters are evenly distributed along the inner wall of the fixed base. Each group of cutters is respectively equipped with a second driving device and a third driving device, and the 4 groups of cutters move synchronously under the drive of the second driving device and the third driving device.

6. A cable terminal head manufacturing device, characterized in that: A cable stripping device comprising the cable stripping device as claimed in any one of claims 1 to 5, further comprising a straightening device; The straightening device comprises a first straightening unit and a second straightening unit, wherein the first straightening unit and the second straightening unit are respectively arranged on both sides of the axial direction of the cable stripping device; The first straightening unit and the second straightening unit respectively include: a first supporting plate, a first clamping assembly and a first driving assembly; The first support plate is provided with a first central hole extending therethrough, and the first central hole is used for passing the cable; The first clamping assembly includes a plurality of first clamping units, which are arranged at intervals on the first supporting plate outside the first central hole; each of the first clamping units includes a first sliding seat and a roller, and the roller is arranged at one end of the first sliding seat close to the center of the first supporting plate, and is used to clamp the cable and roll along the axial direction of the cable; The first driving assembly is disposed on the first supporting disk, and is used for driving the plurality of first clamping units to synchronously move along the radial direction of the first supporting disk toward the center of the first supporting disk to clamp the cable, or to move toward a direction away from the center of the first supporting disk to loosen the cable.

7. The cable terminal head manufacturing device according to claim 6, characterized in that: The number of the first clamping units in each of the straightening units is 4 groups, and the 4 groups of the first clamping units are evenly distributed along the circumference of the first center hole; The rotating shaft of the roller is arranged along the tangent direction of the first central hole, and the clamping surface of the roller for clamping the cable is an inwardly concave arc surface.

8. The cable terminal head manufacturing device according to claim 6, characterized in that: It also includes a guiding structure, which includes a plurality of sliding rods that are fixedly connected, and the plurality of sliding rods are respectively inserted into the first straightening unit, the cable stripping device and the second straightening unit, and the first straightening unit, the cable stripping device and the second straightening unit can move back and forth along the sliding rods together.

9. The cable terminal head manufacturing device according to claim 8, characterized in that: It also includes a fixing device, which is fixedly connected to one end of the guide structure and is used to fix the cable terminal head making device and the cable.

10. The cable terminal head manufacturing device according to claim 9, characterized in that: The fixing device comprises a second supporting plate, a second clamping assembly and a second driving assembly; The second support plate is provided with a second central hole penetrating therethrough, and the second central hole is used for passing the cable; The second clamping assembly comprises a plurality of second clamping units, which are arranged at intervals on the second supporting plate outside the second central hole; each of the second clamping units comprises a second sliding seat and a clamping block, and the clamping block is arranged at one end of the second sliding seat close to the center of the second supporting plate, and is used to clamp the cable; The second driving assembly is disposed on the second supporting disk, and is used for driving the plurality of second clamping units to synchronously move along the radial direction of the second supporting disk toward the center of the second supporting disk to clamp the cable, or to move toward a direction away from the center of the second supporting disk to loosen the cable.

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