Connector cable automatic stripping device

Abstract

This invention discloses an automatic wire stripping device for connector cables, including a drive shaft, a mounting base and a cutting power sleeve fitted on the drive shaft; the cutting power sleeve includes a cutting power part and a sleeve part, the cutting power part including a conical cutting power surface; the mounting base has at least two swing arms circumferentially arranged, the swing arms being connected to the mounting base via a first connecting shaft; the front end of the swing arm has a radial slot, the radial slot containing a cutting blade and a positioning piece, and the rear end of the swing arm has a roller, the roller abutting against the cutting power surface; the wire stripping device has a sliding component, an abutting piece and a positioning arm corresponding to the positioning piece, the sliding component being connected to the mounting base via a first elastic element; the abutting piece is connected to the sliding component, the front end of the abutting piece including an abutting slope; the positioning arm is connected to the mounting base via the first connecting shaft, the front end of the positioning arm connecting to the positioning piece, and the rear end of the positioning arm abutting against the abutting slope. This invention can effectively clamp and position the connector cable through the positioning piece, ensuring good wire stripping effect.

Description

Technical Field

[0001] This invention relates to a cable connector manufacturing apparatus, and more particularly to an automatic stripping device for connector cables. Background Technology

[0002] With the widespread use of electronic devices, cable connectors and other cable-related products used in electronic devices are also becoming increasingly widely used. These cable connectors are manufactured by soldering the connector cable and the corresponding terminals on the connector. Before soldering, the insulation layer of the connector cable head needs to be peeled off to expose the internal conductive core.

[0003] However, the positioning plates of the wire stripper head in the existing technology are not stable in positioning the connector cable, which can easily cause the connector cable to slide and shift, resulting in inaccurate positioning and affecting the stripping effect.

[0004] In addition, the concentricity of the cutter of a two-axis or three-axis wire stripper is an important factor affecting the wire stripping effect. The concentricity of the cutter needs to be ensured by the machining accuracy of each part, which places very high demands on the machining process of the parts. Therefore, the processing and maintenance costs of wire strippers are very high. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic stripping device for connector cables, so as to solve the problem in the prior art that the positioning plate is unstable in positioning the connector cable, which easily leads to the connector cable sliding and displacement, resulting in inaccurate positioning and affecting the stripping effect.

[0006] To achieve the above objectives, the present invention provides an automatic wire stripping device for connector cables, comprising a drive shaft, on which mounting seats and a cutting power sleeve are spaced apart; the mounting seats are fixedly connected to the front end of the drive shaft, and the cutting power sleeve is slidably sleeved on the drive shaft to move along the drive shaft under external force; the cutting power sleeve includes a cutting power part and a sleeve part connected to each other, the cutting power part including a conical cutting power surface, and the sleeve part located behind the cutting power part; the mounting seat is uniformly provided with at least two swing arms in the circumferential direction, and the swing arms are rotatably connected to the mounting seat through a first connecting shaft; each swing arm has a radial slot at its front end, and a cutter and a positioning plate are inserted into each radial slot, the cutter being located inside the positioning plate, and the positioning plate being slidably connected in the radial slot; the positioning plate is located inside the positioning plate. The positioning plate has an active end for crimping connector cables and a non-active end opposite to the active end. A roller is provided at the rear end of the swing arm, and the roller remains in contact with the cutting blade's power surface. The automatic connector cable stripping device also includes a sliding assembly, an abutment piece, and a positioning arm corresponding to the positioning plate. The sliding assembly is slidably connected to the sleeve portion and connected to the mounting base via a first elastic element. The first elastic element applies a pulling force to bring the sliding assembly closer to the mounting base. The abutment piece is connected to the sliding assembly, and its front end includes an abutment slope located inside the cutting blade's power surface. The positioning arm passes through the swing arm and is rotatably connected to the mounting base via a first connecting shaft. The front end of the positioning arm is connected to the non-active end of the positioning plate, and the rear end of the positioning arm remains in contact with the abutment slope.

[0007] Preferably, the roller is connected to the swing arm via a second connecting shaft. The second connecting shaft includes a first shaft segment, a second shaft segment, and a third shaft segment connected in sequence. The first shaft segment and the third shaft segment are coaxially arranged and both pass through the swing arm. The central axis of the second shaft segment is parallel to the central axis of the first shaft segment so that the second shaft segment is eccentrically arranged. The second shaft segment passes through the roller.

[0008] Preferably, the positioning arm is Z-shaped and includes a first connecting segment, a middle segment, and a second connecting segment connected in sequence. The end of the first connecting segment away from the middle segment abuts against the abutting inclined surface. The end of the second connecting segment away from the middle segment is connected to the non-functional end of the positioning piece. The swing arm has a first groove corresponding to the first connecting segment, a through groove corresponding to the middle segment, and a second groove corresponding to the second connecting segment so that the positioning arm passes through the swing arm.

[0009] Preferably, the first connecting shaft includes a fourth shaft segment, a fifth shaft segment, and a sixth shaft segment connected in sequence. The fourth shaft segment and the sixth shaft segment are coaxially arranged and both pass through the mounting base and the swing arm. The central axis of the fifth shaft segment is parallel to the central axis of the fourth shaft segment so that the fifth shaft segment is eccentrically arranged. The fifth shaft segment passes through the middle section.

[0010] Preferably, the swing arm has a first surface facing the drive shaft, a second surface opposite to the first surface, and two side surfaces connecting the first surface and the second surface. Connecting posts are respectively provided on the two side surfaces. The connecting posts are located on the side of the mounting base facing the cutter power sleeve. The mounting base has a snap-fit ​​protrusion corresponding to the connecting post. The connecting post is connected to the snap-fit ​​protrusion through a second elastic element. The second elastic element is used to apply a pulling force to bring the connecting post closer to the mounting base so that the roller remains in contact with the cutter power surface.

[0011] Preferably, the sliding assembly includes a sliding seat slidably sleeved on the sleeve portion and a connecting piece. The connecting piece is disposed on the side of the sliding seat away from the mounting base and is fixedly connected to the sliding seat. The connecting piece has a snap-fit ​​portion protruding outward. One end of the first elastic element is connected to the snap-fit ​​portion, and the other end of the first elastic element is connected to the mounting base.

[0012] Preferably, there are three swing arms and three corresponding positioning arms, with the three positioning arms respectively passing through the three swing arms.

[0013] Preferably, the bottom end of the cutter has a cutting edge, the side of the cutter has a first clearance surface, the angle between the cutting edge and the first clearance surface is 120 degrees, the bottom surface of the positioning piece is a positioning surface, the side of the positioning piece has a second clearance surface, and the angle between the positioning surface and the second clearance surface is 120 degrees.

[0014] Preferably, the mounting base has a fourth positioning hole corresponding to the transmission shaft, and a fourth positioning pin passes through the fourth positioning hole. The fourth positioning pin abuts against the transmission shaft so that the mounting base is fixedly connected to the transmission shaft.

[0015] Preferably, the transmission shaft is a hollow transmission shaft, and a push rod is inserted inside the transmission shaft. The transmission shaft has a groove corresponding to the cutter power unit. A connecting part is connected to the cutter power unit. The connecting part passes through the groove and is connected to the push rod. The push rod drives the cutter power sleeve to move along the transmission shaft.

[0016] Compared with the prior art, the present invention provides a sliding component, abutment piece, positioning arm and first elastic element. The sliding component is sleeved on the sleeve and connected to the mounting base through the first elastic element. The positioning arm is inserted into the swing arm. This allows the positioning piece at the front end of the positioning arm to effectively clamp the positioning connector cable, effectively preventing the connector cable from sliding and shifting, and ensuring good wire stripping effect. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0018] Figure 2 This is a second perspective view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0019] Figure 3 This is a front view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0020] Figure 4 This is a perspective view of the mounting base in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0021] Figure 5 This is a perspective view of the cutting power sleeve in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0022] Figure 6 This is a perspective view of the swing arm from the first angle in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0023] Figure 7 This is a perspective view of the swing arm from a second angle in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0024] Figure 8 This is a third-view perspective view of the swing arm in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0025] Figure 9 This is a perspective view of the first connecting shaft in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0026] Figure 10 This is a front view of the first connecting shaft in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0027] Figure 11 This is a perspective view of the cutter in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0028] Figure 12 This is a perspective view of the positioning plate in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0029] Figure 13This is a perspective view of the sliding seat in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0030] Figure 14 This is a perspective view of the contact piece in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0031] Figure 15 This is a perspective view of the positioning arm in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0032] Figure 16 This is a front view of the positioning arm in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0033] Figure 17 This is a partial view of an embodiment of the automatic wire stripping device for connector cables of the present invention, showing the connection relationship of the transmission shaft, sliding component, abutment piece, positioning arm, positioning piece, mounting base, and first connecting shaft.

[0034] Figure 18 This is a perspective view of the second connecting shaft in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0035] Figure 19 This is a first cross-sectional view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0036] Figure 20 This is a second cross-sectional view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0037] Figure 21 This is a third cross-sectional view of an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0038] Figure 22 This is a perspective view of the verification bar in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0039] Figure 23 This is a schematic diagram of the concentricity verification of the cutter in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0040] Figure 24 This is a schematic diagram of the concentricity verification of the positioning piece in an embodiment of the automatic wire stripping device for connector cables of the present invention.

[0041] Explanation of reference numerals in the attached diagram: 100. Automatic wire stripping device for connector cables; 1. Drive shaft; 110. Slide groove; 2. Mounting base; 210. First mounting surface; 220. Second mounting surface; 230. Mounting groove; 2401. Fourth mating hole; 2402. Fifth mating hole; 250. Second positioning hole; 260. Third positioning hole; 270. Fourth positioning hole; 3. Cutter power sleeve; 31. Cutter power unit; 311. Front bottom surface; 312. Rear bottom surface; 313. Cutter power surface; 314. Second connecting groove; 32. Sleeve part; 4. Swing arm 41. Radial slot; 411. First sub-slot; 412. Second sub-slot; 42. Slot hole; 421. First part; 422. Second part; 423. Threaded hole; 43. First mating arm; 431. First mating hole; 432. First positioning hole; 44. Second mating arm; 441. Second mating hole; 45. First groove; 46. Through groove; 47. Second groove; 481. Sixth mating hole; 482. Seventh mating hole; 5. First connecting shaft; 51. Fourth shaft segment; 511. First recessed part; 52. Fifth shaft segment; 53, Sixth shaft segment; 531, Second recess; 6, Roller; 7, Cutter; 71, Clearance notch; 72, Cutting edge; 73, First clearance surface; 8, Positioning piece; 81, Connecting interface; 82, Positioning surface; 83, Second clearance surface; 9, Sliding assembly; 91, Sliding seat; 911, First connecting groove; 92, Connecting piece; 921, Snap-fit ​​part; 10, Abutting piece; 101, Abutting slope; 11, Positioning arm; 111, First connecting segment; 1111, Bending part; 112, Middle segment; 1121, First... Eight mating holes; 113, second connecting section; 12, first elastic element; 13, second connecting shaft; 131, first shaft section; 132, second shaft section; 133, third shaft section; 14, connecting post; 15, second elastic element; 16, snap-fit ​​protrusion; 17, mating post; 18, third elastic element; 19, locking screw; 20, push rod; 21, connecting part; 22, nut seat; 23, synchronous pulley; 24, calibration bar; 241, positioning section; 2411, annular recess; 242, calibration section; 243, connecting middle section. Detailed Implementation

[0042] To illustrate the technical content, structural features, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0043] like Figures 1 to 22As shown, this embodiment of the invention provides an automatic wire stripping device 100 for connector cables, including a drive shaft 1. A mounting base 2 and a cutting power sleeve 3 are spaced apart on the drive shaft 1. The mounting base 2 is fixedly connected to the front end of the drive shaft 1, and the cutting power sleeve 3 is slidably sleeved on the drive shaft 1 to move along the drive shaft 1 under external force. The cutting power sleeve 3 includes a cutting power part 31 and a sleeve part 32 connected to each other. The cutting power part 31 includes a conical cutting power surface 313, and the sleeve part 32 is located behind the cutting power part 31. The mounting base 2 is uniformly provided with at least two swing arms 4 along its circumference, and the at least two swing arms 4 are rotatably connected to the mounting base 2 via a first connecting shaft 5. Each swing arm 4 has a radial slot 41 at its front end, and a cutter 7 and a positioning piece 8 are inserted into each radial slot 41. The cutter 7 is located inside the positioning piece 8, and the positioning piece 8 is slidably connected within the radial slot 41. The positioning plate 8 has an active end for crimping the connector cable and a non-active end opposite to the active end. A roller 6 is provided at the rear end of the swing arm 4, and the roller 6 remains in contact with the cutting blade power surface 313. The automatic connector cable stripping device 100 also includes a sliding assembly 9, an abutment piece 10, and a positioning arm 11 corresponding to the positioning plate 8. The sliding assembly 9 is slidably connected to the sleeve portion 32, and is connected to the mounting base 2 via a first elastic element 12. The first elastic element 12 applies a pulling force to bring the sliding assembly 9 closer to the mounting base 2. The abutment piece 10 is connected to the sliding assembly 9, and its front end includes an abutment slope 101 located inside the cutting blade power surface 313. The positioning arm 11 passes through the swing arm 4 and is rotatably connected to the mounting base 2 via a first connecting shaft 5. The front end of the positioning arm 11 is connected to the non-active end of the positioning plate 8, and the rear end of the positioning arm 11 remains in contact with the abutment slope 101. Specifically, as shown... Figures 1 to 2 as well as Figure 5 As shown, the cutter power sleeve 3 is located on the rear side of the mounting base 2. The cutter power unit 31 has a frustum structure and includes a front bottom surface 311, a rear bottom surface 312, and a cutter power surface 313 connecting the front bottom surface 311 and the rear bottom surface 312. The size of the front bottom surface 311 is smaller than the size of the rear bottom surface 312, and the sleeve part 32 is connected to the middle of the rear bottom surface 312; Figures 1 to 4As shown, the mounting base 2 has a disc-like structure, and at least two mounting slots 230 are evenly arranged along the circumference of the mounting base 2, so that at least two swing arms 4 are respectively installed in at least two mounting slots 230 and connected through the first connecting shaft 5; the extension direction of the radial slot 41 is perpendicular to the axial direction of the transmission shaft 1, so that the cutter 7 and the positioning piece 8 inserted therein are arranged perpendicular to the axial direction of the transmission shaft 1. The radial slot 41 includes a first sub-slot 411 and a second sub-slot 412. The first sub-slot 411 corresponds to the structure of the cutter 7, and the second sub-slot 412 corresponds to the structure of the positioning piece 8. The swing arms 4 extend along the circumference of the disc. The arm also has a slot 42 extending along its length from the radial slot 41 into the interior of the swing arm 4 to form a first part 421 and a second part 422 at the front end of the swing arm 4. The first part 421 can have a certain degree of deformation to facilitate the installation of the cutter 7 and the positioning piece 8. The swing arm 4 also has a threaded hole 423 that passes through the first part 421 and the second part 422. After the cutter 7 and the positioning piece 8 are installed, the first part 421 and the second part 422 can be locked by threading the locking screw 19 into the threaded hole 423 to fix the cutter 7. The positioning piece 8 can still slide along the radial slot 41 under the action of external force. The active end of the positioning piece 8 is used to crimp the connector cable, and the non-active end of the positioning piece 8 is the end opposite to the active end of the positioning piece 8. The active end of the cutter 7 is used to cut the connector cable, and the non-active end of the cutter 7 is the end opposite to the active end of the cutter 7. The active ends of the positioning piece 8 and the active ends of the cutter 7 are both located outside the radial slot 41. The abutting piece 10 extends into the interior of the cutter power unit 31, and the abutting bevel 101 protrudes from the cutter power unit 31.The first elastic element 12 can be a tension spring. In the initial state of use, the automatic connector cable stripping device 100 has the sliding assembly 9 abutting against the rear bottom surface 312 of the cutter power unit 31. When the cutter power sleeve 3 moves forward, the cutter power surface 313 pushes the rear end of the swing arm 4 away from the central axis of the transmission shaft 1, causing the front end of the swing arm 4 to move towards the central axis of the transmission shaft 1. That is, the front ends of all the swing arms 4 move closer to each other, thereby causing all the cutters 7 to close and cut the connector cable. When the cutter power sleeve 3 moves forward, the sliding assembly 9, without the obstruction of the cutter power unit 31, also moves forward under the pull of the first elastic element 12, causing the abutment piece 10 to move forward and push the rear end of the positioning arm 11 away from the central axis of the transmission shaft 1, thus... This causes the front ends of the positioning arms 11 to move toward the central axis of the transmission shaft 1, that is, the front ends of all the positioning arms 11 move closer to each other, thereby causing all the positioning plates 8 to close and clamp and fix the connector cable. When the positioning plates 8 contact the connector cable, the cutter 7 can continue to move toward the central axis of the connector cable, while the positioning plates 8 remain stationary. This is because when at least two positioning plates 8 interact with the connector cable, the force exerted on the positioning arms 11 causes the sliding assembly 9 to overcome the tension of the first elastic element 12 and move backward a certain distance. When the cutter retracts, the cutter power unit 31 moves backward under the action of external force, and the cutter 7 moves away from the connector cable. When the cutter power unit 31 contacts the sliding assembly 9, the cutter power unit 31 pushes the sliding assembly 9 backward, thereby causing the positioning plates 8 to move away from the connector cable together. In this embodiment of the invention, the transmission shaft 1 is provided with a synchronous wheel 23, which is located on the rear side of the cutter power sleeve 3. The synchronous wheel 23 can be driven by a motor to rotate, thereby driving the transmission shaft 1 to rotate, thereby driving all the cutters 7 to perform rotary cutting.

[0044] In this embodiment of the invention, a sliding component 9, abutment piece 10, positioning arm 11, and first elastic element 12 are provided. The sliding component 9 is sleeved on the sleeve portion 32 and connected to the mounting base 2 through the first elastic element 12. The positioning arm 11 passes through the swing arm 4 and abuts against the abutment inclined surface 101. This allows the positioning piece 8 at the front end of the positioning arm 11 to effectively clamp the positioning connector cable and ensure a good wire stripping effect.

[0045] In this embodiment of the invention, the roller 6 is connected to the swing arm 4 via a second connecting shaft 13. The second connecting shaft 13 includes a first shaft segment 131, a second shaft segment 132, and a third shaft segment 133 connected in sequence. The first shaft segment 131 and the third shaft segment 133 are coaxially arranged and both pass through the swing arm 4. The central axis of the second shaft segment 132 is parallel to the central axis of the first shaft segment 131, so that the second shaft segment 132 is eccentrically arranged. The second shaft segment 132 passes through the roller 6. Specifically, as shown... Figures 6 to 8 , Figure 18 as well as Figure 19 As shown, the first shaft segment 131, the second shaft segment 132, and the third shaft segment 133 are all cylindrical structures. The rear end of the swing arm 4 is provided with a first mating protrusion 43 and a second mating protrusion 44 arranged opposite each other. A roller 6 is disposed between the first mating protrusion 43 and the second mating protrusion 44. The first mating protrusion 43 has a first mating hole 431 corresponding to the first shaft segment 131, the second mating protrusion 44 has a second mating hole 441 corresponding to the third shaft segment 133, and the roller 6 has a third mating hole corresponding to the second shaft segment 132. The first shaft segment 131 passes through the first mating hole 431, the second shaft segment 132 passes through the third mating hole, and the third shaft segment 133 passes through the second mating hole 441. The diameter of the first shaft segment 131 is larger than the diameter of the second shaft segment 132, and the diameter of the second shaft segment 132 is larger than the diameter of the third shaft segment 133. The projection position of the second shaft segment 132 in the axial direction is... The second connecting shaft 13 is located inside the projection of the first shaft segment 131 in the axial direction, and the projection of the third shaft segment 133 in the axial direction is located inside the projection of the second shaft segment 132 in the axial direction. This makes it easy to install and position the second connecting shaft 13. In addition, a slot can be provided at the end of the first shaft segment 131, and the second shaft segment 132 is eccentrically set. This allows the center position of the second shaft segment 132 to be adjusted by rotating the second connecting shaft 13, thereby driving the rear end of the swing arm 4 to move closer to or away from the cutting power surface 313. This drives the cutting blade 7 to move closer to or away from the central axis of the transmission shaft 1, thereby allowing fine adjustment of the position of any cutting blade 7 and making each cutting blade 7 concentrically set. Therefore, by setting the second shaft segment 132 eccentrically, the eccentric function of the second connecting shaft 13 can be used to reduce the machining accuracy of the parts of the connector cable automatic stripping device 100, making it easier to process and effectively reducing production costs. It should be further explained that the first mating arm 43 is also provided with a first positioning hole 432 corresponding to the first shaft segment 131. When the second connecting shaft 13 is rotated to the required position, the second connecting shaft 13 can be positioned by the first positioning pin, that is, the first positioning pin is inserted into the first positioning hole 432 and the first positioning pin abuts against the first shaft segment 131.

[0046] In this embodiment of the invention, the positioning arm 11 is Z-shaped and includes a first connecting segment 111, a middle segment 112, and a second connecting segment 113 connected in sequence. The end of the first connecting segment 111 away from the middle segment 112 abuts against the abutting inclined surface 101. The end of the second connecting segment 113 away from the middle segment 112 is connected to the non-functional end of the positioning piece 8. The swing arm 4 has a first groove 45 corresponding to the first connecting segment 111, a through groove 46 corresponding to the middle segment 112, and a second groove 47 corresponding to the second connecting segment 113 so that the positioning arm 11 passes through the swing arm 4. Specifically, as shown in the figure... Figures 1 to 17 as well as Figure 20As shown, the non-operating end of the cutter 7 has a relief notch 71, and the positioning piece 8 has a mating interface 81. The end of the first connecting section 111 away from the middle section 112 has a bent portion 1111 to abut against the abutting slope 101. The end of the second connecting section 113 away from the middle section 112 passes through the relief notch 71 and is connected to the mating interface 81. The second connecting section 113 passes through the relief notch 71 and does not contact the cutter 7. The first connecting section 111 is located in the first groove 45, and the middle section... 112 is located in the through groove 46, and the second connecting section 113 is located in the second groove 47. The swing arm 4 is also provided with a mounting groove corresponding to the second connecting section 113. A third elastic element 18 is installed in the mounting groove and is connected to the second connecting section 113 to keep the rear end of the positioning arm 11 in contact with the abutting inclined surface 101 so that the positioning piece 8 remains stable. The third elastic element 18 can be a spring. The positioning arm 11 in this embodiment of the invention has a very compact structure and a very ingenious design.

[0047] In embodiments of the present invention, such as Figures 9 to 10 as well as Figures 19 to 20 As shown, the first connecting shaft 5 includes a fourth shaft segment 51, a fifth shaft segment 52, and a sixth shaft segment 53 connected in sequence. The fourth shaft segment 51 and the sixth shaft segment 53 are coaxially arranged and both pass through the mounting base 2 and the swing arm 4. The central axis of the fifth shaft segment 52 is parallel to the central axis of the fourth shaft segment 51, so that the fifth shaft segment 52 is eccentrically arranged. The fifth shaft segment 52 passes through the intermediate section 112. Specifically, as shown... Figures 9 to 10 As shown, the fourth shaft segment 51, the fifth shaft segment 52, and the sixth shaft segment 53 are all cylindrical structures, as... Figure 4 As shown, the mounting base 2 is provided with a fourth mating hole 2401 and a fifth mating hole 2402 corresponding to the fourth shaft segment 51 and the sixth shaft segment 53, respectively. Figures 6 to 8 As shown, the swing arm 4 is provided with a sixth mating hole 481 and a seventh mating hole 482 corresponding to the fourth shaft segment 51 and the sixth shaft segment 53, respectively. Figures 15 to 16As shown, the middle section 112 has an eighth mating hole 1121 corresponding to the fifth shaft section 52. The fourth shaft section 51 passes through the fourth mating hole 2401 and the sixth mating hole 481, the fifth shaft section 52 passes through the eighth mating hole 1121, and the sixth shaft section 53 passes through the seventh mating hole 482 and the fifth mating hole 2402. The diameter of the fourth shaft section 51 is larger than the diameter of the fifth shaft section 52, and the diameter of the fifth shaft section 52 is larger than the diameter of the sixth shaft section 53. The axial projection of the fifth shaft section 52 is located inside the axial projection of the fourth shaft section 51, and the axial projection of the sixth shaft section 53 is located inside the axial projection of the fifth shaft section 52. This design facilitates the installation and positioning of the first connecting shaft 5. Furthermore, a slot can be provided at the end of the fourth shaft segment 51, and the fifth shaft segment 52 is eccentrically positioned. This allows the center position of the fifth shaft segment 52 to be adjusted by rotating the first connecting shaft 5, thereby moving the front end of the positioning arm 11 closer to or further away from the central axis of the transmission shaft 1. This, in turn, moves the positioning pieces closer to or further away from the central axis of the transmission shaft 1, allowing for fine-tuning of the position of any positioning piece 8 and ensuring concentric positioning of all positioning pieces 8. Therefore, by eccentrically positioning the fifth shaft segment 52, the adjustment function of the first connecting shaft 5 can be utilized to reduce the machining precision of the parts in the automatic wire stripping device 100 for connector cables, facilitating processing and effectively reducing production costs. It should be further noted that, as shown in sections 9 to... Figure 10 As shown, the fourth shaft segment 51 is also provided with a first recess 511, and the sixth shaft segment 53 is also provided with a second recess 531, as shown. Figure 4 As shown, the mounting base 2 is provided with a second positioning hole 250 on the first recess 511 and a third positioning hole 260 on the second recess 531. When the first connecting shaft 5 is rotated to the desired position, the first connecting shaft 5 can be positioned by the second positioning pin and the third positioning pin. That is, the second positioning pin is inserted into the second positioning hole 250 and abuts against the first recess 511, and the third positioning pin is inserted into the third positioning hole 260 and abuts against the second recess 531.

[0048] In embodiments of the present invention, such as Figure 2 as well as Figure 19As shown, the swing arm 4 has a first surface facing the transmission shaft 1, a second surface opposite to the first surface, and two side surfaces connecting the first and second surfaces. Connecting posts 14 protrude from each side surface. The connecting posts 14 are located on the side of the mounting base 2 facing the cutter power sleeve 3. A snap-fit ​​protrusion 16 is provided on the mounting base 2 corresponding to the connecting post 14. The connecting post 14 is connected to the snap-fit ​​protrusion 16 via a second elastic element 15. The second elastic element 15 applies a pulling force to bring the connecting post 14 closer to the mounting base 2, so that the roller 6 remains in contact with the cutter power surface 313. Specifically, the mounting arm 4... The surface of the mounting base 2 facing the cutting power sleeve 3 is the first mounting surface 210, and the surface opposite to the first mounting surface 210 is the second mounting surface 220. The snap-fit ​​protrusion 16 is connected to the first mounting surface 210. The second elastic element 15 can be a tension spring. By symmetrically arranging connecting posts 14 on the two side surfaces of the swing arm 4, the stability of the swing arm 4 is improved. The snap-fit ​​protrusion 16 can be a first screw. The shank of the first screw is only partially connected to the first mounting surface 210, so that the part of the shank between the head of the first screw and the first mounting surface 210 forms a connection part for connecting with the tension spring.

[0049] In embodiments of the present invention, such as Figure 2 , Figure 13 as well as Figure 17 As shown, the sliding assembly 9 includes a sliding seat 91 slidably sleeved on the sleeve portion 32 and a connecting piece 92. The connecting piece 92 is located on the side of the sliding seat 91 away from the mounting base 2 and is fixedly connected to the sliding seat 91. The connecting piece 92 has a snap-fit ​​portion 921 protruding outward. One end of the first elastic element 12 is connected to the snap-fit ​​portion 921, and the other end of the first elastic element 12 is connected to the mounting base 2. Specifically, a first connecting groove 911 is provided on the sliding seat 91, and a second connecting groove 314 is provided on the cutting power unit 31 corresponding to the first connecting groove 911. The second connecting groove 314 and the first connecting groove 911 are aligned with each other. The abutment piece 10 is inserted into the first connecting groove 911 and the second connecting groove 314. The abutment piece 10 is connected to the sliding seat 91 by a second screw passing through the abutment piece 10 and the sliding seat 91. A docking post 17 is provided on the side of the mounting base 2 facing the sliding seat 91. One end of the first elastic element 12 is connected to the snap-fit ​​part 921, and the other end is connected to the docking post 17. The design is ingenious. It should be noted that the connection method between the sliding component 9 and the first elastic element 12 and the connection method between the mounting base 2 and the first elastic element 12 are not limited, as long as the sliding component 9 and the mounting base 2 can be connected through the first elastic element 12.

[0050] In this embodiment of the invention, there are three swing arms 4, which are evenly distributed on the mounting base 2. Correspondingly, there are three positioning arms 11, each passing through one of the three swing arms 4. Specifically, there are three mounting slots 230, and the angle between the symmetrical center lines of two adjacent mounting slots 230 is 120 degrees. Of course, in some other specific embodiments, there may be two or four swing arms 4, and correspondingly, two or four cutters 7 and positioning pieces 8. The specific structures of the cutters 7 and positioning pieces 8 can be configured according to actual needs.

[0051] In embodiments of the present invention, such as Figures 11 to 12 As shown, the bottom end of the cutter 7 has a cutting edge 72, and the side of the cutter 7 has a first clearance surface 73. The angle between the cutting edge 72 and the first clearance surface 73 is 120 degrees. The bottom surface of the positioning piece 8 is the positioning surface 82, and the side of the positioning piece 8 has a second clearance surface 83. The angle between the positioning surface 82 and the second clearance surface 83 is 120 degrees. This allows the three positioning pieces 8 to approach and close to each other and be tangent to the surface of the connector cable, and also allows the three cutters 7 to approach and close to each other and cut the connector cable to the same depth.

[0052] In embodiments of the present invention, such as Figures 1 to 2 as well as Figure 4 As shown, the mounting base 2 has a fourth positioning hole 270 corresponding to the transmission shaft 1. A fourth positioning pin passes through the fourth positioning hole 270 and abuts against the transmission shaft 1 to fix the mounting base 2 to the transmission shaft 1. Specifically, during the installation of the automatic connector cable stripping device 100, the mounting base 2, swing arm 4, positioning arm 11, cutter power sleeve 3, sliding component 9, and other components (excluding the transmission shaft 1) can be assembled into one unit. Then, the assembled components are fitted onto the transmission shaft 1, and the mounting base 2 is fixed using the fourth positioning pin. The automatic connector cable stripping device 100 is very convenient to install and disassemble.

[0053] In embodiments of the present invention, such as Figure 1 as well as Figure 21 As shown, the transmission shaft 1 is a hollow transmission shaft, and a push rod 20 passes through the inside of the transmission shaft 1. A groove 110 is provided on the transmission shaft 1 corresponding to the cutter power unit 31. A connecting part 21 is connected to the cutter power unit 31, passing through the groove 110 and connecting to the push rod 20. The push rod 20 drives the cutter power sleeve 3 to move along the transmission shaft 1. Specifically, the connecting part 21 can be a third screw, which passes through the push rod 20 and the cutter power unit 31 and connects the push rod 20 and the cutter power unit 31, as shown. Figures 23 to 24 As shown, the end of the push rod 20 away from the connecting part 21 can be connected to the nut seat 22. The nut seat 22 cooperates with the lead screw to realize the back-and-forth movement of the nut seat 22, thereby driving the cutter power sleeve 3 to move along the transmission shaft 1.

[0054] like Figures 1 to 23 As shown, this embodiment of the invention also provides a concentricity verification method for the cutter 7 of the automatic wire stripping device for connector cables, used to perform concentricity verification on the cutter 7 of the automatic wire stripping device 100 for connector cables. The concentricity verification method for the cutter 7 includes: S1. A calibration rod 24 is inserted through the transmission shaft 1 and is coaxially arranged with the transmission shaft 1. The calibration rod 24 is also inserted between the cutters 7; specifically, as follows: Figures 22 to 23 As shown, the positioning piece 8 can be omitted before the cutter 7 is concentrically checked, making it easier to observe whether the cutter 7 is concentric. The calibration rod 24 includes a positioning section 241, a calibration section 242, and a connecting middle section 243 connecting the positioning section 241 and the calibration section 242. The positioning section 241, the calibration section 242, and the connecting middle section 243 are coaxially arranged. The positioning section 241 is also provided with an annular recess 2411, and a rubber ring is fitted on the annular recess 2411 to make the positioning section 241 tightly connected with the inner wall of the transmission shaft 1 to position the calibration rod 24. The calibration section 242 is used to check the concentricity of the cutter 7 and the positioning piece 8.

[0055] S2. Drive the cutting blade power sleeve 3 forward until at least one cutting blade 7 contacts the outer surface of the calibration bar 24. At this time, it is possible that all cutting blades 7 are in contact with the outer surface of the calibration section 242, that is, all cutting blades 7 are tangent to the outer surface of the calibration section 242, or it is possible that only one cutting blade 7 contacts the calibration section 242.

[0056] S3. Determine whether there is a cutter 7 that is not in contact with the calibration bar 24. If so, rotate the second connecting shaft 13 on the swing arm 4 corresponding to the cutter 7 until the cutter 7 contacts the outer surface of the calibration bar 24 and fix the rotated second connecting shaft 13. Specifically, for the cutter 7 that is not in contact with the calibration section 242, the swing arm 4 corresponding to the cutter 7 can be adjusted individually. That is, by rotating the second connecting shaft 13, the center position of the second shaft section 132 is adjusted so that the rear end of the swing arm 4 moves away from the cutter power surface 313, thereby driving the cutter 7 closer to the central axis of the transmission shaft 1. Thus, the position of the cutter 7 can be finely adjusted so that each cutter 7 is tangent to the calibration section 242, thereby making each cutter 7 concentrically set.

[0057] like Figures 1 to 23 As shown, this embodiment of the invention further provides a concentricity verification method for the positioning piece 8 of the automatic wire stripping device for connector cables, used to perform concentricity verification on the positioning piece 8 of the automatic wire stripping device 100 for connector cables. The concentricity verification method for the positioning piece 8 includes: S10. A calibration rod 24 is inserted into the transmission shaft 1 and is coaxially arranged with the transmission shaft 1. The calibration rod 24 is also inserted between the positioning pieces 8. Specifically, the calibration rod 24 includes a positioning section 241, a calibration section 242, and a connecting middle section 243 connecting the positioning section 241 and the calibration section 242. The positioning section 241, the calibration section 242, and the connecting middle section 243 are coaxially arranged. The positioning section 241 is also provided with an annular recess 2411. A rubber ring is fitted on the annular recess 2411 to make the positioning section 241 and the inner wall of the transmission shaft 1 fit tightly to position the calibration rod 24. The calibration section 242 is used to perform concentric calibration on the cutter 7 and the positioning pieces 8. In this embodiment of the invention, the concentric calibration of the cutter 7 can be performed first, and then the concentric calibration of the positioning pieces 8 can be performed. That is, after the concentric calibration of the cutter 7, the positioning pieces 8 are installed on the positioning arm 11 and inserted into the radial slot 41.

[0058] S20, drive the cutting blade power sleeve 3 forward until at least one positioning piece 8 contacts the outer surface of the calibration bar 24. At this time, it is possible that all positioning pieces 8 are in contact with the outer surface of the calibration section 242, that is, all positioning pieces 8 are tangent to the outer surface of the calibration section 242, or it is possible that only one positioning piece 8 contacts the calibration section 242.

[0059] S30. Determine whether there is a positioning piece 8 that is not in contact with the calibration rod 24. If so, rotate the first connecting shaft 5 on the positioning arm 11 corresponding to the positioning piece 8 until the positioning piece 8 contacts the outer surface of the calibration rod 24 and fix the rotated first connecting shaft 5. Specifically, for the positioning piece 8 that is not in contact with the calibration segment 242, the positioning arm 11 corresponding to the positioning piece 8 can be adjusted individually. That is, by rotating the first connecting shaft 5, the center position of the fifth shaft segment 52 is adjusted, which drives the front end of the positioning arm 11 to compress the third elastic element 18 and move it down, so as to drive the positioning piece 8 closer to the central axis of the transmission shaft 1. Thus, the position of the positioning piece 8 can be finely adjusted so that each positioning piece 8 is tangent to the calibration segment 242, thereby making each positioning piece 8 concentrically set.

[0060] The automatic wire stripping device 100 for connector cables of the present invention can easily ensure the concentricity of the cutter by setting the first connecting shaft 5 and the second connecting shaft 13 eccentrically and by verifying the concentricity of the cutter 7 and the positioning piece 8, thereby ensuring the stripping effect. Moreover, it does not have high requirements for the processing technology of the parts, thus reducing the processing and maintenance costs of the automatic wire stripping device 100 for connector cables.

[0061] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic wire stripping device for connector cables, characterized in that, The device includes a drive shaft, on which mounting seats and a cutting power sleeve are spaced apart. The mounting seats are fixedly connected to the front end of the drive shaft, and the cutting power sleeve is slidably sleeved on the drive shaft to move along the drive shaft under external force. The cutting power sleeve includes a cutting power part and a sleeve part connected to each other. The cutting power part includes a conical cutting power surface, and the sleeve part is located behind the cutting power part. The mounting base is provided with at least two swing arms evenly distributed along the circumference. The swing arms are rotatably connected to the mounting base via a first connecting shaft. Each swing arm has a radial slot at its front end. A cutter and a positioning plate are inserted into each radial slot. The cutter is located inside the positioning plate. The positioning plate is slidably connected to the radial slot. The positioning plate has an active end for crimping connector cables and a non-active end opposite to the active end. The rear end of the swing arm is provided with a roller, which is kept in contact with the power surface of the cutter. The automatic wire stripping device for connector cables also includes a sliding assembly, a contact plate, and a positioning arm corresponding to the positioning plate. The sliding assembly is slidably connected to the sleeve portion and is connected to the mounting base via a first elastic element. The first elastic element is used to apply a pulling force to bring the sliding assembly closer to the mounting base. The contact plate is connected to the sliding assembly, and the front end of the contact plate includes a contact slope located inside the cutting blade's power surface. The positioning arm passes through the swing arm and is rotatably connected to the mounting base via the first connecting shaft. The front end of the positioning arm is connected to the non-operating end of the positioning plate, and the rear end of the positioning arm maintains contact with the contact slope.

2. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The roller is connected to the swing arm via a second connecting shaft. The second connecting shaft includes a first shaft segment, a second shaft segment, and a third shaft segment connected in sequence. The first shaft segment and the third shaft segment are coaxially arranged and both pass through the swing arm. The central axis of the second shaft segment is parallel to the central axis of the first shaft segment so that the second shaft segment is eccentrically arranged. The second shaft segment passes through the roller.

3. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The positioning arm is Z-shaped and includes a first connecting segment, a middle segment, and a second connecting segment connected in sequence. The end of the first connecting segment away from the middle segment abuts against the abutting inclined surface. The end of the second connecting segment away from the middle segment is connected to the non-functional end of the positioning piece. The swing arm has a first groove corresponding to the first connecting segment, a through groove corresponding to the middle segment, and a second groove corresponding to the second connecting segment so that the positioning arm passes through the swing arm.

4. The automatic wire stripping device for connector cables as described in claim 3, characterized in that, The first connecting shaft includes a fourth shaft segment, a fifth shaft segment, and a sixth shaft segment connected in sequence. The fourth shaft segment and the sixth shaft segment are coaxially arranged and both pass through the mounting base and the swing arm. The central axis of the fifth shaft segment is parallel to the central axis of the fourth shaft segment so that the fifth shaft segment is eccentrically arranged. The fifth shaft segment passes through the middle section.

5. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The swing arm has a first surface facing the transmission shaft, a second surface opposite to the first surface, and two side surfaces connecting the first surface and the second surface. Connecting posts are protruding from the two side surfaces to the sides. The connecting posts are located on the side of the mounting base facing the cutter power sleeve. The mounting base has a snap-fit ​​protrusion corresponding to the connecting post. The connecting post is connected to the snap-fit ​​protrusion through a second elastic element. The second elastic element is used to apply a pulling force to bring the connecting post closer to the mounting base so that the roller remains in contact with the cutter power surface.

6. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The sliding assembly includes a sliding seat slidably sleeved on the sleeve portion and a connecting piece. The connecting piece is located on the side of the sliding seat away from the mounting base and is fixedly connected to the sliding seat. The connecting piece has a snap-fit ​​portion protruding outward. One end of the first elastic element is connected to the snap-fit ​​portion, and the other end of the first elastic element is connected to the mounting base.

7. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, There are three swing arms and three corresponding positioning arms, with the three positioning arms respectively inserted into the three swing arms.

8. The automatic wire stripping device for connector cables as described in claim 7, characterized in that, The cutter has a cutting edge at its bottom end and a first clearance surface on its side. The angle between the cutting edge and the first clearance surface is 120 degrees. The bottom surface of the positioning piece is a positioning surface, and the side of the positioning piece has a second clearance surface. The angle between the positioning surface and the second clearance surface is 120 degrees.

9. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The mounting base has a fourth positioning hole corresponding to the transmission shaft, and a fourth positioning pin passes through the fourth positioning hole. The fourth positioning pin abuts against the transmission shaft so that the mounting base is fixedly connected to the transmission shaft.

10. The automatic wire stripping device for connector cables as described in claim 1, characterized in that, The transmission shaft is hollow, and a push rod passes through the inside of the transmission shaft. The transmission shaft has a groove corresponding to the cutter power unit. A connecting part is connected to the cutter power unit. The connecting part passes through the groove and is connected to the push rod. The push rod drives the cutter power sleeve to move along the transmission shaft.

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