Automatic positioning and peeling device for axial center of vehicle-mounted coaxial harness

Abstract

The invention belongs to the technical field of vehicle-mounted wire harness processing equipment, and particularly relates to a vehicle-mounted coaxial wire harness axial center automatic positioning and peeling device which comprises an outer shaft assembly, an inner shaft assembly, a cutter assembly, a blade transmission mechanism, a pressing piece transmission mechanism and an elastic connecting assembly. The outer shaft assembly comprises an outer shaft, a belt wheel, a second motor and a third fixing plate, an axial hollow area is arranged in the outer shaft, a stroke hole extending in the axial direction of the outer shaft is formed in the side wall of the outer shaft, the belt wheel is fixedly arranged on the outer wall of the outer shaft in a sleeving mode, and the second motor is fixed to the third fixing plate; the output end of the second motor is in transmission connection with the belt wheel so as to drive the outer shaft to rotate around the axis of the outer shaft. According to the invention, a plurality of groups of symmetrically distributed extension springs are adopted to replace a single compression spring, so that the blade transmission frame and the pressing sheet transmission frame are uniformly stressed, the sliding smoothness is effectively improved, and the positioning precision and the peeling efficiency are further remarkably improved.

Description

Technical Field

[0001] This invention belongs to the technical field of vehicle wiring harness processing equipment, and relates to an automated positioning and stripping device for the axial center of a vehicle coaxial harness. Background Technology

[0002] Automotive coaxial cable harnesses are critical connection components in automotive electronic systems, and their processing precision directly affects the signal transmission stability and security of automotive electronic devices. During the processing of automotive coaxial cable harnesses, the stripping process requires precise removal of the cable insulation while avoiding damage to the internal core wires, and ensuring accurate axial center positioning of the cable to meet the installation requirements of automotive equipment. Existing coaxial cable harness stripping devices mostly adopt a structure of "inner shaft with compression spring abutting against the pressure plate transmission frame," which has the following problems: First, uneven force on a single compression spring leads to poor sliding between the pressure plate transmission frame and the blade transmission frame, affecting positioning accuracy and stripping efficiency. Second, after the compression spring fails due to fatigue, the inner shaft must be removed from the axial hollow area of ​​the outer shaft for replacement, which is cumbersome and time-consuming, seriously affecting the continuity of the production line. Third, the stripping process is repeated thousands of times per day, and the compression spring is prone to fatigue failure, resulting in a decrease in length and elasticity. This prevents the pressure plate transmission frame from reaching the preset position, and the pressure plate fails to effectively constrain the axial center of the cable harness. The cable harness shakes during rotation, which in turn damages the internal core wires of the blade, causing stripping failure. This makes it difficult to meet the high requirements of processing accuracy and stability for automotive coaxial cable harnesses. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing an automated positioning and peeling device for the axial center of a vehicle-mounted coaxial cable harness.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automated positioning and peeling device for the axial center of a vehicle-mounted coaxial cable harness, comprising an outer shaft assembly, an inner shaft assembly, a cutter assembly, a blade transmission mechanism, a pressing transmission mechanism, and an elastic connection assembly; the outer shaft assembly includes an outer shaft, a pulley, a second motor, and a third fixing plate; the outer shaft has an axially hollow region inside; the outer shaft sidewall has a stroke hole extending axially; the pulley is fixedly sleeved on the outer wall of the outer shaft; the second motor is fixed to the third fixing plate; and the output end of the second motor is connected to the pulley for transmission to drive the outer shaft to rotate around its own axis; The inner shaft assembly includes an inner shaft, a first motor, a third movable plate, and a first guide shaft. The inner shaft passes through the axial hollow region of the outer shaft and is coaxially arranged with the outer shaft. The two ends of the first guide shaft are respectively fixed to a second movable plate and a fourth fixed plate. The third movable plate is slidably connected to the first guide shaft through a linear bearing. The inner shaft is fixedly connected to the third movable plate through a third bearing seat. The first motor is fixed to the second movable plate and is driven by a first lead screw and a first lead screw nut on the third movable plate to drive the inner shaft to move axially. The cutting tool assembly includes a cutting tool base, a cutting tool cover, a cutting tool cutter frame, and a sleeve. The first end of the cutting tool cutter frame is fixedly connected to the end of the outer shaft, and the second end of the cutting tool cutter frame is fixedly connected to the cutting tool base. The sleeve is fixed to the first end of the cutting tool cutter frame. After the cutting tool cover and the cutting tool base are closed, they form a radial guide groove for the cutting tool and a radial guide groove for the pressing plate.

[0005] In the aforementioned vehicle-mounted coaxial cable harness axial center automated positioning and stripping device, the blade transmission mechanism includes a blade fixing block, a blade transmission frame, a blade lever, a blade pusher block, and a blade. One end of the blade fixing block is fixedly connected to the inner shaft, and the other end passes through the stroke hole and is fixedly connected to the blade transmission frame. The blade transmission frame has a blade groove. The first end of the blade lever has a blade slip ring, which is slidably embedded in the blade groove. The middle part of the blade lever is hinged to the tool assembly through a blade eccentric pin. The second end of the blade lever abuts against the blade pusher block, which is slidably embedded in the blade radial guide groove. The blade is fixed to the end of the blade pusher block facing the cable harness.

[0006] In the aforementioned vehicle-mounted coaxial cable harness axial center automated positioning and stripping device, the pressing transmission mechanism includes a pressing block, a pressing transmission frame, a pressing lever, a pressing push block, and a pressing plate. The diameter of the pressing block is larger than the inner shaft diameter. One end of the pressing block passes through the stroke hole and is fixedly connected to the pressing transmission frame. The pressing transmission frame has a pressing groove. The first end of the pressing lever has a pressing slip ring, which is slidably embedded in the pressing groove. The middle part of the pressing lever is hinged to the tool assembly through a pressing eccentric pin. The second end of the pressing lever abuts against the pressing push block. The pressing push block is slidably embedded in the pressing radial guide groove. The pressing plate is fixed to the end of the pressing push block facing the cable harness.

[0007] In the above-mentioned vehicle-mounted coaxial beam axial center automated positioning and peeling device, the elastic connection assembly includes at least two sets of tension springs. The two ends of the tension springs are fixedly connected to the blade transmission frame and the pressing plate transmission frame, respectively, and each set of tension springs is symmetrically distributed along the inner shaft axis.

[0008] The aforementioned vehicle-mounted coaxial cable harness axial center automated positioning and stripping device also includes a failure detection component. The failure detection component includes a first proximity switch and a second proximity switch. The first proximity switch is fixed to the fourth fixed plate, and a first sensing plate is fixed on the third movable plate. The first sensing plate cooperates with the first proximity switch to detect the initial position of the blade transmission frame. The second proximity switch is fixed to the radial end face of the first bearing seat, and the pressing frame has a circumferential end face. The circumferential end face cooperates with the second proximity switch to detect the position of the pressing frame.

[0009] The aforementioned vehicle-mounted coaxial cable harness axial center automated positioning and peeling device also includes a displacement sensor. The displacement sensor includes a transmitter and a receiver. The two ends of the tension spring are respectively fixed to the blade transmission frame and the pressing plate transmission frame by screws and nuts. The transmitter is fixed to the first screw on the blade transmission frame, and the receiver is fixed to the second screw on the pressing plate transmission frame. The displacement sensor is used to detect the distance between the first screw and the second screw.

[0010] In the aforementioned vehicle-mounted coaxial cable harness axial center automated positioning and peeling device, the outer shaft assembly further includes a third motor, a third lead screw, and a third guide shaft; the two ends of the third guide shaft are respectively fixed to a first fixed plate and a second fixed plate, and the second movable plate is slidably connected to the third guide shaft through a third linear bearing seat; the third motor is fixed to the second fixed plate, the third lead screw is rotatably connected to the second fixed plate through a third lead screw fixing seat, and the third lead screw is threadedly connected to a third lead screw nut on the second movable plate; the third motor drives the third lead screw to rotate to drive the outer shaft to move axially.

[0011] In the aforementioned vehicle-mounted coaxial cable harness axial center automatic positioning and stripping device, the outer shaft is connected to the first movable plate and the second movable plate respectively through a first bearing seat and a second bearing seat. The inner ring of the first bearing seat is fixedly connected to the outer shaft, and the outer ring of the first bearing seat is fixedly connected to the first movable plate. The inner ring of the second bearing seat is fixedly connected to the outer shaft, and the outer ring of the second bearing seat is fixedly connected to the second movable plate. A radial locking nut is provided at the second bearing seat to lock the outer shaft.

[0012] In the aforementioned vehicle-mounted coaxial harness axial center automated positioning and peeling device, four sets of tension springs are provided, and the four sets of tension springs are respectively located in the four circumferential directions of the blade transmission frame and the pressing plate transmission frame.

[0013] In the above-mentioned vehicle-mounted coaxial beam axial center automated positioning and peeling device, the blade drive frame and the tablet press drive frame are interlocked, and the blade slide groove and the tablet press slide groove are arranged in a one-to-one correspondence.

[0014] Compared with existing technologies, the advantages of this invention are: 1. This invention uses multiple sets of symmetrically distributed tension springs instead of a single compression spring, ensuring uniform force distribution between the blade drive frame and the pressing drive frame, effectively improving sliding smoothness, and thus significantly enhancing positioning accuracy and peeling efficiency. The tension springs can be replaced without removing the inner shaft; replacement can be completed externally, greatly reducing equipment downtime and ensuring continuous and stable operation of the production line.

[0015] 2. This invention monitors the deformation of the tension spring in real time through a displacement sensor, and combines the failure detection component to accurately detect the position of the blade drive frame and the pressure plate drive frame. This can provide early warning of the risk of spring fatigue failure, avoid the problem of wire harness shaking and blade damage to the core wire caused by the decrease of spring force, and fully meet the requirements of automotive coaxial harness for processing accuracy and stability.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Figure 4 This is a front view of the present invention.

[0021] Figure 5 This is an exploded view of the cutting tool assembly of the present invention.

[0022] Figure 6 This is an exploded view of the cutting tool assembly of the present invention.

[0023] Figure 7 This is an external schematic diagram of the cutting tool assembly of the present invention.

[0024] Figure 8 This is a partial schematic diagram of the cutting tool assembly of the present invention.

[0025] Figure 9 This is a schematic diagram of the tablet pressing pusher of the present invention.

[0026] Figure 10 This is a schematic diagram of the tablet compression process of the present invention.

[0027] Figure 11 This is a schematic diagram of the blade pusher block of the present invention.

[0028] Figure 12 This is a schematic diagram of the blade of the present invention.

[0029] Figure 13 This is a schematic diagram of the position of the circumferential end face of the present invention.

[0030] Figure 14 This is a schematic diagram of the second motor connection point of the present invention.

[0031] Figure 15 This is a schematic diagram of the unfolded outer shaft assembly of the present invention.

[0032] In the diagram: 21. First motor; 23. Inner shaft; 24. Blade fixing block; 25. Blade transmission frame; 26. Blade lever; 27. Blade pusher block; 28. Blade; 29. ​​Blade eccentric pin; 34. Pressing block; 35. Pressing transmission frame; 36. Pressing lever; 37. Pressing pusher block; 38. Pressing plate; 39. Pressing eccentric pin; 41. Third motor; 43. Third lead screw; 51. Second motor; 52. Pulley; 53. Outer shaft; 54. Tool cutter holder; 55. Tool base; 56. Tool cover; 57. Cover; 61. First bearing seat; 62. Second bearing seat; 63. Radial lock nut; 64. Third bearing seat; 81. Third guide shaft ; 82. Third linear bearing seat; 83. First guide shaft; 11. First fixed plate; 12. Second fixed plate; 13. Third fixed plate; 14. Fourth fixed plate; 141. First proximity switch; 210. Third movable plate; 211. First lead screw; 213. First sensing plate; 421. First screw; 431. Second screw; 432. Third lead screw nut; 433. Third lead screw fixing seat; 530. Stroke hole; 2110. First lead screw nut; 251. Blade slide groove; 261. Blade slip ring; 351. Pressure plate slide groove; 352. Circumferential end face; 361. Pressure plate slip ring; 44. Second movable plate; 46. First movable plate; 611. Radial end face. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] like Figure 1-15As shown, an automated positioning and peeling device for the axial center of a vehicle-mounted coaxial cable harness includes an outer shaft assembly, an inner shaft assembly, a cutter assembly, a blade transmission mechanism, a pressing transmission mechanism, and an elastic connection assembly. The outer shaft assembly includes an outer shaft 53, a pulley 52, a second motor 51, and a third fixing plate 13. The outer shaft 53 has an axially hollow area inside, and a stroke hole 530 extending axially is opened on the side wall of the outer shaft 53. The pulley 52 is fixedly sleeved on the outer wall of the outer shaft 53. The second motor 51 is fixed to the third fixing plate 13, and the output end of the second motor 51 is connected to the pulley 52 to drive the outer shaft 53 to rotate around its own axis. The inner shaft assembly includes an inner shaft 23, a first motor 21, a third movable plate 210, and a first guide shaft 83. The inner shaft 23 passes through the axial hollow region of the outer shaft 53 and is coaxially arranged with the outer shaft 53. The two ends of the first guide shaft 83 are respectively fixed to the second movable plate 44 and the fourth fixed plate 14. The third movable plate 210 is slidably connected to the first guide shaft 83 through a linear bearing. The inner shaft 23 is fixedly connected to the third movable plate 210 through a third bearing seat 64. The first motor 21 is fixed to the second movable plate 44, and the first motor 21 is connected to the first lead screw nut 2110 on the third movable plate 210 through a first lead screw 211 to drive the inner shaft 23 to move axially. The cutting tool assembly includes a cutting tool base 55, a cutting tool cover 56, a cutting tool cutter frame 54, and a cover 57. The first end of the cutting tool cutter frame 54 is fixedly connected to the end of the outer shaft 53, and the second end of the cutting tool cutter frame 54 is fixedly connected to the cutting tool base 55. The cover 57 is fixed to the first end of the cutting tool cutter frame 54. After the cutting tool cover 56 and the cutting tool base 55 are closed, they form a radial guide groove for the cutting tool and a radial guide groove for the pressing plate.

[0035] Furthermore, the blade transmission mechanism includes a blade fixing block 24, a blade transmission frame 25, a blade lever 26, a blade pusher block 27, and a blade 28. One end of the blade fixing block 24 is fixedly connected to the inner shaft 23, and the other end passes through the stroke hole 530 and is fixedly connected to the blade transmission frame 25. The blade transmission frame 25 has a blade slide groove 251. The first end of the blade lever 26 has a blade slip ring 261, which is slidably embedded in the blade slide groove 251. The middle part of the blade lever 26 is hinged to the tool assembly through a blade eccentric pin 29. The second end of the blade lever 26 abuts against the blade pusher block 27, which is slidably embedded in the blade radial guide groove. The blade 28 is fixed to the end of the blade pusher block 27 facing the wire harness.

[0036] Furthermore, the tablet pressing transmission mechanism includes a tablet fixing block 34, a tablet pressing transmission frame 35, a tablet pressing lever 36, a tablet pressing push block 37, and a tablet 38. The diameter of the hole in the tablet fixing block 34 is larger than the diameter of the hole in the inner shaft 23. One end of the tablet fixing block 34 passes through the stroke hole 530 and is fixedly connected to the tablet pressing transmission frame 35. The tablet pressing transmission frame 35 is provided with a tablet pressing groove 351. The first end of the tablet pressing lever 36 is provided with a tablet pressing slip ring 361, which is slidably embedded in the tablet pressing groove 351. The middle part of the tablet pressing lever 36 is hinged to the tool assembly through a tablet pressing eccentric pin 39. The second end of the tablet pressing lever 36 abuts against the tablet pressing push block 37, which is slidably embedded in the tablet pressing radial guide groove. The tablet 38 is fixed to the end of the tablet pressing push block 37 facing the wire harness.

[0037] Furthermore, the elastic connection assembly includes at least two sets of tension springs, with both ends of the tension springs fixedly connected to the blade transmission frame 25 and the tablet transmission frame 35, respectively, and each set of tension springs is symmetrically distributed along the inner shaft 23 axis.

[0038] Furthermore, it also includes a failure detection component, which includes a first proximity switch 141 and a second proximity switch; the first proximity switch 141 is fixed to the fourth fixed plate 14, and a first sensing plate 213 is fixed on the third movable plate 210. The first sensing plate 213 cooperates with the first proximity switch 141 to detect the initial position of the blade transmission frame 25; the second proximity switch is fixed to the radial end face 611 of the first bearing seat 61, and the tablet transmission frame 35 is provided with a circumferential end face 352. The circumferential end face 352 cooperates with the second proximity switch to detect the position of the tablet transmission frame 35.

[0039] In this embodiment, the first proximity switch 141 and the second proximity switch can accurately sense the positional changes of the first sensing element 213 and the circumferential end face 352. When the blade drive frame 25 returns to its initial position, the first sensing element 213 enters the sensing range of the first proximity switch 141, and the first proximity switch 141 then sends a signal indicating that the blade drive frame 25 is in place.

[0040] Furthermore, it also includes a displacement sensor, which includes a transmitter and a receiver. The two ends of the tension spring are respectively fixed to the blade transmission frame 25 and the tablet transmission frame 35 by screws and nuts. The transmitter is fixed to the first screw 421 on the blade transmission frame 25, and the receiver is fixed to the second screw 431 on the tablet transmission frame 35. The displacement sensor is used to detect the distance between the first screw 421 and the second screw 431.

[0041] In this embodiment, by setting a displacement sensor, the relative position change between the blade drive frame and the tablet press drive frame can be monitored in real time and accurately.

[0042] Furthermore, the outer shaft assembly also includes a third motor 41, a third lead screw 43, and a third guide shaft 81; the two ends of the third guide shaft 81 are respectively fixed to the first fixed plate 11 and the second fixed plate 12, and the second movable plate 44 is slidably connected to the third guide shaft 81 through a third linear bearing seat 82; the third motor 41 is fixed to the second fixed plate 12, the third lead screw 43 is rotatably connected to the second fixed plate 12 through a third lead screw fixing seat 431, the third lead screw 43 is threadedly connected to the third lead screw nut 432 on the second movable plate 44, and the third motor 41 drives the third lead screw 43 to rotate to drive the outer shaft 53 to move axially.

[0043] In this embodiment, the precise axial movement of the outer shaft 53 is achieved through the coordinated action of the third motor 41, the third lead screw 43, and the third guide shaft 81. After the third motor 41 is started, it drives the third lead screw 43 to rotate. Since the third lead screw 43 is threadedly connected to the third lead screw nut 432 on the second movable plate 44, the rotating third lead screw 43 will drive the second movable plate 44 to slide along the third guide shaft 81.

[0044] Furthermore, the outer shaft 53 is connected to the first movable plate 46 and the second movable plate 44 respectively via the first bearing seat 61 and the second bearing seat 62. The inner ring of the first bearing seat 61 is fixedly connected to the outer shaft 53, and the outer ring of the first bearing seat 61 is fixedly connected to the first movable plate 46. The inner ring of the second bearing seat 62 is fixedly connected to the outer shaft 53, and the outer ring of the second bearing seat 62 is fixedly connected to the second movable plate 44. A radial locking nut 63 is provided at the second bearing seat 62 to lock the outer shaft 53.

[0045] Furthermore, the tension spring is provided in four sets, and the four sets of tension springs are respectively provided in the four circumferential directions of the blade transmission frame 25 and the pressing plate transmission frame 35.

[0046] Furthermore, the blade drive frame 25 and the tablet drive frame 35 are interlocked, and the blade slide groove 251 and the tablet slide groove 351 are arranged in a one-to-one correspondence.

[0047] In this embodiment, the engagement of the blade drive frame 25 and the tablet drive frame 35 ensures their synchronization during movement, while the one-to-one correspondence between the blade slide groove 251 and the tablet slide groove 351 enables the blade and the tablet to precisely cooperate, achieving precise stripping of the wire harness.

[0048] The working principle of this invention is: When the coaxial stripping device is in operation, the second motor 51 first drives the outer shaft 53 to rotate along the axial center via the pulley 52, providing stable rotational power for the entire stripping process. At the same time, the third motor 41 drives the third lead screw 43 to rotate via the synchronous belt and pulley transmission, thereby causing the second movable plate 44 to move relative to the second fixed plate 12, so as to adjust the axial position of the outer shaft 53 and ensure that the blade can be accurately aligned with the insulation of the wire harness.

[0049] During the peeling process, the first motor 21 drives the first lead screw 211 to rotate, causing the third movable plate 210 to move relative to the second movable plate 44 or the fourth fixed plate 14, thereby adjusting the axial position of the inner shaft 23. The movement of the inner shaft 23 drives the blade fixing block 24 and the blade transmission frame 25 to move forward. Under the push of the blade transmission frame 25, the blade lever 26 causes the blade slip ring 261 to slide uphill in the blade slide groove 251. The second end of the blade lever 26 swings downward around the blade eccentric pin 29, pushing the blade pusher block 27 to move towards the center in the blade radial guide groove, and the blades 28 come together to contact or embed in the insulating skin.

[0050] Simultaneously, the tablet fixing block 34 passes through the stroke hole 530 and is fixedly connected to the tablet transmission frame 35. The tablet transmission frame 35 moves forward, causing the tablet slip ring 361 to slide uphill in the tablet slide groove 351. The second end of the tablet lever 36 swings downward around the tablet eccentric pin 39, pushing the tablet push block 37 to move towards the center in the tablet radial guide groove. Each tablet 38 comes together to abut or clamp the insulating skin, completing the positioning and centering action. At this time, the front blade transmission frame 25 and the rear tablet transmission frame 35 are interlocked, ensuring that the blade slide groove 251 corresponds one-to-one with the tablet slide groove 351.

[0051] The first tension spring 41 and the second tension spring 44 are respectively located in four directions or two symmetrical directions of the blade drive frame 25 and the pressure plate drive frame 35, ensuring even force distribution for smooth sliding and preventing jamming. When the inner shaft 23 pushes the blade drive frame 25 forward, it pulls the pressure plate drive frame 35 forward as well. When the pressure plate 38 encounters the wire harness, it encounters resistance and will not continue to press down, thus clamping the wire harness in the middle and completing the positioning and centering action. Subsequently, the inner shaft 23 continues to push the blade drive frame 25 forward, the tension springs extend axially, and the blade 28 embeds into the insulation layer of the wire harness. The outer shaft 53 drives the inner shaft 23 to rotate to cut the insulation, and then both retract to peel off the insulation.

[0052] The specific embodiments described herein are merely illustrative examples of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention.

[0053] Although this article frequently uses the following terms: 21. First motor; 23. Inner shaft; 24. Blade fixing block; 25. Blade transmission frame; 26. Blade lever; 27. Blade push block; 28. Blade; 29. ​​Blade eccentric pin; 34. Pressing block; 35. Pressing transmission frame; 36. Pressing lever; 37. Pressing push block; 38. Pressing plate; 39. Pressing eccentric pin; 41. Third motor; 43. Third lead screw; 51. Second motor; 52. Pulley; 53. Outer shaft; 54. Tool cutter holder; 55. Tool base; 56. Tool cover; 57. Cover; 61. First bearing seat; 62. Second bearing seat; 63. Radial lock nut; 64. Third bearing seat; 81. Third guide shaft; 82. Third straight... The terminology used includes: 83, first guide shaft; 11, first fixed plate; 12, second fixed plate; 13, third fixed plate; 14, fourth fixed plate; 141, first proximity switch; 210, third movable plate; 211, first lead screw; 213, first sensing plate; 421, first screw; 431, second screw; 432, third lead screw nut; 433, third lead screw fixing seat; 530, stroke hole; 2110, first lead screw nut; 251, blade groove; 261, blade slip ring; 351, pressure plate groove; 352, circumferential end face; 361, pressure plate slip ring; 44, second movable plate; 46, first movable plate; 611, radial end face, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention, and interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. An automated positioning and peeling device for the axial center of a vehicle-mounted coaxial cable harness, characterized in that, It includes an outer shaft assembly, an inner shaft assembly, a cutting tool assembly, a blade transmission mechanism, a tablet pressing transmission mechanism, and an elastic connection assembly; the outer shaft assembly includes an outer shaft (53), a pulley (52), a second motor (51), and a third fixing plate (13). The outer shaft (53) has an axially hollow area inside, and the side wall of the outer shaft (53) has a stroke hole (530) extending along its axial direction. The pulley (52) is fixedly sleeved on the outer wall of the outer shaft (53). The second motor (51) is fixed to the third fixing plate (13), and the output end of the second motor (51) is connected to the pulley (52) to drive the outer shaft (53) to rotate around its own axis. The inner shaft assembly includes an inner shaft (23), a first motor (21), a third movable plate (210), and a first guide shaft (83). The inner shaft (23) passes through the axial hollow area of ​​the outer shaft (53) and is coaxially arranged with the outer shaft (53). The two ends of the first guide shaft (83) are respectively fixed to the second movable plate (44) and the fourth fixed plate (14). The third movable plate (210) is slidably connected to the first guide shaft (83) through a linear bearing. The inner shaft (23) is fixedly connected to the third movable plate (210) through a third bearing seat (64). The first motor (21) is fixed to the second movable plate (44), and the first motor (21) is connected to the first lead screw nut (2110) on the third movable plate (210) through a first lead screw (211) to drive the inner shaft (23) to move axially. The tool assembly includes a tool base (55), a tool cover (56), a tool cutter frame (54), and a sleeve (57). The first end of the tool cutter frame (54) is fixedly connected to the end of the outer shaft (53), and the second end of the tool cutter frame (54) is fixedly connected to the tool base (55). The sleeve (57) is fixed to the first end of the tool cutter frame (54). After the tool cover (56) and the tool base (55) are closed, a radial guide groove for the blade and a radial guide groove for the pressing plate are formed.

2. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 1, characterized in that, The blade transmission mechanism includes a blade fixing block (24), a blade transmission frame (25), a blade lever (26), a blade pusher (27), and a blade (28). One end of the blade fixing block (24) is fixedly connected to the inner shaft (23), and the other end passes through the stroke hole (530) and is fixedly connected to the blade transmission frame (25). The blade transmission frame (25) is provided with a blade slide groove (251). The first end of the blade lever (26) is provided with a blade slip ring (261). The blade slip ring (261) is slidably embedded in the blade slide groove (251). The middle part of the blade lever (26) is hinged to the tool assembly through a blade eccentric pin (29). The second end of the blade lever (26) abuts against the blade pusher (27). The blade pusher (27) is slidably embedded in the blade radial guide groove. The blade (28) is fixed to the end of the blade pusher (27) facing the wire harness.

3. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 2, characterized in that, The tablet pressing transmission mechanism includes a tablet fixing block (34), a tablet pressing transmission frame (35), a tablet pressing lever (36), a tablet pressing push block (37), and a tablet (38). The diameter of the hole in the tablet fixing block (34) is larger than the diameter of the hole in the inner shaft (23). One end of the tablet fixing block (34) passes through the stroke hole (530) and is fixedly connected to the tablet pressing transmission frame (35). The tablet pressing transmission frame (35) is provided with a tablet pressing groove (351). The tablet pressing lever (36) The first end is provided with a pressure slip ring (361), which is slidably embedded in the pressure slip groove (351). The middle part of the pressure lever (36) is hinged to the tool assembly through the pressure eccentric pin (39). The second end of the pressure lever (36) abuts against the pressure push block (37). The pressure push block (37) is slidably embedded in the pressure radial guide groove. The pressure plate (38) is fixed to the end of the pressure push block (37) facing the wire harness.

4. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 3, characterized in that, The elastic connection assembly includes at least two sets of tension springs, with both ends of the tension springs fixedly connected to the blade transmission frame (25) and the pressing frame (35), respectively, and each set of tension springs is symmetrically distributed along the inner shaft (23) axis.

5. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 4, characterized in that, It also includes a failure detection component, which includes a first proximity switch (141) and a second proximity switch; the first proximity switch (141) is fixed to the fourth fixed plate (14), and a first sensing plate (213) is fixed on the third movable plate (210). The first sensing plate (213) cooperates with the first proximity switch (141) to detect the initial position of the blade transmission frame (25); the second proximity switch is fixed to the radial end face (611) of the first bearing seat (61), and the tablet transmission frame (35) is provided with a circumferential end face (352). The circumferential end face (352) cooperates with the second proximity switch to detect the position of the tablet transmission frame (35).

6. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 5, characterized in that, It also includes a displacement sensor, which includes a transmitter and a receiver. The two ends of the tension spring are fixed to the blade transmission frame (25) and the tablet transmission frame (35) respectively by screws and nuts. The transmitter is fixed to the first screw (421) on the blade transmission frame (25), and the receiver is fixed to the second screw (431) on the tablet transmission frame (35). The displacement sensor is used to detect the distance between the first screw (421) and the second screw (431).

7. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 6, characterized in that, The outer shaft assembly also includes a third motor (41), a third lead screw (43), and a third guide shaft (81); the two ends of the third guide shaft (81) are fixed to the first fixed plate (11) and the second fixed plate (12) respectively, and the second movable plate (44) is slidably connected to the third guide shaft (81) through the third linear bearing seat (82); the third motor (41) is fixed to the second fixed plate (12), the third lead screw (43) is rotatably connected to the second fixed plate (12) through the third lead screw fixing seat (433), the third lead screw (43) is threadedly connected to the third lead screw nut (432) on the second movable plate (44), and the third motor (41) drives the third lead screw (43) to rotate to drive the outer shaft (53) to move axially.

8. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 7, characterized in that, The outer shaft (53) is connected to the first movable plate (46) and the second movable plate (44) respectively through the first bearing seat (61) and the second bearing seat (62). The inner ring of the first bearing seat (61) is fixedly connected to the outer shaft (53), and the outer ring of the first bearing seat (61) is fixedly connected to the first movable plate (46). The inner ring of the second bearing seat (62) is fixedly connected to the outer shaft (53), and the outer ring of the second bearing seat (62) is fixedly connected to the second movable plate (44). A radial locking nut (63) is provided at the second bearing seat (62) to lock the outer shaft (53).

9. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 8, characterized in that, The tension spring is provided in four sets, and the four sets of tension springs are respectively provided in the four circumferential directions of the blade transmission frame (25) and the pressing plate transmission frame (35).

10. The vehicle-mounted coaxial cable harness axial center automated positioning and stripping device according to claim 9, characterized in that, The blade drive frame (25) and the tablet drive frame (35) are fitted together, and the blade slide groove (251) and the tablet slide groove (351) are arranged in a one-to-one correspondence.

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